JPH10309729A - Heat insulating case and equipment and method for manufacturing the case - Google Patents
Heat insulating case and equipment and method for manufacturing the caseInfo
- Publication number
- JPH10309729A JPH10309729A JP10111787A JP11178798A JPH10309729A JP H10309729 A JPH10309729 A JP H10309729A JP 10111787 A JP10111787 A JP 10111787A JP 11178798 A JP11178798 A JP 11178798A JP H10309729 A JPH10309729 A JP H10309729A
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- insulating case
- steam
- case
- adhesive
- 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.)
- Pending
Links
Classifications
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0482—Details common to both closed and open types
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
- B29C44/3426—Heating by introducing steam in the mould
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
- F25D23/065—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は冷蔵庫及び冷蔵用シ
ョーケース等に使用する断熱ケースとその製造装置及び
方法に関し、より詳しくは断熱部材に樹脂物の補強部材
を接着して構造強度を補強した断熱ケースと、前記断熱
ケースを製造するための製造装置及び方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating case for use in refrigerators and refrigerated showcases, and an apparatus and a method for manufacturing the same. The present invention relates to a heat insulating case and a manufacturing apparatus and a method for manufacturing the heat insulating case.
【０００２】[0002]
【従来の技術】一般に、冷蔵庫の冷凍室及び冷蔵室には
蒸発器から発生された冷気が循環し、冷凍室及び冷蔵室
を断熱させるために断熱ケースが使われる。かかる断熱
ケースは、冷蔵庫の内箱や外箱と一体を成し、または内
箱と外箱との間に配置され、外部の熱が冷凍室及び冷蔵
室に伝えられて冷凍室及び冷蔵室の温度が上昇すること
を防止する。かかる断熱ケースはデパート、スーパーマ
ーケットなどの冷蔵用ショーケースにも広範囲に使われ
る。2. Description of the Related Art In general, cold air generated from an evaporator circulates in a freezer compartment and a refrigerator compartment of a refrigerator, and a heat insulating case is used to insulate the freezer compartment and the refrigerator compartment. Such a heat insulating case is formed integrally with the inner box or outer box of the refrigerator, or disposed between the inner box and the outer box. Prevent temperature from rising. Such insulated cases are also widely used for refrigerated showcases in department stores and supermarkets.
【０００３】かかる断熱ケースを製造する一つの方法と
して、内部に所定の空間が形成されるようにボックス形
の内部及び外部鉄板を組み立ててから密封し、前記内部
空間へウレタンを投入して発泡させる。しかし、前記方
法においては、外部及び内部鉄板を組み立てる過程及び
密封過程により製造過程が複雑になるだけでなく、断熱
ケース自体の重さが重いので、運搬が容易でないという
短所がある。また、この場合には断熱ケース自体が冷蔵
庫やショーケースの本体を成すことにより、断熱ケース
が損なわれた場合に修理が容易でない。As one method of manufacturing such a heat-insulating case, a box-shaped inner and outer iron plates are assembled so that a predetermined space is formed therein, and then sealed, and urethane is charged into the inner space to foam. . However, the above method has disadvantages in that not only the manufacturing process is complicated due to the process of assembling and sealing the outer and inner iron plates, but also that the heat insulating case itself is heavy, so that it is not easy to transport. Further, in this case, since the heat insulating case itself forms the main body of the refrigerator or the showcase, if the heat insulating case is damaged, repair is not easy.
【０００４】断熱ケースを製作する他の方法として、鉄
板の腐食を防止し、断熱ケースの重さを減少させるため
に、樹脂物で成型される内部ケースと外部鉄板とを組み
立て、前記外部鉄板と内部ケースとにより形成された内
部空間へウレタンを投入して発泡させる方法が使われ
る。しかし、この方法においても、断熱ケースの重さが
効率よく減少しないだけでなく、断熱ケース自体が冷蔵
庫などの本体を成すことにより修理が容易でないという
短所がある。また、構造が複雑で製造装置に使われる部
品が増加するという短所がある。As another method of manufacturing the heat insulating case, in order to prevent corrosion of the iron plate and reduce the weight of the heat insulating case, an inner case formed of a resin material and an outer iron plate are assembled, and the outer steel plate and the outer case are assembled. A method is used in which urethane is charged into the internal space formed by the internal case and foamed. However, this method also has disadvantages in that not only the weight of the heat insulating case is not efficiently reduced, but also the repair is not easy because the heat insulating case itself forms a main body such as a refrigerator. In addition, there is a disadvantage that the structure is complicated and the number of components used in the manufacturing apparatus increases.
【０００５】一方、重さが軽くて製造が容易であるとい
う理由で、ポリスチレン粒子を発泡させて形成される断
熱ケースを使用することもある。図６は前記従来の断熱
ケースを製造する装置を示す。前記製造装置はベース
（図示せず）に固定され、内部空洞６を有する固定型２
と、成型突起部４Ａを有し、横方向へ移動可能な移動型
４とを備える。[0005] On the other hand, an insulating case formed by expanding polystyrene particles may be used because it is light in weight and easy to manufacture. FIG. 6 shows an apparatus for manufacturing the conventional heat insulating case. The manufacturing apparatus is fixed to a base (not shown) and has a fixed mold 2 having an internal cavity 6.
And a movable mold 4 having a molded projection 4A and movable in the lateral direction.
