JP2016147407A - Metal mold device production method - Google Patents

Metal mold device production method Download PDF

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JP2016147407A
JP2016147407A JP2015024724A JP2015024724A JP2016147407A JP 2016147407 A JP2016147407 A JP 2016147407A JP 2015024724 A JP2015024724 A JP 2015024724A JP 2015024724 A JP2015024724 A JP 2015024724A JP 2016147407 A JP2016147407 A JP 2016147407A
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mold
cavity
metal mold
temperature
opposite
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JP6512508B2 (en
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仁 藤吉
Hitoshi Fujiyoshi
仁 藤吉
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パナソニックIpマネジメント株式会社
Panasonic Ip Management Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a production method of a metal mold device comprising a temperature adjustment pipe, capable of suppressing deformation of the metal mold, improving and maintaining metal mold accuracy, and preventing strain or unevenness on a plated layer formed on a cavity side surface.SOLUTION: The production method of a metal mold device comprising a cavity between an upper metal mold 2a and a lower metal mold 2b formed so as to adjust temperature freely, comprises: a first step for depositing temperature adjustment pipes 3 for passing a fluid for temperature adjustment for adjusting temperature on the upper metal mold and lower metal mold, on a surface 22 opposite to the cavity, on the upper and lower metal molds; a step for coating with a coating member 4, the surface opposite to the cavity, on the upper and lower metal molds, so as not to expose the deposited temperature adjustment pipes 3 after the first step; a third step for performing plating processing to the cavity side face in a state of coating the surface opposite to the cavity with the coating member, on the upper and lower metal molds; and a fourth step for removing the coating member after the third step.SELECTED DRAWING: Figure 1

Description

本発明は、金型装置の製造方法に関する。   The present invention relates to a method for manufacturing a mold apparatus.
樹脂成形に用いられる金型装置は、通常、上金型と下金型とによってこれらの間に所定の形状、構造の樹脂成形品の成形を可能とするためのキャビティを備えた構造を有している。   A mold apparatus used for resin molding usually has a structure having a cavity for enabling molding of a resin molded product having a predetermined shape and structure between an upper mold and a lower mold. ing.
従来より、この金型装置については様々な観点からの工夫、改善が施されてきている。例えば、キャビティ内への樹脂の流入やその硬化を制御するための加熱温度の調整手段についての工夫がある。また、樹脂成形品の表面平滑性の向上や樹脂に接する金型表面の劣化、損傷の抑制のための金型の表面処理についての工夫がある。   Conventionally, the mold apparatus has been devised and improved from various viewpoints. For example, there is a device for adjusting the heating temperature for controlling the inflow of the resin into the cavity and its curing. Further, there are contrivances regarding the surface treatment of the mold for improving the surface smoothness of the resin molded product, the deterioration of the mold surface in contact with the resin, and the prevention of damage.
具体的には、上金型と下金型それぞれのキャビティ側とは反対側の面に、温度調整用の流体を通過させるための温度調整用配管を溶着することが提案されている(例えば、特許文献1を参照)。   Specifically, it has been proposed to weld a temperature adjustment pipe for allowing a temperature adjustment fluid to pass through on the surface opposite to the cavity side of each of the upper mold and the lower mold (for example, (See Patent Document 1).
また、近年では、キャビティ側の面の耐久性を高めるため、そして、樹脂成形品の意匠面を鏡面に仕上げるために、キャビティ側の面にメッキ処理を施してメッキ層を形成することが行われている。   Further, in recent years, in order to improve the durability of the cavity side surface and to finish the design surface of the resin molded product to a mirror surface, a plating layer is formed by plating the cavity side surface. ing.
