JP2010260297A - Mold and molding apparatus provided with the mold - Google Patents

Mold and molding apparatus provided with the mold Download PDF

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JP2010260297A
JP2010260297A JP2009114397A JP2009114397A JP2010260297A JP 2010260297 A JP2010260297 A JP 2010260297A JP 2009114397 A JP2009114397 A JP 2009114397A JP 2009114397 A JP2009114397 A JP 2009114397A JP 2010260297 A JP2010260297 A JP 2010260297A
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mold
molding material
heating cylinder
cavity
heater
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JP5647399B2 (en
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Toshiomi Sato
俊臣 佐藤
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Sato Seiki Co Ltd
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Sato Seiki Co Ltd
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  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple and inexpensive mold which does not require the setting operation of complicated control conditions, and to provide a molding apparatus provided with the mold. <P>SOLUTION: Since a heater 35 provided at a heating cylinder 31 has an output at which a molding material P injected into a cavity 23 can be melted into state suitable for injection molding, the molding material P is made into molten state having temperature, viscosity or the like suitable for injection molding in a through hole 37. When the pushing shaft 73 is lowered as shown in Fig.4 in this state, the melted molding material P is pushed by the pushing shaft 73 and is injected into a gate 21 and the cavity 23. Then, the molding material injected into the gate 21 and the cavity 23 is solidified to form a molded article S and a gate G. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は射出成形に用いる金型及びこの金型を備えた成形装置に関するものである。   The present invention relates to a mold used for injection molding and a molding apparatus including the mold.

射出成形用の金型として特許文献１に記載されたものがあり、この特許文献１に記載された金型は射出成形装置に搭載されて用いられる。射出成形装置には、加熱筒、スクリュ及び加熱筒や金型の温度をコントロールするための制御装置等を備えている。
そして、この射出成形装置では、ホッパーから投入された成形材料が加熱筒で溶融され、溶融したプラスチック等の成形材料はスクリュによって搬送され、金型のキャビティへ射出されて成形品が形成される。そして、成形品が固化した後、型開きされて成形品がエジェクタピンによって押し出される。 There exists what was described in patent document 1 as a metal mold | die for injection molding, and the metal mold | die described in this patent document 1 is mounted and used for an injection molding apparatus. The injection molding apparatus includes a heating cylinder, a screw, a control apparatus for controlling the temperature of the heating cylinder and the mold, and the like.
In this injection molding apparatus, the molding material thrown from the hopper is melted by the heating cylinder, and the molding material such as the melted plastic is conveyed by the screw and injected into the mold cavity to form a molded product. Then, after the molded product is solidified, the mold is opened and the molded product is pushed out by the ejector pins.

上記の成形品製造の際には、加熱筒や金型の温度を微妙にコントロールする必要があり、このため複数の温度センサーや、これらの温度センサーの検知情報に基づいて加熱筒や金型に設けられたヒーターの出力を制御する制御装置を備えている。この制御装置は、製造する成形品によって載せ換えられる種々の金型に合せて設定する必要がある。
このように、従来の射出成形装置は、複数の温度センサーや制御装置を備えており、しかも載せ換えられる種々の金型に対応して制御装置の設定を変えることができるようになっている。そして、射出成形装置は載せ換えられる金型に合わせて設定される条件うちで、最も高い射出圧力、温度等の設定条件をクリアできるように、想定される最大限の性能を備えている。 When manufacturing the above-mentioned molded products, it is necessary to delicately control the temperature of the heating cylinder and mold. For this reason, multiple temperature sensors and the detection information of these temperature sensors are used for heating cylinders and molds. A control device for controlling the output of the provided heater is provided. This control device needs to be set in accordance with various molds to be replaced depending on the molded product to be manufactured.
As described above, the conventional injection molding apparatus includes a plurality of temperature sensors and control devices, and can change the setting of the control device in accordance with various molds to be replaced. The injection molding apparatus has the maximum possible performance so that the setting conditions such as the highest injection pressure and temperature among the conditions set in accordance with the mold to be replaced can be cleared.

