JP2008110356A - Structure for preventing casting fin in die - Google Patents

Structure for preventing casting fin in die Download PDF

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JP2008110356A
JP2008110356A JP2006293675A JP2006293675A JP2008110356A JP 2008110356 A JP2008110356 A JP 2008110356A JP 2006293675 A JP2006293675 A JP 2006293675A JP 2006293675 A JP2006293675 A JP 2006293675A JP 2008110356 A JP2008110356 A JP 2008110356A
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main body
mold
casting
cast
gap
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Katsutoshi Hakiri
勝利 羽切
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Hanano Shoji KK
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Hanano Shoji KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for preventing a casting fin in a die, which does not require a finish-work for removing the casting fin and prevents the development of a casting defect, such as casting blow hole. <P>SOLUTION: In a fixed die 1 constituted by assembling a core pin 11 and a main body 12, this fin preventive structure 5A which is arranged in between the core pin 11 and the main body 12, is constituted with a gap 51 which exists in the interval between the matching surface 111 of the core pin 11 and the matching surface 121 of the main body 12 and opens in the inner surface 101 of the die and is positioned near the inner surface 101 of the die and into which the molten steel can flow, and a space 52 for reserving the molten steel, which communicates with the gap 51 and is formed in the matching surface 121 of the main body 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、鋳造用金型において鋳ばりの発生を防止するための構造に関するものである。   The present invention relates to a structure for preventing the occurrence of flashing in a casting mold.

例えばダイカスト鋳造用の金型には、消耗しやすい部分や破損しやすい部分等を別体の部品で構成したものがある。すなわち、そのような金型は、複数個の部品を組み合わせて構成されている。例えば、図１１に示す金型では、可動型１が、コアーピン１１という部品と、本体１２という部品とを、組み合わせて構成されている（特許文献１参照）。また、図１４に示す金型では、可動型１が、コアーピン１１と、第１本体１３と、第２本体１４と、第３本体１５とを、組み合わせて構成されており、固定型２が、第１本体２１と、第２本体２２とを、組み合わせて構成されている。
特開平８−１０９３１号公報 For example, some die casting molds include parts that are easily consumed and parts that are easily damaged, etc., formed of separate parts. That is, such a mold is configured by combining a plurality of parts. For example, in the mold shown in FIG. 11, the movable mold 1 is configured by combining a component called a core pin 11 and a component called a main body 12 (see Patent Document 1). In the mold shown in FIG. 14, the movable mold 1 is configured by combining the core pin 11, the first main body 13, the second main body 14, and the third main body 15, and the fixed mold 2 is The first main body 21 and the second main body 22 are combined.
JP-A-8-10931

しかしながら、図１１に示す金型では、図１２に示すように、コアーピン１１の合わせ面１１１と本体１２の合わせ面１２１との間に隙間３１ができてしまうため、溶湯が隙間３１に侵入して凝固し、図１３に示すように、鋳造製品４に鋳ばり４１ができてしまう。そのため、鋳造作業において、鋳ばり４１を除去するための仕上げ作業、例えば、ショットブラスト、グラインダー等、を必要とするという問題があった。また、隙間３１には、離型剤や、冷却水等の水分が、侵入することもあり、侵入した水分は、鋳造後にガスの発生源となり、鋳巣を発生させる。したがって、図１１に示す金型では、鋳巣という鋳造欠陥が発生するという問題があった。   However, in the mold shown in FIG. 11, a gap 31 is formed between the mating surface 111 of the core pin 11 and the mating surface 121 of the main body 12 as shown in FIG. As a result of solidification, as shown in FIG. Therefore, in the casting operation, there is a problem that a finishing operation for removing the casting flash 41, for example, shot blasting, a grinder or the like is required. In addition, moisture such as a mold release agent or cooling water may enter the gap 31. The intruded moisture becomes a gas generation source after casting and generates a cast hole. Therefore, the mold shown in FIG. 11 has a problem that a casting defect called a casting hole occurs.

