Saw tooth type needle-free electrostatic spinning device

Abstract

The invention discloses a saw tooth type needle-free electrostatic spinning device, which comprises a liquid supply system, a spinning system, a power supply system, a receiving system, a transmission system and a control system. The device is characterized in that the spinning system comprises a spinning manifold body, a spinning component and a center shaft; the exterior of the spinning manifold body has a horizontal cuboidal shape, and a horizontal cylindrical cavity is formed in the spinning manifold body; a main body of the center shaft is arranged in the cavity, and the two ends of the center shaft extend from the spinning manifold body, and are connected with the transmission system; the spinning component has an axially continuous or parallel thin rack structure, and points of a rack are outwards arranged on the center shaft, and can be driven by the center shaft to rotate; distances of 1 to 3mm are reserved between the points and the inner wall of the spinning manifold body; a liquid inlet pipe orifice of the spinning manifold body is communicated with a spinning metering pump of the liquid supply system, and an overflow port of the spinning manifold body is connected to a liquid storage device of the liquid supply system through a pipe, and is reserved between the bottom of the spinning component and the center shaft; and rectangular spinning openings are reserved in positions opposite to the highest parts of the spinning component on the upper surface of the spinning manifold body.

Description

technical field [0001] The invention relates to electrostatic spinning technology, in particular to a zigzag type needle-free electrostatic spinning device. Background technique [0002] Electrospinning technology is a technology that uses electrostatic field force to produce nanofiber materials, which has been widely studied at home and abroad in recent years. The main process principle is: under the action of a high-voltage electrostatic field, the pendant small droplet at the capillary mouth emits a fine jet from the top under the action of electrostatic force. When the jet is flying to the receiving device, the solvent volatilizes and solidifies into fibers. Electrospinning technology is divided into two categories: needle-type and needle-free. Multi-needle or multi-nozzle electrospinning technology is a method of electrospinning using capillary tubes, which is considered to be an effective method to achieve large-scale production of nanofiber materials. A representati...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a sawtooth type needle-free electrospinning device, which can greatly increase the output of nanofiber products and product Uniformity, and avoid the electrostatic interference (“End effect” phenomenon), needle blockage and inconvenient cleaning in the traditional needle-type electrospinning process; compared with the existing roller-type needle-free electrospinning technology, the electrostatic spinning technology of the present invention The spinning device requires low voltage, which effectively improves the energy utilization rate. It has the characteristics of simple structure, easy industrial implementation, and wide application range.

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