JP2934233B1 - Injection mold - Google Patents
Injection moldInfo
- Publication number
- JP2934233B1 JP2934233B1 JP17593298A JP17593298A JP2934233B1 JP 2934233 B1 JP2934233 B1 JP 2934233B1 JP 17593298 A JP17593298 A JP 17593298A JP 17593298 A JP17593298 A JP 17593298A JP 2934233 B1 JP2934233 B1 JP 2934233B1
- Authority
- JP
- Japan
- Prior art keywords
- label
- container
- cavity
- peripheral surface
- holding portion
- 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
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
【要約】
【課題】 容器のラベルが不要な箇所にラベルを貼着し
たり、容器のラベルが必要な箇所にラベルが貼着されな
いことのない射出成形金型を提供する。
【解決手段】 コアとキャビティとを具え、キャビティ
の内周面に容器成形時にラベルを保持するラベル保持部
を有する射出成形金型であって、キャビティ内周面のラ
ベル保持部にラベル移動制止用の凸部を形成した。The present invention provides an injection mold in which a label is not attached to a portion of a container where a label is not required, or a label is not attached to a portion of a container where a label is required. SOLUTION: This is an injection molding die having a core and a cavity, and having a label holding portion for holding a label at the time of molding the container on the inner peripheral surface of the cavity. Was formed.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は射出成形金型に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection mold.
【０００２】[0002]
【従来の技術】従来図１に示すように、外周面に斜線で
示したラベルＬが、その両端末が平行となってそれらの
間に、均一幅の間隔Ａが形成されて一体的に貼着され
た、コップのような容器Ｃが使用されている。そしてこ
のような容器Ｃは、図５に示すように、コア１とキャビ
ティ２とを具え、キャビティ２の内周面に容器成形時
に、吸気孔４による吸気によって、ラベルＬを吸引して
保持するラベル保持部３を有する金型を装着した射出成
形機によって成形されている。この金型のコア１の外周
面及びキャビティ２の内周面は平滑となっている。2. Description of the Related Art Conventionally, as shown in FIG. 1, a label L indicated by diagonal lines on an outer peripheral surface is attached integrally with a gap A having a uniform width formed between both ends thereof. A worn cup-like container C is used. As shown in FIG. 5, such a container C includes a core 1 and a cavity 2, and at the time of molding the container on the inner peripheral surface of the cavity 2, sucks and holds the label L by suction through the suction hole 4. It is molded by an injection molding machine equipped with a mold having a label holding section 3. The outer peripheral surface of the core 1 and the inner peripheral surface of the cavity 2 of this mold are smooth.
【０００３】そして容器Ｃの成形に際しては、キャビテ
ィ２が型開きされている状態で、コア１の外周面にラベ
ルＬを巻着し、キャビティ２の型閉後キャビティ２に設
けた吸気孔４からの吸気によって、ラベルＬをコア１の
外周面からキャビティ２の内周面に移動して吸引し、こ
のような状態で金型内に固定型８のノズル９から樹脂を
注入し、キャビティ２によるラベルＬの吸引を解除し
て、ラベルＬが外周面に一体的に貼着された容器Ｃを成
形することとなる。At the time of molding the container C, a label L is wound around the outer peripheral surface of the core 1 with the cavity 2 being opened, and after closing the mold of the cavity 2, the suction hole 4 is formed in the cavity 2. The label L is moved from the outer peripheral surface of the core 1 to the inner peripheral surface of the cavity 2 by the air suction, and is sucked. In this state, the resin is injected from the nozzle 9 of the fixed die 8 into the mold. The suction of the label L is released to form the container C in which the label L is integrally attached to the outer peripheral surface.
【０００４】[0004]
【発明が解決しようとする課題】ところでこのような金
型では、ラベルＬのコア１の外周面から、キャビティ２
の内周面への移動吸引時に、キャビティの内周面に吸引
されているラベルＬが、変位して容器Ｃの外周面に正確
に位置決めされるのが困難であって、ラベルＬの両端末
間の間隔Ａ′が図６に示すように、平行にならないで不
均一な幅となって容器Ｃに貼着されることがある。この
ようにして成形された容器Ｃにおいては、（１）容器Ｃ
のフランジの裏面のラベルＬが不要な箇所ａに、ラベル
Ｌの端末の上縁が接着したり、（２）容器Ｃの外周面の
ラベルＬが必要な箇所ｂ，ｃ等にラベルＬが貼着されな
いというような問題が発生する。By the way, in such a mold, the cavity 2 extends from the outer peripheral surface of the core 1 of the label L.
It is difficult for the label L sucked on the inner circumferential surface of the cavity to be displaced and accurately positioned on the outer circumferential surface of the container C during the movement suction of the label L to the inner circumferential surface. As shown in FIG. 6, the interval A ′ may not be parallel and may have an uneven width and may be stuck to the container C. In the container C thus formed, (1) the container C
The upper edge of the end of the label L is adhered to the portion a where the label L is unnecessary on the back surface of the flange, or (2) the label L is attached to the portion b or c where the label L is required on the outer peripheral surface of the container C. A problem such as not being worn occurs.
【０００５】そこでこの発明の目的は、前記のような従
来の射出成形金型のもつ問題を解消し、容器のラベルが
不要な箇所にラベルを貼着したり、容器のラベルが必要
な箇所にラベルが貼着されないことのない射出成形金型
を提供するにある。Accordingly, an object of the present invention is to solve the above-mentioned problems of the conventional injection molding die, and to attach a label to a place where a container label is unnecessary or to place a label on a place where a container label is required. An object of the present invention is to provide an injection-molding mold in which a label is not stuck.
【０００６】[0006]
【課題を解決するための手段】この発明は前記のような
目的を達成するために、コアとキャビティとを具え、キ
ャビティの内周面に容器成形時にラベルを吸引保持する
ラベル保持部を有する射出成形金型において、請求項１
に記載の発明は、前記ラベル保持部にラベル移動制止用
の凸部を形成したことを特徴とするものである。According to the present invention, there is provided an injection molding apparatus having a core and a cavity, and having a label holding portion on an inner peripheral surface of the cavity for sucking and holding a label during molding of a container. Claim 1 in a molding die.
The invention described in (1) is characterized in that a convex portion for preventing label movement is formed on the label holding portion.
【０００７】請求項２に記載の発明は、ラベル保持部に
ラベルの軸線方向に延びる凹溝を形成したことを特徴と
するものである。The invention according to a second aspect is characterized in that a concave groove extending in the axial direction of the label is formed in the label holding portion.
【０００８】[0008]
【発明の実施の形態】図２，３に示すこの発明の第１実
施形態において、前記従来のものと同様の部分について
は、同一の符号を付して説明を省略し、主として異なる
部分について説明する。この実施形態においては、キャ
ビティ２のラベル保持部３のラベルＬの両端末間の間隔
Ａに対応する部位に、これと同一の幅を有するラベル移
動制止用の凸部６を設けた。この凸部６はラベルＬの軸
線方向において、ほぼラベルＬと同じ長さに延びている
が、これよりもっと短いものとなっていても差支えな
い。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the first embodiment of the present invention shown in FIGS. 2 and 3, the same parts as those of the prior art are denoted by the same reference numerals, and description thereof will be omitted. I do. In this embodiment, at the portion corresponding to the distance A between both ends of the label L of the label holding portion 3 of the cavity 2, a convex portion 6 for suppressing label movement having the same width as this is provided. The protrusion 6 extends in the axial direction of the label L to substantially the same length as the label L, but may be shorter than this.
