JPH0976284A - Method and apparatus for manufacture of plastic molded product - Google Patents
Method and apparatus for manufacture of plastic molded productInfo
- Publication number
- JPH0976284A JPH0976284A JP25704595A JP25704595A JPH0976284A JP H0976284 A JPH0976284 A JP H0976284A JP 25704595 A JP25704595 A JP 25704595A JP 25704595 A JP25704595 A JP 25704595A JP H0976284 A JPH0976284 A JP H0976284A
- Authority
- JP
- Japan
- Prior art keywords
- label
- mold
- molded product
- plastic molded
- cavity
- 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.)
- Pending
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14155—Positioning or centering articles in the mould using vacuum or suction
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14901—Coating a sheet-like insert smaller than the dimensions of the adjacent mould wall
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は容器本体やその蓋体
を樹脂の射出成形によって製造する製造方法及びこの製
造方法に適用される製造装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing method for manufacturing a container body and its lid by resin injection molding, and a manufacturing apparatus applied to this manufacturing method.
【0002】[0002]
【従来の技術】プラスチック成形品からなる容器の本体
或いはその蓋体は、商品内容の説明、製造者や製造年月
日等の情報をその表面に表示する必要がある。従来、こ
の表示は上述した情報をラベルに印刷すると共に、容器
本体或いは蓋体を別途、射出成形によって形成し、成形
されたこれらの成形品の表面にラベルを貼り付けること
で行っていた。2. Description of the Related Art The main body of a container made of a plastic molded product or its lid is required to display information such as description of product contents, manufacturer and date of manufacture on its surface. Conventionally, this display is performed by printing the above-mentioned information on a label, separately forming a container body or a lid by injection molding, and sticking the label on the surface of these molded articles.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、従来に
よる表示は、ラベルの印刷、容器等の成形、この容器等
に対するラベルの貼着を行う必要があり、その工程数が
多く、面倒な作業となっていた。特に、ラベルが小さい
場合には、正確な位置への貼着が難しく、適正位置に貼
着できないことによる不良品の多発があり、不良率が大
きいものとなっていた。さらには、貼着したラベルが剥
がれ易く、この剥がれ落ちによって商品価値が低下する
問題を有していた。However, in the conventional display, it is necessary to print a label, mold a container or the like, and attach a label to the container or the like, which requires many steps and is a troublesome work. Was there. In particular, when the label is small, it is difficult to attach the label to the correct position, and it is often impossible to attach the label to the proper position, resulting in a large number of defective products, resulting in a high defect rate. Further, the attached label has a problem that the label is easily peeled off, and this peeling off lowers the commercial value.
【0004】本発明はこのような従来の問題点を考慮し
てなされたものであり、簡単な工程で、成形品への正確
な位置のラベルの取り付けが可能で、しかも、ラベルの
剥がれ落ちのないプラスチック成形品の製造方法を提供
することを目的とする。また、本発明はこの製造方法に
好適に実施できる製造装置を提供することを目的とす
る。The present invention has been made in consideration of such conventional problems, and it is possible to attach a label at an accurate position to a molded product by a simple process, and further, to prevent the label from peeling off. It is an object of the present invention to provide a method for producing a plastic molded article that does not have a plastic molded article. Another object of the present invention is to provide a manufacturing apparatus that can be suitably implemented in this manufacturing method.
【0005】[0005]
【課題を解決するための手段】本発明のプラスチック成
形品の製造方法は、フィルム状のラベルを一方の金型の
成形面に吸着させた状態で型締めしてキャビティを形成
した後、溶融樹脂をキャビティ内に射出して硬化するこ
とを特徴とする。According to the method for producing a plastic molded article of the present invention, a mold label is clamped in a state where a film-shaped label is adsorbed on the molding surface of one mold to form a cavity, and then a molten resin is formed. Is injected into the cavity and cured.
【0006】この方法では、ラベルが一方の金型に吸着
されており、金型に対するラベルの位置変動が抑制され
ている。このように位置決めされたラベルに対し、金型
のキャビティ内に溶融樹脂を射出し、硬化することで、
硬化した樹脂とラベルとが一体化されたプラスチック成
形品を製造することができる。従って、ラベルを簡単
で、しかも確実に定位置に配置できると共に、剥がれ落
ちることもなくなる。In this method, the label is adsorbed on one of the molds, and the positional fluctuation of the label with respect to the mold is suppressed. By injecting molten resin into the cavity of the mold for the label positioned in this way and curing it,
It is possible to manufacture a plastic molded product in which the cured resin and the label are integrated. Therefore, the label can be easily and surely placed in the fixed position and is not peeled off.
