JPH01500257A - Container and its forming method - Google Patents
Container and its forming methodInfo
- Publication number
- JPH01500257A JPH01500257A JP62504091A JP50409187A JPH01500257A JP H01500257 A JPH01500257 A JP H01500257A JP 62504091 A JP62504091 A JP 62504091A JP 50409187 A JP50409187 A JP 50409187A JP H01500257 A JPH01500257 A JP H01500257A
- Authority
- JP
- Japan
- Prior art keywords
- container
- mold
- raw material
- plastic
- parison
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 35
- 239000002994 raw material Substances 0.000 claims description 42
- 239000004033 plastic Substances 0.000 claims description 30
- 229920003023 plastic Polymers 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 20
- 238000000071 blow moulding Methods 0.000 claims description 17
- 229920001169 thermoplastic Polymers 0.000 claims description 11
- 239000004416 thermosoftening plastic Substances 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000000748 compression moulding Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 2
- 239000004700 high-density polyethylene Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 230000001568 sexual effect Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000012815 thermoplastic material Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Classifications
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
-
- 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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/004—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore making articles by joining parts moulded in separate cavities, said parts being in said separate cavities during said joining
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
- B29C2043/189—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the parts being joined
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
- B29C2049/2017—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements outside the article
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7154—Barrels, drums, tuns, vats
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 容器およびその成形方法 技術分野 本発明は、持ち上げ用の取手を一体的に有する中空容器と、前記中空容器を熱可 塑性の原料から製造する方法に関する。[Detailed description of the invention] Container and its forming method Technical field The present invention provides a hollow container that integrally has a handle for lifting, and a thermoplastic material for the hollow container. It relates to a method of manufacturing from plastic raw materials.
背景技術 例えば容量が55ガロンの円筒容器のような大きな中空容器を熱可塑性原料から 製作する場合、一般に、押し出し成形された中空管状の予備成形体すなわちパリ ソンを吹込み成形して製作されている。前記パリソンは開かれている吹込み成形 金型装置内に置かれ、前記金型装置が閉じられた後、前記パリソン内に空気を吹 込み、前記パリソンを前記金型装置の壁面方向に膨張させる。一般に取り扱いを 容易にするため、成形された容器の回りに持ち上げ用の取手あるいは回転用突出 縁を設けることが好ましい。Background technology Large hollow containers, such as cylindrical containers with a capacity of 55 gallons, are made from thermoplastic raw materials. For fabrication, it is generally an extruded hollow tubular preform, or paris. It is made by blow-molding Son. The parison is open blow molding Blow air into the parison after it is placed in a mold apparatus and the mold apparatus is closed. and expand the parison toward the wall of the mold device. General handling Lifting handles or rotating protrusions are placed around the molded container to facilitate Preferably, a rim is provided.
持ち上げ用の取手は容器の全周を囲むように設けられたリングから構成されても よく、このリングは回転用突出縁としての作用もする。The lifting handle may consist of a ring placed around the entire circumference of the container. Frequently, this ring also acts as a rotating lip.
吹込み成形された熱可塑性の中空容器に持ち上げ用の表面形成物あるいは取手を 取り付ける種々の方法が利用されている0円筒容器のような大きな容器の場合、 吹込み成形金型内に予め製作された回転用環状体を配置し、前記パリソンの膨張 時に前記環状体を前記円筒容器に溶接することが公知となっている。しかし、そ のような構造の円筒容器は取り扱い中に前記円筒容器から前記環状体が脱落する 。このような脱落を解消するため、金型のキャビティー内に講を形成し、この講 の中にパリソンの熱可塑性原料の一部を押し込む方法が採られている。前記溝は 前記金型の可動部材によって形造られる。前記清白に前記可塑性原料が押し込ま れた後、前記可動部材が前記可塑性原料を所定の突出縁あるいは取手の形状に圧 縮する。後者の方法は、例えば米国特許第4.228゜911号、同第4.52 9.570号に記載されている。Blow-molded thermoplastic hollow containers with lifting surfaces or handles For large containers, such as 0 cylindrical containers, where various methods of attachment are used, A prefabricated rotating annular body is placed in a blow mold, and the parison is expanded. It is sometimes known to weld the annular body to the cylindrical container. However, that In the case of a cylindrical container having such a structure, the annular body may fall off from the cylindrical container during handling. . In order to eliminate this kind of falling off, a hole is formed inside the mold cavity, and this hole is A method is adopted in which a portion of the thermoplastic material of the parison is forced into the container. The groove is It is shaped by the movable member of the mold. The plastic raw material is pushed into the clear part. After this, the movable member presses the plastic material into a predetermined shape of a protruding edge or handle. Shrink. The latter method is described, for example, in U.S. Pat. 9.570.
