Core pulling machine for processing carbon fiber tube

Abstract

The invention discloses a core pulling machine for processing a carbon fiber tube, and relates to the technical field of carbon fiber tube production and processing, in particular to a core pulling machine which comprises a base, a first fixing frame is fixedly connected to the middle of the upper surface of the base, a fixed rotating tube is rotatably connected to the inner side of the first fixing frame, and a core rod is movably mounted at one end of the fixed rotating tube; an exhaust hole is formed in the inner side of the core rod, a plurality of meshing boxes distributed in an annular array are arranged on the inner side of the core rod, supports are fixedly connected to the two sides of each meshing box, and the two supports are fixedly connected with the inner wall of the core rod. The first motor can drive the rotating disc to rotate, the rotating rotating disc can be sequentially matched with a plurality of auxiliary wheels to achieve movement of the second movable arm, a reversing gear is matched to enable a plurality of sealing plugs to be sequentially matched with the sealing plugs to achieve opening and closing, and an air pump is matched to enable a plurality of exhaust holes to exhaust air outwards. Therefore, a gap can be formed between the woven carbon fiber tube and the core rod, and separation is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon fiber tube production and processing, and specifically to a core-pulling machine for processing carbon fiber tubes. Background Art

[0002] Carbon fiber tubes are high-performance composite material tubes, mainly composed of carbon fibers and resin matrices. They have characteristics such as high strength, light weight, and corrosion resistance, and are widely used in many fields. Carbon fiber tubes can be divided into pultruded tubes and wound tubes according to the forming process, and the wound carbon fiber tube is a high-performance composite material tube manufactured by the winding forming process. It is formed by winding carbon fiber prepregs or tows around a mandrel at a specific angle and direction, and then cured by heating. It has excellent properties such as light weight, high strength, and corrosion resistance. According to the production process, it can be divided into wet winding, dry winding, and semi-dry winding. Different methods can be selected during production according to actual usage requirements. However, regardless of any method, a mandrel is required. The carbon fiber is wound around the mandrel, and after it is shaped, the mandrel is removed.

[0003] A core-pulling machine for processing carbon fiber tubes disclosed in the Chinese Utility Model Patent Application Publication Specification CN214605874U still has disadvantages such as single function, inconvenient material replacement, and inconvenient operation during use, as well as the problem that there is no auxiliary separation means during core-pulling, and the core is pulled by tugging, which is likely to damage the carbon fiber tube. Summary of the Invention

[0004] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a core-pulling machine for processing carbon fiber tubes, which has the advantages of multiple functions, good use effect, and convenient operation, and solves the problem that the existing core-pulling machine is likely to damage the end of the carbon fiber during core-pulling.

[0005] (II) Technical Solutions To achieve the object that the existing core-pulling machine is likely to damage the end of carbon fiber during core-pulling, the present invention provides the following technical solutions: It includes a base, a first fixing frame is fixedly connected to the middle of the upper surface of the base, a fixed rotating pipe is rotatably connected inside the first fixing frame, a core rod is movably installed at one end of the fixed rotating pipe, an exhaust hole is opened inside the core rod, a plurality of engaging boxes are arranged inside the core rod in a circumferential array, brackets are fixedly connected to both sides of the plurality of engaging boxes, and both brackets are fixedly connected to the inner wall of the core rod. A plurality of reinforcing beams are fixedly connected inside the plurality of engaging boxes in a circumferential array. The upper and lower ends inside the engaging box are connected with a first movable arm and a second movable arm in a circumferential array. Engaging grooves are opened on the sides of the first movable arm and the second movable arm close to each other. A reversing gear is rotatably connected to the middle inside the engaging box, and the reversing gear is meshed with the first movable arm and the second movable arm at the same time. Limiting holes are opened inside the first movable arm and the second movable arm. Two limiting columns are fixedly connected to the inside of the engaging box, and the two limiting columns are respectively adapted to the two limiting holes. Springs are fixedly sleeved on the outer sides of the two limiting columns. The top end of the first movable arm is fixedly connected with a sealing plug, the bottom end of the second movable arm is rotatably connected with an auxiliary wheel, a first motor is fixedly installed at one end inside the core rod, and the output shaft of the first motor penetrates and is fixedly connected with a turntable, and the turntable is adapted to a plurality of auxiliary wheels at the same time. A toothed disc is rotatably connected to one end inside the fixed rotating pipe, a tapered tooth is opened at one end of the toothed disc, a bevel gear is rotatably connected to the inside of one end of the fixed rotating pipe, and the bevel gear is meshed with the tapered tooth. A flat spiral tooth is fixedly connected to the other end of the toothed disc. A plurality of clamping bolts are movably installed at the end of the fixed rotating pipe in a circumferential array, and the plurality of clamping bolts are threadedly connected with the flat spiral tooth at the same time. A plurality of clamping grooves are opened at one end of the core rod in a circumferential array, and the plurality of clamping grooves are adapted to the plurality of clamping bolts.