また、図１４に示す金型では、図１１に示す金型と同様に、コアーピン１１の合わせ面１１１と第２本体１４の合わせ面１４１との間に隙間３１ができてしまうため、図１１に示す金型と同じ問題があり、更に、隣接する本体の合わせ面同士の間、具体的には、第１本体１３の合わせ面１３１と第２本体１４の合わせ面１４２との間、第２本体１４の合わせ面１４３と第３本体１５の合わせ面１５１との間、及び、第１本体２１の合わせ面２１１と第２本体２２の合わせ面２２１との間に、隙間ができてしまうため、図１１に示す金型と同じ問題が多くあった。図１５は、図１４の金型から得られる鋳造製品４である。この鋳造製品４には、鋳ばり４１の他に、合わせ面１３１、１４２に起因した鋳ばり４２、合わせ面１４３、１５１に起因した鋳ばり４３、合わせ面２１１、２２１に起因した鋳ばり４４ができている。   In addition, in the mold shown in FIG. 14, a gap 31 is formed between the mating surface 111 of the core pin 11 and the mating surface 141 of the second main body 14 as in the mold shown in FIG. There is the same problem as the mold shown, and further, between the mating surfaces of adjacent main bodies, specifically, between the mating surface 131 of the first main body 13 and the mating surface 142 of the second main body 14, the second main body 14 and the mating surface 151 of the third main body 15, and between the mating surface 211 of the first main body 21 and the mating surface 221 of the second main body 22, there are gaps. There were many same problems as the mold shown in FIG. FIG. 15 is a cast product 4 obtained from the mold of FIG. In this cast product 4, in addition to the casting beam 41, there are a casting beam 42 caused by the mating surfaces 131 and 142, a casting beam 43 caused by the mating surfaces 143 and 151, and a casting beam 44 caused by the mating surfaces 211 and 221. is made of.

本発明は、鋳ばりを除去するための仕上げ作業を不要にでき、また、鋳巣等の鋳造欠陥の発生を防止できる、金型の鋳ばり防止構造を、提供することを目的とする。   SUMMARY OF THE INVENTION An object of the present invention is to provide a mold flash prevention structure that can eliminate a finishing operation for removing a flash and can prevent casting defects such as a cast hole.

本発明は、複数個の部品が組み合わされて構成された鋳造用金型において、隣接する部品間に設けられた鋳ばり防止構造であって、隣接する部品の合わせ面同士の間に存在しており、且つ、金型内面に開いており、且つ、金型内面の近傍に位置している、溶湯が侵入可能な隙間と、上記隙間に連通しており、且つ、隣接する部品の合わせ面同士の少なくとも一方の合わせ面に形成されている、溶湯貯留用空間と、によって構成されていることを特徴としている。   The present invention relates to a cast-in prevention structure provided between adjacent parts in a casting mold configured by combining a plurality of parts, and exists between the mating surfaces of adjacent parts. And a gap that is open on the inner surface of the mold and is located in the vicinity of the inner surface of the mold so that the molten metal can enter, and the mating surfaces of adjacent parts that communicate with the gap. And a molten metal storage space that is formed on at least one of the mating surfaces.

本発明によれば、キャビティ内に注入された溶湯が、隙間に侵入して空間に貯まる。そして、隙間にて凝固した溶湯の細片と、空間にて凝固した溶湯の塊とが、連結して、一体物となる。したがって、金型を開いて鋳造製品を取り出す際、細片と塊とが金型にそのまま残る。それ故、鋳ばりの無い鋳造製品を得ることができる。よって、鋳造作業において、鋳ばりを除去するための仕上げ作業を不要にでき、したがって、鋳造作業の生産性を向上できる。   According to the present invention, the molten metal injected into the cavity enters the gap and accumulates in the space. Then, the molten metal piece solidified in the gap and the molten metal piece solidified in the space are connected to form an integrated object. Thus, when the mold is opened and the cast product is removed, the strips and lumps remain in the mold. Therefore, a cast product without casting can be obtained. Therefore, in the casting operation, a finishing operation for removing the flash can be made unnecessary, and thus the productivity of the casting operation can be improved.