しかし、この形式の容器は突出縁が容器と接合している部分が弱いという欠点が ある。そこで原料の量を増加して突出物が設けられている部分の容器の壁の厚さ を増大することが提案されているが、そのような原料の追加は容器全体の壁の厚 さを好ましくない厚さに増大することになる。したがって、この形式の製造方法 では、リングの厚さと設置場所が制限を受けることになる。さらに、応力による クラックを最小限にするために、圧縮して形成されたリングは、メルトインデッ クス(1’1elt 1ndeX)の低い原料(約2HLMI)を用いているの で、従来の押し出し成形装置では製造が困離である。However, this type of container has the disadvantage that the part where the protruding edge joins the container is weak. be. Therefore, the thickness of the wall of the container in the area where the protrusion is provided by increasing the amount of raw material Although it has been proposed to increase the overall wall thickness of the container, the addition of such material This would increase the thickness to an undesirable thickness. Therefore, this form of manufacturing method Therefore, there are restrictions on the thickness of the ring and where it can be installed. Furthermore, due to stress To minimize cracking, the compression-formed ring is We use low raw materials (approx. 2HLMI) of However, it is difficult to manufacture using conventional extrusion molding equipment.
回転用突出縁を可塑性容器に溶接あるいは結合させる製法の例が米国特許第3, 960.474号に示されている。この発明では、予備成形された突出縁あるい は環状体を吹込み成形金型内に配置し、パリソンを膨張させてパリソンの柔軟な 熱可塑性原料と前記の予備成形された突出縁とを接着させるものである。したが って、突出縁と容器との結合はパリソンの熱可塑性原料が突出縁の原料と接着す る能力に左右され、内容物で満たされた容器を突出縁によって持ち上げるような 応力のかかった状態では、上記の結合が分itすることが知られている。An example of a manufacturing method for welding or bonding a rotating projecting edge to a plastic container is shown in U.S. Patent No. 3, No. 960.474. In this invention, a preformed protruding edge or places the toroid in a blow mold and inflates the parison to make the parison more flexible. The thermoplastic raw material and the preformed protruding edge are bonded together. However, Therefore, the connection between the protruding rim and the container is achieved by the thermoplastic material of the parison adhering to the material of the protruding rim. It depends on the ability to lift a container filled with its contents by a protruding edge. It is known that under stress, the above-mentioned bonds break apart.
本発明は突出縁あるいは持ち上げ用取手を有する容器成形の従来の方法における 上述の問題点を解決することを目的としている。The present invention improves the conventional method of forming containers with projecting edges or lifting handles. The purpose is to solve the above-mentioned problems.
発明の開示 本発明は持ち上げ用の表面形成物を一体的に有する可塑性の容器を1つの金型で 成形する方法であって(a) 可塑性原料が所定の容器形状になる一定の制御さ れた温度の下で第1の可塑性原料からなるパリソンを吹込み成形して容器本体を 成形する工程と、(b) 前記金型の凹部内に持ち上げ用の表面形成物を形成す るための充分な固体量の第2の可塑性原料を挿入する工程と、 (c) 容器の吹込み成形中に容器に隣接する位1で前記の第2の可塑性原料を 圧縮成形し、両方の原料が共に溶融している間に第2の可塑性原料と第1の可塑 性原料とを融合させる工程 とからなる成形方法を提供するものである。Disclosure of invention The present invention provides a plastic container having an integral lifting surface formation in one mold. A method of forming a plastic material, the method comprising: A parison made of the first plastic material is blow-molded to form a container body at a temperature of (b) forming a lifting surface formation in the recess of the mold; inserting a sufficient amount of solids of the second plastic material to (c) During the blow molding of the container, the above-mentioned second plastic raw material is added at a position adjacent to the container. Compression molding, the second plastic material and the first plastic material are combined while both materials are melted together. Process of fusing with sexual raw materials The present invention provides a molding method comprising:
また、本発明は吹込み成形金型内に配置された熱可塑性原料からなるパリソンを 吹込み成形することにより成形される持ち上げ用取手を一体的に有する可塑性容 器を提供するものである。前記取手は、吹込み金型に連接した箇所で熱可塑性原 料を所定の取手の形状に圧縮成形することによって容器の吹込み成形工程中に容 器に結合され、熱可塑性原料はパリソンの原料に対して両者が溶融状態にある内 に押圧され、取手形状に成形された原料が容器の原料と融合して融合一体接合が 形成される。The present invention also provides a parison made of thermoplastic raw material placed in a blow mold. A plastic container with an integral lifting handle formed by blow molding. It provides equipment. The handle is connected to the blowing mold and the thermoplastic material is During the container blow molding process, the material is compression molded into a predetermined handle shape. The thermoplastic raw material is connected to the parison raw material while both are in a molten state. The raw material, which is pressed into the shape of a handle, fuses with the raw material in the container, creating a fused and integrated joint. It is formed.
図面の簡単な説明 第1図は、第6図に示される容器を成形する金型装置の部分縦断面を示す概略側 面図、 第2図は、第1図と同様の図であり、開いた金型部材の空間内に可塑性原料から なる柔軟なチューブ(パリソン)を導入し、金型内に溶融押出し成形物を挿入し た状態を示す図、 第3図は、第2図と同様の図であり、金型が閉じられ吹込み成形が開始されてい るが未だ終了していない状態を示す図、 第4図は、第3図と同様の図であり、容器が完全に成形された後の容器と金型を 示す図、 第5図は、第4図と同様の図であり、容器の成形後金型が開かれた状態を示す図 、 第6図は、上述の製法により成形された容器の斜視図、第7図は、上述の製法に より成形された一体的な結合の部分拡大断面図である。Brief description of the drawing FIG. 1 is a schematic side view showing a partial longitudinal section of a mold device for molding the container shown in FIG. side view, FIG. 2 is a view similar to FIG. A flexible tube (parison) is introduced and the melt extrudate is inserted into the mold. A diagram showing the state Figure 3 is a view similar to Figure 2, with the mold closed and blow molding started. A diagram showing a state in which the process has been completed but has not yet been completed. Figure 4 is a view similar to Figure 3, showing the container and mold after the container is completely formed. diagram showing, FIG. 5 is a view similar to FIG. 4, showing a state in which the mold is opened after forming the container. , Figure 6 is a perspective view of a container molded by the above manufacturing method, and Figure 7 is a perspective view of a container molded by the above manufacturing method. FIG. 3 is a partially enlarged cross-sectional view of a more shaped integral connection.
発明を実旌するための最良の形態 図面を参照すると、第6図と第7図には容器8が示されており、容器8はほぼ筒 状の側壁10と上部を12と底部壁12aとをそれぞれ有している(第6図では 上部壁12のみが示されている)、上部壁12には1個以上の分配口あるいは排 出口11が設けられてもよい。The best form for putting your invention into practice Referring to the drawings, FIGS. 6 and 7 show a container 8, which is generally cylindrical. It has a shaped side wall 10, an upper part 12, and a bottom wall 12a (in FIG. (only top wall 12 is shown), top wall 12 may include one or more distribution ports or outlets. An outlet 11 may also be provided.
