KR20100101218A - Method of manufacturing process asymmetrical polyester bottle - Google Patents

Method of manufacturing process asymmetrical polyester bottle Download PDF

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Publication number
KR20100101218A
KR20100101218A KR1020090019583A KR20090019583A KR20100101218A KR 20100101218 A KR20100101218 A KR 20100101218A KR 1020090019583 A KR1020090019583 A KR 1020090019583A KR 20090019583 A KR20090019583 A KR 20090019583A KR 20100101218 A KR20100101218 A KR 20100101218A
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South Korea
Prior art keywords
preform
cooling
heated
pet bottle
compressed air
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KR1020090019583A
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Korean (ko)
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용 준 배
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용 준 배
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Priority to KR1020090019583A priority Critical patent/KR20100101218A/en
Publication of KR20100101218A publication Critical patent/KR20100101218A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/16—Biaxial stretching during blow-moulding using pressure difference for pre-stretching, e.g. pre-blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/003—PET, i.e. poylethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE: A method for molding an asymmetrical PET(Polyethylene Terephthalate) bottle is provided to prevent the unbalanced thickness distribution by differentiating the elongation rate in vertical and horizontal directions. CONSTITUTION: A method for molding an asymmetrical PET bottle is as follows. A preform body(P2) is heated by rotating a preform(P) and the heated preform is carried to a mold(100). Compressed cooling air is sprayed through an air nozzle(N) of a vertical extension rod(R2) to the inner surface of the preform body and the preform body is partly cooled so as to induce temperature deviation according to part. The vertical extension rod descends to vertically extend the preform body and compressed air of high pressure is sprayed to the preform in order to horizontally extend the preform. Second compressed air is sprayed to the preformed bottle. Resin is stretched to the surface of the mold so a PET bottle(BTL) is completed.

Description

비대칭 페트병 성형방법{Method of manufacturing process asymmetrical polyester bottle}Method of manufacturing asymmetrical PET bottle

본 발명은 비대칭 페트병(직사각형 식용유병 등) 성형방법에 관한 것으로, 더욱 상세하게는 사출성형단계에서 만들어진 시험관 형태의 프리폼 몸체부를 회전시켜 원통부 전체를 동일하게 가열(95℃∼130℃)한 후 종연신 로드를 통한 종방향 연신과 고압의 압축공기를 분사하여 횡방향으로 연신하여 브로잉 성형을 하는 페트병 성형에 관한 것이다.The present invention relates to a method for forming an asymmetric PET bottle (rectangular edible oil bottle, etc.), and more particularly, by heating the entire cylindrical part in the same manner (95 ° C. to 130 ° C.) by rotating a preform body part formed in an injection molding step. The present invention relates to a PET bottle molding in which longitudinal stretching through a longitudinal stretching rod and injection of high pressure compressed air are performed in a transverse direction to draw blowing.

일반적으로 페트병 제조방법은 폴리에스터 칩을 시험관 형태의 프리폼으로 사출성형한 후에 프리폼 몸체부를 회전시키면서 프리폼 표면을 연신에 적합한 온도로 가열한 후에 종연신 로드를 상(하)로 동작시켜 종방향 연신을 시키고 동시에 고압의 압축공기를 분사시켜 횡방향으로 연신(2축연신)하여 페트병을 제조하는 것이 일반적인 페트병 제조방식이다.In general, the PET bottle manufacturing method is injection molding a polyester chip into a preform in the form of a test tube, while heating the preform surface to a temperature suitable for stretching while rotating the preform body portion, the longitudinal stretching rod is operated up and down to perform longitudinal stretching. At the same time, a high-pressure compressed air is blown and stretched in the transverse direction (biaxial stretching) to produce a PET bottle.

그러나 이와 같은 공정에 의해 제조되는 가로길이와 세로길이가 다른 비대칭 페트병(직사각형 형태의 식용유병)의 경우에는 가로방향의 연선비와 세로방향의 연신비가 달라 가로면과 세로면의 두께 차이로 인해 물성이 저하되는 현상이 발생하 게 된다.However, in the case of asymmetric PET bottles (rectangular oil bottles) having different lengths and lengths produced by such a process, the difference in the thickness between the horizontal and vertical planes is different due to the difference in the stretching ratio in the horizontal direction and the vertical direction. This deterioration occurs.

본 발명에서는 사출성형단계에서 만들어진 시험관 형태의 프리폼 몸체부를 회전시켜 원통부 전체를 동일하게 가열(95℃∼130℃)한 후 종연신 로드를 통한 종방향 연신과 고압의 압축공기를 분사하여 브로잉 성형을 하는 과정에서 비대칭 페트병의 경우에 가로방향의 연신비와 세로방향의 연신비가 달라 가로면과 세로면의 두께 차이로 인해 물성이 저하되는 현상을 방지하는 브로잉 성형방법을 제공하는데 그 목적이 있다.In the present invention, by rotating the test tube-formed preform body made in the injection molding step, the entire cylindrical portion is heated in the same manner (95 ° C. to 130 ° C.), followed by longitudinal stretching through a longitudinal drawing rod and blowing with high pressure compressed air. It is an object of the present invention to provide a blowing molding method for preventing a phenomenon in which physical properties are deteriorated due to a difference in the thickness between the transverse and longitudinal planes in the case of an asymmetric PET bottle during the molding process, since the stretch ratio in the transverse direction and the longitudinal direction are different. .

본 발명은 프리폼의 몸체부를 회전시켜 원통부를 가열하여 2축 연신으로 가로방향과 세로방향의 길이가 다른 비대칭 페트병을 제조하는 과정에서, 2축 연신 직전에 일정하게 가열된 프리폼의 표면을 부위별로 비대칭으로 냉각하는 공정을 추가하여 가로방향의 연신률과 세로방향의 연신률 각기 다르게 함으로서 페트병의 두께를 부위별로 조절할 수 있게하는 특징을 가지고 있다.The present invention in the process of producing asymmetrical PET bottles with different lengths in the transverse and longitudinal directions by biaxial stretching by heating the cylindrical portion by rotating the body portion of the preform, asymmetrically by the site of the surface of the preform constantly heated just before biaxial stretching By adding a cooling process, the elongation in the transverse direction and the elongation in the longitudinal direction are different so that the thickness of the PET bottle can be adjusted for each part.

본 발명은 2축 연신 직전에 일정하게 가열된 프리폼 표면을 부위별로 비대칭으로 냉각하여 가로방향의 연신률과 세로방향의 연신률을 다르게 함으로서 가로방향 길이와 세로방향의 길이가 다른 비대칭 페트병 제조시 발생되는 두께분포 불균형을 해소하고 공정운영을 용이하게 하는 특징을 가지고 있다.The present invention provides asymmetrical cooling of the preform surface heated just before biaxial stretching for each part to vary the transverse elongation and the elongation in the longitudinal direction to produce asymmetric PET bottles having different transverse and longitudinal lengths. It is characterized by eliminating distribution imbalances and facilitating process operation.

본 발명을 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.The present invention will now be described in detail with reference to the accompanying drawings.

도 1은 2축 연신을 통해 페트병을 제조하는 공정도로서, 사출성형에 의해 생성된 시험관 형태의 프리폼(P)을 회전(A)시키면서 프리폼 몸체부(P2)를 가열하여 브로잉 금형(100)에 투입한 후 금형(100)을 닫고 연신을 위한 브로잉 준비단계(B)를 거치고1 is a process chart for manufacturing a PET bottle through biaxial stretching, while heating the preform body portion P2 while rotating (A) a test tube form preform generated by injection molding to the blowing mold 100. After the injection, close the mold 100 and go through the blowing preparation step (B) for stretching.

이러한 상태에서 종연신 로드(R1)가 하강하면서 프리폼의 몸체부(P2)를 종방향으로 길게 늘이는 연신공정과 더불어 동시에 고압의 압축공기(5kgf/㎠∼13kgf/㎠)를 금형내에 있는 프리폼에 분사하여 횡방향으로 1차 예비성형단계(C)을 거친후 곧바로 2차 압축공기(25kgf/㎠∼40kgf/㎠)를 금형(100)내에 있는 예비성형병(PB)으로 분사하면, 그 압력에 의해 밀폐된 금형 표면까지 수지가 연신되어 페트병(BTL)이 형성되는 브로잉공정(D)을 거치면서 페트병이 제조된다.In this state, as the longitudinal stretching rod R1 descends, the stretching process of lengthening the body portion P2 of the preform in the longitudinal direction is carried out, and at the same time, high-pressure compressed air (5 kgf / cm 2 to 13 kgf / cm 2) is sprayed onto the preform in the mold. After the first preliminary molding step (C) in the transverse direction, the second compressed air (25kgf / ㎠ ~ 40kgf / ㎠) is injected into the preforming bottle (PB) in the mold 100, by the pressure The PET bottle is manufactured while the blowing process (D) in which the resin is stretched to the closed mold surface to form the PET bottle (BTL).

