JP3153207B2 - Plastic injection equipment - Google Patents
Plastic injection equipmentInfo
- Publication number
- JP3153207B2 JP3153207B2 JP15475499A JP15475499A JP3153207B2 JP 3153207 B2 JP3153207 B2 JP 3153207B2 JP 15475499 A JP15475499 A JP 15475499A JP 15475499 A JP15475499 A JP 15475499A JP 3153207 B2 JP3153207 B2 JP 3153207B2
- Authority
- JP
- Japan
- Prior art keywords
- valve pin
- nozzle
- piston
- cylinder
- raw material
- 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
- 238000002347 injection Methods 0.000 title claims description 7
- 239000007924 injection Substances 0.000 title claims description 7
- 239000000463 material Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 description 22
- 238000012856 packing Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
- B29C45/281—Drive means therefor
-
- 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
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
- B29C45/281—Drive means therefor
- B29C2045/2813—Common drive means for several needle valves
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)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プラスチック製品
の射出成形に使用するプラスチック注入装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic injection device used for injection molding of a plastic product.
【０００２】[0002]
【従来の技術】図５は、プラスチック製品の射出成形に
従来から使用されているプラスチック注入装置の一例を
示す縦断面図であって、上板１の下面にはマニホールド
２が設けられており、マニホールド２の下方には固定型
板３が設けられていて、固定型板３の下面には移動型板
４が当接している。そして固定型板３には、上下方向に
ノズル装着孔５が穿設されており、ノズル装着孔５の下
端部と移動型板４の上面との間には、プラスチック製品
を成形するためのキャビティ６が形成されている。2. Description of the Related Art FIG. 5 is a longitudinal sectional view showing an example of a plastic injection device conventionally used for injection molding of a plastic product. A manifold 2 is provided on a lower surface of an upper plate 1, and FIG. A fixed mold plate 3 is provided below the manifold 2, and a movable mold plate 4 is in contact with a lower surface of the fixed mold plate 3. A nozzle mounting hole 5 is formed in the fixed mold plate 3 in a vertical direction, and a cavity for molding a plastic product is provided between a lower end portion of the nozzle mounting hole 5 and an upper surface of the movable mold plate 4. 6 are formed.
【０００３】ノズル装着孔５の中心にはノズル７が装着
されていて、ノズル７の下端部にはノズルチップ８が固
着されてノズルチップ８の下端部の開口９がキャビティ
６に臨んでおり、ノズル７の外周には電熱のヒータ１０
が捲回されている。A nozzle 7 is mounted at the center of the nozzle mounting hole 5, a nozzle tip 8 is fixed to a lower end of the nozzle 7, and an opening 9 at the lower end of the nozzle tip 8 faces the cavity 6. An electric heater 10 is provided around the nozzle 7.
Is wound.
【０００４】ノズル７及びノズルチップ８の中心には、
バルブピン１１が上下方向に変位可能に挿入されてい
て、バルブピン１１が図５に示す下降位置にある時に
は、バルブピン１１の下端はノズルチップ８の開口９を
閉鎖し、バルブピン１１が上昇すると、バルブピン１１
の下端はノズルチップ８の開口９を開くようになってい
る。ノズル７及びノズルチップ８の中心には更にバルブ
ピン１１の外周を囲むように原料通路１２が設けてあっ
て、原料通路１２の下端はノズルチップ８の開口９につ
ながっており、原料通路１２の上端は、ノズル７上面の
バルブピン１１から外れた位置で原料入口１３となって
いる。At the center of the nozzle 7 and the nozzle tip 8,
When the valve pin 11 is inserted so as to be vertically displaceable and the valve pin 11 is in the lowered position shown in FIG. 5, the lower end of the valve pin 11 closes the opening 9 of the nozzle tip 8 and when the valve pin 11 rises, the valve pin 11
The lower end of the nozzle opening 8 opens the opening 9 of the nozzle tip 8. A material passage 12 is further provided at the center of the nozzle 7 and the nozzle tip 8 so as to surround the outer periphery of the valve pin 11, and the lower end of the material passage 12 is connected to the opening 9 of the nozzle tip 8, and the upper end of the material passage 12 Is a raw material inlet 13 at a position off the valve pin 11 on the upper surface of the nozzle 7.
【０００５】バルブピン１１はノズル７よりも上方に延
びていて、マニホールド２を摺動自在に貫通し、バルブ
ピン１１の上端は、上板１に取り付けられているシリン
ダ１４のピストン１５に結合されている。The valve pin 11 extends above the nozzle 7 and slidably penetrates the manifold 2. The upper end of the valve pin 11 is connected to a piston 15 of a cylinder 14 attached to the upper plate 1. .
【０００６】マニホールド２には原料供給路１６が穿設
されていて、原料供給路１６の分岐路１７がノズル７上
面の原料入口１３に連通している。また上板１には、ピ
ストン１５の作動用圧油が給排される油路１８，１９が
穿設されている。A raw material supply path 16 is formed in the manifold 2, and a branch path 17 of the raw material supply path 16 communicates with a raw material inlet 13 on the upper surface of the nozzle 7. The upper plate 1 is provided with oil passages 18 and 19 through which pressure oil for operating the piston 15 is supplied and discharged.
【０００７】上述した図５のプラスチック注入装置でプ
ラスチック製品を射出成形する際には、溶融している高
温のプラスチック原料を原料供給路１６に供給すると、
プラスチック原料は原料供給路１６から分岐路１７、原
料入口１３を通って、原料通路１２内に充満し、ヒータ
１０で加熱されて溶融状態を保持する。そして油路１９
に圧油を供給し、油路１８から圧油を排出しておくと、
図５に示すようにピストン１５はシリンダ１４内で下降
位置となり、これに伴ってバルブピン１１も下降位置に
なり、バルブピン１１の下端はノズルチップ８の開口９
を閉鎖して、原料通路１２内に充満している溶融状態の
プラスチック原料が開口９から射出しないようにする。When injection molding a plastic product with the above-described plastic injection device shown in FIG. 5, a molten high-temperature plastic raw material is supplied to a raw material supply path 16.
The plastic raw material fills the raw material passage 12 from the raw material supply path 16 through the branch path 17 and the raw material inlet 13, and is heated by the heater 10 to maintain a molten state. And oilway 19
When the pressure oil is supplied to and discharged from the oil passage 18,
As shown in FIG. 5, the piston 15 is at the lowered position in the cylinder 14, and accordingly, the valve pin 11 is also at the lowered position, and the lower end of the valve pin 11 is located at the opening 9 of the nozzle tip 8.
Is closed to prevent the molten plastic raw material filling the raw material passage 12 from being injected from the opening 9.
【０００８】油路１８に圧油を供給し、油路１９から圧
油を排出すると、ピストン１５はシリンダ１４内で上昇
位置となり、これに伴ってバルブピン１１も上昇してバ
ルブピン１１の下端はノズルチップ８の開口９を開くた
め、原料通路１２内に充満している溶融状態のプラスチ
ック原料は開口９を通ってキャビティ６に射出され、所
要のプラスチック製品が成形される。When the pressure oil is supplied to the oil passage 18 and the pressure oil is discharged from the oil passage 19, the piston 15 is moved to the raised position in the cylinder 14, and the valve pin 11 is also moved upward, so that the lower end of the valve pin 11 is a nozzle. In order to open the opening 9 of the chip 8, the molten plastic raw material filling the raw material passage 12 is injected into the cavity 6 through the opening 9, and a required plastic product is formed.
【０００９】[0009]
【発明が解決しようとする課題】上述した従来のプラス
チック注入装置は図６の斜視図に示すように、バルブピ
ン１１を昇降させるシリンダ１４は平面形状が円形であ
って、１つのシリンダ１４で１つのバルブピン１１を昇
降させるようになっている。そしてバルブピン１１の下
端でノズルチップ８の開口９（図５参照）を閉鎖するた
めには、原料通路１２内に充満している溶融状態のプラ
スチック原料の圧力、粘度、バルブピン１１を下降させ
る機械的な摺動抵抗に対抗してバルブピン１１を下降さ
せる必要がある。As shown in the perspective view of FIG. 6, in the conventional plastic injection device described above, the cylinder 14 for raising and lowering the valve pin 11 has a circular planar shape, and one cylinder 14 is used for one cylinder. The valve pin 11 is moved up and down. In order to close the opening 9 (see FIG. 5) of the nozzle tip 8 at the lower end of the valve pin 11, the pressure and viscosity of the molten plastic raw material filling the raw material passage 12 and the mechanical mechanism for lowering the valve pin 11 are reduced. It is necessary to lower the valve pin 11 against a great sliding resistance.
