JP2005178232A - Molding machine, method for producing mold motor using molding machine, and mold motor produced by the method - Google Patents
Molding machine, method for producing mold motor using molding machine, and mold motor produced by the method Download PDFInfo
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- 238000000465 moulding Methods 0.000 title claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 7
- 229920005989 resin Polymers 0.000 claims abstract description 99
- 239000011347 resin Substances 0.000 claims abstract description 99
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 96
- 239000000047 product Substances 0.000 claims description 21
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 7
- 239000012778 molding material Substances 0.000 claims description 6
- 239000011265 semifinished product Substances 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000178 monomer Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- -1 allyl cyanurate Chemical compound 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
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- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- XIVNZHXRIPJOIZ-UHFFFAOYSA-N octadecanoic acid;zinc Chemical compound [Zn].CCCCCCCCCCCCCCCCCC(O)=O XIVNZHXRIPJOIZ-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/30—Reducing waste in manufacturing processes; Calculations of released waste quantities
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- Manufacture Of Motors, Generators (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
本発明は、空調機・給湯器・洗濯機などの家電機器に使用されるモールドモータに関する。より詳しくは、モールドモータ成形機、その成形機を用いたモールドモータの製造方法、及びその製造方法によるモールドモータに関する。 The present invention relates to a molded motor used in home appliances such as an air conditioner, a water heater, and a washing machine. More specifically, the present invention relates to a mold motor molding machine, a method of manufacturing a mold motor using the molding machine, and a mold motor by the manufacturing method.
近年、モータは図５図３に示すように制振性、形状任意性、信頼性の良さを活かした、熱硬化性樹脂により固定子全体を成形することが広く採用されている。 In recent years, as shown in FIG. 5 and FIG. 3, it has been widely adopted to form the entire stator of a motor using a thermosetting resin that takes advantage of vibration damping, shape flexibility, and reliability.
また、従来から使用されているモールドモータを成形する熱硬化性樹脂成形機を図４図２を参照しながら説明する。図４図２は熱硬化性樹脂成形機とその金型を示す略図である。熱硬化性樹脂７はポット８に挿入され、モータの巻線完成品６が設置された上金型３、下金型４、モータの巻線完成品の内径を保持する金型中芯５で構成されるキャビティ８内にプランジャー１で加圧され、金型内に構成されているランナー部１０を通じて前記キャビティ内に充填される。充填された後に熱硬化性樹脂７は金型の熱エネルギーにより硬化し不溶不融の樹脂となり、モールドモータの固定子を形成する。この成形方法は一般的にトランスファー成形と呼称されている。（例えば特許文献１参照）
しかしながら、従来から使用している熱硬化性樹脂成形機では完成製品に要しないランナー部が生じ、熱硬化性樹脂のために再利用できず材料ロスや廃棄物としての処理方法が課題となっていた。また、ランナー部と熱硬化性樹脂成形品との切断面が外観上問題となっていた。また、この切断面には、微小な突起部が生じる傾向であり、この突起部を除くために後加工を要することもあった。 However, the thermosetting resin molding machines that have been used in the past have runner parts that are not required for the finished product, and cannot be reused because of the thermosetting resin, and material loss and disposal methods as waste have become issues. It was. Moreover, the cut surface of a runner part and a thermosetting resin molded product has become a problem in appearance. In addition, a minute protrusion tends to be formed on the cut surface, and post-processing may be required to remove the protrusion.
本発明は従来からの上述の課題を解決するものであり、成形時のランナーを要しない成形機（ランナーレス熱硬化性樹脂成形機と呼称される）を提供することを目的とする。 An object of the present invention is to solve the above-described problems of the prior art and to provide a molding machine (called a runnerless thermosetting resin molding machine) that does not require a runner during molding.