特開２００８−３０２６３４号公報JP 2008-302634 A

従って、射出成形装置はどうしても複雑で高価なものになっており、相当数の成形品を製造しない限り償却できるようなものではなかった。
また、この射出成形装置は、搭載する金型に合せて温度等の制御条件をいちいち設定しなければならない。このため金型を載せ換える度に、煩雑な制御条件の設定作業を行わなければならないという問題もある。
本発明は上記従来の問題点に着目して為されたものであり、単純で安価で、煩雑な制御条件の設定作業を行う必要のない金型及びこの金型を備えた成形装置を提供することを、その目的とする。 Therefore, the injection molding apparatus is inevitably complicated and expensive, and cannot be depreciated unless a considerable number of molded products are manufactured.
Moreover, this injection molding apparatus must set control conditions, such as temperature, according to the metal mold | die mounted. For this reason, there is also a problem that complicated control condition setting work must be performed each time the mold is replaced.
The present invention has been made by paying attention to the above-mentioned conventional problems, and provides a mold that is simple and inexpensive, and that does not require complicated control condition setting work, and a molding apparatus including the mold. That is the purpose.

本発明は上記課題を解決するためになされたものであり、請求項１の発明は、固定側金型と前記固定側金型と共にキャビティを形成する可動側金型とから成る金型本体を有する金型において、前記金型本体に一端側が取り付けられ前記キャビティに連通しヒーターを備えて成形材料を溶融する加熱筒と、前記加熱筒の他端側に取り付けられ加熱筒に連通する成形材料投入口を有する連結部材とを有し、前記金型本体に加熱筒と連結部材が固定されており、前記加熱筒は前記金型本体専用であり、加熱筒に備えられるヒーターは成形材料を溶融すると共に、前記溶融された成形材料がキャビティに射出されて適切な状態で成形品が形成されるように金型本体を加熱するものであることを特徴とする金型である。   The present invention has been made to solve the above-mentioned problems, and the invention of claim 1 has a mold body comprising a fixed mold and a movable mold that forms a cavity together with the fixed mold. In the mold, a heating cylinder having one end attached to the mold body and having a heater connected to the cavity to melt the molding material, and a molding material charging port attached to the other end of the heating cylinder and communicating with the heating cylinder A heating cylinder and a coupling member are fixed to the mold body, the heating cylinder is dedicated to the mold body, and a heater provided in the heating cylinder melts the molding material The mold is characterized in that the mold body is heated so that the molten molding material is injected into the cavity to form a molded product in an appropriate state.

請求項２の発明は、請求項１に記載した金型において、加熱筒と金型本体との間には熱伝達部材が備えられていることを特徴とする金型である。   The invention according to claim 2 is the mold according to claim 1, wherein a heat transfer member is provided between the heating cylinder and the mold body.

請求項３の発明は、請求項１または２に記載した金型において、連結部材を冷却する冷却手段が備えられていることを特徴とする金型である。   A third aspect of the present invention is the mold according to the first or second aspect, further comprising a cooling means for cooling the connecting member.

請求項４の発明は、請求項１から３のいずれかに記載した金型を備え、成形材料をキャビティに押し込む押込手段を有することを特徴とする成形装置である。   According to a fourth aspect of the present invention, there is provided a molding apparatus comprising the mold according to any one of the first to third aspects, further comprising a pushing means for pushing a molding material into the cavity.

本発明の金型及びこの金型を備えた成形装置によれば、単純で安価にでき、煩雑な制御条件の設定作業を行う必要がなくなる。   According to the mold of the present invention and the molding apparatus equipped with the mold, it is simple and inexpensive, and there is no need to perform complicated control condition setting work.

本発明の実施の形態に係る金型の斜視図である。It is a perspective view of the metal mold | die which concerns on embodiment of this invention. 図１の金型を備えた成形装置の斜視図である。It is a perspective view of the shaping | molding apparatus provided with the metal mold | die of FIG. 図１の金型の断面図である。It is sectional drawing of the metal mold | die of FIG. 射出成形が行われる様子を説明するための図である。It is a figure for demonstrating a mode that injection molding is performed. 射出成形が行われる様子を説明するための図である。It is a figure for demonstrating a mode that injection molding is performed. 射出成形が行われる様子を説明するための図である。It is a figure for demonstrating a mode that injection molding is performed.

