JPH0246139B2 - - Google Patents
Info
- Publication number
- JPH0246139B2 JPH0246139B2 JP59151929A JP15192984A JPH0246139B2 JP H0246139 B2 JPH0246139 B2 JP H0246139B2 JP 59151929 A JP59151929 A JP 59151929A JP 15192984 A JP15192984 A JP 15192984A JP H0246139 B2 JPH0246139 B2 JP H0246139B2
- Authority
- JP
- Japan
- Prior art keywords
- insert
- runner
- mold body
- mold
- cylinder
- 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
- 238000003780 insertion Methods 0.000 claims description 28
- 230000037431 insertion Effects 0.000 claims description 28
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は多数個取り成形金型に関し、一層詳細
には、複数個の入子を互換性を有して、金型本体
に設けられた多角形状の複数個の入子挿入凹部の
いずれへも挿入固定できるようなランナ構造とし
た多数個取り成形金型に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-cavity mold, and more particularly, the present invention relates to a multi-cavity mold, and more particularly, the present invention relates to a multi-cavity mold, and more particularly, to The present invention relates to a multi-cavity molding die having a runner structure that can be inserted and fixed into any of the child insertion recesses.
近年、成形品の用途の多様化、あるいは成形品
在庫の少量化に伴い、多種少量生産の必要性が生
じ、この要請を満たすために、入子のみを交換す
るようにして、金型交換時間の短縮、金型コスト
の低減、金型の小型化による金型ストツクスペー
スの効率的使用を図つている。 In recent years, with the diversification of the uses of molded products and the reduction in the amount of molded product inventory, there has been a need for high-variety, low-volume production. The aim is to reduce mold costs, reduce mold costs, and make more efficient use of mold stock space by downsizing the mold.
そして、入子のみを交換するようにした従来の
成形金型は、特開昭54―137433号公報に示すよう
に、入子および金型本体の入子挿入凹部を四角形
状とし、金型本体を挿通して入子に螺着されるボ
ルトで入子を入子挿入凹部の所定隅部へ引つ張つ
て固定するものがある。 In conventional molding molds in which only the insert is replaced, as shown in JP-A-54-137433, the insert and the insert insertion recess of the mold body are square-shaped, and the mold body There is a bolt that is inserted through the insert and screwed onto the insert, and the insert is pulled and fixed to a predetermined corner of the insert insertion recess.
このようにした成形金型は、入子がその二面を
金型本体の二面の規制面に当接して固定されるの
で、位置決め精度は向上し、入子に形成するキヤ
ビテイやランナ等は前記二面を基準面として加工
されるので、その加工も容易であるという利点を
有する。 In such a molding die, the insert is fixed with its two surfaces in contact with the two regulating surfaces of the mold body, so the positioning accuracy is improved, and the cavities, runners, etc. formed in the insert are fixed. Since the two surfaces are used as reference surfaces for processing, there is an advantage that the processing is easy.
しかるに、同一形状の入子挿入凹部を複数個設
け、いずれの入子挿入凹部へも互換性を有して挿
入固定される複数個の入子を用いた場合、金型本
体および各入子のそれぞれのパーテイング面に刻
設されるランナをどの位置に設けるかが問題とな
る。 However, if a plurality of insert insertion recesses of the same shape are provided and a plurality of inserts are inserted and fixed interchangeably into any of the insert insertion recesses, the mold body and each insert The problem is where to place the runners carved on each parting surface.
すなわち、例えば、入子の前記基準面たる二つ
の当接面が作る隅部へ開口してランナを設け、入
子挿入凹部の前記入子の隅部への対向隅部に開口
して前記入子のランナと連通するランナを設けた
場合には、各入子をいずれの入子挿入凹部へも互
換性を有して挿入可能であるが、入子を入子挿入
凹部に挿入固定した際にその隅部から溶融樹脂が
漏れることのないように互いの隅部を密接させな
ければならず、入子および入子挿入凹部のそれぞ
れの隅部の加工が極めて困難である。 That is, for example, a runner is provided with an opening in a corner formed by the two contact surfaces, which are the reference surfaces of the insert, and a runner is provided with an opening in a corner of the insert insertion recess opposite to the corner of the insert. If a runner that communicates with the child runner is provided, each nest can be inserted interchangeably into any nest insertion recess, but when the nest is inserted and fixed into the nest insertion recess, In order to prevent molten resin from leaking from the corners, the corners must be brought into close contact with each other, and it is extremely difficult to process the corners of the insert and the insert insertion recess.
したがつて、入子のランナと、金型本体のラン
ナとは、入子の入子挿入凹部の規制面への当接面
で連通させるのが好適であるが、入子の一の当接
面にのみランナを開口して形成した場合には、各
入子のランナに連通する金型本体のランナをそれ
ぞれ各入子の専用ランナとしてスプルーから刻設
しなければ、入子を別の入子挿入凹部へ挿入固定
した際に金型本体のランナに連通しないこととな
り、スプルーからのランナの先端を分岐して入子
のランナと連通させるようにしたランナ構造より
も樹脂のランナ部でのムダが多くなるという欠点
がある。 Therefore, it is preferable that the runners of the insert and the runners of the mold body communicate with each other at the abutting surface of the insert insertion recess against the regulating surface of the insert. If the runners are formed with openings only on the surface, the runners on the mold body that communicate with the runners of each insert must be carved from the sprue as dedicated runners for each insert, otherwise the inserts cannot be placed in another insert. When it is inserted and fixed into the child insertion recess, it does not communicate with the runner of the mold body, and the runner structure in which the tip of the runner from the sprue is branched and communicates with the runner of the child is more difficult. The disadvantage is that there is a lot of waste.
本発明は、上記事情に鑑みてなされたものであ
り、その目的とするところは、複数個の多角形状
入子挿入凹部のいずれへも互換性を有して挿入可
能であり、しかも樹脂のムダを最小限度とするこ
とができる成形金型を提供することにある。 The present invention has been made in view of the above circumstances, and its purpose is to enable compatible insertion into any of a plurality of polygonal nest insertion recesses, and to avoid waste of resin. The objective is to provide a mold that can minimize the
その特徴は、金型本体のパーテイング面に開口
されており、少なくとも二面が互いに交差する壁
面で形成され、かつ前記壁面の交差角が互いに等
しい複数個の入子挿入凹部と、入子挿入凹部の前
記壁面によつて位置規制されて入子挿入凹部の
各々に装着される、互いに互換性を有する角型入
子と、金型本体のパーテイング面に刻設されてお
り、各入子挿入凹部の入子位置規制壁面の一方に
出口が設けられ、装着される角型入子の各々に樹
脂を案内するランナと、入子のパーテイング面に
刻設されており、入子位置規制壁面に圧接される
入子の両壁面の各々に、前記両壁面の交差点から
等距離の位置でかつ入子位置規制壁面のランナ出
口と接続可能の位置にランナ入口が設けられ、前
記両ランナ入口を互いに連通するランナがキヤビ
テイの樹脂流入口に接続される接続ランナとを具
備することにある。 Its features include a plurality of nest insertion recesses that are opened in the parting surface of the mold body, and that are formed by wall surfaces on which at least two sides intersect with each other, and the intersecting angles of the wall surfaces are equal to each other; A square insert, which is compatible with each other and whose position is regulated by the wall surface of the die and is installed in each of the insert insertion recesses, and a rectangular insert which is carved on the parting surface of the mold body and which are installed in each of the insert insertion recesses. An outlet is provided on one side of the insert position regulating wall surface, and a runner is provided to guide the resin to each of the square inserts to be installed. A runner inlet is provided on each of the two walls of the nest to be placed at a position equidistant from the intersection of the two walls and at a position connectable to the runner outlet of the nest position regulating wall, and the two runner inlets are communicated with each other. and a connecting runner connected to the resin inlet of the cavity.
以下、本発明の好適な実施例を添付図面に基づ
いて詳細に説明する。 Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.
割型となつている一方の金型のパーテイング面
を示す第１図において（他方の金型も同様に構成
されている）、
１は金型本体であり、この金型本体１には、そ
のパーテイング面中心に十字状の仕切壁１ａを残
して４つの入子挿入凹部２が形成されている。そ
して、仕切壁１ａの直交する２面が各入子挿入凹
部２の規制面２ａとなる。 In Fig. 1 showing the parting surface of one mold which is a split mold (the other mold is constructed in the same way), 1 is a mold body, and this mold body 1 includes Four insert insertion recesses 2 are formed leaving a cross-shaped partition wall 1a at the center of the parting surface. The two perpendicular surfaces of the partition wall 1a serve as regulating surfaces 2a of each nest insertion recess 2.
３は入子挿入凹部２のそれぞれに挿入されてい
る４つの入子であり、外形形状は同一に形成され
ている。すなわち、入子３のパーテイング面形状
はほぼ正方形であり、また前記規制面２ａに当接
する当接面３ａが作る隅部３ｂの反対側隅部は切
り取られて隅部３ｂに向かう押圧面３ｃが形成さ
れている。なおこの押圧面３ｃは入子３の浮き上
がりを防止するため、入子挿入凹部２の底面に向
かう僅かな傾斜面となつている。 Reference numeral 3 designates four inserts inserted into each of the insert insertion recesses 2, and the outer shapes are the same. That is, the shape of the parting surface of the insert 3 is approximately square, and the corner opposite to the corner 3b formed by the abutment surface 3a that abuts the regulation surface 2a is cut off to form a pressing surface 3c facing the corner 3b. It is formed. Note that this pressing surface 3c is a slightly inclined surface toward the bottom surface of the insert inserting recess 2 in order to prevent the insert 3 from floating up.
４は先端面が押圧面３ｃに当接して各入子３を
入子挿入凹部２内に位置決め固定する固定具であ
り、金型本体１内に案内されて第１図中左右方向
に移動自在となつている。 Reference numeral 4 denotes a fixture for positioning and fixing each insert 3 in the insert inserting recess 2 by having its tip surface abut against the pressing surface 3c, and is guided inside the mold body 1 and is movable in the left and right directions in FIG. It is becoming.
５は第１図中上下方向に位置する二つの固定具
４を同時に入子３に向かつて進退させるシリンダ
であり、固定具４の中間位置であつて、固定具４
の進退方向と直角に配置される。そして、シリン
ダ５のシリンダロツド５ａおよびシリンダケース
５ｂにそれぞれ取り付けられた軸６に回動自在な
アーム７およびアーム７の反対方向に延出するア
ーム８が取り付けられており、またアーム７と前
記固定具４とは軸９を介して連結され、アーム８
の先端に設けられた軸１０は金型本体１に設けら
れた溝に案内されて固定具４の移動方向と同一方
向に進退する。 Reference numeral 5 denotes a cylinder that moves two fixtures 4 located vertically in FIG. 1 toward and away from the insert 3 at the same time.
It is placed perpendicular to the direction of advance and retreat. A rotatable arm 7 and an arm 8 extending in the opposite direction of the arm 7 are attached to a shaft 6 attached to the cylinder rod 5a and cylinder case 5b of the cylinder 5, respectively. 4 through a shaft 9, and the arm 8
A shaft 10 provided at the tip of the mold body 1 is guided by a groove provided in the mold body 1 and moves back and forth in the same direction as the moving direction of the fixture 4.
１１はアーム８の前進を規制する停止ピンであ
り、その先端はアーム８の前進位置における軸１
０の周面に当接し、基端は皿バネ１１ａで押圧さ
れている。 Reference numeral 11 denotes a stop pin that restricts the forward movement of the arm 8, and its tip is connected to the shaft 1 in the forward position of the arm 8.
0, and the base end is pressed by a disc spring 11a.
しかして、第１図中右側のシリンダ５のように
縮側に駆動しておき、各入子３を入子挿入凹部２
に挿入し、しかる後に第１図中左側のシリンダ５
のように伸側に駆動すれば固定具４は入子３の押
圧面３ｃを押圧し、入子３の当接面３ａは規制面
２ａに圧接されて、各入子３は位置決め固定され
る。 The cylinder 5 on the right side in FIG.
After that, insert the cylinder 5 on the left side in Figure 1.
When driven to the extension side as shown, the fixture 4 presses the pressing surface 3c of the insert 3, the contact surface 3a of the insert 3 is pressed against the regulating surface 2a, and each insert 3 is positioned and fixed. .
なお、各入子３は同一形状となつているので互
換性を有していずれの入子挿入凹部２にも配置す
ることができ、また、シリンダ５が伸側に駆動さ
れたときは軸６および９，１０の各軸心は同一線
上で一致するので入子３からの反力はシリンダ５
に直接作用せず、専ら皿バネ１１ａに作用するの
で、入子３の固定は安定する。 Since each insert 3 has the same shape, it can be placed in any insert insertion recess 2 with compatibility, and when the cylinder 5 is driven to the extension side, the shaft 6 Since the axes of 9 and 10 coincide on the same line, the reaction force from the insert 3 is applied to the cylinder 5.
Since it does not act directly on the disc spring 11a, but only acts on the disc spring 11a, the fixation of the insert 3 is stable.
次に、前述のように十字状の仕切壁１ａによつ
て互換性を有する入子３の位置決めをするように
した成形金型に用いて好適なランナ構造について
説明すると、
第２図に示すように割型となつている金型のう
ちのノズル側金型本体１の仕切壁１ａ中心にスプ
ルー１２が形成されており、他方の金型本体１の
仕切壁１ａには、そのパーテイング面に、中心か
ら第１図中左右方向に延び、それぞれの先端が二
方向に分岐して前記基準面２ａが作る各隅部から
等距離の位置で各入子３に至るランナ１３が刻設
されている。 Next, a runner structure suitable for use in a molding die in which the compatible insert 3 is positioned by the cross-shaped partition wall 1a as described above will be explained.As shown in FIG. A sprue 12 is formed at the center of the partition wall 1a of the nozzle side mold body 1 of the mold which is divided into two parts, and the partition wall 1a of the other mold body 1 has a sprue 12 on its parting surface. Runners 13 are carved that extend from the center in the left-right direction in FIG. .
各入子３のパーテイング面には、前記ランナ１
３の先端に対応位置してキヤビテイ（図示せず）
から一方の当接面３ａに至るランナ１４、および
二つの当接面３ａが作る隅部３ｂから同じ距離に
位置して他方の当接面３ａに開口するランナ１５
が刻設されており、ランナ１４とランナ１５とは
連通している。 The runner 1 is placed on the parting surface of each nest 3.
A cavity (not shown) is located corresponding to the tip of 3.
A runner 14 that extends from the top to one contact surface 3a, and a runner 15 that opens to the other contact surface 3a and is located at the same distance from the corner 3b formed by the two contact surfaces 3a.
is carved, and the runners 14 and 15 are in communication.
しかして、各入子３はいずれの入子挿入凹部２
へ挿入しても、入子３のランナ１４あるいは１５
のうちのいずれか一方は必ず金型本体１のランナ
１３と連通することとなり、入子３の交換が容易
となる。 Therefore, each insert 3 is inserted into any insert insertion recess 2.
Even if it is inserted into the runner 14 or 15 of nest 3,
Either one of them will necessarily communicate with the runner 13 of the mold body 1, making it easy to replace the insert 3.
次に、複数個の入子３を用い、これを交換する
ことにより、前述のような多種少量生産を行う際
に用いて好適なランナ交換装置について説明する
と、
成形品によつてゲート位置は異なり、必ずしも
第１図に示したようにパーテイング面にランナを
設けたものだけでなく、入子のキヤビテイ底面に
ゲートが形成されているものもある。 Next, we will explain a runner exchange device that uses a plurality of inserts 3 and is suitable for use in the aforementioned high-mix, low-volume production by exchanging them.The gate position differs depending on the molded product. In addition to those in which runners are provided on the parting surface as shown in FIG. 1, there are also those in which a gate is formed on the bottom surface of the cavity of the insert.
したがつて、ゲート位置が異なる入子を交換す
る毎に金型本体を交換したのでは、入子のみを交
換して多種少量生産に適応させるという目的を達
成し得ない。 Therefore, if the mold body is replaced every time inserts with different gate positions are replaced, the purpose of adapting to high-mix, low-volume production by replacing only the inserts cannot be achieved.
そこで、ランナプレート１６を、第２図および
第３図に示すようにノズルブツシユ１７と入子３
のノズル側面との間に位置して金型本体１に案内
され、パーテイング面と平行方向にスライド自在
に配置する。 Therefore, the runner plate 16 is connected to the nozzle bush 17 and the insert 3 as shown in FIGS. 2 and 3.
The mold body 1 is positioned between the mold body 1 and the nozzle side surface of the mold body 1, and is slidably arranged in a direction parallel to the parting surface.
そして、ランナプレート１６のノズル側面に、
ランナプレート１６のスライド方向に所定間隔を
有して溶融樹脂の各種流路が形成されている。 Then, on the nozzle side of the runner plate 16,
Various flow paths for molten resin are formed at predetermined intervals in the sliding direction of the runner plate 16.
すなわち、第３図において、
１８はＸ字状に形成されたランナであり、その
中心にノズルから溶融樹脂が供給され、各先端に
穿設されている透孔１８ａから各入子３の底面に
流出する。 That is, in FIG. 3, 18 is a runner formed in an X-shape, and molten resin is supplied from a nozzle to the center of the runner, and the molten resin is supplied to the bottom surface of each insert 3 from a through hole 18a formed at each tip. leak.
１９は前記ランナ１８の中心からランナプレー
ト１６のスライド方向に所定間隔を有して穿設さ
れた透孔であり、ランナプレート１６がスライド
して透孔１９がノズル対向位置にきたときに、第
２図に示した金型本体１の仕切壁１ａに形成され
ているスプルー１２に連通するものとなる。 Reference numeral 19 denotes a through hole bored at a predetermined interval from the center of the runner 18 in the sliding direction of the runner plate 16, and when the runner plate 16 slides and the through hole 19 comes to a position facing the nozzle. It communicates with the sprue 12 formed in the partition wall 1a of the mold body 1 shown in FIG.
２０はＨ状に形成されたランナであり、その中
心は前記ランナ１８の中心と透孔１９の中心との
間隔と同じ間隔を有して透孔１９からランナプレ
ート１６のスライド方向に形成されている。そし
てこのランナ２０の中心にノズルから供給された
溶融樹脂はランナ２０の各先端に穿設された透孔
２０ａから各入子３の底面に流出することとな
る。 Reference numeral 20 denotes a runner formed in an H shape, the center of which is formed in the sliding direction of the runner plate 16 from the through hole 19 with the same distance as the center of the runner 18 and the center of the through hole 19. There is. The molten resin supplied from the nozzle to the center of the runner 20 flows out to the bottom surface of each insert 3 from through holes 20a formed at each tip of the runner 20.
２１はランナプレート１６をランナ１８、透孔
１９、ランナ２０のそれぞれの中心がノズル中心
と一致した位置で固定するための透孔であり、ラ
ンナプレート１６のスライド方向にランナ１８、
透孔１９、ランナ２０のそれぞれの離隔距離と同
じ間隔で形成されており、位置決めピン２２が挿
入される。 Reference numeral 21 denotes a through hole for fixing the runner plate 16 at a position where the centers of the runner 18, the through hole 19, and the runner 20 coincide with the nozzle center, and the runner 18,
The through holes 19 and the runners 20 are formed at the same distance from each other, and the positioning pins 22 are inserted therein.
２３はランナプレート１６をスライド駆動する
シリンダであり、このシリンダ２３のストローク
はランナ１８の中心と透孔１９の中心との間隔と
ほぼ同じ寸法となつている。したがつて、シリン
ダ２３の一往復動ではランナプレート１６を１ピ
ツチしかスライドできず、このためシリンダ２３
の往復動で順次ランナプレート１６をスライドす
る順送り機構が設けられている。 A cylinder 23 slides and drives the runner plate 16, and the stroke of the cylinder 23 is approximately the same as the distance between the center of the runner 18 and the center of the through hole 19. Therefore, in one reciprocating movement of the cylinder 23, the runner plate 16 can only be slid by one pitch.
A progressive mechanism is provided that sequentially slides the runner plate 16 by reciprocating the runner plate.
この順送り機構は、シリンダ２３のロツド２３
ａの先端に回動自在にかつロツド２３ａの側方に
向くように付勢されて取り付けられ、先端形状が
90度のクサビ状に形成されている係止爪２４と、
ランナプレート１６に前記ロツド２３ａに対応位
置して形成されており、ロツド２３ａを案内する
溝２５と、この溝２５の前記係止爪２４の対向面
に前記ランナ１８と透孔１９との中心ピツチと同
一ピツチで突出し、前記係止爪２４の先端がロツ
ド２３ａの前進あるいは後退に際して係合する複
数個の係合突起２６と、この係合突起２６のうち
の両端の係合突起２６の両外側に位置して前記溝
２５に形成され、前記係止爪２４の方向を切り換
えるための二つの拡幅部２５ａおよび２５ｂとか
ら構成されている。 This sequential feeding mechanism is carried out by the rod 23 of the cylinder 23.
It is rotatably attached to the tip of the rod 23a and biased toward the side of the rod 23a, and the tip shape is
A locking pawl 24 formed in a 90 degree wedge shape,
A groove 25 is formed in the runner plate 16 at a position corresponding to the rod 23a and guides the rod 23a, and a center pitch between the runner 18 and the through hole 19 is formed on the surface of the groove 25 facing the locking pawl 24. A plurality of engaging protrusions 26 that protrude at the same pitch and that the tips of the locking claws 24 engage with when the rod 23a moves forward or backward, and both outer sides of the engaging protrusions 26 at both ends of the engaging protrusions 26 The groove 25 has two widened portions 25a and 25b formed in the groove 25 to switch the direction of the locking pawl 24.
しかして、第３図に示す位置にあるランナプレ
ート１６はランナ１８が使用さこれており、入子
３を交換してランナ２０を使用する場合には、シ
リンダ２３を二往復駆動すればよい。そして透孔
１９を使用する場合には、シリンダ２３を一回往
復動させて係止爪２４を拡幅部２５ａに移動し
て、係止爪２４の向きを変えさらにシリンダ２３
を一回往復させればよく、交換される入子３に応
じた溶融樹脂流路を選択することができる。 Therefore, the runner 18 of the runner plate 16 in the position shown in FIG. 3 is no longer in use, and when the insert 3 is replaced and the runner 20 is used, the cylinder 23 only needs to be driven back and forth twice. When using the through hole 19, the cylinder 23 is reciprocated once to move the locking pawl 24 to the widened portion 25a, and the direction of the locking pawl 24 is changed and the cylinder 23
It is only necessary to reciprocate once, and the molten resin flow path can be selected according to the insert 3 to be replaced.
なお上述の実施例においては、各入子３をその
押圧面３ｃが互いにハ字状となるようにして配置
したが、これに限らず、例えば隣り合う入子３の
押圧面３ｃがＶ字状となるように配置して、先端
がＶ字状となつている固定具で入子３を固定して
もよく、この場合の金型本体のパーテイング面に
刻設されるランナ（図示せず）は前述の実施例に
おけるランナ１３のようにＴ字状に形成され、入
子は互換性を有して、いずれの入子挿入凹部へも
挿入固定できる。 In the above-mentioned embodiment, the respective inserts 3 are arranged so that their pressing surfaces 3c form a V-shape, but the invention is not limited to this. For example, the pressing surfaces 3c of adjacent inserts 3 may be arranged in a V-shape. The insert 3 may be fixed with a fixture having a V-shaped tip.In this case, a runner (not shown) carved on the parting surface of the mold body is formed into a T-shape like the runner 13 in the above embodiment, and the insert is compatible and can be inserted and fixed into any insert insertion recess.
このようにして本発明によれば、多種少量生産
に適応して入子のみを交換する際に、入子はいず
れの入子挿入凹部へも挿入固定することができ、
入子の交換が容易となり、しかも樹脂のムダを最
小限に抑えることができるという著効を奏する。 In this manner, according to the present invention, when only the insert is replaced in order to adapt to high-mix, low-volume production, the insert can be inserted and fixed into any insert insertion recess,
This has the remarkable effect of making it easy to replace the insert and minimizing waste of resin.
以上本発明につき好適な実施例を挙げて種々説
明したが、本発明はこの実施例に限定されるもの
ではなく、発明の精神を逸脱しない範囲内で多く
の改変を施しうることはもちろんのことである。 Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.
図は本発明の好適な実施例を示し、第１図は割
型となつている成形金型のうちの一方のパーテイ
ング面を示す平面図、第２図は第１図のＡ―Ａ断
面図、第３図は第２図のＢ―Ｂ断面図である。
１……金型本体、１ａ……仕切壁、２……入子
挿入凹部、２ａ……規制面、３……入子、３ａ…
…当接面、３ｂ……隅部、３ｃ……押圧面、４…
…固定具、５……シリンダ、５ａ……シリンダロ
ツド、５ｂ……シリンダケース、６……軸、７，
８……アーム、９，１０……軸、１１……停止ピ
ン、１１ａ……皿バネ、１２……スプルー、１
３，１４，１５……ランナ、１６……ランナプレ
ート、１７……ノズルブツシユ、１８……ラン
ナ、１８ａ……透孔、１９……透孔、２０……ラ
ンナ、２０ａ……透孔、２１……透孔、２２……
位置決めピン、２３……シリンダ、２３ａ……ロ
ツド、２４……係止爪、２５……溝、２５ａ，２
５ｂ……拡幅部、２６……係合突起。
The drawings show a preferred embodiment of the present invention, in which Fig. 1 is a plan view showing one parting surface of a split mold, and Fig. 2 is a sectional view taken along line AA in Fig. 1. , FIG. 3 is a sectional view taken along line BB in FIG. 2. DESCRIPTION OF SYMBOLS 1... Mold body, 1a... Partition wall, 2... Insert insertion recess, 2a... Regulation surface, 3... Insert, 3a...
...Abutting surface, 3b... Corner, 3c... Pressing surface, 4...
...Fixing tool, 5...Cylinder, 5a...Cylinder rod, 5b...Cylinder case, 6...Shaft, 7,
8... Arm, 9, 10... Axis, 11... Stop pin, 11a... Belleville spring, 12... Sprue, 1
3, 14, 15...Runner, 16...Runner plate, 17...Nozzle bush, 18...Runner, 18a...Through hole, 19...Through hole, 20...Runner, 20a...Through hole, 21... ...Through hole, 22...
Positioning pin, 23... Cylinder, 23a... Rod, 24... Locking claw, 25... Groove, 25a, 2
5b... Widening portion, 26... Engaging protrusion.
Claims (1)
り、少なくとも二面が互いに交差する壁面で形成
され、かつ前記壁面の交差角が互いに等しい複数
個の入子挿入凹部と、 入子挿入凹部の前記壁面によつて位置規制され
て入子挿入凹部の各々に装着される、互いに互換
性を有する角型入子と、 金型本体のパーテイング面に刻設されており、
各入子挿入凹部の入子位置規制壁面の一方に出口
が設けられ、装着される角型入子の各々に樹脂を
案内するランナと、 入子のパーテイング面に刻設されており、入子
位置規制壁面に圧接される入子の両壁面の各々
に、前記両壁面の交差点から等距離の位置でかつ
入子位置規制壁面のランナ出口と接続可能の位置
にランナ入口が設けられ、前記両ランナ入口を互
いに連通するランナがキヤビテイの樹脂流入口に
接続される接続ランナとを具備することを特徴と
する多数個取り成形金型。[Scope of Claims] 1. A plurality of insert insertion recesses that are opened in the parting surface of the mold body, and that are formed of wall surfaces that intersect with each other on at least two surfaces, and that the intersecting angles of the wall surfaces are equal to each other; a mutually compatible square insert whose position is regulated by the wall surface of the child insertion recess and is installed in each of the child insertion recesses; and a square insert carved on the parting surface of the mold body,
An outlet is provided on one side of the insert position regulating wall surface of each insert insertion recess, and a runner is provided to guide the resin to each of the square inserts to be installed. A runner inlet is provided on each of both walls of the insert that is pressed against the position regulating wall, at a position equidistant from the intersection of the two walls and at a position connectable to the runner outlet of the insert position regulating wall. A multi-cavity molding die, characterized in that the runners that communicate the runner inlets with each other are equipped with a connecting runner that is connected to the resin inlet of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15192984A JPS6129519A (en) | 1984-07-20 | 1984-07-20 | Molding die housing multiple cavities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15192984A JPS6129519A (en) | 1984-07-20 | 1984-07-20 | Molding die housing multiple cavities |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6129519A JPS6129519A (en) | 1986-02-10 |
| JPH0246139B2 true JPH0246139B2 (en) | 1990-10-15 |
Family
ID=15529282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15192984A Granted JPS6129519A (en) | 1984-07-20 | 1984-07-20 | Molding die housing multiple cavities |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6129519A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH043776Y2 (en) * | 1986-05-20 | 1992-02-05 | ||
| JPS639519A (en) * | 1986-06-30 | 1988-01-16 | Nissei Plastics Ind Co | Mold |
| JPH01275026A (en) * | 1988-04-27 | 1989-11-02 | Sankyo Oiruresu Kogyo Kk | Molding die for injection molding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5350264U (en) * | 1976-09-29 | 1978-04-27 |
-
1984
- 1984-07-20 JP JP15192984A patent/JPS6129519A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6129519A (en) | 1986-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |