[go: up one dir, main page]

KR20240069397A - Honeycomb panel manufacturing method and Honeycomb panel manufactured by the method and Mold for manufacturing honeycomb panel - Google Patents

Honeycomb panel manufacturing method and Honeycomb panel manufactured by the method and Mold for manufacturing honeycomb panel Download PDF

Info

Publication number
KR20240069397A
KR20240069397A KR1020220150861A KR20220150861A KR20240069397A KR 20240069397 A KR20240069397 A KR 20240069397A KR 1020220150861 A KR1020220150861 A KR 1020220150861A KR 20220150861 A KR20220150861 A KR 20220150861A KR 20240069397 A KR20240069397 A KR 20240069397A
Authority
KR
South Korea
Prior art keywords
honeycomb
manufacturing
mold
honeycomb core
honeycomb panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
KR1020220150861A
Other languages
Korean (ko)
Other versions
KR102798117B1 (en
Inventor
김승재
이용재
오동권
한상민
김동우
Original Assignee
재영솔루텍 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 재영솔루텍 주식회사 filed Critical 재영솔루텍 주식회사
Priority to KR1020220150861A priority Critical patent/KR102798117B1/en
Publication of KR20240069397A publication Critical patent/KR20240069397A/en
Application granted granted Critical
Publication of KR102798117B1 publication Critical patent/KR102798117B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/146Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers whereby one or more of the layers is a honeycomb structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • B29C45/401Ejector pin constructions or mountings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D24/00Producing articles with hollow walls
    • B29D24/002Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B29D24/005Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having joined ribs, e.g. honeycomb
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00Condition, form or state of the layers or laminate
    • B32B2305/02Cellular or porous
    • B32B2305/024Honeycomb

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

본 발명은 허니콤패널 제작방법 및 상기 방법에 의해 제작된 허니콤패널과 허니콤패널 제작용 금형에 관한 것이다. 허니콤패널 제작방법은, 판상의 베이스판부와, 베이스판부의 일면에 일체를 이루는 허니콤코어부로 구성된 본체를, 사출성형 방식으로 제작하는 본체성형단계와; 제작된 본체의 허니콤코어부에 고정판을 결합하는 고정판결합단계로 이루어진다.
상기와 같이 이루어지는 본 발명의 허니콤패널 제작방법은, 허니콤패널과 베이스판이 사출 성형 방식으로 제작되므로, 제작 시간이 단축됨은 물론, 사용 중 벌어짐 현상이 절반으로 줄어 그만큼 상품성이 양호한 허니콤패널을 제공한다. 또한, 본 발명의 제작장치는, 허니콤코어의 성형 제작 시 허니콤코어의 변형을 야기하지 않는다.
The present invention relates to a honeycomb panel manufacturing method, a honeycomb panel manufactured by the method, and a mold for manufacturing the honeycomb panel. The honeycomb panel manufacturing method includes a body molding step of manufacturing a main body composed of a plate-shaped base plate portion and a honeycomb core portion integrated with one surface of the base plate portion by injection molding; It consists of a fixing plate joining step in which a fixing plate is joined to the honeycomb core of the manufactured body.
In the honeycomb panel manufacturing method of the present invention as described above, the honeycomb panel and the base plate are manufactured by injection molding, so the manufacturing time is shortened, and the phenomenon of opening during use is reduced by half, creating a honeycomb panel with good marketability. to provide. Additionally, the manufacturing apparatus of the present invention does not cause deformation of the honeycomb core during molding and manufacturing of the honeycomb core.

Description

허니콤패널 제작방법 및 상기 방법에 의해 제작된 허니콤패널과 허니콤패널 제작용 금형{Honeycomb panel manufacturing method and Honeycomb panel manufactured by the method and Mold for manufacturing honeycomb panel}Honeycomb panel manufacturing method and honeycomb panel manufactured by the method and mold for manufacturing the honeycomb panel {Honeycomb panel manufacturing method and Honeycomb panel manufactured by the method and Mold for manufacturing honeycomb panel}

본 발명은 허니콤패널에 관한 것으로서, 보다 상세하게는 제작 공정이 간단하며 내구성이 뛰어난 허니콤패널을 제작할 수 있는, 허니콤패널 제작방법 및 상기 방법에 의해 제작된 허니콤패널과 허니콤패널 제작용 금형에 관한 것이다.The present invention relates to a honeycomb panel, and more specifically, to a honeycomb panel manufacturing method that can manufacture a honeycomb panel with a simple manufacturing process and excellent durability, and to the honeycomb panel and honeycomb panel manufactured by the method. It's about the dragon mold.

허니콤패널은, 건축물의 내외장재로부터 항공기나 자동차 또는 선박 등에 이르기까지 다양한 산업분야에서 널리 사용되는 자재로서, 두 장의 외부판과, 외부판 사이의 허니콤코어의 기본 구성을 가진다. 허니콤패널은, 방음이나 단열효과가 양호하고 가벼워 설치가 용이하며 특히 압축력에 대한 내하중성이 뛰어나다. Honeycomb panels are materials widely used in various industrial fields ranging from interior and exterior materials of buildings to aircraft, automobiles, and ships, and have the basic structure of two outer plates and a honeycomb core between the outer plates. Honeycomb panels have good soundproofing and thermal insulation effects, are light, and are easy to install. In particular, they have excellent load resistance against compressive forces.

도 1에 종래의 일반적인 허니콤패널을 도시하였다.Figure 1 shows a typical conventional honeycomb panel.