本発明の実施の形態に係る金型１及びこの金型１を備えた成形装置３を図面にしたがって説明する。
図１において符号５は金型本体を示し、この金型本体５は固定側金型７と可動側金型９とから成る。固定側金型７にはキャビティを構成する凹部１１が設けられており、また固定側金型７の上面の四隅には丸棒状の位置決めピン１７がそれぞれ固定されている。 A mold 1 and a molding apparatus 3 including the mold 1 according to an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 5 denotes a mold body, and the mold body 5 includes a fixed mold 7 and a movable mold 9. The fixed mold 7 is provided with recesses 11 constituting a cavity, and round bar-shaped positioning pins 17 are fixed to the four corners of the upper surface of the fixed mold 7 respectively.

可動側金型９にはキャビティを構成する凸部１９が設けられている。可動側金型９の中央部には上下に貫通するゲート２１が形成されており、このゲート２１は凹部１１と凸部１９とによって形成されるキャビティ２３に連通する。可動側金型９の四隅には位置決めピン１７に対応する図示しない位置決め穴がそれぞれ形成されている。   The movable mold 9 is provided with a convex portion 19 constituting a cavity. A gate 21 penetrating vertically is formed at the center of the movable mold 9, and the gate 21 communicates with a cavity 23 formed by the concave portion 11 and the convex portion 19. Positioning holes (not shown) corresponding to the positioning pins 17 are formed at the four corners of the movable mold 9 respectively.

可動側金型９の上面には平板状の熱伝達部材２５が固定されており、この熱伝達部材２５の下面は全面に亘って可動側金型９の上面に接触している。熱伝達部材２５の上面には円形の凹部２７が形成されている。また熱伝達部材２５の中央部には上下に貫通する貫通孔２９が形成されており、この貫通孔２９はゲート２１に連通している。   A flat plate-shaped heat transfer member 25 is fixed to the upper surface of the movable mold 9, and the lower surface of the heat transfer member 25 is in contact with the upper surface of the movable mold 9 over the entire surface. A circular recess 27 is formed on the upper surface of the heat transfer member 25. Further, a through hole 29 penetrating vertically is formed in the central portion of the heat transfer member 25, and the through hole 29 communicates with the gate 21.

符号３１は加熱筒を示し、この加熱筒３１は熱伝達部材２５の上面に取り付けられており、加熱筒３１は熱伝達部材２５を介して可動側金型９に固定されている。加熱筒３１の一端部（出口側の端部）は熱伝達部材２５の凹部２７に嵌まり込んでいる。これにより加熱筒３１からの熱が熱伝達部材２５に効率よく伝わるようになっている。
加熱筒３１は本体部３３と、この本体部３３に対し埋設状に設けられたヒーター３５とによって構成されている。本体部３３の中央部には上下に貫通する貫通孔３７が設けられており、この貫通孔３７は熱伝達部材２５の貫通孔２９に連通している。ヒーター３５は貫通孔３７を囲むように設けられている。加熱筒３１は金型本体５専用であり、加熱筒３１に備えられるヒーター３５は成形材料Ｐを溶融すると共に、溶融された成形材料Ｐがキャビティ２３に射出されて適切な状態で成形品Ｓが形成されるように金型本体５を加熱するものである。
加熱筒３１の貫通孔３７は貫通孔２９、ゲート２１を介してキャビティ２３に連通している。なお、加熱筒３１の周りにはパンチングメタルによって構成されるカバー３９が設けられている。 Reference numeral 31 denotes a heating cylinder. The heating cylinder 31 is attached to the upper surface of the heat transfer member 25, and the heating cylinder 31 is fixed to the movable mold 9 via the heat transfer member 25. One end portion (end portion on the outlet side) of the heating cylinder 31 is fitted in the concave portion 27 of the heat transfer member 25. Thereby, the heat from the heating cylinder 31 is efficiently transmitted to the heat transfer member 25.
The heating cylinder 31 is constituted by a main body portion 33 and a heater 35 provided embedded in the main body portion 33. A through hole 37 penetrating vertically is provided at the center of the main body 33, and the through hole 37 communicates with the through hole 29 of the heat transfer member 25. The heater 35 is provided so as to surround the through hole 37. The heating cylinder 31 is dedicated to the mold body 5, and the heater 35 provided in the heating cylinder 31 melts the molding material P, and the molten molding material P is injected into the cavity 23 so that the molded product S is in an appropriate state. The mold body 5 is heated so as to be formed.
The through hole 37 of the heating cylinder 31 communicates with the cavity 23 via the through hole 29 and the gate 21. A cover 39 made of punching metal is provided around the heating cylinder 31.