【０００９】このようなものによって、容器Ｃを成形す
るに際しては、型開きされているキャビティ２の内周面
のラベル保持部３に、図３に示すようにラベルＬの両端
末が、凸部６の両側面に当接するように巻着して、キャ
ビティ２を型閉めし、吸気孔４によってキャビティ２の
ラベル保持部３にラベルＬを吸引装着し、従来のものと
同様に金型内に樹脂を注入して、ラベルＬが外周面に一
体的に貼着された容器Ｃを成形し、この成形工程の終了
後キャビティ２によるラベルＬの吸着を解除して、容器
Ｃを金型外に取出す。When the container C is formed by the above-described method, both ends of the label L are provided on the label holding portion 3 on the inner peripheral surface of the opened cavity 2 as shown in FIG. 6, the cavity 2 is closed with the mold, and the label L is suction-fitted into the label holding portion 3 of the cavity 2 by the suction hole 4, and is placed in the mold in the same manner as the conventional one. The resin is injected to form a container C in which the label L is integrally adhered to the outer peripheral surface. After the completion of the molding process, the suction of the label L by the cavity 2 is released, and the container C is removed from the mold. Take out.
【００１０】前記のようにして容器Ｃを形成するに際し
ては、樹脂の注入時にラベルＬの両端末が凸部６の両側
面に当接した状態で、キャビティ２のラベル保持部３に
吸引装着されているので、ラベルＬの両端末が凸部６に
よって変位することがなく、両端末間の間隔Ａは均一幅
に維持されながら、成形時においてラベルＬがキャビテ
ィ２に強固に保持されて変位することがない。したがっ
て前記した従来のもののように容器ＣのラベルＬが不要
な箇所に、ラベルＬを貼着したり、容器ＣのラベルＬが
必要な箇所に、ラベルＬが貼着されないというような現
象が発生することがない。When the container C is formed as described above, the two ends of the label L are abutted on the label holding portion 3 of the cavity 2 in a state where both ends of the label L are in contact with both side surfaces of the convex portion 6 at the time of resin injection. As a result, both ends of the label L are not displaced by the convex portions 6, and the label L is firmly held in the cavity 2 and displaced during molding while the interval A between both ends is maintained at a uniform width. Nothing. Therefore, there occurs such a phenomenon that the label L is stuck to a place where the label L of the container C is not necessary as in the above-mentioned conventional one, or the label L is not stuck to a place where the label L of the container C is necessary. Never do.
【００１１】図４に示すこの発明の第２実施形態は、ラ
ベル保持部３にラベルＬの軸線方向に延びる凹溝７を形
成したものであって、図面では凹溝７が２個設けられて
いるが、これ以外の数であってもよい。このようなもの
において、前記従来のものと同様にして容器Ｃを成形す
るのであるが、その際吸気孔４からの吸気が凹溝７を介
してラベルＬを吸引することとなるため、ラベルＬに対
する吸引面積が増大して、第１実施形態と同様に、成形
時においてラベルＬがキャビティに強固に保持されて変
位することがない。したがって容器ＣのラベルＬが不要
な箇所に、ラベルＬを貼着したり、容器ＣのラベルＬが
必要な箇所に、ラベルＬが貼着されないというような現
象が発生することがない。In a second embodiment of the present invention shown in FIG. 4, a groove 7 extending in the axial direction of the label L is formed in the label holding portion 3, and two grooves 7 are provided in the drawing. However, other numbers may be used. In such a case, the container C is molded in the same manner as the conventional one, but at this time, the suction from the suction hole 4 sucks the label L through the concave groove 7, so that the label L As in the first embodiment, the label L is firmly held in the cavity and is not displaced during molding, as in the first embodiment. Therefore, the phenomenon that the label L is stuck to a place where the label L of the container C is not required or the label L is not stuck to the place of the container C where the label L is required does not occur.