容器8は上部隅部に一体的に固定された取手用リング14を有しており、リング 14は主部16と容器8の本体と結合している細いフランジ部18とから成って いる。The container 8 has a handle ring 14 integrally fixed to the upper corner, and the ring 14 consists of a main part 16 and a thin flange part 18 that is connected to the main body of the container 8. There is.
リング14は回転用突出縁である場合もある。リング14は容器の持ち上げある いは容器を回転する際の支持に使用することができる。さらに、リング14は図 示例では容器8の上部面に設けられているが、容器8の他の位1に設けることも 可能であり、また複数のリング14を設けることも可能である。Ring 14 may also be a rotating lip. Ring 14 is for lifting the container Or it can be used to support when rotating the container. Furthermore, the ring 14 is In the example shown, it is provided on the upper surface of the container 8, but it may also be provided on other positions of the container 8. It is possible and also possible to provide a plurality of rings 14.
第7図には、上述の方法により成形された容器8とリング14との結合部分の縦 断面図が示されている。リング14とフランジ部18は図示されている形状に圧 縮して成形されている。この圧縮成形工程中にフランジ部18は箪1図乃至第5 図に示されるように金型の閉鎖部分から押し出されて容器8の熱可塑性原料中に 浸入する。FIG. 7 shows the longitudinal direction of the joint between the container 8 and the ring 14 formed by the method described above. A cross-sectional view is shown. Ring 14 and flange portion 18 are pressed into the shape shown. It is shrunk and molded. During this compression molding process, the flange portion 18 is As shown in the figure, it is extruded from the closed part of the mold and into the thermoplastic material in container 8. Infiltrate.
リング14と容器8の原料を公知の熱可塑性原料の中から選択することにより、 成形の結果得られた結合は本質的には分子結合であり、すなわち、結合部はその 周辺の原料と区分がつかないものであり、また結合部は原料が有する強度をもつ 、可塑性原料としては、例えば5乃至10の高負荷メルトインデックス(mel t 1ndex)を有する高密度ポリエチレン樹脂等が好ましい、1例としてリ ング14と容器8とが同種の熱可塑性原料から成形されたものでもよい。By selecting the raw materials for the ring 14 and the container 8 from among known thermoplastic raw materials, The bond obtained as a result of molding is essentially a molecular bond, i.e. the bond is It is indistinguishable from the surrounding raw materials, and the joints have the same strength as the raw materials. As the plastic raw material, for example, a high-load melt index of 5 to 10 (mel Preferably, high-density polyethylene resin having a The ring 14 and the container 8 may be molded from the same type of thermoplastic raw material.
図示例ではリング14から押し出された部分が容器8の原料中に浸入しているが 、1つの部材の原料が他の部材の原料中に強制的に浸入させられるのではなく、 容器8の原料がリング14中に浸入することが望ましい場合もある。さらに容器 8の原料を強制的にリング14中に浸入させることも可能である。さらに本発明 の大きな利点は、容器とリングに異種の原料を用いることにより、添加剤を添加 してリング14を着色することができる。In the illustrated example, the portion pushed out from the ring 14 has entered the raw material in the container 8. , rather than the raw material of one component being forced into the raw material of another component, It may be desirable for the material in container 8 to penetrate into ring 14. more containers It is also possible to forcibly infiltrate the raw material No. 8 into the ring 14. Furthermore, the present invention The big advantage is that by using different raw materials for the container and ring, it is possible to add additives. The ring 14 can be colored.
リング14を着色することによりリングの色によって容器を識別することができ 、カラーコード制を採用すれば容器の内容物が即座に識別できる。By coloring the ring 14, containers can be identified by the color of the ring. By adopting a color code system, the contents of the container can be immediately identified.