加熱筒３１の他端部（入口側の端部）にはブロック状の連結部材４１が取り付けられており、この連結部材４１は加熱筒３１、熱伝達部材２５を介して可動側金型９に固定されている。連結部材４１は上下に貫通する成形材料投入口４３を有しており、この成形材料投入口４３は加熱筒３１の貫通孔３７に連通している。成形材料投入口４３は途中部分から縮径しており、下側にいくにしたがって窄まっている。
連結部材４１の両側面には多数の放熱用フィン４５がそれぞれ設けられている。
符号４７は冷却手段としての一対のファンを示し、一対のファン４７は連結部材４１に固定されており、一対のファン４７は放熱フィン４５に対向して配置されている。 A block-shaped connecting member 41 is attached to the other end portion (the end portion on the inlet side) of the heating cylinder 31, and this connecting member 41 is attached to the movable mold 9 via the heating cylinder 31 and the heat transfer member 25. It is fixed. The connecting member 41 has a molding material inlet 43 that penetrates vertically, and this molding material inlet 43 communicates with the through hole 37 of the heating cylinder 31. The molding material inlet 43 is reduced in diameter from the middle part and is narrowed as it goes downward.
A large number of heat dissipating fins 45 are provided on both side surfaces of the connecting member 41.
Reference numeral 47 denotes a pair of fans as cooling means. The pair of fans 47 are fixed to the connecting member 41, and the pair of fans 47 are disposed to face the heat radiation fins 45.

符号５１は複数（図３では２つ）のエジェクタピンを示し、複数のエジェクタピン５１は固定側金型７をそれぞれ貫通しており、その先端が後述する成形品Ｓの下面に当接するようになっている。複数のエジェクタピン５１の下端はエジェクタプレート５３で連結されている。複数のエジェクタピン５１、エジェクタプレート５３は図示しない駆動装置によって上昇・下降するようになっている。   Reference numeral 51 denotes a plurality (two in FIG. 3) of ejector pins, and each of the plurality of ejector pins 51 passes through the fixed side mold 7 so that the tip thereof abuts the lower surface of the molded product S described later. It has become. The lower ends of the plurality of ejector pins 51 are connected by an ejector plate 53. The plurality of ejector pins 51 and the ejector plate 53 are raised and lowered by a driving device (not shown).

成形装置３の詳細な構成について説明する。
符号６１は載置台を示し、この載置台６１の上面には金型１を固定するための固定部材６３が設けられている。
載置台６１の側部には支持柱６７が固定され、この支持柱６７の上端部分にはヘッド部７１が備えられている。ヘッド部７１は上下方向に動作でき、任意の位置で固定できるようになっている。 A detailed configuration of the molding apparatus 3 will be described.
Reference numeral 61 denotes a mounting table, and a fixing member 63 for fixing the mold 1 is provided on the upper surface of the mounting table 61.
A support column 67 is fixed to a side portion of the mounting table 61, and a head portion 71 is provided at an upper end portion of the support column 67. The head portion 71 can be moved in the vertical direction and can be fixed at an arbitrary position.