[0006] Preferably, the number of the exhaust holes is multiple, the multiple exhaust holes are arranged in a circumferential array and are distributed in the horizontal direction.

[0007] Preferably, the top end of the sealing plug is made of rubber material, and the auxiliary wheel is made of stainless steel material.

[0008] Preferably, a clamping hole is provided at the top end of the bevel gear, and the clamping hole is adapted to a wrench.

[0009] Preferably, a ventilation groove is opened at one end of the fixed rotating pipe, a sealing ring is rotatably connected to the outside of the opening end of the ventilation groove, a conduit is fixedly connected to the lower end of the sealing ring, and the conduit is a rubber hose.

[0010] Preferably, an air pump is fixedly installed at the lower end inside the first fixing frame. The air outlet end of the air pump is fixedly connected to a conduit. A plurality of pulleys distributed in an annular array are rotatably connected inside the first fixing frame, and the plurality of pulleys are adapted to a fixed rotating pipe.

[0011] Preferably, the other end of the upper surface of the base is fixedly connected to a second fixing frame, and an internal spiral pulley is rotatably connected to the inner side of the upper end of the second fixing frame.

[0012] Preferably, one end of the fixed rotating pipe is fixedly connected to a screw rod, and the other end of the screw rod penetrates and is threadedly connected to the internal spiral pulley.

[0013] Preferably, a second motor is fixedly installed at the lower end inside the second fixing frame. One end of the output shaft of the second motor is fixedly connected to a driving wheel, and a transmission belt is connected in a transmission manner between the driving wheel and the internal spiral pulley.

[0014] (III) Beneficial effects Compared with the prior art, the present invention provides a core-pulling machine for processing carbon fiber tubes, which has the following beneficial effects: 1. For the core-pulling machine for processing carbon fiber tubes, the first motor can drive the turntable to rotate. By using the rotating turntable, multiple auxiliary wheels can be sequentially cooperated to realize the movement of the second movable arm. The reversing gear can be used to make multiple sealing plugs cooperate with the sealing plugs in sequence to realize opening and closing. The air pump can be used to exhaust air from multiple exhaust holes, so that a gap can be generated between the woven carbon fiber tube and the core rod, which is more convenient for separation.

[0015] 2. For the core-pulling machine for processing carbon fiber tubes, the rotating bevel gear can drive the toothed disc to rotate in a meshing manner. By using the rotating toothed disc, multiple clamping bolts can be moved simultaneously. The clamping groove can be used to realize the connection between the fixed rotating pipe and the core rod, and thus it is convenient to replace the core rod during use.

[0016] 3. For the core-pulling machine for processing carbon fiber tubes, the second motor can drive the driving wheel to drive the internal spiral pulley to rotate via the transmission belt. Through the threaded adaptation between the internal spiral pulley and the screw rod, the displacement of the screw rod can be realized. Further, the fixed rotating pipe and the core rod at its end can be pulled by the screw rod to move, so that the core rod and the carbon fiber tube on its outer surface can be separated, and thus core-pulling is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of the structure of a core-pulling machine for processing carbon fiber tubes proposed by the present invention; Figure 2 is a sectional schematic diagram of the structure of a core-pulling machine for processing carbon fiber tubes proposed by the present invention; Figure 3The first sectional view schematic diagram of a core-pulling machine mandrel structure for processing carbon fiber tubes proposed by the present invention; Figure 4 The sectional view schematic diagram of a meshing box structure of a core-pulling machine for processing carbon fiber tubes proposed by the present invention; Figure 5 The sectional view schematic diagram of a fixed rotating tube structure of a core-pulling machine for processing carbon fiber tubes proposed by the present invention; Figure 6 The connection schematic diagram of a gear disc and a bevel gear of a core-pulling machine for processing carbon fiber tubes proposed by the present invention; Figure 7 The schematic diagram of a gear disc structure of a core-pulling machine for processing carbon fiber tubes proposed by the present invention; Figure 8 The second sectional view schematic diagram of a core-pulling machine mandrel structure for processing carbon fiber tubes proposed by the present invention; Figure 9 A core-pulling machine for processing carbon fiber tubes proposed by the present invention Figure 2 The enlarged schematic diagram of the structure in area A in; Figure 10 A core-pulling machine for processing carbon fiber tubes proposed by the present invention Figure 2 The enlarged schematic diagram of the structure in area B in.