リング14が成形される押し出し部が分離して設けられているため、重い負荷に 対応してリング14の厚さを必要な厚さにすることができる。さらに、リング1 4は容器8の任意の位置に設けることができる。リング14を上部に設けること により排出口11を保護することができる。第1図乃至第5図を参照して成形方 法を更に詳しく説明する。第1図乃至第5図は吹込み成形操作の他に、以下に述 べる挿入圧縮成形操作に用いる構造部分を有すること以外は通常の形式である吹 込み成形金型装置20を示す。Since the extruded part where the ring 14 is formed is provided separately, it can withstand heavy loads. Correspondingly, the thickness of the ring 14 can be made as thick as required. Furthermore, ring 1 4 can be provided at any position in the container 8. Providing the ring 14 on the top Therefore, the discharge port 11 can be protected. Molding method with reference to Figures 1 to 5 Let me explain the law in more detail. Figures 1 to 5 show the blow molding operations as well as the following. The blow molding is of a conventional type except that it has structural parts used for insert compression molding operations. A molding device 20 is shown.
吹込み成形金型装rI120は、相互に離接可能な1対の側部部材22と、側部 部材22に対して離接可能な1対の端部部材28とを有する。各側部部材22は ほぼ半円筒形の側壁部24とほぼ半円形の端壁部26を一体的に有している。端 壁部26は図示例では上方に示されているが、端壁部26は容器の底部となる。The blow molding mold assembly rI120 includes a pair of side members 22 that can be separated from each other, and a side member 22 that It has a pair of end members 28 that can be moved into and out of contact with the member 22. Each side member 22 is It integrally has a substantially semi-cylindrical side wall portion 24 and a substantially semi-circular end wall portion 26. end Although the wall 26 is shown at the top in the illustrated example, the end wall 26 forms the bottom of the container.
これは容器が上下逆転した状態で成形されるためである。This is because the container is molded upside down.
端壁部26には、容器8の底部に環状の突起あるいはフランジ17を形成するた めの環状の凹部25が設けられている。各側壁部24は端部の向かい合う部分あ るいは図に示された位置より下方に環状の凹部27を有している。この凹部27 は端部部材28に設けられた環状の凹部2つとともに、下記の目的を有する環状 の4部を形成する。吹込み成形金型装置の端部部材28はほぼ半円形状をなし、 側部部材22の端壁部26に対応するように配設されている。The end wall portion 26 has an annular projection or flange 17 formed on the bottom of the container 8. A circular recess 25 is provided. Each side wall portion 24 has opposite end portions. Or, it has an annular recess 27 below the position shown in the figure. This recess 27 together with two annular recesses provided in the end member 28, an annular recess having the following purpose: Forms 4 parts. The end member 28 of the blow mold apparatus has a substantially semicircular shape; It is arranged so as to correspond to the end wall portion 26 of the side member 22.
上述のように各端部部材28はその外周に、その軸方向内方に向いている凹部2 9を有しており、この凹部29は側部部材22の01!I壁部24に設けられた 凹部27とともに、容器取扱い用のリング14を下記の方法によって設けるため に必要な原料を入れるための環状の溝部を形成する。凹部27と凹部29の形状 と大きさは、適宜変化させることができる。As mentioned above, each end member 28 has a recess 2 on its outer periphery facing axially inwardly. 9, and this recess 29 has 01! of the side member 22. installed on the I wall section 24 In order to provide the container handling ring 14 together with the recess 27 by the following method. An annular groove is formed to contain the necessary raw materials. Shape of recess 27 and recess 29 and the size can be changed as appropriate.
吹込み成形金型の上方には公知の押し出し成形機Xが配置されている。この押し 出し成形I!Xから可塑性原料の筒状管体すなわちパリソンPが押し出し成形さ れる。A known extrusion molding machine X is arranged above the blow molding die. This push Molding I! From It will be done.