【０００６】固定型２の上部壁には発泡ポリスチレン粒
子を投入するために、流入口２Ａが形成されている。流
入口２Ａを通じて投入された発泡ポリスチレン粒子はス
チームにより発泡される。An inlet 2A is formed in the upper wall of the fixed mold 2 for introducing expanded polystyrene particles. The expanded polystyrene particles introduced through the inlet 2A are foamed by steam.
【０００７】固定型２の側壁には内部空洞６へスチーム
を流入及び流出するために、多数の第１スチーム噴射孔
２Ｂが形成されていて、移動型４にはスチームが通過で
きるように多数の第２スチーム噴射孔４Ｂが形成されて
いる。[0007] A number of first steam injection holes 2B are formed in the side wall of the fixed mold 2 for flowing steam into and out of the internal cavity 6, and a large number of steam injection holes 2B are formed in the movable mold 4 so that steam can pass therethrough. A second steam injection hole 4B is formed.
【０００８】図７（Ａ）（Ｂ）及び図８（Ａ）（Ｂ）は
図６に示した断熱ケースの製造装置を用いて断熱ケース
を製造する過程を説明するための断面図である。図７
（Ａ）に示したように、固定型２から離隔している移動
型４は固定型２の内部空洞６に向けて横方向へ移動して
固定型２に結合する。図７（Ｂ）のように、移動型4 と
固定型２とにより形成された内部空間には、流入口２Ａ
を通じて発泡ポリスチレン粒子が投入される。次に図８
（Ａ）のように、スチームが固定型２の第１スチーム噴
射孔２Ｂを通じて前記内部空間へ噴射され、前記スチー
ムは投入された発泡ポリスチレン粒子の間を通過して移
動型4 の第２スチーム噴射孔４Ｂへ流出された後、移動
型4 の第２スチーム噴射孔４Ｂを通じて流入されて固定
型２の第１スチーム噴射孔２Ｂを通じて流出され、この
ような過程を繰り返す。前記スチームにより発泡ポリス
チレン粒子は発泡されて断熱ケース５を形成する。FIGS. 7A, 7B, 8A, and 8B are cross-sectional views for explaining a process of manufacturing a heat insulating case using the heat insulating case manufacturing apparatus shown in FIG. FIG.
As shown in (A), the movable mold 4 that is separated from the fixed mold 2 moves laterally toward the internal cavity 6 of the fixed mold 2 and joins to the fixed mold 2. As shown in FIG. 7 (B), the inner space formed by the movable mold 4 and the fixed mold 2 has an inlet 2A.
Through which foamed polystyrene particles are introduced. Next, FIG.
As shown in (A), steam is injected into the internal space through the first steam injection hole 2B of the fixed mold 2, and the steam passes between the injected expanded polystyrene particles, and the second steam injection of the movable mold 4 is performed. After flowing out into the hole 4B, it flows through the second steam injection hole 4B of the movable mold 4 and flows out through the first steam injection hole 2B of the fixed mold 2, and this process is repeated. The expanded polystyrene particles are expanded by the steam to form the heat insulating case 5.
【０００９】しかし、このように製造された断熱ケース
５は、重さは軽いが、構造強度が弱いので、それ自体の
みでは冷蔵庫やショーケース用に使用するには不適合で
ある。However, the heat-insulating case 5 manufactured as described above is light in weight, but has a low structural strength, and is not suitable for use in refrigerators and showcases by itself.
【００１０】図８（Ｂ）は図６の製造装置により製造さ
れた断熱ケースの応用例を示した断面図である。図８
（Ｂ）のように、断熱ケース５の構造強度を補強するた
めに、前記断熱ケース５に樹脂物で形成された別の内部
部材８が付着されて使われることもある。しかし、この
ように別の内部部材８を用いて断熱ケース５を補強する
場合は、内部部材８を付着するために別の工程が必要で
あるので面倒で、断熱ケース５の表面形状が複雑な場合
には内部部材８を付着するのが容易でないという短所が
ある。FIG. 8B is a sectional view showing an application example of the heat insulating case manufactured by the manufacturing apparatus of FIG. FIG.
As shown in (B), in order to reinforce the structural strength of the heat insulating case 5, another internal member 8 made of a resin material may be attached to the heat insulating case 5 and used. However, in the case where the heat insulating case 5 is reinforced by using another internal member 8 as described above, a separate process is required for attaching the internal member 8, which is troublesome, and the surface shape of the heat insulating case 5 is complicated. In this case, there is a disadvantage that it is not easy to attach the internal member 8.
【００１１】一方、“建築用ブロックを断熱する方法及
び装置、そして前記方法により製造されたブロック（Ｍ
ｅｔｈｏｄ ａｎｄ Ａｐｐａｒａｔｕｓ ｆｏｒ Ｉ
ｎｓ−ｕｌａｔｉｎｇ Ｂｕｉｌｄｉｎｇ Ｂｌｏｃｋ
ｓ ａｎｄ ｔｈｅ Ｂｌｏ−ｃｋｓ Ｐｒｏｄｕｃｅ
ｄ ｔｈｅｒｅｂｙ）”との名称でＲｉｃｈａｒｄＶ．
Ａｂｏｔｔに特許許与されたアメリカ特許第４、２７
５、５３９号には発泡ポリマー粒子を用いてコンクリー
トブロックの内部空洞に断熱層を成型する技術が開示さ
れている。前記Ａｂｏｔｔの特許において、前記断熱層
はポリスチレン粒子をスチームにより発泡させて成型さ
れ、内部空洞の内面に融合する。On the other hand, "a method and an apparatus for insulating a building block, and a block (M
ethod and Apparatus for I
ns-ulting Building Block
s and the Blo-cks Product
d thereby) "by Richard V.
