JPS6241849B2 - - Google Patents
Info
- Publication number
- JPS6241849B2 JPS6241849B2 JP18334883A JP18334883A JPS6241849B2 JP S6241849 B2 JPS6241849 B2 JP S6241849B2 JP 18334883 A JP18334883 A JP 18334883A JP 18334883 A JP18334883 A JP 18334883A JP S6241849 B2 JPS6241849 B2 JP S6241849B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- hole
- vacuum
- substrate
- sheet metal
- 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
- 239000000758 substrate Substances 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 15
- 238000001746 injection moulding Methods 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000005856 abnormality Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009291 secondary effect Effects 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
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
- B29C33/14—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall
- B29C33/18—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall using vacuum
-
- 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
- B29C45/84—Safety devices
- B29C45/842—Detection of insert defects, e.g. inaccurate position, breakage
-
- 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
- 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)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (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】
産業上の利用分野
本発明は、板金基板を金型内に挿入して板金基
板の必要部分に合成樹脂部品を一体成形するアウ
トサート成形型における射出成形機の金型保護装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a mold for an injection molding machine in an outsert mold that inserts a sheet metal substrate into the mold and integrally molds synthetic resin parts on necessary parts of the sheet metal substrate. It relates to protective devices.
従来例の構成とその問題点
近年、アウトサート成形は板金基板に個々の部
品を取付けていく組立方式を廃止して１シヨツト
の成形で部品組立が可能となる組立工法の合理化
を実現ならしめたものであるが、金型に板金基板
を挿入するとき、基板にバリや反りがあつたり、
ゴミ等の異物付着及び基板のプレス抜き孔忘れ等
で金型に正しく板金基板が挿入しないままに型閉
めをして金型を破損するトラブルがあつた。また
板金基板の挿入忘れのまま型閉めを完了して成形
すると金型の破損は無いが、不必要部分まで合成
樹脂が流れ出てくるトラブルも発生していた。Conventional structure and its problems In recent years, outsert molding has abolished the assembly method of attaching individual parts to a sheet metal substrate, and has realized a streamlined assembly method that allows parts to be assembled in one shot molding. However, when inserting a sheet metal board into a mold, there may be burrs or warpage on the board.
There have been problems such as adhesion of foreign matter such as dust and forgetting press punch holes in the board, resulting in damage to the mold due to the mold being closed without correctly inserting the sheet metal board into the mold. Furthermore, if the mold is closed and molded without forgetting to insert the sheet metal substrate, the mold will not be damaged, but synthetic resin will flow out to unnecessary parts.
発明の目的
本発明は、上記従来の問題点を一挙に解決せん
とするもので、板金基板が正しく金型に挿入完了
したことを確認すると共に、基板の反り、変形・
バリ・ゴミ付着等の異常及びプレス抜き孔忘れ等
の基板異常を検出して、金型の保護を完壁なもの
にすることができる射出成形機の金型保護装置を
提供することを目的とする。Purpose of the Invention The present invention aims to solve the above-mentioned conventional problems all at once, and it is possible to confirm that the sheet metal substrate has been correctly inserted into the mold, and to prevent warpage, deformation, and
The purpose of the present invention is to provide a mold protection device for an injection molding machine that can completely protect the mold by detecting abnormalities such as burrs and dust adhesion and substrate abnormalities such as forgetting press punch holes. do.
発明の構成
本発明は板金基板が挿入される金型の挿入面か
ら型開閉面以外の表面に至るまでの空気通過の貫
通孔と前記貫通孔内部を真空にする真空発生器
と、該金型の型開閉面以外の表面孔から前記真空
発生器に接続する配管と、該金型の貫通孔内部の
真空度を検出する真空検出器とを有し、該真空検
出器の出力信号により型閉め動作を行なう射出成
形機の金型保護装置であり、板金基板挿入時の金
型内の真空度を検出して正しく基板が挿入された
ときのみ型閉めをスタートさせることにより、金
型破損のトラブルを防止することができるもので
ある。Structure of the Invention The present invention provides a through hole for air passage from the insertion surface of a mold into which a sheet metal substrate is inserted to a surface other than the mold opening/closing surface, a vacuum generator for evacuating the inside of the through hole, and the mold. It has piping that connects to the vacuum generator from a surface hole other than the mold opening/closing surface, and a vacuum detector that detects the degree of vacuum inside the through hole of the mold, and the mold is closed by the output signal of the vacuum detector. This is a mold protection device for injection molding machines that operate, and detects the degree of vacuum inside the mold when a sheet metal board is inserted, and starts closing the mold only when the board is inserted correctly, thereby preventing mold damage. This is something that can be prevented.
