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Pressing device and method of polymer microstructure

A processing method and polymer technology are applied in the field of polymer microstructure continuous imprinting molding equipment and processing, and the equipment field for preparing polymer microstructures by plate imprinting, which can solve the problem of uneven fluidity, uneven heating, and uneven filling of molds. sufficient and other problems, to achieve the effect of high geometric replication rate, ensuring flatness and uniformity of heat, and low cost of mold manufacturing

Active Publication Date: 2014-03-12
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One of the purpose of the present invention is to overcome the shortcoming of existing pressing device, provide a kind of pressing device of polymer microstructure, this equipment installs microstructure plate heat embossing equipment and extruder in series, has avoided flat plate in the prior art The imprinting mold requires a complex heating and cooling system that requires frequent heating and cooling, which can save energy and improve production efficiency, and at the same time avoid the stress caused by uneven heating when the substrate is heated twice in the ordinary flat plate imprinting method Deformation, uneven fluidity lead to insufficient mold filling and other problems

Method used

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  • Pressing device and method of polymer microstructure

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Embodiment 1

[0051] The pressing device of a kind of polymer microstructure of the present invention is as figure 1 As shown, it includes a sheet material extruder 1, a pressing roller device 2 for adjusting the flatness and thickness, and a mold pressing machine arranged in sequence.

[0052] The mold pressing machine is provided with a mold frame 7, a die press mechanism, a die drive mechanism, a horizontal movement mechanism, a horizontal drive mechanism and a PLC control system, and the PLC control system controls the die press mechanism, the die drive mechanism, the horizontal movement mechanism and the horizontal movement mechanism. Movement of the drive mechanism.

[0053] The horizontal moving mechanism is provided with a guide rail 10 and a slide block 9 , the guide rail 10 is fixed on a horizontal plane or a base surface, a slide block 9 is arranged on the lower part of the formwork 7 , and the slide block 9 is assembled on the guide rail 10 .

[0054] The horizontal driving mec...

Embodiment 2

[0062] A kind of basic processing method of processing polymer, adopts pressing device as described in embodiment 1 to process, specifically comprises the steps:

[0063] A. Polymer principle Extruded into a sheet-like polymer substrate through a sheet extruder;

[0064] B. The polymer basically enters the pressing roller device to adjust the flatness and thickness;

[0065] C. The polymer substrate coming out of the pressure roller device is input to the position of the rapid heating device, and the temperature of one side or both sides of the polymer substrate is rapidly heated to the glass transition temperature or above the melting point by using the rapid heating device and the polymer surface heating method It is directly transported to the upper and lower templates of the flat plate pressing machine with microstructure for pressing and cooling to shape;

[0066] D. Under the control of the PLC control system, the mold pressing machine drives the slider along the guide ...

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Abstract

The invention discloses a pressing device and a pressing method of a polymer microstructure. The pressing device comprises a sheet extrusion machine, a compression roller device capable of leveling and regulating thickness, and a mold press. The pressing method comprises the steps of directly entering slab pressing equipment after a polymer substrate is extruded from the extrusion machine; flattening the polymer substrate through rolling of two rollers and shaping preliminarily, carrying out rapid heating treatment on the surface of the polymer, and enabling the polymer substrate to enter a slab pressing mold when the temperature of the surface of the polymer substrate is higher than a glassy state or a melting point to press the microstructure. According to the pressing device and the pressing method, the microstructure slab pressing equipment is connected with the extrusion machine in series, so that abundant energy is saved, and the production efficiency is improved, meanwhile, with the slab pressing technology for preparing the polymer microstructure, enough pressure-maintaining cooling and shaping time, accurate cooling temperature and high geometric replication rate can be ensured and continuous large-scale high-efficiency industrial production for slab pressing can be realized.

Description

[0001] technical field [0002] The invention relates to a polymer microstructure continuous embossing forming equipment and a processing method, in particular to a flat plate embossing equipment and a method for preparing a polymer microstructure, belonging to the technical field of polymer processing. Background technique [0003] Hot pressing is originally a traditional mechanical processing technology, which is often used in powder hot pressing. In 1995, Chou et al. of Princeton University proposed nanoimprinting technology, and took the lead in applying traditional thermoforming technology to the production of nanostructures, which is the so-called hot embossing. Subsequently, Weber et al. proposed in 1996 to apply hot pressing technology to the field of micromachining. They believe that micro-hot pressing technology will be a molding technology that can mass-produce precision microstructures, and also mention that the finished products manufactured in this way may hav...

Claims

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Application Information

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IPC IPC(8): B29C69/02B29C47/92B29C59/02B29C35/02B29C43/24B29C48/92
Inventor 刘颖敬鹏生郑秀婷吴大鸣许红杨振洲赵中里
Owner BEIJING UNIV OF CHEM TECH
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