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KR100948418B1 - Core Chuck - Google Patents

Core Chuck Download PDF

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Publication number
KR100948418B1
KR100948418B1 KR1020080033927A KR20080033927A KR100948418B1 KR 100948418 B1 KR100948418 B1 KR 100948418B1 KR 1020080033927 A KR1020080033927 A KR 1020080033927A KR 20080033927 A KR20080033927 A KR 20080033927A KR 100948418 B1 KR100948418 B1 KR 100948418B1
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KR
South Korea
Prior art keywords
preform
core chuck
cooling
line
main body
Prior art date
Application number
KR1020080033927A
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Korean (ko)
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KR20080092304A (en
Inventor
김병현
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(주)피스코엔지니어링
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Publication of KR20080092304A publication Critical patent/KR20080092304A/en
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Publication of KR100948418B1 publication Critical patent/KR100948418B1/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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6463—Thermal conditioning of preforms by contact heating or cooling, e.g. mandrels or cores specially adapted for heating or cooling preforms
    • 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
    • B29C49/48—Moulds
    • 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
    • B29C49/66—Cooling by refrigerant introduced into the blown article
    • 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
    • B29C49/48—Moulds
    • B29C2049/4874—Moulds characterised by the material, e.g. having different thermal conductivities or hardness
    • B29C2049/4876—Moulds characterised by the material, e.g. having different thermal conductivities or hardness one material being heat insulating material
    • 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
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
    • B29K2995/0015—Insulating
    • 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

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

Abstract

본 발명은 코어척에 관한 것으로, 냉각수의 출입을 위해 본체(110)에 삽입되는 체결부(121b)와, 프리폼에 삽입되고 프리폼 내외의 공기소통을 위한 에어라인(AL)이 형성된 냉각부(121c)와, 체결부(121b)와 냉각부(121c)를 잇는 노출부(121d)와, 본체(110)의 유출라인(115)과 연통하고 체결부(121b)ㆍ냉각부(121c)ㆍ노출부(121d)를 경유하는 중공부(121a)가 형성된 하우징(121)과; 중공부(121a)의 내면과 이격되게 내설되고 본체(110)의 유입라인(111)과 중공부(121a)에 각각 연통하는 관부재(122)로 구성된 코어척에 있어서, 상기 노출부(121d)의 둘레면을 덮는 제1단열부재(123)가 더 포함되어, 코어척(120)의 외면에 결로의 발생이 현저히 줄어, 프리폼의 냉각작업이 용이한 효과가 있다.The present invention relates to a core chuck, a cooling portion 121c having a fastening portion 121b inserted into the main body 110 to enter and exit the cooling water, and an air line AL inserted into the preform and for air communication in and out of the preform. ), The exposed portion 121d connecting the fastening portion 121b and the cooling portion 121c, and the outflow line 115 of the main body 110 to communicate with the fastening portion 121b, the cooling portion 121c and the exposed portion. A housing 121 in which the hollow part 121a via 121d is formed; In the core chuck composed of a pipe member 122 which is installed to be spaced apart from the inner surface of the hollow portion 121a and communicates with the inflow line 111 and the hollow portion 121a of the main body 110, the exposed portion 121d. The first insulation member 123 is further included to cover the circumferential surface of the core, so that the occurrence of condensation on the outer surface of the core chuck 120 is significantly reduced, thereby facilitating the cooling of the preform.

Description

코어척{Core Chuck}Core Chuck}

본 발명은 페트병의 목부분을 냉각시키는 기구에 관한 것으로, 페트병 제조공정에 있어서의 중간물인 프리폼을 냉각처리하여 목부분을 결정화하는 코어척에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for cooling the neck of a PET bottle. The present invention relates to a core chuck that crystallizes a neck by cooling a preform as an intermediate in a PET bottle manufacturing process.

주지된 바와 같이, 페트병은 폴리에틸렌을 원료로 하여 만든 것으로, 가볍고 깨지지 않으며 성형이 용이하다는 장점으로 인해서 그 수요가 점차 확대되고 있는 추세이다.As is well known, PET bottles are made of polyethylene as a raw material, and their demand is gradually increasing due to the advantages of being lightweight, unbreakable, and easy to mold.

상기 폐트병은 내용물의 종류에 따라서 재질이나 열처리 상태를 달리하고 있는데, 생수처럼 저온 상태의 내용물을 그대로 보관하는 페트병의 경우에는 목부분을 결정화할 필요가 없으므로 별도의 열처리가 불필요하지만, 과일 쥬스처럼 내용물을 살균 처리해서 보관하는 페트병의 경우에는 목부분의 손상을 방지하기 위해서 목부분을 열처리하여 결정화해야 한다.The bottle is made of different materials or heat treatment depending on the type of contents, in the case of PET bottles that keep the contents of the low temperature state, such as bottled water, there is no need to crystallize the neck portion, so no separate heat treatment is necessary, but like fruit juice. PET bottles, which contain the contents after sterilization, must be crystallized by heat treatment to prevent neck damage.