US Patent No. 4,27, granted to Abbott
No. 5,539 discloses a technique for forming a heat insulating layer in an internal cavity of a concrete block using expanded polymer particles. In the Abott patent, the thermal insulation layer is molded by foaming polystyrene particles with steam and is fused to the inner surface of the internal cavity.
【００１２】[0012]
【発明が解決しようとする課題】従って、本発明は、上
述したような問題点を解決しようとするものであり、本
発明の第１目的は、重さが軽くて製造及び扱いが容易な
断熱ケースを提供することにある。本発明の第２目的
は、断熱ケースの断熱部材を補強部材と別途に製作し付
着しないで断熱部材の成型時に、補強部材に直接接着さ
せることができる断熱ケースの製造装置を提供すること
にある。本発明の第３目的は、断熱ケースの断熱部材を
補強部材と別途に製作し付着しないで断熱部材の成型時
に、補強部材に直接接着させることができる断熱ケース
の製造方法を提供することにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems, and a first object of the present invention is to provide a heat insulating material which is light in weight and easy to manufacture and handle. Is to provide a case. A second object of the present invention is to provide an apparatus for manufacturing a heat insulating case which can be directly bonded to the reinforcing member when the heat insulating member is molded without separately manufacturing and attaching the heat insulating member of the heat insulating case to the reinforcing member. . A third object of the present invention is to provide a method of manufacturing a heat insulating case that can be directly bonded to a reinforcing member during molding of the heat insulating member without separately manufacturing and attaching the heat insulating member of the heat insulating case to the reinforcing member. .
【００１３】[0013]
【課題を解決するための手段】本発明の第１目的を達成
するために、本発明は、冷蔵室及び冷凍室の本体の外部
鋼板の内側に形成して外部熱から断熱させる断熱ケース
において、前記断熱ケースの構造的強度を補強するため
の樹脂物と、前記樹脂物に接着剤で付着して発泡形成さ
れたポリスチレン断熱材とを含む断熱ケースを提供す
る。前記接着剤は非揮発性接着剤で、前記接着剤はホッ
トメルトである。前記本発明の第２目的を達成するため
に、本発明は、所定形状の内部空洞を有し、前記内部空
洞の内へスチームを噴射するためのスチーム流路が形成
された固定型と、前記固定型の内部空洞に挿入して断熱
ケースが形成される成型室を形成する移動型とによりな
る断熱ケースの製造装置において、前記固定型は前記内
部空洞の内へスチームを噴射するためのスチーム流路
と、前記成型室の内へ断熱材を流入するための流入口と
が形成され、前記移動型は樹脂物を挿入する成型突起部
と、移動型の内に形成されて冷却水が循環する冷却水流
路を有する断熱ケースの製造装置を提供する。前記固定
型は断熱材の内部までスチームを噴射するために、成型
室側へ突き出し形成される多数のスチーム噴射チューブ
を備える。前記スチーム噴射チューブは成型室側へ突出
された端に多数の貫通孔が形成される。前記本発明の第
３目的を達成するために、本発明は、内部に所定形状の
内部空洞を備え、前記内部空洞の内へスチームを噴射す
るためのスチーム流路が形成された固定型と、前記固定
型の内部空洞に挿入して断熱ケースが形成される成型室
を形成する移動型とによりなる断熱ケースの製造装置に
よって断熱ケースを製造する方法において、所定形状を
有する樹脂物に前記移動型の成型突起部を挿入する段階
と、前記樹脂物の表面に接着剤を噴射する段階と、前記
移動型を固定型の内部空洞側へ移動して断熱ケースが形
成される成型室を形成する段階と、前記成型室の内へポ
リスチレン粒子を流入する段階と、前記ポリスチレン粒
子が発泡された状態でスチーム流路へスチームが噴射さ
れ吸入される段階とを含む断熱ケースの製造方法を提供
する。前記接着剤は非揮発性接着剤であって、ホットメ
ルトを含む。本発明による断熱ケースの製造方法におい
て、噴射される前記スチームの温度は１３０〜１５０℃
である。In order to achieve the first object of the present invention, the present invention provides a heat insulating case formed inside an outer steel plate of a main body of a refrigerator compartment and a freezer compartment to insulate heat from external heat. Provided is a heat insulating case including a resin material for reinforcing the structural strength of the heat insulating case, and a polystyrene heat insulating material adhered to the resin material with an adhesive and foamed. The adhesive is a non-volatile adhesive, and the adhesive is a hot melt. In order to achieve the second object of the present invention, the present invention provides a fixed type having an internal cavity having a predetermined shape, and having a steam flow path for injecting steam into the internal cavity, In an apparatus for manufacturing a heat insulating case comprising a movable mold forming a molding chamber in which a heat insulating case is formed by being inserted into an internal cavity of a fixed mold, the fixed mold has a steam flow for injecting steam into the internal cavity. A passage and an inlet for insulating material to flow into the molding chamber are formed, and the movable mold is formed inside the movable mold with a molding protrusion for inserting a resin material, and cooling water is circulated. Provided is an apparatus for manufacturing a heat insulating case having a cooling water flow path. The fixed type includes a number of steam injection tubes protruding toward the molding chamber in order to inject steam to the inside of the heat insulating material. The steam injection tube has a number of through holes formed at an end protruding toward the molding chamber. In order to achieve the third object of the present invention, the present invention provides a fixed type having an internal cavity having a predetermined shape therein, and having a steam flow path for injecting steam into the internal cavity, A method for manufacturing a heat-insulating case by a manufacturing apparatus for a heat-insulating case comprising a movable mold forming a molding chamber in which the heat-insulating case is formed by being inserted into the internal cavity of the fixed mold, wherein the movable mold is formed on a resin object having a predetermined shape. Inserting the molding protrusions, spraying an adhesive on the surface of the resin material, and moving the movable mold toward the inner cavity of the fixed mold to form a molding chamber in which a heat insulating case is formed. And a step of injecting polystyrene particles into the molding chamber, and a step of injecting and sucking steam into a steam flow path in a state where the polystyrene particles are expanded. . The adhesive is a non-volatile adhesive and includes a hot melt. In the method for manufacturing a heat insulating case according to the present invention, the temperature of the steam to be injected is 130 to 150 ° C.