吹込み成形金型の下端には吹込みパイIBを有する吹込み装置が配置されている 。押し出し成形機と吹込みパイプ装置は、従来の吹込み成形装置に用いられるも のと同様の横這でよく、計部は図に示されていない。A blowing device with a blowing pie IB is arranged at the lower end of the blow mold. . The extruder and blow pipe equipment are similar to those used in traditional blow molding equipment. It may be horizontally similar to the above, and the measuring part is not shown in the figure.
吹込み成形金型装置20は第1図および第2図に示されるように、先ず開いた状 態におかれる。金型装置20の凹部27と凹部29には溶融可塑性押し出し成形 物Eが挿入される。As shown in FIGS. 1 and 2, the blow mold apparatus 20 is first placed in an open state. be placed in a state of Molten plastic extrusion molding is performed in the recesses 27 and 29 of the mold device 20. Object E is inserted.
押し出し成形物Eが金型20内に配置されるのとほぼ同時に、第2図に示される ように押し出し成形機XからパリソンPがその下端が吹込みバイブBに達するよ うに押し出し成形されて配置される。At approximately the same time that extrudate E is placed into mold 20, as shown in FIG. As shown, the parison P from the extrusion molding machine X reaches the blowing vibrator B at its lower end. It is extruded and placed.
側部部材22が相互に接近しパリソンの端部をはさみつぶす、第3図に示される ように吹込みパイプBを通して加圧された空気がパリソンの中心に吹き込まれ通 常の吹込み成形方法による容器の成形が開始される。The side members 22 are shown in FIG. 3 approaching each other and pinching the ends of the parison. Pressurized air is blown into the center of the parison through the blow pipe B. Molding of the container begins using conventional blow molding methods.
空気が吹き込まれ容器が成形されている間に金型の端部部材28は相互に接近し 、さらに側部部材22方向へ移動し、第4区に示されるように、溶融可塑性押し 出し成形物Eは金型の端部部材28と側部部材22によって圧縮されて取扱い用 リング14に形成される。The mold end pieces 28 are brought closer together while air is blown and the container is molded. , further moves in the direction of the side member 22, and as shown in the fourth section, the melted plastic press The molded product E is compressed by the end member 28 and side member 22 of the mold for handling. It is formed into a ring 14.
したがって、吹込み成形方法により容器本体が成形されるのと同時に取扱い用リ ング14が圧縮成形方法により成形され、さらにこのリング14は容器8の本体 の隣接位置に結合される。その結果、リング14は容器8と一体化された部分と なる。従って、本発明は取扱い用リングを有する中空容器の従来の成形方法の多 くの欠点を解消した中空容器成形の改善された方法を企図するものである。工程 の最後は第5図に示されるように完成された容器を取り出すなめに金型部材を開 く工程である。Therefore, at the same time that the container body is formed using the blow molding method, the handling ring is A ring 14 is formed by a compression molding method, and the ring 14 is formed into the main body of the container 8. is joined to the adjacent position. As a result, the ring 14 becomes an integral part of the container 8. Become. Accordingly, the present invention provides an alternative to conventional methods of forming hollow containers with handling rings. The present invention contemplates an improved method for forming hollow containers that eliminates many of the drawbacks. process At the end, the mold member is opened to remove the completed container as shown in Figure 5. This is a very detailed process.
