Drawing/forging-integrated instrument for manufacturing glass micro nozzle
A glass micro-integrated technology, applied in glass manufacturing equipment, glass molding, glass reshaping, etc., can solve the problems of complex instrument structure and increased user costs, and achieve simple operation, high precision, and simple structure Effect
Inactive Publication Date: 2014-03-19
NANJING UNIV OF SCI & TECH
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Problems solved by technology
[0003] In order to solve this problem, researchers in many countries have done related research work, such as US6363750B1, US4111677, US4530712 and other patent applications. The micro-nozzle with a relatively small inner diameter can control the geometric shape of the micro-needle by changing the pulling force and other operations. Although the patent US6363750B1 proposes a micro-nozzle manufacturing instrument that can simultaneously draw and forge, the structure of this instrument is complex and increases user cost
Method used
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Embodiment
[0022] Embodiment: The microneedle clamping structure consists of the microneedle upper end holder 2 and the upper screw 4 assembled in the strip-shaped through hole of the back plate 18, the microneedle lower end holder 23 and the lower screw 24 assembled on the slider 28 Composition, V-shaped grooves are processed on the microneedle holder. The needle pulling movement structure is composed of a guide rail 19, a slider 28, a microneedle lower end holder 23 assembled on the slider, and a delay structure 20. The slider 28 is a ball slider that slides along the guide rail 19, It can be purchased from the market. During the microneedle drawing process, the sliding block 28 and the microneedle lower end holder 23 assembled thereon, and the counterweight 21 (metal counterweight) provide pulling force. The counterweight 21 (metal counterweight) Counterweights) constitute the tension adjustment part, and the number of counterweights can be increased or decreased when the tension need...
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The invention discloses a drawing / forging-integrated instrument for manufacturing a glass micro nozzle, comprising a micro pin clamping structure, a drawing pin motion structure, a heating wire clamping structure and a forging pin motion structure, wherein the forging pin motion structure is composed of a stepping motor, a motor fixing plate, a shaft coupling, an upper limit switch, a lead screw, a lower limit switch, a lead screw fixing structure, a forging pin slider, a drawing / forging changing-over structure and a stepping motor controller; according to the instrument, a time delay control structure is designed in the instrument, so that the manufacture of a micro nozzle with a large taper and a micro nozzle formed by secondary drawing can be realized; the gravity of an adjustable heavy object and the gravity of a weight are used as drawing force; the instrument disclosed by the invention is characterized by integrating micro pin drawing and micro pin forging, designing the drawing / forging changing-over structure and controlling the forging pin motion by the stepping motor, and therefore, the precision of a forging pin is improved and the automation of the micro pin forging is implemented; and the instrument disclosed by the invention has the advantages of being simple in structure, easy for operation, low in cost and controllable in parameters of drawing and forging techniques.
Description
technical field [0001] The invention belongs to the field of manufacturing glass micro-nozzles, in particular to a draw-forging integrated glass micro-nozzle manufacturing instrument. Background technique [0002] At present, the common micro-nozzle production devices include horizontal and vertical needle pulling instruments and forging needle instruments. There are horizontal and vertical needle pulling instruments, which generally rely on electromagnetic force, pneumatic force, gravity, etc. Open, the working process of the forging instrument is to heat the glass pipe or the outlet of the drawn micro-nozzle. Due to the reduction of the viscosity and the surface tension, the glass will undergo residual deformation, and the port will shrink to form the required geometry. When applied to the generation of micro-droplets, the inner surface of the micro-flow channel with rapid convergence is conducive to the micro-jet phenomenon; when applied to cell micromanipulation and cell...
Claims
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IPC IPC(8): C03B23/045
Inventor 侯丽雅李宗安章维一朱丽
Owner NANJING UNIV OF SCI & TECH