Rope-driven large continuous carbon fiber structural member 3D printing device

Abstract

The utility model provides a rope-driven large continuous carbon fiber structural member 3D printing device which comprises a 3D printing device body. A plurality of servo motors are installed on an aluminum profile frame to form a four-degree-of-freedom parallel rope type 3D printing device body. The output port of the servo motor is provided with a winding drum and a steel wire rope; the steel wire rope penetrates through the universal pulley and is connected with the required 3D printing head, and the movement track of the printing head can be accurately controlled by controlling winding and unwinding of the rope. Meanwhile, in order to improve the 3D printing quality, a balancing weight is designed on the 3D printing head, and the defect that the printing quality is low due to the fact that large upward jacking force is formed on the printing head during continuous carbon fiber printing is overcome. According to the structural characteristics of the large 3D structural component, the track of the 3D printing head is optimized through an algorithm, the track of the printing head is accurately controlled by controlling the rope to be wound and unwound, and therefore precise additive forming of the large 3D structural component is achieved. The device has the characteristics of simple structure, low manufacturing cost, convenience in installation and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of additive manufacturing, in particular to a rope drive type large-scale continuous carbon fiber structural member 3D printing device. BACKGROUND

[0002] With the progress and development of China's science and technology 3D printing equipment has application in industry and even in life, but these 3D printing use scene is only in small structural parts or appearance production. Cannot produce large-scale structural appearance, such as the appearance required by automobile design, and some product models and sculptures etc. The existing multi-joint degree of freedom mechanical arm type large-scale structural 3D printing device has the problem of high cost.

[0003] In view of the above problem, a rope drive type large-scale continuous carbon fiber structural member 3D printing device is provided, which uses the characteristics of servo motor traction rope, has the characteristics of low cost, simple installation and simple structure. Can make up for the shortcomings of the existing FDM printer. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a rope drive type large-scale continuous carbon fiber structural member 3D printing device, which can effectively adapt to the 3D printing forming of large-scale continuous carbon fiber structural members.

[0005] In order to solve the above technical problems, the utility model provides a rope drive type large-scale continuous carbon fiber structural member 3D printing device, including motor support assembly, motion control assembly, 3D printing assembly, electric control platform and execution component, the output of electric control platform and the input of motion control assembly, the input of execution component are electrically connected, the output of motion control assembly and the input of execution component are electrically connected;

[0006] The 3D printing assembly includes a feed pipe, a 3D printing head, a winch and a counterweight. The feed pipe is connected to the 3D printing head under the drive of the winch. The counterweight is connected to the 3D printing head to provide a downward pressure for the 3D printing head and balance the upward thrust force of the continuous carbon fiber on the printing head during printing.

[0007] The motor support assembly comprises a first cross beam, a second cross beam, a third cross beam, a fourth cross beam, a first cable, a second cable, a third cable and a fourth cable; the execution assembly comprises a first motor, a second motor, a third motor and a fourth motor; the first motor is fixed to one end of the first cross beam close to the fourth cross beam, the second motor is fixed to one end of the second cross beam close to the first cross beam, the third motor is fixed to one end of the third cross beam close to the second cross beam, and the fourth motor is fixed to one end of the fourth cross beam close to the third cross beam; the first cable is connected with the 3D printing head through the first pulley, the second cable is connected with the 3D printing head through the second pulley, the third cable is connected with the 3D printing head through the third pulley, and the fourth cable is connected with the 3D printing head through the fourth pulley;

[0008] The motors drive different cables to be reeled in or out, and the different cables pull the 3D printing head to move in different directions; the winch provides a pulling force for the material conveying pipe to avoid the material conveying pipe from interfering with the movement of the 3D printing head;

[0009] The motion control assembly controls the execution assembly to drive the 3D printing assembly to realize predetermined operation steps by executing a computer program stored in the motion control assembly.