도시한 바와 같이, 종래 허니콤패널(11)은, 허니콤코어(15)와, 두 장의 외부판(13)으로 구성된다. 허니콤코어(15)는 벌집 구조를 가지며, 외부판에 대해 접착이나 용접 또는 융착 방식으로 고정된다. 외부판(13)과 허니콤코어(15)의 고정 방식은 부재의 재질에 따라 달라진다.As shown, the conventional honeycomb panel 11 consists of a honeycomb core 15 and two outer plates 13. The honeycomb core 15 has a honeycomb structure and is fixed to the outer plate by adhesive, welding, or fusion. The fixing method of the outer plate 13 and the honeycomb core 15 varies depending on the material of the member.

그런데 이러한 허니콤패널(11)은, 애초에 별도의 부재였던 외부판(13)을 허니콤코어(15)의 양면에 결합시키는 것이므로, 시간이 지남에 따라, 또는 충격에 의한 변형 시, 결합부위가 벌어질 수 있다. 즉, 허니콤코어(15)로부터 외부판(13)이 들떠 분리된다는 단점이 있다. 이에 따라 다양한 방식의 허니콤패널 제조 방법이 제안되고 있다.However, in this honeycomb panel 11, the outer plate 13, which was originally a separate member, is joined to both sides of the honeycomb core 15, so over time or when deformed by impact, the joining area becomes unstable. It can happen. That is, there is a disadvantage that the outer plate 13 is lifted and separated from the honeycomb core 15. Accordingly, various methods of manufacturing honeycomb panels have been proposed.

가령, 국내공개특허공보 제10-2004-0027717호에는, 예비 가공된 하니콤 복합판넬의 제조방법이 개시된 바 있다. 개시된 제조방법은, 중앙의 하니콤코어와 상하평판 사이에 상하 열용융 접착필름을 내재시켜 열압착에 의하여 하니콤 복합판넬을 제조하는 방법에 있어서, 상하평판 중 어느 일측면의 평판을 소정의 크기로 사방을 일정 폭으로 절곡한 후 네모서리를 마무리하여 4각형 절곡박스를 만든 다음, 절곡박스 내면 넓이와 동일한 크기로 열용융 접착필름과 하니콤 코어 및 나머지 타측면의 평판을 절단하여 절곡박스내에 차례로 적층한 다음 핫프레스내에서 열압착시키는 구성을 포함한다.For example, in Korean Patent Publication No. 10-2004-0027717, a method for manufacturing a preprocessed honeycomb composite panel has been disclosed. The disclosed manufacturing method is a method of manufacturing a honeycomb composite panel by thermal compression by embedding upper and lower heat-melted adhesive films between the central honeycomb core and the upper and lower plates, and forming the flat plate on either side of the upper and lower plates to a predetermined size. After bending all sides to a certain width, finishing the square corners to create a square bent box, then cutting the heat melt adhesive film, honeycomb core, and the remaining flat plate on the other side to the same size as the inner area of the bending box, and inserting them into the bending box. It includes stacking them sequentially and then heat-compressing them in a hot press.

본 발명은, 시간이 지나거나 외부 충격에 의한 변형이 발생한다 하더라도 벌어짐 현상이 크게 줄어 그만큼 수명이 긴, 허니콤패널과 허니콤패널 제작방법을 제공함에 목적이 있다.The purpose of the present invention is to provide a honeycomb panel and a method of manufacturing the honeycomb panel that have a long lifespan by greatly reducing the phenomenon of spreading even if deformation occurs over time or due to external impact.

또한, 본 발명은, 허니콤코어의 성형 제작 시 허니콤코어의 변형을 야기하지 않는, 허니콤패널 제작용 금형을 제공함에 목적이 있다.Another object of the present invention is to provide a mold for manufacturing a honeycomb panel that does not cause deformation of the honeycomb core during molding and manufacturing of the honeycomb core.

상기 목적을 달성하기 위한 과제의 해결수단으로서의 본 발명의 허니콤패널 제작방법은, 판상의 베이스판부와, 베이스판부의 일면에 일체를 이루는 허니콤코어부로 구성된 본체를, 사출성형 방식으로 제작하는 본체성형단계와; 제작된 본체의 허니콤코어부에 고정판을 결합하는 고정판결합단계가 포함된다.The honeycomb panel manufacturing method of the present invention as a means of solving the problem for achieving the above object is a main body composed of a plate-shaped base plate portion and a honeycomb core portion integrated with one surface of the base plate portion, which is manufactured by injection molding. forming step; A fixing plate joining step is included in which the fixing plate is joined to the honeycomb core part of the manufactured body.

또한, 상기 고정판결합단계는; 고정판과 본체 사이에 접착제를 도포하는 접착제도포공정과, 접착제의 도포가 완료된 후, 고정판을 허니콤코어부에 밀착시키는 밀착공정을 갖는다.Additionally, the fixing plate combining step includes; It has an adhesive application process in which adhesive is applied between the fixing plate and the main body, and an adhesion process in which the fixing plate is brought into close contact with the honeycomb core portion after the application of the adhesive is completed.

