JPH0412816A - Molding process and its device - Google Patents
Molding process and its deviceInfo
- Publication number
- JPH0412816A JPH0412816A JP11445590A JP11445590A JPH0412816A JP H0412816 A JPH0412816 A JP H0412816A JP 11445590 A JP11445590 A JP 11445590A JP 11445590 A JP11445590 A JP 11445590A JP H0412816 A JPH0412816 A JP H0412816A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- mold
- molded
- piece
- plates
- 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.)
- Granted
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 230000013011 mating Effects 0.000 claims description 18
- 238000009415 formwork Methods 0.000 claims description 7
- 238000013459 approach Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 13
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
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
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、薄い板状の成形物を多数同時に成形する場合
や、溶融状態の樹脂が固化する際に収縮が余りない樹脂
を成形する場合、あるいは抜き勾配を付けることができ
ないような薄板状の成形物を成形する方法と、これに使
用する装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is useful when molding a large number of thin plate-shaped products at the same time, or when molding a resin that does not shrink much when the molten resin solidifies. The present invention also relates to a method for molding a thin plate-like molded product that cannot have a draft angle, and an apparatus used therefor.
例えば、カラーブラウン管の色純度を向上させ、ブラウ
ン管面の色むらをなくし、−様な色を再現することが必
要である。この色純度の調整が不完全な場合には、画面
全体が一様に白くならずに部分的に色がつき、完全な色
彩を有する画像を再現することができなくなる。そこで
カラーブラウン管における色むらの欠点を防止するため
に、ブラウン管のネック部に複数枚のピユリティマグネ
ットを偏向ヨークの後方に設けて、この偏向ヨークとピ
ユリティマグネットとの円周方向の位置を変えることに
よって色むらをなくすように調整している。For example, it is necessary to improve the color purity of color cathode ray tubes, eliminate color unevenness on the surface of the cathode ray tube, and reproduce negative colors. If this color purity adjustment is incomplete, the entire screen will not be uniformly white but will be partially colored, making it impossible to reproduce an image with perfect colors. Therefore, in order to prevent the defect of color unevenness in color cathode ray tubes, a plurality of purity magnets are installed behind the deflection yoke in the neck of the cathode ray tube. Adjustments are made to eliminate color unevenness by changing the .
このピユリティマグネットＭは、一種の合成樹脂製の磁
気リングであって、第８図（Ａ） 、 （Ｂ）に示すよ
うにリング部ａと、このリング部ａより外方に突出した
操作部ｂ（腕部）より構成され、磁性体を混入した合成
樹脂を使用して薄板状に射出成形されている。This purity magnet M is a kind of magnetic ring made of synthetic resin, and as shown in FIGS. It consists of part b (arm part) and is injection molded into a thin plate using synthetic resin mixed with a magnetic material.
このような形状のビュリティマグネッ）Ｍは金型（型枠
）の合い面に設けたランナ一部の両側にキャビティを平
面的に配列し、これに溶融樹脂を注入する方法を採用す
る方法が一般的である。このキャビティの配列であると
上型（−方の金型）を下型（他方の金型）より離反させ
れば下型の表面が開放状態となるので、成形品を簡単に
取出すことが可能である反面、広い面積の大型の金型を
必要とする。その結果、金型の製造コストが上昇し、金
型の温度制御が困難となり、更に歪みが少なく、寸法精
度に優れた成形物を成形することが困難である。Beauty magnet) M with this shape is produced by arranging cavities in a plane on both sides of a part of the runner provided on the mating surface of the mold (mold), and injecting molten resin into these cavities. Common. With this cavity arrangement, when the upper mold (- side mold) is separated from the lower mold (other mold), the surface of the lower mold becomes open, making it possible to easily take out the molded product. On the other hand, it requires a large mold with a wide area. As a result, the manufacturing cost of the mold increases, it becomes difficult to control the temperature of the mold, and it is also difficult to mold a molded product with less distortion and excellent dimensional accuracy.
前記成形工程上の問題を解消するために、第９図及び第
１０図のように、ピユリティマグネットＭを連結部Ｃを
介して連結棒ｄ上に植立して全体を櫛状の集合体に成形
し、この集合体を磁化工程を経て所定の磁化を行なわせ
た後、前記連結部Ｃより個々のピユリティマグネットＭ
に分離して完成する方法を本発明者が開発した。In order to solve the problem in the forming process, as shown in FIGS. 9 and 10, the purity magnets M are planted on the connecting rod d via the connecting part C, and the whole is assembled into a comb-shaped assembly. After forming the assembly into a body and subjecting the assembly to a predetermined magnetization through a magnetization process, individual purity magnets M are connected through the connecting portion C.
The present inventor has developed a method to separate and complete the two.
この新方式のピユリティマグネットＭの集合体を成形す
る方法は、金型の合い面に平面的にキャビティを形成し
た従来の成形方法に比較して著しく密集状態で成形する
ことができるため、金型が小型化されるので温かに効率
的な方法であるが、次の如き問題が発生した。This new method of molding an aggregate of purity magnets M allows for molding in a much denser state compared to the conventional molding method in which cavities are formed flat on the mating surface of the mold. Although this is a warm and efficient method because the mold is miniaturized, the following problems arose.
即ち、このピユリティマグネットに使用される樹脂は、
耐熱性のものであり、溶融温度と射出する圧力が通常の
成形品の成形に使用される樹脂に比較して著しく高い。In other words, the resin used in this purity magnet is
It is heat resistant, and its melting temperature and injection pressure are significantly higher than those of resins used to mold ordinary molded products.
更に、この耐熱性樹脂は、固化と共にその体積が膨張す
るか、あるいは余り収縮しないと言う特性を有している
。Furthermore, this heat-resistant resin has the characteristic that its volume expands upon solidification, or that it does not shrink much.
その樹脂の一例を示せば、成形体を形成する要素として
、６−ナイロンを体積で１２〜２５％、好ましくは１５
％に磁性体粉を同様に体積で８８〜７５％、好ましくは
８５％を混合して射出成形機を使用して成形する。To give an example of the resin, 6-nylon is used in an amount of 12 to 25% by volume, preferably 15
% and magnetic powder in a volume of 88 to 75%, preferably 85%, and molded using an injection molding machine.
従って、この偏平な成形品は金型に掘られたキャビティ
内に強く付着しており、この成形品の厚さ方向より突き
出しビンによって押して金型より抜き出すことは、実質
的に困難である。Therefore, this flat molded product strongly adheres to the inside of the cavity cut in the mold, and it is substantially difficult to push the molded product in the thickness direction with an ejector to pull it out of the mold.
一般の成形方法においては、成形品を抜き易くするため
に、その成形品を抜く方向に「抜き勾配」を設けている
が、前記ピユリティマグネットＭのように板厚が薄く、
この板厚に比較して直径の大きな、広幅で全体的に偏平
な表面積の大きな成形物においては、実質的に抜き勾配
を設けることが困難であり、また、設けるにしても、面
積が大きい関係でかなり大きなものとなる。In general molding methods, a "draft angle" is provided in the direction in which the molded product is pulled out in order to make it easier to pull out the molded product.
In molded products with a large diameter, wide, generally flat surface area compared to the plate thickness, it is virtually difficult to provide a draft angle, and even if one is provided, the area is large. It becomes quite large.
しかし、ピユリティマグネットＭは板厚が薄く、しかも
その板厚が均一であることが要求されているので、この
ように板厚を、抜き勾配となる傾斜面とすることは困難
である。However, since the purity magnet M is required to have a thin plate thickness and a uniform plate thickness, it is difficult to form the plate thickness into an inclined surface that is a draft angle.
更に別の問題として、成形の効率を向上させるため↓こ
は、連結棒４上に植立されるピユリティマグネットＭの
間隔（ピッチ）を縮小することである。Another problem is to reduce the interval (pitch) between the purity magnets M placed on the connecting rod 4 in order to improve the efficiency of molding.
このピッチが縮小されると、前記のように只でさえ抜き
難い成形品の金型よりの抜けが極めて困難となるので、
通常の場合は前記欠点を避けるために、この間隔を余り
小さくすることが実質的に困難であり、生産性はある範
囲から向上させることができなか−っだ。If this pitch is reduced, it will become extremely difficult to remove molded products that are difficult to remove from the mold as described above.
Normally, in order to avoid the above-mentioned drawbacks, it is practically difficult to make this distance too small, and productivity cannot be improved beyond a certain range.
