JP3889417B2 - Injection mold - Google Patents

Injection mold Download PDF

Info

Publication number
JP3889417B2
JP3889417B2 JP2004216838A JP2004216838A JP3889417B2 JP 3889417 B2 JP3889417 B2 JP 3889417B2 JP 2004216838 A JP2004216838 A JP 2004216838A JP 2004216838 A JP2004216838 A JP 2004216838A JP 3889417 B2 JP3889417 B2 JP 3889417B2
Authority
JP
Japan
Prior art keywords
mold
flow rate
adjusting member
rate adjusting
communication hole
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.)
Active
Application number
JP2004216838A
Other languages
Japanese (ja)
Other versions
JP2006035549A (en
Inventor
玉雄 武田
Original Assignee
三昌工業 株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三昌工業 株式会社 filed Critical 三昌工業 株式会社
Priority to JP2004216838A priority Critical patent/JP3889417B2/en
Publication of JP2006035549A publication Critical patent/JP2006035549A/en
Application granted granted Critical
Publication of JP3889417B2 publication Critical patent/JP3889417B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Description

この発明は、射出成型用金型、特に上型と下型との間に中間型を配設した金型であって、多数個のゴム製品を同時に成型する射出成型用金型に関するものである。   The present invention relates to an injection mold, particularly a mold in which an intermediate mold is disposed between an upper mold and a lower mold, and relates to an injection mold for simultaneously molding a large number of rubber products. .

一般に、金型によるゴムの射出成型は、上型と下型の突き合わせ面に設けたキャビティにランナを介してスプルから未加硫ゴムを注入又は射出して充填し、これを加硫して製造される。しかしながら、このような二分割金型では、上型と下型との突き合わせ面に形成したキャビティにおいてのみしか成型することができないため、生産性が低い。そのため、大量生産には適さず、大量生産をするには、射出成形機の設置台数を増加するしかない。射出成形機の設置台数を増加すると、設備費や人件費が増大し、その結果製品のコストアップの原因となる。   In general, rubber injection molding using a mold is performed by injecting or injecting or injecting unvulcanized rubber from a sprue into a cavity provided on the butt surface of the upper mold and lower mold, and vulcanizing this. Is done. However, such a two-part mold can be molded only in the cavity formed on the abutting surface between the upper mold and the lower mold, so that the productivity is low. Therefore, it is not suitable for mass production, and the only way to mass production is to increase the number of installed injection molding machines. Increasing the number of installed injection molding machines increases equipment costs and labor costs, and as a result, increases the cost of the product.

これらの問題を解決するために、上型と下型との間に中間型を配設し、中間型と上型および中間型と下型のそれぞれの突き合わせ面にキャビティを形成し、すべての型を密閉させたとき、中間型に穿設した連通孔から未加硫ゴムを各キャビティに充填するようにした射出成型用金型が用いられる。   In order to solve these problems, an intermediate mold is disposed between the upper mold and the lower mold, and cavities are formed on the respective butting surfaces of the intermediate mold and the upper mold and between the intermediate mold and the lower mold. An injection mold is used in which each cavity is filled with unvulcanized rubber through a communication hole formed in the intermediate mold when the is sealed.

例えば、図8は、従来の中間型を設けた多段式の射出成型用金型を示す。図において、1は上型、2は中間型、3は下型であり、前記中間型2と上型1との突き合わせ面には、密閉状態となる多数個取りのキャビティ4が形成されており、一方、前記中間型2と下型3との突き合わせ面には、密閉状態となる多数個取りのキャビティ5が形成されている。上型1の中央部には、未加硫ゴムを注入又は射出するスプル孔6が形成されており、前記スプル孔6は漸次中間型に向かってテーパ状に拡径している。   For example, FIG. 8 shows a conventional multistage injection mold provided with an intermediate mold. In the figure, reference numeral 1 denotes an upper die, 2 denotes an intermediate die, and 3 denotes a lower die. A multi-cavity 4 is formed on the abutment surface between the intermediate die 2 and the upper die 1 so as to be sealed. On the other hand, a multi-cavity 5 is formed on the abutment surface between the intermediate mold 2 and the lower mold 3 so as to be sealed. A sprue hole 6 for injecting or injecting unvulcanized rubber is formed at the center of the upper die 1, and the sprue hole 6 gradually increases in diameter toward the intermediate die.