또한, 본 발명의 허니콤패널 제작용 금형은, 판상의 베이스판부와, 베이스판부의 일면에 일체를 이루는 허니콤코어부로 이루어진 본체를, 사출성형 하기 위한 것으로서, 상기 허니콤코어부를 형성할 제1성형공간이 마련되어 있는 하부금형과; 하부금형의 상부에 위치하며, 하부금형과의 형합 시, 제1성형공간을 포함함과 아울러 베이스판부를 형성할 제2성형공간을 갖는 상부금형과; 본체 성형 완료 후, 제1성형공간으로 진입하여, 허니콤코어부를 제1성형공간 상부로 밀어 올리는 다수의 밀핀을 구비한다.In addition, the mold for manufacturing a honeycomb panel of the present invention is for injection molding a main body consisting of a plate-shaped base plate portion and a honeycomb core portion integrated with one surface of the base plate portion, and the first mold to form the honeycomb core portion. A lower mold with a molding space; an upper mold located above the lower mold and including a first molding space when joined with the lower mold and having a second molding space to form a base plate portion; After the main body molding is completed, it enters the first molding space and is equipped with a plurality of push pins to push the honeycomb core portion to the upper part of the first molding space.

그리고, 상기 하부금형의 상부에는, 상부금형과의 형합 시, 상기 제2성형공간의 내부로 삽입되는 것으로서, 육각의 평면형상을 가지고 일정간격으로 이격된 다수의 육각돌기가 위치하며, 상기 제1성형공간은, 이웃하는 육각돌기 사이의 공간이다.And, on the upper part of the lower mold, a plurality of hexagonal protrusions, which are inserted into the second molding space when molded with the upper mold, have a hexagonal planar shape and are spaced at regular intervals are located, and the first The forming space is the space between neighboring hexagonal protrusions.

아울러, 상기 밀핀은, 상호 이웃하고 있는 세 개의 육각돌기 사이의 제1성형공간으로 진입한다.In addition, the push pin enters the first forming space between three adjacent hexagonal protrusions.

또한, 상기 밀핀은; 제1성형공간의 연직 하부에 승강 가능하도록 배치된 지지부와, 지지부의 상부에 고정되며 수직방향으로 연장되고, 지지부의 상승 시 제1성형공간으로 진입하는 공간삽입부와, 공간삽입부의 상단부에 이어지며 수평으로 연장되고, 허니콤코어부에 가해지는 하중을 분산하는 하중분산부를 포함한다.Additionally, the push pin; A support part arranged to be able to be raised and lowered at the vertical lower part of the first molding space, a space insertion part fixed to the upper part of the support part and extending in the vertical direction, and entering the first molding space when the support part rises, and the upper end of the space insertion part It extends horizontally and includes a load distribution unit that distributes the load applied to the honeycomb core unit.

그리고, 본 발명의 허니콤패널은, 판상의 베이스판부, 베이스판부의 일면에 일체를 이루며 허니콤의 구조를 갖는 허니콤코어부로 이루어진 본체와; 상기 허니콤코어부에 고정되는 고정판을 포함하여 구성된다.And, the honeycomb panel of the present invention includes a main body consisting of a plate-shaped base plate portion and a honeycomb core portion that is integrated with one surface of the base plate portion and has a honeycomb structure; It is configured to include a fixing plate fixed to the honeycomb core portion.

또한, 상기 본체는 사출 성형 방식으로 제작된다.Additionally, the main body is manufactured by injection molding.

아울러, 상기 고정판은, 허니콤코어부에 대해 접착제를 통해 접착 고정된다.In addition, the fixing plate is adhesively fixed to the honeycomb core portion through an adhesive.

상기와 같이 이루어지는 본 발명의 허니콤패널 제작방법은, 허니콤패널과 베이스판이 사출 성형 방식으로 제작되므로, 제작 시간이 단축됨은 물론, 사용 중 벌어짐 현상이 절반으로 줄어 그만큼 상품성이 양호한 허니콤패널을 제공한다.In the honeycomb panel manufacturing method of the present invention as described above, the honeycomb panel and the base plate are manufactured by injection molding, so the manufacturing time is shortened, and the phenomenon of opening during use is reduced by half, creating a honeycomb panel with good marketability. to provide.

또한, 본 발명의 제작용 금형은, 허니콤코어의 성형 제작 시 허니콤코어의 변형을 야기하지 않는다.Additionally, the manufacturing mold of the present invention does not cause deformation of the honeycomb core during molding and manufacturing of the honeycomb core.

도 1은 종래 허니콤패널의 절제 사시도이다.
도 2는 본 발명의 일 실시예에 따른 허니콤패널 제작방법을 설명하기 위한 도면이다.
도 3은 본 발명의 일 실시예에 따른 허니콤패널 제작방법을 나타내 보인 블록도이다.
도 4는 도 2에 도시한 제작방법에 의해 제작된 허니콤패널의 구조를 나타내 보인 도면이다.
도 5는 본 발명의 일 실시예에 따른 허니콤패널 제작용 금형의 단면도이다.
도 6은 도 5에 도시한 하부금형의 평면 형상을 설명하기 위한 도면이다.
도 7은 본 발명의 일 실시예에 따른 허니콤패널 제작용 금형에 적용할 수 있는 하중분산형 밀핀의 사시도이다.
Figure 1 is an excised perspective view of a conventional honeycomb panel.
Figure 2 is a diagram for explaining a method of manufacturing a honeycomb panel according to an embodiment of the present invention.
Figure 3 is a block diagram showing a method of manufacturing a honeycomb panel according to an embodiment of the present invention.
Figure 4 is a diagram showing the structure of a honeycomb panel manufactured by the manufacturing method shown in Figure 2.
Figure 5 is a cross-sectional view of a mold for manufacturing a honeycomb panel according to an embodiment of the present invention.
FIG. 6 is a diagram for explaining the planar shape of the lower mold shown in FIG. 5.
Figure 7 is a perspective view of a load distribution type push pin that can be applied to a mold for manufacturing a honeycomb panel according to an embodiment of the present invention.