목부분이 결정화되어진 폐트병의 제조과정에 대해서 개략적으로 설명해 보면 다음과 같다.The following is a brief description of the manufacturing process of the neck disease crystallized neck.

우선, 원료 저장고에 저장된 원료(컴파운드 형태)는 건조기로 이송되어 원료 에 함유된 수분이 제거된 후, 사출성형기로 이송되어 페트병 제조를 위한 중간물인 프리폼으로 사출 성형되며, 사출성형시에 형성된 프리폼의 게이트부분(프리폼의 하단 돌기부분)은 절단기에 의해 적정길이로 절단된다.First, the raw material (compound form) stored in the raw material reservoir is transferred to a dryer to remove moisture contained in the raw material, and then transferred to an injection molding machine, which is injection molded into a preform which is an intermediate for manufacturing a PET bottle, and the preform formed at the time of injection molding. The gate portion (lower projection of the preform) is cut to the appropriate length by a cutter.

이후, 상기 프리폼은 결정화장치에 의해서 열처리되어 프리폼의 목부분이 결정화된다.Thereafter, the preform is heat treated by a crystallization apparatus to crystallize the neck of the preform.

도 1은 결정화장치를 나타낸 도면으로서, 이를 참조하여 결정화장치에 대해서 설명해 보면 다음과 같다.1 is a view showing a crystallization apparatus, the crystallization apparatus will be described with reference to the following.

결정화장치(M)은 도 1에 도시된 바와 같이, 구동장치(1)와, 구동장치(1)에 의해 맞물려 회동되어서, 가열장치(6)에 의해 가열된 프리폼의 목부분을 냉각하는 프리폼 냉각용 로터리장치(2), 프리폼 냉각용 로터리장치(2)에 맞물려 연동되어서, 프리폼을 공정진행방향으로 순환 이송하는 프리폼 이송장치(3), 프리폼 냉각용 로터리장치(2)에 맞물려 연동되어서, 외부로부터의 프리폼을 프리폼 이송장치(3)로 공급하는 프리폼 공급장치(4), 프리폼 냉각용 로터리장치(2)에 맞물려 연동되어서, 프리폼 냉각용 로터리장치(2)에 의해 냉각처리된 프리폼을 외부로 배출하는 프리폼 배출장치(5) 및, 프리폼 공급장치(4)와 프리폼 냉각용 로터리장치(2) 사이에 배치되어서, 프리폼 이송장치(3)에 의해 프리폼 공급장치(4)로부터 프리폼 냉각용 로터리장치(2)로 이송되는 프리폼의 목부분을 가열하는 가열장치(6)로 이루어진다.As shown in FIG. 1, the crystallization device M is rotated in engagement with the drive device 1 and the drive device 1 to cool the neck of the preform heated by the heating device 6. Interlocked with and interlocked with the rotary device (2) for preforms, the rotary device (2) for preform cooling, and interlocked with and interlocked with the preform feeder (3) and the preform cooling rotary device (2) for circulating and conveying the preform in the process progress direction. The preform cooled by the preform cooling rotary device 2 is interlocked with the preform supply device 4 and preform cooling rotary device 2 for supplying the preform from the preform conveying device 3 to the outside. The preform discharge device 5 to be discharged, and the preform supply device 4 and the preform cooling rotary device 2, are disposed between the preform feeder 3 and the preform cooling device 4 by the preform supply device 3. Preform transported to (2) It comprises a heating device 6 for heating the neck portion.

여기서 프리폼의 이동과정을 살펴보면, 외부로부터의 프리폼은 프리폼 공급장치(4)에 의해 프리폼 이송장치(3)에 공급되고, 이후 프리폼 이송장치(3)를 따라 이동하면서 가열장치(6)에 의해 목부분이 가열된다. 가열된 프리폼은 이송장치(3) 를 따라 계속적으로 이동하면서 프리폼 냉각용 로터리장치(2)로 이송되며, 가열된 프리폼의 목부분이 냉각용 로터리장치(2)에 설치된 코어척에 의해 냉각되어 프리폼 배출장치(5)에 의해 외부로 배출된다. Looking at the movement of the preform here, the preform from the outside is supplied to the preform feeder (3) by the preform feeder (4), and then moved by the heating device (6) while moving along the preform feeder (3). The part is heated. The heated preform is continuously transferred along the feeder 3 to the preform cooling rotary device 2, and the neck of the heated preform is cooled by a core chuck installed in the cooling rotary device 2 and the preform. It is discharged to the outside by the discharge device (5).

