201031518 六、發明說明： 【發明所屬之技術領域】 本發明係與射出成形機用之模具的製造方法、模具分割 體及模具有關’該射出成形機係使用水或蒸氣作為熱媒 體’而邊將模具作加熱、冷卻邊進行射出成形。 • 【先前技術】 - 射出成形機之射出填充步射，若模具之溫度處於較低 Φ t狀態，已填充於模具之腔内的溶融樹脂之表面係急速固 化。此時，模具的腔面對於成形品之轉印並不充分，且會 有在成形品之表面產生所謂熔合線、銀條痕之缺陷的情 形。 為防止此缺陷，提出有如下之成形方法，即：在射出填 充、保壓、冷卻、模具開閉之一連的步驟中，於迄至開始 填充樹脂之期間，對於模具之媒體通路供應加熱媒體而將 模具加熱’且自樹脂填充開始後經過特定時間之後至開模 φ 止的期間，供應冷卻媒體而將模具冷卻（譬如參考專利文 獻1)。藉此’可將熔融樹脂填充於已預先加熱至樹脂之熱 變形溫度以上之溫度的模具，使樹脂表面之固化延遲，於 樹脂填充後，可在將模具冷卻至樹脂之玻璃移轉溫度或熱 w 變形溫度以下後’進行開模，.以抑制如上述之缺陷發生。 一般，在射出成形上使用熱媒體積極地進行溫度控制 時，為了讓成形周期縮短化，係講求迅速地進行其溫度上 昇、下降。因而，進行如下之作法，即：藉由在模具基底 安裝形成模具之腔表面的腔構件而構成模具，且在模具基 140094.doc 201031518 底與腔構件之對準面排列並形成多個媒體通路。 再者，部分性地具有凸形狀之成形品時，就凸部分中之 加熱、冷卻構造而言，有如下之手法，即，如圖1〇(〇所示 般，與凸形狀部A以外同樣地，在模具基底〗，針對凸形狀 部A安裝腔構件2,其亦係在與模具基底丨之對準面形成有 媒體通路3。 又，亦有如下手法，#，如圖10(b)所示般，針對凸形 狀部Α以外，係在模具基底丨安裝腔構件4，針對凸形狀部 A，係形成有媒體槽5,並藉由使熱媒體流至此媒體槽5而〇 進行溫度控制，前述腔構件4係在與模具基底丨之對準面形 成有媒體通路3,而媒體槽5係在模具基底〖位於凸形狀部1 之内側。 [先行技術文獻] [專利文獻] [專利文獻1]日本特開2〇〇5_329577號公報 [專利文獻2]曰本特開平6_238728號公報 【發明内容】 @ [發明所欲解決之問題] 然而，如圖10(a)所示般之構造，在凸形狀部A中， 易將腔構件2安裝並固定於模具基底1。 ，如專利文獻2所記載之 ，並將之分別安裝於模具 因而，亦提出有如下方法，即 技術般，將腔構件分割為複數個 基底。 然而 在複數個腔構件群組之接續部分， 交接線可能會 140094.doc 201031518 外露於腔表面，或者加熱、冷卻媒體會從内部之媒體流路 外茂。 進而，射出成形為了製造多數個製品，係將加熱、冷卻 之熱應力反覆地施加於模具。若接續處之接合不充足且因 . 接合不良而存在缺陷，當負荷有熱應力時，缺陷係發揮與 龜裂同樣的作用，缺陷呈蔓延擴大而發生模具之破損等， ' 在耐久性等方面殘存在著待解決問題。 φ 又，在如圖10(b)所示般之構造方面，在凸形狀部A與其 以外之部分，由於加熱、冷卻構造不同，因此難以進行均 等之加熱、冷卻，而有起因於模具溫度分佈之品質方面的 待解決問題。 本發明係依據如此之技術性待解決問題而研發者，目的 在於提供一種可提昇製品品質且提昇模具的耐久性之模具 的製造方法、模具分割體及模具。 [解決問題之技術手段] • 根據前述目的而研發之本發明係-對模具之製造方法， 特徵為其係董十女裝於射出成形機，且用以藉由射出成形 ㈣成成形品之模具之製造方法；在—對模具之_方形成 ^ ’該凸㈣朝另—方之模具突出，^在絲品形成有 凸形狀部者；凸部係藉由將模具分割體往突出方向層叠並 接合而形成，而模具分割體係沿著該凸部之突出方向分割 為複數個。且，接合將層疊之模具分割體群組時，係在模 具刀割體群組之至少一方的接合面預先形成突條，並在將 犬條之刖端部抵住另一方之模具分割體的狀態，接合模具 140094.doc 201031518 分割體群組。 如此：若在將形成於模具分割體之至少一方的接 突條之前端部抵住另—方之模具㈣體的狀態，_ 模具分割體群組’在突條之部分尤其可確實進行接 若將此突條沿著模具分割體之接合面的外周緣部：成， 係可確實接合模具分割體群組之接合面的外周緣部亦 即，凸部之外表面（腔面）’，可防止於腔面出現模具分^ 體群組之接續線。 ° 又，如將突條沿著形成於接合面之溝形成，接合部分係 僅成為此溝之部分的周圍之狹窄區域，可易於提昇接合面 之面一次精度，前述接合面係形成在射出成形時用於進行 模具之溫度調整的熱媒體通路。藉此，由於可防止因在溝 之部分以外進行接合而在溝周圍造成間隙之缺失，因此可 確實進行在溝之周圍的接合，可防止來自熱媒體通路之熱 媒體的外洩。 此時’形成於接合面之溝宜在相互呈對向之模具分割體 之雙方，以相對於接合面相互呈對稱之剖面形狀形成。 進而，此突條係藉由在腔面確實進行模具分割體群組之 接續線部的接合’防止產生接合缺陷之接合不良。藉此， 在反覆進行射出成形周期而反覆將模具加熱、冷卻時，可 防止因熱應力而在突條之附近於模具分割體群組之接合部 造成龜裂。 亦可在相互接合之模具分割體的雙方之接合面形成突 條。進而，亦可將形成於一方之接合面的突條，與形成於 140094.doc 201031518 另-方之接合面的突條配置為相互錯開。如此，在將接人 面群組對接時，可防止模具分割體群組偏離沿接合面之； 向。 突條係以將其寬度設為〇 5〜2〇 mm、將其 為佳。突條之寬度的更理想尺寸w〜5mm j 间度的更理想尺寸為0.05〜0.2 mm。 #可為—種模具分割體’其係為了形成形成於模 ::的^ ’而沿著凸部之突出方向將凸部分割為複數個而 成’前述模具係在藉由射出成形所形成之成形品形成有凸 形狀部者。此模具分龍之特徵為具備：、溝，其係形成於 接合面，該接合面係於與其他模具分割體藉由譬如擴散接 合法等之接合法而接合之接合面，形成有在射出成形時用 於進订模具之溫度調整的熱媒體通路者；及突條，其係沿 著接合面之外周緣部及溝而形成。 、。 此模具分割體係極適合上述之模具之製造方法。 本發明亦可為一種模具，特徵為其係安裝於射出成形 且用以藉由射出成形而形成成形品；該模具具備：固 定側模具，其係固定於射出成形機；及可動側模具，苴係 於與對固定侧模具呈對向之狀態，安裝為可接近、遠離於 射出成形機；纟固定側模具與可動側模具之-方，係形成 有朝固定側模具與可動側模具之另一方突出之凸部且在 成形印形成有凸形狀部；凸部係藉由將模具分割體往突出 方向層叠並接合而形成’而模具分龍係沿著該凸部之突 出方向分割為複數個；在相互接合之模具分割體群組的至 140094.doc 201031518 ^接σ面形成犬條，並在將突條之前端部抵住另一 方之模具分割體的狀態，接合模具分割體群組。 [發明之效果] 根據本發明’如在將形成於模具分割體之至少_方的接 合面之突條的前端部抵住另一方之模具分割體的狀態，接 合此等模具分割體群組，在突條之部分尤其可確實進行接 右將此犬條沿著模具分割體之接合面的外周緣部、或 沿著形成於接合面之溝而形成，可防止在模具分割體群組 之接合面的外周緣部，亦即，凸部之外表面（腔面）出現模 具分割體群組之接績線，及防止來自熱媒體通路之熱媒體 的外Α ’别述接合面係、形成在射出成形時用於進行模具之 溫度調整的熱媒體通路者。其結果，可提昇製品品質且提 昇模具的耐久性。 ^ 【實施方式】 以下，依附圖所示之實施型態而詳細說明本發明。 圖1係用於說明本實施型態中之射出成形機ig的概略構 成之圖。在本實施型態中，作為加熱媒體係舉出使用熱水 之例。 如圖1所示般，射出成形機10之鎖模裝置，係在基台u 固定設置有固定模板12,而在固定模板12安裝有固定側模 具13。與固定側模具13呈對向之可動侧模具14，係安裝於 對固定模板12呈對向配置之可動模板15。可動模板15係於 鋪設在基台11之引導軌16加以導向，並介以線性轴承而對 固定模板12可作對向移動。在用於模具開閉之可動模板b 140094.doc 201031518 的移動上，係使用電動滾珠螺桿17。 複數個拉杵㈣直結設置於柱塞19，而其係在内建於固 定模板12之複數個鎖模油麼汽缸⑽作摺動。各拉杵18 係貫料動模板15之貫職。在拉杵18之前端部 …、有螺栓溝18a，藉由在此螺栓溝…卡合著配置於可 =板15之反模具侧的半切螺母⑽，而將拉杵以之 方向作固定拘束。 Φ 13=元2°係電動驅動方式。在具備抵接於固定側模具 -俨的二口的噴嘴之射出汽缸21，係設有與射出汽缸21 在rw、""稱方式女裝著—對射出驅動伺服馬達22、22， 在同達22、22之輸出軸係直結著滾珠螺桿轴& 對二螺=軸㈣係螺合著安農於移動框架… 對滾珠螺桿螺母25、25。藉ώ 一 叫乍同步㈣㈣，射服馬達22、 轴方向作前後進退。螺釘加係在射出汽缸21之中往 射出汽缸21之射出螺釘21b係藉由安裝 射出螺釘旋轉驅動馬達26而被旋轉驅^進^ 2 内之樹脂的旋轉送出與可塑化。 卩射出几缸21 射出成形控制裝置5〇係遵照 油至鎖模油壓汽缸12a，傳送電产二之程式’傳送工作 動伺服馬達22、22,使射:，出單元2〇之射出驅 流至射出螺釘2lb之射 ;lb作前後進退’傳送電 的可塑化。 ”疋轉驅動馬達26而指示樹脂 14〇094.doc 201031518 射出單元2G係使熔融樹脂射出至藉由將固㈣模具叫 可動侧模具14鎖模而形成的模具腔之中。成形品在冷卻固 化後，可動側模具14係解開與固定侧模具13之鎖模結合， 藉由移動用之電動滾珠螺桿17之工作而離開固定側^具 13’而成為可取出成形品。 在固定側模具13、可動側模具14，係形成有用於將模具 表面作加熱、冷卻之熱媒體通路3〇、31。為了迅速傳達 熱，急速將模具腔面作加熱冷卻，熱媒體通路3〇、3丨係形 成於盡可能接近模具腔之位置。然後，在此熱媒體通路 30 31係各自連接著用於從外部將熱媒體送入熱媒體通路 30、31的熱媒體供應管321、及用於從熱媒體通路⑽、η 將熱媒體往外部排出之熱媒體排出管32〇。 如圖2所示般，在熱媒體供應管321係連接著供應加熱媒 體之加熱媒體供應裝置33、及供應冷卻媒體之冷卻媒體供 應裝置34。在本實施型態中，加熱媒體、冷卻媒體係使用 水（液體）。 加熱媒體供應裝置33係藉由未圖示之幫浦，將加熱媒體 通過熱媒體供應管321送入熱媒體通路30、31，且使經由 熱媒體通路30、3 1之加熱媒體通過熱媒體排出管32〇而循 環至加熱媒體供應裝置33。 冷卻媒體供應裝置3 4係藉由未圖示之幫浦，將冷卻媒體 通過熱媒體供應管321送入熱媒體通路30、31，且使經由 熱媒體通路30、31之冷卻媒體通過熱媒體排出管320而循 環至冷卻媒體供應裝置34。 140094.doc -10· 201031518 此等加熱媒體供應裝置33、冷卻媒體供應裝置34係連接 於媒體切換裝置60。在媒體切換裝置60，為了將供應至熱 媒體供應管321之熱媒體作切換，而設有開閉閥（無圖示）， 其係各自可將來自加熱媒體供應裝置33、冷卻媒體供應裝 置34之加熱媒體、冷卻媒體的送給管作開閉。媒體切換裝 置60之各開閉閥係藉由模具溫度控制裝置（加熱、冷卻時 序控制裝置）70，根據預先決定之程式而控制其開閉，將 往加熱媒體、冷卻媒體的熱媒體供應管321之供應、截斷 作切換。亦即，在將固定側模具13、可動側模具14加熱 時’係將以加熱媒體供應裝置33所加熱之加熱媒體送入熱 媒體供應管321，在將固定側模具13、可動側模具14冷卻 時，係將從冷卻媒體供應裝置34所供應之冷卻媒體送入熱 媒體供應管321。 如圖1、圖2所示般，接觸於固定侧模具13、可動側模具 14之腔面而配置著模具溫度感測器4〇。將以模具溫度感測 器40所檢測之模具溫度之信號傳送至模具溫度控制裝置 70 ° 又，如圖2所示般，在熱媒體供應管321係設有為了檢測 管内之熱媒體溫度的熱電對等熱媒體溫度感測器41、及為 了檢測熱媒體之壓力的壓力感測器4 2。將以此等熱媒體溫 度感測器41、壓力感測器42所檢測之熱媒體的溫度、壓力 之#號傳送至模具溫度控制裝置70。 在模具溫度控制裝置7〇方面，係根據以模具溫度感測器 4〇所檢測之模具溫度、及以熱媒體溫度感測器41、壓力感 14D094.doc 201031518 測器42所檢測之熱媒體的溫度、壓力，而控制媒體切換裝 置60’使加熱媒體供應裝置33、冷卻媒體供應裝置Μ之開 閉閥(無圖示則，而控制往熱媒體供應管32i之加熱媒 體、冷卻媒體的供應時序。 一連之射出成形周期中，模具溫度控制裝置70係執行根 據預先導人之電腦程式所衫的處理，藉由控制往熱媒體 供應管321之加熱媒體、冷卻媒體的供應，而進行以下所 示般之溫度控制。 圖3係顯不一連之射出成形周期中的溫度變化之圖。再 _ 者’此處’在射出成形控制裝置5〇方面，由於控制固定側 模具13、可動侧模具14之溫度（模具溫度），因此在圖3中係 顯示模具溫度之變化，但腔溫度亦實質上為等價。 在從鎖模起昇麼之步驟上，係'以模具溫度控制裝置70控 制媒體切換褒置60 ’將以加熱媒體供應裝置33所加熱之加 熱媒體送入熱媒體供應管321，將固定側模具】 模具14加熱。 