【0007】この方法に用いる本発明の製造装置は、フ
ィルム状のラベルを吸着する吸引部が成形面に形成され
た一方の金型と、溶融樹脂射出用のゲートが形成され、
前記一方の金型との突き合わせによりキャビティを形成
する他方の金型と、を備えていることを特徴とする。In the manufacturing apparatus of the present invention used in this method, one mold having a suction portion for sucking a film-like label on the molding surface and a gate for injecting molten resin are formed,
And the other mold forming a cavity by abutting against the one mold.
【0008】この装置では、一方の金型の吸引部が吸着
によりラベルを保持するため、一方の金型に対するラベ
ルの定位置への取り付けができる。この状態で一対の金
型が型締めして、成形用のキャビティを形成するため、
ラベルと樹脂とが一体したプラスチック成形品を成形す
ることができる。In this apparatus, since the suction portion of one mold holds the label by suction, the label can be attached to the one mold at a fixed position. In this state, a pair of molds are clamped to form a molding cavity,
A plastic molded product in which the label and the resin are integrated can be molded.
【0009】[0009]
【発明の実施の形態】図1は本発明における製造装置の
実施の形態の一例を示し、可動金型としてのキャビ型1
と、固定金型としてのコア型2とが対向している。キャ
ビ型1は可動側プラテン(図示省略)に取り付けられた
可動側取付板3に固定されており、コア型2との対向面
が成形面4となっている。このキャビ型1には吸引部と
しての吸引孔5が複数、設けられている。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of an embodiment of a manufacturing apparatus according to the present invention, which is a mold 1 as a movable mold.
And the core mold 2 as a fixed mold face each other. The mold 1 is fixed to a movable mounting plate 3 attached to a movable platen (not shown), and a surface facing the core mold 2 is a molding surface 4. The mold 1 is provided with a plurality of suction holes 5 as suction portions.
【0010】吸引部としての吸引孔5はキャビ型1の厚
さ方向に貫通している。また各吸引孔5内には、ロッド
部材6が挿入されている。ロッド部材6は吸引孔5より
も小径に形成されて吸引孔5に挿入されており、このロ
ッド部材6と吸引孔5との間の隙間からラベル7を吸着
する。この吸着は吸引孔5内を減圧することで行うもの
であり、各吸引孔5には排気路8が連通し、この排気路
8が真空ポンプ(図示省略)に連結されている。この場
合、吸引孔5はラベル7の吸着領域に配設されるもので
ある。A suction hole 5 as a suction portion penetrates the mold 1 in the thickness direction. A rod member 6 is inserted in each suction hole 5. The rod member 6 is formed with a diameter smaller than that of the suction hole 5 and is inserted into the suction hole 5, and the label 7 is adsorbed through the gap between the rod member 6 and the suction hole 5. This suction is performed by depressurizing the inside of the suction holes 5. An exhaust passage 8 communicates with each suction hole 5, and the exhaust passage 8 is connected to a vacuum pump (not shown). In this case, the suction hole 5 is provided in the suction area of the label 7.
【0011】コア型2は固定側プラテン(図示省略)に
取り付けられた固定側取付板9にボルト10等によって
固定されている。このコア型2はキャビ型1との対向面
が成形面11となっており、キャビ型1がコア型2に突
き合うように移動して、型締めされると、コア型2及び
キャビ型1の成形面4、11によって成形用のキャビテ
ィが形成されるようになっている。The core mold 2 is fixed to a fixed side mounting plate 9 mounted on a fixed side platen (not shown) with bolts 10 or the like. The core die 2 has a molding surface 11 facing the cavity die 1. When the cavity die 1 moves so as to face the core die 2 and is clamped, the core die 2 and the cavity die 1 are moved. The molding surfaces 4 and 11 form a cavity for molding.
