[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 28, No. 4, pp.232-237

ISSN: 2508-5107 (Online)

Print publication date 15 Aug 2019

Received 01 Aug 2019 Revised 10 Aug 2019 Accepted 13 Aug 2019

DOI: https://doi.org/10.7735/ksmte.2019.28.4.232

블로우 사출성형품 디버링을 위한 열풍 방식 공정 자동화 설계

이석준^a ; 유금배^b ; 노범석^c ; 박설현^d^{, *}

Automatic Design of Hot Air Process for Deburring of Blow Injection Molded Products

Seok Joon Lee^a ; Keum Bae Yoo^b ; Beom Seok Rho^c ; Seul Hyun Park^d^{, *}

aDepartment of Mechanical System & Automotive Engineering, Graduate of Chosun University, 309, Pilmun-daero, Dong-gu, Gwangju 61452, Korea
bGlobal Injection Molding Technology Co., Ltd, 29, Cheomdanyeonsin-ro 29beon-gil, Buk-gu, Gwangju 61089, Korea
cKorea Institute of Maritime and Fisheries Technology 367, Haeyang-ro, Yeongdo-gu, Busan 49111, Korea
dSchool of Mechanical System & Automotive Engineering, Chosun University, 309, Pilmun-daero Dong-gu, Gwangju 61452, Korea

Correspondence to: ^*Tel.: +82-62-230-7174 Fax: +82-62-230-7171 E-mail address: isaac@chosun.ac.kr (Seul Hyun Park).

Abstract

The blowing process is advantageous in that it is possible to quickly produce complex shapes of products at a low cost. However, there is a problem that burrs are generated during the process of forming the two metal molds in contact with each other. In this paper, we propose a deburring system using non-contact hot air and perform optimization research for effective deburring. Differential scanning calorimetry (DSC) analysis of high-density polyethylene was carried out to confirm the melting point of about 130℃. Based on the DSC experimental data, it was confirmed whether the hot air was deburred between 130℃ and 500℃. As a result, it was confirmed that the deburring was effective at about 500℃. The temperature of the hot air was fixed at about 500℃ and the feeding speed of the conveyor belt was experimented. As a result, effective deburring was possible when the feeding speed was 4 m/s ~ 5 m/s.

Keywords:

Blow molding, Process automation, Deburring, High density polyethylene, Ice pack

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