j ❿ 然後，固定側模具13、可動側模具14之加熱後則開始 作在模具腔之溶融樹脂的射出，而模具腔藉由將固定側模 具13與可動側模具14鎖模而形成。其後，停止從加熱媒體 供應裝置33往熱媒體供應管321之加熱媒體的供應。加熱 媒體之供應停止係以模具溫度控制裝置70控制媒體切換裝 置60而進行。 在樹脂之射出結束的時點，亦可進行模具腔内之保壓。 射出〜保壓之間’固定側模具13、可動側模具14之溫度係 140094.doc -12· 201031518 伴隨加熱媒體的供應停止，藉由自然放熱而下降。 此後，移轉為固定側模具13、可動側模具14的冷卻。固 疋側模具13、可動側模具丨4的冷卻係以模具溫度控制裝置 70控制媒體切換裝置6〇，而將從冷卻媒體供應裝置34所供 應之冷卻媒體送入熱媒體供應管321。藉由冷卻媒體之送 入而固定側模具13、可動侧模具14係呈急冷。如固定側模 具13、可動侧模具14之温度下降，則以模具溫度控制裝置 攀 70控制媒體切換裝置60，而停止往熱媒體供應管321之冷 卻媒體的供應。 在樹脂冷卻固化，模具腔内形成成形品後，可動側模具 14係解開與固定側模具13之鎖模結合，作模具開啟。接 著進而，將可動側模具14藉由移動用之電動滾珠螺桿17 之工作而離開固定側模具13 ,取出成形品。 此後，藉由反覆與上述同樣之周期，則可將成形品作依 序射出成形。 •再者，在上述周期令，在冷卻之過程亦可進行退火等適 宜的熱處理。 然後，如圖4所示般，在本實施型態中藉由固定側模具 13、可動側模具14而形成之成形品，係具有凸形狀部A。 依據於此，在固定側模具丨3係形成凹部13 A，在可動側模 具14係形成有凸部14A。 凸邛14A係沿著其突出方向而將可動側模具“分割為複 數個。亦即，在可動側模具14中，凸形狀部A以外之腔面 係藉由在模具基底1安裝腔構件主體80而形成，相對的， 140094.doc 201031518 凸部14A係藉由沿著其突出方向將二以上之模具分割體 81A、81B、…層疊安裝於腔構件主體8〇而形成。在本實施 型態中，凸部14A係設為在與腔構件主體8〇呈一體化之模 具分割體81八安裝著三個模具分割體815、81(：、811)的構 成，但如其數為二以上的話，並無進行任何限定之意圖。 圖5係凸部14A為矩形剖面的情形之例，圖6係凸部14八 為圓形剖面的情形之例。 如圖5、圖6所示般，此等模具分割體81八、8ib 81C、...係各自為具有依據凸部14A之剖面形狀的剖面且具 有特定高度之區塊狀，在將此等模具分割體81A、81B、 成有用於形成呈連續之 其中，溝82係露出於模 81C、…作相互接合之狀態下，形 熱媒體通路30、31的溝82、孔83。 具分割體81A、81B、81C、…之接合面而形成，藉由與其他 模具分割體81A、81B、81C、···作接合而形成熱媒體通路Μ。 如圖7、圖8所示般，在模具分割體81八、8lB、8ic、 之各自的接合面85中，沿著其外周緣部，亦即，沿著在凸 部14A中形成腔表面之模具分割體81A、81B、81C、的 側面86與接合面85之境界部，係連續形成有突條π。又， 在接合面85中，沿㈣82之兩側的緣部係連㈣成有 88 ° 擴散接合法 由如下方式 二個模具分 ’並以預先 模具分割體81A、81B、81C、...係譬如藉由 而將其接合面群組相互接合。擴散接合法係藉 進行：在將預先決定之電壓施加於相互接合之 割體81A、81B或模具分割體81B、81C的同時 140094.doc 201031518 決定之按壓力（壓力）按壓一定時 合法於模具分割體81A、81B、81C 雖使用擴散接 可使用其他接合法取代其。 、.·.之接合，但當然亦 此等突條87、88係用於在將模具分割體ΜΑ、MB、 =、目互接合時確實進行其接合1由將接合部 限疋於突條87、88，則非僅接合部 -a— H 度的咼精度加工 變传谷易，亦可使電流集中於接合部之狹窄區域，在藉由 難以接合之材料群組的組合的接合上，亦可作高效率之加 熱、加壓。 基於如此之目的’突條87、88係以將其寬度w設為 2〇_為佳’更理想之尺寸則為卜5_，將其高度h 叹為0.02〜2 mm為佳，更理想之尺寸則為〇 〇5〜〇 2咖。 *如上述般’設為，將可動側模具“之凸部Μ藉由往其 突出方向層疊複數個模具分割體81A、8ib、He、…並接 合其接合面85而予以一體化’在各自之接合面85中沿著 其外周緣部與溝82之緣部而形成突條87、88。藉由此 式，在接合模具分割體81A、81B、8ic、時，在其接合 面85中，可將形成腔面之接合面85的外周緣部、與形成执 媒體通路31之溝82的緣料實接合。其結果為，在藉由接 合模具分割體81A、81B、81C、…而剛製作出可動側模具 14之後係理所當然，即使在反覆施加熱應力之長期使用 上’亦可防止模具分割體81A、81B、81C、.之接續線出 現於腔面，可避免接續線轉印於成形品而使成形品質下 降。又，可防止來自形成熱媒體通路31之溝82的部分之熱 140094.doc 15 201031518 媒體的外洩，可提高可動側模具14之耐久性。 再者’在上述實施型態方面’係將溝82之剖面形狀設為 半圓形’但其剖面形狀並無任何限定，亦可設為剖面矩形 等’其他形狀亦可。又，如圖9(a)所示般，如溝82係藉由 形成於相互對向之接合面85、85雙方而形成熱媒體通㈣ 亦可。 使形成於相互對向之接合面85、85雙方的溝82、82之剖 面形狀對接合面呈對稱形狀而設置的情形，相較於僅在相 互對應之接合面85、85之一方設有溝82的情形，在抑制各 模具分割體81A、81B、81C、…單體上之溫度分佈參差不 齊方面係有效。 由於模具分割體81A、81B、81C、…係僅在突條87、88 之部分接合，因此在相互對向之模具分割體81A、8iB、 81C、…之間的熱傳導係僅限於突條8<7、88之部分。又， 在藉由熱媒體之熱交換量方面，溝82之表面積係成為支配 性要因。因而’僅在相互對應之接合面85、85之_方設有 溝82的情形，在模具分割體81A、81B、81C、...之端面 上’設有溝82之側的面雖與熱媒體之熱交換變大，但由於 往對向的模具分割體81A、81B、81C、…之熱傳導不良， 因此與熱媒體之熱交換量變小。如此一來，在與模具分割 體81A、81B、81C、…的端面之間，以接合面為境界而發 生局部性溫度差。譬如，使加熱媒體流通於溝8 2之情形， 在設有溝82之側的模具分割體81A、81B、81C、...之端面 部方面，由於從熱媒體流入之熱量大，且往對向的模具分 140094.doc 16 201031518 割體81A、81B、81C、…之熱流出少，因此溫度之上昇量 大。然而，在對向的模具分割體81A、81B、81C、 μ ^ ·· ·上而 不具有溝82之端面方面，由於來自熱媒體的熱流入量少， 且來自對向的模具分割體81Α、81Β、81C、…之熱傳導量 亦小’因此溫度之上昇量小。201031518 VI. [Technical Field] The present invention relates to a method for manufacturing a mold for an injection molding machine, a mold split body, and a mold, and the injection molding machine uses water or steam as a heat medium. The mold is subjected to injection molding by heating and cooling. • [Prior Art] - The injection molding step of the injection molding machine. If the temperature of the mold is at a lower Φ t state, the surface of the molten resin filled in the cavity of the mold is rapidly solidified. At this time, the transfer of the cavity surface of the mold to the molded article is insufficient, and there is a case where a defect such as a weld line or a silver streak is formed on the surface of the molded article. In order to prevent this defect, a forming method is proposed in which, in the step of injection filling, pressure holding, cooling, and mold opening and closing, the heating medium is supplied to the medium passage of the mold until the resin is started to be filled. The mold is heated and the cooling medium is supplied to cool the mold during a period from a certain time after the start of the resin filling to the mold opening φ (for example, refer to Patent Document 1). Thereby, the molten resin can be filled in a mold which has been preheated to a temperature higher than the heat distortion temperature of the resin to delay the curing of the resin surface, and after the resin is filled, the mold can be cooled to a glass transition temperature or heat of the resin. w After the deformation temperature is below, 'open the mold, to suppress the occurrence of defects as described above. In general, when temperature control is actively performed using a heat medium for injection molding, in order to shorten the molding cycle, the temperature is rapidly increased and decreased. Therefore, the mold is formed by mounting the cavity member forming the cavity surface of the mold on the mold base, and arranging and forming a plurality of media passages at the bottom of the mold base 140094.doc 201031518 and the cavity member. . Further, in the case of a molded article having a convex shape partially, the heating and cooling structure in the convex portion has the same method as that of the convex portion A as shown in FIG. In the mold base, the cavity member 2 is mounted on the convex portion A, which is also formed with the media passage 3 on the alignment surface with the base of the mold. Also, there is the following method, #, as shown in Fig. 10(b) As shown in the figure, in addition to the convex shape portion, the cavity member 