도 2 내지 도 4는 코어척블록이 슬라이더를 매개로 가이드부재에 연결된 것을 나타낸 도면이고, 도 5는 도 3의 A-A 단면도이고, 도 6은 도 3의 B-B 단면도로서, 이를 참조하여 코어측블럭을 상세히 설명하면 다음과 같다.2 to 4 is a view showing that the core chuck block is connected to the guide member via a slider, Figure 5 is a cross-sectional view AA of Figure 3, Figure 6 is a cross-sectional view BB of Figure 3, referring to the core side block It will be described in detail as follows.

코어척블록(100)은 도 2 내지 도 4에 도시된 바와 같이, 슬라이더(S)를 매개로 가이드부재(G)에 이동가능하게 연결된다. 한편, 가이드부재(G)는 프리폼 냉각용 로터리장치(2)에 연결된다.2 to 4, the core chuck block 100 is movably connected to the guide member G through the slider S. Meanwhile, the guide member G is connected to the rotary device 2 for preform cooling.

또한 도 5 및 도 6을 참조하면, 코어척블록(100)은, 슬라이더(S)에 연결되는 본체(110)와, 본체(110)의 하부에 체결되는 코어척(120)으로 이루어진다.5 and 6, the core chuck block 100 includes a main body 110 connected to the slider S and a core chuck 120 fastened to the lower portion of the main body 110.

상기 본체(110)는, 스틸재질로, 냉각수가 공급되는 유입라인(111)과, 유입라인(111)과 연통되는 제1분기라인(112)과, 제1분기라인(112)과 연통되는 다수의 코어척삽입부(113)와, 코어척삽입부(113)와 연통되는 제2분기라인(114)과, 제2분기라인(114)과 연통되어 냉각수가 배출되는 유출라인(115)를 갖춘다.The main body 110 is a steel material, the inlet line 111 to which the coolant is supplied, the first branch line 112 communicating with the inlet line 111, and the plurality of first communication lines communicating with the first branch line 112. Core chuck insertion portion 113, a second branch line 114 in communication with the core chuck insertion portion 113, and an outlet line 115 in communication with the second branch line 114 to discharge the coolant. .

상기 유입라인(111)은 본체(110)의 내부에 상하방향으로 형성되고, 유입라인(111)의 상단이 연결체(R1)를 매개로 외부의 냉각수 공급라인(미도시)과 연결되고, 유입라인(111)의 하단이 제1분기라인(112)와 연통된다. The inflow line 111 is formed in the up and down direction inside the main body 110, the upper end of the inflow line 111 is connected to the external cooling water supply line (not shown) via the connector (R1), inflow The lower end of the line 111 is in communication with the first branch line 112.

상기 제1분기라인(112)은, 본체(110) 내부에 수평방향으로 형성되어, 유입라인(111)의 하단과 연결되며, 양단부가 하방으로 개구된다.The first branch line 112 is formed in the horizontal direction inside the main body 110, is connected to the lower end of the inflow line 111, and both ends thereof open downward.

상기 코어척삽입부(113)는, 제1분기라인(112)의 양단에 상하방향으로 형성되어, 상단이 유입라인(111)과 연통되며, 하단이 개구되어 외부로 노출된다. 이때, 코어척삽입부(113)는, 코어척(120)이 체결되는 코어척체결부(113a)와, 코어척체결부(113a)의 상부에 형성되어 제1분기라인(112) 및 제2분기라인(114)과 연통되는 연통부(113b)로 구획된다.The core chuck insertion portion 113 is formed at both ends of the first branch line 112 in the vertical direction, the upper end is in communication with the inflow line 111, the lower end is opened and exposed to the outside. At this time, the core chuck insertion portion 113 is formed on the core chuck fastening portion 113a to which the core chuck 120 is fastened and the core chuck fastening portion 113a to form the first branch line 112 and the second. It is partitioned into the communication part 113b which communicates with the branch line 114. FIG.

상기 제2분기라인(114)은, 본체(110) 내부에 수평방향으로 형성되되 제1분기라인(112)의 후방에 형성되며, 양단이 각각의 코어척삽입부(113)의 연통부(113b)와 연통된다. The second branch line 114 is formed in the horizontal direction inside the main body 110, but is formed at the rear of the first branch line 112, both ends of the communication portion 113b of each core chuck insertion portion 113. ).

상기 유출라인(115)은 본체(110) 내부에 상하방향으로 형성되며, 유출라인(115)의 하단이 제2분기라인(114)과 연통되고, 유출라인(115)의 상단이 연결부재(R1')을 매개로 외부의 배출라인에 연결된다.The outlet line 115 is formed in the body 110 in the vertical direction, the lower end of the outlet line 115 is in communication with the second branch line 114, the upper end of the outlet line 115 is the connection member (R1) It is connected to an external discharge line via ').

한편, 본체(110)의 전면에는 프리폼 냉각용 로터리장치(2)에 설치된 캠의 경로를 따라 이동하는 캠팔로어(F)가 형성된다.On the other hand, the front of the main body 110 is formed a cam follower (F) to move along the path of the cam installed in the rotary device for preform cooling (2).

