JP5081561B2 - Manufacturing method and apparatus for heat insulation box - Google Patents
Manufacturing method and apparatus for heat insulation box Download PDFInfo
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- JP5081561B2 JP5081561B2 JP2007261003A JP2007261003A JP5081561B2 JP 5081561 B2 JP5081561 B2 JP 5081561B2 JP 2007261003 A JP2007261003 A JP 2007261003A JP 2007261003 A JP2007261003 A JP 2007261003A JP 5081561 B2 JP5081561 B2 JP 5081561B2
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Description
本発明は、業務用冷蔵・冷凍庫などに適用される断熱箱体の製造方法及び装置に関するものである。 The present invention relates to a method and an apparatus for manufacturing a heat insulating box applied to a commercial refrigeration / freezer.
業務用冷蔵・冷凍庫は、レストランや飲食店、あるいは冷凍車等で使用されるものであるため、多品種小ロットである。また、これら業務用冷蔵・冷凍庫に適用されている断熱箱体は、主にステンレス鋼板（例えばＳＵＳ３０４）などの金属製の外郭の内部に発泡断熱壁を成形することにより、内部に発泡断熱壁で囲まれた１又は複数の収容空間を構成した構造となっている。 Commercial refrigeration / freezers are used in restaurants, restaurants, refrigerated vehicles, etc., and are therefore a large variety of small lots. Moreover, the heat insulation box applied to these commercial refrigeration / freezers is mainly formed by forming a foam heat insulation wall inside a metal shell such as a stainless steel plate (for example, SUS304). It is the structure which comprised the enclosed 1 or several accommodating space.
このような断熱箱体の製造においては、多品種小ロットが原因となり、材料、ライン、部品、内型等の切替に多くの時間がかかるため、生産性が低いという問題があった。これらの要因の中で、材料はステンレス鋼板を予め前作業でプレカット等をすることで作業効率を上げることができ、またライン動線もコンピュータの導入により作業のタクト差を改善することができ、また部品については標準化によって作業工数を削減できるとともに、作業の慣れによる作業効率の向上を図ることができるようになっている。しかし、内型に関しては、品種毎にその形状の異なるものに切替える必要があるため、その切替作業の効率向上に限界があった。 In the manufacture of such a heat insulating box, there is a problem that productivity is low because it takes a lot of time to switch materials, lines, parts, inner molds, etc. due to a large variety of small lots. Among these factors, the material can improve the work efficiency by pre-cutting the stainless steel plate in the previous work in advance, and the line flow line can also improve the tact difference of the work by introducing a computer, In addition, the standardization of parts can reduce the work man-hours and improve work efficiency by getting used to the work. However, since it is necessary to switch the inner mold to one having a different shape for each type, there is a limit to improving the efficiency of the switching work.
断熱箱体の具体例を、図１１を参照して説明すると、断熱箱体１は、ステンレス鋼板製の外郭２の内面の全面が所要厚さに発泡断熱壁３（３ａ）で覆われるとともに、その内部空間が発泡断熱壁３（３ｂ）にて複数の収容空間４に分割されている。 A specific example of the heat insulation box will be described with reference to FIG. 11. The heat insulation box 1 has the entire inner surface of the stainless steel outer shell 2 covered with the foam heat insulation wall 3 (3 a) to the required thickness, The internal space is divided into a plurality of accommodating spaces 4 by the foam heat insulating wall 3 (3b).
このような断熱箱体を製造する際には、特許文献１〜特許文献３などに記載されているように、各収容空間に対応する形状の内型を外郭内に挿入配置し、外郭と内型の間に空間に発泡断熱材を注入発泡させて発泡断熱壁を成形している。なお、特許文献１には、外箱と内箱の間に、所定の２原液を混合した直後の混合原液を注入することで、キャビテーションの発生を抑えて発泡ウレタンの断熱材を形成することが記載されている。また、特許文献２には、箱体に中子を装着した状態で、プレヒート室及び発泡室で予熱した後、内部に発泡原液を注入して発泡断熱材を形成することが記載されている。また、特許文献３には、外箱と内箱の間に発泡ウレタンを注入する際に、外箱と外箱背面の開口を覆う背面板との間からの発泡ウレタンの漏れを、簡単に防止する構成が記載されている。
ところで、上記図１１に示したような断熱箱体１において、その外郭２の寸法は同一であっても、図１２（ａ）〜（ｄ）に示すように、内部の収容空間４の仕様、すなわち収容空間４の数と形状・大きさが互いに異なっている断熱箱体１がある。図１２（ａ）は、２つの小さな収容空間４（４ａ）と縦長の大きな収容空間４（４ｂ）を並列配置した仕様で、図１２（ｂ）は、１つの小さな収容空間４（４ａ）とその２方を囲むＬ字状の大きな収容空間４（４ｃ）を組み合わせた仕様で、図１２（ｃ）は、縦長の２つの大きな収容空間４（４ｂ）を並列配置した仕様で、図１２（ｄ）は、単一の大きな収容空間４（４ｄ）を有する仕様である。このような各仕様の断熱箱体１を製造するには、それぞれの仕様毎に
対応する内型を作製して保管しておき、製造時にその内型を取り出してきて発泡成形装置に設置する必要がある。さらに、外郭の寸法も種々のものがあって、それぞれに上記と同様に収容空間の仕様の異なるものがあるため、多量の内型が必要となる。したがって、上記のように品種毎に多量の内型を用意しておいて各品種の製造時に内型を切替える必要があるため、生産性の向上の阻害要因となっていた。
By the way, in the heat insulation box 1 as shown in the said FIG. 11, even if the dimension of the outer shell 2 is the same, as shown to FIG. 12 (a)-(d), the specification of the internal storage space 4, That is, there is a heat insulating box 1 in which the number, shape, and size of the accommodation spaces 4 are different from each other. FIG. 12A shows a specification in which two small accommodating spaces 4 (4a) and a vertically long accommodating space 4 (4b) are arranged in parallel. FIG. 12B shows one small accommodating space 4 (4a) and one small accommodating space 4 (4a). FIG. 12C is a specification in which two large L-shaped accommodating spaces 4 (4c) surrounding the two sides are combined. FIG. 12C is a specification in which two large elongated accommodating spaces 4 (4b) are arranged in parallel. d) is a specification having a single large accommodation space 4 (4d). In order to manufacture such a heat insulating box 1 of each specification, it is necessary to prepare and store an inner mold corresponding to each specification, take out the inner mold at the time of manufacture, and install it in the foam molding apparatus. There is. Furthermore, since there are various dimensions of the outer shell and each has different specifications of the accommodation space as described above, a large amount of inner mold is required. Therefore, as described above, it is necessary to prepare a large number of internal molds for each product type, and to switch the internal model at the time of manufacturing each product type, which has been an obstacle to productivity improvement.