[0018] In the figure: 1. Base; 2. First fixing frame; 3. Fixed rotating tube; 4. Mandrel; 5. Exhaust hole; 6. Support; 7. Meshing box; 8. Reinforcing beam; 9. First movable arm; 10. Second movable arm; 11. Limiting hole; 12. Limiting post; 13. Spring; 14. Reversing gear; 15. Sealing plug; 16. Auxiliary wheel; 17. First motor; 18. Turntable; 19. Gear disc; 20. Tapered tooth; 21. Bevel gear; 22. Flat spiral tooth; 23. Clamping bolt; 24. Clamping groove; 25. Venting groove; 26. Sealing ring; 27. Duct; 28. Air pump; 29. Pulley; 30. Second fixing frame; 31. Internal spiral wheel; 32. Second motor; 33. Driving wheel; 34. Transmission belt; 35. Screw. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1-10, including a base 1. In the middle of the upper surface of the base 1, a first fixing frame 2 is fixedly connected. Inside the first fixing frame 2, a fixed rotating pipe 3 is rotatably connected. At one end of the fixed rotating pipe 3, a core rod 4 is movably installed. Inside the core rod 4, exhaust holes 5 are provided. The number of exhaust holes 5 is multiple, and the multiple exhaust holes 5 are distributed in an annular array and are distributed horizontally. Inside the core rod 4, multiple engaging boxes 7 are provided and are distributed in an annular array. On both sides of the multiple engaging boxes 7, brackets 6 are fixedly connected, and both brackets 6 are fixedly connected to the inner wall of the core rod 4. Inside the multiple engaging boxes 7, multiple reinforcing beams 8 are fixedly connected and are distributed in an annular array. At the upper and lower ends inside the engaging box 7, a first movable arm 9 and a second movable arm 10 are connected in an annular array. On the side where the first movable arm 9 and the second movable arm 10 are close to each other, engaging grooves are provided. In the middle of the inside of the engaging box 7, a reversing gear 14 is rotatably connected. The reversing gear 14 is simultaneously engaged with the first movable arm 9 and the second movable arm 10. Inside the first movable arm 9 and the second movable arm 10, limiting holes 11 are provided. Inside the engaging box 7, two limiting columns 12 are fixedly connected. The two limiting columns 12 are respectively adapted to the two limiting holes 11. On the outer sides of the two limiting columns 12, springs 13 are fixedly sleeved. The top end of the first movable arm 9 is fixedly connected with a sealing plug 15. The top end of the sealing plug 15 is made of rubber material. The bottom end of the second movable arm 10 is rotatably connected with an auxiliary wheel 16. The auxiliary wheel 16 is made of stainless steel material. At one end inside the core rod 4, a first motor 17 is fixedly installed. The output shaft of the first motor 17 penetrates and is fixedly connected with a turntable 18. The turntable 18 is simultaneously adapted to the multiple auxiliary wheels 16. At one end inside the fixed rotating pipe 3, a toothed disc 19 is rotatably connected. At one end of the toothed disc 19, a conical tooth 20 is provided. Inside one end of the fixed rotating pipe 3, a bevel gear 21 is rotatably connected. At the top of the bevel gear 21, a clamping hole is provided. The clamping hole is adapted to a wrench. The bevel gear 21 is engaged with the conical tooth 20. At the other end of the toothed disc 19, a flat spiral tooth 22 is fixedly connected. At the end of the fixed rotating pipe 3, multiple clamping bolts 23 are movably installed and are distributed in an annular array. The multiple clamping bolts 23 are simultaneously threadedly connected with the flat spiral tooth 22. At one end of the core rod 4, multiple clamping grooves 24 are provided and are distributed in an annular array. The multiple clamping grooves 24 are adapted to the multiple clamping bolts 23. At one end of the fixed rotating pipe 3, a ventilation groove 25 is provided. Outside the opening end of the ventilation groove 25, a sealing ring 26 is rotatably connected. The lower end of the sealing ring 26 is fixedly connected with a conduit 27. The conduit 27 is a rubber hose. At the lower end inside the first fixing frame 2, an air pump 28 is fixedly installed. The air outlet end of the air pump 28 is fixedly connected with the conduit 27. Inside the first fixing frame 2, multiple pulleys 29 are rotatably connected and are distributed in an annular array. The multiple pulleys 29 are adapted to the fixed rotating pipe 3. At the other end of the upper surface of the base 1, a second fixing frame 30 is fixedly connected. Inside the upper end of the second fixing frame 30, an internal spiral wheel 31 is rotatably connected. One end of the fixed rotating pipe 3 is fixedly connected with a screw rod 35. The other end of the screw rod 35 penetrates and is threadedly connected with the internal spiral wheel 31.A second motor 32 is fixedly installed at the lower end of the inner side of the second fixing frame 30. One end of the output shaft of the second motor 32 is fixedly connected with a driving wheel 33, and a transmission belt 34 is connected between the driving wheel 33 and the internal spiral wheel 31.

