Ultrasonic cutting device for carbon fibers
By utilizing ultrasonic vibration and rotational motion, the problems of high pressure and wear in traditional fiber cutting are solved by ultrasonic cutting devices, achieving efficient and precise carbon fiber cutting.
Patent Information
- Application Number
- CN202422933608.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Traditional fiber cutting mechanisms, when using rotary cutting, suffer from problems such as high cutting pressure leading to fiber deformation at the ends, severe wear of the cutting equipment, and high heat dissipation requirements.
An ultrasonic cutting device is used, which generates ultrasonic vibrations of tens of thousands of hertz through an ultrasonic transducer. Combined with rotational motion, this achieves high-speed vibration of the cutting blade, reducing friction and heat, and improving cutting accuracy and speed.
It achieves high-frequency vibration instead of high cutting pressure, resulting in fast cutting speed, high precision, fine and traceless cutting lines, minimal deformation of the prepreg tape, clean cuts, extended cutting blade life, and reduced cutting defects.
Smart Images
Figure CN223749716U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of ultrasonic, in particular to a kind of ultrasonic cutting device for carbon fiber. BACKGROUND
[0002] Fiber has the advantages of light mass, high strength, high modulus, structural function integration and design and manufacture integration, easy to be formed into large components, etc., and fiber has excellent properties of high strength, high modulus, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electrical conductivity, heat conduction, small specific gravity and small thermal expansion coefficient, and fiber has been widely used in aviation, missiles, rockets, aircraft and other fields.
[0003] Traditional fiber cutting mechanism generally adopts rotary cutting, and high cutting pressure occurs during rotary cutting, which can cause end fiber deformation, and cutting equipment is dull due to cutting dust adhesion, and a large amount of heat is generated due to friction, so the heat dissipation demand of cutting system is high, and the feed rate is limited by heat dissipation. SUMMARY
[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide an ultrasonic cutting device for carbon fiber, to solve the technical problems existing in the prior art.
[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides an ultrasonic cutting device for carbon fiber, comprising an ultrasonic transducer, a cutting knife and a power device; the ultrasonic transducer comprises an ultrasonic body and a transmitting end; the ultrasonic body has a front end and a rear end arranged oppositely; the front end is connected with the transmitting end, and the working surface of the transmitting end is detachably connected with the cutting knife; the rear end is connected with the power device, and the power device can drive the ultrasonic transducer to rotate; the ultrasonic body is connected with a power supply device for supplying power to the ultrasonic transducer.
[0006] Further, the ultrasonic cutting device further comprises a first cylinder, the ultrasonic transducer is fixedly installed in the first cylinder, and the cutting knife is exposed outside the head of the first cylinder; the power device is detachably connected with the tail of the first cylinder.
[0007] Further, the center line of the length direction of the ultrasonic transducer coincides with the axis of the first cylinder.
[0008] Further, the power supply device is a sliding electrode structure; the sliding electrode structure comprises a sliding electrode and a fixed conductor which is in slidable contact with the sliding electrode; the sliding electrode is fixedly installed on the outer wall of the first cylinder, and the sliding electrode is electrically connected with the ultrasonic body.
[0009] Further, the ultrasonic cutting device further comprises a second barrel; the first barrel is accommodated in the second barrel; the fixed conductor is fixed to the inner wall of the second barrel.
[0010] Further, the power device is an electric motor, and the electric motor is connected to the rear end through a rotating shaft.
[0011] Further, the power device is accommodated in the second barrel; and the power connector of the power device is arranged on the outer wall of the bottom of the second barrel. The power device is connected to the tail of the first barrel.
[0012] Further, the working surface of the emitting end is detachably connected to the cutting knife through a boom.
[0013] Further, the ultrasonic transducer has an ultrasonic frequency range of 15 KHZ-1000 KHZ.
[0014] As described above, the ultrasonic cutting device for carbon fibers has the following beneficial effects:
[0015] Since the power device can drive the ultrasonic transducer to rotate, the power supply device supplies power to the ultrasonic transducer, the ultrasonic transducer is turned on, the ultrasonic body generates ultrasonic vibration with a frequency of tens of thousands of hertz, so that the cutting knife generates high-speed vibration, the amplitude of which is generally tens of microns, high-frequency vibration is used to replace high cutting pressure, the cutting knife performs high-speed vibration and rotation at the same time to perform cutting operation, the friction is small during cutting, the heat generated is small, the cutting speed is fast, the cutting precision is high, the cutting line is thin and traceless, the pre-impregnated tape is less deformed, and the cutting edge is neat. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A schematic view of the ultrasonic cutting device for carbon fibers is shown. DETAILED DESCRIPTION
[0017] The embodiments of the present application are described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.