이때, 종래의 코어척(120)은, 상단부에 본체(110)의 코어척체결부(113a)와 체결되는 체결부(121b)가 형성되고, 하단부에 프리폼이 삽입되는 냉각부(121c)가 구비되며, 체결부(121b)와 냉각부(121c) 사이에 코어척(120)이 끼워졌을 시 외부로 노출되는 노출부(121d)가 형성된 하우징(121)과, 하우징(121)에 삽입되는 관부재(122)를 갖춘다.At this time, the conventional core chuck 120 is provided with a fastening portion 121b for fastening to the core chuck fastening portion 113a of the main body 110 at the upper end, and a cooling part 121c having a preform inserted at the lower end thereof. When the core chuck 120 is inserted between the fastening part 121b and the cooling part 121c, the housing 121 having an exposed part 121d exposed to the outside is formed, and the pipe member inserted into the housing 121. (122).

상기 하우징(121)은, 냉각부(121c)에 공기가 소통되는 에어라인(AL)이 형성된다. 따라서, 하우징(121)에 끼워진 프리폼(P)의 내부공기가 공기가 에어라인(AL) 을 통해 외부와 소통되어, 프리폼이 하우징(121)에 좀더 쉽게 삽탈된다. The housing 121 has an air line AL in which air is communicated to the cooling unit 121c. Therefore, the air inside the preform P fitted to the housing 121 communicates with the outside through the air line AL, so that the preform is more easily inserted into and removed from the housing 121.

또한, 상기 하우징(121)은, 내부에 코어척삽입부(113)의 연통부(113b)와 연통되도록 상면이 개구된 중공부(121a)가 상하방향으로 형성되어, 코어척삽입부(113)의 코어척체결부(113a)에 삽탈가능하게 체결된다. 이때 하우징(121)의 외면에는 나사산이 형성되어 코어척체결부(113a)에 나사결합된다.In addition, the housing 121 has a hollow portion 121a having an upper surface opened in a vertical direction so as to communicate with the communicating portion 113b of the core chuck insertion portion 113 therein, and thus, the core chuck insertion portion 113. Is detachably fastened to the core chuck fastening portion 113a. At this time, the outer surface of the housing 121 is formed with a screw thread is screwed to the core chuck fastening portion (113a).

상기 관부재(122)는, 상단이 연결부재(R2)를 매개로 본체(110)의 제1분기라인(112)과 연결되고, 하단이 하우징(121)의 중공부(121a)와 연통되도록 중공부(121a)의 하면과 일정간격 이격되며, 중공부(121a)와 갭(g)이 형성되도록 중공부(121a)의 직경 보다 작은 직경을 가진다. The pipe member 122, the upper end is connected to the first branch line 112 of the body 110 via the connecting member (R2), the lower end is hollow so as to communicate with the hollow portion 121a of the housing 121 It is spaced apart from the lower surface of the portion 121a by a predetermined interval, and has a diameter smaller than the diameter of the hollow portion 121a so that the hollow portion 121a and the gap g are formed.

이때, 상기 연통부(113b)의 내면과 연결부재(R2)의 외면에 나사산이 형성된 체결부(a1,a2)가 각각 형성되어, 연결부재(R2)가 체결부(a1,a2)를 매개로 연통부(113b)에 나사결합된다. At this time, the fastening portions (a1, a2) having a screw thread is formed on the inner surface of the communication portion (113b) and the outer surface of the connecting member (R2), respectively, the connecting member (R2) via the fastening portions (a1, a2) through It is screwed to the communication part 113b.

도 5 및 도 6을 참조하여 냉각수의 흐름을 살펴보면 다음과 같다.Looking at the flow of the coolant with reference to Figures 5 and 6 as follows.

외부의 냉각수 공급라인으로부터 들어온 냉각수는 본체(110)의 유입라인(111)을 통과하여 제1분기라인(112)에서 각각의 코어척(120)으로 분기된다. 이후 냉각수는 각각의 코어척(120)의 관부재(122)로 흐르고, 계속적으로 관부재(122)의 저면을 통과하여 하우징(121)의 중공부(121a)를 따라 이동한다. 중공부(121a)를 따라 이동하는 냉각수는 코어척체결부(113)의 연통부(113b)를 지난 후 본체(110)의 제2분기라인(114)을 거쳐 유출라인(115)을 통해 외부로 배출된다.Cooling water coming from the external cooling water supply line passes through the inflow line 111 of the main body 110 and branches from the first branch line 112 to each core chuck 120. After that, the coolant flows to the tube member 122 of each core chuck 120, and continuously passes along the bottom surface of the tube member 122 and moves along the hollow portion 121a of the housing 121. The coolant moving along the hollow portion 121a passes through the second branch line 114 of the main body 110 and passes through the outlet line 115 after passing through the communicating portion 113b of the core chuck fastening portion 113. Discharged.