図5には、このような工夫、改善が施された従来の金型装置の製造方法の概略断面工程図を示している。この方法では、まず、金型2の材料である鋼材1を金型2のキャビティ側の面21と、キャビティとは反対側の面22とが所定の設計寸法となるまで削り込み、両面側に最終仕上げの加工を施して金型2を作製する(工程S3−1)。   FIG. 5 shows a schematic cross-sectional process diagram of a conventional method of manufacturing a mold apparatus in which such improvements and improvements have been made. In this method, first, the steel material 1 which is the material of the mold 2 is shaved until the cavity-side surface 21 and the cavity-side surface 22 of the mold 2 have a predetermined design dimension. A final finishing process is performed to manufacture the mold 2 (step S3-1).
次に、金型2をメッキ浴5のメッキ液51に浸漬してメッキ処理を施し、金型2の表面にメッキ層6を形成する(工程S3−2)。次に、キャビティ側の面21とは反対側の面22に温度調整用の流体を通過させるための温度調整用配管3を溶着する(工程S3−3)。そして、金型2に型枠部材7等を取り付けて金型装置を完成させる(工程S3−4)。   Next, the mold 2 is immersed in the plating solution 51 of the plating bath 5 to perform plating, and the plating layer 6 is formed on the surface of the mold 2 (step S3-2). Next, the temperature adjustment pipe 3 for allowing the temperature adjustment fluid to pass through the surface 22 opposite to the cavity-side surface 21 is welded (step S3-3). And the mold member 7 etc. are attached to the metal mold | die 2, and a metal mold | die apparatus is completed (process S3-4).
特開平2−76709号公報JP-A-2-76709
しかしながら、前記の従来方法においては、キャビティ側の面21の最終仕上げ工程(工程S3−1)やメッキ処理工程(工程S3−2)の後に、キャビティとは反対側の面22に温度調整用配管3の溶着工程(工程S3−3)を行っている。そのため、溶着の高熱により金型2全体に予期しない変形が生じる場合があった。そして、この金型2の予期しない変形により、成形した樹脂成形品に設計通りの寸法、精度がでないという問題があった。   However, in the above-described conventional method, after the final finishing step (step S3-1) and the plating step (step S3-2) of the cavity-side surface 21, the temperature adjustment pipe is provided on the surface 22 opposite to the cavity. 3 welding process (process S3-3) is performed. Therefore, unexpected deformation may occur in the entire mold 2 due to high heat of welding. Then, due to unexpected deformation of the mold 2, there is a problem that the molded resin molded product does not have the dimensions and accuracy as designed.
また、メッキ処理の工程(工程S3−2)後に温度調整用配管3の溶着工程(工程S3−3)を行うため、メッキ層6が局所的に高温となり、メッキ層6に歪み、ムラ等が発生し、図6に示すように、成形した樹脂成形品10の意匠面に歪み11やムラ12が表出する場合があった。   Moreover, since the welding step (step S3-3) of the temperature adjusting pipe 3 is performed after the plating treatment step (step S3-2), the plating layer 6 becomes locally high in temperature, and the plating layer 6 is distorted and uneven. As shown in FIG. 6, distortion 11 and unevenness 12 sometimes appeared on the design surface of the molded resin molded product 10.
このような、金型2の変形やメッキ層6の歪みやムラの発生を抑制するためには、温度調整用配管3の溶着時に加熱温度を十分に考慮して溶着作業をする必要がある。しかしながら、これらの溶着作業は人手によるため、高品質の金型装置を安定的に製造するのが非常に困難であった。   In order to suppress the deformation of the mold 2 and the distortion and unevenness of the plating layer 6, it is necessary to perform the welding operation in consideration of the heating temperature when welding the temperature adjusting pipe 3. However, since these welding operations are performed manually, it is very difficult to stably manufacture a high-quality mold apparatus.
本発明は、上記従来の問題点に鑑みてなされたものであり、温度調整用配管を備える金型装置において、金型の変形を抑え、金型精度を維持向上させ、キャビティ側の面に形成したメッキ層に歪みやムラが発生しないようにする金型装置の製造方法を提供することを課題とする。   The present invention has been made in view of the above-described conventional problems, and in a mold apparatus provided with a temperature adjusting pipe, the deformation of the mold is suppressed, the mold accuracy is maintained and improved, and the cavity side surface is formed. It is an object of the present invention to provide a method of manufacturing a mold apparatus that prevents the plated layer from being distorted or uneven.
本発明は、上記の課題を解決するために、以下のことを特徴としている。   The present invention is characterized by the following in order to solve the above problems.
温度調整可能に形成された上金型と下金型の間にキャビティを備えた金型装置の製造方法であって、前記上金型および前記下金型において、前記キャビティとは反対側の面に、前記上金型および前記下金型の温度を調整するための温度調整用の流体を通過させる温度調整用配管を溶着する第1工程と、この第1工程の後に、溶着した前記温度調整用配管が露出しないように、前記上金型および前記下金型において、前記キャビティとは反対側の面を被覆部材で被覆する工程と、前記上金型および前記下金型において、前記キャビティとは反対側の面を前記被覆部材で被覆した状態で前記キャビティ側の面にメッキ処理を施す第3工程と、この第3工程の後に、前記被覆部材を取り外す第4工程とを備えることを特徴とする。   A method of manufacturing a mold apparatus having a cavity between an upper mold and a lower mold formed so as to be temperature-adjustable, the surface of the upper mold and the lower mold opposite to the cavity A first step of welding a temperature adjusting pipe for passing a temperature adjusting fluid for adjusting the temperature of the upper die and the lower die, and the temperature adjustment welded after the first step. Covering the surface opposite to the cavity in the upper mold and the lower mold with a covering member so as not to expose the piping for use, and the cavity in the upper mold and the lower mold Comprises a third step of plating the cavity side surface in a state where the opposite surface is covered with the covering member, and a fourth step of removing the covering member after the third step. And
本発明によれば、温度調整用配管を備える金型装置において、金型の変形を抑え、金型精度を維持向上させ、キャビティ側の面に形成したメッキ層に歪みやムラが発生しないようにすることが可能な金型装置の製造方法が提供される。   According to the present invention, in a mold apparatus including a temperature adjusting pipe, the deformation of the mold is suppressed, the mold accuracy is maintained and improved, and the plating layer formed on the cavity side surface is not distorted or uneven. A method for manufacturing a mold apparatus is provided.
本発明の金型装置の製造方法の一実施形態(第1実施形態)を示す概略断面工程図である。It is a schematic sectional process drawing which shows one Embodiment (1st Embodiment) of the manufacturing method of the metal mold | die apparatus of this invention. (a)は、被覆部材を装着した上金型の概略断面図であり、(b)は、下金型の概略断面図である。(A) is a schematic sectional drawing of the upper metal mold | die equipped with the coating | coated member, (b) is a schematic sectional drawing of a lower metal mold | die. 金型と被覆部材の接合部の部分拡大断面図である。It is a partial expanded sectional view of the joined part of a metallic mold and a covering member. 本発明の金型装置の製造方法の第2実施形態を示す概略断面工程図である。It is a schematic sectional process drawing which shows 2nd Embodiment of the manufacturing method of the metal mold | die apparatus of this invention. 従来の金型装置の製造方法を示す概略断面工程図である。It is a schematic sectional process drawing which shows the manufacturing method of the conventional metal mold | die apparatus. 樹脂成形品の意匠面に歪みやムラが表出した状態を示す概略図である。It is the schematic which shows the state which distortion and the nonuniformity appeared on the design surface of the resin molded product.
以下、発明を実施するための形態についてさらに詳細に説明する。   Hereinafter, modes for carrying out the invention will be described in more detail.