また、中間型2の中央部には、原材料である未加硫ゴムを供給する連通孔7が、前記スプル孔6と連通するように穿設されている。前記キャビティ4には、ランナ8を介してスプル孔6からの未加硫ゴムが充填され、キャビティ5には、スプル孔6から連通孔7に供給されてきた未加硫ゴムがランナ9を介して充填される。   A communication hole 7 for supplying unvulcanized rubber, which is a raw material, is formed in the central portion of the intermediate mold 2 so as to communicate with the sprue hole 6. The cavity 4 is filled with unvulcanized rubber from the sprue hole 6 via the runner 8, and the unvulcanized rubber supplied from the sprue hole 6 to the communication hole 7 is filled into the cavity 5 via the runner 9. Filled.

ところで、中間型2を有する射出成型用金型では、中間型2の上下両面に形成された多数個取りのキャビティ4,5には同一製品を成型する場合には、同量の未加硫ゴムが供給されることが好ましい。しかしながら、ゴム材質、成型条件等によって必ずしも同量の未加硫ゴムが供給されとは限らない。   By the way, in the injection mold having the intermediate mold 2, when the same product is molded in the multicavities 4 and 5 formed on the upper and lower surfaces of the intermediate mold 2, the same amount of unvulcanized rubber is used. Is preferably supplied. However, the same amount of unvulcanized rubber is not always supplied depending on the rubber material, molding conditions, and the like.

そこで、前記連通孔7の流路断面積を小さめに穿設しておいて、連通孔7の一部を削って拡げながら充填量を調節する方法が行われている。即ち、予め小さめに穿設した連通孔7のままで初回の成型を行い、次に、連通孔の内面を切削して流路を拡げて再度成型し、このようにして連通孔7の内面の切削を繰り返しながら充填量を調節することが行われていた。   Therefore, a method of adjusting the filling amount while drilling a part of the communication hole 7 and expanding the communication hole 7 while making the flow passage cross-sectional area of the communication hole 7 small is performed. That is, the first molding is performed with the communication hole 7 drilled smaller in advance, and then the inner surface of the communication hole is cut to widen the flow path and molded again. Thus, the inner surface of the communication hole 7 is formed. The filling amount was adjusted while repeating cutting.

このようにして、連通孔7の内面を切削することによって充填量を調節する場合は、微妙な切削が要求されるために、熟練を要するとともに、削りすぎた場合には、金型自体を使用することができなくなる。金型を使用できなくなると、金型代や人件費が無駄になる。また、材質や成型条件が変われば、未加硫ゴムの充填速度や充填量等の成型条件を変更しなければならない。しかしながら、連通孔7の形状を成型条件によって一定にするとそれに固定されてしまうので、成型条件を変更する必要が生じた場合にも同じ金型は使用することができなくなるという問題があった。   In this way, when the filling amount is adjusted by cutting the inner surface of the communication hole 7, since fine cutting is required, skill is required, and in the case of excessive cutting, the mold itself is used. Can not do. If the mold cannot be used, the mold cost and labor cost are wasted. Further, if the material and molding conditions change, the molding conditions such as the filling speed and filling amount of the unvulcanized rubber must be changed. However, if the shape of the communication hole 7 is made constant according to the molding conditions, it is fixed to the molding conditions, so that there is a problem that the same mold cannot be used even if it is necessary to change the molding conditions.

そこで、この発明は、連通孔を切削して調節することなしに、中間型の上下において同量の未加硫ゴムを充填することができ、且つゴム材質等の成型条件が変わっても対応可能な射出成型用金型を提供することを課題とする。   Therefore, the present invention can fill the same amount of unvulcanized rubber in the upper and lower portions of the intermediate mold without cutting and adjusting the communication hole, and can cope with changes in molding conditions such as rubber material. It is an object to provide a mold for injection molding.

この発明に係る射出成型用金型は、上型と1又は2以上の中間型と下型とを備えた射出成型用金型において、前記中間型の上下面に開口するネジ孔にキャビティに充填する未加硫ゴムの充填量を調節する流量調節部材のオスネジを螺合してなり、前記流量調節部材の軸方向には未加硫ゴムの流路となる連通孔を穿設してなり、前記流量調節部材を回動させて上下動させることによって、流量調節部材の端面が中間型の上面又は下面に僅かに突出することを特徴とする。前記流量調節部材の長さ寸法をL1とし、中間型の厚さ寸法をL2とすると、L1≦L2であることが好ましい。   An injection mold according to the present invention is an injection mold having an upper mold, one or more intermediate molds, and a lower mold, and a cavity is filled in screw holes opened on the upper and lower surfaces of the intermediate mold. A male screw of a flow rate adjusting member for adjusting the filling amount of the unvulcanized rubber to be screwed, and a communication hole serving as a flow path for the unvulcanized rubber is formed in the axial direction of the flow rate adjusting member, The end surface of the flow rate adjusting member slightly protrudes from the upper surface or the lower surface of the intermediate mold by rotating the flow rate adjusting member to move up and down. When the length dimension of the flow rate adjusting member is L1, and the thickness dimension of the intermediate mold is L2, it is preferable that L1 ≦ L2.

この発明に係る射出成型用金型の流量調節部材には、回動させるための係止部が設けられており、前記係止部は、連通孔を多角形とすることによって連通孔と兼ねて形成することができる。また、流量調節部材を回動させるための係止部は、連通孔の端部に形成した多角形穴とするか、連通孔の端部に形成した溝とするか、端面に突設した多角形状の凸部とすることができる。   The flow rate adjusting member of the injection mold according to the present invention is provided with a locking portion for rotating, and the locking portion also serves as a communication hole by making the communication hole polygonal. Can be formed. The locking portion for rotating the flow rate adjusting member is a polygonal hole formed at the end of the communication hole, a groove formed at the end of the communication hole, or a polygon protruding from the end surface. It can be a convex part of shape.

また、前記射出成型用金型を構成する中間型の上面のキャビティと下面のキャビティの形状は、同一であってもよいし、異なっていてもよい。   In addition, the shape of the cavity on the upper surface and the cavity on the lower surface of the intermediate mold constituting the injection mold may be the same or different.

この発明に係る射出成型用金型によれば、キャビティへの未加硫ゴムの流量を流量調節部材を回動させて上下動させるだけ調節することができるから、流量の調節が容易であり、従来のように連通孔を削りすぎて中間型を無駄にすることがない。また、流量の調節が容易であるから、調節しながらの成型回数を減少させることによって材料の削減、生産効率のアップを図ることができる。また、流量を自在に調節することができるから、ゴム材質等の成型条件が変わっても対応可能な射出成型用金型を提供することができる。   According to the injection mold according to the present invention, the flow rate of the unvulcanized rubber to the cavity can be adjusted only by moving the flow rate adjusting member up and down, so that the flow rate can be easily adjusted. As in the past, the communication hole is not cut too much and the intermediate mold is not wasted. Further, since the flow rate can be easily adjusted, the material can be reduced and the production efficiency can be increased by reducing the number of moldings while adjusting. Further, since the flow rate can be freely adjusted, it is possible to provide an injection mold that can cope with changes in molding conditions such as a rubber material.

以下、図面を参照してこの発明に係る射出成型用金型の実施の形態を説明する。参照する図面において、図1は、一実施形態に係る射出成型用金型の要部を示す断面図、図2は、未加硫ゴムの流量を調節する調節部材と前記流量調節部材が螺合するネジ孔を設けた中間型の要部斜視図、図3は、流量調節部材をネジ孔に螺合した状態の中間型の要部断面図である。   Embodiments of an injection mold according to the present invention will be described below with reference to the drawings. In the drawings to be referred to, FIG. 1 is a cross-sectional view showing a main part of an injection mold according to an embodiment, and FIG. 2 is a diagram showing a screwing of an adjusting member for adjusting the flow rate of unvulcanized rubber and the flow rate adjusting member. FIG. 3 is a cross-sectional view of the main part of the intermediate mold in a state in which the flow rate adjusting member is screwed into the screw hole.