4 is mounted on the mold base, and the media groove 5 is formed for the convex portion A, and temperature control is performed by flowing the heat medium to the media groove 5. The cavity member 4 is formed with a medium passage 3 on the alignment surface with the mold base, and the medium groove 5 is located inside the convex portion 1 of the mold base. [Prior Art Document] [Patent Literature] [Patent Literature] [Patent Document 2] Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. No. 6-238728. In the convex shaped portion A, the cavity member 2 is easily attached and fixed to the mold base 1. As described in Patent Document 2, and attached to the mold, it is also proposed to divide the cavity member into a plurality of substrates as in the art. However, in the continuation of the plurality of cavity member groups, the handover is performed. The line may be exposed to the surface of the cavity, or the heating and cooling medium may be exposed from the internal media flow. Further, injection molding is to apply a plurality of products to the mold in a repeated manner to apply thermal and cooling thermal stresses to the mold. If there is insufficient joint at the joint and there is a defect due to poor joint, when the load has thermal stress, the defect plays the same role as the crack, and the defect spreads and the mold is broken, etc., In addition, in the structure shown in Fig. 10 (b), in the convex portion A and other portions, the heating and cooling structures are different, so that it is difficult to perform uniform heating and cooling. There is a problem to be solved due to the quality of the mold temperature distribution. The present invention is developed based on such technical problems to be solved. The object of the present invention is to provide a mold manufacturing method, a mold split body, and a mold which can improve the quality of a product and improve the durability of the mold. [Technical means for solving the problem] • The present invention developed according to the foregoing purpose - the manufacture of the mold The method is characterized in that it is used in an injection molding machine, and is used for manufacturing a mold for forming a molded article by injection molding; in the forming of the mold, the convex (four) toward the other side The mold protrudes, and the convex portion is formed in the silk product; the convex portion is formed by laminating and joining the mold divided bodies in the protruding direction, and the mold dividing system is divided into a plurality of portions along the protruding direction of the convex portion. When the group of the mold-dividing bodies to be laminated is joined, the ridges are formed in advance on the joint surface of at least one of the mold-knife cutter group, and the end portion of the dog strip is placed against the other mold-divided body. , joint mold 140094.doc 201031518 split body group. In this way, if the end portion is formed in the state of the other mold (four) before the ridge formed on at least one of the mold splits, the _ mold split body group can be surely connected in the ridge portion. The ridges are formed along the outer peripheral edge portion of the joint surface of the mold-dividing body: the outer peripheral edge portion of the joint surface of the mold-dividing body group, that is, the outer surface (cavity surface) of the convex portion can be surely joined. Prevent the splicing line of the mold group from appearing on the cavity surface. Further, if the ridge is formed along the groove formed on the joint surface, the joint portion is only a narrow region around the portion of the groove, and the surface of the joint surface can be easily improved once, and the joint surface is formed in the injection molding. A thermal media path for temperature adjustment of the mold. Thereby, it is possible to prevent the gap from being formed around the groove by joining outside the groove portion, so that the bonding around the groove can be surely performed, and the leakage of the heat medium from the heat medium passage can be prevented. At this time, it is preferable that the grooves formed on the joint surface are formed in a cross-sectional shape that is symmetrical with respect to the joint surface, both of which are opposed to each other. Further, this ridge is prevented from causing a joint failure of the joint defect by reliably performing the joining of the splicing line portions of the mold-dividing body group on the cavity surface. As a result, when the injection molding cycle is repeatedly performed and the mold is repeatedly heated and cooled, it is possible to prevent cracks from occurring in the joint portion of the mold-separated body group in the vicinity of the ridge due to thermal stress. It is also possible to form a ridge on the joint faces of both of the joined mold split bodies. Further, the ridges formed on one of the joint faces and the ridges formed on the other joint faces of 140094.doc 201031518 may be arranged to be shifted from each other. In this way, when the access panel is docked, the mold split body group can be prevented from deviating from the joint surface. It is preferable that the ridge is set to have a width of 〇 5 to 2 mm. A more desirable size of the width of the ridges is preferably from 0.05 to 0.2 mm. The mold can be formed into a plurality of molds in order to form a mold formed in the mold: the mold is formed by injection molding in order to divide the convex portion into a plurality of