金型装置の製造方法は、温度調整可能に形成された上金型と下金型の間にキャビティを備えた金型装置を製造する。この金型装置の製造方法は、少なくとも、以下の第1工程から第4工程を備えている。
(1)第1工程:キャビティとは反対側の面に、金型の温度を調整するための温度調整用の流体を通過させる温度調整用配管を溶着する工程。
(2)第2工程:溶着した温度調整用配管が露出しないように、キャビティとは反対側の面を被覆部材で被覆する工程。
(3)第3工程:キャビティとは反対側の面を被覆部材で被覆した状態で、キャビティ側の面にメッキ処理を施す工程。
(4)第4工程:メッキ処理を施す工程の後に被覆部材を取り外す工程。
The mold apparatus manufacturing method manufactures a mold apparatus having a cavity between an upper mold and a lower mold formed so as to be adjustable in temperature. The method for manufacturing the mold apparatus includes at least the following first to fourth steps.
(1) 1st process: The process of welding the temperature adjustment piping which lets the fluid for temperature adjustment for adjusting the temperature of a metal mold | die pass to the surface on the opposite side to a cavity.
(2) 2nd process: The process of coat | covering the surface on the opposite side to a cavity with a coating | coated member so that the welded pipe for temperature control may not be exposed.
(3) Third step: A step of plating the surface on the cavity side with the surface opposite to the cavity covered with the covering member.
(4) Fourth step: A step of removing the covering member after the step of performing the plating treatment.
図1に、本発明の金型装置の製造方法の一実施形態(第1実施形態)の概略断面工程図を示す。以下、図1の各工程に沿って詳細に説明する。
(工程S1−1:準備工程)
まず、従来と同様に、後に上金型2aおよび下金型2bとして用いる金型2の材料である鋼材1を金型2のキャビティ側の面(以下、単に型面と略称する)21と、キャビティとは反対側の面(以下、単に裏面と略称する)22から所定の設計肉厚まで削り込む。そして、型面および裏面22の両面とも最終仕上げまでの加工を行い、金型2を作製する。金型2の材質やその肉厚は特に制限はなく、金型2の目的、用途に応じた形状や大きさ等を考慮して適宜決定することができるが、通常、材質としては、例えば、炭素工具鋼等の工具鋼等が、また、肉厚としては3〜50mm程度が考慮される。
FIG. 1 shows a schematic cross-sectional process diagram of an embodiment (first embodiment) of a method for manufacturing a mold apparatus according to the present invention. Hereinafter, it demonstrates in detail along each process of FIG.
(Step S1-1: Preparation Step)
First, as in the prior art, a steel material 1 that is a material of a mold 2 to be used later as an upper mold 2a and a lower mold 2b is a cavity-side surface (hereinafter simply referred to as a mold surface) 21 of the mold 2; A predetermined design thickness is cut from a surface 22 (hereinafter simply referred to as a back surface) opposite to the cavity. Then, both the mold surface and the back surface 22 are processed to the final finish, and the mold 2 is manufactured. The material and thickness of the mold 2 are not particularly limited and can be appropriately determined in consideration of the shape and size according to the purpose and application of the mold 2. A tool steel such as carbon tool steel or the like, and a thickness of about 3 to 50 mm is considered.
なお、本発明において金型の最終仕上げとは、樹脂成形品を鏡面仕上げする場合には鏡面加工し、樹脂成形品にシボを形成する場合には、シボに対応する凹凸を形成すること等の加工を意味する。
(工程S1−2:第1工程)
次に、金型2の裏面22に温度調整用の流体を通過させるための温度調整用配管3を溶着する。温度調整用配管3の材質、その径や長さ、配置設計等は、金型2が均一に所定の設定温度に加熱されれば特に制限はなく、適宜決定することができる。
In the present invention, the final finish of the mold is a mirror finish when the resin molded product is mirror finished, and when the texture is formed on the resin molded product, an unevenness corresponding to the texture is formed. Means processing.
(Process S1-2: 1st process)
Next, the temperature adjustment pipe 3 for allowing the temperature adjustment fluid to pass through the back surface 22 of the mold 2 is welded. The material, diameter, length, layout design, and the like of the temperature adjusting pipe 3 are not particularly limited as long as the mold 2 is uniformly heated to a predetermined set temperature, and can be determined as appropriate.