한편, 상기 코어척(120)은 스틸재질이기 때문에, 냉각수가 통과할 시 노출부(121d)에 결로가 형성될 수 있으며, 이 결로가 코어척(120)의 외면을 타고 내려가 고온의 프리폼에 안 좋은 영향을 주게 된다.On the other hand, since the core chuck 120 is made of steel, condensation may be formed on the exposed portion 121d when the cooling water passes, and the condensation is lowered on the outer surface of the core chuck 120 to be placed in a high temperature preform. It will have a good effect.

본 발명은 상기와 같은 문제를 해소하기 위해 발명된 것으로, 외면에 결로의 발생이 현저히 줄어드는 코어척을 제공함에 그 목적이 있다.The present invention has been invented to solve the above problems, and an object thereof is to provide a core chuck in which the occurrence of condensation on the outer surface is significantly reduced.

상기와 같은 과제를 해결하기 위한 본 발명은, 냉각수의 출입을 위해 본체에 삽입되는 체결부와, 프리폼에 삽입되고 프리폼 내외의 공기소통을 위한 에어라인이 형성된 냉각부와, 체결부와 냉각부를 잇는 노출부와, 본체의 유출라인과 연통하고 체결부ㆍ냉각부ㆍ노출부를 경유하는 중공부가 형성된 하우징과; 중공부의 내면과 이격되게 내설되고 본체의 유입라인과 중공부에 각각 연통하는 관부재로 구성된 코어척에 있어서, 상기 노출부의 둘레면을 덮는 제1단열부재가 더 포함되는 것을 특징으로 한다.The present invention for solving the above problems, the fastening portion is inserted into the main body for the access of the coolant, the cooling portion is inserted into the preform and the air line for air communication in and out of the preform, connecting the fastening portion and the cooling portion A housing in which the exposed portion and the hollow portion communicate with the outlet line of the main body and pass through the fastening portion, the cooling portion, and the exposed portion; In the core chuck composed of a tubular member which is spaced apart from the inner surface of the hollow portion and communicates with the inlet line and the hollow portion of the main body, the first insulating member covering the circumferential surface of the exposed portion is further included.

또한, 상기 제1단열부재와 노출부가 상호 이격 배치되는 것을 특징으로 한다.In addition, the first insulation member and the exposed portion is characterized in that spaced apart from each other.

또한, 상기 중공부의 내면을 덮는 제2단열부재가 더 포함되는 것을 특징으로 한다.In addition, it characterized in that it further comprises a second insulating member covering the inner surface of the hollow portion.

이상 상기한 바와 같은 본 발명은, 코어척에 제1단열부재 및 제2단열부재가 보강설치되어, 코어척의 외면에 결로가 발생되지 않으므로, 프리폼 냉각작업이 용이한 효과가 있다.The present invention as described above, the first insulation member and the second insulation member is reinforced to the core chuck, condensation does not occur on the outer surface of the core chuck, there is an effect that the preform cooling operation is easy.

이하 본 발명을 첨부된 예시도면에 의거하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 7 및 도 8은 본 발명을 도시한 도면으로서, 종래 기술을 도시한 도 2 내지 도 6과 동일한 부위에는 동일한 참조부호를 붙이면서 그 설명은 생략하기로 한다.7 and 8 are views showing the present invention, the same reference numerals are attached to the same portions as those of FIGS. 2 to 6 showing the prior art, and description thereof will be omitted.

도 7은 본 발명에 따른 코어척블록이 슬라이더를 매개로 가이드부재에 이동가능하게 설치된 것을 나타낸 분해사시도이고, 도 8은 본 발명에 따른 코어척블록의 단면도로서, 도 7 및 도 8을 참조하면 다음과 같다. 7 is an exploded perspective view showing that the core chuck block according to the present invention is movably installed on the guide member via a slider, and FIG. 8 is a cross-sectional view of the core chuck block according to the present invention, referring to FIGS. 7 and 8. As follows.

본 발명에 따른 코어척(120)이 코어척블록(100)의 본체(110)에 삽탈가능하게 끼워지는 것은 종래와 동일하다.The core chuck 120 according to the present invention is detachably fitted to the main body 110 of the core chuck block 100 as in the prior art.

여기에, 본 발명에 따른 코어척(120)은, 코어척삽입부(113)에 삽탈가능하게 고정되는 하우징(121)과, 하우징(121) 내부에 설치되는 관부재(122)를 갖춘다.Here, the core chuck 120 according to the present invention includes a housing 121 that is removably fixed to the core chuck insertion portion 113, and a pipe member 122 installed inside the housing 121.

상기 하우징(121)은, 내부에 코어척삽입부(113)의 연통부(113b)와 연통되도록 상면이 개구된 중공부(121a)가 상하방향으로 형성된다.The housing 121 has a hollow portion 121a having an upper surface opened in a vertical direction so as to communicate with a communicating portion 113b of the core chuck insertion portion 113 therein.