It is.
【００１４】[0014]
【作用】本発明による断熱ケースによると、前記樹脂物
で構成された前記補強部材により構造強度が補強され
る。また、断熱ケース自体の重さが重くないので運搬及
び修理時に扱いが容易である。本発明による断熱ケース
の製造装置及び方法によると、断熱ケースの前記断熱部
材を前記補強部材と別途に製作し付着させるのではな
く、前記断熱部材の成型時に前記補強部材に直接付着す
ることにより、製造過程が単純になる。また、前記断熱
部材の内部に凹凸が多数形成されて前記補強部材を付着
することが難しい場合にも、本発明の断熱ケースの製造
装置及び方法により前記断熱部材と前記補強部材とが固
く接着する。According to the heat insulation case of the present invention, the structural strength is reinforced by the reinforcing member made of the resin material. In addition, since the heat insulation case itself is not heavy, it is easy to handle during transportation and repair. According to the heat insulating case manufacturing apparatus and method according to the present invention, instead of separately manufacturing and attaching the heat insulating member of the heat insulating case to the reinforcing member, by directly attaching to the reinforcing member at the time of molding the heat insulating member, The manufacturing process is simplified. Further, even when a large number of irregularities are formed inside the heat insulating member and it is difficult to attach the reinforcing member, the heat insulating member and the reinforcing member are firmly bonded by the heat insulating case manufacturing apparatus and method of the present invention. .
【００１５】[0015]
【発明の実施の形態】以下、本発明の望ましい実施の形
態を添付図面に基づいて詳述する。図１は本発明による
断熱ケース１０を示す斜視図である。本発明の実施の形
態の断熱ケース１０は断熱ケース１０の強度を補強する
ための補強部材１２と、補強部材１２に接着され、発泡
ポリマー粒子を発泡させて形成する断熱部材１４を備え
る。Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing a heat insulating case 10 according to the present invention. The heat insulating case 10 according to the embodiment of the present invention includes a reinforcing member 12 for reinforcing the strength of the heat insulating case 10 and a heat insulating member 14 adhered to the reinforcing member 12 and formed by expanding foamed polymer particles.
【００１６】図１に示すように、補強部材１２と断熱部
材１４とは一側が開放されたボックス形を有する。断熱
部材１４は接着剤により補強部材１２の外面に接着す
る。本実施例において、補強部材１２は断熱部材１４よ
り相対的に厚さが薄い、補強部材１２の開放側のエッジ
は外向切曲されて前記断熱部材１４の開放側のエッジと
接着するフランジを形成する。As shown in FIG. 1, the reinforcing member 12 and the heat insulating member 14 have a box shape with one side opened. The heat insulating member 14 is bonded to the outer surface of the reinforcing member 12 with an adhesive. In this embodiment, the reinforcing member 12 is relatively thinner than the heat insulating member 14, and the open edge of the reinforcing member 12 is bent outward to form a flange that adheres to the open edge of the heat insulating member 14. I do.
【００１７】補強部材１２は樹脂物で成型され、断熱部
材１４に接着されて断熱部材１４の構造強度を補強する
役割を行う。また、前記発泡ポリマー粒子としてはポリ
スチレン粒子を使用し、発泡されて補強部材１２に接着
剤により接着する。The reinforcing member 12 is formed of a resin material and is adhered to the heat insulating member 14 so as to reinforce the structural strength of the heat insulating member 14. Further, polystyrene particles are used as the expanded polymer particles, which are expanded and adhere to the reinforcing member 12 with an adhesive.
【００１８】補強部材１２を断熱部材１４に効率よく接
着させるために、非揮発性接着剤を使用することが望ま
しい。揮発性接着剤を使用する場合は、接着剤を樹脂物
で構成された補強部材１２に塗布する時、補強部材１２
が溶ける現象が発生する。本実施の形態においては、前
記非揮発性接着剤としてホットメルトを使用する。In order to efficiently adhere the reinforcing member 12 to the heat insulating member 14, it is desirable to use a non-volatile adhesive. When a volatile adhesive is used, when the adhesive is applied to the reinforcing member 12 made of a resin material, the reinforcing member 12
Melting phenomenon occurs. In the present embodiment, a hot melt is used as the nonvolatile adhesive.