이하, 본 발명에 따른 하나의 실시예를 첨부된 도면을 참조하여 보다 상세히 설명하기로 한다.Hereinafter, one embodiment according to the present invention will be described in more detail with reference to the attached drawings.

도 2는 본 발명의 일 실시예에 따른 허니콤패널 제작방법을 설명하기 위한 도면이고, 도 3은 본 발명의 일 실시예에 따른 허니콤패널 제작방법을 나타내 보인 블록도이다.FIG. 2 is a diagram illustrating a method of manufacturing a honeycomb panel according to an embodiment of the present invention, and FIG. 3 is a block diagram showing a method of manufacturing a honeycomb panel according to an embodiment of the present invention.

도시한 바와 같이, 본 실시예에 따른 허니콤패널 제작방법은, 본체성형단계(101), 고정판준비단계(103), 결합단계(105)를 포함한다.As shown, the honeycomb panel manufacturing method according to this embodiment includes a main body forming step (101), a fixing plate preparation step (103), and a joining step (105).

본체성형단계(101)는, 도 2d에 도시한 구조의 본체(41)를 사출성형 방식으로 제작하는 과정이다. 사출성형은 후술하는 사출용 금형(20)을 통해 이루어진다.The body forming step 101 is a process of manufacturing the main body 41 of the structure shown in FIG. 2D by injection molding. Injection molding is performed through an injection mold 20, which will be described later.

본체(41)는, 베이스판부(41a)와 허니콤코어부(41b)로 구성된다. 베이스판부(41a)는 일정두께를 갖는 사각판으로서, 종전 허니콤패널의 외부판 역할을 한다. 베이스판부(41a)의 두께는 달라질 수 있다. The main body 41 is composed of a base plate portion 41a and a honeycomb core portion 41b. The base plate portion 41a is a square plate with a certain thickness and serves as the outer plate of a conventional honeycomb panel. The thickness of the base plate portion 41a may vary.

허니콤코어부(41b)는 베이스판부(41a)의 한쪽면에 일체로 형성된 구조물이다. 허니콤코어부(41b)와 베이스판부(41a)는 하나의 금형에서 사출 성형되므로 처음부터 하나의 몸체를 이룬다. 즉, 융착되거나 접착된 것이 아니라, 일체형 구조를 갖는 것이다. 따라서 시간이 지나거나 충격이 가해지더라도, 허니콤코어부(41b)와 베이스판부(41a)가 벌어질 염려가 없다.The honeycomb core portion 41b is a structure formed integrally with one side of the base plate portion 41a. The honeycomb core portion 41b and the base plate portion 41a are injection molded in one mold, so they form one body from the beginning. In other words, it is not fused or glued, but has an integrated structure. Therefore, even if time passes or an impact is applied, there is no fear that the honeycomb core portion 41b and the base plate portion 41a will separate.

고정판준비단계(103)는 허니콤코어부(41b)에 부착할 고정판(43)을 진비하는 과정이다. 고정판(43)은 베이스판부(41a)와 동일한 사이즈의 사각판이다. 고정판(43)의 재질은 다양하며, 본체(41)의 재질과 마찬가지로 합성수지이거나 다른 재질 일 수 있다. 가령, 고정판은 알루미늄 일 수 있다.The fixing plate preparation step 103 is a process of preparing the fixing plate 43 to be attached to the honeycomb core portion 41b. The fixing plate 43 is a square plate of the same size as the base plate portion 41a. The material of the fixing plate 43 is diverse, and like the material of the main body 41, it may be synthetic resin or another material. For example, the fixing plate may be aluminum.

고정판결합단계(105)는, 본체(41)의 허니콤코어부(41b)에 고정판(43)을 고정시키는 과정으로서 접착제도포공정(105a)과 밀착공정(105b)을 포함하낟.The fixing plate joining step 105 is a process of fixing the fixing plate 43 to the honeycomb core portion 41b of the main body 41 and includes an adhesive application process 105a and an adhesion process 105b.

접착제도포공정(105a)은 고정판과 본체 사이에 접착제(도 4의 44)를 도포하는 과정이다. 접착제는 허니콤코어부(41b)측에 롤러를 통해 도포함이 바람직하다. 밀착공정(105b)은 접착제의 도포가 완료된 후, 고정판을 허니콤코어부에 밀착시키는 과정이다. 고정판(43)을 허니콤코어부(41b) 측에 밀착시킴으로서 , 본체(41)에 대한 고정판(43)의 고정이 완료되며, 도 2e에 도시한 허니콤패널(50)의 제작이 완료된다.The adhesive application process 105a is a process of applying adhesive (44 in FIG. 4) between the fixing plate and the main body. The adhesive is preferably applied to the honeycomb core portion 41b using a roller. The adhesion process 105b is a process of attaching the fixing plate to the honeycomb core portion after the application of the adhesive is completed. By bringing the fixing plate 43 into close contact with the honeycomb core portion 41b, the fixation of the fixing plate 43 to the main body 41 is completed, and the production of the honeycomb panel 50 shown in FIG. 2E is completed.

실시예에 따라 접착제를 대신하는 다른 고정수단도 적용 가능하다. 이를테면, 허니콤코어부(41b)와 고정판(43)을 융착하거나, 볼팅 결합할 수도 있는 것이다.Depending on the embodiment, other fixing means instead of adhesive can also be applied. For example, the honeycomb core portion 41b and the fixing plate 43 may be fused or bolted together.

도 4는 도 2에 도시한 제작방법에 의해 제작된 허니콤패널(50)의 구조를 나타내 보인 도면이다.FIG. 4 is a diagram showing the structure of the honeycomb panel 50 manufactured by the manufacturing method shown in FIG. 2.

도시한 바와 같이, 허니콤패널(50)은, 본체(41)와, 본체(41)의 상부에 고정된 고정판(43)으로 이루어진다. 위에 설명한 바와 같이, 본체(41)와 고정판(43)은 접착제(44)를 통해 고정된다.As shown, the honeycomb panel 50 consists of a main body 41 and a fixing plate 43 fixed to the upper part of the main body 41. As described above, the main body 41 and the fixing plate 43 are fixed through an adhesive 44.

아울러, 본체(41)는, 판상의 베이스판부(41a)와 허니콤코어부(41b)로 이루어진다. 허니콤코어부(41b)는 베이스판부의 일면에 일체를 이룬다. 허니콤코어부(41b)는 육각의 벌집 구조를 갖는다.In addition, the main body 41 consists of a plate-shaped base plate portion 41a and a honeycomb core portion 41b. The honeycomb core portion 41b is integrated with one surface of the base plate portion. The honeycomb core portion 41b has a hexagonal honeycomb structure.

상기 구성을 갖는 본 실시예의 허니콤패널(50)은, 본체(41)와 고정판(43)의 투피스로 이루어진다. 접합부위가 한 군데이므로, (접합부위가 두 군데 인) 종전의 허니콤패널에 비해 그 내구성이 양호하며 수명이 길다. 말하자면, 시간이 지나거나, 외부로부터의 충격을 받았을 때, 고정판이 벌어질 확률이 절반인 것이다.The honeycomb panel 50 of this embodiment having the above configuration is made of two pieces: a main body 41 and a fixing plate 43. Since there is only one joint, its durability is good and its lifespan is long compared to the existing honeycomb panel (which has two joints). In other words, as time passes or an external shock is received, the probability of the fixing plate opening is 50%.

도 5는 본 발명의 일 실시예에 따른 허니콤패널 제작용 금형(20)의 단면도이고, 도 6은 도 5에 도시한 하부금형의 평면 형상을 설명하기 위한 도면이다. 도시한 허니콤패널 제작용 금형(20)은, 위에 설명한 본체(41)를 사출 성형하기 위한 장치이다.Figure 5 is a cross-sectional view of a mold 20 for manufacturing a honeycomb panel according to an embodiment of the present invention, and Figure 6 is a diagram for explaining the plan shape of the lower mold shown in Figure 5. The illustrated mold 20 for manufacturing a honeycomb panel is a device for injection molding the main body 41 described above.

도시한 바와 같이, 금형(20)은, 하부금형(21), 상부금형(25), 밀핀장치(도 2의 27)를 갖는다.As shown, the mold 20 has a lower mold 21, an upper mold 25, and a push pin device (27 in FIG. 2).

하부금형(21)은, 허니콤코어부(41b)를 형성할 제1성형공간(23b)을 제공한다. 하부금형(21)의 상면에는 밀착면(23d)과 다수의 육각돌기(23a)가 마련되어 있다. 밀착면(23d)은 도 2b와 같이, 상부금형(25)과 하부금형(21)의 형합 시, 상부금형(25)의 저면에 밀착하는 수평면이다.The lower mold 21 provides a first molding space 23b to form the honeycomb core portion 41b. The upper surface of the lower mold 21 is provided with a contact surface 23d and a plurality of hexagonal protrusions 23a. The contact surface 23d is a horizontal surface that comes into close contact with the bottom of the upper mold 25 when the upper mold 25 and the lower mold 21 are joined, as shown in FIG. 2b.

육각돌기(23a)는 육각형의 평면형상(위에서 보았을 때 육각형의 모양을 가진다는 의미)을 가지고 일정간격으로 이격된 돌출부로서, 밀착면(23d)으로부터 동일한 높이로 돌출되어 있다. 제1성형공간(23b)은, 상호 이웃하고 있는 육각돌기(23a)의 사이공간이다. 상하부금형이 형합한 상태에서, 외부로부터 주입되는 용융수지는 제1성형공간(23b)에 채워져 육각의 허니콤코어부(41b)를 형성한다.The hexagonal protrusions 23a are protrusions that have a hexagonal planar shape (meaning they have a hexagonal shape when viewed from above) and are spaced apart at regular intervals, and protrude from the contact surface 23d at the same height. The first forming space 23b is a space between adjacent hexagonal protrusions 23a. With the upper and lower molds joined together, molten resin injected from the outside fills the first molding space 23b to form a hexagonal honeycomb core portion 41b.

