JPH0522562B2 - - Google Patents
Info
- Publication number
- JPH0522562B2 JPH0522562B2 JP159385A JP159385A JPH0522562B2 JP H0522562 B2 JPH0522562 B2 JP H0522562B2 JP 159385 A JP159385 A JP 159385A JP 159385 A JP159385 A JP 159385A JP H0522562 B2 JPH0522562 B2 JP H0522562B2
- Authority
- JP
- Japan
- Prior art keywords
- insert
- replacement
- bolt
- cover screw
- mold
- 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
Links
- 241000755266 Kathetostoma giganteum Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/306—Exchangeable mould parts, e.g. cassette moulds, mould inserts
-
- 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
- B29C45/26—Moulds
- B29C45/2673—Moulds with exchangeable mould parts, e.g. cassette moulds
- B29C45/2675—Mounting of exchangeable mould inserts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、射出成形金型におけるインサートの
入替構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an insert replacement structure in an injection mold.
従来の技術
近年、射出成形金型は多品種少量生産へ対応す
る為、金型内の一部形状を入替式として機種展開
する傾向が増えている。BACKGROUND ART In recent years, in order to support the production of a wide variety of products in small quantities, there has been an increasing trend for injection molding molds to be developed with a part of the shape inside the mold being interchangeable.
以下図面を参照しながら上述した従来の入替式
の例について説明する。第４図は一般のインサー
ト入替構造を示しており１は型本体であり、その
中に２の入替インサートが組込まれている。第５
図は第４図のインサート入替部分を拡大して描い
てた図であるが、６は２の入替インサートを固定
するためのボルトであり、７のマイナス溝が切つ
てあり、マイナスドライバーでこのボルトを締め
るようになつている。第６図は第５図と同様であ
るが、８の固定ボルトは六角穴９が設けてあり、
六角レンチで締めるようになつている。 An example of the above-mentioned conventional replacement type will be described below with reference to the drawings. FIG. 4 shows a general insert replacement structure, in which 1 is a mold body, and 2 replacement inserts are incorporated therein. Fifth
The figure is an enlarged drawing of the insert replacement part in Figure 4, and 6 is a bolt for fixing the replacement insert in 2. It has a slotted slot in 7, and you can use a flat head screwdriver to tighten this bolt. It's starting to tighten. Figure 6 is the same as Figure 5, but the fixing bolt 8 has a hexagonal hole 9.
It is designed to be tightened with a hex wrench.
発明が解決しようとする問題点
しかしながら前記のような構造では、第５図の
場合にマイナスドライバーを使用する為、十分な
締め付けトルクが得られず、大型のインサートに
は使用できなかつた。また、ドライバーがすべつ
てマイナス溝が傷み易いという問題もあつた。ま
た第６図の場合には、上記問題が解決できる反
面、六角穴９が大きくなる為に成形品表面にヒケ
が出、且つ成形品の離型も悪くなるという問題が
あつた。Problems to be Solved by the Invention However, with the above structure, since a flat head screwdriver is used in the case shown in FIG. 5, sufficient tightening torque cannot be obtained and it cannot be used for large inserts. There was also the problem that the screwdriver slipped and the slotted slot was easily damaged. In the case of FIG. 6, although the above-mentioned problem can be solved, there is a problem that sink marks appear on the surface of the molded product because the hexagonal hole 9 becomes large, and the mold release of the molded product becomes difficult.
そこで、本発明は、大物インサートにも対応で
きるよう十分な締め付けトルクが得られると同時
に、成形品外観に影響を及ぼさず、型の傷みもな
く入替インサートの固定をする締め付け方法を提
供するものである。 Therefore, the present invention provides a tightening method that can secure a replacement insert without affecting the appearance of the molded product or damaging the mold, while providing sufficient tightening torque to accommodate large inserts. be.
問題点を解決するための手段
上記問題を解決する本発明の技術的な手段は、
まず入替インサートを大径の六角穴付きボルトで
固定し、そのボルト頭部をさらに別のネジでカバ
ーするものである。このネジにはマイナス溝又は
小さな六角穴がある。Means for Solving the Problems The technical means of the present invention for solving the above problems are as follows:
First, the replacement insert is secured with a large-diameter hexagon socket head bolt, and the bolt head is then covered with another screw. This screw has a slotted slot or a small hexagonal hole.
作 用
本発明は前記の構成により、固定ボルトの上に
カバーネジをかぶせることにより、十分な締め付
けトルクが得られると同時に、成形品にはカバー
ネジのマイナス溝又は小さな六角形状しか残らな
い為にヒケは出ない。又、カバーネジは締め付け
力が小さくて済むので、カバーネジが傷むことも
ない。Effects According to the present invention, by covering the fixing bolt with the cover screw, sufficient tightening torque can be obtained, and at the same time, since only the minus groove or small hexagonal shape of the cover screw remains on the molded product, there is no sinkage. Does not appear. Further, since the cover screw requires only a small tightening force, the cover screw will not be damaged.
実施例
以下本発明の一実施例を添付図面にもとづいて
説明する。Embodiment An embodiment of the present invention will be described below based on the accompanying drawings.