[0021] All the electrical components mentioned in this article are electrically connected to the external main controller and 220V mains electricity, and the main controller can be a conventional known device such as a computer for control.

[0022] During use, the first motor 17 can drive the turntable 18 to rotate. By using the rotating turntable 18, multiple auxiliary wheels 16 can be sequentially cooperated to realize the movement of the second movable arm 10. Cooperating with the reversing gear 14, multiple sealing plugs 15 can be sequentially cooperated with the sealing plugs 15 to realize opening and closing. Matching with the air pump 28, multiple exhaust holes 5 can be used to exhaust air outwards, so that a gap can be generated between the woven carbon fiber tube and the core rod 4, which is more convenient for separation. By rotating the bevel gear 21, the toothed disk 19 can be driven to rotate in a meshing manner. By rotating the toothed disk 19, multiple clamping bolts 23 can be moved simultaneously. Cooperating with the clamping groove 24, the connection between the fixed rotating tube 3 and the core rod 4 can be realized, and thus it is convenient to replace the core rod 4 during use. By the second motor 32, the driving wheel 33 can be driven to drive the internal spiral wheel 31 to rotate via the transmission belt 34. Through the thread fit between the internal spiral wheel 31 and the screw rod 35, the displacement of the screw rod 35 can be realized, and then the fixed rotating tube 3 and the core rod 4 at its end can be pulled to move through the screw rod 35, so that the core rod 4 can be separated from the carbon fiber tube on its outer surface, and thus core pulling is realized.

[0023] In summary, for the core-pulling machine used for processing carbon fiber tubes, before use, the clamping groove 24 at the end of the core rod 4 with carbon fiber wound around its outer surface needs to be adapted to and clamped with the clamping bolt 23. At this time, by rotating the bevel gear 21, the toothed disc 19 can be driven to rotate. In this way, while the toothed disc 19 drives the flat spiral teeth 22 to rotate, multiple clamping bolts 23 can be moved. Cooperating with the toothed disc 19, multiple clamping bolts 23 can approach or move away from each other simultaneously during movement. Cooperating with the clamping groove 24, the splicing of the core rod 4 and the fixed rotating tube 3 can be achieved. The air pump 28 can inject air into the fixed rotating tube 3 through the conduit 27. The first motor 17 can drive multiple turntables 18 to rotate. The rotating turntables 18 can alternately cooperate with multiple auxiliary wheels 16. Thus, when the second movable arm 10 moves towards the end away from the auxiliary wheels 16, the contraction of the toothed disc 19 can be achieved when cooperating with the reversing gear 14. By adapting the limiting column 12 to the limiting hole 11 and the spring 13, the movement of the first movable arm 9 and the second movable arm 10 can be more stable. In this way, when the second movable arm 10 moves, the first movable arm 9 can move synchronously and in the opposite direction, thereby driving the sealing plug 15 to separate from the exhaust hole 5 alternately. In this way, the air inside the core rod 4 can be discharged outward through the exhaust hole 5, so that a gap can be generated between the carbon fiber tube and the core rod 4. At the same time, the second motor 32 can drive the driving wheel 33 to rotate. The transmission belt 34 can be used for transmission, thereby driving the internal spiral rotating wheel 31 to rotate. Furthermore, the telescopic movement of the screw rod 35 can be achieved, and then the fixed rotating tube 3 can be driven to move. Thus, the core rod 4 can be drawn out from the inside of the carbon fiber tube by using the movable fixed rotating tube 3, thereby realizing core-pulling.