本発明は、上記従来の問題点に鑑み、断熱箱体の内部に形成される収容空間の配置状態が異なっている各種仕様の断熱箱体を生産性良く製造することができる断熱箱体の製造方法及び装置を提供することを目的とする。 In view of the above-described conventional problems, the present invention provides a heat insulating box body that can manufacture heat insulating box bodies of various specifications having different arrangement states of housing spaces formed inside the heat insulating box body with high productivity. It is an object to provide a method and apparatus.
本発明の断熱箱体の製造方法は、外郭内に内型を配置し、外郭と内型の間の空間に断熱壁を発泡成形することで、外郭内に断熱壁で囲まれた１又は複数に分割された収容空間を形成する断熱箱体の製造方法であって、内型を、分割された収容空間のそれぞれに対応する形状と大きさの複数の中子治具と、中子治具間に製造すべき断熱箱体の収容空間の配置状態に応じて挿入配置される仕切治具とを組み合わせて構成し、この内型と外郭との間の空間に断熱壁を発泡成形し、所望の形状と大きさの収容空間を有する断熱箱体を製造するものである。 In the method for manufacturing a heat insulating box of the present invention, the inner mold is disposed in the outer shell, and the heat insulating wall is foam-molded in the space between the outer shell and the inner mold. a method of manufacturing a heat-insulating main body which forms a divided receiving space, the inner mold, a plurality of core jig corresponding shape and size to each of the split has been accommodating space, core Osamu It is configured by combining a partitioning jig that is inserted and arranged according to the arrangement state of the accommodation space of the heat insulation box to be manufactured between the tools, and foaming a heat insulation wall in the space between the inner mold and the outer shell, A heat insulating box having an accommodation space with a desired shape and size is manufactured.
この構成によると、分割された収容空間のそれぞれに対応する形状と大きさの複数の中子治具を備えた内型を基本とし、製造すべき断熱箱体の収容空間の配置状態に応じて所要の仕切治具を中子治具間に挿入配置することで、製造すべき断熱箱体に対応した内型を構成することができ、この内型を用いて外郭と内型の間の空間に断熱壁を発泡成形することで断熱箱体を製造できる。かくして、各種仕様の断熱箱体に対応する内型を、基本構成の内型に必要に応じて仕切治具を挿入配置するという簡単な作業によって構成できるため、各種仕様の断熱箱体を生産性良く製造することができる。 According to this structure, the inner mold having each a plurality of core jig corresponding shape and size to the split has been accommodating space as a basic, depending on the arrangement state of the accommodation space of the insulating box body to be produced By inserting and arranging the required partitioning jig between the core jigs, an inner mold corresponding to the heat insulating box to be manufactured can be configured. A heat insulating box can be manufactured by foaming a heat insulating wall in the space. In this way, the inner mold corresponding to the heat insulation box of various specifications can be configured by a simple operation of inserting and arranging a partitioning jig as required in the inner mold of the basic configuration. Can be manufactured well.
具体的には、中子治具は、下面形成部材と四周面形成部材を有するとともに、その四周面形成部材が成形時の規正位置から退入可能であり、仕切治具は、昇降可能に支持された下面形成部材と下面形成部材の昇降動作と連動して出退動作する両側面形成部材を有するとともに、下面形成部材が成形時の規正位置に位置規正されるとともにそれに連動して両側面形成部材が成形時の規正位置に位置規正されるものであり、外郭内に内型を挿入した後、中子治具の四周面形成部材を成形時の規正位置に突出させ、仕切治具の下面形成部材を成形時の規正位置に位置規正し、外郭と内型の間の空間に断熱壁を発泡成形すると、外郭内への内型の挿入配置及び形成後の型抜きを容易に作業性良く行うことができ、製造効率を向上できる。 Specifically, the core jig has a lower surface forming member and a four-surface forming member, and the four-surface forming member can be retracted from a setting position at the time of molding, and the partitioning jig is supported to be movable up and down. The lower surface forming member and the both side surface forming members that move in and out in conjunction with the raising and lowering operation of the lower surface forming member are located, and the lower surface forming member is positioned at the setting position during molding and the both side surfaces are formed in conjunction with it. The member is positioned at the molding position at the time of molding. After inserting the inner mold into the outer shell, the quadrilateral surface forming member of the core jig is projected to the molding position at the time of molding, and the lower surface of the partitioning jig If the forming member is positioned at the correct position during molding and the heat insulating wall is foamed in the space between the outer shell and the inner mold, the inner mold can be inserted into the outer shell and the mold can be easily removed after forming. It is possible to improve the production efficiency.
さらに、中子治具は、下面形成部材と四周面形成部材を有するとともに、その四周面形成部材が成形時の規正位置から退入可能であり、仕切治具は、昇降自在に支持された下面形成部材と下面形成部材の昇降動作と連動して出退動作する両側面形成部材を有するとともに、被押圧部が中子治具の四周面形成部材にて押圧されると下面形成部材が成形時の規正位置に位置規正されるとともにそれに連動して両側面形成部材が成形時の規正位置に位置規正されるものであり、外郭内に内型を挿入し、さらに外郭底面にて仕切治具の下面形成部材を成形時の規正位置の近傍まで押し上げた後、中子治具の四周面形成部材を成形時の規正位置に突出させ、その後外郭底面と内型下面との間に断熱壁の厚さに対応する空間が形成されるように内型に対して外郭を相対的に下降させ、外郭と内型の間の空間に断熱壁を発泡成形すると、上記と同様に外郭内への内型の挿入配置及び形成後の型抜きを容易に作業性良く行うことができ、かつ仕切治具はその下面形成部材を単に昇降自在に支持しただけで昇降駆動手段を備えていない簡単な構成で良いため、品種切替に伴って各種内型を構成する際に、単純に所要の仕切治具を内型に着脱するだけで、駆動源を接続したりする必要がないので、短時間に作業性良く着脱することができ、内型のコスト低下と作業性
の向上を図れるので、より好適である。
Further, the core jig has a lower surface forming member and a four-surface surface forming member, and the four-surface surface forming member can be retracted from a setting position at the time of molding, and the partitioning jig is a lower surface supported to be movable up and down. In addition to having both side surface forming members that move in and out in conjunction with the raising and lowering operations of the forming member and the lower surface forming member, when the pressed part is pressed by the four circumferential surface forming member of the core jig, the lower surface forming member is At the same time, the two side surface forming members are positioned at the correct position during molding, and the inner mold is inserted into the outer shell. After pushing up the lower surface forming member to the vicinity of the normalization position at the time of molding, the quadrilateral surface forming member of the core jig protrudes to the normalization position at the time of molding, and then the thickness of the heat insulating wall between the outer bottom surface and the inner mold lower surface For the inner mold so that a space corresponding to the height is formed When the outer shell is relatively lowered and the heat insulation wall is foam-molded in the space between the outer shell and the inner mold, the inner mold can be inserted into the outer shell and the mold can be easily removed from the outer shell in the same manner as described above. The partitioning jig can be a simple configuration that simply supports the lower surface forming member so as to be movable up and down and does not include a lifting drive means. By simply attaching / detaching the required partitioning jig to / from the inner mold, there is no need to connect the drive source, so it can be attached / detached in a short time with good workability, reducing the cost of the internal mold and improving workability. Therefore, it is more preferable.
また、本発明の断熱箱体の製造装置は、外郭内に内型を配置し、外郭と内型の間の空間に断熱壁を発泡成形することで、外郭内に断熱壁で囲まれた１又は複数に分割された収容空間を形成する断熱箱体の製造装置であって、内型を構成する治具として、分割された収容空間のそれぞれに対応する形状と大きさの複数の中子治具と、中子治具間に製造すべき断熱箱体の収容空間の配置状態に応じて挿入配置される仕切治具とを備え、製造する断熱箱体の収容空間の形状と大きさに応じて所要の仕切治具を挿入配置するようにしたものである。 The heat insulating box manufacturing apparatus according to the present invention includes an inner mold placed in an outer shell and foam-molded with a heat insulating wall in a space between the outer shell and the inner mold. or more in an apparatus for producing a heat-insulating main body which forms the divided accommodation space, as a jig constituting the inner mold, divided by a plurality of cores of the corresponding shape and size, each receiving space A jig and a partition jig inserted and arranged according to the arrangement state of the accommodation space of the heat insulation box to be manufactured between the core jigs, and the shape and size of the accommodation space of the heat insulation box to be manufactured Accordingly, a required partitioning jig is inserted and arranged.
この構成によると、上記断熱箱体の製造方法を実施して、各種仕様の断熱箱体を生産性良く製造することができる。 According to this structure, the manufacturing method of the said heat insulation box can be implemented, and the heat insulation box of various specifications can be manufactured with sufficient productivity.
また、中子治具が、下面形成部材と四周面形成部材を備えるとともに、その四周面形成部材が成形時の規正位置から退入可能に構成されていると、中子治具を備えた内型の外郭内への挿入配置及び断熱壁の成形後の型抜きを円滑にかつ容易に行うことができる。 Further, when the core jig includes a lower surface forming member and a four-surface forming member, and the four-surface forming member is configured to be retractable from a setting position during molding, It is possible to smoothly and easily perform insertion and placement into the outer shell of the mold and die cutting after the formation of the heat insulating wall.
また、仕切治具が、昇降可能に支持された下面形成部材と、下面形成部材の昇降動作と連動して出退動作する両側面形成部材とを備え、下面形成部材が成形時の規正位置に位置規正されるとそれに連動して両側面形成部材が成形時の規正位置に位置規正されると、下面形成部材を昇降させることで、仕切治具を設置した内型の外郭内への挿入配置及び断熱壁の成形後の型抜きを円滑にかつ容易に行うことができる。 Further, the partitioning jig includes a lower surface forming member supported so as to be movable up and down, and both side surface forming members that move in and out in conjunction with the lifting and lowering operation of the lower surface forming member, and the lower surface forming member is in a normal position during molding. When the position is regulated, the both side surface forming members are adjusted to the regulation position at the time of molding, and when the bottom surface forming member is moved up and down, it is inserted into the outer shape of the inner mold where the partitioning jig is installed. In addition, it is possible to smoothly and easily perform die cutting after forming the heat insulating wall.
また、仕切治具が、昇降自在に支持された下面形成部材と、下面形成部材の昇降動作と連動して出退動作する両側面形成部材と、中子治具の四周面形成部材にて押圧される被押圧部とを備え、成形時の規正位置に位置規正された中子治具の四周面形成部材にて被押圧部が押圧されると下面形成部材が成形時の規正位置に位置規正されるとともにそれに連動して両側面形成部材が成形時の規正位置に位置規正されるものとすると、下面形成部材を単に昇降自在に支持しただけで昇降駆動手段を設けない簡単な構成であり、かつ品種切替に伴って各種内型を構成する際に、単純に所要の仕切治具を内型に着脱するだけで、駆動源を接続したりする必要がないので、短時間に作業性良く着脱することができ、内型のコスト低下と作業性の向上を図れてより好適である。 Further, the partition jig is pressed by a lower surface forming member supported so as to be movable up and down, both side surface forming members that move in and out in conjunction with the lifting operation of the lower surface forming member, and the four circumferential surface forming members of the core jig. When the pressed part is pressed by the four circumferential surface forming member of the core jig that is positioned at the setting position during molding, the bottom surface forming member is positioned at the setting position during molding. In addition, in conjunction with it, if both side surface forming members are positioned at the normalizing position at the time of molding, it is a simple configuration that simply supports the lower surface forming member so that it can be raised and lowered, and does not provide lifting drive means, In addition, when configuring various types of internal molds when switching product types, simply attach and detach the required partitioning jig to the internal mold, and there is no need to connect a drive source, so it can be attached and removed in a short time with good workability. Reduce the cost of the inner mold and improve workability It is more preferable.
また、仕切治具が、下面形成部材の押し上げ動作時に作用する荷重をほぼ一定に軽減する定荷重ばねを備えていると、外郭底面にて仕切治具の下面形成部材を成形時の規正位置の近傍まで押し上げる際に、外郭底面に対して仕切治具の下面形成部材とそれに連動して出退動作する両側面形成部材の荷重がそのまま作用するのではなく、ほぼ一定に軽減されて作用するため、外郭底面に押圧痕が発生するのを防止することができる。 Further, if the partitioning jig is provided with a constant load spring that reduces the load acting during the push-up operation of the lower surface forming member substantially constant, the lower surface forming member of the partitioning jig is positioned at the normal position when molding the lower surface of the partitioning jig. When pushing up to the vicinity, the load on the lower surface forming member of the partitioning jig and the both side surface forming members that move in and out in conjunction with the outer bottom surface does not act as it is, but acts to be reduced almost constant. It is possible to prevent the occurrence of pressing marks on the outer bottom surface.
また、仕切治具を、下方に向けて幅寸法が小さくなる倒立台形状の支持枠の下部に、下面形成部材に連結されたガイド部材が昇降自在に支持されるとともに、ガイド部材の上端と支持枠の上部との間に定荷重ばねが介装され、支持枠の両側に設けれた傾斜ガイドに沿って昇降自在に側面形成部材が支持されるとともに側面形成部材の下端が下面形成部材上に摺動自在に支持された構造とすると、下面形成部材を軽く押し上げ又は押し上げ解除することで下面形成部材が円滑に昇降動作しかつそれに連動して円滑に側面形成部材を出退動作させることができて好適である。 In addition, the guide member connected to the lower surface forming member is supported in the lower part of the inverted trapezoidal support frame whose width dimension is reduced downward and the upper end of the guide member is supported. A constant load spring is interposed between the upper part of the frame, the side surface forming member is supported so as to be movable up and down along inclined guides provided on both sides of the support frame, and the lower end of the side surface forming member is on the lower surface forming member With a structure that is slidably supported, the lower surface forming member can be lifted and lowered smoothly by gently pushing up or releasing the lower surface forming member, and the side surface forming member can be smoothly moved back and forth. It is preferable.
また、被押圧部は、支持枠の両面から突出するように付勢された被押圧板を備え、支持枠に、被押圧板に固定されたカム板とこのカム板に係合可能にガイド部材の上端部に設けられたカム部材とから成る押し上げ機構が設けられていると、カム機構からなる簡単な構成の押し上げ機構にて被押圧板の押圧に連動して下面形成部材を確実に成形時の規正位置
に位置規正することができる。
The pressed portion includes a pressed plate that is urged so as to protrude from both surfaces of the support frame, and a cam plate fixed to the pressed plate on the support frame and a guide member engageable with the cam plate. If a push-up mechanism consisting of a cam member provided at the upper end of the plate is provided, the push-up mechanism with a simple structure consisting of a cam mechanism can be used to reliably mold the lower surface forming member in conjunction with the pressing of the pressed plate. The position can be adjusted to the set position.
本発明の断熱箱体の製造方法及び装置によれば、分割された収容空間のそれぞれに対応する形状と大きさの複数の中子治具を備えた内型を基本とし、製造すべき断熱箱体の収容空間の配置状態に応じて所要の仕切治具を中子治具間に挿入配置することで、製造すべき断熱箱体に対応した内型を構成することができ、この内型を用いて外郭と内型の間の空間に断熱壁を発泡成形することで断熱箱体を製造できる。かくして、各種仕様の断熱箱体に対応する内型を、基本構成の内型に仕切治具を挿入配置するという簡単な作業によって構成できるため、各種仕様の断熱箱体を生産性良く製造することができる。 According to the manufacturing method and apparatus of the insulating box body of the present invention, the inner mold having a plurality of core jig corresponding shape and size to each of the split has been accommodating space as the basic thermal insulation to be produced By inserting and arranging the required partitioning jig between the core jigs according to the arrangement state of the housing space of the box, an inner mold corresponding to the heat insulating box to be manufactured can be configured. A heat insulation box can be manufactured by foam-molding a heat insulation wall in the space between the outer shell and the inner mold. Thus, the inner mold corresponding to the heat insulation box body of various specifications can be configured by a simple operation of inserting and arranging the partitioning jig in the inner mold of the basic configuration, so that the heat insulation box body of various specifications can be manufactured with high productivity. Can do.
以下、本発明の断熱箱体の製造方法及び装置の一実施形態について、図１〜図１０を参照して説明する。 Hereinafter, one embodiment of the manufacturing method and apparatus of a heat insulation box of the present invention is described with reference to FIGS.
まず、本実施形態の断熱箱体１の製造方法における基本構想を、図１２（ａ）〜（ｄ）に示した各品種の断熱箱体を製造する例について、図１（ａ）〜（ｄ）と図２を参照して説明する。図１２（ａ）に示す断熱箱体１を製造する際には、図１（ａ）に示すように、小さい２つの収容空間４（４ａ）に対応する２つの中子治具６（Ｃ１）と縦長の大きな収容空間４（４ｂ）に対応する中子治具６（Ｃ２）とを内型固定部（図示せず）に取り付けて構成した基本構成の内型５を用い、外型７にて周面を支持された外郭２内に挿入配置し、外郭２と内型５の間の空間に発泡断熱材を注入発泡させて発泡断熱壁３を成形する。 First, the basic idea in the manufacturing method of the heat insulation box 1 of this embodiment is shown about the example which manufactures the heat insulation box of each kind shown in Drawing 12 (a)-(d). ) And FIG. When manufacturing the heat insulation box 1 shown to Fig.12 (a), as shown to Fig.1 (a), two core jig | tool 6 (C1) corresponding to the two small accommodation spaces 4 (4a) is shown. And an inner mold 5 having a basic configuration in which a core jig 6 (C2) corresponding to the vertically long accommodating space 4 (4b) is attached to an inner mold fixing portion (not shown), Then, the peripheral surface is inserted and arranged in the supported outer shell 2, and a foam heat insulating wall 3 is formed by injecting and foaming a foam heat insulating material into a space between the outer shell 2 and the inner mold 5.
図１２（ｂ）に示す断熱箱体１を製造する際には、図１（ｂ）に示すように、上記基本構成の内型５における一方の中子治具６（Ｃ１）と中子治具６（Ｃ２）との間に、それらの間の成形空間を埋める仕切治具８（Ｐ１）を挿入配置し、内型固定部（図示せず）に取り付けて構成した内型５を用い、上記と同様に発泡断熱壁３を成形する。また、図１２（ｃ）に示す断熱箱体１を製造する際には、図１（ｃ）に示すように、上記基本構成の内型５における２つの中子治具６（Ｃ１）の間にそれらの間の成形空間を埋める仕切治具８（Ｐ１）を挿入配置し、内型固定部（図示せず）に取り付けて構成した内型５を用い、上記と同様に発泡断熱壁３を成形する。また、図１２（ｄ）に示す断熱箱体１を製造する際には、図１（ｄ）に示すように、図１（ｃ）の状態からさらに、２つの中子治具６（Ｃ１）及び仕切治具８（Ｐ１）と中子治具６（Ｃ２）との間に、それらの間の成形空間を埋める仕切治具８（Ｐ２）を挿入配置し、内型固定部（図示せず）に取り付けて構成した内型５を用い、上記と同様に発泡断熱壁３を成形する。なお、仕切治具８（Ｐ２）は幅寸法が大きくなるので、両側から容易に挿入配置できるように２分割構成とされている。 When manufacturing the heat insulation box 1 shown in FIG. 12 (b), as shown in FIG. 1 (b), one core jig 6 (C1) and the core core in the inner mold 5 having the above-mentioned basic configuration. Between the tool 6 (C2), the partition jig 8 (P1) that fills the molding space between them is inserted and arranged, and the inner mold 5 that is configured to be attached to the inner mold fixing portion (not shown) is used. The foam heat insulation wall 3 is shape | molded similarly to the above. Moreover, when manufacturing the heat insulation box 1 shown in FIG.12 (c), as shown in FIG.1 (c), between the two core jig | tool 6 (C1) in the inner mold | type 5 of the said basic structure. A partition jig 8 (P1) that fills the molding space between them is inserted into the inner mold 5 and attached to an inner mold fixing part (not shown). Mold. Moreover, when manufacturing the heat insulation box 1 shown in FIG.12 (d), as shown in FIG.1 (d), two core jig | tool 6 (C1) is further added from the state of FIG.1 (c). The partition jig 8 (P2) for filling the molding space between them is inserted and arranged between the partition jig 8 (P1) and the core jig 6 (C2), and an inner mold fixing portion (not shown) The foam heat insulating wall 3 is formed in the same manner as described above using the inner mold 5 that is attached to the inner mold. Since the partition jig 8 (P2) has a large width dimension, the partition jig 8 (P2) has a two-part configuration so that it can be easily inserted and arranged from both sides.