[0010] In a preferred embodiment, the motion control assembly acquires operation instruction signals pre-encoded in a computer; after the signals are received, the motion control assembly decodes and processes the signals to generate executable control instructions.

[0011] In a preferred embodiment, after the control instructions are processed, an established and optimized mechanism kinematics model is called; the control instructions are combined with specific position information, and the mechanism kinematics model is converted to generate a rotation speed control signal of a servo motor.

[0012] In a preferred embodiment, the generated rotation speed control signal is transmitted to each motor in the execution assembly to promote corresponding rotation operations of the motors and drive the 3D printing head to move along a planned trajectory in a three-dimensional space.

[0013] In a preferred embodiment, the motion control assembly continuously acquires the running state of the execution assembly, including the operation of each motor and the printing progress, generates real-time execution results, and feeds back the results to the computer system.

[0014] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0015] The utility model provides a kind of large-scale continuous carbon fiber structural member 3D printing device of rope drive type, with low cost, easy to install, simple structure and other characteristics, and this system uses modular design and assembly, more easily expand the function, compared with the printing device of large-scale continuous carbon fiber structural member of multi-joint multi-degree-of-freedom mechanical arm type, the device proposed by the utility model is more suitable for more complex working condition and environment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure diagram of preferred embodiment of the utility model;

[0017] Figure 2 It is the schematic diagram of 3D component in preferred embodiment of the utility model.

[0018] Figure 3 It is system flow chart in preferred embodiment of the utility model. DETAILED DESCRIPTION

[0019] In order to make the technical scheme and characteristics of the utility model more clear, the utility model is further explained in detail in the following with the drawings and specific examples, and it should be understood that these examples are only used to illustrate the utility model and not used to limit the scope of the utility model, after reading the utility model, the modification of various equivalent forms of the utility model by the person skilled in the art falls within the range defined by the claims attached to the present application.

[0020] As Figure 1 Indicated, a kind of large-scale continuous carbon fiber structural member 3D printing device of rope drive type. Including cuboid aluminium profile frame as motor support component, other motor support components can also be used, for example but not limited to tree pole, wall and vertical pole etc., still include execution component, pulley mechanism, 3D printing component;

[0021] The rectangular aluminum profile frame is mainly responsible for supporting the 3D printing device main body, and the rectangular aluminum profile support includes the structural assembly, including a first cross beam 1, a second cross beam 2, a third cross beam 3, a fourth cross beam 4, a first steel cable 5, a second steel cable 6, a third steel cable 7, and a fourth steel cable 8. The execution assembly includes a first motor 9, a second motor 10, a third motor 11, and a fourth motor 12. The first motor 9 is fixed to the first cross beam 1 near one end of the fourth cross beam 4, the second motor 10 is fixed to the second cross beam 2 near one end of the first cross beam 1, the third motor 11 is fixed to the third cross beam 3 near one end of the second cross beam 2, and the fourth motor 12 is fixed to the fourth cross beam 4 near one end of the third cross beam 3. The first steel cable 5 is connected to the 3D printing head through the first pulley, the second steel cable 6 is connected to the 3D printing head through the second pulley, the third steel cable 7 is connected to the 3D printing head through the third pulley, and the fourth steel cable 8 is connected to the 3D printing head through the fourth pulley;

[0022] The 3D printing assembly includes a feed pipe 14, a 3D printing head 13, a winch 15, and a counterweight 16. The feed pipe 14 is connected to the 3D printing head 13 under the drive of the winch 15. The counterweight 16 is connected to the 3D printing head 13 to provide a downward pressure for the 3D printing head 13 and balance the upward force of the continuous carbon fiber on the 3D printing head during printing. After adopting the above structure, different motors drive the corresponding steel cables to be retracted or extended during 3D printing, and different steel cables pull the 3D printing head 13 to move in different directions. The movement of the 3D printing head 13 in various directions can be controlled by retracting or extending the steel cables, and the winch 15 provides appropriate tension to the feed pipe 14 to prevent the feed pipe 14 from interfering with the movement of the 3D printing head 13.