protrusions along the protruding direction of the convex portion. The molded article is formed with a convex shape portion. The mold is characterized in that: a groove is formed on the joint surface, and the joint surface is joined to a joint surface of another mold split body by a joining method such as a diffusion bonding method, and is formed in the injection molding. The heat medium passage for adjusting the temperature of the mold; and the ridges are formed along the outer peripheral portion and the groove of the joint surface. ,. This mold dividing system is extremely suitable for the above-described manufacturing method of the mold. The present invention may also be a mold characterized in that it is attached to an injection molding and is formed by injection molding to form a molded article; the mold includes: a fixed side mold fixed to the injection molding machine; and a movable side mold, It is mounted in a state opposite to the fixed side mold, and is installed to be accessible and away from the injection molding machine; the side of the fixed side mold and the movable side mold is formed to the other side of the fixed side mold and the movable side mold. a protruding portion and a convex portion formed on the forming stamp; the protruding portion is formed by laminating and joining the mold dividing body in the protruding direction; and the mold splitting system is divided into a plurality of portions along the protruding direction of the protruding portion; A dog strip is formed on the sigma surface of the mold-dividing group of the joined molds, and the mold split body group is joined in a state in which the front end portion of the ridge is pressed against the other mold split body. [Effects of the Invention] According to the present invention, the mold split body group is joined in a state in which the tip end portion of the protrusion formed on at least the joint surface of the mold split body is pressed against the other mold split body. In particular, in the portion of the ridge, the dog strip can be surely connected to the outer peripheral edge portion of the joint surface of the mold split body or along the groove formed on the joint surface, thereby preventing the joint in the mold split body group. The outer peripheral edge portion of the surface, that is, the outer surface of the convex portion (cavity surface), the appearance of the mold segment group, and the prevention of the outer surface of the heat medium from the heat medium passage. A heat medium passage for performing temperature adjustment of a mold at the time of injection molding. As a result, the quality of the product can be improved and the durability of the mold can be improved. [Embodiment] Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. Fig. 1 is a view for explaining the schematic configuration of an injection molding machine ig in the present embodiment. In the present embodiment, an example of using hot water is exemplified as the heating medium. As shown in Fig. 1, the mold clamping device of the injection molding machine 10 is provided with a fixed die plate 12 fixed to the base u and a fixed side mold 13 attached to the fixed die plate 12. The movable side mold 14 opposed to the fixed side die 13 is attached to the movable die plate 15 which is disposed opposite to the fixed die plate 12. The movable die plate 15 is guided on the guide rail 16 laid on the base 11 and can be moved in the opposite direction to the fixed die plate 12 via a linear bearing. The electric ball screw 17 is used for the movement of the movable die plate b 140094.doc 201031518 for mold opening and closing. A plurality of pull tabs (four) are disposed directly on the plunger 19, and the plurality of mold clamping oils (10) built in the fixed template 12 are folded. Each of the pull tabs 18 is connected to the feed template 15 . The end portion of the pull tab 18 has a bolt groove 18a, and the half-cut nut (10) disposed on the counter-mold side of the plate 15 is engaged with the bolt groove..., and the pull tab is fixedly restrained in the direction. Φ 13=yuan 2° is an electric drive method. The injection cylinder 21 having the nozzles that are in contact with the two sides of the fixed side mold-俨 is provided with the injection cylinder 21 in the rw, "" The output shafts of Tongda 22 and 22 are directly connected to the ball screw shaft & the second screw = shaft (four) is screwed together by Annon in the moving frame... For the ball screw nuts 25, 25. By means of a 乍 乍 synchronization (four) (four), the camera motor 22, the direction of the axis for forward and backward. The screwing screw 21b that is screwed into the discharge cylinder 21 to the injection cylinder 21 is rotated and driven by the rotation of the resin that is driven by the injection screw to drive the motor 26, and is plasticized.卩Injecting a few cylinders 21 The injection molding control device 5 follows the oil to the mold-locking hydraulic cylinder 12a, and transmits the program of the electric power generation 2 to transmit the working servomotors 22 and 22, so that the injection of the unit 2 is discharged. To the shot of the injection screw 2lb; lb for the advance and retreat 'transmission of the plastic can be plasticized. "Turning the drive motor 26 to indicate the resin 14 〇 094.doc 201031518 The injection unit 2G causes the molten resin to be ejected into the mold cavity formed by the mold clamping of the solid mold by the movable side mold 14. The molded product is solidified by cooling. Then, the movable side mold 14 is released from the mold clamping of the fixed side mold 13, and is separated from the fixed side tool 13' by the operation of the electric ball screw 17 for movement to be a take-out molded product. The movable side mold 14 is formed with heat medium passages 3, 31 for heating and cooling the surface of the mold. In order to quickly transfer heat, the mold cavity surface is rapidly heated and cooled, and the heat medium passages 3, 3 are formed. Positioned as close as possible to the mold cavity. Then, the heat medium passages 30 31 are each connected to a heat medium supply pipe 321 for feeding the heat medium to the heat medium passages 30, 31 from the outside, and for the heat medium. The passage (10), η heat medium discharge pipe 32 that discharges the heat medium to the outside. As shown in Fig. 2, the heat medium supply pipe 321 is connected to the heating medium supply device 33 that supplies the heating medium, and the supply cooling The cooling medium supply device 34. In the present embodiment, the heating medium and the cooling medium use water (liquid). The heating medium supply unit 33 passes the heating medium through the heat medium supply tube by a pump (not shown). 321 is fed into the heat medium passages 30, 31, and the heating medium passing through the heat medium passages 30, 31 is circulated to the heating medium supply unit 33 through the heat medium discharge pipe 32. The cooling medium supply device 3 4 is not illustrated In the pump, the cooling medium is sent to the heat medium passages 30, 31 through the heat medium supply pipe 321, and the cooling medium passing through the heat medium passages 30, 31 is circulated to the cooling medium supply device 34 through the heat medium discharge pipe 320. 140094.doc -10· 201031518 The heating medium supply device 33 and the cooling medium supply device 34 are connected to the media switching device 60. In the media switching device 60, in order to switch the hot medium supplied to the heat medium supply pipe 321, An opening and closing valve (not shown) is provided, which can respectively open the feeding tube from the heating medium supply device 33, the heating medium of the cooling medium supply device 34, and the cooling medium. Each of the opening and closing valves of the medium switching device 60 is controlled by a mold temperature control device (heating and cooling timing control device) 70 to open and close according to a predetermined program, and the heat medium supply pipe 321 to the heating medium and the cooling medium is closed. The supply and the cutting are switched. That is, when the fixed side mold 13 and the movable side mold 14 are heated, the heating medium heated by the heating medium supply unit 33 is sent to the heat medium supply tube 321 at the fixed side mold. 13. When the movable side mold 14 is cooled, the cooling medium supplied from the cooling medium supply device 34 is sent to the heat medium supply pipe 321. As shown in Fig. 1 and Fig. 2, the fixed side mold 13 and the movable side mold are contacted. A mold temperature sensor 4 is disposed on the cavity surface of 14. The signal of the mold temperature detected by the mold temperature sensor 40 is sent to the mold temperature control device 70 °. As shown in FIG. 2, the heat medium supply pipe 321 is provided with a thermoelectricity for detecting the temperature of the heat medium in the tube. A peer-to-peer thermal medium temperature sensor 41, and a pressure sensor 42 for detecting the pressure of the thermal medium. The temperature and pressure # of the heat medium detected by the heat medium temperature sensor 41 and the pressure sensor 42 are transmitted to the mold temperature control device 70. In the mold temperature control device 7A, based on the mold temperature detected by the mold temperature sensor 4, and the heat medium detected by the heat medium temperature sensor 41, the pressure sense 14D094.doc 201031518 The temperature and pressure are controlled to control the medium switching device 60' to open and close the heating medium supply device 33 and the cooling medium supply device (not shown, and control the supply timing of the heating medium and the cooling medium to the heat medium supply pipe 32i. In the one-shot injection molding cycle, the mold temperature control device 70 performs the process of controlling the heating medium and the cooling medium to the heat medium supply pipe 321 according to the processing of the computer program in advance, and performs the following. Temperature control Fig. 3 is a diagram showing the temperature change in the injection molding cycle. In addition, in the injection molding control device 5, the temperature of the fixed side mold 13 and the movable side mold 14 is controlled. (Mold temperature), so the change in mold temperature is shown in Figure 3, but the chamber temperature is also substantially equivalent. On the step of lifting from the mold clamping, 'The medium switching device 60 is controlled by the mold temperature control device 70', and the heating medium heated by the heating medium supply device 33 is sent to the heat medium supply pipe 321, and the fixed side mold is heated. j ❿ Then, the fixed side mold 13. After the heating of the movable side mold 14, the injection of the molten resin in the mold cavity is started, and the mold cavity is formed by clamping the fixed side mold 13 and the movable side mold 14. Thereafter, the heating medium supply device is stopped. The supply of the heating medium to the heat medium supply pipe 321 is performed. The supply stop of the heating medium is performed by the mold temperature control device 70 controlling the medium switching device 60. At the time when the injection of the resin is finished, the pressure holding in the mold cavity can also be performed. Between the injection and the holding pressure, the temperature of the fixed side mold 13 and the movable side mold 14 is 140094.doc -12· 201031518. The supply of the heating medium is stopped, and the heat is lowered by the natural heat release. Thereafter, the mold is transferred to the fixed side mold 13 Cooling of the movable side mold 14. The cooling of the fixed side mold 13 and the movable side mold 4 controls the medium switching device 6 by the mold temperature control device 70, The cooling medium supplied from the cooling medium supply device 34 is sent to the heat medium supply pipe 321. The fixed side mold 13 and the movable side mold 14 are quenched by the feeding of the cooling medium, such as the fixed side mold 13, the movable side mold. When the temperature of 14 is lowered, the medium switching device 60 is controlled by the mold temperature control device 70 to stop the supply of the cooling medium to the heat medium supply pipe 321, and the movable side mold 14 is formed after the resin is cooled and solidified to form a molded article in the mold cavity. The mold is opened by the mold clamping of the fixed side mold 13 and the mold is opened. Then, the movable side mold 14 is separated from the fixed side mold 13 by the operation of the electric ball screw 17 for movement, and the molded product is taken out. Thereafter, by repeating the same cycle as described above, the molded article can be injection molded in order. • In addition, in the above cycle, an appropriate heat treatment such as annealing may be performed during the cooling process. Then, as shown in Fig. 4, the molded article formed by the fixed side mold 13 and the movable side mold 14 in the present embodiment has a convex shaped portion A. According to this, the fixed side mold 丨 3 is formed with the concave portion 13 A, and the movable side mold 14 is formed with the convex portion 14A. The tenon 14A divides the movable side mold into a plurality of portions along the protruding direction thereof. That is, in the movable side mold 14, the cavity surface other than the convex portion A is mounted on the mold base 1 by the cavity member main body 80. In contrast, 140094.doc 201031518 The convex portion 14A is formed by laminating two or more mold split bodies 81A, 81B, ... in the protruding direction of the cavity member main body 8A. In this embodiment, The convex portion 14A is configured such that three mold divided bodies 815 and 81 (:, 811) are attached to the mold divided body 81 that is integrated with the cavity member main body 8A. However, if the number is two or more, Fig. 5 is an example of a case where the convex portion 14A has a rectangular cross section, and Fig. 6 is an example of a case where the convex portion 14 has a circular cross section. As shown in Figs. 5 and 6, the molds are as shown in Figs. Each of the divided bodies 81, 8b, 81C, ... is a block having a cross section according to the sectional shape of the convex portion 14A and having a specific height, and the mold split bodies 81A, 81B are formed to be continuous. Among them, the grooves 82 are exposed to the molds 81C, . . . The grooves 82 and the holes 83 of the shaped heat medium passages 30 and 31 are formed by the joint faces of the divided bodies 81A, 81B, 81C, ..., and are joined to the other mold split bodies 81A, 81B, 81C, . As shown in Fig. 7 and Fig. 8, in the joint faces 85 of the mold split bodies 81, 8lB, and 8ic, along the outer peripheral edge portion thereof, that is, along the convex portion The boundary portion between the side surface 86 of the mold-dividing bodies 81A, 81B, and 81C and the joint surface 85 forming the cavity surface in the portion 14A is continuously formed with the ridges π. Further, in the joint surface 85, the edges on both sides of the (four) 82 are formed. The joint system (4) has a 88 ° diffusion bonding method in which two molds are divided as follows and the joint mold groups 81A, 81B, 81C, ... are joined to each other by, for example, by joining the joint groups. It is legally carried out: when a predetermined voltage is applied to the mutually joined cutting bodies 81A, 81B or the mold split bodies 81B, 81C, and the pressing force (pressure) determined by 140094.doc 201031518 is legally applied to the mold split body 81A. , 81B, 81C, although using diffusion, can be replaced by other bonding methods. The joining of the joints, but of course, the ridges 87, 88 are used to make the joints 1 when the mold split bodies MB, MB, =, and the eyes are joined to each other, and the joints are limited to the ridges 87. , 88, the joint precision of the joint-a-H degree is not changed, but the current can be concentrated in the narrow area of the joint, and also by the combination of the combinations of the materials that are difficult to join. It can be used for high-efficiency heating and pressurization. For this purpose, the ridges 87 and 88 are set to have a width w of 2 〇 _ better than the ideal size, and the height h is 0.02. ~ 2 mm is better, and the more ideal size is 〇〇5~〇2 coffee. * As described above, the convex portion of the movable side mold is integrated by laminating a plurality of mold split bodies 81A, 8ib, He, ... in the protruding direction and joining the joint faces 85. In the joint surface 85, the ridges 87 and 88 are formed along the outer peripheral edge portion and the edge of the groove 82. By this formula, when the mold split bodies 81A, 81B, and 8ic are joined, the joint surface 85 can be The outer peripheral edge portion of the joint surface 85 forming the cavity surface is joined to the edge of the groove 82 forming the medium passage 31. As a result, it is just produced by joining the mold split bodies 81A, 81B, 81C, ... The movable side mold 14 is of course taken care of, and even if the long-term use of the thermal stress is repeatedly applied, the joint line of the mold-dividing bodies 81A, 81B, 81C, and the like can be prevented from appearing on the cavity surface, thereby preventing the transfer line from being transferred to the molded article. Further, it is possible to prevent the leakage of the heat from the portion of the groove 82 forming the heat medium passage 31, and to improve the durability of the movable side mold 14. Further, in the above embodiment Aspect' is to set the shape of the groove 82 The semicircular shape is not limited in any way, and may be a shape such as a cross-sectional rectangle or the like. Further, as shown in Fig. 9(a), the grooves 82 are formed by opposing each other. The heat medium may be formed by the joint surfaces 85 and 85. The cross-sectional shape of the grooves 82 and 82 formed on the mutually opposing joint surfaces 85 and 85 may be symmetrically formed on the joint surface. The case where the groove 82 is provided only in one of the joint faces 85 and 85 corresponding to each other is effective in suppressing the uneven temperature distribution on each of the die split bodies 81A, 81B, 81C, .... Since the die split body 81A 81B, 81C, ... are joined only in the portions of the ridges 87, 88, so the heat conduction between the mutually opposing mold split bodies 81A, 8iB, 81C, ... is limited to the portions of the ridges 8 <7, 88 Further, in terms of the amount of heat exchange by the heat medium, the surface area of the groove 82 becomes a dominant factor. Therefore, the groove is formed only in the case where the grooves 85 are formed on the joint faces 85 and 85, respectively. On the end faces of 81A, 81B, 81C, ..., the surface on the side where the groove 82 is provided is The heat exchange of the heat medium is increased, but the heat transfer between the opposing mold split bodies 81A, 81B, 81C, ... is poor, so that the amount of heat exchange with the heat medium is reduced. Thus, the mold split bodies 81A, 81B are formed. Between the end faces of 81C, ..., a local temperature difference occurs with the joint surface as a boundary. For example, when the heating medium is circulated in the groove 8 2, the mold split bodies 81A, 81B, 81C on the side where the groove 82 is provided In terms of the end face, the amount of heat that flows in from the heat medium is large, and the amount of heat rises is large when the mold is divided into 140094.doc 16 201031518. The body 81A, 81B, 81C, ... have less heat outflow. . However, in the opposite end faces of the mold split bodies 81A, 81B, 81C, and the like, the heat transfer amount from the heat medium is small, and the opposing mold split bodies 81 are The heat transfer of 81Β, 81C, ... is also small, so the amount of temperature rise is small.
相對於此，藉由使形成於相互對向之接合面85、85雙方 的溝82、82之剖面形狀對接合面呈對稱形狀而設置，而可 使與熱媒體的熱交換在相互對向的模具分割體8ια、 81Β、81C、…之接合部中為同一，因此在對向的模具分割 體81A、81B、81C、…群組方面，與熱媒體的熱交換量係 相等，對接合面呈對稱之熱交換係成為可能，可防止在接 合部之局部性溫度差的發生。 在突條87、88方面，如設為在相互對向之接合面85、85 中僅形成於-方亦可，形成於雙方亦可。該情形，係如圖 9(b)所示般’如形成於相互對向的接合面85、^之一方的 突條87A、88A、與形成於另—方的突條87b、議以成為 相互錯開之方式作相互偏移而形成亦可。如採取此方式， 在使模具分割體81A、81B、81C、.··群組接合之前將接合 面85、85群組作對接時，可料進行其定位。 又’設為如下者亦可：使突條Pi在相互對向的接合 面85、85中僅形成於—方，在相互對向的接合面85、85之 另-：，形成依據突條87、88之剖面形狀的溝。此一情 二系以設定為與突條87、88之高度_-句 “ .〇2〜2 _為佳，更理想之尺寸則為0.05〜0.2 _。 140094.doc -17- 201031518 又’突條87、88之剖面形狀亦不限於以上述實施型離所 示之矩形狀，如設為台形狀、三角形狀等亦可。進而，突 條87、88並不限於一條，如將複數條作並列設置亦可如 圖9(c)所示般，設為梳齒狀亦可。 進而，在上述實施型態中針對突條87、88之寬度w、高 度h已顯示理想之範圍，但依據材質 '通電電壓&、按$ 力、按壓時間等，該範圍係可變。 又，針對射出成形機H)之全體的構成，係僅顯示其基本 之構成而已’如作適宜變更亦可。譬如，就熱媒體而言， 亦可使用水以外之液體、蒸氣、空氣等氣體。 除此之外，只要不脫離本發明之主旨，則亦可將以上述實 施型態所舉出之構成作取捨選擇’或適宜變更為其他構成。 [檢討例] 此處，由於針對突條87、88之寬度w、高度h的最佳範圍 已進行檢討’因此顯示其結果。 模具分割體81A、81B、81C、…係設為直徑7〇 mm之刮 面圓形且高度30 mm、作為材質係使用日立金屬有限公司 製之HPM 38材、UDDEHOLM公司製之STAVAX材二種。 在模具分割體81A、81B、81C、…之接合面85係如圖8 所不般形成溝82，沿著接合面85之外周緣部、與溝82之緣 邛，將突條87、88以表1所示之寬度w、高度h形成。 然後，在將100 V之電壓施加於二個模具分割體81 A、 81B的同時，以50 MPa之按壓力按壓1〇分鐘藉由擴散接 合法進行接合，而製得供試體。 140094.doc 201031518 接合後，以1000°C之溫度進行供試體之韌化，並進行供 試體之應力減緩、機械性強度的調整處理。 此後，如圖8(b)所示般，將供試體以包含其中心軸線之 剖面予以切斷•研磨，觀察其切斷面。將藉由觀察，在接 合面看不見間隙者設為「〇」，部分可見0.05 mm以上之間 隙者設為「A」，全體可見間隙，接合不完全者設為「X」， 並將觀察結果顯示於表1。On the other hand, by providing the cross-sectional shapes of the grooves 82 and 82 formed on the mutually opposing joint faces 85 and 85 in a symmetrical shape with respect to the joint surface, heat exchange with the heat medium can be made to face each other. Since the joint portions of the mold-dividing bodies 8α, 81Β, 81C, ... are the same, the heat exchange amount with the heat medium is equal to the group of the opposing mold split bodies 81A, 81B, 81C, ..., and the joint surface is A symmetrical heat exchange system is possible to prevent local temperature differences at the joint. In the case of the ridges 87 and 88, the joint faces 85 and 85 which are opposed to each other may be formed only in the square, and may be formed on both sides. In this case, as shown in Fig. 9(b), the protrusions 87A and 88A formed on one of the joint faces 85 and the other side are formed, and the protrusions 87b formed on the other side are mutually The staggered manner may be formed by offsetting each other. In this manner, when the joint faces 85, 85 are brought into abutment before the mold split bodies 81A, 81B, 81C, . . . are joined, the positioning can be performed. Further, the ridges Pi may be formed only on the joint faces 85 and 85 that face each other, and the other faces of the joint faces 85 and 85 that face each other may be formed by the ridges 87. , the groove of the cross-sectional shape of 88. This is the second set to be the height of the spurs 87, 88 _-sentence ". 