JPH0584776A - Mold structure in insert injection molding of laminated steel plate - Google Patents
Mold structure in insert injection molding of laminated steel plateInfo
- Publication number
- JPH0584776A JPH0584776A JP25082691A JP25082691A JPH0584776A JP H0584776 A JPH0584776 A JP H0584776A JP 25082691 A JP25082691 A JP 25082691A JP 25082691 A JP25082691 A JP 25082691A JP H0584776 A JPH0584776 A JP H0584776A
- Authority
- JP
- Japan
- Prior art keywords
- laminated steel
- plate
- steel plate
- mold
- injection molding
- 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
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14418—Sealing means between mould and 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
- 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
- B29C45/14467—Joining articles or parts of a single article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、積層鋼板のインサー
ト射出成形における金型構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold structure for insert injection molding of laminated steel sheets.
【０００２】[0002]
【従来の技術】図４は、従来の積層鋼板インサート射出
成形の構造を示す断面図である。図４において、１は成
形機の固定側プレートに取付けられる固定側取付板、２
は固定側取付板１に保持された固定側型板、３は成形機
の型締め力によって固定側型板に押し付けられている可
動側型板、４は可動側型板３の背面側に空間を作る為の
２本のスペーサブロック、５は成形機の可動側プレート
に取付けられ可動側型板３を保持している可動側取付
板、６，７はスペーサブロック４の間の空間で移動する
エジェクタプレート、８は固定側型板に保持されたキャ
ビ、９はキャビ８及びインサートと型締め圧力で密着し
て樹脂部分を形作るコア、１０はキャビ８及びコア９の
間の空間に挿入され、製品の１部品でありプレス加工さ
れた薄鋼板を多数積層した積層鋼板、１１は積層鋼板を
挿入し型締めを行った時に空間となり樹脂が射出される
部分、１２はコア９の穴及びエジェクタプレート６，７
に保持されたエジェクタピンである。2. Description of the Related Art FIG. 4 is a sectional view showing the structure of conventional laminated steel plate insert injection molding. In FIG. 4, 1 is a fixed-side mounting plate that is mounted on the fixed-side plate of the molding machine, and 2
Is a fixed-side template held by the fixed-side mounting plate 1, 3 is a movable-side template pressed against the fixed-side template by the mold clamping force of the molding machine, and 4 is a space on the back side of the movable-side template 3. Two spacer blocks 5 for making a movable side mounting plate which is mounted on the movable side plate of the molding machine and holds the movable side template 3, and 6 and 7 move in the space between the spacer blocks 4. An ejector plate, 8 is a cab held on a stationary mold plate, 9 is a core that forms a resin portion by closely contacting the cavities 8 and the insert with mold clamping pressure, and 10 is inserted in a space between the cavities 8 and the core 9. Laminated steel plate, which is one part of the product and is formed by laminating a large number of pressed thin steel plates, 11 is a space where resin is injected when a laminated steel plate is inserted and mold clamping is performed, and 12 is a hole of the core 9 and an ejector plate 6,7
It is an ejector pin held by.
【０００３】従来の積層鋼板インサート射出成形金型
は、上記のように構成され、例えば、固定側型板２と可
動側型板３で作る金型内に積層鋼板１０を挿入し型締め
を行った後、成形機より樹脂を金型内に射出し硬化させ
た後、型開きを行い成形機のエジェクタピン１２の動作
により、金型内のエジェクタプレート６，７、エジェク
タピン１２により、可動側型板３より積層銅板１１に成
形された製品を取り出すことができる。The conventional laminated steel plate insert injection molding die is constructed as described above. For example, the laminated steel plate 10 is inserted into a mold made of the fixed side mold plate 2 and the movable side mold plate 3 to perform mold clamping. After the resin is injected into the mold from the molding machine and cured, the mold is opened, and the ejector plates 6 and 7 and the ejector pin 12 in the mold move the movable side by the operation of the ejector pin 12 of the molding machine. The product molded on the laminated copper plate 11 can be taken out from the template 3.
【０００４】[0004]
【発明が解決しようとする課題】上記のような従来の積
層鋼板インサート射出成形における金型構造では、薄鋼
板素材の板圧偏差が積層数分加算されて厚さが変化す
る。この為、厚い場合は金型が完全に閉じず、成形する
と中心の穴がふさがらないことがある。逆に薄い場合
は、積層鋼板１０とキャビ８、コア９の間に隙間が出来
て、成形すると積層鋼板１０の上にバリが発生するとい
う問題点があった。In the die structure in the conventional laminated steel plate insert injection molding as described above, the plate pressure deviation of the thin steel plate material is added by the number of laminated layers to change the thickness. Therefore, if it is thick, the mold may not be completely closed, and the center hole may not be closed when molding. On the contrary, when the thickness is thin, a gap is formed between the laminated steel plate 10 and the cavity 8 and the core 9, and there is a problem that burrs are generated on the laminated steel plate 10 when forming.