かくして、この例においては、図２に示すように、２つの中子治具６（Ｃ１）と中子治具６（Ｃ２）と仕切治具８（Ｐ１）と仕切治具８（Ｐ２）を適宜に組み合わせて内型固定部（図示せず）に取り付けることで、図１２（ａ）〜（ｄ）の断熱箱体１を製造する内型５を構成することができ、この内型５を用いて外郭２と内型５の間の空間に発泡断熱壁３を発泡成形することで断熱箱体１を製造できる。このように各種仕様の断熱箱体１に対応する内型５を、基本構成の内型５に仕切治具８を挿入配置するという簡単な作業によって構成できるため、各種仕様の断熱箱体を生産性良く製造することができる。 Thus, in this example, as shown in FIG. 2, two core jigs 6 (C1), a core jig 6 (C2), a partition jig 8 (P1), and a partition jig 8 (P2) are provided. The inner mold 5 for manufacturing the heat insulating box 1 shown in FIGS. 12 (a) to 12 (d) can be configured by appropriately combining and attaching the inner mold 5 to the inner mold fixing portion (not shown). The heat insulation box 1 can be manufactured by foam-molding the foam heat insulation wall 3 in the space between the outer shell 2 and the inner mold 5. Since the inner mold 5 corresponding to the heat insulating box 1 of various specifications can be configured by a simple operation of inserting and arranging the partitioning jig 8 in the inner mold 5 of the basic configuration, the heat insulating box body of various specifications is produced. It can be manufactured with good performance.
以下、上記中子治具６（Ｃ１）、６（Ｃ２）に適用される中子治具６と仕切治具８（Ｐ１）、８（Ｐ２）に適用される仕切治具８の具体的な構成例と、それらを用いた場合の断熱箱体１の製造工程について、図３〜図１０を参照して説明する。 Hereinafter, the core jig 6 applied to the core jigs 6 (C1) and 6 (C2) and the partition jig 8 applied to the partition jigs 8 (P1) and 8 (P2) will be described in detail. A structural example and the manufacturing process of the heat insulation box 1 at the time of using them are demonstrated with reference to FIGS.
中子治具６は、図３に示すように、内型固定部（図示せず）に取付けられる取付ブロッ
ク９と、取付ブロック９の両側部から下方に延出された一対のガイドロッド１０と、ガイドロッド１０の下端に取付固定され、中子治具６の下面を形成する下面形成部材１１と、ガイドロッド１０に沿って昇降自在に支持された昇降ブロック１２と、取付ブロック９と昇降ブロック１２との間に介装されて昇降ブロック１２を昇降駆動するシリンダ装置１３と、中子治具６の四周面を形成する４枚の四周面形成部材と、取付ブロック９と各四周面形成部材１４の上端との間に介装されて四周面形成部材１４を成形時の規正位置と退入位置との間で出退するように揺動自在に支持する支持リンク機構１５と、各四周面形成部材１４と昇降ブロック１２との間に四棒平行リンク機構を構成して各四周面形成部材１４を平行移動させる上下一対の連結リンク１６とを備えている。
As shown in FIG. 3, the core jig 6 includes a mounting block 9 that is attached to an inner mold fixing portion (not shown), and a pair of guide rods 10 that extend downward from both sides of the mounting block 9. The lower surface forming member 11 which is fixedly attached to the lower end of the guide rod 10 and forms the lower surface of the core jig 6, the lifting block 12 supported so as to be movable up and down along the guide rod 10, the mounting block 9 and the lifting block 12, a cylinder device 13 that moves up and down the lifting block 12, four quadrilateral surface forming members that form the four peripheral surfaces of the core jig 6, an attachment block 9, and each four peripheral surface forming member. A support link mechanism 15 that is interposed between the upper end of 14 and supports the four-circumferential surface forming member 14 so as to be swingable so as to be retracted between a set position and a retracted position during molding, and each four-circumferential surface Between the forming member 14 and the lifting block 12 And a pair of upper and lower connecting links 16 for translating the four-bar parallel link mechanism each four sides surface forming member 14 to constitute a.
この構成の中子治具６において、シリンダ装置１３が収縮して昇降ブロック１２が上昇し、支持リンク機構１５のリンクが内向きに傾斜し、連結リンク１６が斜めに傾斜して各四周面形成部材１４が退入位置に後退している図３（ａ）に示す状態から、シリンダ装置１３を伸長動作させると、図３（ｂ）に示すように、昇降ブロック１２が下降し、それに伴って支持リンク機構１５のリンクが垂直に垂下し、連結リンク１６が水平となって、各四周面形成部材１４が成形時の所定の規正位置に突出された状態となる。 In the core jig 6 having this configuration, the cylinder device 13 contracts and the elevating block 12 is raised, the link of the support link mechanism 15 is inclined inward, and the connecting link 16 is inclined to form each of the four circumferential surfaces. When the cylinder device 13 is extended from the state shown in FIG. 3A in which the member 14 is retracted to the retracted position, the lifting block 12 is lowered as shown in FIG. The link of the support link mechanism 15 hangs vertically, the connection link 16 becomes horizontal, and each of the four-circumferential surface forming members 14 is projected to a predetermined setting position during molding.
仕切治具８は、図４に示すように、内型固定部２０における中子治具６の取付ブロック９の取付部間に取付可能な取付部材２１と、取付部材２１の下端に一体的に固定された、下方に向けて幅寸法が小さくなる倒立台形状の支持枠２２と、支持枠２２の下部に垂直に配設された一対の軸受２３と、一対の軸受にて昇降自在に支持されたガイド部材としての一対のガイド軸２４と、一対のガイド軸２４の下端に結合された、仕切治具８の下面を形成する下面形成部材２５と、支持枠２２の両側に昇降自在に配設されるとともに下端が下面形成部材２５上に摺動自在に支持された略直角三角形状の側面形成部材２６と、一対のガイド軸２４の上端と支持枠２２の上部との間に介装された定荷重ばね２７とを備え、昇降自在に支持された下面形成部材２５及び側面形成部材２６をそれらの自重に抗して略一定の比較的小さな荷重で上昇させることができるように構成されている。側面形成部材２６は、外側面が仕切治具８の側面を形成し、内側傾斜面２６ａに、支持枠２２の両側の傾斜側面の上部と下部に設けられた傾斜ガイドとしてのスライドガイド２８にて摺動自在に支持されるガイドレール２９が取付けられ、下面形成部材２５上に接する下面に摺動抵抗を小さくするローラ３０が配設されている。 As shown in FIG. 4, the partitioning jig 8 is integrally formed with an attachment member 21 that can be attached between the attachment parts of the attachment block 9 of the core jig 6 in the inner mold fixing part 20, and a lower end of the attachment member 21. An inverted trapezoidal support frame 22 that has a fixed width that decreases in the downward direction, a pair of bearings 23 that are vertically disposed below the support frame 22, and a pair of bearings that are supported to be raised and lowered. A pair of guide shafts 24 as guide members, a lower surface forming member 25 which is coupled to the lower ends of the pair of guide shafts 24 and forms the lower surface of the partitioning jig 8, and can be moved up and down on both sides of the support frame 22. The lower end is interposed between a side surface forming member 26 having a substantially right triangle shape slidably supported on the lower surface forming member 25, and the upper end of the pair of guide shafts 24 and the upper portion of the support frame 22. A bottom surface forming portion provided with a constant load spring 27 and supported so as to be movable up and down And it is configured so that it can be raised at a substantially constant relatively small load 25 and the side surface forming member 26 against their own weight. The side surface forming member 26 has an outer surface that forms the side surface of the partitioning jig 8, and a slide guide 28 as an inclined guide provided on the inner inclined surface 26 a on the upper and lower sides of the inclined side surfaces on both sides of the support frame 22. A guide rail 29 that is slidably supported is attached, and a roller 30 that reduces sliding resistance is disposed on the lower surface that is in contact with the lower surface forming member 25.