また、温度調整用配管3の溶着方法は、金型2の裏面22に温度調整用配管3が強固に固着される溶着方法であれば特に制限はなく、例えば、溶接、ロウ付け、ハンダ付け等を適用することができる。
(工程S1−3:第2工程)
次に、溶着した温度調整用配管3が露出しないように、金型2の裏面22を被覆するように被覆部材4を装着する。図2には(a)上金型2aと(b)下金型2bの各々の場合について示している。
The method for welding the temperature adjusting pipe 3 is not particularly limited as long as the temperature adjusting pipe 3 is firmly fixed to the back surface 22 of the mold 2. For example, welding, brazing, soldering, etc. Can be applied.
(Step S1-3: Second step)
Next, the covering member 4 is mounted so as to cover the back surface 22 of the mold 2 so that the welded temperature adjusting pipe 3 is not exposed. FIG. 2 shows the cases of (a) the upper mold 2a and (b) the lower mold 2b.
被覆部材4は、次の第3工程(工程S1−4)において、メッキ液51が温度調整用配管3に付着しないようにするために装着するものである。被覆部材4の材質は、メッキ液51により浸食されないものであれば特に制限はない。このような材質としては、例えば、樹脂成形品や金属成形品の表面に樹脂被覆を形成したもの等を挙げることができる。
(工程S1−4:第3工程)
次に、被覆部材4を装着した金型2の型面21をメッキ浴5のメッキ液51に浸漬してメッキ処理を施し、型面21にメッキ層6を形成する。メッキ処理の種類は特に制限されないが、例えば、クロムメッキ、ニッケルメッキ等のメッキ処理を適用することができる。これらの中でも、特に、硬質クロムメッキを好適に適用することができる。
The covering member 4 is mounted to prevent the plating solution 51 from adhering to the temperature adjusting pipe 3 in the next third step (step S1-4). The material of the covering member 4 is not particularly limited as long as it is not eroded by the plating solution 51. Examples of such a material include those in which a resin coating is formed on the surface of a resin molded product or a metal molded product.
(Step S1-4: Third step)
Next, the mold surface 21 of the mold 2 on which the covering member 4 is mounted is immersed in a plating solution 51 of the plating bath 5 to perform a plating process, and the plating layer 6 is formed on the mold surface 21. The type of the plating process is not particularly limited, and for example, a plating process such as chrome plating or nickel plating can be applied. Among these, hard chrome plating can be particularly suitably applied.
なお、温度調整用配管3が銅製の場合、温度調整用配管3にメッキ液51が付着すると、メッキ液51の種類によってはその付着部分が侵食する場合がある。また、温度調整用配管3の溶着時に使用したフラックス等がメッキ液51中に異物として浮遊し、これらがメッキ処理時に型面21に付着してメッキ層6にピンホール等を発生させることがある。そのため、メッキ処理工程においては、温度調整用配管3にメッキ液51を付着させないことが重要となる。   When the temperature adjustment pipe 3 is made of copper and the plating solution 51 adheres to the temperature adjustment pipe 3, the attached portion may corrode depending on the type of the plating solution 51. Further, the flux used at the time of welding the temperature adjusting pipe 3 may float as foreign matter in the plating solution 51, and these may adhere to the mold surface 21 during the plating process and cause a pinhole or the like in the plating layer 6. . Therefore, in the plating process, it is important that the plating solution 51 is not attached to the temperature adjusting pipe 3.
その対策として、金型2の縁部と被覆部材4の接合部に防水機構を設けるのが望ましい。図3に、金型2と被覆部材4の接合部の部分拡大断面図を示す。   As a countermeasure, it is desirable to provide a waterproof mechanism at the joint between the edge of the mold 2 and the covering member 4. FIG. 3 shows a partially enlarged cross-sectional view of the joint portion between the mold 2 and the covering member 4.