上記課題を解決するための第１の発明は、熱硬化性樹脂を挿入するポットを有し、前記熱硬化性樹脂を金型の内に加圧注入するために稼動させるプランジャーを有し、前記金型のうちの上金型の少なくとも一部に可動自在な副上金型を設ける構成とし、この可動自在な副上金型で前記ポット内に挿入された前記熱硬化性樹脂を前記金型の内に加圧充填し、且つ、この可動自在な副上金型で前記熱硬化性樹脂の成形品の一部の形状を形成し、且つ、前記金型は前記成形品の成形に生じるランナー部が生じない構成を有する成形機である。 1st invention for solving the said subject has a pot which inserts a thermosetting resin, It has a plunger operated to pressurize and inject the thermosetting resin in a metallic mold, A movable sub-upper mold is provided on at least a part of the upper mold among the molds, and the thermosetting resin inserted into the pot by the movable sub-upper mold is used as the mold. The mold is pressurized and filled, and a part of the thermosetting resin molded product is formed by the movable upper mold, and the mold is generated when the molded product is molded. This is a molding machine having a configuration in which no runner part is generated.
また、第２の発明は、上記第１の発明において、上金型とポットが一体の構成を有する成形機である。 The second invention is the molding machine according to the first invention, wherein the upper mold and the pot have an integral structure.
また、第３の発明は、上記第１の発明の成形機を用いて、モータ外周をモールドしたモールドモータの製造方法である。 The third invention is a method of manufacturing a molded motor in which the outer periphery of the motor is molded using the molding machine of the first invention.
また、第４の発明は、上記第３の発明の製造方法おいて、熱硬化性樹脂が不飽和ポリエステル樹脂成形材料であり、前記熱硬化性樹脂を成形する前に予め計量し且つ４０℃から１００℃に加熱する工程を有する製造方法である。 Moreover, 4th invention is a manufacturing method of the said 3rd invention, Thermosetting resin is unsaturated polyester resin molding material, It measures beforehand from 40 degreeC before shape | molding the said thermosetting resin. It is a manufacturing method which has the process heated to 100 degreeC.
また、第５の発明は、
ポットと、プランジャーと、上金型と、下金型と、金型中芯とを有する成形機において、
（ａ）前記上金型のうちその一部に可動自在な構成の副上金型を設け、且つこの副上金型を前記プランジャーに固定させる構成、
（ｂ）前記上金型と、前記下金型と、前記金型中芯とから構成されるキャビティの内にモータの巻線済み半完成品が収納される構成、
（ｃ）上記ポットに４０〜１００℃で予熱された熱硬化性樹脂が挿入されて、前記上金型内を可動自在に設けられた前記副上金型により前記熱硬化性樹脂が加圧され、前記上金型及び前記金型中芯と前記副上金型とのせん断応力により前記熱硬化性樹脂が加熱されて熔融される構成、
（ｄ）前記キャビティに前記熱硬化性樹脂が充填され、前記プランジャーからの圧力により前記副上金型と前記上金型とが一体の金型となり、この一体の金型により前記熱硬化性樹脂の成形品の一部の形状を成形する構成、
とからなる構成を有する成形機である。
In addition, the fifth invention,
In a molding machine having a pot, a plunger, an upper mold, a lower mold, and a mold core,
(A) a configuration in which a sub-upper mold having a movable structure is provided on a part of the upper mold, and the sub-upper mold is fixed to the plunger;
(B) A configuration in which a motor-finished semi-finished product is accommodated in a cavity constituted by the upper die, the lower die, and the die core.