更に、鋳造を一度行った後においては、隙間が細片で塞がれている。それ故、次の鋳造作業において、離型剤や、冷却水等の水分が、隙間に侵入することはない。したがって、鋳巣の発生を防止できる。   Furthermore, after the casting has been carried out once, the gap is closed with fine pieces. Therefore, in the next casting operation, moisture such as a mold release agent and cooling water does not enter the gap. Therefore, it is possible to prevent the formation of a cast hole.

［第１実施形態］
図１は、本発明の鋳ばり防止構造を採用したダイカスト鋳造用金型の一例を示す縦断面図である。この金型１０は、可動型１と固定型２とからなっている。固定型２には、スリーブ９１とプランジャ９２とで構成された射出部９が設けられている。可動型１は、コアーピン１１と本体１２とを、組み合わせて構成されている。すなわち、可動型１は、２個の部品を組み合わせて構成されている。 [First Embodiment]
FIG. 1 is a longitudinal sectional view showing an example of a die-casting die that employs the flash prevention structure of the present invention. The mold 10 includes a movable mold 1 and a fixed mold 2. The fixed mold 2 is provided with an injection portion 9 composed of a sleeve 91 and a plunger 92. The movable mold 1 is configured by combining a core pin 11 and a main body 12. That is, the movable mold 1 is configured by combining two parts.

そして、コアーピン１１の合わせ面１１１と本体１２の合わせ面１２１との間には、図１の一部拡大図である図２に示すように、鋳ばり防止構造５Ａが設けられている。鋳ばり防止構造５Ａは、隙間５１と空間５２とによって構成されている。隙間５１は、合わせ面１１１と合わせ面１２１との間に存在しており、且つ、可動型１の内面１０１に開いており、且つ、内面１０１の近傍に位置している。隙間５１は、溶湯が侵入可能な大きさを有している。空間５２は、隙間５１に連通しており、且つ、合わせ面１２１に形成されている。空間５２は、溶湯を貯留可能な大きさを有している。なお、空間５２は、コアーピン１１を円周方向に囲んで設けられている。   And between the mating surface 111 of the core pin 11 and the mating surface 121 of the main body 12, as shown in FIG. 2, which is a partially enlarged view of FIG. The cast-in prevention structure 5 </ b> A includes a gap 51 and a space 52. The gap 51 exists between the mating surface 111 and the mating surface 121, is open to the inner surface 101 of the movable mold 1, and is positioned in the vicinity of the inner surface 101. The gap 51 has a size that allows the molten metal to enter. The space 52 communicates with the gap 51 and is formed on the mating surface 121. The space 52 has a size capable of storing molten metal. The space 52 is provided so as to surround the core pin 11 in the circumferential direction.

上記構成の鋳ばり防止構造５Ａを備えた金型１０を用いてダイカスト鋳造を行うと、射出部９から金型１０のキャビティ１００内に注入された溶湯８は、図３に示すように、キャビティ１００内に充填されていくとともに、隙間５１にも流入して空間５２に貯まる。そして、溶湯８が凝固した後に、金型１０を開いて鋳造製品４を取り出す際においては、隙間５１にて凝固した溶湯の細片８１に空間５２にて凝固した溶湯の塊８２が連結しているため、細片８１と塊８２とが、一体物として、可動型１にそのまま残る。それ故、図５に示すような、鋳ばり４１（図１３）ができていない鋳造製品４が得られる。   When die casting is performed using the mold 10 provided with the cast-in prevention structure 5A having the above-described configuration, the molten metal 8 injected into the cavity 100 of the mold 10 from the injection portion 9 is, as shown in FIG. As it fills 100, it also flows into the gap 51 and accumulates in the space 52. When the mold 10 is opened after the molten metal 8 is solidified and the cast product 4 is taken out, the molten metal mass 82 solidified in the space 52 is connected to the molten metal strip 81 solidified in the gap 51. Therefore, the strips 81 and the lump 82 remain as they are in the movable mold 1 as an integrated object. Therefore, a casting product 4 as shown in FIG. 5 in which the flashing 41 (FIG. 13) is not obtained is obtained.