図3に示す接合部では、金型2のキャビティの縁部に沿って二重のパッキン9からなる防水機構を設け、ボルト8により強固に接合してメッキ液51の侵入を防止している。
(工程S1−5:第4工程)
上記第3工程が完了した段階で、金型2から被覆部材4を取り外す。
(工程S1−6:第5工程)
次に、被覆部材4を取り外した金型2に、型枠部材7等を取り付けることにより金型装置を完成させる。
In the joint portion shown in FIG. 3, a waterproof mechanism comprising a double packing 9 is provided along the edge of the cavity of the mold 2, and the joint is firmly joined by the bolts 8 to prevent the plating solution 51 from entering.
(Step S1-5: Fourth step)
When the third step is completed, the covering member 4 is removed from the mold 2.
(Process S1-6: 5th process)
Next, the mold apparatus is completed by attaching the mold member 7 or the like to the mold 2 from which the covering member 4 has been removed.
第1工程(工程S1−2)、第2工程(工程S1−3)、第3工程(工程S1−4)、第4工程(工程S1−5)および第5工程(工程S1−6)による金型装置の製造方法によれば、第1工程(工程S1−2)の後に、第3工程(工程S1−4)を行うので、形成したメッキ層6に局所的に熱が加わることがなくなる。このため、型面21のメッキ層6に発生する歪みやムラ等を抑制することができる。すなわち、製造した金型装置により成形した樹脂成形品の意匠面に発生する歪みやムラ等の発生による不良を防止することが可能となる。   By 1st process (process S1-2), 2nd process (process S1-3), 3rd process (process S1-4), 4th process (process S1-5), and 5th process (process S1-6) According to the method for manufacturing a mold apparatus, since the third step (step S1-4) is performed after the first step (step S1-2), heat is not locally applied to the formed plating layer 6. . For this reason, distortion, unevenness, etc. occurring in the plating layer 6 of the mold surface 21 can be suppressed. That is, it is possible to prevent defects due to the occurrence of distortion, unevenness, etc. generated on the design surface of a resin molded product molded by the manufactured mold apparatus.
本発明の金型装置の製造方法は、上記実施形態のほか、第1工程(工程S1−2)の前に、型面21の最終仕上げよりも厚みを残した状態に切削しておき、第1工程(工程S1−2)の後に、型面21の最終仕上げを行うこともできる。図4に、この場合の実施形態(第2実施形態)の概略断面工程図を示す。以下、第2実施形態の金型装置の製造方法について図4の各工程に沿って詳細に説明する。
(工程S2−1:第1予備工程)
まず、金型2の材料である鋼材1の型面21を最終仕上げよりも厚みを残した状態の中間体23まで削り込む。最終仕上げよりも残す厚みは特に限定されるものではないが、通常、最終仕上げよりも0.5mm程度厚く残すことが考慮される。一方、裏面22はこの段階で最終仕上げまで削り込み金型2を作製する。
(工程S2−2:第1工程)
次に、上記第1実施形態と同様に、金型2の裏面22に温度調整用の流体を通過させるための温度調整用配管3を溶着する。
(工程S2−3:第2予備工程)
次に、第1予備工程(工程S2−1)において、最終仕上げよりも厚みを残した状態に加工した中間体23に対して、型面21の最終仕上げまで削り込む。この段階で、金型2の全ての面が最終仕上げまで削り込まれた状態となる。
In addition to the above-described embodiment, the mold device manufacturing method of the present invention is cut into a state in which a thickness is left more than the final finish of the mold surface 21 before the first step (step S1-2). After one step (step S1-2), the final finish of the mold surface 21 can be performed. FIG. 4 shows a schematic sectional process diagram of the embodiment (second embodiment) in this case. Hereinafter, the manufacturing method of the metal mold apparatus of 2nd Embodiment is demonstrated in detail along each process of FIG.
(Step S2-1: First Preliminary Step)
First, the mold surface 21 of the steel material 1 which is the material of the mold 2 is cut to the intermediate body 23 in a state where the thickness is left more than the final finish. The thickness remaining after the final finish is not particularly limited, but it is usually considered that the thickness is about 0.5 mm thicker than the final finish. On the other hand, the back surface 22 is cut into a final finish at this stage to produce the mold 2.