(C) A thermosetting resin preheated at 40 to 100 ° C. is inserted into the pot, and the thermosetting resin is pressurized by the sub-upper mold provided movably in the upper mold. A configuration in which the thermosetting resin is heated and melted by shear stress between the upper mold and the mold core and the sub-upper mold,
(D) The cavity is filled with the thermosetting resin, and the sub-upper mold and the upper mold become an integral mold by the pressure from the plunger, and the thermosetting property is obtained by the integral mold. A configuration for molding a part of a resin molded product,
Is a molding machine having a configuration consisting of:
また、第６の発明は、
ポットと、プランジャーと、上金型と、下金型と、金型中芯とを有する成形機を用いて、
（ａ）前記上金型のうちその一部に可動自在な構成の副上金型を設け、且つこの副上金型を前記プランジャーに固定させる工程、
（ｂ）前記上金型と、前記下金型と、前記金型中芯とから構成されるキャビティの内にモータの巻線済み半完成品が収納される工程、
（ｃ）上記ポットに４０〜１００℃で予熱された熱硬化性樹脂が挿入されて、前記上金型内を可動自在に設けられた前記副上金型により前記熱硬化性樹脂が加圧され、前記上金型及び前記金型中芯と前記副上金型とのせん断応力により前記熱硬化性樹脂が加熱されて熔融される工程、
（ｄ）前記キャビティに前記熱硬化性樹脂が充填され、前記プランジャーからの圧力により前記副上金型と前記上金型とが一体の金型となり、この一体の金型により前記熱硬化性樹脂の成形品の一部の形状を成形する工程、
とからなる工程を有するモールドモータの製造方法である。
In addition, the sixth invention,
Using a molding machine having a pot, a plunger, an upper mold, a lower mold, and a mold core,
(A) providing a sub-upper mold having a movable structure in a part of the upper mold, and fixing the sub-upper mold to the plunger;
(B) a step of storing a motor-finished semi-finished product in a cavity formed by the upper mold, the lower mold, and the mold core;
(C) A thermosetting resin preheated at 40 to 100 ° C. is inserted into the pot, and the thermosetting resin is pressurized by the sub-upper mold provided movably in the upper mold. A step in which the thermosetting resin is heated and melted by shear stress between the upper mold and the mold core and the sub-upper mold,
(D) The cavity is filled with the thermosetting resin, and the sub-upper mold and the upper mold become an integral mold by the pressure from the plunger, and the thermosetting property is obtained by the integral mold. Molding a part of a resin molded product,
The manufacturing method of the mold motor which has the process which consists of these.
また、第７の発明は、上記第３の発明、第４の発明、又は第６の発明の製造方法を用いて得られるモールドモータにおいて、
モールドモータの熱硬化性樹脂による成形体表面に、前記熱硬化性樹脂の成形のときに用いられる金型の下金型、上金型、及び副上金型の合わせ面により生じるパーティングラインのみを有するモールドモータである。
Moreover, 7th invention is the molded motor obtained using the manufacturing method of said 3rd invention, 4th invention, or 6th invention,
Only the parting lines generated by the mating surfaces of the lower mold, upper mold, and sub-upper mold of the mold used when molding the thermosetting resin on the surface of the molded body of the thermosetting resin of the mold motor It is a mold motor which has.
また、第８の発明は、上記第３の発明、第４の発明、又は第６の発明の製造方法を用いて得られるモールドモータにおいて、
モールドモータの熱硬化性樹脂による成形体表面に、前記熱硬化性樹脂の成形のときに用いられる金型の下金型、上金型、及び副上金型の合わせ面により生じるパーティングラインのみを有し、且つ前記金型がランナーを有さない構造により成形される前記成形体表面に前記ランナーによる突起部を有さないモールドモータである。
An eighth invention is a molded motor obtained by using the manufacturing method of the third invention, the fourth invention, or the sixth invention,
Only the parting lines generated by the mating surfaces of the lower mold, upper mold, and sub-upper mold of the mold used when molding the thermosetting resin on the surface of the molded body of the thermosetting resin of the mold motor And a mold motor in which the mold does not have a protrusion by the runner on the surface of the molded body formed by a structure having no runner.
以上のように、本発明によれば、従来生じていたランナー部の量が大幅に低減され、材料ロスや廃棄物処理の問題を解消でき、且つ、ランナー部と熱硬化性樹脂成形品と切断面がなくなり外観が向上できる。また、熱硬化性樹脂に不飽和ポリエステル樹脂成形材料を使用し、且つ、４０〜１００℃に予熱することにより寸法精度や品質の良いモールドモータの成形が可能である。 As described above, according to the present invention, the amount of the runner portion that has conventionally occurred can be greatly reduced, the problem of material loss and waste disposal can be solved, and the runner portion and the thermosetting resin molded product can be cut. The appearance is improved by eliminating the surface. Further, by using an unsaturated polyester resin molding material for the thermosetting resin and preheating to 40 to 100 ° C., it is possible to mold a molded motor with good dimensional accuracy and quality.