그리고, 상기 하우징(121)은, 상단부에 코어척체결부(113a)와 나사 결합되는 체결부(121b)가 형성되고, 하단부에 프리폼이 삽입되는 냉각부(121c)가 형성되며, 체결부(121b)와 냉각부(121c) 사이에 노출부(121d)가 형성되어, 코어척체결부(113a)에 삽탈가능하게 체결된다. In addition, the housing 121 has a fastening part 121b for screwing the core chuck fastening part 113a to an upper end part, and a cooling part 121c for inserting a preform into a lower end part of the housing 121, and a fastening part 121b. ) And the exposed part 121d is formed between the cooling part 121c, and are detachably fastened to the core chuck fastening part 113a.

여기서, 상기 냉각부(121c)는, 일측에 공기가 소통되는 에어라인(AL)이 형성된다. 이때, 에어라인(AL)은 상하방향으로 형성되어, 상단은 하우징(121)의 측면으 로 개구되고, 하단은 하우징(121)의 저면으로 개구된다. Here, the cooling unit 121c is formed with an air line AL in which air is communicated on one side. At this time, the air line AL is formed in the vertical direction, the upper end is opened to the side of the housing 121, the lower end is opened to the bottom surface of the housing 121.

따라서, 상기 하우징(121)의 냉각부(121c)에 프리폼이 끼워지면, 에어라인(AL)의 하단은 프리폼의 내부에 위치되고 상단은 프리폼의 외부로 노출되어, 프리폼의 내부공기가 에어라인(AL)을 통해 외부와 소통된다. 따라서, 프리폼이 하우징(121)에 좀더 쉽게 삽탈된다. Therefore, when the preform is inserted into the cooling unit 121c of the housing 121, the lower end of the air line AL is positioned inside the preform and the upper end is exposed to the outside of the preform, so that the air inside the preform is airline ( It communicates with the outside through AL). Thus, the preform is more easily inserted into the housing 121.

상기 관부재(122)는, 상단이 연결부재(R2)를 매개로 본체(110)의 제1분기라인(112)과 연결되고, 하단이 하우징(121)의 중공부(121a)와 연통되도록 중공부(121a)의 내면 하부와 일정간격 이격되도록 삽입되며, 중공부(121a) 내면과 일정 갭이 형성되도록 중공부(121a)의 직경 보다 작은 직경을 가진다.The pipe member 122, the upper end is connected to the first branch line 112 of the body 110 via the connecting member (R2), the lower end is hollow so as to communicate with the hollow portion 121a of the housing 121 It is inserted to be spaced apart from the lower portion of the inner surface of the portion 121a, and has a diameter smaller than the diameter of the hollow portion 121a to form a predetermined gap with the inner surface of the hollow portion 121a.

이때, 상기 연통부(113b)의 내면과 연결부재(R2)의 외면에 나사산이 형성된 체결부(a1,a2)가 각각 형성되어, 연결부재(R2)가 체결부(a1,a2)를 매개로 연통부(113b)에 나사결합된다. At this time, the fastening portions (a1, a2) having a screw thread is formed on the inner surface of the communication portion (113b) and the outer surface of the connecting member (R2), respectively, the connecting member (R2) via the fastening portions (a1, a2) through It is screwed to the communication part 113b.

한편, 본 발명은, 상기 하우징(121)의 노출부(121d)에 관 형상의 제1단열부재(123)가 삽입고정된다. 따라서, 하우징(121)의 중공부(121a) 내면을 따라 흐르는 냉각수가 하우징(121)의 노출부(121d)를 냉각시킬 시, 냉각된 노출부(121d)가 주변공기와 직접적으로 닿지 않으며, 동시에 노출부(121d)의 냉온이 제1단열부재(123)에 의해 외부 공기에 직접적으로 전달되지 않아, 제1단열부재(123)의 외면에 결로가 발생하지 않는다. On the other hand, in the present invention, the tubular first insulation member 123 is inserted and fixed to the exposed portion 121d of the housing 121. Therefore, when the coolant flowing along the inner surface of the hollow part 121a of the housing 121 cools the exposed part 121d of the housing 121, the cooled exposed part 121d does not directly contact the surrounding air, Since the cold temperature of the exposed portion 121d is not directly transmitted to the outside air by the first insulation member 123, condensation does not occur on the outer surface of the first insulation member 123.

이때, 상기 제1단열부재(123)는 하우징(121)의 노출부(121d)로부터 일정간격 이격되는 것이 바람직하다. 이는 제1단열부재(123)와 하우징(121)의 노출부(121d) 사이에 갭을 형성함으로써, 단열효과를 더욱 높이기 위함이다.At this time, the first insulation member 123 is preferably spaced apart from the exposed portion 121d of the housing 121 by a predetermined interval. This is to further increase the thermal insulation effect by forming a gap between the first insulation member 123 and the exposed portion 121d of the housing 121.