一実施形態に係る射出成型用金型は、図1に示すように、上型11、中間型12、下型13によって構成されており、上型11の中央部には、スプル孔16が穿設されている。前記スプル孔16は、中間型12に向かって漸次テーパ状に拡径するように穿設されている。なお、上型11と下型13に当接する上熱板および下熱板については、従来と同様の構成であるから図示するのを省略した。   As shown in FIG. 1, an injection mold according to an embodiment includes an upper mold 11, an intermediate mold 12, and a lower mold 13, and a sprue hole 16 is formed at the center of the upper mold 11. It is installed. The sprue hole 16 is formed so as to gradually increase in diameter toward the intermediate mold 12 in a tapered shape. The upper heating plate and the lower heating plate that are in contact with the upper die 11 and the lower die 13 have the same configuration as the conventional one, and are not shown.

そして、前記中間型12と上型11との突き合わせ面には、突き合わせたとき密閉状態となるキャビティ14が形成されており、一方、前記中間型12と下型13とには、同じく密閉状態となるキャビティ15が形成されている。中間型12の中央部には、キャビティ14,15への未加硫ゴムの充填量を同一に調節するための流量調節部材25が設けられている。   A cavity 14 is formed on the abutting surface of the intermediate mold 12 and the upper mold 11 so as to be in a sealed state when they are butted. On the other hand, the intermediate mold 12 and the lower mold 13 are also in a sealed state. A cavity 15 is formed. A flow rate adjusting member 25 for adjusting the filling amount of the unvulcanized rubber into the cavities 14 and 15 to be the same is provided at the center of the intermediate mold 12.

図4は、キャビティよランナとスプルとの関係を示す説明図であって、中心部のスプル部20にランナ部21を介して同一の製品形状である円環状キャビティ成型品22が円形状に多数個配置されている。即ち、図2に示すように、中間型12の上下面には、流量調節部材25を中心にしてキャビティ14,15が円形状に配置されており、ランナ18,19が放射状に設けられている。   FIG. 4 is an explanatory view showing the relationship between the runner and the sprue from the cavity, and a large number of annular cavity molded products 22 having the same product shape are formed in a circular shape through the runner portion 21 at the sprue portion 20 in the center. Are arranged. That is, as shown in FIG. 2, cavities 14 and 15 are arranged in a circular shape around the flow rate adjusting member 25 on the upper and lower surfaces of the intermediate mold 12, and runners 18 and 19 are provided radially. .

次に、この発明の特徴である流量調節部材25について説明する。流量調節部材25は、軸方向中心部に連通孔25aを穿設し、外周面にオスネジ25bを刻設した略円筒状体であって、中間型12に設けたネジ孔26のメスネジと螺合するように構成されている。前記連通孔25aは、上型11と中間型12とを突き合わせたとき、前記スプル孔16と連通するように形成されている。   Next, the flow rate adjusting member 25 that is a feature of the present invention will be described. The flow rate adjusting member 25 is a substantially cylindrical body having a communication hole 25a formed in the central portion in the axial direction and a male screw 25b formed on the outer peripheral surface. Is configured to do. The communication hole 25a is formed so as to communicate with the sprue hole 16 when the upper mold 11 and the intermediate mold 12 are brought into contact with each other.

さらに、前記流量調節部材25の長さ寸法は、中間型12の厚さ寸法と同じか、僅かに小さく形成されており、流量調節部材25の長さ寸法をL1とし、中間型12の厚さ寸法をL2とすると、L1≦L2となるように形成されている。これは、ランナ18,19を通って各キャビティ14,15に供給される未加硫ゴムの流量を調節するものであるから、調節不要な場合には、流量調節部材25の螺合位置はそのままでよいが、キャビティ14への供給量がキャビティ15への供給量よりも多い場合には、流量調節部材25を上型11側に上昇させてキャビティ14への供給量を減少させ、キャビティ15への供給量と同じくなるように調節するためである。   Further, the length dimension of the flow rate adjusting member 25 is the same as or slightly smaller than the thickness dimension of the intermediate mold 12, and the length dimension of the flow rate adjusting member 25 is L1, and the thickness of the intermediate mold 12 is set. When the dimension is L2, it is formed so that L1 ≦ L2. This is for adjusting the flow rate of the unvulcanized rubber supplied to the cavities 14 and 15 through the runners 18 and 19, so that the screwing position of the flow rate adjusting member 25 remains as it is when adjustment is unnecessary. However, when the supply amount to the cavity 14 is larger than the supply amount to the cavity 15, the flow rate adjusting member 25 is raised to the upper mold 11 side to reduce the supply amount to the cavity 14, and to the cavity 15. It is for adjusting so that it may become the same supply amount.

前記流量調節部材25の外周面に刻設したオスネジ25bとネジ孔26とは、流量調節部材25の上下動を微調整できるように、ピッチを小さくすることが好ましい。また、流量調節部材25には、回動させるための係合部が設けられている。図1〜図3に示す実施形態では、流量調節部材25の連通孔25aは、回動可能なように係合部を兼ねた平面六角形に形成されている。前記連通孔25aの形状は、工具を挿入して回動可能な形状であればよく、前記六角形に限定されるものではなく、使用する工具に合わせて三角形、四角形、八角形等任意の形状とすることができる。また、前記連通孔25aの断面積の大きさは、成型する製品の大きさ、形状、取り数、流量調節部材25の長さ等によって適宜決定すればよく、特に限定されるものではない。   It is preferable that the male screw 25b and the screw hole 26 carved on the outer peripheral surface of the flow rate adjusting member 25 have a small pitch so that the vertical movement of the flow rate adjusting member 25 can be finely adjusted. Further, the flow rate adjusting member 25 is provided with an engaging portion for rotating. In the embodiment shown in FIGS. 1 to 3, the communication hole 25 a of the flow rate adjusting member 25 is formed in a planar hexagonal shape that also serves as an engaging portion so as to be rotatable. The shape of the communication hole 25a is not limited to the hexagonal shape as long as it can be rotated by inserting a tool. It can be. Further, the size of the cross-sectional area of the communication hole 25a may be appropriately determined depending on the size, shape, number of products to be molded, the length of the flow rate adjusting member 25, and the like, and is not particularly limited.

次に、流量調節部材25の他の実施形態を、図5〜図6に基づいて説明する。図5〜図6に示す流量調節部材は、回動させるための係合部の形状が異なるのみであるから、同一構成については同一符号を付してその説明は省略する。図5は、連通孔を円形の連通孔27とし、上端部に六角穴27aを形成したものである。この実施形態では、連通孔25aの場合と同様に、六角棒によって回動させることができる。前記六角穴27aは、三角穴、四角穴、八角穴等に変更することができるのは勿論である。   Next, another embodiment of the flow rate adjusting member 25 will be described with reference to FIGS. Since the flow rate adjusting member shown in FIGS. 5 to 6 is different only in the shape of the engaging portion for rotating, the same components are denoted by the same reference numerals and description thereof is omitted. In FIG. 5, the communication hole is a circular communication hole 27, and a hexagonal hole 27a is formed at the upper end. In this embodiment, it can be rotated by a hexagonal bar as in the case of the communication hole 25a. Of course, the hexagonal hole 27a can be changed to a triangular hole, a square hole, an octagonal hole or the like.

また、図6は、流量調節部材25の連通孔を円形の連通孔27とし、上端面に係合部としてプラス状溝28を設けた場合を示している。前記プラス状溝28は、マイナス状溝に変更することは可能である。このように、流量調節部材25の上面にプラス状溝28やマイナス状溝を設けた場合には、ドライバ等を係合させて回動させることができる。また、図7は、流量調節部材25の連通孔を円形の連通孔27とし、上端面に係合部として六角形状の凸部29設けた場合を示している。   FIG. 6 shows a case where the communication hole of the flow rate adjusting member 25 is a circular communication hole 27 and a plus-shaped groove 28 is provided as an engaging portion on the upper end surface. The plus groove 28 can be changed to a minus groove. As described above, when the plus-shaped groove 28 or the minus-shaped groove is provided on the upper surface of the flow rate adjusting member 25, the driver can be engaged and rotated. FIG. 7 shows a case where the communication hole of the flow rate adjusting member 25 is a circular communication hole 27 and a hexagonal convex portion 29 is provided as an engaging portion on the upper end surface.

上記図5〜図7に示す実施形態の六角穴27、プラス状溝28、六角形状凸部29等の係合部は、流量調節部材25の一方側の端部に設けたが、両端部に設けてもよい。係合部を流量調節部材25の両端部に設けた場合には、いずれの側からも回動させることができる。   The engaging portions such as the hexagonal hole 27, the plus-shaped groove 28, and the hexagonal convex portion 29 of the embodiment shown in FIGS. 5 to 7 are provided at one end of the flow rate adjusting member 25. It may be provided. When the engaging portions are provided at both ends of the flow rate adjusting member 25, the engaging portions can be rotated from either side.

この発明では、上記構成のように中間型12の略中央部に未加硫ゴムの流路となる連通孔25a、27を有する流量調節部材25を螺合させてなる。従って、前記流量調節部材25を回動させることによって、中間型12の上面又は下面に前記流量調節部材25の上面又は下面を突出させることができるから、中間型12の上面又は下面におけるランナの隙間の断面積を調節することができ、未加硫ゴムの流量を調節することができる。   In the present invention, the flow rate adjusting member 25 having the communication holes 25a and 27 serving as the flow path for the unvulcanized rubber is screwed into the substantially central portion of the intermediate mold 12 as described above. Therefore, by rotating the flow rate adjusting member 25, the upper surface or the lower surface of the flow rate adjusting member 25 can be protruded from the upper surface or the lower surface of the intermediate die 12. And the flow rate of the unvulcanized rubber can be adjusted.

このようにして、この発明の構成によれば、従来のように、中間型の連通孔を削って断面積を拡げる必要がなく、流量調節部材25を回動させるだけで簡単に中間型の上下面における各キャビティへの未加硫ゴム量を適切に調節することができる。図示する実施形態のように、中間型の上下面のキャビティを同一形状の製品用として形成した場合には、1.8〜1.9倍の生産効率をアップさせることができる。   Thus, according to the configuration of the present invention, it is not necessary to cut the communication hole of the intermediate mold to increase the cross-sectional area as in the prior art, and the upper of the intermediate mold can be easily adjusted by simply rotating the flow rate adjusting member 25. The amount of unvulcanized rubber to each cavity on the lower surface can be adjusted appropriately. When the cavities on the upper and lower surfaces of the intermediate mold are formed for products having the same shape as in the illustrated embodiment, the production efficiency can be increased by 1.8 to 1.9 times.

なお、上記実施形態では、中間型は1個の場合について説明したが、同様の中間型を2個以上多段に配置することも可能である。この場合、それぞれの中間型における流量調節部材を回動させて未加硫ゴム量を調節すればよい。また、中間型の上下面のキャビティの形状は、製品の形状によって変更することも可能である。例えば、上型と中間型との突き合わせ面には平面三角形状の製品用キャビティを形成し、下型と中間型との突き合わせ面には、平面四角形状の製品用キャビティを形成してもよい。このように、ゴム材料が同一であれば異形製品の同時成型が可能である。   In the above-described embodiment, the case where there is one intermediate mold has been described. However, two or more similar intermediate molds can be arranged in multiple stages. In this case, the amount of unvulcanized rubber may be adjusted by rotating the flow rate adjusting member in each intermediate mold. Further, the shape of the cavity on the upper and lower surfaces of the intermediate mold can be changed according to the shape of the product. For example, a planar triangular product cavity may be formed on the abutting surface of the upper mold and the intermediate mold, and a planar rectangular product cavity may be formed on the abutting surface of the lower mold and the intermediate mold. As described above, if the rubber material is the same, it is possible to simultaneously mold different shaped products.