[0024] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one" does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A core pulling machine for processing carbon fiber tubes, comprising a base (1), characterized in that: A first fixed frame (2) is fixedly connected to the middle of the upper surface of the base (1); a fixed rotating tube (3) is rotatably connected to the inner side of the first fixed frame (2); a core rod (4) is movably mounted on one end of the fixed rotating tube (3); an exhaust hole (5) is provided on the inner side of the core rod (4); a plurality of meshing boxes (7) distributed in a ring array are provided on the inner side of the core rod (4); brackets (6) are fixedly connected to both sides of the plurality of meshing boxes (7); two brackets (6) are fixedly connected to the inner wall of the core rod (4); a plurality of reinforcing beams (8) distributed in a ring array are fixedly connected to the inner sides of the plurality of meshing boxes (7); The first movable arm (9) and the second movable arm (10) are connected to the upper and lower ends of the inner side of the meshing box (7) in a circular array. The first movable arm (9) and the second movable arm (10) are provided with a meshing groove on one side close to each other. A reversing gear (14) is rotatably connected to the middle part of the inner side of the meshing box (7). The reversing gear (14) is meshed with the first movable arm (9) and the second movable arm (10) at the same time. The inner sides of the first movable arm (9) and the second movable arm (10) are provided with limiting holes (11). The inner side of the meshing box (7) is fixedly connected with two limiting posts (12). The two limiting posts (12) are provided with a plurality of holes. 12) are respectively matched with the two limiting holes (11), the outer sides of the two limiting columns (12) are fixedly sleeved with springs (13), the top end of the first movable arm (9) is fixedly connected with a sealing plug (15), the bottom end of the second movable arm (10) is rotatably connected with an auxiliary wheel (16), the inner end of the core rod (4) is fixedly installed with a first motor (17), the output shaft of the first motor (17) passes through and is fixedly connected with a rotating disk (18), the rotating disk (18) is matched with multiple auxiliary wheels (16) at the same time, the inner end of the fixed rotating tube (3) is rotatably connected with a toothed disk (19), the toothed disk (1 9) is provided with a conical tooth (20), one end of the fixed rotating tube (3) is rotatably connected to a bevel gear (21) on the inner side, the bevel gear (21) is meshed with the conical tooth (20), the other end of the toothed disc (19) is fixedly connected to a flat spiral tooth (22), the end of the fixed rotating tube (3) is movably provided with a plurality of clamping bolts (23) distributed in an annular array, the plurality of clamping bolts (23) are simultaneously threadedly connected to the flat spiral tooth (22), and one end of the core rod (4) is provided with a plurality of clamping grooves (24) distributed in an annular array, the plurality of clamping grooves (24) are adapted to the plurality of clamping bolts (23).

2. A core pulling machine for processing carbon fiber tubes according to claim 1, characterized in that: The exhaust holes (5) are multiple in number, and the multiple exhaust holes (5) are distributed in a ring array and in a horizontal direction.

3. A core pulling machine for processing carbon fiber tubes according to claim 1, characterized in that: The top end of the sealing plug (15) is made of rubber material, and the auxiliary wheel (16) is made of stainless steel material.

4. A core pulling machine for processing carbon fiber tubes according to claim 1, characterized in that: A clamping hole is provided at the top end of the bevel gear (21), and the clamping hole is adapted to fit a wrench.

5. The core pulling machine for processing carbon fiber tubes according to claim 1, characterized in that: A ventilation groove (25) is provided at one end of the fixed rotating tube (3), a sealing ring (26) is rotatably connected to the outer side of the open end of the ventilation groove (25), and a conduit (27) is fixedly connected to the lower end of the sealing ring (26), and the conduit (27) is a rubber hose.

6. A core pulling machine for processing carbon fiber tubes according to claim 1, characterized in that: An air pump (28) is fixedly mounted on the lower inner end of the first fixed frame (2), and an air outlet end of the air pump (28) is fixedly connected to the guide tube (27). A plurality of pulleys (29) distributed in a ring array are rotatably connected to the inner side of the first fixed frame (2), and the plurality of pulleys (29) are adapted to the fixed rotating tube (3).

7. The core pulling machine for processing carbon fiber tubes according to claim 1, characterized in that: The other end of the upper surface of the base (1) is fixedly connected to a second fixing frame (30), and the inner side of the upper end of the second fixing frame (30) is rotatably connected to an inner spiral rotating wheel (31).

8. A core pulling machine for processing carbon fiber tubes according to claim 7, characterized in that: One end of the fixed rotating tube (3) is fixedly connected to a screw rod (35), and the other end of the screw rod (35) penetrates and is threadedly connected to the inner spiral rotating wheel (31).

9. The core pulling machine for processing carbon fiber tubes according to claim 7, characterized in that: A second motor (32) is fixedly mounted on the inner lower end of the second fixed frame (30); one end of the output shaft of the second motor (32) is fixedly connected to a driving wheel (33); a transmission belt (34) is transmission-connected between the driving wheel (33) and the inner spiral rotating wheel (31).

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