[0023] The motion control assembly realizes a series of operation steps by executing the computer program stored therein:

[0024] The motion assembly obtains operation instruction signals previously encoded in the computer. After receiving these signals, the assembly decodes the signals to generate executable control instructions. After processing, these control instructions will call the established and optimized mechanism kinematic model. In this process, the control instructions are combined with specific position information, and the model is converted to generate a servo motor speed control signal.

[0025] The generated speed control signal is transmitted to the servo motor in the execution assembly to cause it to perform corresponding rotation operations, drive the 3D printing head 13 on the end effector, and achieve precise movement in three-dimensional space to complete complex printing tasks.

[0026] The motion control component continuously acquires the operating status of the execution component, including the operation of the servo motor and the progress of the printing structure. Through these monitoring data, the motion control component generates real-time execution results and feeds back the results to the computer system. This feedback mechanism ensures the efficiency and accuracy of the entire 3D printing process, while allowing dynamic adjustments when necessary to address any deviations or problems that may arise.

[0027] In summary, the innovative solution proposed in this case - a large-scale continuous carbon fiber structure 3D printing device driven by a rope - not only successfully realizes the precise manufacturing of large-scale structures, but also greatly expands the application boundaries of 3D printing technology due to its convenient assembly and disassembly characteristics. This revolutionary solution directly responds to and overcomes the limitations of traditional FDM (Fused Deposition Modeling) printers when dealing with large-scale objects, opening up a new path for the socialization and industrialization of 3D printing technology. By optimizing the mobility and adaptability of the equipment, we not only improve the printing efficiency and installation convenience, but also reduce the complexity of large-scale project operations, thereby promoting 3D printing technology to enter a more mature and widely applied new stage.

[0028] The above is only one specific embodiment of the present application, but the design concept of the present application is not limited to this. Any non-essential modification of the present application using this concept is an act of infringing the protection scope of the present application.

Claims

1. A rope-driven 3D printing device for large continuous carbon fiber structural components, comprising a motor support assembly, a motion control assembly, a 3D printing assembly, an electronic control console, and an execution assembly; characterized in that: The output terminal of the electronic control console is electrically connected to the input terminal of the motion control component and the input terminal of the execution component; the output terminal of the motion control component is electrically connected to the input terminal of the execution component. The 3D printing component includes a feed tube, a 3D printing head, a winch, and a counterweight. The feed tube is connected to the 3D printing head by the winch. The counterweight is connected to the 3D printing head to provide downward pressure to the 3D printing head and balance the large upward force exerted on the printing head by the continuous carbon fibers during printing. The motor support assembly includes a first crossbeam, a second crossbeam, a third crossbeam, a fourth crossbeam, a first steel cable, a second steel cable, a third steel cable, and a fourth steel cable; the execution assembly includes a first motor, a second motor, a third motor, and a fourth motor; the first motor is fixed to one end of the first crossbeam near the fourth crossbeam, the second motor is fixed to one end of the second crossbeam near the first crossbeam, the third motor is fixed to one end of the third crossbeam near the second crossbeam, and the fourth motor is fixed to one end of the fourth crossbeam near the third crossbeam; the first steel cable is connected to the 3D printing head via a first pulley, the second steel cable is connected to the 3D printing head via a second pulley, the third steel cable is connected to the 3D printing head via a third pulley, and the fourth steel cable is connected to the 3D printing head via a fourth pulley; The motor drives the winding and unwinding of different steel cables, which in turn pull the 3D printing head to move in different directions. By winding and unwinding different steel cables, the movement of the printing head in various directions is controlled. The winch provides tension to the feed tube to prevent the feed tube from interfering with the movement of the 3D printing head. The motion control component controls the execution component to drive the 3D printing component to perform predetermined operation steps by executing a computer program stored within it.

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