実施例の説明
第１図は本発明の実施例における射出成形機の
金型保護装置の全体を示すものである。第１図に
おいて、１は射出成形機の固定盤、２は射出成形
機の可動盤、３は射出成形機の型開閉シリンダ、
４は固定型、５は可動型、６は固定型４に取付け
てある板金基板挿入用のガイドピン、７は板金基
板、８は貫通孔、９は貫通孔の入口、１０は配
管、１１はフイルタ、１２は真空発生器、１３は
真空検出器、１４は真空検出器１３の出力信号に
よつて型閉め指令を与える信号線、１５は型開閉
シリンダ１３の油圧配管、１６は型開閉動作の切
換を行なう油圧電磁弁、１７は固定型の基板挿入
表面である。DESCRIPTION OF EMBODIMENTS FIG. 1 shows the entire mold protection device for an injection molding machine in an embodiment of the present invention. In Fig. 1, 1 is a fixed plate of the injection molding machine, 2 is a movable plate of the injection molding machine, 3 is a mold opening/closing cylinder of the injection molding machine,
4 is a fixed type, 5 is a movable type, 6 is a guide pin attached to the fixed type 4 for inserting a sheet metal board, 7 is a sheet metal board, 8 is a through hole, 9 is an entrance of the through hole, 10 is a pipe, 11 is a 12 is a vacuum generator, 13 is a vacuum detector, 14 is a signal line that gives a mold closing command based on the output signal of the vacuum detector 13, 15 is a hydraulic pipe for the mold opening/closing cylinder 13, and 16 is a mold opening/closing operation. A hydraulic electromagnetic valve for switching, 17 is a fixed board insertion surface.
今、基板７を、固定型４にガイドピン６の案内
規制をうけて挿入するとき、予め真空発生器１２
で固定型４内の貫通孔８にも空気通過させると、
その入口９及び貫通孔８には矢印Ｂ方向の空気が
流入している。基板７を固定型の表面１７に密着
させると、真空発生器１２による真空吸引力とも
相まつて基板７は固定型表面１７に吸い着いた状
態となり、このとき貫通孔８内部の真空度が上昇
し、所定の真空度に達した後真空検出器１３にて
検出しこの信号１４により油圧電磁弁１６を切換
えて矢印Ａ方向の型閉め動作を行なうことにな
る。 Now, when inserting the board 7 into the fixed mold 4 under the guidance of the guide pins 6, the vacuum generator 12
When air is also passed through the through hole 8 in the fixed mold 4,
Air flows in the direction of arrow B into the inlet 9 and through hole 8 . When the substrate 7 is brought into close contact with the surface 17 of the fixed mold, the substrate 7 becomes stuck to the surface 17 of the fixed mold together with the vacuum suction force by the vacuum generator 12, and at this time, the degree of vacuum inside the through hole 8 increases. After reaching a predetermined degree of vacuum, it is detected by the vacuum detector 13, and in response to this signal 14, the hydraulic solenoid valve 16 is switched to perform the mold closing operation in the direction of arrow A.
この基板７が固定型表面１７に吸い着く状態
は、例えば基板７の反りやバリや変形が最低0.2
mmであれば真空検出器１３による出力信号が出る
ことなく決して型閉めはしない結果を得た。この
ことは基板７と固定型表面１７との間に0.2mmの
厚みのものをはさみこんでも同様の結果であり、
わずかな反りやバリ、異物付着、変形のある基板
であれば型閉めは全く開始せずに金型の破損も皆
無となつたのである。 The state in which the substrate 7 sticks to the fixed mold surface 17 means that the substrate 7 is warped, burred, or deformed by at least 0.2
mm, no output signal was output from the vacuum detector 13 and the mold was never closed. This result is the same even if a 0.2 mm thick object is inserted between the substrate 7 and the fixed mold surface 17.
If the substrate had slight warpage, burrs, foreign matter adhesion, or deformation, the mold would not close at all, and there would be no damage to the mold.
さらにまた、ガイドピン６から外れて基板７を
挿入したり、基板７ナシであれば、固定型表面１
７と基板７は密着することもなく貫通孔８内部の
真空度も何ら上昇することがないため、このとき
も型閉めはしないのであつた。 Furthermore, if the board 7 is inserted after coming off the guide pin 6, or if the board 7 is not present, the fixed surface 1
7 and the substrate 7 did not come into close contact with each other, and the degree of vacuum inside the through hole 8 did not increase at all, so the mold was not closed at this time as well.
