JP2973233B2 - Thermal sealing device for lid to container - Google Patents

Thermal sealing device for lid to container

Info

Publication number
JP2973233B2
JP2973233B2 JP2409432A JP40943290A JP2973233B2 JP 2973233 B2 JP2973233 B2 JP 2973233B2 JP 2409432 A JP2409432 A JP 2409432A JP 40943290 A JP40943290 A JP 40943290A JP 2973233 B2 JP2973233 B2 JP 2973233B2
Authority
JP
Japan
Prior art keywords
heat
rubber layer
boron nitride
lid
container
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 - Lifetime
Application number
JP2409432A
Other languages
Japanese (ja)
Other versions
JPH04267717A (en
Inventor
亮太 近沢
英夫 河合
博一 竹中
永三 礒山
豊 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHOWA ARUMINIUMU KK
Original Assignee
SHOWA ARUMINIUMU KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHOWA ARUMINIUMU KK filed Critical SHOWA ARUMINIUMU KK
Priority to JP2409432A priority Critical patent/JP2973233B2/en
Publication of JPH04267717A publication Critical patent/JPH04267717A/en
Application granted granted Critical
Publication of JP2973233B2 publication Critical patent/JP2973233B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】この発明は、例えばガラス、金
属、セラミックまたは陶器製容器等の容器に対する蓋の
熱封緘装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat sealing device for a lid of a container such as a glass, metal, ceramic or ceramic container.

【０００２】[0002]

【従来の技術】従来、粉体、液体および粘性体の食品を
びん等のガラス容器に密封包装するには、蓋材に感熱接
着性樹脂を被覆しておき、この蓋材をガラス容器の口部
にヒ―トシ―ルにより接着することが行われている。2. Description of the Related Art Conventionally, to seal and package powdery, liquid and viscous foods in a glass container such as a bottle, a lid material is coated with a heat-sensitive adhesive resin, and the lid material is sealed in the opening of the glass container. Adhering to the part with a heat seal is performed.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、一般
に、食品密封包装用のガラス容器は、口部分の仕上げ精
度が悪く、口周縁部の表面に高さ約０．４mm程度の微小
な凹凸が形成されており、このため、熱封緘材層を有す
る金属箔製蓋をガラス容器の口部に被せて、加熱押圧部
材（シールヘッド）を用いて熱封緘を行なっても、加熱
押圧部材の押圧面が、例えば銅製薄板よりなるものであ
る場合には、ガラス容器表面の凹凸に充分追従すること
ができず、未シール部がない状態で完璧にヒートシール
することは困難であり、容器の内容物が例えば酒、ジュ
ース、ジャム等の液体もしくは粘性体であるような場合
には、保管中に容器口部と蓋材間の熱封緘接着部に水や
ジャムが入り込んで、接着力が著しく低下し、ひどいと
きには蓋材が剥離するおそれがあるという問題があっ
た。However, in general, the glass container for hermetically sealed food has poor finishing accuracy of the mouth portion, and minute irregularities having a height of about 0.4 mm are formed on the surface of the mouth peripheral portion. For this reason, even if a metal foil lid having a heat sealing material layer is placed over the mouth of the glass container and heat sealing is performed using a heat pressing member (seal head), the pressing surface of the heat pressing member remains For example, when the container is made of a thin copper plate, it is difficult to completely follow the irregularities on the surface of the glass container, and it is difficult to completely heat seal without an unsealed portion. For example, in the case of a liquid or viscous substance such as sake, juice, jam, etc., water or jam enters the heat sealing adhesive portion between the container mouth and the lid material during storage, and the adhesive strength is significantly reduced, Lid peels off in severe cases There is a problem that fear is there.

【０００４】そこで、加熱押圧部材の銅製薄板の下面に
ゴム層（クッションラバー）を設けて、ゴム層によりガ
ラス容器表面の凹凸を吸収することが考えられるが、こ
れでは、熱伝導性が悪く、反ってシール不良が生じやす
いという問題があった。Therefore, it is conceivable to provide a rubber layer (cushion rubber) on the lower surface of the copper thin plate of the heating / pressing member to absorb irregularities on the surface of the glass container with the rubber layer. However, this method has poor thermal conductivity. There is a problem that the sealing failure is likely to occur.