【００１９】本発明による断熱ケース１０によると、前
記樹脂物で構成された補強部材１２により、既存の発泡
ポリスチレンよりなる断熱部材のみに構成された場合に
比べて構造強度が補強される。また、補強部材１２は樹
脂物よりなっているので、重さがあまり重くないだけで
なく、断熱部材１４の厚さに比べて薄いので、断熱ケー
ス１０自体の重さが過度に増加せず、運搬及び修理時に
扱いが容易である。According to the heat-insulating case 10 of the present invention, the structural strength is reinforced by the reinforcing member 12 made of the resin material as compared with the case where the heat-insulating member is made of only the existing heat-insulating member made of expanded polystyrene. Further, since the reinforcing member 12 is made of a resin material, not only is the weight not too heavy but also thin compared to the thickness of the heat insulating member 14, so that the weight of the heat insulating case 10 itself does not excessively increase. Easy handling during transport and repair.
【００２０】図２は本発明の実施の形態の断熱ケースの
製造装置を示す。図２に示したように、本発明の実施の
形態の断熱ケースの製造装置はベース（図示せず）に固
定され、内部空洞３６を有する固定型（ｆｉｘｅｄ ｄ
ｉｅ）３０と、成型突起部４２を有して横方向へ移動可
能な移動型（ｍｏｖａｂｌｅ ｄｉｅ）４０とを備え
る。FIG. 2 shows an apparatus for manufacturing a heat insulating case according to an embodiment of the present invention. As shown in FIG. 2, the apparatus for manufacturing a heat insulating case according to the embodiment of the present invention is fixed to a base (not shown), and has a fixed d having an internal cavity 36.
IE) 30 and a movable die 40 having a molded projection 42 and capable of moving in the lateral direction.
【００２１】固定型３０の上部壁には、発泡されて断熱
部材１４を形成する発泡ポリマー粒子を内部空洞３６の
内へ投入するための流入口３２が形成される。流入口３
２を通じて投入された発泡ポリマー粒子はスチームによ
って発泡される。The upper wall of the fixed mold 30 is formed with an inlet 32 for introducing foamed polymer particles which are foamed to form the heat insulating member 14 into the internal cavity 36. Inlet 3
The expanded polymer particles introduced through 2 are expanded by steam.
【００２２】固定型３０の側壁には投入された発泡ポリ
マー粒子を発泡させるために、前記内部空洞３６へスチ
ームを供給するための多数のスチーム噴射孔３４が形成
される。本実施の形態において、固定型３０の側壁の厚
さは約２０ｍｍ程で、スチーム噴射孔３４はこの側壁を
貫通し形成され、発泡ポリマー粒子を均等に発泡させる
ために固定型３０の側壁の全体に亙って均等に分布す
る。A number of steam injection holes 34 for supplying steam to the internal cavity 36 are formed on the side wall of the fixed mold 30 in order to foam the injected foamed polymer particles. In the present embodiment, the thickness of the side wall of the fixed mold 30 is about 20 mm, and the steam injection hole 34 is formed to penetrate this side wall, and the entire side wall of the fixed mold 30 is formed in order to uniformly expand the foamed polymer particles. Distributed evenly over
【００２３】成型突起部４２にはスチームが前記成型室
の内へ噴射される時、冷却水が循環する冷却水流路４４
が形成される。冷却水流路４４を流れる冷却水により、
スチーム噴射時に加熱される補強部材１２が冷却されて
温度上昇による変形が防止される。A cooling water flow path 44 through which cooling water circulates when steam is injected into the molding chamber is formed in the molding protrusion 42.
Is formed. By the cooling water flowing through the cooling water flow path 44,
The reinforcing member 12 heated at the time of steam injection is cooled to prevent deformation due to temperature rise.
【００２４】図３（Ａ）は図２の断熱ケースの製造装置
の変形例を示す断面図で、図３（Ｂ）は図３（Ａ）の一
部を拡大して示した断面図である。図３（Ａ）及び図３
（Ｂ）の如く、スチーム噴射孔３４とは別途に、固定型
３０には多数のスチーム噴射チューブ４６が配置され
る。スチーム噴射チューブ４６は固定型３０を貫通して
内部空洞３６に突き出し、スチーム噴射チューブ４６の
内部にはスチームが流動するスチーム流路４６Ａが形成
される。スチーム噴射チューブ４６の突出された側の端
部は塞がっており、円周上にはスチームが通過して内部
空洞３６の内へ供給できるように、スチーム流路４６Ａ
と内部空洞３６とを連通させる多数の連通孔４６Ｂが形
成される。FIG. 3A is a cross-sectional view showing a modification of the apparatus for manufacturing a heat insulating case shown in FIG. 2, and FIG. 3B is a cross-sectional view showing a part of FIG. 3A in an enlarged manner. . FIG. 3 (A) and FIG.