(Process S2-2: 1st process)
Next, as in the first embodiment, the temperature adjusting pipe 3 for allowing the temperature adjusting fluid to pass through the back surface 22 of the mold 2 is welded.
(Step S2-3: Second preliminary step)
Next, in the first preliminary step (step S2-1), the intermediate body 23 processed so as to have a thickness larger than that of the final finish is cut to the final finish of the mold surface 21. At this stage, all the surfaces of the mold 2 are in a state of being cut to the final finish.
その後、作製した金型2に対して、上記第1実施形態と同様に、第2工程(工程S2−4)、第3工程(工程S2−5)、第4工程(工程S2−6)、第5工程(工程S2−7)を行う。   Thereafter, as in the first embodiment, a second step (step S2-4), a third step (step S2-5), a fourth step (step S2-6) are performed on the manufactured mold 2. A 5th process (process S2-7) is performed.
以上の第2実施形態の金型装置の製造方法によれば、型面21の第2予備工程(工程S2−3)を第1工程(工程S2−2)の後に行うことにより、高い寸法精度の金型装置とすることが可能となる。すなわち、温度調整用配管3の溶着時の熱により、金型2の型面21に歪みやムラが発生した場合であっても、型面21の最終仕上げにより歪みやムラが削り取られることになり、高い寸法精度の金型装置とすることができる。   According to the mold apparatus manufacturing method of the second embodiment described above, high dimensional accuracy is achieved by performing the second preliminary step (step S2-3) of the mold surface 21 after the first step (step S2-2). It becomes possible to set it as a metal mold apparatus. That is, even when distortion or unevenness occurs on the mold surface 21 of the mold 2 due to heat generated when the temperature adjusting pipe 3 is welded, the final finishing of the mold surface 21 causes the distortion or unevenness to be removed. A mold apparatus with high dimensional accuracy can be obtained.
また、第1工程(工程S2−2)の後に、型面21の第2予備工程(工程S2−3)を行い、さらに、型面21に対して第3工程(工程S2−5)を行うため、型面21のメッキ層6に歪みやムラ等が発生することがない。すなわち、成形した樹脂成形品の意匠面に発生する歪みやムラ等の不良を防止することが可能となる。   Further, after the first step (step S2-2), the second preliminary step (step S2-3) of the mold surface 21 is performed, and further, the third step (step S2-5) is performed on the mold surface 21. Therefore, no distortion or unevenness occurs in the plating layer 6 on the mold surface 21. That is, it is possible to prevent defects such as distortion and unevenness generated on the design surface of the molded resin molded product.
以上、本発明の金型装置の製造方法を実施形態に基づいて説明したが、本発明の金型装置の製造方法は上記の実施形態に限定されるものではなく、その要旨を逸脱しない範囲内において種々の変更が可能である。   As mentioned above, although the manufacturing method of the metal mold | die apparatus of this invention was demonstrated based on embodiment, the manufacturing method of the metal mold | die apparatus of this invention is not limited to said embodiment, In the range which does not deviate from the summary Various changes can be made.
例えば、第1予備工程(工程S2−1)では、型面21を最終仕上げよりも厚みを残した状態まで切削しているが、意匠面の型面21のみを最終仕上げよりも厚みを残した状態まで切削するようにしてもよい。これにより、少なくとも樹脂成形品における意匠面の歪みやムラの発生を防止することが可能となる。   For example, in the first preliminary step (step S2-1), the mold surface 21 is cut to a state where the thickness is left more than the final finish, but only the mold surface 21 of the design surface is left thicker than the final finish. You may make it cut to a state. As a result, it is possible to prevent at least the distortion and unevenness of the design surface in the resin molded product.