【０００５】この発明の目的は、上記の従来技術の問題
を解決し、ガラス容器等表面の凹凸を充分吸収すること
ができて、しかも熱伝導性がすぐれており、熱封緘材層
を有する金属箔製蓋をガラス容器等の口部に、未シール
部の無い状態に均一にヒートシールすることができる容
器に対する蓋の熱封緘装置を提供しようとするにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to sufficiently absorb irregularities on the surface of a glass container or the like, have excellent thermal conductivity, and have a metal having a heat sealing material layer. An object of the present invention is to provide a heat sealing device for a lid which can uniformly heat seal a foil lid to an opening of a glass container or the like without an unsealed portion.

【０００６】[0006]

【課題を解決するための手段】この発明による容器に対
する蓋の熱封緘装置は、上記の目的を達成するために、
加熱押圧部材と、これの下側に配置された円板状もしく
は環状の金属薄板と、加熱押圧部材の周縁部に取り付け
られかつ下端に内方突出状の金属薄板受部を有する筒状
取付部材とを備えた熱封緘装置において、金属薄板の容
器口周縁部押圧予定部分の下面に、厚さ０．１〜１．５
mmの窒化硼素入り下部ゴム層(5) が設けられ、下部ゴム
層は、合成ゴム等のゴム・ベース１００重量部に対して
粒径０．５〜１０μｍの窒化硼素粉末３０〜３００重量
部の配合割合を有するものであることを特徴としてい
る。SUMMARY OF THE INVENTION A container according to the present invention is provided.
The heat sealing device for the lid to achieve the above object,
A tubular mounting member having a heating press member, a disk-shaped or annular thin metal plate disposed below the heating press member, and a metal sheet receiving portion which is attached to a peripheral portion of the heat press member and has an inwardly projecting metal thin plate at a lower end. In the heat sealing device having a thickness of 0.1 to 1.5,
mm boron nitride-containing lower rubber layer (5) is provided, the lower rubber
Layer is based on 100 parts by weight of rubber base such as synthetic rubber
Boron nitride powder having a particle size of 0.5 to 10 μm 30 to 300 weight
It is characterized by having a mixing ratio of parts .

【０００７】上記において、加熱押圧部材の下側に配置
された金属薄板は、加熱押圧部材に熱的に接続されてお
り、かつ金属薄板は、熱伝導性が良好であることが必要
である。このような金属薄板としては、一般に銅を使用
するが、その他アルミニウム、鉛、亜鉛等よりなるもの
を使用することもある。In the above, the thin metal plate disposed below the heating and pressing member is thermally connected to the heating and pressing member, and the thin metal plate needs to have good thermal conductivity. As such a thin metal plate, copper is generally used, but a thin plate made of aluminum, lead, zinc or the like may be used.

【０００８】金属薄板の厚みは、概ね０．０５〜１．０
mm、好ましくは０．１〜０．８mmである。金属薄板はこ
れを一枚であるいは複数枚重ねて使用する。また金属薄
板は円板状であっても、あるいはリング状であっても、
どちらでも良い。[0008] The thickness of the metal sheet is generally 0.05 to 1.0.
mm, preferably 0.1 to 0.8 mm. The metal sheet is used as a single sheet or a plurality of sheets. Also, the metal sheet may be in the shape of a disk or a ring,
both are fine.

【０００９】そして、金属薄板の下面、とくに容器口周
縁部押圧予定部分の下面に設けられた下部ゴム層は、合
成ゴム、その他の弾性および耐熱性を有する素材をベー
スとして、これに窒化硼素粉末が混合せられているもの
である。The lower rubber layer provided on the lower surface of the metal thin plate, particularly on the lower surface of the portion to be pressed at the peripheral edge of the container, is made of synthetic rubber or another material having elasticity and heat resistance, and is made of boron nitride powder. Are mixed.

【００１０】ここで、窒化硼素粉末の粒径は、０．５〜
１０μｍ、好ましくは１〜２μｍである。粒径０．５μ
ｍ未満の大きさの窒化硼素粉末は、その製造が困難であ
り、また窒化硼素粉末の粒径が１０μｍを越えると、反
って熱伝導性が低下するので、好ましくない。Here, the particle size of the boron nitride powder is 0.5 to
It is 10 μm, preferably 1-2 μm. Particle size 0.5μ
It is not preferable that the boron nitride powder having a size of less than m is difficult to produce, and if the particle size of the boron nitride powder exceeds 10 μm, the thermal conductivity is lowered, which is not preferable.