As shown in (B), a number of steam injection tubes 46 are arranged in the fixed mold 30 separately from the steam injection holes 34. The steam injection tube 46 penetrates through the fixed mold 30 and protrudes into the internal cavity 36, and a steam flow path 46 </ b> A through which steam flows is formed inside the steam injection tube 46. The protruding end of the steam injection tube 46 is closed, and a steam flow path 46A is provided on the circumference so that the steam can pass therethrough and be supplied into the internal cavity 36.
A large number of communication holes 46 </ b> B are formed to allow the communication with the internal cavity 36.
【００２５】図４及び図５（Ａ）（Ｂ）は本発明による
製造装置を用いて断熱ケースを製造する過程を説明する
ための断面図である。先ず図４に示すように、移動型４
０の成型突起部４２に樹脂物を成型して製造した補強部
材１２を挿入して結合する。挿入された補強部材１２の
外面には接着剤をスプレーして塗布する。本実施例にお
いて、塗布された接着剤により樹脂物の補強部材１２が
溶ける現象を防止するために、前記接着剤として非揮発
性のホットメルトを使用する。次に、移動型４０を固定
型３０の内部空洞の内へ移動させ、補強部材１２の外面
と固定型３０の内面との間に断熱部材１４が成型される
成型室を形成する。次に、図５（Ａ）に示すように、固
定型３０の流入口３２を通じて前記成型室へ発泡ポリマ
ー粒子を投入して充填させる。前記発泡ポリマー粒子と
しては望ましくはポリスチレン粒子が使用される。次
に、図５（Ｂ）に示すように、スチーム熱により前記ポ
リマー粒子を発泡させて断熱部材１４を形成するため
に、固定型３０に形成されたスチーム噴射孔３４を通じ
て前記成型室の内へスチームを所定時間の間噴射し、以
後には再びスチーム噴射孔３４を通じてスチームを所定
時間の間吸入する。発泡過程の中に、このようなスチー
ムの噴射及び吸入が交代に行われる。FIGS. 4, 5A and 5B are cross-sectional views for explaining a process of manufacturing a heat insulating case using the manufacturing apparatus according to the present invention. First, as shown in FIG.
The reinforcing member 12 manufactured by molding a resin material is inserted into the molded protrusion 42 of No. 0 and joined. An adhesive is sprayed and applied to the outer surface of the inserted reinforcing member 12. In this embodiment, a non-volatile hot melt is used as the adhesive in order to prevent the phenomenon that the reinforcing member 12 made of a resin material is melted by the applied adhesive. Next, the movable mold 40 is moved into the internal cavity of the fixed mold 30 to form a molding chamber in which the heat insulating member 14 is molded between the outer surface of the reinforcing member 12 and the inner surface of the fixed mold 30. Next, as shown in FIG. 5 (A), the foamed polymer particles are charged into the molding chamber through the inlet 32 of the fixed mold 30 and filled. Preferably, polystyrene particles are used as the expanded polymer particles. Next, as shown in FIG. 5 (B), in order to expand the polymer particles by steam heat to form the heat insulating member 14, into the molding chamber through a steam injection hole 34 formed in the fixed mold 30. The steam is injected for a predetermined time, and thereafter, the steam is sucked again through the steam injection hole 34 for a predetermined time. During the foaming process, the injection and inhalation of such steam take place alternately.
【００２６】この時、前記噴射されるスチームの温度
は、ポリマー粒子が十分に発泡できるように、約１３０
℃乃至約１５０℃で設定する。このように、前記成型室
の内でスチームにより発泡ポリマー粒子が発泡されて断
熱部材１４が形成される。前記発泡された断熱部材１４
は、前記非揮発性接着剤により補強部材１２の外面に接
着する。At this time, the temperature of the injected steam is about 130 ° C. so that the polymer particles can be sufficiently foamed.
Set at about 150 ° C to about 150 ° C. Thus, the foamed polymer particles are foamed by the steam in the molding chamber, and the heat insulating member 14 is formed. The foamed heat insulating member 14
Is adhered to the outer surface of the reinforcing member 12 by the non-volatile adhesive.
【００２７】また、前記スチームの噴射及び吸入の過程
中には、補強部材１２がスチーム熱によって変形される
ことを防止するために、移動型４０に形成された冷却水
流路４４を通じて冷却水を循環させる。During the steam injection and suction process, the cooling water is circulated through the cooling water flow passage 44 formed in the movable mold 40 in order to prevent the reinforcing member 12 from being deformed by the steam heat. Let it.
【００２８】また、断熱部材１４の厚さすなわち、前記
成型室の幅が過度に広い場合は、スチームが発泡ポリマ
ー粒子に十分に供給されない場合に対応して、固定型３
０に配置された別のスチーム噴射チューブ４６を用いて
スチームを噴射する。When the thickness of the heat insulating member 14, that is, the width of the molding chamber is excessively large, the fixed mold 3 is used in response to the case where steam is not sufficiently supplied to the expanded polymer particles.
Steam is injected using another steam injection tube 46 arranged at zero.