또한, 본 발명은, 상기 하우징(121)의 중공부(121a) 내면에 관 형상의 제2단열부재(124)가 삽입고정될 수 있다. 이때, 제2단열부재(124)의 내면은 관부재(122)의 외면으로부터 일정간격 이격 되도록 삽입되며, 제1단열부재(123)와 마주보는 위치에 설치된다. In addition, in the present invention, the tubular second insulation member 124 may be inserted and fixed to the inner surface of the hollow part 121a of the housing 121. At this time, the inner surface of the second insulation member 124 is inserted to be spaced apart from the outer surface of the tube member 122 by a predetermined interval, and is installed in a position facing the first insulation member 123.

따라서, 냉각수가 중공부(121a)의 내면을 따라 흐를 시, 냉각수이 냉온이 노출부(121d)에 직접적으로 전달되지 않아, 노출부(121d)의 냉각으로 인한 결로발생이 일어나지 않는다. Therefore, when the coolant flows along the inner surface of the hollow part 121a, the coolant is not directly transmitted to the exposed part 121d, and condensation does not occur due to the cooling of the exposed part 121d.

이하 본 발명에 따른 코어척의 작용을 설명하면 다음과 같다.Hereinafter, the operation of the core chuck according to the present invention will be described.

외부의 냉각수 공급라인으로부터 유입라인(111)로 냉각수가 유입되면, 냉각수는 유입라인(111))을 통과하여 제1분기라인(112)으로 유입되어, 각각의 코어척(120)의 관부재(122)로 이동한다.When the coolant flows into the inflow line 111 from the external coolant supply line, the coolant flows through the inflow line 111 and flows into the first branch line 112 to form a pipe member of each core chuck 120. Go to 122).

상기 코어척(120)의 관부재(122)로 유입된 냉각수는, 관부재(122)를 통과하여 관부재(122)의 하단으로 유출되고, 유출된 냉각수는 하우징(121)의 중공부(121a) 내면을 따라 이동하면서, 코어척(120)을 냉각시킨다. 이때, 코어척(120)의 삽입부(121c)에는 프리폼의 목 부분이 삽입되어, 프리폼의 목 부분이 냉각된다. The coolant flowing into the tube member 122 of the core chuck 120 passes through the tube member 122 and flows out to the lower end of the tube member 122, and the coolant flowed out is the hollow portion 121a of the housing 121. The core chuck 120 is cooled while moving along the inner surface. At this time, the neck portion of the preform is inserted into the insertion portion 121c of the core chuck 120, and the neck portion of the preform is cooled.

계속해서, 냉각수가, 코어척삽입부(113)의 연통부(113b)를 통과하여 제2분기라인(114)으로 유입되면, 유입된 냉각수는 유출라인(115)을 통과하여, 배출라인을 통해 외부로 배출된다. Subsequently, when the cooling water flows into the second branch line 114 through the communication portion 113b of the core chuck insertion portion 113, the introduced cooling water passes through the outlet line 115 and passes through the discharge line. It is discharged to the outside.

상술한 바와 같이, 본 발명에 따른 코어척은, 코어척(120)의 내·외부에는 제1·제2단열부재(123,124)가 형성되어, 냉각수가 관부재(122)를 흐를 시, 냉온이 코어척(120)의 외면으로 전달되는 것을 최소화할 수 있다. As described above, in the core chuck according to the present invention, first and second insulation members 123 and 124 are formed inside and outside of the core chuck 120, and when the coolant flows through the pipe member 122, cold and hot It is possible to minimize the transfer to the outer surface of the core chuck (120).

도 1은 결정화장치를 나타낸 평면 배치도이고,1 is a plan view showing a crystallization apparatus,

도 2는 종래의 기술에 따른 코어척블록이 슬라이더를 매개로 가이드부재에 연결된 것을 도시한 사시도이고,Figure 2 is a perspective view showing that the core chuck block according to the prior art is connected to the guide member via a slider,

도 3은 종래의 기술에 따른 도 2의 좌측면도이고,3 is a left side view of FIG. 2 according to the prior art,

도 4는 종래의 기술에 따른 도 2의 분해사시도이고,Figure 4 is an exploded perspective view of Figure 2 according to the prior art,

도 5는 종래의 기술에 따른 도 3의 A-A 단면도이고, 5 is a cross-sectional view taken along line A-A of FIG. 3 according to the prior art;

도 6은 종래의 기술에 따른 도 3의 B-B 단면도이고,6 is a cross-sectional view taken along line B-B of FIG. 3 according to the prior art;

도 7은 본 발명에 따른 코어척블록이 슬라이더를 매개로 가이드부재에 이동가능하게 설치된 것을 나타낸 분해사시도이고, 7 is an exploded perspective view showing that the core chuck block according to the present invention is installed to be moved to the guide member via a slider,

도 8은 본 발명에 따른 코어척블록의 단면도이다.8 is a cross-sectional view of the core chuck block according to the present invention.

