JPS6059130B2 - How to assemble an injection mold - Google Patents
How to assemble an injection moldInfo
- Publication number
- JPS6059130B2 JPS6059130B2 JP8222076A JP8222076A JPS6059130B2 JP S6059130 B2 JPS6059130 B2 JP S6059130B2 JP 8222076 A JP8222076 A JP 8222076A JP 8222076 A JP8222076 A JP 8222076A JP S6059130 B2 JPS6059130 B2 JP S6059130B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- injection
- injection molding
- positioning device
- sprue
- 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
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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1781—Aligning injection nozzles with the mould sprue bush
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)
Description
【発明の詳細な説明】
この発明は熱硬化性樹脂あるいは熱可塑性樹脂等の射
出成形に用いられる射出成形角型の組立方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for assembling an injection molded rectangular mold used for injection molding of thermosetting resin or thermoplastic resin.
成形用金型を射出成形機に取付けたとき、ノズルの湯
口と成形用金型の湯口の位置が正確に一致していること
が必要であるため、一般に成形用金型には位置決めのた
めのロケートリング即ち位置決め装置が設けられている
。When a mold is installed in an injection molding machine, it is necessary that the positions of the nozzle sprue and the mold sprue accurately match, so the mold generally has a positioning tool. A locating ring or positioning device is provided.
第１図は射出成形機に従来の成形用金型を取付け、射
出成形を行う状態を示す図で、図において１は射出成形
機、２〜５は射出成形機１の部分で、２はノズルチップ
、２ａはノズル、３はチップ支え、４は射出シリンダ、
５は金型取付盤である。Figure 1 is a diagram showing a state in which a conventional molding die is attached to an injection molding machine and injection molding is performed. In the figure, 1 is the injection molding machine, 2 to 5 are parts of the injection molding machine 1, and 2 is the nozzle. Chip, 2a is a nozzle, 3 is a chip support, 4 is an injection cylinder,
5 is a mold mounting board.
６は射出成形用金型、７〜９は射出成形用金型の部分で
、７は湯口金物、７ａは湯口、８は湯口金物７を支持す
る型駒、９は固定板である。6 is an injection mold, 7 to 9 are parts of the injection mold, 7 is a sprue hardware, 7a is a sprue, 8 is a mold piece that supports the sprue hardware 7, and 9 is a fixing plate.
１０は断熱板、１１は射出成形用金型６の位置決めを行
うロケートリングからなる位置決め装置、１２は位置決
め装置１１の取付ボルト、１３は液状の合成樹脂である
。10 is a heat insulating plate, 11 is a positioning device consisting of a locate ring for positioning the injection mold 6, 12 is a mounting bolt for the positioning device 11, and 13 is a liquid synthetic resin.
なお、位置決め装置１１の外周部は金型取付盤５の内周
部に摺動自在に形成され、位置決め装置１１は固定板９
に湯口金物７と同心に取付けられる。また、射出成形用
金型６を射出成形機１の金型取付盤５に取付けるときは
、射出成形機１のノズルチップ２は射出シリンダ４とと
もに後退しており、射出成形用金型６は位置決め装置１
１の外周部に案内されて、金型取付盤５にボルト （図
示せず）等にり固定される。その結果、射出成形時にノ
ズル２ａと湯口７ａとを正確に位置合せすることができ
る。 ところで以上のように構成された従来のものにお
いては射出成形用金型６にそれぞれ位置決め用の位置決
め装置１１を設ける必要があり、また熱硬化性樹脂を射
出成形する場合には、射出成形用金型を高温に所定時間
維持する必要があり、その間位置決め装置１１を通つて
金型取付盤５に熱が移動し、熱損失が増加するとともに
成形品が部分的に冷却されるため成形品に内部応力が発
生し、品質を低下させる恐れがあつた。The outer circumference of the positioning device 11 is slidably formed on the inner circumference of the mold mounting board 5, and the positioning device 11 is formed on the fixing plate 9.
It is installed concentrically with the sprue hardware 7. Furthermore, when installing the injection mold 6 on the mold mounting board 5 of the injection molding machine 1, the nozzle tip 2 of the injection molding machine 1 is retracted together with the injection cylinder 4, and the injection mold 6 is positioned Device 1
1 and fixed to the mold mounting board 5 with bolts (not shown) or the like. As a result, the nozzle 2a and the sprue 7a can be accurately aligned during injection molding. By the way, in the conventional device configured as described above, it is necessary to provide a positioning device 11 for positioning on each injection mold 6, and when injection molding a thermosetting resin, the injection mold It is necessary to maintain the mold at a high temperature for a predetermined period of time, during which heat is transferred to the mold mounting plate 5 through the positioning device 11, increasing heat loss and partially cooling the molded product, causing internal damage to the molded product. There was a risk that stress would occur and quality would deteriorate.