以下本発明の実施の形態について、図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.
（実施の形態）
以下、本発明の実施の形態について、図１・図２・図３を用いて説明する。
(Embodiment)
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1, 2, and 3. FIG.
図１は本発明の一実施の形態でモールドモータを成形するためのランナーレス熱硬化性樹脂成形であり、熱硬化性樹脂をポットに投入する段階を示している略図である。可動する上金型の一部９はプランジャー１に固定され、上金型３、下金型４、モータの巻線完成品の内径を保持する金型中芯５で構成されるキャビティ８内にモータの巻線済み半完成品６が設置されている。
FIG. 1 is a runnerless thermosetting resin molding for molding a molded motor according to an embodiment of the present invention, and is a schematic diagram showing a stage of putting a thermosetting resin into a pot. A part 9 of the movable upper mold is fixed to the plunger 1 and is in a
また、図２は４０〜１００℃で予熱された熱硬化性樹脂７がポット２に挿入され、前記、熱硬化性樹脂７が上金型内３を可動する副上金型９で加圧され、上金型３や金型中芯５とのせん断応力により、熱硬化性樹脂７が加熱、溶融し、且つキャビティ８に充填されているところを示している略図である。
In FIG. 2, a
また、図３は可動自在な副上金型９と上金型３（主上金型）がプランジャー１の圧力で一体の上金型となり、可動する副上金型９で熱硬化性樹脂成形品の一部の形状を形成する成形が終了した段階を示す略図である。このように、上金型３（主上金型）と副上金型９とが組み合わされることにより上金型として構成される構造である。また、上金型は、上金型３（主上金型）と副上金型９とに分けられる構成の構造である。 Further, FIG. 3 shows that the movable upper die 9 and the upper die 3 (main upper die) are integrated into an upper die by the pressure of the plunger 1, and the movable upper die 9 is used as a thermosetting resin. It is the schematic which shows the step which the shaping | molding which forms the one part shape of a molded article was complete | finished. In this way, the upper mold 3 (main upper mold) and the sub upper mold 9 are combined to form an upper mold. The upper mold has a structure divided into an upper mold 3 (main upper mold) and a sub-upper mold 9.
図１・図２・図３に示されるランナーレス熱硬化性樹脂成形機を使用しモールドモータの成形を行なった結果、図４に示すような従来の方法と比べ、生じるランナー部の量は大幅に低減され、材料ロスや廃棄物処理の問題を解消でき、且つ、ランナー部と熱硬化性樹脂成形品と切断面がなくなり外観の向上が図れる。また、熱硬化性樹脂に不飽和ポリエステル樹脂成形材料を使用し、且つ、４０〜１００℃に予熱することにより寸法精度や品質の良いモールドモータの成形が可能である。 As a result of molding the molded motor using the runnerless thermosetting resin molding machine shown in Fig.1, Fig.2, Fig.3, the amount of runner part generated is much larger than the conventional method as shown in Fig.4. Thus, the problem of material loss and waste disposal can be solved, and the runner portion, the thermosetting resin molded product and the cut surface are eliminated, and the appearance can be improved. Further, by using an unsaturated polyester resin molding material for the thermosetting resin and preheating to 40 to 100 ° C., it is possible to mold a molded motor with good dimensional accuracy and quality.
熱硬化性樹脂を挿入するポットを設け、この熱硬化性樹脂を金型内に加圧注入するために稼動するプランジャーを有する成形機の構成とし、その金型において上金型の少なくとも一部を可動する副上金型とし、この可動する副上金型でポット内に挿入される熱硬化性樹脂を金型内に加圧充填し、そして、この可動する上金型で熱硬化性樹脂成形品の一部の形状を形成する熱硬化性樹脂成形機の構成により、ランナー部を発生させることなくキャビティ内に均一に熱硬化性樹脂を充填でき、且つ熱硬化性樹脂成形品とランナー部の切断面をなくすことができる。 A molding machine having a pot for inserting a thermosetting resin and having a plunger that operates to pressurize and inject the thermosetting resin into the mold, and at least a part of the upper mold in the mold The movable upper mold is filled with a thermosetting resin that is inserted into the pot with the movable upper mold, and the thermosetting resin is filled with the movable upper mold. With the configuration of the thermosetting resin molding machine that forms a part of the shape of the molded product, the thermosetting resin can be uniformly filled into the cavity without generating the runner portion, and the thermosetting resin molded product and the runner portion The cut surface can be eliminated.