【００１１】合成ゴム等のゴム・ベースに対する窒化硼
素粉末の配合割合は、ゴム・ベース１００重量部に対し
て窒化硼素粉末３０〜３００重量部、好ましくは５０〜
１５０重量部である。窒化硼素粉末の添加が３０重量部
未満であれば、熱伝導性が悪く、３００重量部を越える
と、弾性がなくなり、耐久性が悪くなるので、好ましく
ない。The compounding ratio of the boron nitride powder to the rubber base such as synthetic rubber is from 30 to 300 parts by weight, preferably from 50 to 300 parts by weight, based on 100 parts by weight of the rubber base.
It is 150 parts by weight. If the addition of boron nitride powder is less than 30 parts by weight, thermal conductivity is poor, and if it exceeds 300 parts by weight, elasticity is lost and durability is deteriorated.

【００１２】また窒化硼素入り下部ゴム層の厚さは、
０．１〜１．５mm、好ましくは０．３〜１．０mmであ
る。窒化硼素入り下部ゴム層の厚さが０．１mm未満であ
れば、薄すぎて、クッション性がなく、均一なシールが
できない。また窒化硼素入り下部ゴム層の厚さが１．５
mmを越えると、熱伝導性が低くなるので好ましくない。The thickness of the lower rubber layer containing boron nitride is as follows:
It is 0.1 to 1.5 mm, preferably 0.3 to 1.0 mm. If the thickness of the lower rubber layer containing boron nitride is less than 0.1 mm, it is too thin, has no cushioning property, and cannot provide a uniform seal. The thickness of the lower rubber layer containing boron nitride is 1.5.
Exceeding mm is not preferred because thermal conductivity is reduced.

【００１３】なお、熱封緘装置には、通常、加熱押圧部
材の下面に設けられた環状凹部内に収められかつ金属薄
板の容器口周縁部押圧予定部分に対向して位置する上部
ゴム層が備えられている。The heat sealing device usually has an upper rubber layer which is housed in an annular recess provided on the lower surface of the heat pressing member and is located opposite to a portion of the thin metal plate which is to be pressed around the container opening. Have been.

【００１４】このような上部ゴム層としては、合成ゴム
その他の弾性を有する素材よりなり、かつ耐熱性を有す
るものを使用する。またこれらのゴム層は熱伝導性を併
わせ有するものが好ましく、これには例えばゴムに金属
粉、カーボンブラック粉、および金属酸化物粉等を適宜
練り込んだゴム層があげられる。上部ゴム層の厚みは、
通常１〜５mmである。The upper rubber layer is made of synthetic rubber or another material having elasticity and has heat resistance. It is preferable that these rubber layers also have thermal conductivity, and examples thereof include a rubber layer in which metal powder, carbon black powder, metal oxide powder, and the like are appropriately kneaded into rubber. The thickness of the upper rubber layer is
Usually it is 1 to 5 mm.

【００１５】ところで、容器の蓋を構成する金属箔は、
通常、アルミニウム箔を使用するが、その他の金属箔で
あってもよい。アルミニウム箔の場合は、その厚さは２
０〜１００μｍ、好ましくは４０〜６０μｍである。By the way, the metal foil constituting the lid of the container is
Usually, aluminum foil is used, but other metal foils may be used. In the case of aluminum foil, its thickness is 2
It is 0 to 100 μm, preferably 40 to 60 μm.

【００１６】また蓋の下面に設けられた熱封緘材層はポ
リエチレン、エチレンー酢酸ビニル共重合体等の熱可塑
性合成樹脂、あるいはこれらの樹脂に、ワックス、その
他の配合物を所定の割合で配合した組成物により構成さ
れている。金属箔と熱封緘材層との間には接着媒介層と
してのポリエチン樹脂層等が介在されていても、勿論良
い。The heat sealing material layer provided on the lower surface of the lid is made of a thermoplastic synthetic resin such as polyethylene or ethylene-vinyl acetate copolymer, or a mixture of these resins with wax and other compounds at a predetermined ratio. It is composed of a composition. Of course, a polyethene resin layer or the like as an adhesion mediating layer may be interposed between the metal foil and the heat sealing material layer.