【００１０】その為には、バルブピン１１を昇降させる
シリンダ１４に使用する圧油の圧力を高圧にするか、又
はシリンダ１４の有効受圧面積を大きくして対応しなけ
ればならないが、圧油の圧力を高圧にするとパッキンの
寿命に影響があるし、又、バルブピン１１に対すパッキ
ンが溶融プラスチック原料の熱で高温になっているので
その高温と前記高圧の影響で損耗が大きくなるので、圧
油の圧力は通常７０ｋｇｆ／ｃｍ2程度以下で使用され
ている。従ってシリンダ１４の有効受圧面積を大きくす
る為にシリンダ１４の直径を大きくする必要があり、図
７の平面図に示すように直径の大きなシリンダ１４の配
置に伴って、シリンダ１４の直下に配置される各ノズル
７のピッチ間隔が大きくなり、装置全体の水平方向の寸
法が長い大型の装置になってしまう問題があった。For this purpose, the pressure of the pressure oil used for the cylinder 14 for raising and lowering the valve pin 11 must be increased or the effective pressure receiving area of the cylinder 14 must be increased. When the pressure is set to a high pressure, the life of the packing is affected, and since the packing for the valve pin 11 is heated by the heat of the molten plastic raw material, the wear increases due to the high temperature and the high pressure. The pressure is usually used at about 70 kgf / cm 2 or less. Therefore, it is necessary to increase the diameter of the cylinder 14 in order to increase the effective pressure receiving area of the cylinder 14. As shown in the plan view of FIG. However, there is a problem that the pitch interval between the nozzles 7 becomes large, resulting in a large device having a long horizontal dimension of the entire device.
【００１１】本発明はこのような問題を解消し、ノズル
を狭いピッチ間隔で配置し、装置全体の水平方向の寸法
が短く小型な装置で、しかもバルブピンを昇降させるシ
リンダの有効受圧面積を大きくできるプラスチック注入
装置を提供することを目的とするものである。The present invention solves such a problem, the nozzles are arranged at a narrow pitch interval, the horizontal dimension of the entire apparatus is short and small, and the effective pressure receiving area of the cylinder for raising and lowering the valve pin can be increased. It is an object to provide a plastic injection device.
【００１２】[0012]
【課題を解決するための手段】本発明は、溶融状態のプ
ラスチック原料を射出する開口を有するノズルチップが
固着された複数のノズルを一直線上に互いに接近させて
配置し、前記開口を開閉するバルブピンを前記複数の各
ノズルごとに挿入し、前記バルブピンを１つの楕円形状
のシリンダ内に配置された１つのピストンに一直線に並
べて直接結合したことを特徴とするプラスチック注入装
置に係るもので、複数の各ノズルごとに挿入したバルブ
ピンを１つの楕円形状のシリンダ内に配置された１つの
ピストンに一直線に並べて直接結合したため、複数のノ
ズルを互いに接近させて配置して装置全体の水平方向の
寸法を短くすることが可能になり、ピストンも１つであ
るため、従来使用されている円形のシリンダに比べて有
効受圧面積を大きくすることができ、しかもバルブピン
は１つのピストンに一直線に並べて直接結合されている
ため、装置全体の高さも小さくしてコンパクトな装置と
なり、効率的なプラスチック原料の注入をすることがで
きるようになる。SUMMARY OF THE INVENTION The present invention is directed to a valve pin for arranging a plurality of nozzles, each having a nozzle tip having an opening for injecting a plastic material in a molten state, fixed thereto in a straight line, close to each other, and opening and closing the opening. Is inserted for each of the plurality of nozzles, and the valve pin is directly connected to one piston arranged in one elliptical cylinder in a straight line, and is directly connected to the piston. Since the valve pin inserted for each nozzle is directly connected to one piston arranged in one elliptical cylinder in a straight line, a plurality of nozzles are arranged close to each other to shorten the horizontal dimension of the entire device. And the use of a single piston makes it possible to increase the effective pressure receiving area as compared with a conventionally used circular cylinder. In addition, since the valve pin is directly connected to one piston in a straight line, the height of the entire device is reduced, so that the device is compact and the plastic material can be efficiently injected. .
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施の形態を、図
に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.
【００１４】図１は、本発明の実施形態の一例を示す斜
視図であって、複数のノズル７を一直線上に単列に互い
に近接させて配置し、各ノズル７の中心には、それぞれ
バルブピン１１が上下方向に変位可能で、しかもバルブ
ピン１１の上部がノズル７の上方に長く露出するように
挿入されている。FIG. 1 is a perspective view showing an example of the embodiment of the present invention. A plurality of nozzles 7 are arranged in a single line in close proximity to each other in a single row. The valve pin 11 is inserted so that the valve pin 11 can be displaced in the vertical direction, and the upper part of the valve pin 11 is long exposed above the nozzle 7.
【００１５】複数のノズル７はいずれも図５に示した従
来のものと同様に、下端部には開口９を有するノズルチ
ップ８が固着されており、ノズルチップ８の中心にはバ
ルブピン１１の外周を囲む原料通路１２が設けてあっ
て、その原料通路１２の下端はノズルチップ８の開口９
につながっており、原料通路１２の上端は、原料入口１
３（図１参照）につながっていて、バルブピン１１が上
昇した時には、溶融状態のプラスチック原料がノズルチ
ップ８から射出されるようになっている。Each of the plurality of nozzles 7 has a nozzle tip 8 having an opening 9 fixed to the lower end, similarly to the conventional nozzle shown in FIG. A raw material passage 12 surrounding the nozzle tip 8 is provided at the lower end of the raw material passage 12.
The upper end of the raw material passage 12 is connected to the raw material inlet 1.
3 (see FIG. 1), the molten plastic material is injected from the nozzle tip 8 when the valve pin 11 rises.
【００１６】図１に示すノズル７においては、一直線上
に単列に並べて配置する時のピッチ間隔を狭くするた
め、原料入口１３が穿設されているノズル上部フランジ
２０の配置方向の横幅寸法を小さくしている。そしてこ
れら複数のノズル７は、図５に示した従来のものと同様
に外周に電熱のヒータ１０を捲回し、固定型板３に互い
に近接させて穿設したノズル装着孔５に装着され、上側
にマニホールド２が取り付けられる。In the nozzle 7 shown in FIG. 1, the width of the nozzle upper flange 20 in which the raw material inlet 13 is formed is reduced in the arrangement direction in order to reduce the pitch interval when the nozzle 7 is arranged in a single line on a straight line. I'm making it smaller. The plurality of nozzles 7 are wound around the outer periphery of an electric heater 10 in the same manner as the conventional nozzle shown in FIG. The manifold 2 is attached to the.
【００１７】複数のノズル７の中心にそれぞれ上下方向
に変位可能に挿入され、上部がノズル７の上方に長く露
出しているバルブピン１１の上端部は、図２に示すよう
に平面形状が細長い楕円形状の１つのピストン２１に対
し一直線に並べて直接結合し、平面形状が細長い楕円形
状のピストン２１は、このピストン２１の形状に適合す
る図１の平面形状が細長い楕円形状の１つのシリンダ２
２内に配置され、作動用圧油の給排により昇降するよう
になっている。従って各ノズル７のバルブピン１１は、
１つのシリンダ２２内に配置されている１つのピストン
２１（図２参照）によって一斉に昇降されることにな
る。The upper end of the valve pin 11, which is inserted into the center of the plurality of nozzles 7 so as to be vertically displaceable and whose upper part is long exposed above the nozzle 7, has an elongated elliptical planar shape as shown in FIG. The piston 21 having an elongated elliptical planar shape, which is directly connected to the one piston 21 having a shape in a straight line, is formed into a single cylinder 2 having an elongated elliptical planar shape in FIG.
2 to move up and down by the supply and discharge of the operating pressure oil. Therefore, the valve pin 11 of each nozzle 7 is
One piston 21 (see FIG. 2) arranged in one cylinder 22 moves up and down all at once.
【００１８】複数の各ノズル７のバルブピン１１が１つ
のシリンダ２２内に配置されている１つのピストン２１
に一直線に並べて結合されるため、図３に示すように複
数のノズル７の上方で隙間なく連続した状態で１つのピ
ストン２１が存在するようになるため、有効受圧面積が
大きくなって作動圧油の圧力を高圧にしなくて済むよう
になり、バルブピン１１に対するパッキンの損耗も軽減
される。図４は楕円シリンダによる有効受圧面積が大き
くなることを示すもので、右側の独立した円形ピストン
（径＝Ｄ）をピストンロッド（径＝ｄ）ピッチｌで等間
隔に並置した場合の受圧面積はそれぞれハッチングで示
したとおりであるが、これを同一ピッチ同一寸法で楕円
シリンダで結合した左の図ではハッチングで示した有効
受圧面積がはるかに大となる。これによりバルブピンを
昇降するために必要な力を一定とすれば、楕円シリンダ
を使用することにより、各ノズルチップ８（図１参照）
間のピッチを小さくすることが可能となる。One piston 21 in which the valve pins 11 of the plurality of nozzles 7 are arranged in one cylinder 22
As shown in FIG. 3, one piston 21 is present in a continuous state without any gap above the plurality of nozzles 7 as shown in FIG. Need not be increased, and the wear of the packing on the valve pin 11 is reduced. FIG. 4 shows that the effective pressure receiving area by the elliptical cylinder increases. When the independent circular piston (diameter = D) on the right side is juxtaposed at equal intervals with a piston rod (diameter = d) pitch l, the pressure receiving area is as follows. Each of them is as shown by hatching, but the effective pressure receiving area shown by hatching is much larger in the figure on the left where these are connected by an elliptical cylinder with the same pitch and the same dimensions. As a result, if the force required to raise and lower the valve pin is constant, each nozzle tip 8 (see FIG. 1) can be obtained by using an elliptical cylinder.
The pitch between them can be reduced.
【００１９】[0019]
【発明の効果】本発明は、溶融状態のプラスチック原料
を射出するノズルを互いに近接させて一直線上にスッキ
リと作業に便利なように配置し、装置全体の水平方向の
寸法を短くして小形化でき、ピストンにかかる油圧力、
空圧力の有効受圧面積が大きくなるため、作動圧力を高
圧にせずにノズルチップより射出された溶融プラスチッ
ク原料の反力に抗してバルブピン作動が可能になり、作
動流体用の周辺機器も安価な機器が使用でき、パッキン
の損耗を軽減できる効果もある。According to the present invention, the nozzles for injecting the plastic material in the molten state are arranged close to each other in a straight line so that the work can be performed clearly and conveniently, and the horizontal size of the entire apparatus can be shortened and downsized. Oil pressure on the piston,
Since the effective pressure receiving area of the air pressure is increased, the valve pin can be operated against the reaction force of the molten plastic material injected from the nozzle tip without increasing the operating pressure, and peripheral equipment for working fluid is inexpensive. There is also an effect that the device can be used and the wear of the packing can be reduced.
【００２０】本発明は更に、複数のバルブピンが１つの
ピストンに直接結合されているため、ピストンが嵌合す
るシリンダとノズルとの間にバルブピンをセットして駆
動させるための複雑で大きな寸法をもつ機構が介在せ
ず、装置全体の高さも小さくしてコンパクトな装置と
し、ノズルの開口に対するバルブピンの高さ調節も外部
より簡単に調整でき、効率的にプラスチック原料の注入
をすることができる効果がある。Further, the present invention has a complicated and large size for setting and driving the valve pin between the cylinder and the nozzle in which the piston is fitted, since a plurality of valve pins are directly connected to one piston. With no mechanism involved, the height of the entire device is reduced to make it compact and the height of the valve pin with respect to the nozzle opening can be easily adjusted from the outside, so that the plastic material can be injected efficiently. is there.
【図１】本発明の実施形態の一例を示す斜視図である。FIG. 1 is a perspective view showing an example of an embodiment of the present invention.
【図２】本発明の実施形態の要部を示す斜視図である。FIG. 2 is a perspective view showing a main part of the embodiment of the present invention.
【図３】本発明の実施形態のピストンとノズル配置とを
示す平面図である。FIG. 3 is a plan view showing a piston and a nozzle arrangement according to the embodiment of the present invention.
【図４】有効受圧面積増大の説明図である。FIG. 4 is an explanatory diagram of an effective pressure receiving area increase.
【図５】従来装置の一例を示す縦断面図である。FIG. 5 is a longitudinal sectional view showing an example of a conventional device.
【図６】従来装置の要部を示す斜視図である。FIG. 6 is a perspective view showing a main part of a conventional device.
【図７】従来装置のシリンダとノズル配置とを示す平面
図である。FIG. 7 is a plan view showing a cylinder and a nozzle arrangement of a conventional device.
７ ノズル ８ ノズルチップ ９ 開口 １１ バルブピン ２１ ピストン ２２ シリンダ 7 Nozzle 8 Nozzle tip 9 Opening 11 Valve pin 21 Piston 22 Cylinder
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤谷 貴之 東京都江東区東陽四丁目10番４号 日本 ディー・エム・イー株式会社内 (72)発明者 滝原 將孝 東京都江東区東陽四丁目10番４号 日本 ディー・エム・イー株式会社内 (72)発明者 秋山 博 千葉県鎌ケ谷市北中沢1426−31 (56)参考文献 特開 平10−166395（ＪＰ，Ａ) 実開 平４−137818（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 45/00 - 45/84 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Takayuki Fujitani, Inventor, Takayuki Fujitani 4-10-4 Toyo, Koto-ku, Tokyo Japan (72) Inventor Masataka Takihara 4-10, Toyo, Koto-ku, Tokyo No. 4 Japan DE M Co., Ltd. (72) Inventor Hiroshi Akiyama 1426-31 Kitanakazawa, Kamagaya-shi, Chiba (56) References JP-A-10-166395 (JP, A) Japanese Utility Model No. 4-137818 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) B29C 45/00-45/84
Claims (1)
開口を有するノズルチップが固着された複数のノズルを
一直線上に互いに接近させて配置し、前記開口を開閉す
るバルブピンを前記複数の各ノズルごとに挿入し、前記
バルブピンを１つの楕円形状のシリンダ内に配置された
１つのピストンに一直線に並べて直接結合したことを特
徴とするプラスチック注入装置。1. A plurality of nozzles, each having a nozzle tip having an opening for injecting a plastic material in a molten state, fixedly arranged close to each other in a straight line, and a valve pin for opening and closing the opening is provided for each of the plurality of nozzles. A plastic injection device wherein the valve pin is inserted and directly connected to one piston arranged in one elliptical cylinder in a straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15475499A JP3153207B2 (en) | 1999-06-02 | 1999-06-02 | Plastic injection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15475499A JP3153207B2 (en) | 1999-06-02 | 1999-06-02 | Plastic injection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000343560A JP2000343560A (en) | 2000-12-12 |
| JP3153207B2 true JP3153207B2 (en) | 2001-04-03 |
Family
ID=15591186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15475499A Expired - Lifetime JP3153207B2 (en) | 1999-06-02 | 1999-06-02 | Plastic injection equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3153207B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100488053B1 (en) * | 2002-03-18 | 2005-05-06 | 허남욱 | Hot runner system connected multiple nozzles |
| DE20216125U1 (en) | 2002-10-18 | 2003-01-23 | Heitec Heisskanaltechnik Gmbh | Device for opening and closing injection nozzles in an injection mold |
| NL1026839C2 (en) * | 2004-08-13 | 2006-02-14 | S P G Promatrix B V | Injection device for hot runner arrangement for plastic moulding tool, has valve drive device formed by movable partition wall inside chamber |
| KR100670763B1 (en) * | 2005-11-04 | 2007-01-17 | 권희성 | Accelerator supply apparatus |
| DE102008007495A1 (en) * | 2008-02-05 | 2009-08-06 | Semperit Ag Holding | Shim and method of making the same |
| JP2011020421A (en) * | 2009-07-21 | 2011-02-03 | Heiwa Denki:Kk | Valve system |
| JP5971962B2 (en) * | 2012-01-27 | 2016-08-17 | 株式会社尾関ホットランナープラン | Multi-point injection molding equipment |
-
1999
- 1999-06-02 JP JP15475499A patent/JP3153207B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000343560A (en) | 2000-12-12 |
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