ここで、可動する副上金型は成形する成形品の投影面積の３分の１以下の面積であることが好ましい構成である。これは、熱硬化性樹脂がポット及び固定された上金型内を熱硬化性樹脂が流動するときに、金型と熱硬化性樹脂とのせん断応力により熱硬化性樹脂の溶融・加熱が促進され、熱硬化性樹脂の充填性の向上や硬化時間の短縮が図れるからである。 Here, it is preferable that the movable upper mold has an area that is one third or less of the projected area of the molded product to be molded. This is because when the thermosetting resin flows in the upper mold where the thermosetting resin is fixed to the pot, the melting and heating of the thermosetting resin is accelerated by the shear stress between the mold and the thermosetting resin. This is because the filling property of the thermosetting resin can be improved and the curing time can be shortened.
可動する副上金型の面積は、成形する成形品の投影面積の３分の１以上の面積にした場合、加圧充填される熱硬化性樹脂により金型内の空気の排出に不具合が生じやすく、このために成形品にボイドが発生しやすくなり、且つ、溶融・過熱が不均一になり外観不具合や硬化時間の短縮化を図る観点で好ましくない。 When the area of the movable upper mold is more than one-third of the projected area of the molded product to be molded, there is a problem in the discharge of air in the mold due to the pressure-filled thermosetting resin. For this reason, voids are likely to occur in the molded product, and melting and overheating become uneven, which is not preferable from the viewpoint of appearance defects and shortening of the curing time.
上金型とポットが一体で構成される構成によれば、ポットと上金型の温度が均一になることで、ポット内に挿入された熱硬化性樹脂の温度が均一になり、キャビティ内に熱硬化性樹脂をスムーズに充填することができる。 According to the configuration in which the upper mold and the pot are integrally formed, the temperature of the pot and the upper mold becomes uniform, so that the temperature of the thermosetting resin inserted into the pot becomes uniform, and the temperature inside the cavity is increased. The thermosetting resin can be filled smoothly.
ランナーレス熱硬化性樹脂成形機を用いてモータ外周をモールドしたモールドモータとすることで再利用不能なランナー部を発生させず、且つ、ランナー部とモールドモータの切断面がないものを実現できる。 By using a runnerless thermosetting resin molding machine as a molded motor in which the outer periphery of the motor is molded, a non-reusable runner portion is not generated, and the runner portion and the molded motor have no cut surface.
熱硬化性樹脂に不飽和ポリエステル樹脂成形材料を使用し、成形する前に予め計量された前記不飽和ポリエステル成形材料を４０℃から１００℃に加熱する構成により、寸法精度や熱硬化性樹脂の流動性が向上し、品質の良いモールドモータを提供できる。 By using an unsaturated polyester resin molding material for the thermosetting resin and heating the unsaturated polyester molding material weighed in advance from 40 ° C. to 100 ° C. before molding, dimensional accuracy and flow of the thermosetting resin The mold motor with good quality can be provided.
ここでいう液状樹脂は不飽和ポリエステル樹脂と低収縮剤とラジカル重合開始剤とから成るものである。不飽和ポリエステル樹脂とは不飽和ポリエステルアルキドの共重合性単量体溶液であり、共重合性単量体にはビニル系或いはアリル系があり例えば、スチレン、ビニルトルエン、メチルアクリレート、ジアリルフタレート、トリアリルシアヌレート等がある。 The liquid resin here is composed of an unsaturated polyester resin, a low shrinkage agent, and a radical polymerization initiator. The unsaturated polyester resin is a copolymerizable monomer solution of unsaturated polyester alkyd, and the copolymerizable monomer includes vinyl type or allyl type. For example, styrene, vinyl toluene, methyl acrylate, diallyl phthalate, And allyl cyanurate.