したがって、上記構成の鋳ばり防止構造５Ａによれば、鋳ばりの無い鋳造製品４を得ることができるので、鋳造作業において、鋳ばりを除去するための仕上げ作業を不要にでき、したがって、鋳造作業の生産性を向上できる。   Therefore, according to the cast-in preventing structure 5A having the above-described structure, the cast product 4 without cast-in can be obtained, so that it is not necessary to perform a finishing operation for removing the cast-in in the casting operation. Can improve productivity.

更に、上記構成の鋳ばり防止構造５Ａを備えた金型１０を用いて、ダイカスト鋳造を一度行った後においては、図４に示すように、隙間５１が細片８１で塞がれている。それ故、次の鋳造作業において、離型剤や、冷却水等の水分が、隙間５１に侵入することはない。隙間５１に水分が侵入すると、鋳巣を発生させる原因となるが、上記構成の鋳ばり防止構造５Ａによれば、離型剤や水分が隙間５１に侵入するのを防止できるので、鋳巣の発生を防止できる。   Furthermore, after die casting is performed once using the mold 10 provided with the cast-in prevention structure 5A having the above-described configuration, the gap 51 is closed with the strips 81 as shown in FIG. Therefore, in the next casting operation, moisture such as a mold release agent and cooling water does not enter the gap 51. If moisture enters the gap 51, it will cause a cast hole. However, according to the cast-in preventing structure 5A having the above configuration, the mold release agent and moisture can be prevented from entering the gap 51. Occurrence can be prevented.

なお、上記構成の鋳ばり防止構造５Ａでは、空間５２を、本体１２の合わせ面１２１に形成しているが、その代わりに、図６に示すように、コアーピン１１の合わせ面１１１に形成してもよい。これによっても、上記構成の鋳ばり防止構造５Ａと同様の作用効果を発揮できる。   In the cast-in preventing structure 5A having the above configuration, the space 52 is formed on the mating surface 121 of the main body 12, but instead, it is formed on the mating surface 111 of the core pin 11 as shown in FIG. Also good. Also by this, the same effect as the cast-flash prevention structure 5A of the said structure can be exhibited.

［第２実施形態］
図７は、本発明の鋳ばり防止構造を採用したダイカスト鋳造用金型の別の例を示す縦断面図である。図７において、図１の構成部材と同一の又は相当する部材には、同じ符号を付している。この金型１０は、可動型１と固定型２とからなっており、固定型２には、射出部９が設けられている。可動型１は、コアーピン１１と、第１本体１３と、第２本体１４と、第３本体１５とを、組み合わせて構成されており、固定型２は、第１本体２１と、第２本体２２とを、組み合わせて構成されている。すなわち、可動型１も固定型２も、それぞれ、複数個の部品を組み合わせて構成されている。 [Second Embodiment]
FIG. 7 is a longitudinal cross-sectional view showing another example of a die-casting die using the cast-in prevention structure of the present invention. In FIG. 7, the same or corresponding members as those in FIG. 1 are denoted by the same reference numerals. The mold 10 includes a movable mold 1 and a fixed mold 2, and the fixed mold 2 is provided with an injection unit 9. The movable mold 1 is configured by combining a core pin 11, a first main body 13, a second main body 14, and a third main body 15, and the fixed mold 2 is configured by a first main body 21 and a second main body 22. Are combined. That is, each of the movable mold 1 and the fixed mold 2 is configured by combining a plurality of parts.

そして、コアーピン１１と第２本体１４との間には、第１実施形態と同じ鋳ばり防止構造５Ａが設けられている。すなわち、鋳ばり防止構造５Ａは、隙間５１と空間５２とによって構成されている。隙間５１は、合わせ面１１１と合わせ面１４１との間に存在しており、且つ、可動型１の内面１０１に開いており、且つ、内面１０１の近傍に位置している。隙間５１は、溶湯が侵入可能な大きさを有している。空間５２は、隙間５１に連通しており、且つ、合わせ面１４１に形成されている。空間５２は、溶湯を貯留可能な大きさを有している。なお、空間５２は、コアーピン１１を円周方向に囲んで設けられている。   And between the core pin 11 and the 2nd main body 14, the same flash prevention structure 5A as 1st Embodiment is provided. That is, the flashing prevention structure 5 </ b> A is configured by the gap 51 and the space 52. The gap 51 exists between the mating surface 111 and the mating surface 141, is open to the inner surface 101 of the movable mold 1, and is positioned in the vicinity of the inner surface 101. The gap 51 has a size that allows the molten metal to enter. The space 52 communicates with the gap 51 and is formed on the mating surface 141. The space 52 has a size capable of storing molten metal. The space 52 is provided so as to surround the core pin 11 in the circumferential direction.

更に、本実施形態では、隣接する本体の間に、それぞれ、鋳ばり防止構造５Ｂが設けられている。   Furthermore, in this embodiment, the flash prevention structure 5B is provided between the adjacent main bodies.

図８は、図７の部分拡大図である。第１本体１３と第２本体１４との間の鋳ばり防止構造５Ｂは、鋳ばり防止構造５Ａと同様に、隙間５３と空間５４とによって構成されている。隙間５３は、合わせ面１３１と合わせ面１４２との間に存在しており、且つ、可動型１の内面１０１に開いており、且つ、内面１０１の近傍に位置している。隙間５３は、溶湯が侵入可能な大きさを有している。空間５４は、隙間５３に連通しており、且つ、合わせ面１３１に形成されている。空間５４は、溶湯を貯留可能な大きさを有している。   FIG. 8 is a partially enlarged view of FIG. The cast-in preventing structure 5B between the first main body 13 and the second main body 14 is configured by a gap 53 and a space 54, like the cast-in preventing structure 5A. The gap 53 exists between the mating surface 131 and the mating surface 142, is open to the inner surface 101 of the movable mold 1, and is positioned in the vicinity of the inner surface 101. The gap 53 has a size that allows the molten metal to enter. The space 54 communicates with the gap 53 and is formed on the mating surface 131. The space 54 has a size capable of storing molten metal.

第２本体１４と第３本体１５との間の鋳ばり防止構造５Ｂ、及び、固定型２の第１本体２１と第２本体２２との間の鋳ばり防止構造５Ｂも、第１本体１３と第２本体１４との間の鋳ばり防止構造５Ｂと同じ構成を有しており、隙間５３と空間５４とによって構成されている。なお、第２本体１４と第３本体１５との間の鋳ばり防止構造５Ｂでは、空間５４が第２本体１４の合わせ面１４３に形成されている。また、固定型２の第１本体２１と第２本体２２との間の鋳ばり防止構造５Ｂでは、空間５４が第１本体２１の合わせ面２１１に形成されている。   The casting prevention structure 5B between the second body 14 and the third body 15 and the casting prevention structure 5B between the first body 21 and the second body 22 of the fixed mold 2 are also It has the same configuration as the flash prevention structure 5 </ b> B between the second main body 14, and is configured by a gap 53 and a space 54. In the cast-in prevention structure 5 </ b> B between the second main body 14 and the third main body 15, a space 54 is formed on the mating surface 143 of the second main body 14. Further, in the cast-in preventing structure 5 </ b> B between the first main body 21 and the second main body 22 of the fixed mold 2, a space 54 is formed on the mating surface 211 of the first main body 21.