그러나 도 1에서와 같은 공정으로 도 3에서와 같이 가로길이(X)와 세로길이(Y)가 상이한 비대칭 페트병(B)을 제조할 경우 가로방향의 연신거리(S1)와 세로방향의 연신 거리(S2)가 서로 상이하여 가로면 두꼐(M1)와 세로면 두께(M2) 차이가 발생되고 이로 인하여 제품의 물성을 저하시키는 현상이 발생하게 된다.However, in the same process as in FIG. 1, when the asymmetric PET bottle B having a different length (X) and a length (Y) is manufactured as in FIG. 3, the stretching distance S1 in the horizontal direction and the stretching distance in the vertical direction ( When S2) is different from each other, the difference between the thickness M1 and the thickness M2 of the vertical surface is generated, thereby degrading the physical properties of the product.

따라서 본 발명에서는 도 2에서와 같이 사출성형에 의해 생성된 시험관 형태의 프리폼(P)을 회전시키면서 프리폼 몸체부(P2)를 가열하는 공정(가)을 거친 후 냉각형 종연신 로드(R2)가 가열된 프리폼(P) 하단부까지 1차 하강한 후 냉각형 종연신 로드(R2)에 형성된 공기노즐(N)을 통해 압축된 냉각공기(0.5kgf/㎠∼12kgf/ ㎠)를 가열된 프리폼(P) 내면에 분사시켜 일정한 온도로 가열된 프리폼 몸체부를 부분적으로 냉각시켜 강제로 부위별 온도편차를 유도하는 냉각공정(나)을 거친 후 냉각형 종연신 로드(R2)가 다시 2차 하강하여 프리폼 몸체부(P2)을 종방향으로 연신시키고, 고압의 압축공기(5kgf/㎠∼13kgf/㎠)를 금형(100) 내에 있는 프리폼에 분사하여 횡방향으로 1차 성형 시키는 예비성형공정(다)을 거친 후 곧바로 2차 압축공기(25kgf/㎠∼40kgf/㎠)를 금형(100)내에 있는 예비성형병(PB)으로 분사하면, 그 압력에 의해 밀폐된 금형 표면까지 수지가 연신되어 페트병(BTL)이 형성되게 하는 브로잉공정(라) 구조의 특징을 가지고 있어, 가로길이(X)와 세로길이(Y)가 상이한 비대칭 페트병(B)을 용이하게 제조할 수 있는 성형방법을 제공하는데 그 목적이 있다.Therefore, in the present invention, after cooling the preform body portion P2 while rotating the preform P in the form of a test tube formed by injection molding (A), the cooling longitudinal drawing rod R2 is After the primary descending to the lower end of the heated preform (P), the compressed air (0.5kgf / ㎠ ~ 12kgf / ㎠) compressed through the air nozzle (N) formed in the cooling longitudinal drawing rod (R2) heated preform (P ) Partially cooled the preform body part heated to a certain temperature by spraying on the inner surface and forcedly induces a temperature deviation for each part, followed by a cooling process (b). The part P2 is stretched in the longitudinal direction, and the high-pressure compressed air (5 kgf / cm 2 to 13 kgf / cm 2) is sprayed onto the preform in the mold 100 to undergo primary molding in the lateral direction (C). Immediately afterwards, the secondary compressed air (25kgf / cm 2 to 40kgf / cm 2) When sprayed into the preliminary forming bottle (PB), it has the characteristic of a blowing step (D) structure in which the resin is stretched to the closed mold surface by the pressure, and the PET bottle (BTL) is formed. It is an object of the present invention to provide a molding method that can easily produce an asymmetric PET bottle (B) having a different length (Y).