上述の容器は、容器本体の上部隅部に1つのリングのみが設けられているが、必 要に応じて同じ方法によって容器の各端部にリングを1つづつ設けて、1組のリ ングを成形することができる。また、必要に応じて、容器の他の位置にリングを 結合することができる。さらに、図示例のリング14は連続形状で示されている が、非3!続形状の取手を配置することもできる。凹部27と凹部29の周方向 の範囲を制限することにより、間隔を設けて配置された持ち上げ用の複数の取手 を有する容器8を成形することができる。さらに、持ち上げ用の表面形成物ある いは回転用突出縁に関して好ましい方法が図に示されているが、凹部27と凹部 29とによって決定される形状、位置および部材の大きさを変化させることによ り突出縁あるいは持ち上げ用の表面形成物の他の形状が可能となる。Although the container described above is provided with only one ring in the upper corner of the container body, If necessary, use the same method to create a set of rings, one at each end of the container. can be molded. You can also place rings in other locations on the container as needed. Can be combined. Additionally, the ring 14 in the illustrated example is shown in a continuous configuration. But non-3! It is also possible to arrange a continuous handle. Circumferential direction of recess 27 and recess 29 Multiple, spaced lifting handles by limiting the range of A container 8 having a shape can be formed. In addition, there are surface formations for lifting. Alternatively, the preferred method for the rotating protrusion is shown in the figure, but the recess 27 and the recess By changing the shape, position and size of the members determined by Other shapes of raised edges or lifting surface formations are possible.
゛国際調査報告 m、−ms−+A@@II*a+、−mPCT/US 87101434ANN EX To −EE INTERNAT:0NAL SE、’+RCHRE?C RT ON゛International search report m, -ms-+A@@II*a+, -mPCT/US 87101434ANN EX To -EE INTERNAT:0NAL SE,'+RCHRE? C RT ON
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/883,752 US4713207A (en) | 1986-07-07 | 1986-07-07 | Manufacturing method for thermoplastic container with integral lifting ring |
US883,752 | 1986-07-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01500257A true JPH01500257A (en) | 1989-02-02 |
JPH0478094B2 JPH0478094B2 (en) | 1992-12-10 |
Family
ID=25383267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP62504091A Granted JPH01500257A (en) | 1986-07-07 | 1987-06-16 | Container and its forming method |
Country Status (9)
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US (1) | US4713207A (en) |
EP (1) | EP0276243B1 (en) |
JP (1) | JPH01500257A (en) |
KR (1) | KR920005528B1 (en) |
AT (1) | ATE70770T1 (en) |
CA (1) | CA1273462A (en) |
DE (1) | DE3775536D1 (en) |
MX (1) | MX165816B (en) |
WO (1) | WO1988000128A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5057266A (en) * | 1988-07-21 | 1991-10-15 | Sabel Plastechs, Inc. | Method of making a hollow polyethylene terephthalate blow molded article with an integral external projection such as a handle |
US4960376A (en) * | 1989-06-22 | 1990-10-02 | Container Corporation Of America | Apparatus for making a plastic container with integral handling ring |
DE4037482A1 (en) * | 1990-11-24 | 1992-05-27 | Freudenberg Carl Fa | BELLOWS FROM THERMOPLASTIC ELASTOMER |
US5253996A (en) * | 1991-11-15 | 1993-10-19 | The Lerio Corporation | Apparatus for manufacturing containers with thickened flanges |
US5202078A (en) * | 1991-11-15 | 1993-04-13 | Lerio Corporation | Process and apparatus for manufacturing containers with thickened flanges and longitudinal reinforcing ribs and containers thereby |
EP0550776B1 (en) * | 1992-01-10 | 1997-04-09 | Excell Corporation | Method for producing a hollow plastic product having a radially extending portion |
US5227114A (en) * | 1992-07-16 | 1993-07-13 | The Lerio Corporation | Process for manufacturing containers with thickened flanges |
DE4236439A1 (en) * | 1992-10-28 | 1994-05-05 | Kautex Maschinenbau Gmbh | Method and device for producing hollow bodies from thermoplastic material |