上記構成の鋳ばり防止構造５Ａ、５Ｂを備えた金型１０を用いてダイカスト鋳造を行うと、射出部９から金型１０のキャビティ１００内に注入された溶湯８は、図９に示すように、キャビティ１００内に充填されていくとともに、鋳ばり防止構造５Ａの隙間５１にも流入して空間５２に貯まり、また、各鋳ばり防止構造５Ｂの隙間５３にも流入して空間５４に貯まる。そして、溶湯８が凝固した後に、金型１０を開いて鋳造製品４を取り出す際において、鋳ばり防止構造５Ａでは、隙間５１にて凝固した溶湯の細片８１に空間５２にて凝固した溶湯の塊８２が連結しているため、細片８１と塊８２とが、一体物として、可動型１にそのまま残り、鋳ばり防止構造５Ｂでは、隙間５３にて凝固した溶湯の細片８３に空間５４にて凝固した溶湯の塊８４が連結しているため、細片８３と塊８４とが、一体物として、可動型１及び固定型２にそのまま残る。それ故、図５に示すような、鋳ばり４１、４２、４３、４４（図１５）ができていない鋳造製品４が得られる。   When die casting is performed using the mold 10 provided with the above-described structure for preventing cast-off 5A, 5B, the molten metal 8 injected from the injection portion 9 into the cavity 100 of the mold 10 is as shown in FIG. In addition to being filled in the cavity 100, it flows into the gap 51 of the flash prevention structure 5 </ b> A and is stored in the space 52, and also flows into the gap 53 of each flash prevention structure 5 </ b> B and is stored in the space 54. Then, when the molten metal 8 is solidified, when the mold 10 is opened and the cast product 4 is taken out, the cast-flash prevention structure 5A has the molten metal solidified in the space 52 in the molten metal strip 81 solidified in the gap 51. Since the lump 82 is connected, the strip 81 and the lump 82 remain as they are in the movable mold 1 as they are, and in the cast-in prevention structure 5B, a space 54 is formed in the molten strip 83 solidified in the gap 53. Since the molten metal mass 84 solidified in (5) is connected, the strip 83 and the mass 84 remain as they are in the movable mold 1 and the fixed mold 2 as they are. Therefore, a cast product 4 as shown in FIG. 5 in which the cast beads 41, 42, 43, 44 (FIG. 15) are not obtained is obtained.

したがって、上記構成の鋳ばり防止構造５Ａ、５Ｂによれば、鋳ばりの無い鋳造製品４を得ることができるので、鋳造作業において、鋳ばりを除去するための仕上げ作業を不要にでき、したがって、鋳造作業の生産性を向上できる。   Therefore, according to the cast-in preventing structure 5A, 5B having the above-described structure, the cast product 4 without cast-in can be obtained, so that a finishing operation for removing the cast-in can be eliminated in the casting operation. The productivity of casting work can be improved.

更に、上記構成の鋳ばり防止構造５Ａ、５Ｂを備えた金型１０を用いて、ダイカスト鋳造を一度行った後においては、図１０に示すように、隙間５１が細片８１で塞がれており、また、隙間５３が細片８３で塞がれている。それ故、次の鋳造作業において、離型剤や、冷却水等の水分が、隙間５１、５３に侵入することはない。隙間５１、５３に水分が侵入すると、鋳巣を発生させる原因となるが、上記構成の鋳ばり防止構造５Ａ、５Ｂによれば、離型剤や水分が隙間５１、５３に侵入するのを防止できるので、鋳巣の発生を防止できる。   Further, after die casting is performed once using the mold 10 provided with the flash prevention structures 5A and 5B having the above-described structure, the gap 51 is closed with the strips 81 as shown in FIG. In addition, the gap 53 is closed by the thin piece 83. Therefore, in the next casting operation, moisture such as a mold release agent and cooling water does not enter the gaps 51 and 53. If moisture enters the gaps 51 and 53, it will cause a cast hole, but according to the cast-in prevention structures 5A and 5B having the above-described configuration, the release agent and moisture are prevented from entering the gaps 51 and 53. As a result, it is possible to prevent the formation of cast holes.