この構成の仕切治具８において、図４に仮想線で示すように、下面形成部材２５及び側面形成部材２６がその自重によって下方に移動している状態から、下面形成部材２５を押し上げると、下面形成部材２５が定荷重ばね２７にて支持されているので小さな荷重にて容易に上昇するとともに、それに連動して側面形成部材２６は上昇しながら側方に移動し、図４に実線で示すように、下面形成部材２５が成形時の規正位置に位置すると、側面形成部材２６も成形時の規正位置に位置することになる。 In the partitioning jig 8 having this configuration, when the lower surface forming member 25 is pushed up from the state in which the lower surface forming member 25 and the side surface forming member 26 are moved downward by their own weight, as shown by phantom lines in FIG. Since the forming member 25 is supported by the constant load spring 27, it easily rises with a small load, and the side forming member 26 moves sideways while moving upward, as shown by a solid line in FIG. In addition, when the lower surface forming member 25 is positioned at the setting position during molding, the side surface forming member 26 is also positioned at the setting position during molding.
また、支持枠２２の下部の中央部には被押圧部３１が配設されている。被押圧部３１は、中子治具６の四周面形成部材１４にて押圧されると、下面形成部材２５を成形時の規正位置に位置規正するものであり、その詳細構成を、図５を参照して説明する。被押圧部３１は、支持枠２２に取付けられたブラケット３２に、スライドピン３２ａを介して支持枠２２の両面から突出した位置と退入した位置との間で出退可能に装着されるとともに、ばね２４にて突出付勢された一対の被押圧板２３を備えている。これらの被押圧板３３の内面の中央部にカム板３５が固定されている。カム板３５は、その上部に上方に向けて外側に傾斜するカム面３５ａが設けられている。一方、一対のガイド軸２４の上部の適所に両ガイド軸２４、２４間にわたって受け部材３６が固定され、この受け部材３６の下面の中央部に、カム板３５に対応するカム部材３７が固定されている。カム部材３７の両カム板３５に対向する両端部には上方に向けて外側に傾斜するカム面３７ａが設けられ、これら
両カム板２５とカム部材３７にて押し上げ機構３８が構成されている。
In addition, a pressed portion 31 is disposed at the central portion of the lower portion of the support frame 22. When the pressed portion 31 is pressed by the four-surface forming member 14 of the core jig 6, the lower surface forming member 25 is positioned at a setting position at the time of molding. The description will be given with reference. The pressed portion 31 is attached to a bracket 32 attached to the support frame 22 so as to be able to be withdrawn and retracted between a position protruding from both sides of the support frame 22 and a position retracted via a slide pin 32a. A pair of pressed plates 23 protruding and urged by springs 24 are provided. A cam plate 35 is fixed to the central portion of the inner surface of these pressed plates 33. The cam plate 35 is provided with a cam surface 35a that is inclined outwardly upward at an upper portion thereof. On the other hand, a receiving member 36 is fixed at an appropriate position above the pair of guide shafts 24 between the guide shafts 24, 24, and a cam member 37 corresponding to the cam plate 35 is fixed at the center of the lower surface of the receiving member 36. ing. A cam surface 37 a that is inclined outward and upward is provided at both ends of the cam member 37 facing both the cam plates 35, and a push-up mechanism 38 is configured by these cam plates 25 and the cam member 37.
この被押圧部３１の構成において、一対のガイド軸２４、すなわち下面形成部材２５が成形時の規正位置の近傍まで押し上げられ、カム部材３７のカム面３７ａがカム板３５のカム面３５ａより上方に位置している状態で、中子治具６の四周面形成部材１４にて被押圧板３３が図５（ｂ）、（ｃ）に白抜矢印の如く押圧されると、カム板３５のカム面３５ａがカム部材３７のカム面３７ａに係合して、カム部材３７が矢印の如く押し上げられ、受け部材３６、ガイド軸２４を介して下面形成部材２５が引き上げられ、成形時の規正位置に位置規正されるとともにそれに連動して両側面形成部材２６が成形時の規正位置に位置規正される。 In the configuration of the pressed portion 31, the pair of guide shafts 24, that is, the lower surface forming member 25 is pushed up to the vicinity of the setting position at the time of molding, and the cam surface 37 a of the cam member 37 is above the cam surface 35 a of the cam plate 35. When the pressed plate 33 is pressed as shown by the white arrow in FIGS. 5B and 5C by the four circumferential surface forming members 14 of the core jig 6 in the positioned state, the cam of the cam plate 35 is The surface 35a engages with the cam surface 37a of the cam member 37, the cam member 37 is pushed up as shown by the arrow, and the lower surface forming member 25 is pulled up via the receiving member 36 and the guide shaft 24, and is brought into the correct position during molding. At the same time, the both side surface forming members 26 are positionally regulated at the molding position at the time of molding.
次に、以上の中子治具６と仕切治具８を設置した内型５を用いて所望の形状と大きさの収容空間４を有する断熱箱体１を製造する工程を、図６〜図１０を参照して説明する。 Next, the process of manufacturing the heat insulation box 1 having the housing space 4 having a desired shape and size using the inner mold 5 provided with the above core jig 6 and partitioning jig 8 is shown in FIGS. This will be described with reference to FIG.
発泡成形装置には、図６に示すように、製造すべき断熱箱体１の収容空間４に対応して、所要の中子治具６と中子治具６、６の間に挿入配置された仕切治具８とを内型固定部２０に吊り下げ状態で取付けて構成した内型５が設置されている。この状態の発泡成形装置に、搬送パレット４０上に設置された外郭２が搬送されて来る。そして、白抜矢印の如く、外郭２を内型５の直下に位置決めした後、上昇させる。 As shown in FIG. 6, the foam molding apparatus is inserted and disposed between the required core jig 6 and the core jigs 6, 6 corresponding to the accommodation space 4 of the heat insulating box 1 to be manufactured. An inner die 5 is provided which is constructed by attaching the partitioning jig 8 to the inner die fixing part 20 in a suspended state. The outer shell 2 installed on the transport pallet 40 is transported to the foam molding apparatus in this state. Then, as indicated by the white arrow, the outer shell 2 is positioned immediately below the inner mold 5 and then raised.