상부금형(25)은, 하부금형의 수직방향 상부에 위치하며, 저면에 제2성형공간(25a)을 갖는다. 제2성형공간(25a)은 일정깊이를 갖는 사각홈으로서, 하부금형과의 형합 시 육각돌기(23a)를 수용한다. 이 때 육각돌기(23a)의 상면은, 도 2b에 도시한 바와 같이, 제2성형공간(25a)의 바닥면(25f)에 닿지 않는다. 육각돌기(23a)와 바닥면(25f)의 사이가, 베이스판부(41a) 성형공간이다. The upper mold 25 is located vertically above the lower mold and has a second molding space 25a on its bottom. The second molding space 25a is a square groove with a certain depth, and accommodates the hexagonal protrusion 23a when molded with the lower mold. At this time, the upper surface of the hexagonal protrusion 23a does not contact the bottom surface 25f of the second molding space 25a, as shown in FIG. 2B. The space between the hexagonal protrusion 23a and the bottom surface 25f is the molding space of the base plate portion 41a.

결국, 상부금형(25)과 하부금형(21)이 결합하면, 상부금형과 하부금형 사이에 제1,2성형공간(23b,25a)이 형성되고, 외부로부터 주입된 용융수지는 제1,2성형공간을 동시에 채운다.Ultimately, when the upper mold 25 and the lower mold 21 are combined, the first and second molding spaces (23b, 25a) are formed between the upper mold and the lower mold, and the molten resin injected from the outside is formed into the first and second molding spaces. Fills the molding space simultaneously.

밀핀장치(27)는 다수의 밀핀(도 5의 28)을 구비한다. 밀핀(28)은 하부금형(21)에 승강 가능하게 내장된다. 밀핀(28)은 본체(41) 성형 완료 후, 제1성형공간으로 상향 진입하여, 성형물을 제1성형공간 상부로 밀어 올린다. 밀핀(29)의 승강 방식 자체는 일반적인 것으로서 그에 관한 설명은 생략한다.The push pin device 27 is provided with a plurality of push pins (28 in FIG. 5). The push pin 28 is built into the lower mold 21 to be able to be lifted up and down. After the molding of the main body 41 is completed, the push pin 28 enters the first molding space upward and pushes the molded product to the upper part of the first molding space. The lifting method of the push pin 29 itself is general and its description will be omitted.

특히 밀핀(28)은, 이웃하는 세 개의 육각돌기(23a)의 사이, 말하자면, 도 6에 표시한 공동 경계부위(도 6의 Z)의 수직 하부에 대응 위치한다. 밀핀은, 세 개의 육각돌기 사이의 제1성형공간으로 진입하며 성형을 마친 본체를 금형으로부터 분리시킨다.In particular, the push pin 28 is located between the three neighboring hexagonal protrusions 23a, that is, at the vertical lower part of the cavity boundary shown in FIG. 6 (Z in FIG. 6). The push pin enters the first molding space between the three hexagonal protrusions and separates the molded body from the mold.

밀핀(28)의 간격은 금형의 사이즈에 따라 달라진다. 아울러 밀핀의 모양도 변경 가능하며, 가령 도 7의 형태를 취할 수 있다.The spacing of push pins (28) varies depending on the size of the mold. In addition, the shape of the push pin can be changed, for example, it can take the shape of Figure 7.

도 7은 본 발명의 일 실시예에 따른 허니콤패널 제작용 금형에 적용할 수 있는 하중분산형 밀핀(29)의 사시도이다.Figure 7 is a perspective view of a load distribution type push pin 29 that can be applied to a mold for manufacturing a honeycomb panel according to an embodiment of the present invention.

도 7에 도시한 밀핀(29)은 하중분산 능력을 갖는다. '하중'은, 성형을 마친 허니컴코어부(41b)에 가해지는 밀핀의 압력을 의미한다. 하중을 분산함으로써 허니컴코어부에 밀핀 자국이 남지 않게 된다.The push pin 29 shown in FIG. 7 has a load dispersion ability. ‘Load’ refers to the pressure of the push pin applied to the formed honeycomb core portion 41b. By distributing the load, no push pin marks remain on the honeycomb core.

하중분산형 밀핀(29)은, 도 7에 도시한 바와 같이, 지지부(29a), 공간삽입부(29b), 다수의 하중분산부(29c)를 포함한다.As shown in FIG. 7, the load distribution push pin 29 includes a support portion 29a, a space insertion portion 29b, and a plurality of load distribution portions 29c.

지지부(29a)는, 상기한 공동경계부위(Z)의 연직 하부에 승강 가능하도록 배치된 수직의 환봉이다. 공간삽입부(29b)는, 지지부(29a)의 상부에 수직으로 고정된 직선형 부재로서, 지지부의 상승 시 제1성형공간(23b)으로 진입하며, 성형된 허니콤코어부(41b)를 상부로 밀어 올린다.The support portion 29a is a vertical round bar disposed so as to be capable of being raised and lowered at the vertical lower part of the above-described cavity boundary portion Z. The space insertion part 29b is a straight member fixed vertically to the upper part of the support part 29a, and enters the first molding space 23b when the support part rises, and moves the formed honeycomb core part 41b upward. push up

또한 하중분산부(29c)는, 공간삽입부(29b)의 상단부에 이어지며 수평으로 연장된 부재로서, 위에 설명한 바와 같이, 허니콤코어부(41b)에 가해지는 밀핀의 압력을 분산한다. 하중분산부(29c)는 120도 각도로 벌어져 있다. In addition, the load distribution portion 29c is a member that extends horizontally and continues to the upper end of the space insertion portion 29b, and distributes the pressure of the push pin applied to the honeycomb core portion 41b, as described above. The load distribution portion 29c is spread at an angle of 120 degrees.

이상, 본 발명을 구체적인 실시예를 통하여 상세하게 설명하였으나, 본 발명은 상기 실시예에 한정하지 않고, 본 발명의 기술적 사상의 범위 내에서 통상의 지식을 가진 자에 의하여 여러 가지 변형이 가능하다.Above, the present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications can be made by those skilled in the art within the scope of the technical idea of the present invention.

11:허니콤패널 13:외부판 15:허니콤코어
20:금형 21:하부금형 23a:육각돌기
23b:제1성형공간 23d:밀착면 25:상부금형
25a:제2성형공간 25f:바닥면 27:밀핀장치
28:밀핀 29:밀핀 29a:지지부
29b:공간삽입부 29c:하중분산부 41:본체
41a:베이스판부 41b:허니콤코어부 43:고정판
44:접착제 50:허니콤패널
Z:공동경계부위
11: Honeycomb panel 13: External plate 15: Honeycomb core
20: Mold 21: Lower mold 23a: Hexagonal protrusion
23b: First molding space 23d: Adhesion surface 25: Upper mold
25a: Second molding space 25f: Bottom surface 27: Push pin device
28: Push pin 29: Push pin 29a: Support part
29b: Space insertion part 29c: Load distribution part 41: Main body
41a: Base plate part 41b: Honeycomb core part 43: Fixing plate
44: Adhesive 50: Honeycomb panel
Z: joint border area

Claims (9)

판상의 베이스판부와, 베이스판부의 일면에 일체를 이루는 허니콤코어부로 구성된 본체를, 사출성형 방식으로 제작하는 본체성형단계와;
제작된 본체의 허니콤코어부에 고정판을 결합하는 고정판결합단계가 포함된,
허니콤패널 제작방법.
A body molding step of manufacturing a main body composed of a plate-shaped base plate portion and a honeycomb core portion integrated with one surface of the base plate portion by injection molding;
It includes a fixing plate combining step of joining the fixing plate to the honeycomb core part of the manufactured body,
How to make honeycomb panels.
제1항에 있어서,
상기 고정판결합단계는;
고정판과 본체 사이에 접착제를 도포하는 접착제도포공정과,
접착제의 도포가 완료된 후, 고정판을 허니콤코어부에 밀착시키는 밀착공정을 갖는,
허니콤패널 제작방법.
According to paragraph 1,
The fixing plate combining step is;
An adhesive application process of applying adhesive between the fixing plate and the main body,
After the application of the adhesive is completed, an adhesion process is performed to adhere the fixing plate to the honeycomb core portion.
How to make honeycomb panels.
판상의 베이스판부와, 베이스판부의 일면에 일체를 이루는 허니콤코어부로 이루어진 본체를, 사출성형 하기 위한 것으로서,
상기 허니콤코어부를 형성할 제1성형공간이 마련되어 있는 하부금형과;
하부금형의 상부에 위치하며, 하부금형과의 형합 시, 제1성형공간을 포함함과 아울러 베이스판부를 형성할 제2성형공간을 갖는 상부금형과;
본체 성형 완료 후, 제1성형공간으로 진입하여, 허니콤코어부를 제1성형공간 상부로 밀어 올리는 다수의 밀핀을 구비하는,
허니콤패널 제작용 금형.
For injection molding a main body consisting of a plate-shaped base plate portion and a honeycomb core portion integrated with one surface of the base plate portion,
a lower mold provided with a first molding space for forming the honeycomb core portion;
an upper mold located above the lower mold and including a first molding space when joined with the lower mold and having a second molding space to form a base plate portion;
After the main body molding is completed, it enters the first molding space and is equipped with a plurality of push pins to push the honeycomb core portion to the upper part of the first molding space,
Mold for manufacturing honeycomb panels.
제3항에 있어서,
상기 하부금형의 상부에는, 상부금형과의 형합 시, 상기 제2성형공간의 내부로 삽입되는 것으로서, 육각의 평면형상을 가지고 일정간격으로 이격된 다수의 육각돌기가 위치하며,
상기 제1성형공간은, 이웃하는 육각돌기 사이의 공간인,
허니콤패널 제작용 금형.
According to paragraph 3,
On the upper part of the lower mold, a plurality of hexagonal protrusions are positioned at regular intervals and have a hexagonal planar shape, which are inserted into the second molding space when molded with the upper mold,
The first molding space is the space between neighboring hexagonal protrusions,
Mold for manufacturing honeycomb panels.
제4항에 있어서,
상기 밀핀은, 상호 이웃하고 있는 세 개의 육각돌기 사이의 제1성형공간으로 진입하는,
허니콤패널 제작용 금형.
According to paragraph 4,
The push pin enters the first forming space between three adjacent hexagonal protrusions,
Mold for manufacturing honeycomb panels.
제5항에 있어서,
상기 밀핀은;
제1성형공간의 연직 하부에 승강 가능하도록 배치된 지지부와,
지지부의 상부에 고정되며 수직방향으로 연장되고, 지지부의 상승 시 제1성형공간으로 진입하는 공간삽입부와,
공간삽입부의 상단부에 이어지며 수평으로 연장되고, 허니콤코어부에 가해지는 하중을 분산하는 하중분산부를 포함하는,
허니콤패널 제작용 금형.
According to clause 5,
The push pin is;
A support part arranged to be able to be raised and lowered at the vertical lower part of the first molding space,
a space insertion part that is fixed to the upper part of the support part, extends vertically, and enters the first molding space when the support part rises;
Continuing to the upper end of the space insertion portion and extending horizontally, it includes a load distribution portion that distributes the load applied to the honeycomb core portion,
Mold for manufacturing honeycomb panels.
판상의 베이스판부, 베이스판부의 일면에 일체를 이루며 허니콤의 구조를 갖는 허니콤코어부로 이루어진 본체와;
상기 허니콤코어부에 고정되는 고정판을 포함하여 구성된,
허니콤패널.
A main body consisting of a plate-shaped base plate portion and a honeycomb core portion that is integrated with one surface of the base plate portion and has a honeycomb structure;
Consisting of a fixing plate fixed to the honeycomb core portion,
Honeycomb panel.
제7항에 있어서,
상기 본체는 사출 성형 방식으로 제작된,
허니콤패널.
In clause 7,
The body is manufactured by injection molding,
Honeycomb panel.
제7항에 있어서,
상기 고정판은, 허니콤코어부에 대해 접착제를 통해 접착 고정된,
허니콤패널.
In clause 7,
The fixing plate is adhesively fixed to the honeycomb core portion through adhesive,
Honeycomb panel.
KR1020220150861A 2022-11-11 2022-11-11 Honeycomb panel manufacturing method and Honeycomb panel manufactured by the method and Mold for manufacturing honeycomb panel Active KR102798117B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020220150861A KR102798117B1 (en) 2022-11-11 2022-11-11 Honeycomb panel manufacturing method and Honeycomb panel manufactured by the method and Mold for manufacturing honeycomb panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020220150861A KR102798117B1 (en) 2022-11-11 2022-11-11 Honeycomb panel manufacturing method and Honeycomb panel manufactured by the method and Mold for manufacturing honeycomb panel

