JP2609008B2 - Vacuum insulation material core filling device - Google Patents
Vacuum insulation material core filling deviceInfo
- Publication number
- JP2609008B2 JP2609008B2 JP3124192A JP12419291A JP2609008B2 JP 2609008 B2 JP2609008 B2 JP 2609008B2 JP 3124192 A JP3124192 A JP 3124192A JP 12419291 A JP12419291 A JP 12419291A JP 2609008 B2 JP2609008 B2 JP 2609008B2
- Authority
- JP
- Japan
- Prior art keywords
- core material
- filling
- inner bag
- nozzle
- exhaust
- 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.)
- Expired - Fee Related
Links
Landscapes
- Refrigerator Housings (AREA)
- Basic Packing Technique (AREA)
- Thermal Insulation (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は冷蔵庫等に使用される
真空断熱材の芯材充填装置に関するもので、より詳しく
は芯材として使用されるパーライト等の粉末を通気性の
中袋に均一に、且つ緻密に充填する装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for filling a core material of a vacuum heat insulating material used in refrigerators and the like, and more particularly, to uniformly powdering perlite or the like used as a core material in a gas-permeable inner bag. And a device for densely filling.
【０００２】[0002]
【従来の技術】従来、真空断熱材の芯材として使用され
るパーライト等は乾燥し、クラフト紙等の通気性の中袋
に秤量・充填して封止後、平板上で人手により平坦にし
たものを機械によってプレスして密度を上げていた。2. Description of the Related Art Conventionally, perlite or the like used as a core material of a vacuum heat insulating material is dried, weighed and filled into a permeable bag such as kraft paper, sealed, and then flattened manually on a flat plate. The thing was pressed by a machine to increase the density.
【０００３】[0003]
【発明が解決しようとする課題】しかし、中袋に充填し
て圧縮する前のパーライト等の芯材の嵩は圧縮後の数倍
になるものがある。そのため、中袋は圧縮後の寸法に比
べ相当大きなものを準備しなければならず材料の無駄に
なる。そして、その影響は中袋材料の無駄に止どまら
ず、その中袋を収容する真空断熱材の外包材も大きく作
ることになる。更に外包材はポリエステルフィルムにア
ルミニュームを蒸着したものが一般に使用されており、
外包材を折り曲げると蒸着層に亀裂が入ってガスの透過
が大きくなるため通常は折り曲げずに使用する。そのた
め、芯材が詰まっていない外包材だけの部分が邪魔にな
って高性能断熱材として有効な芯材の詰まった部分を断
熱壁の隅まで使用できないと言う課題があった。However, the bulk of a core material such as perlite before filling and compressing the inner bag may be several times larger than that after compression. For this reason, the inner bag must be prepared in a size that is considerably larger than the size after compression, and the material is wasted. The effect is not limited to waste of the inner bag material, and the outer packaging material of the vacuum heat insulating material for accommodating the inner bag is made larger. Furthermore, as for the outer packaging material, a material obtained by evaporating aluminum on a polyester film is generally used,
When the outer packaging material is bent, the vapor deposition layer is cracked and gas permeability increases, so that it is usually used without bending. For this reason, there is a problem that a portion of only the outer packaging material not clogged with the core material is in the way, and the clogged portion of the core material, which is effective as a high-performance heat insulating material, cannot be used up to the corners of the heat insulating wall.
【０００４】また、人手による平坦化作業では完全に平
坦にできず部分的に凹部ができる。そのため、冷蔵庫等
の外箱や内箱に直接真空断熱材を張り付けて使用する
と、その凹部に沿って外箱や内箱がへこんで商品性を悪
くすると言う課題もあった。In addition, a flattening operation cannot be performed completely by hand, and a concave portion is partially formed. Therefore, when a vacuum heat insulating material is directly adhered to an outer box or an inner box of a refrigerator or the like and used, there is a problem that the outer box or the inner box is dented along the concave portion, thereby deteriorating the merchantability.
【０００５】更に、芯材のパーライト等の粉末は数ミク
ロン或はそれ以下の微粒子のため中袋に充填する際に飛
散し、作業環境を汚染して人体に悪影響を及ぼす等の課
題があった。Further, there is another problem that powder such as pearlite as a core material is scattered when filling the inner bag due to fine particles of several microns or less, contaminating the working environment and adversely affecting the human body. .
