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Spinneret template micropore processing method

A technology of micro-hole processing and spinning, applied in the field of micro-hole processing of spinneret templates, can solve the problems of poor polishing effect and uneven polishing, and achieve the effect of reducing roughness, uniform polishing effect and good cleaning effect.

Inactive Publication Date: 2021-02-19
广西德福莱医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for processing the microholes of the spinneret template, which can solve the problems of uneven polishing and poor polishing effect of the existing long spinneret templates when processing micropores

Method used

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  • Spinneret template micropore processing method
  • Spinneret template micropore processing method

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Effect test

Embodiment 1

[0029] In the spinneret template microhole processing method of this embodiment, the rotating speed of the drilling tool for drilling the microholes on the spinneret template is 10000 rpm, and the feed rate of the drill tool is 0.03 mm / s. After the microholes are drilled, the following steps are also included :

[0030] A, clean the spinneret template that has drilled micropores with a dry ice blaster, clean the micropores at a speed of 2 cm / s from the feeding surface of the spinneret template and the spinneret surface along the direction of the arrangement of the micropores of the spinneret template, During the cleaning process, the distance from the nozzle of the dry ice blasting machine to the surface of the spinneret plate is 10cm, the injection pressure is 0.6 MPa, and the ice output rate is 0.8kg / min;

[0031] B. Install a material frame on the feed surface of the spinneret template, and the material frame surrounds the feed trough on the spinneret template;

[0032] C....

Embodiment 2

[0038] In the spinneret template microhole processing method of the present embodiment, the rotating speed of the drilling tool for drilling the microholes on the spinneret template is 15000 rpm, and the feed rate of the drill tool is 0.04 mm / s. After the microholes are drilled, the following steps are also included :

[0039] A, clean the spinneret template that has drilled micropores with a dry ice blaster, clean the micropores at a speed of 4 cm / s from the feeding surface of the spinneret template and the spinneret surface along the direction of the arrangement of the micropores of the spinneret template, During the cleaning process, the distance from the nozzle of the dry ice blasting machine to the surface of the spinneret plate is 15cm, the injection pressure is 0.8 MPa, and the ice output rate is 1.2kg / min;

[0040] B. Install a material frame on the feed surface of the spinneret template, and the material frame surrounds the feed trough on the spinneret template;

[0...

Embodiment 3

[0047] In the spinneret template microhole processing method of the present embodiment, the rotating speed of the drilling tool for drilling the microholes on the spinneret template is 20000 rpm, and the feed rate of the drill tool is 0.05 mm / s. After the microholes are drilled, the following steps are also included :

[0048] A, clean the spinneret template that has drilled micropores with a dry ice blaster, clean the micropores at a speed of 5 cm / s from the feeding surface of the spinneret template and the spinneret surface along the direction of the arrangement of the micropores of the spinneret template, During the cleaning process, the distance from the nozzle of the dry ice blasting machine to the surface of the spinneret plate is 20cm, the injection pressure is 1 MPa, and the ice output rate is 1.5kg / min;

[0049] B. Install a material frame on the feed surface of the spinneret template, and the material frame surrounds the feed trough on the spinneret template;

[005...

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Abstract

The invention discloses a spinneret template micropore processing method, and relates to the technical field of spinneret template processing. The method comprises the following steps of respectivelycleaning micropores from a feeding face and a spinneret face of a spinneret template by using dry ice; installing a material frame surrounding a feeding groove on the feeding face of the spinneret template, filling the feeding groove of the spinneret template with abrasives, conducting vertical shock excitation, and stopping shock excitation after the abrasives flow out of all the micropores of the spinneret template; filling the material frame with the abrasives, covering the material frame with gauze, installing a box body communicating with the material frame on the material frame, and hermetically connecting the material frame with the box body and the spinneret template; carrying out vertical shock excitation on the spinneret template in the axis direction of the micropores, polishingthe micropores by the abrasives in a vibration state, and continuously filling the box body with compressed air during shock excitation; and after polishing is completed, detaching the spinneret template and cleaning the spinneret template with dry ice to obtain the spinneret plate. According to the processing method, the problems of uneven polishing and poor polishing effect of an existing spinneret plate with a long length during micropore processing are solved.

Description

technical field [0001] The invention relates to the technical field of spinneret template processing, in particular to a method for processing microholes in a spinneret template. Background technique [0002] There are a large number of micropores on the spinneret template, and the diameter of these micropores may be less than 0.2mm. If there are burrs or rough particles on the inner wall of the hole, the spinneret template is prone to clogging during use, or affects the flow rate of meltblown, forms crystals, and forms trachoma on the meltblown cloth, which reduces product quality. Therefore, at present, when processing the micropores of the spinneret template, it is necessary to polish the micropores. The size of the micropores on the spinneret template can generally be obtained by drilling with precision drilling equipment or drilling with laser drilling equipment. Extruded abrasive fluid polishing can obtain a good inner wall finish. However, abrasive fluid polishing m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B24B1/04
CPCB23P15/00B24B1/04
Inventor 蓝国勇阮健
Owner 广西德福莱医疗器械有限公司
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