[0018] It is to be understood that the structure, proportion, size and the like shown in the drawings of the present application are only used to cooperate with the disclosed content, so that those skilled in the art can understand and read, and are not used to limit the implementation of the present application. Therefore, any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose of the present application, should still fall within the scope of the disclosed technology.
[0019] As shown in Figure 1 , the present application provides an ultrasonic cutting device for carbon fiber, comprising an ultrasonic transducer 6, a cutting knife 9 and a power device 3; the ultrasonic transducer 6 comprises an ultrasonic body and a transmitting end; the ultrasonic body has a front end and a rear end arranged oppositely; the front end is connected with the transmitting end, the transmitting end has a working surface and a tail arranged oppositely, the tail of the transmitting end is connected with the front end, and the working surface of the transmitting end is detachably connected with the cutting knife 9; specifically, the working surface of the transmitting end is connected with the cutting knife 9 by a connecting piece 8.
[0020] The rear end is connected with the power device 3, and the power device 3 can drive the ultrasonic transducer 6 to rotate; the ultrasonic body is connected with a power supply device for supplying power to the ultrasonic transducer.
[0021] Referring to Figure 1 , in operation, the power device 3 can drive the ultrasonic transducer 6 to rotate, the power supply device supplies power to the ultrasonic transducer, the ultrasonic transducer is turned on, the ultrasonic body generates ultrasonic vibration with a frequency of tens of thousands of hertz, so that the cutting knife 9 generates high-speed vibration with an amplitude of tens of microns, realizing high-frequency vibration instead of high cutting pressure, so that the cutting knife 9 performs high-speed vibration and rotation operation for cutting work, and the friction is small during cutting, the heat generated is small, so the cutting speed is fast, the cutting precision is high, the cutting line is small and traceless, the prepreg tape is small in deformation, and the cutting is neat.
[0022] Further, the ultrasonic cutting device further comprises a first cylinder 5, the ultrasonic transducer 6 is fixedly installed in the first cylinder 5, and the cutting knife 9 is exposed outside the head of the first cylinder 5; the power device 3 is detachably connected with the tail of the first cylinder 5, as shown in Figure 1 .
[0023] Referring toFigure 1 In operation, the power device 3 drives the first cylinder 5 to rotate, and since the ultrasonic transducer 6 is fixed in the first cylinder 5, the ultrasonic transducer 6 rotates with the first cylinder 5, and the cutting knife 9 rotates to cut. Meanwhile, the power supply device supplies power to the ultrasonic transducer 6, the ultrasonic transducer 6 starts and generates high-frequency vibration, so that the cutting knife 9 generates high-frequency vibration to form cutting force and cut. During cutting, the cutting knife 9 is subjected to small additional pressure and small friction, reducing the wear of the cutting knife 9 and prolonging the service life of the cutting knife 9. Meanwhile, the ultrasonic vibration has little effect on other equipment, thereby reducing the generation of cutting defects and greatly improving the cutting yield.
[0024] Reference Figure 1 In order to improve the balance of the device, preferably, the center line of the length direction of the ultrasonic transducer 6 coincides with the axis of the first cylinder 5. Preferably, the ultrasonic transducer 6 is detachably mounted in the first cylinder 5 through a support (not shown in the figure).
[0025] In this application, the power supply device is a sliding electrode structure 7; the sliding electrode structure 7 includes a sliding electrode and a fixed conductor which is in sliding contact with the sliding electrode; the sliding electrode is fixedly installed on the outer wall of the first cylinder 5, and the sliding electrode is electrically connected with the ultrasonic body. Specifically, the inner ring of the sliding electrode is electrically connected with the ultrasonic body.
[0026] When the power device 3 drives the first cylinder 5 to rotate, the ultrasonic transducer 6 and the sliding electrode rotate with the first cylinder 5, and the sliding electrode and the fixed conductor maintain a sliding contact state, thereby realizing continuous and stable power supply to the ultrasonic transducer 6.
[0027] In order to facilitate installation, the ultrasonic cutting device further includes a second cylinder 2; the second cylinder 2 is sleeved on the first cylinder 5; the power supply device is arranged between the second cylinder 2 and the first cylinder 5; specifically, the fixed conductor is fixed on the inner wall of the second cylinder 2. The sliding electrode is fixedly installed on the outer wall of the first cylinder 5. The cutting knife 9 is exposed outside the first cylinder 5 and the second cylinder 2. When the power device 3 drives the first cylinder 5 to rotate, the ultrasonic transducer 6 and the sliding electrode rotate with the first cylinder 5, and the fixed conductor and the second cylinder 2 remain stationary. Figure 1 .
[0028] In operation, the power device 3 drives the first cylinder 5 to rotate, and the ultrasonic transducer 6 rotates with the first cylinder 5, and the first cylinder 5 and the second cylinder 2 move relatively, i.e. the first cylinder 5 rotates and the second cylinder 2 remains stationary. The sliding electrode rotates relative to the fixed conductor, and the two achieve relative sliding to generate electricity and realize continuous and stable power supply for the ultrasonic transducer 6.
[0029] The power device 3 is an electric motor, which is connected to the rear end of the ultrasonic body through the rotating shaft 4, or connected to the tail of the first cylinder through the rotating shaft 4. Preferably, the electric motor is connected to the tail of the first cylinder 5 through the rotating shaft 4, and the electric motor drives the first cylinder 5 to rotate, and in turn drives the ultrasonic transducer 6 to rotate with the first cylinder 5. Specifically, the electric motor can be a stepper motor or a servo motor, and the corresponding motor can be selected according to actual needs. In addition, the rotating shaft is not limited to be connected to the rear end for transmission, but a cam, a gear, a pulley, etc. can also be used. As long as it can stably drive the ultrasonic transducer to rotate, and in turn drive the cutting knife 9 to rotate and cut, it is acceptable.
[0030] Further, in order to prevent dust, avoid direct impact on the power device 3, facilitate installation, and make the structure compact, the power device 3 is accommodated in the second cylinder 2, and the power connector 1 of the power device 3 is arranged on the outer wall of the bottom of the second cylinder 2. Specifically, the power connector 1 is a power supply plug, which realizes direct insertion and fast installation. Figure 1 .
[0031] In other embodiments, the working surface of the transmitting end can be detachably connected to the cutting knife 9 through an amplitude-changing rod.
[0032] In this application, the ultrasonic frequency range of the ultrasonic transducer 6 is 15 KHZ-1000 KHZ.
[0033] The ultrasonic body generates ultrasonic wave vibration with a frequency of tens of thousands of hertz, which is amplified through the amplitude-changing rod to make the cutting knife 9 vibrate at high speed, and the amplitude is generally tens of microns. High-frequency vibration replaces high cutting pressure, so the cutting speed is fast, the cutting precision is high, the cutting line is small and traceless, the prepreg tape is less deformed, and the cut is neat.
[0034] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed by the present application should be covered by the claims of the present application.
Claims
1. An ultrasonic cutting device for carbon fibers, characterized by, The ultrasonic cutting device comprises an ultrasonic transducer, a cutting knife and a power device; the ultrasonic transducer comprises an ultrasonic body and a transmitting end; the ultrasonic body has oppositely arranged front and rear ends; the front end is connected with the transmitting end, and the working surface of the transmitting end is detachably connected with the cutting knife; the rear end is connected with the power device, and the power device can drive the ultrasonic transducer to rotate; the ultrasonic transducer is connected with a power supply device for supplying power to the ultrasonic transducer; the ultrasonic cutting device further comprises a first cylinder and a second cylinder; the ultrasonic transducer is fixedly installed in the first cylinder, and the cutting knife is exposed outside the head of the first cylinder; the power device is detachably connected with the tail of the first cylinder; the first cylinder is accommodated in the second cylinder; the power supply device is a sliding electrode structure which is installed between the first cylinder and the second cylinder. When the power device drives the first cylinder to rotate, the ultrasonic transducer rotates in the same direction with the first cylinder, and the second cylinder remains stationary.
2. An ultrasonic cutting device for carbon fibers as defined in claim 1, characterized in that: The center line of the length direction of the ultrasonic transducer coincides with the axis of the first cylinder.
3. An ultrasonic cutting device for carbon fibers as defined in claim 2, characterized in that: The sliding electrode structure comprises a fixed conductive body and a sliding electrode which is in slidable contact with the fixed conductive body; the sliding electrode is fixedly installed on the outer wall of the first cylinder, and the sliding electrode is electrically connected with the ultrasonic body.
4. An ultrasonic cutting device for carbon fibers as defined in claim 3, characterized in that: The fixed conductive body is fixed on the inner wall of the second cylinder.
5. The apparatus for ultrasonic cutting of carbon fibers according to claim 1, wherein: The power device is an electric motor, and the electric motor is connected with the rear end through a rotating shaft.
6. An ultrasonic cutting device for carbon fibers as defined in claim 5, characterized in that: The power device is accommodated in the second cylinder, and the power connector of the power device is arranged on the outer wall of the bottom of the second cylinder; the power device is connected with the tail of the first cylinder.
7. The apparatus of claim 1, wherein: The working surface of the transmitting end is detachably connected with the cutting knife through a variable amplitude rod.
8. The apparatus for ultrasonic cutting of carbon fibers according to claim 1, wherein: The ultrasonic frequency of the ultrasonic transducer ranges from 15 KHZ to 1000 KHZ.