なお、上記構成の鋳ばり防止構造５Ａでは、空間５２を、本体１４の合わせ面１４１に形成しているが、その代わりに、図８に一点鎖線で示すように、コアーピン１１の合わせ面１１１に形成してもよい。これによっても、上記構成の鋳ばり防止構造５Ａと同様の作用効果を発揮できる。   In addition, in the cast-in prevention structure 5A having the above-described structure, the space 52 is formed on the mating surface 141 of the main body 14, but instead, on the mating surface 111 of the core pin 11 as shown by a one-dot chain line in FIG. It may be formed. Also by this, the same effect as the cast-flash prevention structure 5A of the said structure can be exhibited.

また、第１本体１３と第２本体１４との間の上記構成の鋳ばり防止構造５Ｂでは、空間５４を、第１本体１３の合わせ面１３１に形成しているが、その代わりに、図８に一点鎖線で示すように、第２本体１４の合わせ面１４２に形成してもよい。また、第２本体１４と第３本体１５との間の上記構成の鋳ばり防止構造５Ｂでは、空間５４を、第２本体１４の合わせ面１４３に形成しているが、その代わりに、図８に一点鎖線で示すように、第３本体１５の合わせ面１５１に形成してもよい。また、固定型１２の第１本体２１と第２本体２２との間の上記構成の鋳ばり防止構造５Ｂでは、空間５４を、第１本体２１の合わせ面２１１に形成しているが、その代わりに、図８に一点鎖線で示すように、第２本体２２の合わせ面２２１に形成してもよい。これらによっても、上記構成の鋳ばり防止構造５Ｂと同様の作用効果を発揮できる。   Further, in the cast-in preventing structure 5B having the above-described configuration between the first main body 13 and the second main body 14, the space 54 is formed on the mating surface 131 of the first main body 13, but instead, FIG. 2 may be formed on the mating surface 142 of the second main body 14. Further, in the cast-in prevention structure 5B having the above-described configuration between the second main body 14 and the third main body 15, the space 54 is formed on the mating surface 143 of the second main body 14, but instead, FIG. May be formed on the mating surface 151 of the third main body 15 as indicated by a one-dot chain line. In addition, in the cast-in prevention structure 5B configured as described above between the first main body 21 and the second main body 22 of the fixed mold 12, the space 54 is formed on the mating surface 211 of the first main body 21, but instead. In addition, as shown by the alternate long and short dash line in FIG. 8, the second main body 22 may be formed on the mating surface 221. Also by these, the effect similar to the flashing prevention structure 5B of the said structure can be exhibited.

本発明は、鋳ばりを除去するための仕上げ作業を不要にでき、また、鋳巣等の鋳造欠陥の発生を防止できるので、産業上の利用価値が大である。   Since the present invention can eliminate the need for finishing work for removing the flash, and can prevent the occurrence of casting defects such as cast holes, it has great industrial utility value.