【０００５】この発明は、かかる従来の問題点を解決す
るためになされたものであり、積層鋼板１０の積層厚さ
が変化しても、樹脂によるバリの発生しない成形品を得
ることを目的としている。The present invention has been made in order to solve the above conventional problems, and an object thereof is to obtain a molded product in which burrs due to resin do not occur even when the laminated thickness of the laminated steel sheet 10 changes. There is.
【０００６】[0006]
【課題を解決するための手段】この発明は、互いに対向
して接触し樹脂部形状を型取った空隙を形成して積層鋼
板がインサートされるキャビ及びコア、このキャビ及び
コアを支持する固定側型板と可動側型板とを備え、固定
側型板の射出路から空隙に樹脂を射出成型する積層鋼板
のインサート射出成形における金型構造において、固定
側型板にスプリングにより積層鋼板を押圧する押えプレ
ートを設けた積層鋼板のインサート射出成形における金
型構造を構成したものである。SUMMARY OF THE INVENTION The present invention is directed to a cabinet and a core into which laminated steel sheets are inserted by forming a void having a shape of a resin portion in contact with each other, and a fixed side supporting the cabinet and the core. In a mold structure in insert injection molding of a laminated steel sheet that includes a template and a movable template and injection-molds a resin into an air gap from a fixed-side template injection path, the laminated steel sheet is pressed against the stationary template by a spring. It is a structure of a mold in insert injection molding of a laminated steel plate provided with a holding plate.
【０００７】[0007]
【作用】上記のように構成された積層鋼板のインサート
射出成形用の金型に積層厚さの違う積層鋼板を挿入する
と、型締め時にスプリングを介して取付けられた押えプ
レートが摺動する。この結果、積層鋼板の積層厚さの変
化をスプリングの撓みで吸収し、金型は完全に閉じるの
で成形品にバリが発生しない。When a laminated steel sheet having a different laminated thickness is inserted into a die for injection molding of a laminated steel sheet constructed as described above, the holding plate attached via a spring slides during mold clamping. As a result, the change in the laminated thickness of the laminated steel plates is absorbed by the bending of the spring, and the mold is completely closed, so that burrs do not occur in the molded product.
【０００８】[0008]
【実施例】図１はこの発明の一実施例を示す断面図で、
前述の従来装置と同じ部分に同一符号が付され説明が一
部重複するが、やや詳しく説明する。図１と図２におい
て、１は固定側取付板、２は取付板１に保持された固定
側型板、３は可動側型板である。固定側取付板１は、図
示されていない射出成形機の固定側プレートに取付けら
れる。また、可動側型板３には成形機の型締め力が加え
られ、この型締め力により固定側型板２に押し付けられ
ている。４は２本のスペーサブロックで、可動側型板３
の背面側に空間を作るためのものである。５は可動側プ
レート（図示せず）に取付けられ可動側型板３を保持し
ている可動側取付板、６と７は２本のスペーサブロック
４の間の空間で移動するエジェクタプレートである。８
はキャビ、９はコアである。キャビ８とコア９はそれぞ
れ固定側型板２と可動側型板３の凹部内に保持されて対
向し、型締め力で密着し中心部付近に樹脂部の形状を型
取った空隙Ｓが形成されている。１０はプレス加工され
た薄鋼板を多数積層した積層鋼板、１１は射出樹脂が流
入する射出路である。射出路１１は固定側取付板１と固
定側型板２及びキャビ８に形成され、上記空隙Ｓに連通
している。積層鋼板１０は、キャビ８及びコア９の間の
空間に挿入される。１２はエジェクタピンで、コア９の
穴及びエジェクタプレート６，７に保持されている。１
３は押えプレート、１４はスプリングである。押えプレ
ート１３は固定側型板２の凹部内に介装され、スプリン
グ１４の弾性力により常時積層鋼板１０を押圧する。図
２の１５は、射出されて成型された成型樹脂である。1 is a sectional view showing an embodiment of the present invention.