【００１７】[0017]

【作用】上記の熱封緘装置においては、金属薄板の下面
に下部ゴム層が設けられているから、熱封緘材層を有す
る金属箔製蓋をガラス容器等の口部にヒートシールする
さい、ガラス容器等表面の凹凸を充分吸収することがで
きる。しかもこの下部ゴム層に、厚さ０．１〜１．５mm
の窒化硼素入り下部ゴム層(5) が設けられ、下部ゴム層
は、合成ゴム等のゴム・ベース１００重量部に対して粒
径０．５〜１０μｍの窒化硼素粉末３０〜３００重量部
の配合割合を有するものである窒化硼素粉末が含まれて
いるから、熱伝導性がすぐれており、例えば銅製薄板等
の金属薄板を直接蓋材に押し付けて加熱した場合と同等
の熱が伝達されて、ヒートシール温度が非常に高く、ガ
ラス容器等の口部に蓋材を、未シール部の無い状態にか
つシール幅の広い状態に均一にヒートシールすることが
できる。In the above-mentioned heat sealing apparatus, since the lower rubber layer is provided on the lower surface of the thin metal plate, when the metal foil lid having the heat sealing material layer is heat-sealed to the mouth of a glass container or the like, the glass is closed. Irregularities on the surface of a container or the like can be sufficiently absorbed. Moreover, the lower rubber layer has a thickness of 0.1 to 1.5 mm.
Boron nitride-containing lower rubber layer (5) is provided, the lower rubber layer
Is 100 parts by weight of rubber base such as synthetic rubber.
30 to 300 parts by weight of boron nitride powder having a diameter of 0.5 to 10 μm
Since it contains boron nitride powder having a compounding ratio of , the heat conductivity is excellent, and the same heat is transmitted as when a metal thin plate such as a copper thin plate is directly pressed against a lid material and heated. Thus, the heat sealing temperature is very high, and the lid material can be uniformly heat-sealed at the mouth of a glass container or the like in a state where there is no unsealed portion and a state where the seal width is wide.

【００１８】[0018]

【実施例】つぎに、この発明の実施例を図面に基づいて
説明する。Next, an embodiment of the present invention will be described with reference to the drawings.

【００１９】図面において、熱封緘装置(1) の加熱押圧
部材(2) は、ヒーター（図示略）を内蔵した加熱押圧部
材本体(2a)と、これの下端部に所要数のボルト（図示
略）により取替え自在なように固着されたアルミニウム
・ブロックよりなる伝熱用アルミニウム・ブロック(2b)
とによって構成されている。In the drawing, a heat pressing member (2) of a heat sealing device (1) includes a heating pressing member main body (2a) having a built-in heater (not shown), and a required number of bolts (not shown in the drawing) at its lower end. ) Aluminum block for heat transfer consisting of an aluminum block fixed so that it can be replaced (2b)
And is constituted by.

【００２０】この加熱押圧部材(2) の伝熱用アルミニウ
ム・ブロック(2b)の下側に、０．３mmの厚さを有するリ
ング状銅製薄板(3)が配置され、この金属薄板(3) の下
面に、窒化硼素入り下部ゴム層(5) が設けられている。A ring-shaped copper thin plate (3) having a thickness of 0.3 mm is arranged below the heat transfer aluminum block (2b) of the heating pressing member (2). A lower rubber layer (5) containing boron nitride is provided on the lower surface of the substrate.

【００２１】ここで、窒化硼素入り下部ゴム層(5) は、
シリコンゴムをベースとし、このシリコンゴム１００重
量部に対して、粒径１μｍの窒化硼素粉末１００重量部
を混合することによりつくられたものである。この窒化
硼素入り下部ゴム層(5) の厚さは０．８mmとした。Here, the lower rubber layer (5) containing boron nitride is
It is made by mixing 100 parts by weight of boron nitride powder having a particle size of 1 μm with 100 parts by weight of silicon rubber based on silicon rubber. The thickness of the lower rubber layer (5) containing boron nitride was 0.8 mm.

【００２２】また加熱押圧部材(2) の外周縁部に、窒化
硼素入り下部ゴム層(5) 付きリング状銅製薄板(3) の外
周縁部を下から受ける外側受部(7) を備えた外側筒状取
付部材(6) が所要数のねじ(15)によって取り付けられる
とともに、加熱押圧部材(2) の中央部に、この銅製薄板
(3) の内周縁部を下から受ける内側受部(9) を備えた内
側筒状取付部材(8) がねじ(17)によって取り付けられて
いる。An outer receiving portion (7) is provided on the outer peripheral edge of the heating and pressing member (2) to receive the outer peripheral edge of the ring-shaped copper thin plate (3) with the lower rubber layer (5) containing boron nitride from below. The outer tubular mounting member (6) is mounted with the required number of screws (15), and the thin copper plate is attached to the center of the heating pressing member (2).
An inner cylindrical mounting member (8) having an inner receiving portion (9) for receiving the inner peripheral edge portion of (3) from below is mounted by screws (17).

【００２３】伝熱用アルミニウム・ブロック(2b)の下面
に、銅製薄板(3) の容器口周縁部押圧予定部分に対応す
るように、環状凹部(16)が設けられていて、この環状凹
部(16)内に厚さ３mmの環状上部ゴム層(4) が収められて
いる。An annular recess (16) is provided on the lower surface of the heat transfer aluminum block (2b) so as to correspond to a portion of the copper thin plate (3) which is to be pressed around the container opening. 16) contains a 3 mm thick annular upper rubber layer (4).

【００２４】伝熱用アルミニウム・ブロック(2b)下面の
環状凹部(16)を除く中央部分と周縁部分とが銅製薄板
(3) の上面に直接接触せしめられることにより、銅製薄
板(3) が伝熱用アルミニウム・ブロック(2b)に、熱的に
接続されている。The central portion and the peripheral portion of the lower surface of the heat-transfer aluminum block (2b) except for the annular concave portion (16) are copper thin plates.
By being brought into direct contact with the upper surface of (3), the thin copper plate (3) is thermally connected to the aluminum block (2b) for heat transfer.

【００２５】ジャム等の食品を密封包装するためのガラ
ス容器(10)の口部(11)の上面には、蓋(12)が被せられ
る。この蓋(12)はアルミニウム箔(13)を基材として、こ
れの下面に熱封緘材層(14)が設けられているものであ
る。A lid (12) is placed on the upper surface of the mouth (11) of the glass container (10) for hermetically packaging foods such as jams. The lid (12) has an aluminum foil (13) as a base material and a heat sealing material layer (14) provided on a lower surface thereof.

【００２６】上記熱封緘材層(1) において、ジャム等の
内容物を入れたガラス容器(10)を密封包装するには、ま
ず熱封緘装置(1) の加熱押圧部材(2) の下方所定位置に
該ガラス容器(10)を配置し、この容器(10)の口部(11)に
蓋(12)を被せる。In the above-mentioned heat sealing material layer (1), in order to hermetically package a glass container (10) containing contents such as jam, first, a predetermined lower portion of a heat pressing member (2) of a heat sealing device (1). The glass container (10) is arranged at a position, and a lid (12) is put on a mouth (11) of the container (10).

【００２７】ついで、予め所定温度に加熱した加熱押圧
部材(2) を降下させ、銅製薄板(3) を介して蓋(12)の周
縁部寄りの所定部分をガラス容器(10)の口部(11)周縁部
の上面に押し付け、２秒間程度加圧加熱することによ
り、ガラス容器(10)の口部(11)に蓋(12)を熱封緘するも
のである。Then, the heating press member (2), which has been heated to a predetermined temperature in advance, is lowered, and a predetermined portion near the peripheral edge of the lid (12) is placed through the copper thin plate (3) at the mouth (10) of the glass container (10). 11) The lid (12) is heat-sealed to the mouth (11) of the glass container (10) by pressing against the upper surface of the peripheral portion and heating under pressure for about 2 seconds.

【００２８】上記熱封緘装置(1) によれば、銅製薄板
(1) の下面に、窒化硼素入り下部ゴム層(5) が設けられ
ているから、ガラス容器(10)の口部(11)表面の凹凸を充
分吸収することができるとともに、熱伝導性がすぐれて
いる。従って熱封緘材層(14)を有するアルミニウム箔製
蓋(12)をガラス容器(10)の口部(11)に、未シール部の無
い状態に均一にヒートシールすることができる。このた
め、ガラス容器(10)の内容物が例えば酒、ジュース、ジ
ャム等の液体もしくは粘性体であるような場合にも、蓋
(12)とガラス容器(10)の接着界面への水の侵入を有効に
阻止することができ、耐水性が大幅に増大して、良好な
接着状態を長期間維持することができる。なお、このよ
うにヒートシールによりガラス容器(10)の口部(11)に取
り付けられた蓋(12)は、これを適度の力で容易に開封す
ることができるものである。According to the heat sealing device (1), a copper thin plate
Since the lower rubber layer (5) containing boron nitride is provided on the lower surface of (1), it can sufficiently absorb the unevenness of the surface of the mouth (11) of the glass container (10), and the thermal conductivity can be improved. It is excellent. Accordingly, the aluminum foil lid (12) having the heat sealing material layer (14) can be uniformly heat-sealed to the mouth (11) of the glass container (10) without any unsealed portion. Therefore, even when the content of the glass container (10) is a liquid or a viscous material such as alcohol, juice, jam, etc.
Water can be effectively prevented from entering the bonding interface between the glass container (12) and the glass container (10), and the water resistance is greatly increased, so that a good bonding state can be maintained for a long time. The lid (12) attached to the opening (11) of the glass container (10) by heat sealing as described above can be easily opened with an appropriate force.