【００１２】[0012]
【発明の効果】この発明は前記のようであって、コアと
キャビティとを具え、キャビティの内周面に容器成形時
にラベルを吸引保持するラベル保持部を有する射出成形
金型において、請求項１に記載の発明は、前記ラベル保
持部にラベル移動制止用の凸部を形成し、請求項２に記
載の発明は、ラベル保持部にラベルの軸線方向に延びる
凹溝を形成したので、成形時においてラベルＬがキャビ
ティに強固に保持されて変位することがなく、したがっ
て容器ＣのラベルＬが不要な箇所に、ラベルＬを貼着し
たり、容器ＣのラベルＬが必要な箇所に、ラベルＬが貼
着されないというような現象が発生することがないとい
う効果がある。As described above, the present invention relates to an injection mold having a core and a cavity, and having a label holding portion on the inner peripheral surface of the cavity for sucking and holding a label during container molding. In the invention described in (1), a convex portion for suppressing label movement is formed in the label holding portion, and in the invention described in (2), a concave groove extending in the axial direction of the label is formed in the label holding portion. The label L is firmly held in the cavity and is not displaced. Therefore, the label L is attached to a place where the label L of the container C is unnecessary, or the label L is placed at a place where the label L of the container C is needed. There is an effect that a phenomenon such as no sticking does not occur.
【図１】この発明によって成形された容器の正面図であ
って、ラベルは斜線で示されている。FIG. 1 is a front view of a container formed according to the present invention, wherein the label is indicated by hatching.
【図２】この発明の第１実施形態の縦断正面図である。FIG. 2 is a vertical sectional front view of the first embodiment of the present invention.
【図３】同上のキャビティ内にラベルを装着したものの
縦断正面図である。FIG. 3 is a vertical sectional front view of a state where a label is mounted in the cavity.
【図４】この発明の第２実施形態のキャビティの縦断正
面図である。FIG. 4 is a vertical sectional front view of a cavity according to a second embodiment of the present invention.
【図５】この発明と同種の従来の射出成形金型の図２と
同様の縦断正面図である。5 is a vertical sectional front view similar to FIG. 2 of a conventional injection mold of the same kind as the present invention.
【図６】この発明と同様の従来の容器の不良品の１例の
正面図である。FIG. 6 is a front view of an example of a defective conventional container similar to the present invention.
Ａ 間隔 Ｃ 容器 Ｌ ラベル １ コア ２ キャビティ ３ ラベル保持部 ４ 吸気孔 ６ 凸部 ７ 凹溝 ８ 固定型 ９ ノズル A Interval C Container L Label 1 Core 2 Cavity 3 Label Holder 4 Intake Hole 6 Convex Portion 7 Groove 8 Fixed Type 9 Nozzle
Claims (2)
の内周面に容器成形時にラベルを吸引保持するラベル保
持部を有する射出成形金型において、前記ラベル保持部
にラベル移動制止用の凸部を形成したことを特徴とする
射出成形金型。1. An injection molding die having a core and a cavity, and having a label holding portion on the inner peripheral surface of the cavity for sucking and holding a label at the time of molding a container, wherein the label holding portion has a convex portion for preventing label movement. An injection mold characterized by being formed.
の内周面に容器成形時にラベルを吸引保持するラベル保
持部を有する射出成形金型において、前記ラベル保持部
にラベルの軸線方向に延びる凹溝を形成したことを特徴
とする射出成形金型。2. An injection molding die having a core and a cavity, and having a label holding portion on an inner peripheral surface of the cavity for sucking and holding a label at the time of forming a container, wherein the label holding portion has a groove extending in the axial direction of the label. An injection mold characterized by forming:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17593298A JP2934233B1 (en) | 1998-06-23 | 1998-06-23 | Injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17593298A JP2934233B1 (en) | 1998-06-23 | 1998-06-23 | Injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2934233B1 true JP2934233B1 (en) | 1999-08-16 |
| JP2000006197A JP2000006197A (en) | 2000-01-11 |
Family
ID=16004783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17593298A Expired - Fee Related JP2934233B1 (en) | 1998-06-23 | 1998-06-23 | Injection mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2934233B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4954670B2 (en) * | 2006-10-31 | 2012-06-20 | 株式会社吉野工業所 | Container with in-mold label |
-
1998
- 1998-06-23 JP JP17593298A patent/JP2934233B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000006197A (en) | 2000-01-11 |
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