また、低収縮剤として共重合性単量体に溶解可能な熱可塑性樹脂としてポリスチレン、飽和ポリエステル樹脂、酢酸ビニル樹脂等が使用され、ラジカル重合開始剤として有機過酸化物、例えばベンゾイルパーオキサイド、ｔ−ブチルパーベンゾエイト等があり、その他に重合促進剤・重合禁止剤が任意に使用される。また、無機充填材としては炭酸カルシウム、水酸化アルミニウム、シリカ、クレー、タルク等が使用されている。 In addition, polystyrene, saturated polyester resin, vinyl acetate resin and the like are used as a thermoplastic resin that can be dissolved in a copolymerizable monomer as a low shrinkage agent, and an organic peroxide such as benzoyl peroxide, t is used as a radical polymerization initiator. -Butyl perbenzoate and the like, and other polymerization accelerators and polymerization inhibitors are optionally used. In addition, calcium carbonate, aluminum hydroxide, silica, clay, talc and the like are used as the inorganic filler.
また、その他に補強剤としてガラス繊維、ビニロン繊維等を、内部離型剤としてステアリンサン亜鉛、ステアリン酸カルシウム等を、顔料としてカーボンブラック、酸化チタン等が任意に使用される。 In addition, glass fiber, vinylon fiber or the like as a reinforcing agent, stearic acid zinc or calcium stearate or the like as an internal mold release agent, and carbon black or titanium oxide as a pigment are arbitrarily used.
また、本発明の製造方法は次のとおりである。 Moreover, the manufacturing method of this invention is as follows.
ポットと、プランジャーと、上金型と、下金型と、金型中芯とを有する成形機において、（ａ）上記の上金型のうちその一部に可動自在な構成の副上金型を設け、且つこの副上金型を前記プランジャーに固定させる工程と、（ｂ）上記の上金型と、上記の下金型と、上記の金型中芯とから構成されるキャビティの内にモータの巻線済み半完成品が収納される工程と、（ｃ）上記のポットに４０〜１００℃で予熱された熱硬化性樹脂が挿入されて、上記の上金型内を可動自在に設けられた上記の副上金型により熱硬化性樹脂が加圧され、上記の上金型及び上記の金型中芯と上記の副上金型とのせん断応力により熱硬化性樹脂が加熱されて熔融される工程と、（ｄ）上記のキャビティに熱硬化性樹脂が充填され、上記のプランジャーからの圧力により上記の副上金型と上記の上金型とが一体の金型となり、この一体の金型により熱硬化性樹脂の成形品の一部の形状を成形する工程とからなる工程である。 In a molding machine having a pot, a plunger, an upper mold, a lower mold, and a mold core, (a) a sub-upper mold having a configuration in which a part of the upper mold is movable. Providing a mold and fixing the sub-upper mold to the plunger; and (b) a cavity formed of the upper mold, the lower mold, and the mold core. (C) A thermosetting resin preheated at 40 to 100 ° C. is inserted into the pot, and the inside of the upper mold is movable. The thermosetting resin is pressurized by the above-described sub mold provided on the thermosetting resin, and the thermosetting resin is heated by the shear stress between the above-described upper mold and the above-mentioned mold middle core and the above-described upper mold. (D) the cavity is filled with a thermosetting resin, and the pressure from the plunger is increased. Ri and secondary upper mold and the upper mold of the come together of the mold, a step comprising the step of forming a portion of the shape of the molded article of a thermosetting resin by a die of this integral.