【０００６】本発明はこのような問題点を解決するため
になされたものであって、中袋や外包材の材料のロスを
少なくし、断熱壁の隅々まで真空断熱材を使用すること
ができ、更に外箱や内箱のへこみ及び作業環境の汚染も
防止できる真空断熱材の芯材充填装置を提供することを
目的とする。The present invention has been made in order to solve such problems, and it is possible to reduce the loss of the material of the inner bag and the outer packaging material and to use the vacuum heat insulating material at every corner of the heat insulating wall. It is an object of the present invention to provide an apparatus for filling a core material of a vacuum heat insulating material, which can prevent dents of an outer box and an inner box and contamination of a working environment.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明が採用する第１の手段は、真空断熱材の芯材
となるパーライト等の無機粉末や硬質ウレタンフォーム
の粉砕体のような有機粉末を紙や布等で作られた通気性
の中袋に均一に、且つ緻密に充填する芯材充填装置であ
って、この装置は、水平部の全面に多数の小径の通気孔
が設けられると共に上記水平部の外周近傍から略垂直に
立ち上がった壁に略等間隔に複数の小径の通気孔が設け
られ、その壁で排気通路の内壁を形成する中板と、平面
部の中央付近に一つ以上の大きな排気口が設けられると
共にこの平面部の外周近傍から略直角に立ち上がった壁
により上記排気通路の外壁を形成し、更に上記中板の水
平部と前記平面部とによって上記排気通路から上記排気
口に通じる排気トンネルを形成する下板とで二重の上方
開放の断面コ字状の下型を構成し、この下型に対向する
下面に縦横に上記排気通路に通じる狭長の排気溝と、中
央付近に上記芯材の充填口とが設けられた平板状の上型
と上記下型とで芯材充填装置を構成し、上記中板に芯材
充填ノズルの挿入口が穿孔された中袋が載置され、上記
下板の排気口から排気されて芯材充填装置内が減圧さ
れ、上記中袋が上型と中板に吸着されると上記中袋に設
けられた挿入口から芯材充填ノズルの先端を中袋の中ま
で挿入し、上記装置内を減圧しながら中袋に芯材を充填
するようにしたことを特徴とする。Means for Solving the Problems In order to achieve the above object, the first means adopted by the present invention is a method for producing a core material of a vacuum heat insulating material such as an inorganic powder such as pearlite or a crushed hard urethane foam. Is a core material filling device that uniformly and densely fills an air-permeable middle bag made of paper, cloth, etc., with a large number of small-diameter air holes throughout the horizontal portion. A plurality of small-diameter ventilation holes are provided at substantially equal intervals in a wall that is provided and rises substantially vertically from the vicinity of the outer periphery of the horizontal portion, and a middle plate that forms the inner wall of the exhaust passage with the wall, and a center near the plane portion One or more large exhaust ports are provided, and an outer wall of the exhaust passage is formed by a wall rising substantially at right angles from the vicinity of the outer periphery of the flat portion, and the exhaust portion is formed by the horizontal portion of the middle plate and the flat portion. Exhaust gas from the passage leading to the exhaust port A lower plate forming a flannel forms a double upper open lower die having a U-shaped cross section, a narrow elongate exhaust groove communicating with the exhaust passage vertically and horizontally on a lower surface facing the lower die, and a A core material filling device is constituted by a flat upper mold and a lower mold provided with a core material filling port, and an inner bag having a core material filling nozzle insertion hole perforated is placed on the middle plate. When the inside of the core material filling device is evacuated from the exhaust port of the lower plate and the inside of the core material filling device is depressurized, and the inner bag is adsorbed by the upper mold and the middle plate, the tip of the core material filling nozzle is inserted through the insertion port provided in the middle bag. Is inserted into the inner bag, and the core material is filled in the inner bag while the inside of the device is depressurized.
【０００８】また、上記目的を達成するために、本発明
が採用する第２の手段は、上記上型の充填口周辺下面の
上記中袋と接する部分にシール用パッキンを設けたこと
を特徴とする。In order to achieve the above object, a second means employed by the present invention is characterized in that a seal packing is provided on a portion of the lower surface around the filling port of the upper die which contacts the inner bag. I do.
【０００９】そして、上記目的を達成するために、本発
明が採用する第３の手段は、上記芯材充填ノズル先端の
吐出口を前記芯材充填ノズル先端近傍の側面に複数設け
たことを特徴とする。In order to achieve the above object, a third means employed in the present invention is characterized in that a plurality of discharge ports at the tip of the core material filling nozzle are provided on a side surface near the tip of the core material filling nozzle. And
【００１０】更に、上記目的を達成するために、本発明
が採用する第４の手段は、上記吐出口が先端近傍の側面
に設けられた芯材充填ノズルを芯材の充填時に回転させ
るようにしたことを特徴とする。Further, in order to achieve the above object, a fourth means adopted by the present invention is such that the discharge port rotates a core material filling nozzle provided on a side surface near the tip when filling the core material. It is characterized by having done.
【００１１】[0011]
【作用】上記構成において、全周に設けられた通気孔か
ら排気される装置内に通気性の中袋を載置し、この装置
内を減圧して前記中袋を前記装置の内面に吸着固定後、
中袋に芯材充填ノズルを挿入し、上記装置内を減圧しな
がら前記芯材充填ノズルから中袋に芯材が充填されるの
で、中袋や外包材の材料の無駄がなくなり、断熱壁の隅
まで真空断熱材が使用できる。また、中袋に充填された
芯材は均一で緻密且つ表面が平坦となり凹部が発生しな
い。そして、芯材の飛散も少ないため、作業環境の汚染
による人体への悪影響も軽減される。In the above construction, a gas permeable inner bag is placed in a device exhausted from vent holes provided on the entire periphery, and the inside of the device is decompressed to adsorb and fix the inner bag to the inner surface of the device. rear,
The core material filling nozzle is inserted into the middle bag, and the core material is filled into the middle bag from the core material filling nozzle while decompressing the inside of the device. Vacuum insulation can be used to every corner. Further, the core material filled in the inner bag is uniform, dense, and the surface is flat, so that no concave portion is generated. Since the scattering of the core material is small, the adverse effect on the human body due to the contamination of the working environment is reduced.