次に、本発明の実施例における真空発生器１２
及び真空検出器１３の具体構造を第２図ａ，ｂに
基づいて説明する。第２図において、２０は空気
エジエクター構造の真空発生器本体、２１は本体
ノド部、２２はシリンダー室、２３はフロート、
２４はレバー、２５はリミツトスイツチ、２６は
出力線、２７は導電性のボール、２８は電気ター
ミナル、２９は出力線である。なお、第２図ｂに
おいて２０から２２までの第２図ａと同一番号の
ものは第２図ａと同一物品でできている。 Next, the vacuum generator 12 in the embodiment of the present invention
The specific structure of the vacuum detector 13 will be explained based on FIGS. 2a and 2b. In FIG. 2, 20 is a vacuum generator main body having an air ejector structure, 21 is a throat portion of the main body, 22 is a cylinder chamber, 23 is a float,
24 is a lever, 25 is a limit switch, 26 is an output line, 27 is a conductive ball, 28 is an electric terminal, and 29 is an output line. In addition, in FIG. 2b, parts 20 to 22 having the same numbers as in FIG. 2a are made of the same articles as in FIG. 2a.
上記構成において、第２図ａの真空発生器で
は、圧縮空気を矢印Ｃ方向から本体２０に導く
と、ノド部２１にはそのエジエクト効果で真空が
発生するため、このノド部２１に連通しているシ
リンダー室２２及び配管１０は真空になり、真空
度が上昇すると第２図ａではフロート２３はノド
部２１に近ずいてそのレバー２４でリミツトスイ
ツチ２５を動作させることになり、また第２図ｂ
の真空検出器１３では、ボール２７がノド部２１
に近ずいて１対の電気ターミナル２８に接触し、
出力２９が得られるのである。 In the above configuration, in the vacuum generator shown in FIG. 2a, when compressed air is introduced into the main body 20 from the direction of arrow C, a vacuum is generated in the throat section 21 due to its ejecting effect. The cylinder chamber 22 and the piping 10 in which it is located become vacuum, and as the degree of vacuum increases, the float 23 approaches the throat part 21 in FIG. 2a and operates the limit switch 25 with its lever 24, and in FIG.
In the vacuum detector 13 shown in FIG.
and comes into contact with a pair of electrical terminals 28,
An output 29 is obtained.
また、固定型表面１７に近い貫通孔８の入口９
の形状を第３図に基づいて説明する。入口９の形
状は、孔の入口９，１８が内部よりも広い第３図
ｂ，ｃに示すものが第３図ａに示すものよりも基
板の吸い着きの安定性と真空検出器１３の動作も
より鋭敏な結果が得られた。 Also, the entrance 9 of the through hole 8 close to the fixed mold surface 17
The shape will be explained based on FIG. The shape of the inlet 9 shown in FIGS. 3b and 3c, in which the inlets 9 and 18 of the hole are wider than the inside, is better than that shown in FIG. Even more sensitive results were obtained.
なお、貫通孔８の金型挿入表面１７における位
置は、基板の挿入方向である挿入面の基板投影面
積内でなければならないことは言うまでもない。 It goes without saying that the position of the through hole 8 on the mold insertion surface 17 must be within the substrate projected area of the insertion surface, which is the insertion direction of the substrate.
発明の効果
以上詳述したように本発明は、板金基板が挿入
される金型の挿入面から金型の型開閉面以外の表
面に至るまでの空気通過の貫通孔と、この貫通孔
内部を真空にする真空発生器と該金型の型開閉面
以外の表面孔から該真空発生器に接続する配管
と、該金型の貫通孔内部の真空度を検出する真空
検出器と該真空検出器の出力信号により型閉め動
作を行なう手段とを設けたものであるから、板金
基板挿入時の金型内の真空度を検出して正しく基
板が挿入されたときのみ、型閉めをスタートする
ことができた、さらに基板に反り・変形・バリ・
ゴミ付着等の異常があつたときは型閉めがスター
トしないと言つた完璧に金型の破損を保護すると
いう効果が得られるのである。Effects of the Invention As detailed above, the present invention provides a through hole for air passage from the insertion surface of the mold into which a sheet metal substrate is inserted to a surface other than the mold opening/closing surface of the mold, and the inside of this through hole. A vacuum generator that creates a vacuum, piping that connects to the vacuum generator from a surface hole other than the mold opening/closing surface of the mold, a vacuum detector that detects the degree of vacuum inside the through hole of the mold, and the vacuum detector. Since the device is equipped with a means for performing mold closing operation based on the output signal of In addition, the board may be warped, deformed, burred, or
This has the effect of completely protecting the mold from damage by preventing mold closing from starting if there is an abnormality such as adhesion of dust.