-첨부도면의 주요부분에 대한 용어설명_Explanation of terms for the main parts of the accompanying drawings_

1; 구동장치 2; 로터리장치One; Drive unit 2; Rotary device

3; 프리폼 이송장치 4; 프리폼 공급장치3; Preform feeder 4; Preform Feeder

5; 프리폼 배출장치 6; 가열장치5; Preform discharger 6; Heater

100; 코어척블록 110; 본체100; Core chuck block 110; main body

111; 유입라인 112; 제1분기라인 113; 코어척삽입부 113a; 코어척체결부111; Inlet line 112; First branch line 113; Core chuck insertion portion 113a; Core Chucks

113b; 연통부 114; 제2분기라인 115; 유출라인 120; 코어척113b; Communication unit 114; Second branch line 115; Outlet line 120; Core Chuck

121; 하우징 121a; 중공부121; A housing 121a; Hollow part

121b; 체결부 121c; 냉각부121b; Fastening portion 121c; Cooling section

121d; 노출부 122; 관부재121d; Exposed portion 122; Pipe member

123; 제1단열부재 124; 제2단열부재123; First insulating member 124; Second insulation member

M; 결정화장치 AL; 에어라인M; Crystallization device AL; Airlines

F; 캠팔로워 R1,R1',R2; 연결부재F; Cam followers R1, R1 ', R2; Connecting member

G; 가이드부재 S; 슬라이더 G; Guide member S; Slider

Claims (3)

냉각수의 출입을 위해 본체(110)에 삽입되는 체결부(121b)와, 프리폼에 삽입되고 프리폼 내외의 공기소통을 위한 에어라인(AL)이 형성된 냉각부(121c)와, 체결부(121b)와 냉각부(121c)를 잇는 노출부(121d)와, 본체(110)의 유출라인(115)과 연통하고 체결부(121b)ㆍ냉각부(121c)ㆍ노출부(121d)를 경유하는 중공부(121a)가 형성된 하우징(121)과; 중공부(121a)의 내면과 이격되게 내설되고 본체(110)의 유입라인(111)과 중공부(121a)에 각각 연통하는 관부재(122)로 구성된 코어척에 있어서,A fastening part 121b inserted into the main body 110 to access the coolant, a cooling part 121c inserted into the preform and having an air line AL for air communication in and out of the preform, and the fastening part 121b; An exposed portion 121d connecting the cooling portion 121c and a hollow portion communicating with the outlet line 115 of the main body 110 and passing through the fastening portion 121b, the cooling portion 121c, and the exposure portion 121d ( A housing 121 in which 121a is formed; In the core chuck composed of a pipe member 122 which is installed to be spaced apart from the inner surface of the hollow portion 121a and communicates with the inlet line 111 and the hollow portion 121a of the main body 110, respectively. 상기 노출부(121d)의 둘레면을 덮는 제1단열부재(123)가 더 포함되는 것을 특징으로 하는 코어척.A core chuck further comprises a first insulation member (123) covering the peripheral surface of the exposed portion (121d). 제 1 항에 있어서,The method of claim 1, 상기 제1단열부재(123)와 노출부(121d)가 상호 이격 배치되는 것을 특징으로 하는 코어척.Core chuck, characterized in that the first insulation member 123 and the exposed portion 121d are spaced apart from each other. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기 중공부(121a)의 내면을 덮는 제2단열부재(124)가 더 포함되는 것을 특징으로 하는 코어척.Core chuck, characterized in that further comprises a second insulating member (124) covering the inner surface of the hollow portion (121a).
KR1020080033927A 2007-04-11 2008-04-11 Core Chuck KR100948418B1 (en)

Applications Claiming Priority (2)

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KR20070035755 2007-04-11
KR1020070035755 2007-04-11

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05261799A (en) * 1992-03-17 1993-10-12 Denki Kagaku Kogyo Kk Method for molding resin hollow container
JP2000309050A (en) 1999-04-27 2000-11-07 Toyo Seikan Kaisha Ltd Biaxial stretch blow molding apparatus
JP2001158040A (en) 1999-09-22 2001-06-12 Nissei Asb Mach Co Ltd Apparatus for crystallizing neck part of preform
JP2006315410A (en) 1999-09-22 2006-11-24 Nissei Asb Mach Co Ltd Crystallization device for neck portion of preform

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05261799A (en) * 1992-03-17 1993-10-12 Denki Kagaku Kogyo Kk Method for molding resin hollow container
JP2000309050A (en) 1999-04-27 2000-11-07 Toyo Seikan Kaisha Ltd Biaxial stretch blow molding apparatus
JP2001158040A (en) 1999-09-22 2001-06-12 Nissei Asb Mach Co Ltd Apparatus for crystallizing neck part of preform
JP2006315410A (en) 1999-09-22 2006-11-24 Nissei Asb Mach Co Ltd Crystallization device for neck portion of preform

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