外郭２が上昇する間に、図７に示すように、仕切治具８における自重にて下方に移動している下面形成部材２５が外郭２の底面に当接し、その後も白抜矢印の如く下面形成部材２５を押し上げつつ上昇する。その際に、下面形成部材２５が定荷重ばね２７にて支持されているので、例えば３０Ｎ程度の小さな荷重が作用するだけでも容易に上昇し、そのため外郭２の底面に下面形成部材２５が当接したときにも打痕を生じる恐れがない。 While the outer shell 2 is raised, as shown in FIG. 7, the lower surface forming member 25 moving downward by its own weight in the partitioning jig 8 contacts the bottom surface of the outer shell 2, and thereafter the lower surface as indicated by the white arrow. The forming member 25 is raised while being pushed up. At this time, since the lower surface forming member 25 is supported by the constant load spring 27, the lower surface forming member 25 comes into contact with the bottom surface of the outer shell 2 because the lower surface forming member 25 easily rises even when a small load of about 30 N is applied. There is no risk of creating dents.
外郭２は、図８に示すように、仕切治具８の下面形成部材２５が成形時の規正位置の近傍位置まで上昇されると、その位置で一旦停止する。その後、中子治具６のシリンダ装置１３を伸長動作させて、四周面形成部材１４を白抜矢印の如く退入位置から成形時の規正位置に突出移動させる。これにより、図９に示すように、中子治具６の四周面形成部材１４が成形時の規正位置に位置規正されるとともに、四周面形成部材１４のこの動作によって仕切治具８の被押圧部３１の被押圧板３３が押圧され、上記のようにその下面形成部材２５が成形時の規正位置まで引き上げられて位置規正され、またそれに伴って仕切治具８の側面形成部材２６も成形時の規正位置に位置規正される。 As shown in FIG. 8, when the lower surface forming member 25 of the partitioning jig 8 is raised to a position in the vicinity of the setting position at the time of molding, the outer shell 2 temporarily stops at that position. Thereafter, the cylinder device 13 of the core jig 6 is extended, and the four-surface forming member 14 is projected and moved from the retracted position to the setting position during molding as indicated by the white arrow. As a result, as shown in FIG. 9, the quadrilateral surface forming member 14 of the core jig 6 is positioned at the setting position at the time of molding, and the operation of the quadrilateral surface forming member 14 causes the partition jig 8 to be pressed. The pressed plate 33 of the portion 31 is pressed, and the lower surface forming member 25 is pulled up to the positioning position at the time of molding as described above, and accordingly, the side surface forming member 26 of the partitioning jig 8 is also molded at the time of molding. The position is adjusted to the set position.
その後、図９に白抜矢印で示すように、外郭２を所定距離だけ下降させて、中子治具６の下面形成部材１１及び仕切治具８の下面形成部材２５と外郭２の底面との間に、形成すべき発泡断熱壁３の厚さ寸法に対応する間隔をあけた位置に位置決めして停止し、その状態で図１０に示すように、内型５と外郭２との間の空間に発泡断熱材を注入発泡させることで、所要の収容空間４を形成するように発泡断熱壁３が成形される。 Thereafter, as shown by the white arrow in FIG. 9, the outer shell 2 is lowered by a predetermined distance, and the lower surface forming member 11 of the core jig 6, the lower surface forming member 25 of the partitioning jig 8, and the bottom surface of the outer shell 2. In between, it is positioned and stopped at a position corresponding to the thickness dimension of the foam insulation wall 3 to be formed, and in this state, as shown in FIG. 10, the space between the inner mold 5 and the outer shell 2 The foam heat insulation wall 3 is formed so as to form the required accommodation space 4 by injecting and foaming the foam heat insulation material.
発泡断熱壁３が成形されると、中子治具６のシリンダ装置１３を収縮動作させて、四周面形成部材１４を成形時の規正位置から退入位置に移動させた後、外郭２を下降させることによって、型抜きが無理なく円滑に行われ、製造された断熱箱体１が搬送パレット４０上に載置されて発泡成形装置から取り出される。 When the foam heat insulating wall 3 is formed, the cylinder device 13 of the core jig 6 is contracted to move the four-surface forming member 14 from the normal position during molding to the retracted position, and then the outer shell 2 is lowered. By doing so, die cutting is performed smoothly without difficulty, and the manufactured heat insulation box 1 is placed on the transport pallet 40 and taken out from the foam molding apparatus.
以上のように本実施形態によれば、最多数に分割された収容空間４のそれぞれに対応する形状と大きさの複数の中子治具６を備えた内型５を基本とし、製造すべき断熱箱体１の収容空間４の配置状態に応じて所要の仕切治具８を中子治具６、６間に挿入配置することで、製造すべき断熱箱体１に対応した内型５を構成することができ、この内型５を用いて
外郭２と内型５の間の空間に発泡断熱壁３を発泡成形することで断熱箱体１を製造できる。かくして、各種仕様の断熱箱体１に対応する内型５を、基本構成の内型５に仕切治具８を挿入配置するという簡単な作業によって構成できるため、各種仕様の断熱箱体１を生産性良く製造することができる。
As described above, according to the present embodiment, the inner mold 5 having a plurality of core jigs 6 having a shape and a size corresponding to each of the housing spaces 4 divided into the largest number should be used as a basis. An inner mold 5 corresponding to the heat insulating box 1 to be manufactured is formed by inserting and arranging a required partitioning jig 8 between the core jigs 6 and 6 according to the arrangement state of the accommodation space 4 of the heat insulating box 1. The heat insulation box 1 can be manufactured by foam-molding the foam heat insulation wall 3 in the space between the outer shell 2 and the inner mold 5 using the inner mold 5. Thus, since the inner mold 5 corresponding to the heat insulating box 1 of various specifications can be configured by a simple operation of inserting and arranging the partitioning jig 8 in the inner mold 5 of the basic configuration, the heat insulating box body 1 of various specifications is produced. It can be manufactured with good performance.
また、外郭２内に内型５を挿入し、さらに外郭２の底面にて仕切治具８の下面形成部材２５を成形時の規正位置の近傍まで押し上げた後、中子治具６の四周面形成部材１４を成形時の規正位置に突出させることで、仕切治具８の下面形成部材２５及び側面形成部材２６を成形時の規正位置に位置規正し、その後外郭２の底面と内型５の下面との間に発泡断熱壁３の厚さに対応する空間が形成されるように内型５に対して外郭２を相対的に下降させ、外郭２と内型５の間の空間に発泡断熱壁３を発泡成形するようにしているので、外郭２内への内型５の挿入配置及び形成後の型抜きを容易に作業性良く行うことができ、かつ仕切治具８はその下面形成部材２５を単に昇降自在に支持しただけで昇降駆動手段を備えていない簡単な構成で良いため、品種切替に伴って各種内型５を構成する際に、単純に所要の仕切治具８を内型５に着脱するだけで、駆動源を接続したりする必要がないので、短時間に作業性良く着脱することができ、内型５のコスト低下と作業性の向上を図れるという顕著な効果が発揮される。 Further, after the inner mold 5 is inserted into the outer shell 2 and the lower surface forming member 25 of the partitioning jig 8 is pushed up to the vicinity of the setting position at the time of molding at the bottom surface of the outer shell 2, By projecting the forming member 14 to the setting position at the time of molding, the lower surface forming member 25 and the side surface forming member 26 of the partitioning jig 8 are positioned at the setting position at the time of molding, and then the bottom surface of the outer shell 2 and the inner mold 5 The outer shell 2 is lowered relative to the inner mold 5 so that a space corresponding to the thickness of the foam heat insulating wall 3 is formed between the lower surface and the foam insulating heat in the space between the outer shell 2 and the inner mold 5. Since the wall 3 is formed by foaming, the inner die 5 can be easily inserted into the outer shell 2 and the die can be removed after forming with good workability. Because a simple configuration that does not include lifting drive means is required, simply supporting 25 to be movable up and down. When configuring various types of internal molds 5 in accordance with product type switching, simply attaching / detaching the required partitioning jig 8 to / from the internal mold 5 and eliminating the need to connect a drive source makes it easy to work in a short time. It is possible to attach and detach well, and a remarkable effect is achieved that the cost of the inner mold 5 can be reduced and the workability can be improved.
なお、上記実施形態においては、下面形成部材２５を昇降自在に支持した仕切治具８の構成例を示したが、場合によっては仕切治具８にシリンダ装置や駆動モータと送りねじ機構等の駆動手段を内蔵させ、この下面形成部材２５の昇降動作と連動して両側面形成部材２６を出退動作するように構成し、外郭２内に内型５を挿入した後、中子治具６の四周面形成部材１４を成形時の規正位置に突出させるとともに、仕切治具８の下面形成部材２５を駆動手段にて成形時の規正位置に位置規正し、その状態で外郭２と内型５の間の空間に発泡断熱壁３を発泡成形するようにすることもできる。 In the above embodiment, the configuration example of the partitioning jig 8 that supports the lower surface forming member 25 so as to be movable up and down is shown. However, depending on the case, the partitioning jig 8 may be driven by a cylinder device, a drive motor, a feed screw mechanism, or the like. It is constructed so that both side surface forming members 26 are moved in and out in conjunction with the raising and lowering operation of the lower surface forming member 25, and the inner die 5 is inserted into the outer shell 2. The four-surface forming member 14 is protruded to the setting position at the time of molding, and the lower surface forming member 25 of the partitioning jig 8 is positioned to the setting position at the time of molding by the driving means, and in this state, the outer shell 2 and the inner mold 5 The foam heat insulating wall 3 can be foam-molded in the space between them.
本発明の断熱箱体の製造方法及び装置は、最多数に分割された収容空間のそれぞれに対応する形状と大きさの複数の中子治具を備えた内型を基本とし、製造すべき断熱箱体の収容空間の配置状態に応じて所要の仕切治具を中子治具間に挿入配置して製造すべき断熱箱体に対応した内型を構成することで、各種仕様の断熱箱体に対応する内型を簡単な作業によって構成できるため、各種仕様の断熱箱体を生産性良く製造することができ、多品種小ロットの断熱箱体の製造に好適に適用することができる。 The heat insulating box manufacturing method and apparatus according to the present invention is based on an inner mold having a plurality of core jigs having a shape and size corresponding to each of the housing spaces divided into the largest number, and heat insulation to be manufactured. Insulation box body of various specifications by configuring the inner mold corresponding to the heat insulation box body to be manufactured by inserting and arranging the required partitioning jig between the core jigs according to the arrangement state of the housing space of the box body Since the inner mold corresponding to the above can be configured by a simple operation, it is possible to manufacture a heat insulating box body of various specifications with high productivity, and it can be suitably applied to manufacture of a heat insulating box body of a large variety of small lots.
１ 断熱箱体
２ 外郭
３ 発泡断熱壁
４ 収容空間
５ 内型
６ 中子治具
８ 仕切治具
１１ 下面形成部材
１４ 四周面形成部材
２２ 支持枠
２４ ガイド軸（ガイド部材）
２５ 下面形成部材
２６ 側面形成部材
２７ 定荷重ばね
２８ スライドガイド（傾斜ガイド）
３１ 被押圧部
３３ 被押圧板
３５ カム板
３７ カム部材
３８ 押し上げ機構
DESCRIPTION OF SYMBOLS 1 Heat insulation box 2 Outer shell 3 Foam heat insulation wall 4 Accommodating space 5 Inner mold 6 Core jig 8 Partition jig 11 Lower surface forming member 14 Four circumferential surface forming member 22 Support frame 24 Guide shaft (guide member)
25 Lower surface forming member 26 Side surface forming member 27 Constant load spring 28 Slide guide (tilt guide)
31 Pressed portion 33 Pressed plate 35 Cam plate 37 Cam member 38 Push-up mechanism
Claims (10)
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| JP2007261003A JP5081561B2 (en) | 2007-10-04 | 2007-10-04 | Manufacturing method and apparatus for heat insulation box |
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| JP5081561B2 true JP5081561B2 (en) | 2012-11-28 |
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| JP5044357B2 (en) * | 2007-10-12 | 2012-10-10 | パナソニック株式会社 | Insulation box manufacturing jig |
| KR101571935B1 (en) * | 2013-12-18 | 2015-12-02 | 이수정 | molding jig for foaming refrigerator |
| JP6187870B2 (en) * | 2013-12-27 | 2017-08-30 | パナソニックＩｐマネジメント株式会社 | Pass box type heat insulation box manufacturing equipment |
| JP6213773B2 (en) * | 2013-12-27 | 2017-10-18 | パナソニックＩｐマネジメント株式会社 | Insulation box manufacturing equipment |
| JP6288453B2 (en) * | 2014-08-28 | 2018-03-07 | パナソニックＩｐマネジメント株式会社 | Insulation box manufacturing equipment |
| KR102005575B1 (en) * | 2018-06-05 | 2019-07-30 | 신금철 | Jig device for showcase with easy urethane foaming |
| KR102153503B1 (en) * | 2020-03-26 | 2020-09-10 | 조근행 | Electronic distributing box manufacturing method using moulding device and electronic distributing box as institutionalized by this method of manufacture |
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| JPS58182075A (en) * | 1982-04-19 | 1983-10-24 | 株式会社東芝 | Jig for manufacturing heat insulator |
| JPH03140784A (en) * | 1989-10-25 | 1991-06-14 | Hitachi Ltd | Box body for refrigerator and manufacture of the same |
| JP3257324B2 (en) * | 1995-02-21 | 2002-02-18 | 三菱電機株式会社 | Refrigerator inner box device |
| JP3243180B2 (en) * | 1996-06-24 | 2002-01-07 | 株式会社東芝 | Insulated box |
| JP3792921B2 (en) * | 1998-12-25 | 2006-07-05 | 株式会社東芝 | Refrigerated box manufacturing method |
| JP2004092958A (en) * | 2002-08-30 | 2004-03-25 | Hitachi Ltd | Method for manufacturing refrigerator |
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