【００２９】つぎに、この発明の効果を明らかにするた
めに、びん口表面高低差の吸収度テストおよび熱伝導性
テストを実施した。Next, in order to clarify the effect of the present invention, an absorbance test and a thermal conductivity test of the difference in surface height of the bottle mouth were performed.

【００３０】びん口表面高低差の吸収度テスト まず、上記ガラス容器(10)として口径３２mmおよび口部
表面の高低差０．３mmのびん（ＰＳ−１０Ｋ規格びん）
を使用した。そして、このびん(10)の口部表面と加熱押
圧部材(2) のシールヘッドとの間に感圧紙を挿入し、加
熱押圧部材(2) のシールヘッドを１５０kgf／個の圧力
で、２秒間、加圧し、感圧紙の発色状態および色の濃さ
からびん口表面の高低差の吸収度を測定した。 Absorption test of height difference in bottle surface First, a bottle having a diameter of 32 mm and a height difference of 0.3 mm in the mouth surface (PS-10K standard bottle) as the glass container (10).
It was used. Then, pressure-sensitive paper is inserted between the mouth surface of the bottle (10) and the sealing head of the heating and pressing member (2), and the sealing head of the heating and pressing member (2) is pressed at a pressure of 150 kgf / piece for 2 seconds. Then, the pressure difference was measured, and the absorbance of the height difference on the surface of the bottle mouth was measured from the color development state and the color density of the pressure-sensitive paper.

【００３１】その結果、シールヘッドを銅製薄板のみと
した比較例では、該シールヘッドとびん口部との間の感
圧紙の押圧部分（シール部分）は、押さえ跡が細く、か
つ一部に色の淡いところがあり、明らかにシールが不均
一であった。As a result, in the comparative example using only a copper thin plate as the seal head, the pressing portion (seal portion) of the pressure-sensitive paper between the seal head and the bottle opening portion has a small pressing mark and partially has a color. And the seal was clearly non-uniform.

【００３２】これに対し、シールヘッドに、上記の厚さ
０．８mmの窒化硼素入り下部ゴム層(5) 付き銅製薄板
(3) を用いた本発明の熱封緘装置(1) によれば、クッシ
ョン性が良好であり、シールヘッドとびん口部との間の
感圧紙の押圧部分（シール部分）の押さえ跡が太く、色
が濃く均一なものであった。このため均一なヒートシー
ルが可能であることが明らかである。On the other hand, a copper thin plate provided with a lower rubber layer (5) containing boron nitride having a thickness of 0.8 mm in the seal head.
ADVANTAGE OF THE INVENTION According to the heat sealing apparatus (1) of this invention which used (3), the cushioning property is favorable, and the press mark of the pressure-sensitive paper press part (seal part) between a seal head and a bottle opening is large. The color was dark and uniform. Thus, it is clear that uniform heat sealing is possible.

【００３３】また比較のために、シールヘッドとして、
厚さ１mmを有する酸化アルミニウム（Ａｌ2 Ｏ3 ）入り
下部ゴム層(5)付き銅製薄板(3) を用いて、上記の場合
と同様にテストを行なったところ、やはりクッション性
が良好であり、シールヘッドとびん口部との間の感圧紙
の押圧部分（シール部分）の押さえ跡が太く、色が濃く
均一なものであった。For comparison, as a seal head,
Using a copper thin plate (3) with a lower rubber layer (5) containing aluminum oxide (Al 2 O 3 ) having a thickness of 1 mm, the same test as above was carried out. The pressing portion (seal portion) of the pressure-sensitive paper between the seal head and the opening of the bottle had a large pressing mark, and was dark and uniform in color.

【００３４】熱伝導性テスト 上記３種類の熱封緘装置のシールヘッドを２００℃の温
度に設定して、２秒間のヒートシールを行なった時のび
ん口部の表面温度を測定した。 Thermal Conductivity Test The surface temperature of the bottle mouth was measured when the seal heads of the above three types of heat sealing devices were set at a temperature of 200 ° C. and heat-sealed for 2 seconds.

【００３５】その結果、銅製薄板のみの比較例のシール
ヘッドでは、びん口部の表面温度が１４５℃であり、こ
れに対し、窒化硼素入り下部ゴム層(5) 付き銅製薄板
(3) の本発明によるシールヘッドでは、びん口部の表面
温度が１４０℃であり、銅製薄板のみのシールヘッドの
場合とほとんど変わらない表面温度となり、熱伝導性が
非常にすぐれていた。As a result, in the seal head of the comparative example using only the copper thin plate, the surface temperature of the bottle mouth was 145 ° C., whereas the copper thin plate with the lower rubber layer (5) containing boron nitride was
(3) In the seal head according to the present invention, the surface temperature of the bottle mouth was 140 ° C., which was almost the same as that of the seal head using only a copper thin plate, and the heat conductivity was very excellent.

【００３６】一方、酸化アルミニウム入り下部ゴム層
(5) 付き銅製薄板(3) の比較例のシールヘッドでは、び
ん口部の表面温度が１１５℃であり、明らかに熱伝導性
が劣るものであったなお、上記実施例においては、窒化
硼素入り下部ゴム層(5) 付き銅製薄板(3) はリング状で
あるが、銅製薄板(3) は円板状であっても良い。その場
合、窒化硼素入り下部ゴム層(5) は、銅製薄板(3) の容
器口周縁部押圧予定部分の下面に設けられておれば、良
い。On the other hand, a lower rubber layer containing aluminum oxide
(5) In the seal head of the comparative example of the copper thin plate (3), the surface temperature of the bottle mouth was 115 ° C., and the thermal conductivity was clearly poor. In the above example, boron nitride was used. The copper thin plate (3) with the lower rubber layer (5) is ring-shaped, but the copper thin plate (3) may be disc-shaped. In this case, the lower rubber layer (5) containing boron nitride only needs to be provided on the lower surface of the copper thin plate (3) at the portion to be pressed at the peripheral edge of the container opening.

【００３７】またこの発明においては、金属薄板(3) の
下面に窒化硼素入り下部ゴム層(5) が設けられているの
で、場合によっては上部ゴム層を省略することもある。In the present invention, since the lower rubber layer containing boron nitride (5) is provided on the lower surface of the thin metal plate (3), the upper rubber layer may be omitted in some cases.

【００３８】[0038]

【発明の効果】この発明による熱封緘装置は、上述のよ
うに、金属薄板の容器口周縁部押圧予定部分の下面に、
厚さ０．１〜１．５mmの窒化硼素入り下部ゴム層(5) が
設けられ、下部ゴム層は、合成ゴム等のゴム・ベース１
００重量部に対して粒径０．５〜１０μｍの窒化硼素粉
末３０〜３００重量部の配合割合を有するものであるか
ら、ガラス容器等表面の凹凸を充分吸収することがで
き、しかも熱伝導性がすぐれており、熱封緘材層を有す
る金属箔製蓋をガラス容器等の口部に、未シール部の無
い状態に均一にヒートシールすることができるものであ
る。従って例えば内容物が酒、ジュース、ジャム等の液
体もしくは粘性体であるような場合にも、蓋とガラス容
器等容器の接着界面への水の侵入を有効に阻止すること
ができ、水環境下において接着力の低下が少なく、耐水
性が大幅に増大し、良好な接着状態を長期間維持するこ
とができるという効果を奏する。As described above, the heat sealing device according to the present invention has a structure in which the lower surface of the thin metal sheet is to be pressed at the peripheral portion of the container opening.
A lower rubber layer (5) containing boron nitride having a thickness of 0.1 to 1.5 mm is provided, and the lower rubber layer is made of a rubber base 1 made of synthetic rubber or the like.
Boron nitride powder having a particle size of 0.5 to 10 μm with respect to 00 parts by weight
Since Ru der having a blending ratio of end 30 to 300 parts by weight, it is possible to sufficiently absorb the unevenness of the glass container such as surface, yet has excellent thermal conductivity, a metal foil lid made having a heat sealing material layer Can be uniformly heat-sealed to the mouth of a glass container or the like without any unsealed portion. Therefore, for example, even when the contents are liquid or viscous material such as sake, juice, jam, etc., it is possible to effectively prevent water from entering the adhesive interface between the lid and the container such as a glass container. In this case, there is an effect that the decrease in the adhesive force is small, the water resistance is greatly increased, and a good adhesive state can be maintained for a long time.

【図面の簡単な説明】[Brief description of the drawings]

【図１】この発明の熱封緘装置を示す要部拡大断面図で
ある。FIG. 1 is an enlarged sectional view of a main part showing a heat sealing device of the present invention.

【図２】同熱封緘装置の部分断面図である。FIG. 2 is a partial cross-sectional view of the heat sealing device.

【符号の説明】[Explanation of symbols]

１ 熱封緘装置 ２ 加熱押圧部材 ３ 銅製薄板（金属薄板） ４ 上部ゴム層 ４ 窒化硼素入り下部ゴム層 ６ 筒状取付部材 ７ 金属薄板受部 １０ ガラス容器（びん） １１ 口部 １２ 蓋 １３ アルミニウム箔 １４ 熱封緘材層 １６ 環状凹部 DESCRIPTION OF SYMBOLS 1 Heat sealing device 2 Heat press member 3 Copper thin plate (metal thin plate) 4 Upper rubber layer 4 Lower rubber layer containing boron nitride 6 Tubular mounting member 7 Metal thin plate receiving part 10 Glass container (bottle) 11 Mouth part 12 Lid 13 Aluminum foil 14 Heat sealing material layer 16 Annular recess

───────────────────────────────────────────────────── フロントページの続き (72)発明者 礒山 永三 堺市海山町６丁224番地 昭和アルミニ ウム株式会社内 (72)発明者 加藤 豊 堺市海山町６丁224番地 昭和アルミニ ウム株式会社内 (56)参考文献 特開 昭62−16321（ＪＰ，Ａ) 特開 昭58−202470（ＪＰ，Ａ) 実開 平１−179807（ＪＰ，Ｕ) 実開 平１−69706（ＪＰ，Ｕ) 実開 昭62−177608（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) B65B 51/10 B29C 65/00 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Eizo Isoyama, 224 Kaiyama-cho, Sakai City Showa Aluminum Co., Ltd. (72) Inventor Yutaka Kato 6, 224, Kaiyama-cho, Sakai City Showa Aluminum Co., Ltd. (56) References JP-A-62-16321 (JP, A) JP-A-58-202470 (JP, A) JP-A-1-179807 (JP, U) JP-A-1-69706 (JP, U) 62-177608 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) B65B 51/10 B29C 65/00

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 加熱押圧部材(2) と、これの下側に配置
された円板状もしくは環状の金属薄板(3) と、加熱押圧
部材(2) の周縁部に取り付けられかつ下端に内方突出状
の金属薄板受部(7) を有する筒状取付部材(6) とを備え
た熱封緘装置において、金属薄板(3) の容器口周縁部押
圧予定部分の下面に、厚さ０．１〜１．５mmの窒化硼素
入り下部ゴム層(5) が設けられ、下部ゴム層は、合成ゴ
ム等のゴム・ベース１００重量部に対して粒径０．５〜
１０μｍの窒化硼素粉末３０〜３００重量部の配合割合
を有するものであることを特徴とする、容器に対する蓋
の熱封緘装置。1. A heating / pressing member (2), a disk-shaped or annular thin metal plate (3) disposed below the heating / pressing member (2), and a heat-pressing member (2) In a heat sealing device having a cylindrical mounting member (6) having a metal sheet receiving portion (7) protruding in the direction, the thickness of the metal sheet (3) is set to 0. A lower rubber layer (5) containing boron nitride of 1 to 1.5 mm is provided, and the lower rubber layer is made of synthetic rubber.
0.5 to 100 parts by weight of rubber base such as rubber
Compounding ratio of 30 to 300 parts by weight of 10 μm boron nitride powder
It characterized in that with the heat sealing apparatus of the lid relative to the container.
JP2409432A 1990-12-28 1990-12-28 Thermal sealing device for lid to container Expired - Lifetime JP2973233B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2409432A JP2973233B2 (en) 1990-12-28 1990-12-28 Thermal sealing device for lid to container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2409432A JP2973233B2 (en) 1990-12-28 1990-12-28 Thermal sealing device for lid to container

Publications (2)

Publication Number Publication Date
JPH04267717A JPH04267717A (en) 1992-09-24
JP2973233B2 true JP2973233B2 (en) 1999-11-08

Family

ID=18518770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2409432A Expired - Lifetime JP2973233B2 (en) 1990-12-28 1990-12-28 Thermal sealing device for lid to container

Country Status (1)

Country Link
JP (1) JP2973233B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4856793B2 (en) * 2001-09-19 2012-01-18 株式会社川島製作所 Heat seal roller for packaging
JP4644048B2 (en) * 2005-06-17 2011-03-02 株式会社東京自働機械製作所 Vertical bag making and filling machine
JP6511323B2 (en) * 2015-04-15 2019-05-15 富士インパルス株式会社 Seal device

Also Published As

Publication number Publication date
JPH04267717A (en) 1992-09-24

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