このように本発明によれば、モールドモータの熱硬化性樹脂による成形体表面に、熱硬化性樹脂の成形のときに用いられる金型の下金型、上金型、及び副上金型の合わせ面により生じるパーティングラインのみが生じる成形体を得ることができ、さらに、金型にランナーを有さない構造を図れることにより、成形される成形体表面にランナーによる突起部を有さないモールドモータを得られる。 As described above, according to the present invention, the lower mold, the upper mold, and the sub-upper mold of the mold used when molding the thermosetting resin are formed on the surface of the molded body of the thermosetting resin of the mold motor. A molded product in which only parting lines generated by the mating surfaces can be obtained, and a mold that does not have a runner in the mold can be obtained, so that the molded product surface does not have a runner projection. Get a motor.
なお、上記の説明においては、金型の上部部分を上金型と呼称し、金型の下部部分を下金型と呼称しているが、説明の都合、平易な表現として説明している。上金型の表現を第１の金型に置換し、下金型の表現を第２の金型と置換してもよい。 In the above description, the upper part of the mold is referred to as the upper mold, and the lower part of the mold is referred to as the lower mold. The expression of the upper mold may be replaced with the first mold, and the expression of the lower mold may be replaced with the second mold.
本発明の成形機、その成形機を用いたモールドモータの製造方法、及びその製造方法によるモールドモータは、従来生じていたランナー部の量が大幅に低減され、材料ロスや廃棄物処理の課題を解消でき、且つ、ランナー部と熱硬化性樹脂成形品と切断面がなくなり外観が向上できるという効果を有し、機器の生産工程における省資源化に貢献し、環境活動の観点でも好ましいものである。 The molding machine of the present invention, the method of manufacturing a mold motor using the molding machine, and the mold motor by the manufacturing method are greatly reduced in the amount of runner parts that have conventionally occurred, and the problem of material loss and waste disposal It has the effect of eliminating the runner part, the thermosetting resin molded product and the cut surface, improving the appearance, contributing to resource saving in the production process of the device, and preferable from the viewpoint of environmental activities. .
１ プランジャー
２ ポット
３ 上金型（主上金型）
４ 下金型
５ 金型中芯
６ 巻線済み半完成品
７ 熱硬化性樹脂
８ キャビティ
９ 可動する上金型（副上金型）
１０ ランナー部
１１ 巻線
１２ 固定子鉄芯
１３ 熱硬化性樹脂
１４ 回転子
１５ 軸
１６ ベアリング
1
4
DESCRIPTION OF
Claims (8)
（ａ）前記上金型のうちその一部に可動自在な構成の副上金型を設け、且つこの副上金型を前記プランジャーに固定させる構成、
（ｂ）前記上金型と、前記下金型と、前記金型中芯とから構成されるキャビティの内にモータの巻線済み半完成品が収納される構成、
（ｃ）上記ポットに４０〜１００℃で予熱された熱硬化性樹脂が挿入されて、前記上金型内を可動自在に設けられた前記副上金型により前記熱硬化性樹脂が加圧され、前記上金型及び前記金型中芯と前記副上金型とのせん断応力により前記熱硬化性樹脂が加熱されて熔融される構成、
（ｄ）前記キャビティに前記熱硬化性樹脂が充填され、前記プランジャーからの圧力により前記副上金型と前記上金型とが一体の金型となり、この一体の金型により前記熱硬化性樹脂の成形品の一部の形状を成形する構成、
とからなる構成を有する成形機。 In a molding machine having a pot, a plunger, an upper mold, a lower mold, and a mold core,
(A) a configuration in which a sub-upper mold having a movable structure is provided on a part of the upper mold, and the sub-upper mold is fixed to the plunger;
(B) A configuration in which a motor-finished semi-finished product is accommodated in a cavity constituted by the upper die, the lower die, and the die core.