Publications (2)

Publication Number Publication Date
KR20240069397A true KR20240069397A (en) 2024-05-20
KR102798117B1 KR102798117B1 (en) 2025-04-22

Family

ID=91282770

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020220150861A Active KR102798117B1 (en) 2022-11-11 2022-11-11 Honeycomb panel manufacturing method and Honeycomb panel manufactured by the method and Mold for manufacturing honeycomb panel

Country Status (1)

Country Link
KR (1) KR102798117B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120022212A (en) * 2010-09-01 2012-03-12 주식회사 에코아이 Floor block, and manufacturing method thereof
KR20180072376A (en) * 2016-12-21 2018-06-29 주식회사 이비아이 Insulator Panel And Apparatus And Method For Manufacturing the Panel
KR20180131229A (en) * 2017-05-31 2018-12-10 김문옥 Semi-incombustible fiber complex interior material and method of preparing the same
KR20190119767A (en) * 2018-04-13 2019-10-23 이대기 molding apparatus having double parting lines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120022212A (en) * 2010-09-01 2012-03-12 주식회사 에코아이 Floor block, and manufacturing method thereof
KR20180072376A (en) * 2016-12-21 2018-06-29 주식회사 이비아이 Insulator Panel And Apparatus And Method For Manufacturing the Panel
KR20180131229A (en) * 2017-05-31 2018-12-10 김문옥 Semi-incombustible fiber complex interior material and method of preparing the same
KR20190119767A (en) * 2018-04-13 2019-10-23 이대기 molding apparatus having double parting lines

Also Published As

Publication number Publication date
KR102798117B1 (en) 2025-04-22

Similar Documents

Publication Publication Date Title
EP0437375B1 (en) Method and apparatus for erecting a glass block wall
US6804061B2 (en) Resin erecting lens array and method for fabricating the same
JP2017196782A (en) Laminate structure
KR20240069397A (en) Honeycomb panel manufacturing method and Honeycomb panel manufactured by the method and Mold for manufacturing honeycomb panel
JPH06179448A (en) Plastic pallet and production thereof and metallic mold
JP7398081B2 (en) hollow structure
CN213530668U (en) Combined EPS (expandable polystyrene) automotive reverse formwork capable of being spliced quickly
US7721404B2 (en) Method of producing honeycomb structure
JP4033143B2 (en) Panel forming method and forming apparatus
CN215857814U (en) A draw-in groove board for assembled brick child mould prefabricated plate concatenation
US6438916B1 (en) Housing panel, method for manufacturing housing panel and house using panel
JP4148595B2 (en) Laminated rubber structure, method for producing laminated rubber structure, and jig used in the method
JP7582047B2 (en) Substrate with resin molded body and method for producing substrate with resin molded body
US20120040042A1 (en) Composite Mold with Expandable Boot
JPH0640276Y2 (en) Joint material for blocks
CN221022702U (en) Thermoplastic double-layer octagonal skeleton thermal-cladding plate structure
KR102129755B1 (en) Molds for seismatic isolation devices and their products
CN218314761U (en) A layering subassembly and pouring device for casting mold
JP7681296B2 (en) hollow structure
KR100739984B1 (en) Foam Filling Door
CN216031520U (en) A mould for preparing special-shaped concrete member
CN111287383B (en) Polyurethane sandwich panel and production method thereof
JPH084492Y2 (en) Architectural panel
KR20230087109A (en) In-corner frame for construction mold
CN119243949A (en) A high impact strength PVC gusset plate

Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20221111

PA0201 Request for examination
PG1501 Laying open of application
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20240802

Patent event code: PE09021S01D

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 20250124

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 20250415

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 20250415

End annual number: 3

Start annual number: 1

PG1601 Publication of registration