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A kind of preparation method of thin film bending actuator
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A technology of actuators and thin films, applied in chemical instruments and methods, mechanisms for generating mechanical power, mechanical equipment, etc., can solve problems such as low efficiency, and achieve the effects of reducing labor costs, high efficiency, and low cost
Active Publication Date: 2022-07-05
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology
[0002] In recent years, the field of soft robots has developed rapidly, and the technology has gradually matured. Among them, the representative soft actuators have received widespread attention and gradually entered into practical applications, such as pneumatic grippers, artificial muscles, etc., but the current manufacturing processes are mostly limited to Mold casting, 3D printing, etc., but if mass production is required, these methods have low efficiency
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preparation example Construction
[0035] The main part of the preparation method of the bending actuator is integrated into the roll-to-roll equipment and automatically processed.
[0036] like figure 1 As shown, the preparation method may include the following four steps:
[0037] In the first step, the conductive metal layer is patterned by the lower film through the patterning mechanism,
[0038] In the second step, the patterned conductive metal layer connects the leads,
[0039] In the third step, the upper and lower layers of films are laminated to form a laminated film and heat-sealed is completed.
[0040] In the fourth step, the cutting mechanism cuts the laminated film to obtain a finished product of the film bending actuator.
[0041] The finished film bending actuator can be filled with low boiling point liquid and sealed in the film before use.
[0042] Based on the above preparation method, batch preparation of electrically actuated thin-film bending actuators can be realized. A cavity is fo...
Embodiment 1
[0049] Example 1: Electrically Actuated Thin Film Bending Actuator
[0050] Based on the finished film bending actuator 21 obtained in the above steps, before use, a certain amount of low-boiling liquid can be injected through the flow channel 18 reserved at one end of the film bending actuator with the aid of a syringe, and the external flow channel 18 can be sealed to complete the preparation Work. If the flow channel 18 is provided with a one-way check valve, it does not need to be sealed (the setting of the one-way check valve is completed in the heat sealing stage). The boiling point of the low-boiling liquid does not exceed 100°C, for example, it can be ethanol or diethyl ether.
[0051] When driving, it is necessary to energize both ends of the lead 19, for example, the energization voltage can be 3V. The patterned conductive metal layer 17 converts electrical energy into thermal energy, and the low-boiling liquid filled in the cavity 20 is heated and partially vapori...
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Abstract
The invention belongs to the field of soft actuator preparation, and discloses a preparation method of a thin film bending actuator. The preparation method comprises the following steps: (1) patterning a conductive metal layer of a lower layer thin film to form surface resistance; (2) from Lead wires from the end of the surface resistance; (3) Laminate and heat seal the upper film and the lower film at a preselected position to form a cavity to obtain a heat sealing film; (4) Cut the film at the preselected position Preparation of finished products. When in use, the wire is energized to make the surface resistance exothermic to expand the vaporized volume of the low-boiling point liquid to realize the function of the thin-film bending actuator. The invention proposes a complete batch preparation process for the thin-film bending actuator, and has the advantages of low cost and high efficiency. The obtained thin-film bending actuator has the characteristics of thinness and light weight, which is especially suitable for wearable devices and has good application prospects.
Description
technical field [0001] The invention belongs to the field of preparation of soft actuators, and more particularly relates to a preparation method of a thin film bending actuator. Background technique [0002] In recent years, the field of soft robotics has developed rapidly, and the technology has gradually matured. Among them, the representative soft actuators have received extensive attention and have gradually entered practical applications, such as pneumatic grippers, artificial muscles, etc. The current manufacturing process is mostly limited to Mold casting, 3D printing, etc., but if mass production is required, such methods have inefficiencies. [0003] Therefore, the development of a set of high-efficiency, large-scale soft actuator preparation methods is of great help to its further research and application. [0004] Thin-film bending actuators, as one of the emerging soft actuators, have the characteristics of lightness and thinness, and are especially suitable fo...
Claims
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