この発明の一実施形態に係る中間型を備えた射出成型用金型を示す断面図である。It is sectional drawing which shows the metal mold | die for injection molding provided with the intermediate mold | type which concerns on one Embodiment of this invention. 中間型における流量調節部材を取り外した状態の要部を示す斜視図である。It is a perspective view which shows the principal part of the state which removed the flow volume adjustment member in the intermediate type. 流量調節部材を螺合した状態の中間型の要部を示す断面図である。It is sectional drawing which shows the principal part of the intermediate | middle type | mold of the state which screwed the flow volume adjustment member. 連通孔とランナとキャビティとの関係を示す説明用平面図である。It is an explanatory top view which shows the relationship between a communicating hole, a runner, and a cavity. 流量調節部材の第2実施形態を示す斜視図である。It is a perspective view which shows 2nd Embodiment of a flow volume adjustment member. 同じく流量調節部材の第3実施形態を示す斜視図である。It is a perspective view which similarly shows 3rd Embodiment of a flow volume adjustment member. さらに、流量調節部材の第3実施形態を示す斜視図である。Furthermore, it is a perspective view which shows 3rd Embodiment of a flow volume adjustment member. 中間型を備えた従来の射出成型用金型を示す断面図である。It is sectional drawing which shows the conventional injection mold provided with the intermediate mold.

符号の説明Explanation of symbols

11:上型
12:中間型
13:下型
14,15:キャビティ
16:スプルブッシュ
16:スプル孔
25:流量調節部材
25a:連通孔
25b:オスネジ
26:ネジ孔
27:円形の連通孔
27:六角穴
28:プラス状溝
29:六角形状凸部
11: Upper mold
12: Intermediate type
13: Lower die 14, 15: Cavity
16: Sprue bush
16: Sprue hole 25: Flow rate adjusting member 25a: Communication hole 25b: Male screw 26: Screw hole 27: Circular communication hole 27: Hexagon hole 28: Plus-shaped groove 29: Hexagonal convex part

Claims (8)

上型と1又は2以上の中間型と下型とを備えた射出成型用金型において、前記中間型の上下面に開口するネジ孔にキャビティに充填する未加硫ゴムの充填量を調節する流量調節部材のオスネジを螺合してなり、前記流量調節部材の軸方向には未加硫ゴムの流路となる連通孔を穿設してなり、前記流量調節部材を回動させて上下動させることによって、流量調節部材の端面が中間型の上面又は下面に僅かに突出することを特徴とする射出成型用金型。   In an injection mold having an upper mold, one or two or more intermediate molds, and a lower mold, the filling amount of unvulcanized rubber that fills cavities in screw holes opened on the upper and lower surfaces of the intermediate mold is adjusted. A male screw of the flow rate adjusting member is screwed, and a communication hole serving as a flow path for unvulcanized rubber is formed in the axial direction of the flow rate adjusting member, and the flow rate adjusting member is rotated to move up and down. An injection mold, wherein the end surface of the flow rate adjusting member slightly protrudes from the upper surface or the lower surface of the intermediate mold. 請求項1に記載の射出成型用金型であって、流量調節部材の長さ寸法をL1とし、中間型の厚さ寸法をL2とすると、L1≦L2であることを特徴とする射出成型用金型。   2. The mold for injection molding according to claim 1, wherein the length of the flow rate adjusting member is L1, and the thickness of the intermediate mold is L2, L1 ≦ L2. Mold. 請求項1又は2に記載の射出成型用金型であって、流量調節部材には、回動させるための係止部が設けられており、前記係止部は、連通孔を多角形とすることによって連通孔と兼ねて形成してなることを特徴とする射出成型用金型。   3. The injection mold according to claim 1 or 2, wherein the flow rate adjusting member is provided with a locking portion for rotating, and the locking portion has a polygonal communication hole. An injection mold characterized in that it is also formed as a communication hole. 請求項1又は2に記載の射出成型用金型であって、流量調節部材には回動させるための係止部が設けられており、前記係止部は、連通孔の端部に形成した多角形穴であることを特徴とする射出成型用金型。   The injection mold according to claim 1 or 2, wherein the flow rate adjusting member is provided with a locking portion for rotating, and the locking portion is formed at an end of the communication hole. An injection mold characterized by a polygonal hole. 請求項1又は2に記載の射出成型用金型であって、流量調節部材には回動させるための係止部が設けられており、前記係止部は、連通孔の端部に形成した溝であることを特徴とする射出成型用金型。   The injection mold according to claim 1 or 2, wherein the flow rate adjusting member is provided with a locking portion for rotating, and the locking portion is formed at an end of the communication hole. Injection mold characterized by being a groove. 請求項1又は2に記載の射出成型用金型であって、流量調節部材には回動させるための係止部が設けられており、前記係止部は、前記流量調節部材の端面に突設した多角形状の凸部であることを特徴とする射出成型用金型。   The injection mold according to claim 1 or 2, wherein the flow rate adjusting member is provided with a locking portion for rotating, and the locking portion projects from an end surface of the flow rate adjusting member. A mold for injection molding, which is a polygonal convex portion provided. 請求項1又は2に記載の射出成型用金型であって、中間型の上面のキャビティと下面のキャビティの形状が同一であることを特徴とする射出成型用金型。   3. The injection mold according to claim 1 or 2, wherein the shape of the cavity on the upper surface and the cavity on the lower surface of the intermediate mold is the same. 請求項1又は2に記載の射出成型用金型であって、中間型の上面のキャビティと下面のキャビティの形状が異なることを特徴とする射出成型用金型。   3. The injection mold according to claim 1, wherein the shape of the cavity on the upper surface and the cavity on the lower surface of the intermediate mold are different.
JP2004216838A 2004-07-26 2004-07-26 Injection mold Active JP3889417B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004216838A JP3889417B2 (en) 2004-07-26 2004-07-26 Injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004216838A JP3889417B2 (en) 2004-07-26 2004-07-26 Injection mold

Publications (2)

Publication Number Publication Date
JP2006035549A JP2006035549A (en) 2006-02-09
JP3889417B2 true JP3889417B2 (en) 2007-03-07

Family

ID=35901055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004216838A Active JP3889417B2 (en) 2004-07-26 2004-07-26 Injection mold

Country Status (1)

Country Link
JP (1) JP3889417B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6831775B2 (en) * 2017-12-27 2021-02-17 株式会社日立産機システム Connection structure of mold and hot water pipe of mold

Also Published As

Publication number Publication date
JP2006035549A (en) 2006-02-09

Similar Documents

Publication Publication Date Title
JPH07137179A (en) Production of assembly of movably-connected two members
CA2636832C (en) Improved neck block cooling
JPH0255113A (en) Injection die
US20070104824A1 (en) Laminant hot runner manifold
US7922472B2 (en) Mold for use in injection molding process
JP3889417B2 (en) Injection mold
KR101340672B1 (en) A core assembly of mold and the casting wooden pattern using the core assembly
CN102145527A (en) Injection mould with insert structure
CN109483807B (en) Deformable injection mold
CN1962230B (en) Mould for molding plastic lens
KR101507492B1 (en) Plus driver bit and method for manufacuring the same
US20120054984A1 (en) Air tool handle
CN210552781U (en) High-compatibility injection mold
KR20220101222A (en) Molding method for having boss structure with high dimensional accuracy
CN206718355U (en) There is the demoulding mould of glue part for top surface
CN113400592B (en) Mould with turnover runner
WO2005060726A1 (en) Insert-molded synthetic resin spade and method of manufacturing the same
JPS5944215B2 (en) injection mold
CN206953449U (en) Mould balance injecting glue governor motion
CN211074533U (en) Control valve for changing direction and flow of main runner of mold
CN210880669U (en) Increase remaining injection mold of runner aggregate
CN206733504U (en) There is the path moulding demoulding mould of annular groove on hole wall
JP4790515B2 (en) William score forming parts and mold production model
KR200432932Y1 (en) Material supplying structure for mould assembly
JP2009000842A (en) Method of manufacturing synthetic resin made coil spring, intermediate matter of the same, and mold used for manufacturing the same

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20061115

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20061124

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20061129

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 3889417

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091208

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101208

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111208

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121208

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131208

Year of fee payment: 7

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250