この発明は上記の欠点に鑑み、湯口を有した射出成形
角型の所定位置に電磁石を有する位置決め装置を装着し
た後に位置決め装置を利用して射出成形角型を型取付盤
に付して位置決めしてこれら射出成形角型と型取付盤と
を結合し、その後位置決め装置を射出成形用型から取り
外した後、射出側のノズルと湯口とを連通させる射出成
形用型の組立方法を得ることを目的とするものである。In view of the above-mentioned drawbacks, the present invention has been developed by attaching a positioning device having an electromagnet to a predetermined position of an injection molding square mold having a sprue, and then using the positioning device to position the injection molding square mold by attaching it to a mold mounting plate. The object of the present invention is to obtain a method for assembling an injection molding mold in which these injection molding square molds and a mold mounting plate are joined together, the positioning device is removed from the injection molding mold, and the nozzle on the injection side and the sprue are communicated with each other. That is.
以下、この発明の方法の一実施例を第２図、第３図によ
り説明する。図において第１図と同一符号は同一または
相当部分を示し、１４は射出成形機１の金型取付盤５に
成形用金型６の取付位置を案内する位置決め装置、１５
〜１９は位置決め装置１４の部分で、１５は本体、１６
は本体１５の成形用金型６との対向部に設けられた電磁
装置で、電磁装置は電磁石で構成されている。１７は本
体１５の中心部に湯口６ａを押圧して摺動自在に取付け
られた位置決め用ガイドピン、１８はガイドピン１７を
湯口６ａに押圧する圧縮ばね、１９は本体１５を運搬時
に保持するとともに、電磁装置１６の付勢および消勢を
行う把手である。An embodiment of the method of the present invention will be described below with reference to FIGS. 2 and 3. In the figure, the same reference numerals as in FIG. 1 indicate the same or equivalent parts, and 14 is a positioning device for guiding the mounting position of the molding die 6 to the mold mounting plate 5 of the injection molding machine 1;
~19 is the positioning device 14 part, 15 is the main body, 16
is an electromagnetic device provided at a portion of the main body 15 facing the molding die 6, and the electromagnetic device is composed of an electromagnet. 17 is a positioning guide pin that is slidably attached to the center of the main body 15 by pressing the sprue 6a, 18 is a compression spring that presses the guide pin 17 against the sprue 6a, and 19 is used to hold the main body 15 during transportation. , a handle for energizing and deenergizing the electromagnetic device 16.
なお、上記金型取付盤５と射出成形機所定の位置関係に
ある。つぎに以上のように構成された位置決め装置１４
により成形用金型６を射出成形機１の金型取付盤に取付
ける方法について説明する。Note that the mold mounting plate 5 and the injection molding machine are in a predetermined positional relationship. Next, the positioning device 14 configured as above
A method for attaching the molding die 6 to the die mounting plate of the injection molding machine 1 will be explained below.
まず、位置決め装置１４の電磁装置１６を消勢した状態
において、ガイドピン１７の頭部１７ａを湯口金物７の
湯口７ａの位置に一致させたのち、圧縮ばね１８のばね
圧に抗して、位置決め装置１４を射出成−形用金型６に
押圧し、その位置において把手１９の操作により、電磁
装置１６を付勢させ、位置決め装置１４を射出成形用金
型６に吸着させる。つぎに、射出成形用金型６を位置決
め装置１４とともにつり上げ、位置決め装置１４の外周
面を案内．として、金型取付盤５の内周部に挿入し、断
熱板１０を介して金型取付盤５に接触させ、ボルト等の
締付具により射出成形用金型６を金型取付盤５に固定す
る。つぎに把手１９の操作により電磁装置１６を消勢さ
せ、位置決め装置１４を射出成形！用金型６から取外す
。次いで、射出シリンダ４を前進させ、そのノズル２ａ
と湯口７ａとを連通させる。なお、射出シリンダ４を前
進させたとき、上記のように金型取付盤５と射出成形機
１は所定の位置関係にあるので、ノズル２ａと湯口７ａ
ｆ）−，位置は第３図に示されるように完全に一致する
。また、第３図に示すように、ノズル２ａと湯口７ａと
を連通させた状態において、射出シリンダ４と型取付盤
５、固定板９、断熱板１０との間には空隙が形成されて
いる。以上のように位置決め装置１４を射出成形用金型
６に装着することにより、射出成形用金型６を正しい位
置に取付けることができる。なお、位置決め装置と射出
成形型との位置決め゛は上記実施例ではガイドピン１７
を利用して行つているが、例えば湯口金物７の外周面を
利用したり、あるいは射出成形型のノズル側の面に溝を
設けてこの溝を利用する等の手段もあり、上記位置決め
は上記実施例のものに限られるものではないい。First, with the electromagnetic device 16 of the positioning device 14 deenergized, the head 17a of the guide pin 17 is aligned with the position of the sprue 7a of the sprue hardware 7, and then the positioning is performed against the spring pressure of the compression spring 18. The device 14 is pressed against the injection mold 6, and at that position, the electromagnetic device 16 is biased by operating the handle 19, and the positioning device 14 is attracted to the injection mold 6. Next, the injection mold 6 is lifted together with the positioning device 14, and the outer peripheral surface of the positioning device 14 is guided. As shown in FIG. Fix it. Next, the electromagnetic device 16 is deenergized by operating the handle 19, and the positioning device 14 is injection molded! Remove from the mold 6. Next, the injection cylinder 4 is advanced, and its nozzle 2a
and the sprue 7a are communicated with each other. Note that when the injection cylinder 4 is advanced, the mold mounting plate 5 and the injection molding machine 1 are in a predetermined positional relationship as described above, so the nozzle 2a and the sprue 7a are
f)-, the positions match perfectly as shown in FIG. Further, as shown in FIG. 3, a gap is formed between the injection cylinder 4, the mold mounting plate 5, the fixing plate 9, and the heat insulating plate 10 when the nozzle 2a and the sprue 7a are in communication. . By attaching the positioning device 14 to the injection molding die 6 as described above, the injection molding die 6 can be attached to the correct position. Note that the positioning between the positioning device and the injection mold is performed using the guide pin 17 in the above embodiment.
However, there are also other means such as using the outer peripheral surface of the sprue hardware 7, or using grooves provided on the nozzle side surface of the injection mold. It is not limited to the examples.
以上のように、この発明の方法によれば、位置決め装置
を、一旦射出成形用型に装着し、射出成形用型を型取付
盤に装着後に取り外すので、熱硬化性樹脂を射出成形す
る場合に、従来のものに比べ射出成形用型から型取付盤
への熱漏洩が減少すると共に、その結果成形品の部分的
な冷却が防止されるので成形品の品質を高めることがで
き、更に射出成形時には位置決め装置は取り外されてい
るので従来のものに射出シリンダを十分に射出成形用金
型に接近させることができ、従つて、従来のものに比べ
湯口の部分の体積を減少させることができるので、成形
品の単価を構成する成形材料費を低減することができる
。As described above, according to the method of the present invention, the positioning device is once attached to the injection molding die and removed after the injection molding die is attached to the die mounting board, so that when injection molding a thermosetting resin, Compared to conventional models, heat leakage from the injection mold to the mold mounting plate is reduced, and as a result, partial cooling of the molded product is prevented, improving the quality of the molded product. Sometimes the positioning device is removed so that the injection cylinder can be brought closer to the injection mold than in the conventional one, and therefore the volume of the sprue area can be reduced compared to the conventional one. , it is possible to reduce the molding material cost that constitutes the unit price of the molded product.
第１図は従来の装置による射出成形時の状態を示す断面
図、第２図、第３図はこの発明の一実施例を示すもので
、第２図は位置決め装置により射出成形機に射出成形用
型を取付ける状態を示す断面図、第３図は射出成形時の
状態を示す断面図である。
図において、同一符号は同一または相当部分を示し、１
は射出成形機、２ａはノズル、５は型取付盤、６は射出
成形用型、７ａは湯口、１４は位置決め装置である。Fig. 1 is a cross-sectional view showing the state during injection molding using a conventional device, Figs. FIG. 3 is a cross-sectional view showing the state in which the mold is attached, and FIG. 3 is a cross-sectional view showing the state during injection molding. In the figures, the same reference numerals indicate the same or corresponding parts, 1
2a is an injection molding machine, 2a is a nozzle, 5 is a mold mounting board, 6 is an injection mold, 7a is a sprue, and 14 is a positioning device.
Claims (1)
する位置決め装置を装着した後に上記位置決め装置を利
用して上記射出成形角型を型取付盤に対して位置決めし
てこれら射出成形角型と型取付盤とを結合し、この後上
記位置決め装置を上記射出成形角型から取り外した後、
射出側のノズルと上記湯口とを連通させる射出成形角型
の組立方法。1. After attaching a positioning device having an electromagnet to a predetermined position of an injection molding square mold having a sprue, the positioning device is used to position the injection molding square mold with respect to a mold mounting board, and the injection molding square mold is After connecting the mold mounting plate and removing the positioning device from the injection molding square mold,
A method for assembling an injection molded square mold that communicates the nozzle on the injection side with the sprue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8222076A JPS6059130B2 (en) | 1976-07-09 | 1976-07-09 | How to assemble an injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8222076A JPS6059130B2 (en) | 1976-07-09 | 1976-07-09 | How to assemble an injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS537761A JPS537761A (en) | 1978-01-24 |
| JPS6059130B2 true JPS6059130B2 (en) | 1985-12-24 |
Family
ID=13768316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8222076A Expired JPS6059130B2 (en) | 1976-07-09 | 1976-07-09 | How to assemble an injection mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6059130B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4926230B2 (en) * | 2009-11-13 | 2012-05-09 | 三菱電機株式会社 | refrigerator |
-
1976
- 1976-07-09 JP JP8222076A patent/JPS6059130B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS537761A (en) | 1978-01-24 |
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