本発明の第１実施形態の鋳ばり防止構造を採用したダイカスト鋳造用金型を示す縦断面図である。It is a longitudinal cross-sectional view which shows the die-casting die which employ | adopted the flash prevention structure of 1st Embodiment of this invention. 図１の一部拡大図である。FIG. 2 is a partially enlarged view of FIG. 1. 第１実施形態の鋳ばり防止構造の作動工程を示す一部拡大図である。It is a partially expanded view which shows the operation | movement process of the cast-flash prevention structure of 1st Embodiment. 図３に続く作動工程を示す一部拡大図である。FIG. 4 is a partially enlarged view showing an operation process following FIG. 3. 第１及び第２実施形態の金型によって得られる鋳造製品を示す縦断面図である。It is a longitudinal cross-sectional view which shows the cast product obtained by the metal mold | die of 1st and 2nd embodiment. 第１実施形態の鋳ばり防止構造の別の例を示す一部拡大図である。It is a partially expanded view which shows another example of the cast-in prevention structure of 1st Embodiment. 本発明の第２実施形態の鋳ばり防止構造を採用したダイカスト鋳造用金型を示す縦断面図である。It is a longitudinal cross-sectional view which shows the die-casting die which employ | adopted the flash prevention structure of 2nd Embodiment of this invention. 図７の一部拡大図である。FIG. 8 is a partially enlarged view of FIG. 7. 第２実施形態の鋳ばり防止構造の作動工程を示す一部拡大図である。It is a partially expanded view which shows the action | operation process of the cast-flash prevention structure of 2nd Embodiment. 図９に続く作動工程を示す一部拡大図である。FIG. 10 is a partially enlarged view showing an operation process following FIG. 9. 従来のダイカスト鋳造用金型の一例を示す縦断面図である。It is a longitudinal cross-sectional view which shows an example of the conventional die-casting metal mold | die. 図１１の一部拡大図である。FIG. 12 is a partially enlarged view of FIG. 11. 図１１の金型によって得られる鋳造製品を示す縦断面図である。It is a longitudinal cross-sectional view which shows the cast product obtained with the metal mold | die of FIG. 従来のダイカスト鋳造用金型の別の例を示す縦断面図である。It is a longitudinal cross-sectional view which shows another example of the conventional die-casting metal mold | die. 図１４の金型によって得られる鋳造製品を示す縦断面図である。It is a longitudinal cross-sectional view which shows the casting product obtained with the metal mold | die of FIG.

符号の説明Explanation of symbols

１０ 金型 １１１、１２１、１３１、１４１、１４２、１４３、１５１、２１１、２２１ 合わせ面 ５Ａ、５Ｂ 鋳ばり防止構造、５１、５３ 隙間 ５２、５４ 空間   10 Molds 111, 121, 131, 141, 142, 143, 151, 211, 221 Matching surfaces 5A, 5B Casting prevention structure, 51, 53 Gap 52, 54 Space

Claims (1)

複数個の部品が組み合わされて構成された鋳造用金型において、隣接する部品間に設けられた鋳ばり防止構造であって、
隣接する部品の合わせ面同士の間に存在しており、且つ、金型内面に開いており、且つ、金型内面の近傍に位置している、溶湯が侵入可能な隙間と、
上記隙間に連通しており、且つ、隣接する部品の合わせ面同士の少なくとも一方の合わせ面に形成されている、溶湯貯留用空間と、によって構成されていることを特徴とする金型の鋳ばり防止構造。 In a casting mold configured by combining a plurality of parts, a cast-off prevention structure provided between adjacent parts,
A gap that exists between the mating surfaces of adjacent parts, is open on the inner surface of the mold, and is located in the vicinity of the inner surface of the mold;
A molten metal storage space formed by at least one mating surface of the mating surfaces of adjacent parts communicating with the gap and having a molten metal storage space. Prevention structure.
JP2006293675A 2006-10-30 2006-10-30 Structure for preventing casting fin in die Pending JP2008110356A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150095518A (en) * 2014-02-13 2015-08-21 (주)한국알앤드디 Device and method of metallic mold
KR101746520B1 (en) * 2015-10-20 2017-06-14 (주)삼기오토모티브 Mold for producing a casting with penetrating passage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6068150A (en) * 1983-09-22 1985-04-18 Toyota Motor Corp Die structure
JPS6415651U (en) * 1987-07-10 1989-01-26
JPH09277012A (en) * 1996-04-12 1997-10-28 Ahresty Corp Metallic mold device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6068150A (en) * 1983-09-22 1985-04-18 Toyota Motor Corp Die structure
JPS6415651U (en) * 1987-07-10 1989-01-26
JPH09277012A (en) * 1996-04-12 1997-10-28 Ahresty Corp Metallic mold device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150095518A (en) * 2014-02-13 2015-08-21 (주)한국알앤드디 Device and method of metallic mold
KR102047763B1 (en) * 2014-02-13 2019-11-22 (주)한국알앤드디 Device and method of metallic mold
KR101746520B1 (en) * 2015-10-20 2017-06-14 (주)삼기오토모티브 Mold for producing a casting with penetrating passage

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