ヘッド部７１には押込シャフト７３とレバー７５が設けられており、レバー７５は連結部材７６を介して押込シャフト７３に連結されている。このヘッド部７１は手動式であり、手でレバー７５を倒す（図２において時計回りの方向へ回動させる）と、押込シャフト７３が下降するようになっている。またレバー７５は図示しないバネの弾性力によって図２において時計回りの方向へ回動する方向に付勢されており、レバー７５から手を放すと、レバー７５が起き上がると共に押込シャフト７３が上昇するようになっている。
上記ヘッド部７１、押込シャフト７３、レバー７５及び連結部材７６によって押込手段が構成されている。 The head portion 71 is provided with a push shaft 73 and a lever 75, and the lever 75 is connected to the push shaft 73 via a connecting member 76. This head portion 71 is a manual type, and when the lever 75 is manually tilted (turned clockwise in FIG. 2), the pushing shaft 73 is lowered. Further, the lever 75 is urged in a direction to rotate clockwise in FIG. 2 by the elastic force of a spring (not shown). When the lever 75 is released, the lever 75 rises and the push shaft 73 rises. It has become.
The head portion 71, the pushing shaft 73, the lever 75, and the connecting member 76 constitute pushing means.

次に、金型１及びこの金型１を備えた成形装置３の動作を説明する。
金型１を型締めすることにより、固定側金型７の凹部１１と可動側金型９の凸部１９とによってキャビティ２３が形成される。また、図示しないスイッチを押すとヒーター３５、ファン４７が作動する。
ヒーター３５が作動すると所定温度で発熱し、この熱が熱伝達部材２５、固定側金型７、可動側金型９に伝わって加熱され、更にキャビティ２３が加熱される。 Next, operation | movement of the metal mold | die 1 and the shaping | molding apparatus 3 provided with this metal mold | die 1 is demonstrated.
By clamping the mold 1, a cavity 23 is formed by the concave portion 11 of the fixed side mold 7 and the convex portion 19 of the movable side mold 9. When a switch (not shown) is pressed, the heater 35 and the fan 47 are activated.
When the heater 35 is activated, heat is generated at a predetermined temperature. This heat is transmitted to the heat transfer member 25, the fixed mold 7 and the movable mold 9, and is further heated.

次に成形材料投入口４３から固形の成形材料Ｐを投入する。
この成形材料Ｐはゲート２１、キャビティ２３の容量と同じ量、即ち射出成形によって１個の成形品を製造するために必要な量に設定されている。投入された成形材料Ｐは加熱筒３１の貫通孔３７内で溶融される。
加熱筒３１に備えられるヒーター３５はキャビティ２３に射出される成形材料Ｐを射出成形に適切な状態に溶融できる出力となっているので、成形材料Ｐは貫通孔３７内で射出成形に適した温度、粘度等を有する溶融状態とされる。
この状態で図４に示すように押込シャフト７３を下降させると、溶融した成形材料Ｐが押込シャフト７３によって押し込まれてゲート２１、キャビティ２３に射出される。そして図５に示すようにゲート２１、キャビティ２３に射出された成形材料が固化して成形品Ｓ、ゲートＧが形成される。 Next, a solid molding material P is charged from the molding material charging port 43.
The molding material P is set to the same amount as the capacities of the gate 21 and the cavity 23, that is, an amount necessary for manufacturing one molded product by injection molding. The charged molding material P is melted in the through hole 37 of the heating cylinder 31.
Since the heater 35 provided in the heating cylinder 31 has an output capable of melting the molding material P injected into the cavity 23 into a state suitable for injection molding, the molding material P has a temperature suitable for injection molding in the through hole 37. , A molten state having a viscosity or the like.
When the pushing shaft 73 is lowered in this state as shown in FIG. 4, the molten molding material P is pushed by the pushing shaft 73 and injected into the gate 21 and the cavity 23. Then, as shown in FIG. 5, the molding material injected into the gate 21 and the cavity 23 is solidified to form the molded product S and the gate G.