【００１２】そして、本発明に係る第２の芯材充填装置
においては、上型の充填口周辺下面の中袋と接する部分
にシール用パッキンが設けられ、このシール用パッキン
により中袋と上型との密着性の向上がなされるので、芯
材充填ノズルと中袋の該ノズル挿入口との位置合わせの
精度が緩和され、作業性が改善される。 また、本発明
に係る第３の芯材充填装置においては、芯材充填ノズル
先端の吐出口が該ノズル先端近傍の側面に複数設けられ
ているため、芯材の充填性が良くなり作業時間も短縮さ
れる。In the second core material filling apparatus according to the present invention, a seal packing is provided at a portion in contact with the middle bag on the lower surface around the filling port of the upper mold, and the middle bag and the upper mold are provided by the seal packing. Since the adhesion between the core material filling nozzle and the nozzle insertion opening of the inner bag is reduced, the workability is improved. Further, in the third core material filling apparatus according to the present invention, since a plurality of discharge ports at the tip of the core material filling nozzle are provided on the side surface near the nozzle tip, the filling property of the core material is improved, and the work time is increased. Be shortened.
【００１３】更に、本発明に係る第４の芯材充填装置に
おいては、吐出口が先端近傍の側面に設けられた芯材充
填ノズルが芯材の充填時に、該ノズルの軸心を中心に回
転するので、芯材の充填性が一層良くなり、作業時間も
更に短縮される。Further, in the fourth core material filling apparatus according to the present invention, when the core material filling nozzle provided with the discharge port on the side surface near the front end rotates around the axis of the nozzle when the core material is filled. Therefore, the filling property of the core material is further improved, and the working time is further reduced.
【００１４】[0014]
【実施例】図１は本発明の芯材充填装置の第１実施例を
示す要部平面図である。図２は図１のＡ−Ａ断面図であ
る。FIG. 1 is a plan view of a main part showing a first embodiment of a core material filling apparatus according to the present invention. FIG. 2 is a sectional view taken along line AA of FIG.
【００１５】図１及び図２において、１は芯材充填装
置、２は上方開放の断面コ字状の中板、３は上方開放の
断面コ字状の下板であり、上記中板２と下板３とで下型
４を構成している。上記下板３の四隅にはガイドピン５
が立設され、このガイドピン５に案内されて平板状の上
型６が載置されるようになっている。In FIGS. 1 and 2, 1 is a core material filling device, 2 is a middle plate having a U-shaped cross section open upward, and 3 is a lower plate having a U-shaped cross section open upward. The lower plate 3 and the lower plate 3 constitute a lower mold 4. Guide pins 5 are provided at the four corners of the lower plate 3.
And a flat upper die 6 is placed on the guide pins 5 while being guided by the guide pins 5.
【００１６】上記中板２の水平部２ａには多数の小径の
通気孔２ｂが設けられると共に、上記水平部２ａの外周
近傍から略垂直に立ち上がった壁２ｄには略等間隔に小
径の通気孔２ｅが設けられ、前記壁２ｄ外周の排気通路
７に連絡している。そして、下板３の平面部３ａには、
上記中板２を載置する外周のリブ３ｂと中央を横断する
リブ３ｃが設けられ、前記リブ３ｂには略等間隔に小径
の通気孔３ｄが、リブ３ｃには同じく略等間隔に小径の
通気孔３ｅが設けられている。更に上記平面部３ａの中
央付近に一つ以上の大きな排気口３ｆが設けられると共
に、この平面部３ａの外周近傍から略直角に立ち上がっ
た壁により、上記排気通路７の外壁３ｇを形成してい
る。この外壁３ｇは下型４の外殻も兼ねており、その上
面の溝には、上型６との気密を保持するためのＯリング
８が挿入されている。The horizontal portion 2a of the intermediate plate 2 is provided with a large number of small-diameter ventilation holes 2b, and the small-diameter ventilation holes 2d are raised substantially vertically from the vicinity of the outer periphery of the horizontal portion 2a. 2e is provided and communicates with the exhaust passage 7 on the outer periphery of the wall 2d. Then, on the flat portion 3a of the lower plate 3,
An outer peripheral rib 3b on which the intermediate plate 2 is placed and a rib 3c crossing the center are provided. The rib 3b has small-diameter ventilation holes 3d at substantially equal intervals, and the rib 3c has small-diameter air holes at substantially equal intervals. A vent 3e is provided. Further, one or more large exhaust ports 3f are provided in the vicinity of the center of the flat portion 3a, and an outer wall 3g of the exhaust passage 7 is formed by a wall which rises at a substantially right angle from the vicinity of the outer periphery of the flat portion 3a. . The outer wall 3g also serves as the outer shell of the lower mold 4, and an O-ring 8 for maintaining airtightness with the upper mold 6 is inserted into a groove on the upper surface thereof.