第１図において１は型本体、２は入替インサー
ト、３はこのインサートを固定するためのボル
ト、４はこのボルトの頭部に上から組込むカバー
ネジである。そしてカーバーネジの頭部には４ａ
で示すマイナスドライバーによる締め付け用の溝
が切つてある。 In FIG. 1, 1 is a mold body, 2 is a replacement insert, 3 is a bolt for fixing this insert, and 4 is a cover screw that is assembled into the head of this bolt from above. And the head of the carver screw has a 4a
A groove has been cut for tightening with a flat head screwdriver as shown in the figure.
以上のように構成されたインサート固定方式に
おいて以下第１図及び第２図を用いてその作用を
説明する。 The operation of the insert fixing system constructed as described above will be explained below with reference to FIGS. 1 and 2.
第１図は入替インサートを組込んだ後、ボルト
での固定前の状態を示す。第２図はこれを３の固
定ボルトで締め付け、さらに４のカバーネジで締
めた状態を示す。 Figure 1 shows the state after the replacement insert has been assembled and before it is fixed with bolts. Figure 2 shows the state in which this is tightened with the fixing bolt 3 and then the cover screw 4.
以上のように本実施例によれば、大径のボルト
により入替インサートの固定に十分な締め付け力
を与えながら成形品表面にはカバーネジの溝しか
出ない為に、成形品にヒケが出ることもなく、且
つカバーネジの締め付けには力が要らないので、
カバーネジの頭部がマイナスドライバーで傷むこ
ともない。 As described above, according to this example, while the large-diameter bolt provides sufficient tightening force to fix the replacement insert, only the groove for the cover screw is exposed on the surface of the molded product, which may cause sink marks on the molded product. There is no need for force to tighten the cover screws, so
The head of the cover screw will not be damaged by a flathead screwdriver.
以下本発明の第２の実施例について第３図を用
いて説明する。第３図は、第１図における４のカ
バーネジにおいて、４ａの溝の替わりに５の六角
レンチ用の六角穴を設けたものである。組立方
法、作用は第１図のものと同様である。 A second embodiment of the present invention will be described below with reference to FIG. FIG. 3 shows a cover screw 4 in FIG. 1, in which a hexagonal hole 5 for a hexagonal wrench is provided in place of the groove 4a. The assembly method and operation are similar to those shown in FIG.
発明の効果
以上のように本発明は、入替インサートの固定
ボルトの上よりさらにカバーネジをかぶせること
により、大型の入替インサートに対しても十分な
締め付け力を発揮しながら、成形品外観にヒケを
出さず、且つ金型も傷めずに入替インサートを固
定することができる。Effects of the Invention As described above, the present invention provides sufficient tightening force even for large-sized replacement inserts while eliminating sink marks on the exterior of the molded product by covering the cover screws over the fixing bolts of replacement inserts. The replacement insert can be fixed without damaging the mold.
第１図は本発明の第１の実施例におけるボルト
の締め付け前の状態の断面図、第２図は第１図の
締め付け後の状態の断面図、第３図は第１図にお
けるカバーネジの別形状を示す説明図、第４図は
一般的な入替インサートの金型内での組立状態の
説明図、第５図及び第６図は従来の入替インサー
トの固定状態を示す説明図である。
１……型本体、２……入替インサート、３……
固定ボルト、４……カバーネジ、４ａ……溝。
Fig. 1 is a cross-sectional view of the bolt in the first embodiment of the present invention before tightening, Fig. 2 is a cross-sectional view of the bolt in Fig. 1 after tightening, and Fig. 3 is a different cover screw in Fig. 1. FIG. 4 is an explanatory diagram showing the assembled state of a general replacement insert in a mold, and FIGS. 5 and 6 are explanatory diagrams showing the fixed state of a conventional replacement insert. 1...Mold body, 2...Replacement insert, 3...
Fixing bolt, 4...cover screw, 4a...groove.
Claims (1)
と、これを固定するボルトと、このボルトの頭部
をカバーするネジとを有する金型装置。1. A mold device that includes an insert that can be replaced in the product shape, a bolt that fixes the insert, and a screw that covers the head of the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP159385A JPS61160216A (en) | 1985-01-09 | 1985-01-09 | Mold device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP159385A JPS61160216A (en) | 1985-01-09 | 1985-01-09 | Mold device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61160216A JPS61160216A (en) | 1986-07-19 |
| JPH0522562B2 true JPH0522562B2 (en) | 1993-03-30 |
Family
ID=11505805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP159385A Granted JPS61160216A (en) | 1985-01-09 | 1985-01-09 | Mold device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61160216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002220109A (en) * | 2001-01-23 | 2002-08-06 | Tsubakimoto Bulk Systems Corp | Inspection opening detachably attached with gridlike member |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3085614A1 (en) * | 2018-09-10 | 2020-03-13 | Protoform Bourgogne | HYBRID MOLD FOR PLASTIC INJECTION |
-
1985
- 1985-01-09 JP JP159385A patent/JPS61160216A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002220109A (en) * | 2001-01-23 | 2002-08-06 | Tsubakimoto Bulk Systems Corp | Inspection opening detachably attached with gridlike member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61160216A (en) | 1986-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |