Method for manufacturing plastic carrier belt

A manufacturing method and carrier tape technology, which is applied to belts, other household appliances, household appliances, etc., can solve the problems of upper cover detachment, different process requirements, and the sealing effect of the carrier tape cannot meet the requirements, so as to improve the surface Performance, the effect of stabilizing electrical performance

Active Publication Date: 2014-09-10
ZHEJIANG JIEMEI ELECTRONICS & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process also has shortcomings: if the plastic components of each layer are not different, the expected effect of the multi-layer cannot be achieved; if the plastic components of each layer are different, different plastic components will have different process requirements; The sealing effect of the tape cannot meet the requirements, and the phenomenon of detaching from the upper cover often occurs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method of manufacturing a plastic carrier tape, comprising the steps of:

[0034] 1) Sheet manufacturing:

[0035] ①Put two different raw materials into different granulators for granulation to obtain two different plastic granules. During granulation, the speed of the main machine of the granulator is 70% of the maximum speed of the main machine, and the feeding speed is 80% of the main engine speed;

[0036] ②Dry the obtained two kinds of plastic particles separately, and the moisture content of the dried plastic particles is 0.05%;

[0037] ③Put the two kinds of dried plastic particles into the extruder respectively, and extrude them into a sheet through the same die. One of the plastic particles forms the middle layer of the sheet, and the other plastic particle forms the upper surface layer of the sheet. and subsurface;

[0038] The upper surface layer and the lower surface layer include a base material of PC, PS and ABS with a mass mixing ratio of 1:2:1, carb...

Embodiment 2

[0046] A method of manufacturing a plastic carrier tape, comprising the steps of:

[0047] 1) Sheet manufacturing:

[0048] ①Put two different raw materials into different granulators for granulation to obtain two different plastic granules. During granulation, the speed of the main engine of the granulator is 80% of the maximum speed of the main machine, and the feeding speed is 90% of the main engine speed;

[0049] ②Dry the obtained two kinds of plastic particles separately, and the moisture content of the dried plastic particles is 0.03%;

[0050] ③Put the two kinds of dried plastic particles into the extruder respectively, and extrude them into a sheet through the same die. One of the plastic particles forms the middle layer of the sheet, and the other plastic particle forms the upper surface layer of the sheet. and subsurface;

[0051] The upper surface layer and the lower surface layer include the base material of PS and PC / ABS alloy with a mass mixing ratio of 1:2, ...

Embodiment 3

[0059] A method of manufacturing a plastic carrier tape, comprising the steps of:

[0060] 1) Sheet manufacturing:

[0061] ①Put two different raw materials into different granulators for granulation to obtain two different plastic granules. During granulation, the speed of the main engine of the granulator is 75% of the maximum speed of the main machine, and the feeding speed is 95% of the main engine speed;

[0062] ②Dry the obtained two kinds of plastic particles separately, and the moisture content of the dried plastic particles is 0.02%;

[0063] ③Put the two kinds of dried plastic particles into the extruder respectively, and extrude them into a sheet through the same die. One of the plastic particles forms the middle layer of the sheet, and the other plastic particle forms the upper surface layer of the sheet. and subsurface;

[0064] The upper surface layer and the lower surface layer include a base material with a mass mixing ratio of PC / ABS alloy, carbon black wra...

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PUM

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Abstract

The invention relates to a method for manufacturing a plastic carrier belt. The method comprises the following steps of (1) sheet manufacturing, wherein the sheet manufacturing step comprises forming of two kinds of particles through prilling, drying and extruding, and one kind of plastic particles forms a middle layer of the sheet, and the other kind of plastic particles forms an upper surface layer and a lower surface layer of the sheet; (2) sheet slitting, wherein the sheet obtained through co-extrusion of three layers is slit by a tool on an extruding machine to form strip-shaped sheets; (3) pocket forming, wherein the slit sheets are arranged on a punch press, the sheets are punched through a forming device, a row of positioning round holes is formed at one side in the length direction of the sheets, a row of pocket type loading holes is formed at the other side in the length direction of the sheets, the sheets are stretched and formed, and the carrier belt is obtained. The method has the pertinence according to different characteristics of raw materials on the layers, the materials are different in layers, the optimum performance of the materials on each layer can make good for deficiency, the performance is stable, the optimum performance of the materials can be fully developed, and therefore on the premise of ensuring the needed performance of the carrier belt, the production cost is reduced.

Description

technical field [0001] The invention relates to a processing method of a carrier tape, in particular to a manufacturing method of a plastic carrier tape. Background technique [0002] Carrier tape refers to a strip-shaped product used in the field of electronic packaging. It has a specific thickness, and is equidistantly distributed along its length direction for holding electronic components and positioning holes for index positioning. Used with the cover tape (upper tape), the electronic components such as resistors, capacitors, transistors, and diodes are carried and stored in the pocket of the carrier tape, and the cover tape is sealed on the top of the carrier tape to form a closed package for protection Electronic components are protected from contamination and damage during transportation. However, with the precision and miniaturization of electronic components, electronic packaging materials are becoming narrower and narrower. With the continuous improvement of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D29/00
Inventor 张澎涛张永辉
Owner ZHEJIANG JIEMEI ELECTRONICS & TECH
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