2a 上金型
2b 下金型
21 キャビティ側の面(型面)
22 キャビティとは反対側の面(裏面)
23 最終仕上げよりも厚みを残した状態の中間体
3 温度調整用配管
4 被覆部材
2a Upper mold 2b Lower mold 21 Cavity side surface (mold surface)
22 Side opposite to the cavity (back side)
23 Intermediate with more thickness than the final finish 3 Temperature adjustment piping 4 Covering member

Claims (2)

  1. 温度調整可能に形成された上金型と下金型の間にキャビティを備えた金型装置の製造方法であって、
    前記上金型および前記下金型において、前記キャビティとは反対側の面に、前記上金型および前記下金型の温度を調整するための温度調整用の流体を通過させる温度調整用配管を溶着する第1工程と、
    この第1工程の後に、溶着した前記温度調整用配管が露出しないように、前記上金型および前記下金型において、前記キャビティとは反対側の面を被覆部材で被覆する工程と、
    前記上金型および前記下金型において、前記キャビティとは反対側の面を前記被覆部材で被覆した状態で前記キャビティ側の面にメッキ処理を施す第3工程と、
    この第3工程の後に、前記被覆部材を取り外す第4工程
    とを備えることを特徴とする金型装置の製造方法。
    A method of manufacturing a mold apparatus having a cavity between an upper mold and a lower mold formed so as to be adjustable in temperature,
    In the upper mold and the lower mold, a temperature adjusting pipe for allowing a temperature adjusting fluid for adjusting the temperature of the upper mold and the lower mold to pass through on a surface opposite to the cavity. A first step of welding;
    After the first step, in the upper die and the lower die, the surface opposite to the cavity is covered with a covering member so that the welded temperature adjusting pipe is not exposed,
    A third step in which, in the upper mold and the lower mold, the surface on the cavity side is plated with the surface opposite to the cavity covered with the coating member;
    After the third step, a fourth step of removing the covering member is provided.
  2. 前記第1工程の前に、前記上金型および前記下金型において、前記キャビティ側の面を最終仕上げよりも厚みを残した状態に切削する第1予備工程と、前記第1工程の後に、前記上金型および前記下金型において、前記キャビティ側の面の最終仕上げを行う第2予備工程とを備えることを特徴とする請求項1に記載の金型装置の製造方法。
    Before the first step, in the upper die and the lower die, a first preliminary step of cutting the surface on the cavity side in a state leaving a thickness rather than the final finish, and after the first step, The method for manufacturing a mold apparatus according to claim 1, further comprising: a second preliminary step of final finishing the surface on the cavity side in the upper mold and the lower mold.
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Publication number Priority date Publication date Assignee Title
CN110883556A (en) * 2019-11-08 2020-03-17 东莞市闻誉实业有限公司 Method for manufacturing mold

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Publication number Priority date Publication date Assignee Title
JPH0276709A (en) * 1988-09-13 1990-03-16 Kasei Naoetsu:Kk Mold and manufacture thereof
JPH02214618A (en) * 1989-02-15 1990-08-27 Nippon Shokubai Kagaku Kogyo Co Ltd Mold made of resin and production thereof
JP2004346413A (en) * 2003-05-26 2004-12-09 Kyokuto Seiki:Kk Low strain-fine shrinkage electroformed mold, and its production method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0276709A (en) * 1988-09-13 1990-03-16 Kasei Naoetsu:Kk Mold and manufacture thereof
JPH02214618A (en) * 1989-02-15 1990-08-27 Nippon Shokubai Kagaku Kogyo Co Ltd Mold made of resin and production thereof
JP2004346413A (en) * 2003-05-26 2004-12-09 Kyokuto Seiki:Kk Low strain-fine shrinkage electroformed mold, and its production method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110883556A (en) * 2019-11-08 2020-03-17 东莞市闻誉实业有限公司 Method for manufacturing mold
CN110883556B (en) * 2019-11-08 2021-04-16 东莞市闻誉实业有限公司 Method for manufacturing mold

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