【0012】コア型2には樹脂を溶融する加熱筒(図示
省略)に連通したランナー12が貫通している。このラ
ンナー12の先端部分はコア型2の成形面11に開口し
ており、この開口部分が溶融樹脂をキャビティに射出す
るゲート13となっている。14はランナー12内の溶
融樹脂を加熱して溶融状態を維持するヒーターであり、
ランナー12の外周部分にコイル状に巻回されている。
15はランナー12内を進退して、ゲート13の開閉を
行うノズルである。A runner 12 communicating with a heating cylinder (not shown) for melting the resin penetrates through the core mold 2. The tip portion of the runner 12 is opened in the molding surface 11 of the core mold 2, and this opening portion serves as a gate 13 for injecting the molten resin into the cavity. 14 is a heater for heating the molten resin in the runner 12 to maintain the molten state,
A coil is wound around the outer peripheral portion of the runner 12.
Reference numeral 15 is a nozzle that moves back and forth in the runner 12 to open and close the gate 13.
【0013】次に、図1〜図4を参照して、プラスチッ
ク成形品の製造を説明する。図1は金型の型開き状態を
示し、ロボットハンド17によってラベル7が金型内に
搬入される。ラベル7はその表面に商品説明、製造者、
製造年月日その他の情報が印刷されている。このラベル
7は紙、不織布、布、樹脂その他の材質によってフィル
ム状に成形されている。ラベル7の材質としては、ゲー
ト13から射出される溶融樹脂と同質のものが成形品と
の一体化の点で好ましい。このため、紙、不織布等或い
は溶融樹脂と異質の樹脂の場合には、少なくとも、ラベ
ル7におけるゲート13側の面に溶融樹脂と同質の樹脂
が積層される。Next, the production of a plastic molded product will be described with reference to FIGS. FIG. 1 shows the mold open state, and the label 7 is carried into the mold by the robot hand 17. Label 7 has a product description, manufacturer, and
The date of manufacture and other information are printed. The label 7 is made of a material such as paper, non-woven fabric, cloth, resin or the like and formed into a film. The material of the label 7 is preferably the same as the molten resin injected from the gate 13 in terms of integration with the molded product. Therefore, in the case of paper, non-woven fabric, or the like, or a resin different from the molten resin, at least the same resin as the molten resin is laminated on the surface of the label 7 on the gate 13 side.
【0014】図1の状態ではラベル7がキャビ型1側に
位置するようにロボットハンド17が向いており、この
ロボットハンド17が移動してラベル7をキャビ型1の
成形面4の所定位置に当接させる。この当接により、キ
ャビ型1の吸引孔5がラベル7を吸引し、これにより図
2に示すように、ラベル7がキャビ型1の成形面4に吸
着される。この吸着によってラベル7はキャビ型1の定
位置に固定され、位置変動することがない。そして、こ
のラベル7の吸着状態で可動側プラテン、可動側取付板
3が移動し、キャビ型1がコア型2方向に接近して突き
合わされ、型締めが行わる。これにより図3に示すよう
に、成形用のキャビティ18がキャビ型1及びコア型2
との間に形成される。In the state of FIG. 1, the robot hand 17 is oriented so that the label 7 is located on the side of the mold 1, and the robot hand 17 moves to bring the label 7 to a predetermined position on the molding surface 4 of the mold 1. Abut. By this contact, the suction hole 5 of the mold 1 sucks the label 7, and as a result, the label 7 is sucked to the molding surface 4 of the mold 1 as shown in FIG. By this suction, the label 7 is fixed at the fixed position of the mold 1, and the position does not change. Then, the movable side platen and the movable side mounting plate 3 move while the label 7 is attracted, the cavity mold 1 approaches in the direction of the core mold 2 and is abutted, and mold clamping is performed. As a result, as shown in FIG. 3, the molding cavity 18 becomes the cavity mold 1 and the core mold 2.
Is formed between
【0015】図3はこの型締めの後、キャビティ18内
に溶融樹脂を射出した状態を示す。溶融樹脂は加熱筒内
のプランジャ(いずれも図示省略)の駆動で、ゲート1
3から噴出してキャビティ18内に充満する。そして、
型締め状態のままで溶融樹脂を冷却して硬化する。この
硬化によりラベル7と硬化樹脂19とが一体化してプラ
スチック成形品20が成形される。この硬化の後に、キ
ャビ型1がコア型2から後退して型開きする。FIG. 3 shows a state where the molten resin is injected into the cavity 18 after the mold clamping. The molten resin is driven by a plunger (both not shown) in the heating cylinder,
It gushes from 3 and fills the inside of the cavity 18. And
The molten resin is cooled and cured in the mold clamped state. By this curing, the label 7 and the cured resin 19 are integrated to form a plastic molded product 20. After this curing, the mold 1 is retracted from the core mold 2 to open the mold.