また、ヒーター３５の熱は熱伝達部材２５を介して固定側金型７、可動側金型９にも伝達され金型本体５を加熱して、ゲート２１、キャビティ２３の内面が所定の温度なるように加熱され、この熱はゲート２１、キャビティ２３内の成形材料Ｐに伝えられる。これによりゲート２１、キャビティ２３内の成形材料Ｐの流動性が低下したり、成形材料Ｐがキャビティ２３に対し完全に充填される前に固化したりして、成形品Ｓの形成に支障がでることのない状態を保持する。従って、特にヒーター３５の出力をコントロールすることなく、成形材料Ｐを射出成形に適切な温度となるように保つことができる。
なお、ヒーター３５は成形材料Ｐをキャビティ２３に射出する間も作動させたままの状態にしておくが、加熱筒３１の貫通孔３７内と、キャビティ２３内とでは温度差があるため、キャビティ２３に充填された成形材料Ｐは短時間で固化する。 Further, the heat of the heater 35 is also transmitted to the fixed mold 7 and the movable mold 9 through the heat transfer member 25 to heat the mold main body 5, and the inner surfaces of the gate 21 and the cavity 23 reach a predetermined temperature. This heat is transferred to the molding material P in the gate 21 and the cavity 23. As a result, the fluidity of the molding material P in the gate 21 and the cavity 23 is reduced, or the molding material P is solidified before the molding material P is completely filled in the cavity 23, thereby hindering the formation of the molded product S. Maintain a state of nothing. Therefore, it is possible to keep the molding material P at a temperature suitable for injection molding without particularly controlling the output of the heater 35.
The heater 35 is kept in operation while the molding material P is injected into the cavity 23, but there is a temperature difference between the inside of the through hole 37 of the heating cylinder 31 and the inside of the cavity 23. The molding material P filled in is solidified in a short time.

図６に示すように金型本体５を型開きして、図示しない駆動装置を作動させると、一対のエジェクタピン５１が上昇し、成形品Ｓを押し上げる。従って、成形品Ｓが凹部１１から押出される。   As shown in FIG. 6, when the mold body 5 is opened and a driving device (not shown) is operated, the pair of ejector pins 51 rise and the molded product S is pushed up. Accordingly, the molded product S is extruded from the recess 11.

上記動作において、連結部材４１は放熱用フィン４５によって放熱され、更に連結部材４１はファン４７によって冷却されている。このため加熱筒３１からの熱が連結部材４１に伝わってきても連結部材４１は高温にならない。これにより、成形材料Ｐが連結部材４１内で溶融して堆積してしまうことを防止できる。
前述したように成形品製造の際には、単純にヒーター３５を作動させるだけである。このように加熱筒や金型の温度を微妙にコントロールする必要がなく、複数の温度センサーや加熱筒に設けられたヒーターの出力を制御する制御装置等を備える必要もないため安価に製作することができる。 In the above operation, the connection member 41 is radiated by the heat radiation fin 45, and the connection member 41 is further cooled by the fan 47. For this reason, even if the heat from the heating cylinder 31 is transmitted to the connecting member 41, the connecting member 41 does not reach a high temperature. Thereby, it is possible to prevent the molding material P from being melted and deposited in the connecting member 41.
As described above, when the molded product is manufactured, the heater 35 is simply operated. Thus, it is not necessary to delicately control the temperature of the heating cylinder or mold, and it is not necessary to provide a control device for controlling the output of the heaters provided in the plurality of temperature sensors or the heating cylinder, so that it can be manufactured at low cost. Can do.

以上、本発明の実施の形態について詳述してきたが、具体的構成は、この実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲における設計の変更などがあっても発明に含まれる。
上記実施の形態は、ヘッド部７１を手動式にしたが、ヘッド部７１を自動式にしてもよい。
上記実施の形態は、放熱用フィン４５を連結部材４１の両側面にそれぞれ設けたが、放熱用フィン４５を連結部材４１の全部の側面又は３つの側面にそれぞれ設けてもよく、１つの側面だけに設けてもよい。また放熱用フィン４５を設けない構成にしてもよい。
またファン４７の数は２つに限らず適宜変更してもよい。
上記実施の形態では、成形材料Ｐをキャビティ２３に射出する間も、ヒーター３５を作動させたままの状態にしておくが、成形材料の種類、成形品の形状及び金型の大きさ等の条件によってヒーター３５を一時的に停止させる場合もある。 The embodiment of the present invention has been described in detail above. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change without departing from the gist of the present invention. included.
In the above embodiment, the head unit 71 is a manual type, but the head unit 71 may be an automatic type.
In the above embodiment, the heat dissipating fins 45 are provided on both side surfaces of the connecting member 41. However, the heat dissipating fins 45 may be provided on all or three side surfaces of the connecting member 41. May be provided. Further, the heat dissipating fins 45 may not be provided.
The number of fans 47 is not limited to two and may be changed as appropriate.
In the above embodiment, while the molding material P is injected into the cavity 23, the heater 35 is kept operating, but the conditions such as the type of the molding material, the shape of the molded product, and the size of the mold In some cases, the heater 35 may be temporarily stopped.