【００２９】[0029]
【発明の効果】本発明による断熱ケースの製造装置及び
方法によると、断熱ケース１０の断熱部材１４を補強部
材１２と別途に製作し接着させるのではなく、断熱部材
１４の成型時に補強部材１２に直接接着することによ
り、製造過程が単純になる。また、断熱部材１４の内部
に凹凸が多数形成され補強部材１２を付着することが難
しい場合にも、前記断熱ケースの製造装置及び方法によ
って断熱部材１４と補強部材１２とが固く接着する。以
上では実施の形態を用いて本発明を説明したが、本発明
が前記実施の形態によって制限されるものではなく、本
発明の分野において通常の知識を持つ者が本発明の思想
及び範囲内で多様な変形や修正を加えることが可能であ
ることは明らかである。According to the apparatus and method for manufacturing the heat insulating case according to the present invention, the heat insulating member 14 of the heat insulating case 10 is not separately manufactured and bonded to the reinforcing member 12, but is attached to the reinforcing member 12 when the heat insulating member 14 is molded. Direct bonding simplifies the manufacturing process. Further, even when a large number of irregularities are formed inside the heat insulating member 14 and it is difficult to attach the reinforcing member 12, the heat insulating member 14 and the reinforcing member 12 are firmly bonded by the heat insulating case manufacturing apparatus and method. In the above, the present invention has been described using the embodiments. However, the present invention is not limited to the above embodiments, and those having ordinary knowledge in the field of the present invention fall within the spirit and scope of the present invention. Obviously, various changes and modifications can be made.
【図１】本発明による断熱ケースを示す斜視図である。FIG. 1 is a perspective view showing a heat insulating case according to the present invention.
【図２】本発明の実施の形態の断熱ケースの製造装置を
示す断面図である。FIG. 2 is a cross-sectional view showing a heat insulating case manufacturing apparatus according to the embodiment of the present invention.
【図３】図２の断熱ケースの製造装置の変形例を示す図
で、（Ａ）は断面図、（Ｂ）は（Ａ）図の一部を拡大し
て示す断面図である。3A and 3B are views showing a modification of the apparatus for manufacturing a heat insulating case of FIG. 2, wherein FIG. 3A is a cross-sectional view, and FIG. 3B is a cross-sectional view showing a part of FIG.
【図４】本発明による断熱ケースの製造装置を用いて断
熱ケースを製造する過程を説明するための断面図であ
る。FIG. 4 is a cross-sectional view for explaining a process of manufacturing a heat insulating case using the heat insulating case manufacturing apparatus according to the present invention.
【図５】本発明による断熱ケースの製造装置を用いて断
熱ケースを製造する過程を説明するための断面図であ
る。FIG. 5 is a cross-sectional view for explaining a process of manufacturing a heat-insulating case using the heat-insulating case manufacturing apparatus according to the present invention.
【図６】従来の断熱ケースの製造装置を示す断面図であ
る。FIG. 6 is a cross-sectional view showing a conventional apparatus for manufacturing a heat insulating case.
【図７】図１に示した断熱ケースの製造装置を用いて断
熱ケースを製造する過程を説明するための図である。FIG. 7 is a diagram for explaining a process of manufacturing a heat insulating case using the heat insulating case manufacturing apparatus shown in FIG. 1;
【図８】図６に示した断熱ケースの製造装置を用いて断
熱ケースを製造する過程を説明するための図で、（Ａ）
は図７の続き、（Ｂ）は応用例を示す図である。FIG. 8 is a view for explaining a process of manufacturing a heat insulating case using the manufacturing apparatus of a heat insulating case shown in FIG. 6;
FIG. 8B is a continuation of FIG. 7 and FIG.
１０…断熱ケース １２…補強部材 １４…断熱部材 ３０…固定型 ３２…流入口 ３４…スチーム噴射孔 ３６…内部空洞 ３８…スチーム噴射チューブ ４０…移動型 ４２…成型突起部 ４４…冷却水流路 DESCRIPTION OF SYMBOLS 10 ... Heat insulation case 12 ... Reinforcement member 14 ... Heat insulation member 30 ... Fixed type 32 ... Inflow port 34 ... Steam injection hole 36 ... Internal cavity 38 ... Steam injection tube 40 ... Moving type 42 ... Molding protrusion part 44 ... Cooling water flow path
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ // Ｂ２９Ｋ 25:00 105:04 (72)発明者 リー ジャエ ホー 大韓民国，キョンサンナム−ドウ，チャン ワン−シ，ギャミジャン−ドン，エルジー ドミトリー，イースト 312──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. 6 Identification symbol FI // B29K 25:00 105: 04 (72) Inventor Lee Jae Ho South Korea, Gyeongsangnam-do, Chang Wan-shi, Gamijan-dong , Elgy Dormitory, East 312
Claims (10)
側に形成して外部熱から断熱させる断熱ケースにおい
て、 前記断熱ケースの構造的強度を補強するための樹脂物
と、 前記樹脂物に接着剤で付着して発泡形成されたポリスチ
レン断熱材とを含むことを特徴とする断熱ケース。1. A heat insulation case formed inside an external steel plate of a main body of a refrigerator compartment and a freezer compartment to insulate heat from external heat, wherein a resin material for reinforcing the structural strength of the heat insulation case; A heat insulating case comprising: a polystyrene heat insulating material adhered with an adhesive and foamed.
を特徴とする請求項１に記載の断熱ケース。2. The heat insulating case according to claim 1, wherein the adhesive is a non-volatile adhesive.
特徴とする請求項２に記載の断熱ケース。3. The heat insulating case according to claim 2, wherein the adhesive is a hot melt.
洞の内へスチームを噴射するためのスチーム流路が形成
された固定型と、前記固定型の内部空洞に挿入して断熱
ケースが形成される成型室を形成する移動型とによりな
る断熱ケースの製造装置において、 前記固定型は前記内部空洞の内へスチームを噴射するた
めのスチーム流路と、前記成型室の内へ断熱材を流入す
るための流入口とが形成され、 前記移動型は樹脂物を挿入する成型突起部と、移動型の
内に形成されて冷却水が循環する冷却水流路とを有する
ことを特徴とする断熱ケースの製造装置。4. A fixed type having an internal cavity having a predetermined shape and having a steam flow path for injecting steam into the internal cavity, and a heat insulating case inserted into the fixed type internal cavity. In the apparatus for manufacturing a heat insulating case including a movable mold that forms a formed molding chamber, the fixed mold includes a steam flow path for injecting steam into the internal cavity, and a heat insulating material into the molding chamber. An inflow port for inflow is formed, and the movable mold has a molding protrusion for inserting a resin material, and a cooling water flow passage formed in the movable mold and circulating cooling water. Case manufacturing equipment.
を噴射するために、成型室側へ突き出し形成される多数
のスチーム噴射チューブを備えることを特徴とする請求
項４に記載の断熱ケースの製造装置。5. The heat-insulating case according to claim 4, wherein the fixed type includes a plurality of steam injection tubes protruding toward a molding chamber for injecting steam into the heat insulating material. Manufacturing equipment.
突出された端に多数の貫通孔が形成されることを特徴と
する請求項５に記載の断熱ケースの製造装置。6. The apparatus according to claim 5, wherein the steam injection tube has a plurality of through holes formed at an end protruding toward a molding chamber.
内部空洞の内へスチームを噴射するためのスチーム流路
が形成された固定型と、前記固定型の内部空洞に挿入し
て断熱ケースが形成される成型室を形成する移動型とに
よりなる断熱ケース製造装置によって断熱ケースを製造
する方法において、 所定形状を有する樹脂物に前記移動型の成型突起部を挿
入する段階と、 前記樹脂物の表面に接着剤を噴射する段階と、 前記移動型を固定型の内部空洞側へ移動して断熱ケース
が形成される成型室を形成する段階と、 前記成型室の内へポリスチレン粒子を流入する段階と、 前記ポリスチレン粒子が発泡された状態でスチーム流路
へスチームが噴射し吸入される段階とを含むことを特徴
とする断熱ケースの製造方法。7. A fixed type having an internal cavity having a predetermined shape therein and having a steam flow path for injecting steam into the internal cavity, and an insulating case inserted into the internal cavity of the fixed type. A method of manufacturing a heat insulating case by a heat insulating case manufacturing apparatus including a movable mold forming a molding chamber in which a molding chamber is formed, wherein the molding step of the movable mold is inserted into a resin material having a predetermined shape; Injecting an adhesive onto the surface of the mold; moving the movable mold toward the interior cavity of the fixed mold to form a molding chamber in which a heat insulating case is formed; and flowing polystyrene particles into the molding chamber. And a step of injecting steam into the steam flow path in a state where the polystyrene particles are expanded and sucking the steam.
徴とする請求項７に記載の断熱ケースの製造方法。8. The method according to claim 7, wherein the adhesive is a non-volatile adhesive.
ることを特徴とする請求項８に記載の断熱ケースの製造
方法。9. The method according to claim 8, wherein the non-volatile adhesive is a hot melt.
０〜１５０℃であることを特徴とする請求項８に記載の
断熱ケースの製造方法。10. The temperature of the steam to be injected is 13
The method according to claim 8, wherein the temperature is 0 to 150C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR14948/1997 | 1997-04-22 | ||
| KR1019970014948A KR100226059B1 (en) | 1997-04-22 | 1997-04-22 | Insulation case manufacturing apparatus and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10309729A true JPH10309729A (en) | 1998-11-24 |
Family
ID=19503541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10111787A Pending JPH10309729A (en) | 1997-04-22 | 1998-04-22 | Heat insulating case and equipment and method for manufacturing the case |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH10309729A (en) |
| KR (1) | KR100226059B1 (en) |
| CN (1) | CN1109870C (en) |
| ID (1) | ID20170A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101250808B1 (en) * | 2010-07-20 | 2013-04-04 | 주식회사 엠디코리아 | Mold for packing box |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1602381A (en) * | 1977-07-15 | 1981-11-11 | Shell Int Research | Cavity thermal insulation |
| US4275539A (en) * | 1979-12-10 | 1981-06-30 | Abbott Richard V Iii | Method and apparatus for insulating building blocks and the blocks produced thereby |
| JP3255789B2 (en) * | 1994-03-07 | 2002-02-12 | 松下冷機株式会社 | Insulated box |
-
1997
- 1997-04-22 KR KR1019970014948A patent/KR100226059B1/en not_active IP Right Cessation
-
1998
- 1998-04-17 ID IDP980579A patent/ID20170A/en unknown
- 1998-04-21 CN CN98106955A patent/CN1109870C/en not_active Expired - Fee Related
- 1998-04-22 JP JP10111787A patent/JPH10309729A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN1200475A (en) | 1998-12-02 |
| ID20170A (en) | 1998-10-22 |
| CN1109870C (en) | 2003-05-28 |
| KR100226059B1 (en) | 1999-10-15 |
| KR19980077713A (en) | 1998-11-16 |
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