The same parts as those of the conventional device described above are designated by the same reference numerals and the description thereof is partially duplicated, but will be described in a little more detail. 1 and 2, 1 is a fixed side mounting plate, 2 is a fixed side template held by the mounting plate 1, and 3 is a movable side template. The fixed side attachment plate 1 is attached to a fixed side plate of an injection molding machine (not shown). A mold clamping force of a molding machine is applied to the movable side mold plate 3, and the movable side mold plate 3 is pressed against the fixed side mold plate 2 by this mold clamping force. Reference numeral 4 denotes two spacer blocks, which are movable side mold plates 3
It is for making a space on the back side of. Reference numeral 5 is a movable side mounting plate which is mounted on a movable side plate (not shown) and holds the movable side template 3, and 6 and 7 are ejector plates which move in the space between the two spacer blocks 4. 8
Is a cabinet and 9 is a core. The cavity 8 and the core 9 are held in the concave portions of the fixed-side mold plate 2 and the movable-side mold plate 3, respectively, and face each other. Has been done. Reference numeral 10 is a laminated steel sheet obtained by laminating a large number of pressed thin steel sheets, and 11 is an injection path into which injection resin flows. The injection passage 11 is formed in the fixed-side mounting plate 1, the fixed-side template 2 and the cabinet 8 and communicates with the space S. The laminated steel plate 10 is inserted into the space between the cabinet 8 and the core 9. Reference numeral 12 denotes an ejector pin, which is held in the hole of the core 9 and the ejector plates 6 and 7. 1
3 is a holding plate, and 14 is a spring. The pressing plate 13 is interposed in the concave portion of the stationary mold plate 2 and constantly presses the laminated steel plate 10 by the elastic force of the spring 14. Reference numeral 15 in FIG. 2 is a molding resin that is injected and molded.
【０００９】このように構成された本発明の実施例の動
作を、次に説明する。可動側型板３の凹部内に積層鋼板
１０を挿入し、射出成型機の可動側を駆動して型締めを
行う。型締め後、射出成型機から加熱・加圧された樹脂
が射出され、図２の矢印に示すように射出路１１を流れ
て空隙Ｓ内に注入される。空隙Ｓ内に注入された樹脂を
冷却して硬化させた後に、型開きを行う。そして、射出
成形機のエジェクタプレート６，７及びエジェクタピン
１２の動作により、可動側型板３より成形された積層鋼
板１０を取り出す。図２に、成形された積層鋼板１０の
平面図が示されている。四角形の積層鋼板１０が加圧さ
れた状態で、中心部に角筒状の成型樹脂１５が一体に成
型されている。この場合、積層鋼板１０のインサート射
出成形状態においては、固定側型板２に取り付けられた
押えプレート１３がスプリング１４により押圧されてい
る。したがって、積層鋼板１０の厚さが変化しても、ス
プリング１４の弾性力によって押えプレート１３が積層
鋼板１０に密着して隙間をなくして樹脂がモレるのを防
ぐことができる。この結果、従来キャビ８と積層鋼板１
０との間の隙間でできるバリを、一掃することができ
る。The operation of the embodiment of the present invention thus constructed will be described below. The laminated steel plate 10 is inserted into the concave portion of the movable side mold plate 3, and the movable side of the injection molding machine is driven to perform mold clamping. After the mold is clamped, the heated and pressurized resin is injected from the injection molding machine, flows through the injection path 11 as shown by the arrow in FIG. After the resin injected into the space S is cooled and hardened, the mold is opened. Then, by operating the ejector plates 6 and 7 and the ejector pin 12 of the injection molding machine, the laminated steel plate 10 molded from the movable side mold plate 3 is taken out. FIG. 2 shows a plan view of the formed laminated steel plate 10. A rectangular tubular molding resin 15 is integrally molded at the center of the rectangular laminated steel plate 10 under pressure. In this case, when the laminated steel plate 10 is in the insert injection molding state, the pressing plate 13 attached to the fixed-side template 2 is pressed by the spring 14. Therefore, even if the thickness of the laminated steel plate 10 changes, the pressing plate 13 can be closely attached to the laminated steel plate 10 by the elastic force of the spring 14 to eliminate a gap and prevent the resin from leaking. As a result, conventional cabinet 8 and laminated steel plate 1
Burrs created in the gap between 0 can be eliminated.
【００１０】[0010]
【発明の効果】この発明は、互いに対向して接触し樹脂
部形状を型取った空隙を形成して積層鋼板がインサート
されるキャビ及びコア、このキャビ及びコアを支持する
固定側型板と可動側型板とを備え、固定側型板の射出路
から空隙に樹脂を射出成型する積層鋼板のインサート射
出成形における金型構造において、固定側型板にスプリ
ングにより積層鋼板を押圧する押えプレートを設けた積
層鋼板のインサート射出成形における金型構造を構成し
た。この結果、インサートされる積層鋼板の厚さが変化
してもバリの発生しない製品が得られるという効果があ
る。According to the present invention, a cavity and a core into which laminated steel sheets are inserted by forming a void that is in contact with each other and has a shape of a resin portion, and a fixed side template that supports the cavity and the core are movable. In a mold structure in insert injection molding of a laminated steel plate that includes a side template and injection-molds a resin from a fixed-side template injection path into a gap, a press plate that presses the laminated steel sheet with a spring is provided on the fixed-side template. The mold structure in insert injection molding of laminated steel sheets was constructed. As a result, it is possible to obtain a product in which burrs do not occur even if the thickness of the laminated steel plates to be inserted changes.