本発明は、成形材料を使用して射出成形により成形品を製造する製造業に利用可能である。   INDUSTRIAL APPLICABILITY The present invention is applicable to a manufacturing industry that uses a molding material to manufacture a molded product by injection molding.

１…金型 ３…成形装置 ５…金型本体
７…固定側金型 ９…可動側金型 １１…凹部
１７…位置決めピン １９…凸部 ２１…ゲート
２３…キャビティ ２５…熱伝達部材 ２７…凹部
２９…貫通孔 ３１…加熱筒 ３３…本体部
３５…ヒーター ３７…貫通孔 ３９…カバー
４１…連結部材 ４３…成形材料投入口
４５…放熱用フィン ４７…ファン
５１…エジェクタピン ５３…エジェクタプレート
６１…載置台 ６３…固定部材 ６７…支持柱
７１…ヘッド部 ７３…押込シャフト ７５…レバー
７６…連結部材
Ｐ…成形材料 Ｇ…ゲート Ｓ…成形品 DESCRIPTION OF SYMBOLS 1 ... Metal mold 3 ... Molding apparatus 5 ... Mold main body 7 ... Fixed side metal mold 9 ... Movable side metal mold 11 ... Concave part 17 ... Positioning pin 19 ... Convex part 21 ... Gate 23 ... Cavity 25 ... Heat transfer member 27 ... Concave part DESCRIPTION OF SYMBOLS 29 ... Through-hole 31 ... Heating cylinder 33 ... Main-body part 35 ... Heater 37 ... Through-hole 39 ... Cover 41 ... Connecting member 43 ... Molding material insertion port 45 ... Radiation fin 47 ... Fan 51 ... Ejector pin 53 ... Ejector plate 61 ... Mounting base 63 ... Fixing member 67 ... Supporting column 71 ... Head portion 73 ... Pushing shaft 75 ... Lever 76 ... Connecting member P ... Molding material G ... Gate S ... Molded product

Claims (4)

固定側金型と前記固定側金型と共にキャビティを形成する可動側金型とから成る金型本体を有する金型において、前記金型本体に一端側が取り付けられ前記キャビティに連通しヒーターを備えて成形材料を溶融する加熱筒と、前記加熱筒の他端側に取り付けられ加熱筒に連通する成形材料投入口を有する連結部材とを有し、前記金型本体に加熱筒と連結部材が固定されており、前記加熱筒は前記金型本体専用であり、加熱筒に備えられるヒーターは成形材料を溶融すると共に、前記溶融された成形材料がキャビティに射出されて適切な状態で成形品が形成されるように金型本体を加熱するものであることを特徴とする金型。   In a mold having a mold body comprising a fixed mold and a movable mold that forms a cavity together with the fixed mold, one end is attached to the mold body, and a heater is provided in communication with the cavity. A heating cylinder that melts the material, and a connecting member that is attached to the other end of the heating cylinder and has a molding material inlet that communicates with the heating cylinder, and the heating cylinder and the connecting member are fixed to the mold body. The heating cylinder is dedicated to the mold body, and a heater provided in the heating cylinder melts the molding material, and the molten molding material is injected into the cavity to form a molded product in an appropriate state. A mold characterized in that the mold body is heated as described above. 請求項１に記載した金型において、加熱筒と金型本体との間には熱伝達部材が備えられていることを特徴とする金型。   2. A mold according to claim 1, wherein a heat transfer member is provided between the heating cylinder and the mold body. 請求項１または２に記載した金型において、連結部材を冷却する冷却手段が備えられていることを特徴とする金型。   3. The mold according to claim 1, further comprising a cooling means for cooling the connecting member. 請求項１から３のいずれかに記載した金型を備え、成形材料をキャビティに押し込む押込手段を有することを特徴とする成形装置。   A molding apparatus comprising the mold according to any one of claims 1 to 3, further comprising pressing means for pressing a molding material into the cavity.
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