【００１７】そして、上記中板２と下板３とで排気トン
ネル１８が形成され、又上記中板２の外端近辺には排気
孔２ｆが略等間隔に設けられている。そのため、上記芯
材充填装置１内の空気は、上記通気孔２ｅと後述する排
気溝６ａから排気通路７→排気孔２ｆ→通気孔３ｄ→排
気トンネル１８の経路と、通気孔２ｂから直接排気トン
ネル１８に通じる二つの経路を経由して排気口３ｆから
真空ポンプ（図示せず）により排出される。そして、上
記上型６の下面には十字状に上記排気通路７に通じる細
長い排気溝６ａが設けられると共に、中央付近には真空
断熱材の芯材９となるパーライト粉末等の充填口１０が
設けられている。この充填口１０の上面には、芯材充填
ノズル１１を受けるためのノズル受部１２が固着されて
いる。An exhaust tunnel 18 is formed by the middle plate 2 and the lower plate 3, and exhaust holes 2f are provided near the outer end of the middle plate 2 at substantially equal intervals. Therefore, the air in the core material filling device 1 is directly discharged from the vent hole 2e and the exhaust groove 6a, which will be described later, to the exhaust passage 7 → the exhaust hole 2f → the vent hole 3d → the exhaust tunnel 18; The air is discharged from the exhaust port 3f via two paths leading to 18 by a vacuum pump (not shown). On the lower surface of the upper die 6, an elongated exhaust groove 6a communicating with the exhaust passage 7 is provided in a cross shape, and a filling port 10 of pearlite powder or the like serving as a core material 9 of a vacuum heat insulating material is provided near the center. Have been. A nozzle receiving portion 12 for receiving the core material filling nozzle 11 is fixed to the upper surface of the filling port 10.
【００１８】図３は本発明の芯材充填装置の第１実施例
に係るノズル受部の断面図である。図３において、ノズ
ル受部１２は、フレーム１３とノズルスライド用ベアリ
ング１４とで構成されている。そして、上記ノズル受部
１２はパッキン１６を介して上型６にボルト（図示せ
ず）により固定されている。一方、上記芯材充填ノズル
１１は、上記ノズルスライド用ベアリング１４により上
記ノズル受部１２に挿脱自在に係合され、上記ノズル１
１にはノズルシールパッキン１５が固着されている。１
７は芯材９を収容する紙や布等の通気性の材料で作られ
た中袋であり、１７ａは中袋１７に穿孔された芯材充填
ノズル１１の挿入口であり、材質により異なるが前記ノ
ズル１１の外径より約２〜３ｍｍ小さく作られている。FIG. 3 is a sectional view of a nozzle receiving portion according to a first embodiment of the core material filling apparatus of the present invention. In FIG. 3, the nozzle receiving portion 12 includes a frame 13 and a nozzle sliding bearing 14. The nozzle receiving portion 12 is fixed to the upper die 6 via a packing 16 by bolts (not shown). On the other hand, the core filling nozzle 11 is removably engaged with the nozzle receiving portion 12 by the nozzle sliding bearing 14, and the nozzle 1
A nozzle seal packing 15 is fixed to 1. 1
Reference numeral 7 denotes an inner bag made of a gas-permeable material such as paper or cloth for accommodating the core material 9, and reference numeral 17 a denotes an insertion opening of the core material filling nozzle 11 pierced in the inner bag 17. It is made about 2-3 mm smaller than the outer diameter of the nozzle 11.
【００１９】図４は本発明の第１実施例の芯材充填装置
上型の充填口付近を下方から見た要部拡大図である。FIG. 4 is an enlarged view of a main portion of the vicinity of the filling port of the upper die of the core material filling device according to the first embodiment of the present invention, as viewed from below.
【００２０】図４において、十字状の排気溝６ａは、上
記充填口１０の外周に設けられた環状の排気溝６ｂによ
って接続されている。In FIG. 4, the cross-shaped exhaust grooves 6a are connected by an annular exhaust groove 6b provided on the outer periphery of the filling port 10.
【００２１】次に上記実施例の動作について説明する。Next, the operation of the above embodiment will be described.
【００２２】図５は本発明の第１実施例の芯材充填装置
の中板に中袋を載置し、同装置上型に芯材充填ノズルを
挿入した状態を示す要部拡大図、図６は本発明の第１実
施例の芯材充填装置内の排気を行っている状態を示す要
部拡大図、図７は本発明の第１実施例の芯材充填装置の
内壁に吸着した中袋の挿入口に芯材充填ノズルを挿入し
た状態を示す図、図８は本発明の第１実施例の芯材充填
装置内の中袋に芯材充填ノズルから芯材を充填している
状態を示す図である。FIG. 5 is an enlarged view of a main part showing a state in which the inner bag is placed on the middle plate of the core material filling device according to the first embodiment of the present invention and the core material filling nozzle is inserted into the upper die of the device. FIG. 6 is an enlarged view of a main part of the core material filling device according to the first embodiment of the present invention, showing a state in which air is being exhausted. FIG. 7 is an enlarged view of the core material filling device according to the first embodiment of the present invention. FIG. 8 is a view showing a state in which a core material filling nozzle is inserted into an insertion opening of a bag, and FIG. 8 is a state in which a core material is filled from a core material filling nozzle into a middle bag in a core material filling device according to the first embodiment of the present invention. FIG.
【００２３】図５において、上記芯材充填装置の中板２
の水平部２ａに外周がシールされた中袋１７を少し膨ら
ませた状態で挿入口１７ａが上記上型６の充填口１０と
略合致するように決められた位置に載置し、下型４に設
けられたガイドピン５を案内にして上型６を載せ、更に
上型６に設けられた上記ノズル受部１２に上記芯材充填
ノズル１１を、このノズル１１の先端が上記上型６の下
面の位置にくるまで挿入する。In FIG. 5, a middle plate 2 of the above-mentioned core material filling device is shown.
The insertion opening 17a is placed at a position determined so as to substantially coincide with the filling opening 10 of the upper die 6 while the inner bag 17 whose outer periphery is sealed to the horizontal portion 2a is slightly inflated. The upper die 6 is placed with the guide pin 5 provided as a guide, and the core material filling nozzle 11 is further mounted on the nozzle receiving portion 12 provided on the upper die 6, and the tip of the nozzle 11 has a lower surface of the upper die 6. Insert until it comes to the position.
【００２４】次に、下型６に設けられた上記排気口３ｆ
から真空ポンプ（図示せず）で排気を開始すると、この
芯材充填装置１は上記ノズル１１自身の漏れ以外はＯリ
ング８によって気密になされており、且つこのノズル１
１からの漏洩量は上記真空ポンプの排気量に比べ非常に
少ないため、上記芯材充填装置１内は減圧され、上記中
袋１７内の空気が膨張し、更に上型６の排気溝６ａと中
板２の通気孔２ｂ等から排気され、中袋１７は上型６と
中板の水平部２ａに吸着される。Next, the exhaust port 3f provided in the lower mold 6
When the evacuation is started by a vacuum pump (not shown), the core material filling apparatus 1 is air-tight by an O-ring 8 except for the leakage of the nozzle 11 itself.
1 is very small as compared with the exhaust amount of the vacuum pump, the pressure in the core material filling device 1 is reduced, the air in the inner bag 17 expands, and the exhaust groove 6a of the upper die 6 The air is exhausted from the ventilation holes 2b of the middle plate 2 and the like, and the middle bag 17 is sucked by the upper die 6 and the horizontal portion 2a of the middle plate.
【００２５】次に、図７に示すように、中袋１７は上型
６や水平部２ａに吸着されて簡単に内側に変形しないの
で、上記ノズル１１の先端で中袋の挿入口１７ａを押し
広げるようにして、上記ノズル１１に固着されたノズル
シールパッキン１５の底面が上記フレーム１３の天面に
当接するまで上記ノズル１１を下降させる。従って、ノ
ズル１１と中袋の挿入口１７ａとの間は密着しているの
で芯材９の充填に際し、芯材９が中袋１７の外に殆ど漏
れることがない。Next, as shown in FIG. 7, the inner bag 17 is adsorbed by the upper mold 6 and the horizontal portion 2a and does not easily deform inward. The nozzle 11 is lowered until the bottom surface of the nozzle seal packing 15 fixed to the nozzle 11 comes into contact with the top surface of the frame 13. Therefore, since the nozzle 11 is in close contact with the insertion opening 17a of the inner bag, the core material 9 hardly leaks out of the inner bag 17 when the core material 9 is filled.
【００２６】そして、図８に示すように、芯材充填装置
１内の排気を続けながら上記ノズル１１から芯材９を充
填する。すると、充填された芯材９は、充填される芯材
９に含まれる空気の流れに乗って中袋１７に吸い寄せら
れる。中袋１７に吸い寄せられた芯材９の厚みが小さい
程、その部分の吸引力は強く作用するため、芯材９の少
ない部分へ後から充填された芯材９が優先的に充填され
て行くので、中袋１７の芯材が少ない部分から芯材９が
均一に充填される。そして、中袋１７に芯材９の充填が
終了するとノズル１１を抜き取り、芯材９の詰まった中
袋１７を芯材充填装置１から取り出し、ノズル先端部分
の不足する芯材９を補充後挿入口１７ａを紙テープ等で
シールする。Then, as shown in FIG. 8, the core material 9 is filled from the nozzle 11 while the exhaust of the core material filling device 1 is continued. Then, the filled core material 9 is sucked into the inner bag 17 on the flow of air contained in the filled core material 9. As the thickness of the core material 9 attracted to the inner bag 17 is smaller, the suction force of the portion acts more strongly, so that the core material 9 filled later is preferentially filled into the portion where the core material 9 is small. Therefore, the core material 9 is uniformly filled from the portion of the inner bag 17 where the core material is small. When the filling of the core material 9 into the inner bag 17 is completed, the nozzle 11 is withdrawn, the inner bag 17 filled with the core material 9 is taken out of the core material filling device 1, and the core material 9 with the insufficient nozzle tip portion is inserted and inserted. The mouth 17a is sealed with a paper tape or the like.
【００２７】次に、第２の実施例について図９と図１０
を用いて説明する。図９は本発明の芯材充填装置の第２
実施例に係るノズル受部付近の断面図、図１０は本発明
の第２実施例に係る芯材充填装置上型の充填口付近を下
方から見た要部拡大図である。Next, a second embodiment will be described with reference to FIGS.
This will be described with reference to FIG. FIG. 9 shows the second embodiment of the core material filling apparatus of the present invention.
FIG. 10 is a cross-sectional view of the vicinity of a nozzle receiving portion according to the embodiment, and FIG. 10 is an enlarged view of a main portion of the vicinity of a filling port of an upper die of a core material filling device according to a second embodiment of the present invention as viewed from below.
【００２８】図９及び図１０に示すように、上記上型６
下面の充填口１０と環状の排気溝６ｂとの間及び上記環
状の排気溝６ｂの外周には十字状の排気溝６ａの部分を
除いて環状のシール用パッキン１９が設けられている。
従って、中袋１７は前記シール用パッキン１９を介して
より強固に上型に吸着されるので、挿入口１７ａと芯材
充填ノズル１１との間に隙間が少し有っても芯材９が漏
れないため、中袋１７を中板２に載置するときの精度が
緩和され、作業性が改善される。As shown in FIG. 9 and FIG.
An annular sealing gasket 19 is provided between the filling port 10 on the lower surface and the annular exhaust groove 6b and on the outer periphery of the annular exhaust groove 6b except for the cross-shaped exhaust groove 6a.
Therefore, since the inner bag 17 is more firmly adsorbed to the upper mold via the sealing gasket 19, the core material 9 leaks even if there is a small gap between the insertion port 17a and the core material filling nozzle 11. Therefore, the accuracy when placing the middle bag 17 on the middle plate 2 is relaxed, and workability is improved.
【００２９】次に、第３の実施例について図１１を用い
て説明する。図１１は本発明の第３実施例に係る芯材充
填装置の充填口付近の拡大断面図である。Next, a third embodiment will be described with reference to FIG. FIG. 11 is an enlarged cross-sectional view near the filling port of the core material filling apparatus according to the third embodiment of the present invention.
【００３０】図１１において、芯材充填ノズル１１の先
端は別部材２０で閉塞され、このノズル１１先端近傍の
側面に複数の吐出口１１ａが穿かれている。従って、芯
材９がノズル１１先端直下に堆積することなく横方向に
広く拡散されるので、芯材の充填性が改善され、作業時
間が短縮される。In FIG. 11, the tip of the core material filling nozzle 11 is closed by another member 20, and a plurality of discharge ports 11a are formed in a side surface near the tip of the nozzle 11. Therefore, the core material 9 is diffused in the lateral direction without being deposited immediately below the tip of the nozzle 11, so that the filling property of the core material is improved and the operation time is shortened.
【００３１】次に、第４の実施例について図１２を用い
て説明する。図１２は本発明の第４実施例に係る芯材充
填装置の充填口付近の拡大断面図である。Next, a fourth embodiment will be described with reference to FIG. FIG. 12 is an enlarged sectional view of the vicinity of the filling port of the core material filling apparatus according to the fourth embodiment of the present invention.
【００３２】図１２において、２１はプーリ等の動力伝
達手段であり、モータ（図示せず）等により芯材充填ノ
ズル１１を該ノズル１１の軸心を中心に回転させるよう
になっている。従って、芯材９はより均一に拡散・充填
されるので、芯材９の充填性は一層改善され、作業時間
は更に短縮される。In FIG. 12, reference numeral 21 denotes a power transmission means such as a pulley, which rotates the core material filling nozzle 11 about the axis of the nozzle 11 by a motor (not shown) or the like. Therefore, since the core material 9 is more uniformly diffused and filled, the filling property of the core material 9 is further improved, and the working time is further reduced.
【００３３】[0033]
【発明の効果】本発明の芯材充填装置は以上のように構
成されたものであるので、中袋の芯材に含まれる空気が
充填時に除去され、充填時から中袋の隅々まで嵩が小さ
く、均一で且つ緻密な芯材が、均等な厚さに詰まったも
のが得られる。Since the core material filling apparatus of the present invention is constructed as described above, air contained in the core material of the inner bag is removed at the time of filling, and the volume from the filling to the corners of the inner bag is reduced. A small, uniform and dense core material packed in a uniform thickness can be obtained.
【００３４】従って、中袋の芯材が詰まっていない部分
は外周の接合部分だけとなり、外包材に中袋を入れて真
空引きを行った際にも芯材の嵩の減少が少なく、外包材
の隅々まで芯材の詰まった真空断熱材を得ることがで
き、中袋と外包材の材料の無駄を無くすことができ、さ
らに、冷蔵庫等の断熱壁の隅々まで真空断熱材を配設す
ることができる。また、中袋の芯材は均一で且つ表面が
平坦にできているため、表面の平滑な真空断熱材が得ら
れるので、真空断熱材を冷蔵庫等の外箱や内箱に直接張
り付けて使用した際にも外箱や内箱のへこみが防止でき
る。さらに、中袋への芯材充填時の芯材の飛散が極めて
少ないため、作業環境の汚染による人体への悪影響も軽
減できる。Accordingly, the portion of the inner bag which is not clogged with the core material is only the outer peripheral joint portion. Even when the inner bag is put into the outer packaging material and the evacuation is performed, the decrease in the bulk of the core material is small, and The vacuum insulation material filled with the core material can be obtained at every corner, eliminating the waste of the material of the inner bag and the outer packaging material. Furthermore, the vacuum insulation material is installed at every corner of the insulation wall of the refrigerator etc. can do. In addition, since the core material of the inner bag is uniform and the surface is made flat, a vacuum insulation material having a smooth surface can be obtained. Therefore, the vacuum insulation material was directly attached to an outer box or inner box of a refrigerator or the like for use. In this case, dents in the outer and inner boxes can be prevented. Furthermore, since the scattering of the core material when filling the core material into the inner bag is extremely small, the adverse effect on the human body due to the contamination of the working environment can be reduced.
【００３５】そして、請求項２の芯材充填装置は、上型
の充填口周辺下面の中袋と接する部分にシール用パッキ
ンが設けられ、芯材の漏洩を防止するようになっている
ので、芯材充填ノズルと中袋の該ノズルの挿入口との位
置合わせの精度が緩和され、作業性が改善できる。In the core material filling apparatus according to the second aspect, a seal packing is provided at a portion in contact with the inner bag at the lower surface around the filling port of the upper die, so that leakage of the core material is prevented. Accuracy of alignment between the core material filling nozzle and the insertion opening of the nozzle of the inner bag is relaxed, and workability can be improved.
【００３６】また、請求項３の芯材充填装置は、芯材充
填ノズルの吐出口が該ノズル先端近傍の側面に複数設け
られているため、芯材の充填性が良くなり作業時間も短
縮できる。In the core material filling apparatus according to the third aspect, since a plurality of discharge ports of the core material filling nozzle are provided on the side surface near the tip of the nozzle, the filling property of the core material is improved and the working time can be shortened. .
【００３７】さらに、請求項４の芯材充填装置は、吐出
口が先端近傍の側面に設けられた芯材充填ノズルが、芯
材の充填時に該ノズルの軸心を中心に回転するようにな
っているので、芯材の充填性が一層良くなり、作業時間
も更に短縮できる。Further, in the core material filling apparatus according to the fourth aspect, the core material filling nozzle provided with the discharge port on the side surface near the front end rotates around the axis of the nozzle when filling the core material. Therefore, the filling property of the core material is further improved, and the working time can be further reduced.
【図１】本発明の芯材充填装置の第１実施例を示す要部
平面図である。FIG. 1 is a main part plan view showing a first embodiment of a core material filling apparatus of the present invention.
【図２】図１のＡ−Ａ断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】本発明の芯材充填装置の第１実施例に係るノズ
ル受部付近の断面図である。FIG. 3 is a sectional view of the vicinity of a nozzle receiving portion according to the first embodiment of the core material filling apparatus of the present invention.
【図４】本発明の第１実施例の芯材充填装置上型の充填
口付近を下方から見た要部拡大図である。FIG. 4 is an enlarged view of a main part of the upper part of the upper die of the core material filling device according to the first embodiment of the present invention, as viewed from below the filling port.
【図５】本発明の第１実施例の芯材充填装置の中板に中
袋を載置し、同装置上型に芯材充填ノズルを挿入した状
態を示す要部断面図である。FIG. 5 is a cross-sectional view of a main part showing a state in which the inner bag is placed on the middle plate of the core material filling device of the first embodiment of the present invention, and the core material filling nozzle is inserted into the upper die of the device.
【図６】本発明の第１実施例の芯材充填装置内の排気を
行っている状態を示す要部拡大図である。FIG. 6 is an enlarged view of a main part showing a state where air is being exhausted from the core material filling apparatus according to the first embodiment of the present invention.
【図７】本発明の第１実施例の芯材充填装置の内壁に吸
着した中袋の挿入口に芯材充填ノズルを挿入した状態を
示す図である。FIG. 7 is a view showing a state in which a core material filling nozzle is inserted into an insertion opening of the inner bag adsorbed on the inner wall of the core material filling device according to the first embodiment of the present invention.
【図８】本発明の第１実施例の芯材充填装置内の中袋に
芯材充填ノズルから芯材を充填している状態を示す図で
ある。FIG. 8 is a diagram showing a state in which a core material is filled from a core material filling nozzle into a middle bag in the core material filling device according to the first embodiment of the present invention.
【図９】本発明の芯材充填装置の第２実施例に係るノズ
ル受部付近の断面図である。FIG. 9 is a sectional view of the vicinity of a nozzle receiving portion according to a second embodiment of the core material filling apparatus of the present invention.
【図１０】本発明の第２実施例に係る芯材充填装置上型
の充填口付近を下方から見た要部拡大図である。FIG. 10 is an enlarged view of a main portion of the vicinity of a filling opening of an upper die of a core material filling device according to a second embodiment of the present invention, as viewed from below.
【図１１】本発明の第３実施例に係る芯材充填装置の充
填口付近の拡大断面図である。FIG. 11 is an enlarged sectional view near a filling port of a core material filling apparatus according to a third embodiment of the present invention.
【図１２】本発明の第４実施例に係る芯材充填装置の充
填口付近の拡大断面図である。FIG. 12 is an enlarged cross-sectional view near a filling port of a core material filling apparatus according to a fourth embodiment of the present invention.
４ 下型 ６ 上型 ９ 芯材 １０ 充填口 １１ 芯材充填ノズル １７ 中袋 １９ シール用パッキン ２１ 動力伝達手段 4 Lower Die 6 Upper Die 9 Core Material 10 Filling Port 11 Core Material Filling Nozzle 17 Middle Bag 19 Seal Packing 21 Power Transmission Means
Claims (4)
機粉末や硬質ウレタンフォームの粉砕体のような有機粉
末を紙や布等で作られた通気性の中袋に均一に、且つ緻
密に充填する芯材充填装置であって、この装置は、水平
部の全面に多数の小径の通気孔が設けられると共に上記
水平部の外周近傍から略垂直に立ち上がった壁に略等間
隔に複数の小径の通気孔が設けられ、その壁で排気通路
の内壁を形成する中板と、平面部の中央付近に一つ以上
の大きな排気口が設けられると共にこの平面部の外周近
傍から略直角に立ち上がった壁により上記排気通路の外
壁を形成し、更に上記中板の水平部と前記平面部とによ
って上記排気通路から上記排気口に通じる排気トンネル
を形成する下板とで二重の上方開放の断面コ字状の下型
を構成し、この下型に対向する下面に縦横に上記排気通
路に通じる狭長の排気溝と、中央付近に上記芯材の充填
口とが設けられた平板状の上型と上記下型とで芯材充填
装置を構成し、上記中板に芯材充填ノズルの挿入口が穿
孔された中袋が載置され、上記下板の排気口から排気さ
れて芯材充填装置内が減圧され、上記中袋が上型と中板
に吸着されると上記中袋に設けられた挿入口から芯材充
填ノズルの先端を中袋の中まで挿入し、上記装置内を減
圧しながら中袋に芯材を充填するようにしたことを特徴
とする真空断熱材の芯材充填装置。An inorganic powder such as pearlite as a core material of a vacuum heat insulating material or an organic powder such as a crushed hard urethane foam is uniformly and densely packed in a gas-permeable inner bag made of paper or cloth. This device is provided with a number of small-diameter ventilation holes on the entire surface of the horizontal portion, and a plurality of the holes are provided at substantially equal intervals on a wall rising substantially vertically from the vicinity of the outer periphery of the horizontal portion. A small-diameter vent hole is provided, the wall of which forms an inner wall of the exhaust passage, and one or more large exhaust ports are provided near the center of the plane portion, and rise at a substantially right angle from the vicinity of the outer periphery of the plane portion. The outer wall of the exhaust passage is formed by the wall, and the horizontal portion of the middle plate and the lower plate forming an exhaust tunnel communicating with the exhaust port from the exhaust passage by the flat portion and the flat portion have a double upward open cross section. Configure a U-shaped lower mold A core material filling device is constituted by a flat upper mold and a lower mold provided with a narrow elongate exhaust groove communicating with the exhaust passage vertically and horizontally on the lower surface opposite to the upper surface and a filling port for the core material near the center. An inner bag having a core material filling nozzle insertion hole perforated therein is placed on the middle plate, and the inside of the core material filling device is evacuated from an exhaust port of the lower plate to reduce the pressure. The tip of the core material filling nozzle is inserted into the inner bag through the insertion hole provided in the inner bag when sucked on the plate, and the inner bag is filled with the core material while decompressing the inside of the device. An apparatus for filling a core material of a vacuum heat insulating material.
する部分にシール用パッキンを設けた請求項１記載の真
空断熱材の芯材充填装置。2. The vacuum heat insulating core material filling apparatus according to claim 1, wherein a seal packing is provided on a portion of the lower surface around the filling port of the upper die in contact with the inner bag.
材充填ノズル先端近傍の側面に複数設けた請求項１又は
請求項２記載の真空断熱材の芯材充填装置。3. An apparatus for filling a core material for vacuum heat insulating material according to claim 1, wherein a plurality of discharge ports at the tip of the core material filling nozzle are provided on a side surface near the tip of the core material filling nozzle.
させるようにした請求項３記載の真空断熱材の芯材充填
装置。4. An apparatus for filling a core material of a vacuum heat insulating material according to claim 3, wherein said core material filling nozzle is rotated when filling the core material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3124192A JP2609008B2 (en) | 1991-05-29 | 1991-05-29 | Vacuum insulation material core filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3124192A JP2609008B2 (en) | 1991-05-29 | 1991-05-29 | Vacuum insulation material core filling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04351397A JPH04351397A (en) | 1992-12-07 |
| JP2609008B2 true JP2609008B2 (en) | 1997-05-14 |
Family
ID=14879267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3124192A Expired - Fee Related JP2609008B2 (en) | 1991-05-29 | 1991-05-29 | Vacuum insulation material core filling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2609008B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2901803B2 (en) * | 1992-04-27 | 1999-06-07 | シャープ株式会社 | Vacuum insulation core material storage container, and core material filling device and method |
| EP1378800B1 (en) | 2002-07-02 | 2013-12-18 | Brother Kogyo Kabushiki Kaisha | Developer filling method |
| JP2004061757A (en) * | 2002-07-26 | 2004-02-26 | Brother Ind Ltd | Developer filling method, developing cartridge and image forming apparatus having it |
-
1991
- 1991-05-29 JP JP3124192A patent/JP2609008B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04351397A (en) | 1992-12-07 |
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