【0016】図4はこの型開き状態を示し、図1に対し
てロボットハンド17が反転し、その後、型開きした金
型内に進入する。そしてコア型2に保持されているプラ
スチック成形品20を吸着して、コア型2から離し、プ
ラスチック成形品20の離型が行われる。FIG. 4 shows this mold opening state, in which the robot hand 17 is turned upside down with respect to FIG. 1 and then enters the mold opened. Then, the plastic molded product 20 held by the core mold 2 is adsorbed and separated from the core mold 2, and the plastic molded product 20 is released.
【0017】以上の製造では、ラベル7をキャビ型1が
吸着した状態で、溶融樹脂の射出が行われるため、ラベ
ル7をプラスチック成形品20の定位置に確実に取り付
けることができる。このためラベルの位置ずれによる不
良品の発生がなくなり、小さなラベルでも定位置に確実
に取り付けることができる。また、プラスチック成形品
20へのラベル7の取り付けをプラスチック成形品20
の成形と同時に行うことができるため、ラベル7の貼着
作業が不要となって工程が簡略化され、大量製造が可能
となる。しかも、ラベル7がプラスチック成形品20と
一体化しているため、剥がれることがなく、ラベル7の
剥がれ落ちに起因する商品価値の低下を防止することが
できる。In the above manufacturing, the molten resin is injected with the label 7 being adsorbed by the mold 1, so that the label 7 can be securely attached to the plastic molded article 20 at a fixed position. Therefore, defective products due to misalignment of the label are eliminated, and even a small label can be reliably attached at a fixed position. In addition, the label 7 is attached to the plastic molded product 20 by the plastic molded product 20.
Since it can be performed at the same time as molding, the work of attaching the label 7 is unnecessary, the process is simplified, and mass production is possible. Moreover, since the label 7 is integrated with the plastic molded product 20, the label 7 does not peel off, and it is possible to prevent a decrease in commercial value due to peeling off of the label 7.
【0018】本発明は以上の態様に限定されるものでは
なく、種々変形が可能である、例えば、プラスチック成
形品を他の形状とすることができ、プラスチック成形品
の離型をロボットハンドで行うことなく、突き出しロッ
ド或いはストリッパー等によって行っても良い。また、
吸引孔にロッド部材を挿入することなく、吸引孔だけで
ラベルの吸着を行っても良い。The present invention is not limited to the above embodiment, and various modifications are possible. For example, the plastic molded product can be formed into another shape, and the plastic molded product is released from the robot hand. Alternatively, it may be carried out by a protruding rod or a stripper. Also,
The label may be sucked only by the suction hole without inserting the rod member into the suction hole.
【0019】[0019]
【発明の効果】本発明のプラスチック成形品の製造方法
は、一方の金型がラベルを吸着した状態で型締めし、溶
融樹脂を射出して硬化するため、ラベルを成形品の定位
置に確実に取り付けることができ、位置ずれによる不良
品の発生を防止できる。また、プラスチック成形品の成
形と同時に、ラベルの取り付けができるため、製造工程
が簡単となる。さらには、ラベルが成形品と一体となっ
ているため、剥がれることがなく、商品価値が低下する
ことがなくなる。According to the method for producing a plastic molded product of the present invention, the mold is clamped with one of the molds adsorbing the label, and the molten resin is injected to cure the label, so that the label can be securely placed in a fixed position on the molded product. It is possible to prevent the generation of defective products due to displacement. Further, since the label can be attached at the same time when the plastic molded product is molded, the manufacturing process is simplified. Furthermore, since the label is integrated with the molded product, it does not peel off and the commercial value does not decrease.
【0020】本発明の製造装置はラベルを吸着する吸引
部を一方の金型に形成したため、ラベルを正確に、しか
も確実に金型にセットすることができる。In the manufacturing apparatus of the present invention, the suction portion for adsorbing the label is formed on one of the molds, so that the label can be accurately and surely set on the mold.