도 1은 페트병 성형방법에 따른 공정도1 is a process chart according to the PET bottle molding method

도 1의 (A)는 페트병 성형방법에 따른 가열단계 공정도   Figure 1 (A) is a heating step process diagram according to the PET bottle molding method

도 1의 (B)는 페트병 성형방법에 따른 브로잉 준비단계 공정도   Figure 1 (B) is a blowing preparation step process diagram according to the PET bottle molding method

도 1의 (C)는 페트병 성형방법에 따른 예비성형단계 공정도   1 (C) is a preliminary molding step process diagram according to the PET bottle molding method

도 1의 (D)는 페트병 성형방법에 따른 브로잉단계 공정도   1 (D) is a blowing step process diagram according to the PET bottle molding method

도 2는 본 발명에 따른 비대칭 페트병 성형방법에 따른 공정도2 is a process chart according to the asymmetric plastic bottle molding method according to the invention

도 2의 (가)는 페트병 성형방법에 따른 가열단계 공정도   2 (a) is a heating step process diagram according to the PET bottle molding method

도 2의 (나)는 페트병 성형방법에 따른 프리폼 냉각단계 공정도   Figure 2 (b) is a preform cooling step process diagram according to the PET bottle molding method

도 2의 (다)는 페트병 성형방법에 따른 브로잉 준비단계 공정도   2 (c) is a blowing preparation step process diagram according to the PET bottle molding method

도 2의 (라)는 페트병 성형방법에 따른 예비성형단계 공정도   Figure 2 (d) is a preliminary molding step process diagram according to the PET bottle molding method

도 1의 (마)는 페트병 성형방법에 따른 브로잉단계 공정도   1 (E) is a blowing step process diagram according to the PET bottle molding method

도 3의 (바)는 본 발명에 따른 비대칭 페트병 평면도Figure 3 (a) is a plan view of the asymmetric plastic bottle according to the present invention

도 3의 (사)는 본 발명에 따른 비대칭 페트병 금형과 프리폼 그리고 종연신 로드가 배치된 평면도Figure 3 (g) is a plan view of the asymmetric PET bottle mold and preform and longitudinal stretch rod is disposed according to the present invention

- 첨부도면의 주요 부분에 대한 용어 설명 --Explanation of terms for the main parts of the accompanying drawings-

L : 가열히터 R1 : 종연신 로드L: Heating heater R1: Longitudinal drawing rod

R2 : 냉각형 종연신 로드 100 : 금형R2: Cooling longitudinal drawing rod 100: Mold

P : 프리폼 P2 : 프리폼 몸체부P: Preform P2: Preform Body

RS : 냉각형 종연신 로드 공기 공급구멍 BTL : 비대칭 페트병RS: Cooling longitudinally extending rod air supply hole BTL: Asymmetric PET bottle

PB : 예비성형병PB: Preformer

S1 : 가로방향 연신 거리 S1 : 세로방향 연신 거리S1: lengthwise stretching distance S1: lengthwise stretching distance

X : 비대칭 페트병 가로방향 길이 Y : 비대칭 페트병 세로방향 길이X: Asymmetrical PET bottle horizontal length Y: Asymmetrical PET bottle vertical length

M1 : 비대칭 페트병 가로면 두께 M2 : 비대칭 페트병 세로면 두께M1: Asymmetrical PET Bottle Horizontal Thickness M2: Asymmetrical PET Bottle Vertical Thickness

Claims (3)

페트병 성형방법에 있어서, 도 2와 같이 사출성형에 의해 생성된 시험관 형태의 프리폼(P)을 회전시키면서 프리폼 몸체부(P2)를 가열하는 공정(가)을 거친 후 가열된 프리폼(P)을 금형(100)으로 이동시키는 브로잉 준비단계(나)를 거쳐 냉각형 종연신 로드(R2)가 가열된 프리폼(P) 하단부까지 1차 하강한 후 종연신 로드(R2)에 형성된 공기노즐(N)을 통해 압축된 냉각공기(0.5kgf/㎠∼12kgf/㎠)를 가열된 프리폼 몸체부(P2) 내면에 분사시켜 일정한 온도로 가열된 프리폼 몸체부(P2)를 부분적으로 냉각시켜 강제로 부위별 온도편차를 유도하는 냉각공정(다)을 거치게 한 후 냉각형 종연신 로드(R2)가 다시 2차 하강하면서 프리폼 몸체부(P2)을 종방향으로 연신시키고, 고압의 압축공기(5kgf/㎠∼13kgf/㎠)를 금형(100) 내에 있는 프리폼(P)에 분사하여 횡방향으로 1차 성형 시키는 예비성형공정(다)을 거친 후 곧바로 2차 압축공기(25kgf/㎠∼40kgf/㎠)를 금형(100)내에 있는 예비성형병(PB)으로 분사하면, 그 압력에 의해 밀폐된 금형(100) 표면까지 수지가 연신되어 페트병(BTL)이형성되게 하는 브로잉공정(라)의 단계로 구성되어 있는 비대칭 페트병 성형방법.In the PET bottle molding method, after heating the preform body P2 while rotating the test tube form preform P generated by injection molding as shown in FIG. After the blowing preparation step (b) moving to (100), the cooling longitudinal drawing rod (R2) is first lowered to the lower end of the heated preform (P), and then the air nozzle (N) formed in the longitudinal drawing rod (R2). Through the compressed air (0.5kgf / ㎠ ~ 12kgf / ㎠) to the inner surface of the heated preform body portion (P2) by partially cooling the preform body portion (P2) heated to a constant temperature forcibly After passing through the cooling process (C) to induce a deviation, the cooling longitudinal drawing rod (R2) is lowered again to extend the preform body (P2) in the longitudinal direction, and pressurized compressed air (5kgf / ㎠ ~ 13kgf). / Cm 2) is sprayed onto the preform P in the mold 100 to firstly form the lateral direction. Immediately after the preliminary molding process (c), the secondary compressed air (25kgf / cm 2 to 40kgf / cm 2) is injected into the preliminary molding bottle (PB) in the mold 100, and the mold 100 sealed by the pressure is discharged. A method for forming an asymmetric PET bottle comprising a step of a blowing step (D) in which a resin is stretched to the surface to form a PET bottle (BTL). 제 1항에 있어서, 가열된 프리폼 몸체부(P2)를 종방향 연신과 횡방향 연신을 하기 전에 종연신 로드(R2)가 가열된 프리폼(P) 하단부까지 1차 하강한 후 종연신 로드(R2)에 형성된 공기노즐(N)을 통해 압축된 냉각공기(0.5kgf/㎠∼12kgf/㎠)를 가열된 프리폼(P) 내면에 분사시켜 일정한 온도로 가열된 프리폼 몸체부를 부분적 으로 냉각시켜 강제로 부위별 온도편차 를 유도하는 냉각공정(다)이 조합된 비대칭 페트병 성형방법The longitudinal stretching rod (R2) according to claim 1, wherein the longitudinal stretching rod (R2) is first lowered to the lower end of the heated preform (P2) before longitudinally stretching and transversely stretching the heated preform body portion (P2). By spraying the compressed air (0.5kgf / ㎠ ~ 12kgf / ㎠) compressed through the air nozzle (N) formed on the inner surface of the heated preform (P) by partially cooling the preform body portion heated to a constant temperature forcibly Asymmetrical PET bottle molding method combined with cooling process (C) to induce different temperature differences 제 2항에 있어서, 상기의 냉각형 종연신 로드(R2)는 가열된 프리폼의 몸체부를 냉각하기 위한 수단으로 종연신 로드(R2) 하단부에 비대칭으로 배치된 수개의 공기노즐(N)과 압축공기를 공급하는 종연신 로드(R2) 상단에 배치된 공기 공급구멍(RS)으로 구성되는 구조를 특징으로 하는 냉각형 종연신 로드The method of claim 2, wherein the cooling longitudinally extending rod (R2) is a means for cooling the body portion of the heated preform several air nozzles (N) and compressed air asymmetrically arranged at the lower end of the longitudinally extending rod (R2) Cooling longitudinal drawing rod, characterized in that the structure consisting of an air supply hole (RS) disposed on the upper end of the longitudinal drawing rod (R2) for supplying
KR1020090019583A 2009-03-09 2009-03-09 Method of manufacturing process asymmetrical polyester bottle KR20100101218A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102152470A (en) * 2011-01-26 2011-08-17 浙江德玛克机械有限公司 Adjustable clamping device for extension rod of plastic bottle blowing machine
KR20160115001A (en) * 2015-03-25 2016-10-06 (주)우성플라테크 Manufacturing method of cosmetic container pet substitution transparent glass
KR20210048373A (en) * 2019-10-23 2021-05-03 박성규 Resin container manufacturing device and resin container manufacturing method using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102152470A (en) * 2011-01-26 2011-08-17 浙江德玛克机械有限公司 Adjustable clamping device for extension rod of plastic bottle blowing machine
KR20160115001A (en) * 2015-03-25 2016-10-06 (주)우성플라테크 Manufacturing method of cosmetic container pet substitution transparent glass
KR20210048373A (en) * 2019-10-23 2021-05-03 박성규 Resin container manufacturing device and resin container manufacturing method using the same

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