更に、厚さに比較して面積が大きな板状の成形品は、成
形時に金型のキャビティに付着し易く、従って、面積の
大きな方より剥ぎ取るように取り出すことは容易でも、
厚さ方向に突き出しピンで抜き出すことは困難であり、
成形品を損傷してしまう。このような場合には成形効率
よりも、成形品の取り出しを考慮して金型を設計する関
係で、キャビティを平面的に配置した大型の金型とせざ
るを得なかったのである。Furthermore, a plate-shaped molded product with a large area compared to its thickness tends to adhere to the mold cavity during molding, and therefore it is easier to remove it by peeling it off than one with a larger area.
It is difficult to pull out with an ejector pin in the thickness direction,
This will damage the molded product. In such cases, the mold has to be designed with consideration to ejection of the molded product rather than molding efficiency, so a large mold with a planar cavity arrangement must be used.
本発明は、前記従来の金型より抜は難い成形品、特に板
状の成形品を密集化した状態でも簡単に抜き出すことが
できる成形方法及びその方法を実施する装置を提供する
ものである。The present invention provides a molding method that can easily extract molded products that are difficult to remove from the conventional molds, especially plate-shaped molded products even in a densely packed state, and an apparatus for implementing the method.
前記目的を達成するための本発明は、（１）多数の成形
品を積層状態で同時に成形する方法において、キャビテ
ィを合面に形成した複数枚の駒板を積層し、駒板の積層
体を締め付けた状態において溶融樹脂を注入して成形し
た後、前記駒板間の締め付け圧力を解除して駒板の間を
緩めた後、この成形品を取り出すようにした成形方法で
ある。To achieve the above object, the present invention provides (1) a method for simultaneously molding a large number of molded products in a laminated state, in which a plurality of piece plates each having a cavity formed on their mating surfaces are laminated, and the stacked body of piece plates is tightened; In this molding method, after injecting molten resin and molding, the clamping pressure between the piece plates is released to loosen the space between the pieces, and then the molded product is taken out.
更に、（２）、２枚の型枠板と、該型枠板の合面の一方
、あるいは双方に形成された凹溝と、該凹溝内に積層状
態で収容され、その合面にキャビティが形成された複数
枚の駒板と、該駒板の端部あるいは駒板の間に前進・後
退して前記駒板を加圧・除圧するロックブロックとから
なる成形装置である。Furthermore, (2) two formwork plates, a groove formed in one or both of the mating surfaces of the formwork plates, and a cavity accommodated in the groove in a stacked state on the mating surface. This molding device is made up of a plurality of piece plates on which are formed, and a lock block that moves forward and backward at the end of the piece plates or between the piece plates to pressurize and release pressure from the piece plates.
なお、通常の金型の場合にはキャビティは固定された穴
ないしは凹部であり、この側壁の一部が移動するように
構成されており、成形品はこの穴ないしは凹部より抜き
出している。一方、本発明においては、このキャビティ
を形成する側壁を、成形品の抜く出し方向とは異なる方
向に積極的に移動させて、この成形品を金型より剥ぎ取
るようにした点に特徴がある。Note that in the case of a normal mold, the cavity is a fixed hole or recess, and a part of this side wall is movable, and the molded product is extracted from this hole or recess. On the other hand, the present invention is characterized in that the side wall forming this cavity is actively moved in a direction different from the direction in which the molded product is pulled out, so that the molded product is peeled off from the mold. .
多数の成形物を積層状態で成形する方法において、複数
の駒板の合い面にキャビティを形成しておき、この駒板
を集合させた状態で所定のキャビティを形成し、その中
に樹脂を注入した後に、駒板間の押圧力を緩めて成形物
をキャビティより剥離し易くしたので、薄板状の成形物
や収縮が余りない樹脂を使用した成形物を効率的に生産
することが可能である。In the method of molding a large number of molded products in a stacked state, cavities are formed on the mating surfaces of multiple piece plates, a predetermined cavity is formed with these piece plates gathered together, and after resin is injected into the cavity. Since the pressing force between the piece plates is relaxed to make it easier to separate the molded product from the cavity, it is possible to efficiently produce thin plate-like molded products or molded products using resin that does not shrink much.
次に、図面を参照して本発明の詳細な説明する。 Next, the present invention will be described in detail with reference to the drawings.
第１図は成形装置の概念図であって、成形装置は固定型
部１と可動型部２より構成されている。FIG. 1 is a conceptual diagram of a molding apparatus, which is composed of a fixed mold part 1 and a movable mold part 2.
固定型部１は、ベース３．突出ビンを成形品の数に合わ
せて突設した突出板４．該突出板４の運動範囲を確保す
るスペーサ４ａ＋ 可動型板５（型枠）、前記可動型板
５の表面に沿って移動するスライドコア６等から構成さ
れている。The fixed mold part 1 has a base 3. 4. A protruding plate with protruding bottles protruding according to the number of molded products. It is composed of a spacer 4a+ for ensuring the range of motion of the protruding plate 4, a movable mold plate 5 (form), a slide core 6 that moves along the surface of the movable mold plate 5, and the like.
可動型部２は、固定型板７（型枠）とこの固定型板７に
対して接近・離反する取付板８より構成されている。そ
してこの取付板８にはガイド棒１３とロックブロック１
４が固定型部１側の可動型板５に向けて突設されている
。The movable mold section 2 is composed of a fixed mold plate 7 (mold) and a mounting plate 8 that approaches and moves away from the fixed mold plate 7. And this mounting plate 8 has a guide rod 13 and a lock block 1.
4 protrudes toward the movable mold plate 5 on the fixed mold part 1 side.
前記スライドコア６には複数本のコア部材９（リング部
ａの孔を形成する部材）が可動型板５の表面方向に突設
され、更にこの可動型板５の中央部分の凹溝１０内に、
合い面にキャビティをそれぞれ設けた駒板１１（キャビ
ティコア）が多数枚揃えて積層された状態で嵌入され、
更にこの駒板１１の端部に押圧Ｖｉ１２，１２ａが嵌入
されている。The slide core 6 has a plurality of core members 9 (members that form the holes of the ring part a) protruding toward the surface of the movable mold plate 5, and is further provided in a groove 10 in the center of the movable mold plate 5. To,
A large number of piece plates 11 (cavity cores) each having a cavity on their mating surfaces are inserted in a stacked state,
Furthermore, presses Vi12, 12a are fitted into the ends of this piece plate 11.
そして前記押圧板１２．１２ａの合い面に設けた溝部１
６に可動型部２側に設けたロックブロック１４を嵌入さ
せて押圧板１２を介して駒板１１の端部のものの背後を
押圧して、駒板１１を１個のブロック状に締め上げるよ
うに構成されている。and a groove 1 provided on the mating surface of the pressing plate 12.12a.
A lock block 14 provided on the side of the movable mold part 2 is inserted into 6, and the back of the end of the piece plate 11 is pressed through the pressing plate 12, thereby tightening the piece plate 11 into one block shape. has been done.
第２図は、固定型部２を構成している可動型＋５．５の
平面図であって、可動型板５の中央部には凹溝１０か形
成され、これの中に多数の駒板１１、即ち「キャビティ
コア」が配列され、この駒板１１の合い面にキャビティ
１８が設けられている。FIG. 2 is a plan view of the movable mold +5.5 constituting the fixed mold part 2, in which a concave groove 10 is formed in the center of the movable mold plate 5, and a large number of piece plates 11 are formed in the central part of the movable mold plate 5. That is, "cavity cores" are arranged, and a cavity 18 is provided on the mating surface of this piece plate 11.
この駒板１１の最端部に押圧板１１ａと押圧板１２，１
２ａが設けられ、この押圧板１２，１２ａの合い面に溝
部１６が開口されている。A pressure plate 11a and a pressure plate 12,1 are provided at the end of this piece plate 11.
2a, and a groove 16 is opened in the mating surfaces of the pressing plates 12, 12a.
第３図は固定型部２と可動型部ｌとが接合された状態の
断面を示しており、固定型部２に収容した駒板１１と、
可動型部１に収容した駒板１１ｂで一対の金型を形成し
、これの合い面にキャビティ１８が形成されている。ま
た、可動型板５に沿って突出板４が設けられ、これによ
って突出ピン２０を作動させて成形物を取り出すように
なっている。なお、ａ″はリング部ａの、ｂ゛は操件部
すの、Ｃ゛は連結部Ｃの、更にｄ”は連結棒ｄのキャビ
ティをそれぞれ示している。FIG. 3 shows a cross section of a state in which the fixed mold part 2 and the movable mold part l are joined, and the piece plate 11 accommodated in the fixed mold part 2,
A pair of molds is formed by the piece plates 11b housed in the movable mold part 1, and a cavity 18 is formed on the mating surfaces of the molds. Further, a protrusion plate 4 is provided along the movable mold plate 5, by which a protrusion pin 20 is actuated to take out the molded product. Note that a'' represents the cavity of the ring portion a, b'' the operating portion, C'' the connecting portion C, and further d'' the cavity of the connecting rod d.
第４図は、駒板１１の端部に押圧板１２．１２ａを配置
し、この押圧板１２と１２ａとの間に形成された溝部１
６内にロックブロック１４を矢印Ａ方向に移動させて押
圧板１２を介して駒板１１を矢印Ｂ方向に押圧して駒板
１１を１個のブロック状に一体化して所定のキャビティ
１８を形成する際の状態を示すものである。FIG. 4 shows a pressing plate 12.12a arranged at the end of the piece plate 11, and a groove 1 formed between the pressing plates 12 and 12a.
6, the lock block 14 is moved in the direction of arrow A, and the piece plate 11 is pressed in the direction of arrow B through the pressing plate 12 to integrate the piece plate 11 into one block shape to form a predetermined cavity 18. This indicates the state of
次に本発明に係る成形装置の開口動作について説明する
。Next, the opening operation of the molding apparatus according to the present invention will be explained.
第１図において、固定型部１に対して可動型部２が図示
しないシリンダ装置によって押圧されて両型部１． ２
の合い面が閉止された状態で所定のキャビティ１８が第
３図の如く形成される。In FIG. 1, a movable mold part 2 is pressed against a fixed mold part 1 by a cylinder device (not shown), and both mold parts 1. 2
With the mating surfaces thereof closed, a predetermined cavity 18 is formed as shown in FIG.
この状態が第５図に示す状態で、この状態において溶融
樹脂が金型（駒板１１のキャビティ１８）内に注入され
る。This state is shown in FIG. 5, and in this state the molten resin is injected into the mold (cavity 18 of the piece plate 11).
このようにして目的とする成形物の成形が完了すると、
第６図のように取付板８を矢印Ｃの方向に少し移動させ
て、ロンクツロック１４を押圧板１２．１２ａの間の溝
部１６より抜き出す。このようにしてロックブロック１
４を抜くことによって多数の駒板１１を一方向に押圧し
ていた押圧力は解除される。Once the desired molding is completed in this way,
As shown in FIG. 6, move the mounting plate 8 a little in the direction of arrow C and pull out the long lock 14 from the groove 16 between the pressing plates 12 and 12a. In this way, lock block 1
4, the pressing force that was pressing the many piece plates 11 in one direction is released.
次に、第７図のように取付板８と共に固定型板７（型枠
）を矢印Ｃの方向に移動させて固定型板７と可動型板５
との間に間隙りを形成する。Next, as shown in FIG. 7, the fixed mold plate 7 (formwork) is moved together with the mounting plate 8 in the direction of arrow C, and the fixed mold plate 7 and the movable mold plate 5
A gap is formed between the two.
前記第６図に示した工程において、駒板１１の間の押圧
力はロックブロック１４の後退と共に解除されているの
で、成形物を挟んでいた駒板１１の挟持力が解除され、
キャビティ１８より成形物が簡単に剥離できる状態とな
る。In the process shown in FIG. 6, the pressing force between the piece plates 11 is released as the lock block 14 retreats, so the clamping force of the piece plates 11 that was sandwiching the molded product is released.
The molded product is now in a state where it can be easily peeled off from the cavity 18.
次に、第１図及び第３図に示す突出板４を操作してこの
突出板４に設けられている突出ピン１９をキャビティ１
８内に突出すことによって成形物を前記間隙りより抜き
出すことができる。Next, by operating the protrusion plate 4 shown in FIGS. 1 and 3, the protrusion pin 19 provided on the protrusion plate 4 is inserted into the cavity 1.
By protruding into the space 8, the molded product can be extracted from the gap.
多数の駒板１１を押圧してブロック状に一体化するため
の手段としてロックブロック１４を使用しているが、要
は、駒板１１を一体的に押圧する力を発生させる手段で
あれば、他の手段でも良く、また、この手段は駒板１１
の端部のみならず中央の位置において、また、１ケ所の
みでなく複数ケ所において作用させることも可能である
。Although the lock block 14 is used as a means for pressing a large number of piece plates 11 and integrating them into a block shape, in short, any other means can be used as long as it generates the force to press the piece plates 11 integrally. Also, this means may be the piece board 11.
It is also possible to act not only at the ends but also at the center, and not only at one location but at multiple locations.
本発明において、駒板１１を押圧する手段は可動型部２
と共に移動するロックブロック１４が装置の構成上、有
利であるが、これに代えてシリンダ装置を使用すること
もできる。In the present invention, the means for pressing the piece plate 11 is the movable mold part 2.
Although the lock block 14 that moves together is advantageous in terms of the structure of the device, a cylinder device can also be used instead.
本発明は、１．）多数の成形品を積層状態で同時に成形
する方法において、キャビティを合い面に形成した複数
枚の駒板を積層し、駒板の積層体を締め付けた状態にお
いて溶融樹脂を注入して成形した後、前記駒板間の締め
付け圧力を解除して駒板間に間隙を形成して後、成形品
を取り出してなる成形方法と、
２、）２枚の型枠板と、該型枠板の合い面の一方、ある
いは双方に形成された凹溝と、該凹溝内に積層状態で収
容され、その合い面にキャビティが形成された複数枚の
駒板と、該駒板の端部あるいは駒板の間に前進・後退し
て前記駒板を加圧 除圧するロックブロックとからなる
成形装置である。The present invention includes 1. ) In a method of simultaneously molding a large number of molded products in a laminated state, a plurality of piece plates with cavities formed on their mating surfaces are laminated, and after molding by injecting molten resin while the stacked body of piece plates is tightened, A molding method in which the clamping pressure between the piece plates is released to form a gap between the piece plates, and then the molded product is taken out; 2.) two formwork plates and one of the mating surfaces of the formwork plates; Alternatively, a groove formed on both sides, a plurality of piece plates accommodated in a stacked state in the groove and cavities formed on their mating surfaces, and an end of the piece plate or the piece plate are moved forward and backward. This molding device includes a lock block that pressurizes and depressurizes the piece plate.
従って、キャビティを形成している側壁の間隔を、成形
時と成形物の取り出し時とで変更することができるので
、通常の成形方法では金型より取り出すことができない
ような付着性の大きな樹脂や固化時に収縮が少ない樹脂
を使用し、しかも、薄い板状のものを多数成形しても、
簡単に金型より剥離させて取り出すことができる。Therefore, the distance between the side walls forming the cavity can be changed between molding and when taking out the molded product, so it is possible to change the distance between the side walls that form the cavity, so it is possible to change the distance between the side walls forming the cavity. We use a resin that shrinks little when solidified, and even when molding a large number of thin plate-shaped items,
It can be easily peeled off from the mold and taken out.
また、薄い板状の成形物を集合状態で成形することがで
きるので、成形工程における生産性を著しく高めること
ができる。Further, since thin plate-shaped molded products can be molded in an aggregated state, productivity in the molding process can be significantly increased.
第１図は本発明の実施例に係る成形装置の概要を示す斜
視図、第２図は成形装置の金型部を示す平面図、第３図
は同金型部の断面図、第４図は本発明の要部を構成する
駒板（キャビティコア）の締め付け手段を示すを示す斜
視図である。更に、第５図ないし第７図は金型の開口状
態の説明図である。
第８図（Ａ）、（Ｂ）は、ビュリティマグネントの正面
図と側面図、第９図はピュリティマグネントの集合体の
成形物の側面図、第１０図は正面図である。
１・・・固定型部（下型部）
２・・・可動型部（上型部）
３・・・ベース ４・・・突出板５・・・可動型
板 ６・・・スライドコア７・・・固定型板
８・・・取付板９・・・コア部材 １０・・・凹溝
１１・・・胸板（キャビティコア）
１２・・・押圧板 １３・・・ガイド棒１４・・
・ロックブロック １５・・・ガイド孔１６・・・溝部
１８・・・キャビティ１９・・・突出ピン。FIG. 1 is a perspective view showing an overview of a molding apparatus according to an embodiment of the present invention, FIG. 2 is a plan view showing a mold section of the molding apparatus, FIG. 3 is a sectional view of the mold section, and FIG. 4 FIG. 2 is a perspective view showing a means for tightening a piece plate (cavity core) that constitutes a main part of the present invention. Furthermore, FIGS. 5 to 7 are explanatory diagrams of the open state of the mold. 8(A) and 8(B) are a front view and a side view of the purity magnet, FIG. 9 is a side view of a molded product of the purity magnet assembly, and FIG. 10 is a front view. 1...Fixed mold part (lower mold part) 2...Movable mold part (upper mold part) 3...Base 4...Protruding plate 5...Movable mold plate 6...Slide core 7.・・Fixed template
8...Mounting plate 9...Core member 10...Concave groove 11...Chest plate (cavity core) 12...Press plate 13...Guide rod 14...
- Lock block 15...Guide hole 16...Groove portion 18...Cavity 19...Protruding pin.
Claims (1)
いて、キャビティを合い面に形成した複数枚の駒板を積
層し、駒板の積層体を締め付けた状態において溶融樹脂
を注入して成形した後、前記駒板間の締め付け圧力を解
除して駒板間に間隙を形成して後、成形品を取り出して
なる成形方法。 ２、２枚の型枠板と、該型枠板の合面の一方、あるいは
双方に形成された凹溝と、該凹溝内に積層状態で収容さ
れ、その合い面にキャビティが形成された複数枚の駒板
と、該駒板の端部あるいは駒板の間に前進・後退して前
記駒板を加圧・除圧するロックブロックとからなる成形
装置。[Claims] 1. In a method for simultaneously molding a large number of molded products in a laminated state, a plurality of piece plates with cavities formed on their mating surfaces are laminated, and molten resin is injected while the stack of piece plates is tightened. A molding method in which the clamping pressure between the piece plates is released to form a gap between the piece plates, and then the molded product is taken out. 2. Two formwork plates, a concave groove formed in one or both of the mating surfaces of the formwork plates, and a molded article housed in a stacked state in the concave groove, with a cavity formed in the mating surface. A molding device comprising a plurality of piece plates and a lock block that moves forward and backward at the end of the piece plates or between the piece plates to pressurize and release pressure from the piece plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2114455A JP2979238B2 (en) | 1990-04-28 | 1990-04-28 | Method and apparatus for simultaneous molding of multiple molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2114455A JP2979238B2 (en) | 1990-04-28 | 1990-04-28 | Method and apparatus for simultaneous molding of multiple molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0412816A true JPH0412816A (en) | 1992-01-17 |
| JP2979238B2 JP2979238B2 (en) | 1999-11-15 |
Family
ID=14638162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2114455A Expired - Fee Related JP2979238B2 (en) | 1990-04-28 | 1990-04-28 | Method and apparatus for simultaneous molding of multiple molded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2979238B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009255329A (en) * | 2008-04-14 | 2009-11-05 | Toyota Boshoku Corp | Manufacturing method of vegetable fiber molded object |
| CN103381649A (en) * | 2013-06-28 | 2013-11-06 | 无锡麻德克斯精机有限公司 | Injection mold of line wheel carrier of secondary coil |
| CN104552814A (en) * | 2015-01-20 | 2015-04-29 | 申富林 | One-mold two-part injection mold |
| JP2022040979A (en) * | 2020-08-31 | 2022-03-11 | 株式会社日立産機システム | Injection mold and injection molding method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931565B (en) * | 2018-01-08 | 2020-01-14 | 合隆防爆电气有限公司 | Metal junction box die-casting die |
-
1990
- 1990-04-28 JP JP2114455A patent/JP2979238B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009255329A (en) * | 2008-04-14 | 2009-11-05 | Toyota Boshoku Corp | Manufacturing method of vegetable fiber molded object |
| CN103381649A (en) * | 2013-06-28 | 2013-11-06 | 无锡麻德克斯精机有限公司 | Injection mold of line wheel carrier of secondary coil |
| CN104552814A (en) * | 2015-01-20 | 2015-04-29 | 申富林 | One-mold two-part injection mold |
| JP2022040979A (en) * | 2020-08-31 | 2022-03-11 | 株式会社日立産機システム | Injection mold and injection molding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2979238B2 (en) | 1999-11-15 |
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