【図１】この発明の一実施例による積層鋼板のインサー
ト射出成形装置を示す断面図である。FIG. 1 is a sectional view showing an insert injection molding apparatus for laminated steel sheets according to an embodiment of the present invention.
【図２】この発明の一実施例による成型された積層鋼板
の平面図である。FIG. 2 is a plan view of a molded laminated steel sheet according to an embodiment of the present invention.
【図３】この発明の一実施例による積層鋼板のインサー
ト射出成形装置を示す部分拡大図である。FIG. 3 is a partial enlarged view showing an insert injection molding apparatus for laminated steel sheets according to an embodiment of the present invention.
【図４】従来の積層鋼板のインサート成形装置を示す断
面図である。FIG. 4 is a cross-sectional view showing a conventional insert forming apparatus for laminated steel plates.
２ 固定側型板 ３ 可動側型板 ８ キャビ ９ コア １０ 積層鋼板 １１ 射出路 １３ 押えプレート １４ スプリング １５ 樹脂インサート 2 Fixed-side mold plate 3 Movable-side mold plate 8 Cavity 9 Core 10 Laminated steel plate 11 Injection path 13 Holding plate 14 Spring 15 Resin insert
Claims (1)
った空隙を形成して積層鋼板がインサートされるキャビ
及びコア、該キャビ及びコアを支持する固定側型板と可
動側型板とを備え、前記固定側型板の射出路から前記空
隙に樹脂を射出成型する積層鋼板のインサート射出成形
における金型構造において、 前記固定側型板にスプリングにより積層鋼板を押圧する
押えプレートを設けたことを特徴とする積層鋼板のイン
サート射出成形における金型構造。1. A cabinet and a core into which a laminated steel sheet is inserted by forming a void that is in contact with each other and has a shape of a resin portion, and a fixed side template and a movable side template that support the cabinet and the core. In a mold structure in insert injection molding of a laminated steel plate for injection-molding resin into the gap from the injection path of the fixed-side template, a press plate for pressing the laminated steel plate by a spring is provided on the fixed-side template. A mold structure for insert injection molding of laminated steel sheets, which is characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25082691A JPH0584776A (en) | 1991-09-30 | 1991-09-30 | Mold structure in insert injection molding of laminated steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25082691A JPH0584776A (en) | 1991-09-30 | 1991-09-30 | Mold structure in insert injection molding of laminated steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0584776A true JPH0584776A (en) | 1993-04-06 |
Family
ID=17213609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25082691A Pending JPH0584776A (en) | 1991-09-30 | 1991-09-30 | Mold structure in insert injection molding of laminated steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0584776A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0688650A1 (en) * | 1994-01-13 | 1995-12-27 | Citizen Watch Co. Ltd. | Method of resin-sealing semiconductor devices |
| WO2007109329A2 (en) | 2006-03-21 | 2007-09-27 | Delphi Technologies, Inc. | Integrated structural member for a vehicle and method of making |
| JP2019166752A (en) * | 2018-03-26 | 2019-10-03 | 愛知製鋼株式会社 | Injection molding machine |
| CN112277246A (en) * | 2020-12-30 | 2021-01-29 | 常州市瑞泰光电有限公司 | Insert injection mold and injection molding method thereof |
-
1991
- 1991-09-30 JP JP25082691A patent/JPH0584776A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0688650A1 (en) * | 1994-01-13 | 1995-12-27 | Citizen Watch Co. Ltd. | Method of resin-sealing semiconductor devices |
| EP0688650A4 (en) * | 1994-01-13 | 1997-06-11 | Citizen Watch Co Ltd | Method of resin-sealing semiconductor devices |
| US7731261B2 (en) | 2002-12-10 | 2010-06-08 | Inteva Products Llc | Integrated structural member for a vehicle and method of making |
| US8313134B2 (en) | 2002-12-10 | 2012-11-20 | Inteva Products, Llc | Integrated structural member for a vehicle and method of making |
| US9085096B2 (en) | 2002-12-10 | 2015-07-21 | Inteva Products, Llc | Integrated structural member for a vehicle and method of making |
| WO2007109329A2 (en) | 2006-03-21 | 2007-09-27 | Delphi Technologies, Inc. | Integrated structural member for a vehicle and method of making |
| WO2007109329A3 (en) * | 2006-03-21 | 2008-03-13 | Delphi Tech Inc | Integrated structural member for a vehicle and method of making |
| JP2019166752A (en) * | 2018-03-26 | 2019-10-03 | 愛知製鋼株式会社 | Injection molding machine |
| CN112277246A (en) * | 2020-12-30 | 2021-01-29 | 常州市瑞泰光电有限公司 | Insert injection mold and injection molding method thereof |
| CN112277246B (en) * | 2020-12-30 | 2021-03-09 | 常州市瑞泰光电有限公司 | Insert injection mold and injection molding method thereof |
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