【図1】製造装置の実施の態様の断面図である。FIG. 1 is a sectional view of an embodiment of a manufacturing apparatus.
【図2】型締めへの移行を示す断面図である。FIG. 2 is a cross-sectional view showing a shift to mold clamping.
【図3】溶融樹脂の射出状態を示す断面図である。FIG. 3 is a cross-sectional view showing an injection state of molten resin.
【図4】成形後の型開き状態の断面図である。FIG. 4 is a cross-sectional view of a mold open state after molding.
1 キャビ型 2 コア型 4 成形面 5 吸引孔 6 ロッド部材 7 ラベル 11 成形面 13 ゲート 18 キャビティ 20 プラスチック成形品 1 Cavity type 2 Core type 4 Molding surface 5 Suction hole 6 Rod member 7 Label 11 Molding surface 13 Gate 18 Cavity 20 Plastic molded product
Claims (2)
面に吸着させた状態で型締めしてキャビティを形成した
後、溶融樹脂をキャビティ内に射出して硬化することを
特徴とするプラスチック成形品の製造方法。1. A plastic characterized in that after a film-shaped label is adsorbed on the molding surface of one of the molds, a mold is clamped to form a cavity, and then a molten resin is injected into the cavity and cured. Molded article manufacturing method.
成形面に形成された一方の金型と、溶融樹脂射出用のゲ
ートが形成され、前記一方の金型との突き合わせにより
キャビティを形成する他方の金型と、を備えていること
を特徴とするプラスチック成形品の製造装置。2. A mold for forming a suction surface for adsorbing a film-like label on a molding surface and a gate for injecting a molten resin are formed, and a cavity is formed by butting the mold on the one side. An apparatus for manufacturing a plastic molded product, comprising the other mold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25704595A JPH0976284A (en) | 1995-09-08 | 1995-09-08 | Method and apparatus for manufacture of plastic molded product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25704595A JPH0976284A (en) | 1995-09-08 | 1995-09-08 | Method and apparatus for manufacture of plastic molded product |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0976284A true JPH0976284A (en) | 1997-03-25 |
Family
ID=17300977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP25704595A Pending JPH0976284A (en) | 1995-09-08 | 1995-09-08 | Method and apparatus for manufacture of plastic molded product |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0976284A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006117308A (en) * | 2004-10-25 | 2006-05-11 | Dainippon Printing Co Ltd | Cover material and its production method |
JP2006116906A (en) * | 2004-10-25 | 2006-05-11 | Dainippon Printing Co Ltd | Manufacturing device of in-mold lid material |
EP1539577A4 (en) * | 2002-07-12 | 2007-08-01 | West Pharm Serv Inc | Method for making plastic overcaps using hot runner back-gated mold technology |
FR2905300A1 (en) * | 2006-09-04 | 2008-03-07 | Mollertech Sas Soc Par Actions | IMPROVED DEVICE FOR MANUFACTURING A MULTILAYER PART COMPRISING A GRANULATED SURFACE LAYER LAYER |
-
1995
- 1995-09-08 JP JP25704595A patent/JPH0976284A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1539577A4 (en) * | 2002-07-12 | 2007-08-01 | West Pharm Serv Inc | Method for making plastic overcaps using hot runner back-gated mold technology |
JP2006117308A (en) * | 2004-10-25 | 2006-05-11 | Dainippon Printing Co Ltd | Cover material and its production method |
JP2006116906A (en) * | 2004-10-25 | 2006-05-11 | Dainippon Printing Co Ltd | Manufacturing device of in-mold lid material |
JP4523379B2 (en) * | 2004-10-25 | 2010-08-11 | 大日本印刷株式会社 | In-mold lid material manufacturing equipment |
FR2905300A1 (en) * | 2006-09-04 | 2008-03-07 | Mollertech Sas Soc Par Actions | IMPROVED DEVICE FOR MANUFACTURING A MULTILAYER PART COMPRISING A GRANULATED SURFACE LAYER LAYER |
EP1894695A3 (en) * | 2006-09-04 | 2010-02-17 | Möllertech Sas | Improved device for manufacturing a multilayer component comprising an outer layer with a granulated surface |
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