(C) A thermosetting resin preheated at 40 to 100 ° C. is inserted into the pot, and the thermosetting resin is pressurized by the sub-upper mold provided movably in the upper mold. A configuration in which the thermosetting resin is heated and melted by shear stress between the upper mold and the mold core and the sub-upper mold,
(D) The cavity is filled with the thermosetting resin, and the sub-upper mold and the upper mold become an integral mold by the pressure from the plunger, and the thermosetting property is obtained by the integral mold. A configuration for molding a part of a resin molded product,
A molding machine having a configuration consisting of:
（ａ）前記上金型のうちその一部に可動自在な構成の副上金型を設け、且つこの副上金型を前記プランジャーに固定させる工程、
（ｂ）前記上金型と、前記下金型と、前記金型中芯とから構成されるキャビティの内にモータの巻線済み半完成品が収納される工程、
（ｃ）上記ポットに４０〜１００℃で予熱された熱硬化性樹脂が挿入されて、前記上金型内を可動自在に設けられた前記副上金型により前記熱硬化性樹脂が加圧され、前記上金型及び前記金型中芯と前記副上金型とのせん断応力により前記熱硬化性樹脂が加熱されて熔融される工程、
（ｄ）前記キャビティに前記熱硬化性樹脂が充填され、前記プランジャーからの圧力により前記副上金型と前記上金型とが一体の金型となり、この一体の金型により前記熱硬化性樹脂の成形品の一部の形状を成形する工程、
とからなる工程を有するモールドモータの製造方法。 Using a molding machine having a pot, a plunger, an upper mold, a lower mold, and a mold core,
(A) providing a sub-upper mold having a movable structure in a part of the upper mold, and fixing the sub-upper mold to the plunger;
(B) a step of storing a motor-finished semi-finished product in a cavity formed by the upper mold, the lower mold, and the mold core;
(C) A thermosetting resin preheated at 40 to 100 ° C. is inserted into the pot, and the thermosetting resin is pressurized by the sub-upper mold provided movably in the upper mold. A step in which the thermosetting resin is heated and melted by shear stress between the upper mold and the mold core and the sub-upper mold,
(D) The cavity is filled with the thermosetting resin, and the sub-upper mold and the upper mold become an integral mold by the pressure from the plunger, and the thermosetting property is obtained by the integral mold. Molding a part of a resin molded product,
The manufacturing method of the molded motor which has the process which consists of.
モールドモータの熱硬化性樹脂による成形体表面に、前記熱硬化性樹脂の成形のときに用いられる金型の下金型、上金型、及び副上金型の合わせ面により生じるパーティングラインのみを有するモールドモータ。 In the molded motor obtained using the manufacturing method according to claim 3, claim 4, or claim 6,
Only the parting lines generated by the mating surfaces of the lower mold, upper mold, and sub-upper mold of the mold used when molding the thermosetting resin on the surface of the molded body of the thermosetting resin of the mold motor A molded motor.
モールドモータの熱硬化性樹脂による成形体表面に、前記熱硬化性樹脂の成形のときに用いられる金型の下金型、上金型、及び副上金型の合わせ面により生じるパーティングラインのみを有し、且つ前記金型がランナーを有さない構造により成形される前記成形体表面に前記ランナーによる突起部を有さないモールドモータ。
In the molded motor obtained using the manufacturing method according to claim 3, claim 4, or claim 6,
Only the parting lines generated by the mating surfaces of the lower mold, upper mold, and sub-upper mold of the mold used when molding the thermosetting resin on the surface of the molded body of the thermosetting resin of the mold motor The mold motor which does not have the protrusion part by the said runner on the said molded object surface shape | molded by the structure where the metal mold | die does not have a runner.
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Cited By (2)
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| US7867430B2 (en) | 2009-05-20 | 2011-01-11 | Samsung Electronics Co., Ltd. | Injection mold and injection molding method using the same |
| CN102205587A (en) * | 2010-03-16 | 2011-10-05 | 松下电器产业株式会社 | Forming machine, manufacturing method of moulding motor, and electrical apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7867430B2 (en) | 2009-05-20 | 2011-01-11 | Samsung Electronics Co., Ltd. | Injection mold and injection molding method using the same |
| CN102205587A (en) * | 2010-03-16 | 2011-10-05 | 松下电器产业株式会社 | Forming machine, manufacturing method of moulding motor, and electrical apparatus |
| JP2011213103A (en) * | 2010-03-16 | 2011-10-27 | Panasonic Corp | Molding machine, mold motor producing method using molding machine, and electric apparatus equipped with mold motor produced by the method |
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