さらに、金型保護だけでなく、板金基板のわず
かな反りやバリのある状態でも検出してしまうた
め、基板不良の検出も完璧なものにすることがで
きるという二次的効果も得られる。 Furthermore, since it not only protects the mold, but also detects slight warpage or burrs on the sheet metal substrate, it has the secondary effect of perfecting the detection of substrate defects.
第１図は本発明の一実施例における射出成形機
の金型保護装置の全体図、第２図は本発明の一実
施例の真空発生器及び真空検出器の構造図、第３
図は本発明の一実施例の固定型内部の貫通孔の基
板挿入面における入口部の説明図である。
７……板金基板、８……貫通孔、１０……配
管、１２……真空発生器、１３……真空検出器、
１４……出力信号、１６……型開閉油圧電磁弁。
FIG. 1 is an overall view of a mold protection device for an injection molding machine according to an embodiment of the present invention, FIG. 2 is a structural diagram of a vacuum generator and a vacuum detector according to an embodiment of the present invention, and FIG.
The figure is an explanatory diagram of an entrance portion on a board insertion surface of a through hole inside a fixed mold according to an embodiment of the present invention. 7...Sheet metal substrate, 8...Through hole, 10...Piping, 12...Vacuum generator, 13...Vacuum detector,
14... Output signal, 16... Mold opening/closing hydraulic solenoid valve.
Claims (1)
入面であつて基板の投影面積内に設け、他方の開
口を金型の型開閉面以外の表面に設けた空気通過
の貫通孔を有し、前記貫通孔内部を真空にする真
空発生器と、前記金型の型開閉面以外の表面にあ
る前記貫通孔を前記真空発生器に接続する配管
と、前記金型の貫通孔内部の真空度を検出する真
空検出器とを有し、前記真空検出器の出力信号に
より前記金型の型閉め動作を行なうことを特徴と
する射出成形機の金型保護装置。 ２ 金型挿入面の貫通孔は、その形状が孔の入口
が内部よりも広い形状であることを特徴とする特
許請求の範囲第１項記載の射出成形機の金型保護
装置。[Claims] 1. One opening is provided on the insertion surface of the mold into which the sheet metal substrate is inserted and is within the projected area of the substrate, and the other opening is provided on the surface of the mold other than the mold opening/closing surface. a vacuum generator having a through-hole for passage and evacuating the inside of the through-hole; piping connecting the through-hole on a surface other than the mold opening/closing surface of the mold to the vacuum generator; and the mold. A mold protection device for an injection molding machine, comprising: a vacuum detector for detecting the degree of vacuum inside a through hole; and a mold closing operation of the mold is performed based on an output signal of the vacuum detector. 2. The mold protection device for an injection molding machine according to claim 1, wherein the through hole in the mold insertion surface has a shape such that the entrance of the hole is wider than the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18334883A JPS6073823A (en) | 1983-09-30 | 1983-09-30 | Mold protecting apparatus of injection molder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18334883A JPS6073823A (en) | 1983-09-30 | 1983-09-30 | Mold protecting apparatus of injection molder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6073823A JPS6073823A (en) | 1985-04-26 |
| JPS6241849B2 true JPS6241849B2 (en) | 1987-09-04 |
Family
ID=16134157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18334883A Granted JPS6073823A (en) | 1983-09-30 | 1983-09-30 | Mold protecting apparatus of injection molder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6073823A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2578935Y2 (en) * | 1991-01-24 | 1998-08-20 | 株式会社東芝 | Resin molding equipment |
| JP5908322B2 (en) * | 2012-03-30 | 2016-04-26 | 株式会社三井ハイテック | Manufacturing method of rotor laminated core |
| CN116277726A (en) * | 2023-03-31 | 2023-06-23 | 欧唐科技（深圳）有限公司 | Die structure of die is prevented to cover beer hardware inserts |
-
1983
- 1983-09-30 JP JP18334883A patent/JPS6073823A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6073823A (en) | 1985-04-26 |
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