US5449087A (en) * | 1993-09-08 | 1995-09-12 | Sonoco Products Company | Molded plastic drum |
US6024245A (en) * | 1994-09-27 | 2000-02-15 | Greif Bros. Corp. Of Ohio, Inc. | One-piece blow-molded closed plastic drum with handling ring and method of molding same |
US6182853B1 (en) | 1999-02-22 | 2001-02-06 | Gcc Drum, Inc. | Plastic drum |
US20120012592A1 (en) * | 2010-07-16 | 2012-01-19 | George David Lisch | Controlled base flash forming a standing ring |
FR3003793B1 (en) | 2013-03-27 | 2015-07-10 | Sidel Participations | REINFORCED BASE CONTAINER AND METHOD FOR MANUFACTURING SUCH CONTAINER |
CN114746343A (en) * | 2019-11-29 | 2022-07-12 | Sig技术股份公司 | Resealable pouring element of a cardboard/plastic composite package with an anchor ring for securely fastening a screw cap |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US2269010A (en) * | 1939-10-20 | 1942-01-06 | Alfred H Sharpe | Method of manufacturing stemmed glassware |
US3050773A (en) * | 1958-07-26 | 1962-08-28 | Reinold Hagen | Process and apparatus for manufacturing blown articles |
GB987133A (en) * | 1962-05-18 | 1965-03-24 | Wilhelm Roth | Improvements relating to casks and methods and mould for their manufacture |
SE7405488L (en) * | 1973-05-24 | 1975-01-16 | Mauser Kg | |
US4209104A (en) * | 1977-04-13 | 1980-06-24 | Hedwin Corporation | Drum assemblies with preformed inserts |
US4228122A (en) * | 1978-03-08 | 1980-10-14 | Mauser Kommandit-Gesellschaft | Method of manufacturing roller chimes for closed head drums |
US4170623A (en) * | 1978-03-20 | 1979-10-09 | Greif Bros. Corporation | Method of blow molding an all plastic drum and compression molding a projection thereon |
US4215089A (en) * | 1978-07-20 | 1980-07-29 | Owens-Illinois, Inc. | Method for blow molding hollow article with integrally bonded attachment |
DE2914938C2 (en) * | 1979-04-12 | 1982-11-11 | Mauser-Werke GmbH, 5040 Brühl | Device for blow molding a barrel |
JPS60168625A (en) * | 1984-02-13 | 1985-09-02 | Ekuseru Kk | Manufacture of hollow molded article provided with composite material and manufacturing device thereof |
DE3439285C2 (en) * | 1984-02-13 | 1994-04-14 | Ex Cell O Corp | Process for producing a hollow body from thermoplastic and device for carrying out the process |
-
1986
- 1986-07-07 US US06/883,752 patent/US4713207A/en not_active Expired - Fee Related
-
1987
- 1987-06-16 JP JP62504091A patent/JPH01500257A/en active Granted
- 1987-06-16 DE DE8787904439T patent/DE3775536D1/en not_active Expired - Fee Related
- 1987-06-16 AT AT87904439T patent/ATE70770T1/en not_active IP Right Cessation
- 1987-06-16 EP EP87904439A patent/EP0276243B1/en not_active Expired - Lifetime
- 1987-06-16 WO PCT/US1987/001434 patent/WO1988000128A1/en active IP Right Grant
- 1987-06-16 KR KR1019880700244A patent/KR920005528B1/en not_active IP Right Cessation
- 1987-07-06 CA CA000541325A patent/CA1273462A/en not_active Expired - Lifetime
- 1987-07-06 MX MX007221A patent/MX165816B/en unknown
Also Published As
Publication number | Publication date |
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DE3775536D1 (en) | 1992-02-06 |
KR880701629A (en) | 1988-11-04 |
KR920005528B1 (en) | 1992-07-06 |
JPH0478094B2 (en) | 1992-12-10 |
WO1988000128A1 (en) | 1988-01-14 |
EP0276243B1 (en) | 1991-12-27 |
MX165816B (en) | 1992-12-07 |
ATE70770T1 (en) | 1992-01-15 |
EP0276243A1 (en) | 1988-08-03 |
CA1273462A (en) | 1990-09-04 |
US4713207A (en) | 1987-12-15 |
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