〇 2~2 _ is better, the more ideal size is 0.05~0.2 _. 140094.doc -17- 201031518 The cross-sectional shape of the strips 87 and 88 is not limited to the rectangular shape shown by the above embodiment, and may be a table shape, a triangular shape, or the like. Further, the ridges 87 and 88 are not limited to one, for example, a plurality of strips are used. The parallel arrangement may be a comb-tooth shape as shown in Fig. 9(c). Further, in the above-described embodiment, the width w and the height h of the ridges 87 and 88 are displayed in a desired range, but The range of the material injection voltage &, force, pressing time, etc. is variable. Further, the configuration of the entire injection molding machine H) is merely shown as a basic configuration, and may be appropriately changed. For example, in the case of a heat medium, a gas such as a liquid, a vapor, or an air other than water may be used. In addition, the configuration exemplified in the above embodiment may be used without departing from the gist of the present invention. Choose a choice 'or change to another composition. [Review example] Here, due to The optimum range of the width w and the height h of 87 and 88 has been reviewed. Therefore, the results are shown. The mold split bodies 81A, 81B, 81C, ... are set to have a scraping surface diameter of 7 mm and a height of 30 mm. The material is made of HPM 38 material manufactured by Hitachi Metal Co., Ltd. and STAVAX material manufactured by UDDEHOLM Co., Ltd. The joint surface 85 of the mold split bodies 81A, 81B, 81C, ... is formed as a groove 82 as shown in Fig. 8 along The outer peripheral portion of the joint surface 85 and the edge of the groove 82 form the ridges 87 and 88 at a width w and a height h as shown in Table 1. Then, a voltage of 100 V is applied to the two mold split bodies 81. At the same time as A and 81B, the test piece was prepared by pressing at a pressure of 50 MPa for 1 minute by diffusion bonding. 140094.doc 201031518 After bonding, the toughness of the test body was performed at a temperature of 1000 ° C. And the stress reduction of the test piece and the adjustment of the mechanical strength are performed. Thereafter, as shown in Fig. 8(b), the test piece is cut and polished with a section including the central axis thereof, and the cut is observed. Section. By observation, the gap is not visible on the joint surface. Set by part of the visible gap "A" between more than 0.05 mm, all the visible gap, set by incomplete joining "X", and the observation results are shown in Table 1.
[表1][Table 1]
材質 突條 評價 〇...無間隙 A...部分具有間隙 X...有間隙 寬度[mm] 高度[mm] 凸部 凸部 以外 全體 _評價 無突條部 隨處可見間隙 HPM38 0.3 0.05 Δ Δ Δ 1 0.05 〇 〇 〇 3 0.05 Δ Δ Δ 1 0.2 〇 〇 〇 5 0.2 〇 〇 〇 3 0.25 〇 Δ Δ 1 0.3 Δ Δ Δ 3 2.5 〇 X X 25 2.5 Δ X Δ STAVAX 無突條部 隨處可見間隙 3 0.01 Δ Δ Δ 0.3 0.05 〇 Δ Δ 1 0.05 〇 〇 〇 5 0.05 〇 〇 〇 5 0.2 〇 〇 〇 3 0.25 〇 Δ Δ 1 0.3 Δ Δ Δ 如表1所示般，可確認，無論在HPM38材、STAVAX材中 任一方，係以將突條87、88之寬度w設為0.5〜20 mm，將 高度h設為0.02~2 mm為佳。 140094.doc -19· 201031518 【圖式簡單說明】 圖1係顯示本實施型離中 主t〒之射出成形機的全體構成之 圖； 圖2係顯示用於進行射出成形機之模具的溫度調整之 成之圖； 圖3係顯示模具的溫度調整例之圖； 圖4係本實施型態中之模具的剖面圖； 圖5係顯示凸部為矩形剖面的情形之模|分割體的立體 展開圖； 圖6係顯不凸部為圓形剖面的情形之模具分割體的立體 展開圖； 圖7係顯示形成於矩形剖面之模具分割體的接合面之突 條的立體剖面圖； 圖8(a)、（b)係顯示形成於圓形剖面之模具分割體的接合 面之突條的立體剖面圖及縱剖面圖； 圖9(a)-(c)顯示模具分割體的應用例之圖；及 圖10(a)、（b)係顯示先前之用於進行模具的溫度調整之 構成之圖。 【主要元件符號說明】 10 射出成形機 12 固定模板 13 固定側模具 14 可動側模具 14A 凸部 140094.doc -20· 201031518 15 可動模板 20 射出單元 30 ' 31 熱媒體通路 33 加熱媒體供應裝置 34 冷卻媒體供應裝置 50 射出成形控制裝置 60 媒體切換裝置 70 模具溫度控制裝置 80 腔構件主體 81A、81B、81C 模具分割體 82 溝 83 孔 85 接合面 87、88 突條 140094.doc -21 -Material ridge evaluation 〇... No gap A... Part has clearance X... Width of gap [mm] Height [mm] Whole of convex part of convex part _ Evaluation without gaps everywhere HPM38 0.3 0.05 Δ Δ Δ 1 0.05 〇〇〇3 0.05 Δ Δ Δ 1 0.2 〇〇〇5 0.2 〇〇〇3 0.25 〇Δ Δ 1 0.3 Δ Δ Δ 3 2.5 〇XX 25 2.5 Δ X Δ STAVAX No gaps visible anywhere without gaps 3 0.01 Δ Δ Δ 0.3 0.05 〇 Δ Δ 1 0.05 〇〇〇 5 0.05 〇〇〇 5 0.2 〇〇〇 3 0.25 〇 Δ Δ 1 0.3 Δ Δ Δ As shown in Table 1, it can be confirmed that both HPM38 and STAVAX In any of the materials, the width w of the ridges 87 and 88 is set to 0.5 to 20 mm, and the height h is preferably 0.02 to 2 mm. 140094.doc -19· 201031518 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the overall configuration of an injection molding machine of the present embodiment, and Fig. 2 is a diagram showing temperature adjustment of a mold for performing an injection molding machine. Fig. 3 is a view showing a temperature adjustment example of the mold; Fig. 4 is a cross-sectional view of the mold in the present embodiment; Fig. 5 is a view showing a mode in which the convex portion is a rectangular cross section; Fig. 6 is a perspective exploded view showing a mold split body in a case where a non-convex portion is a circular cross section; Fig. 7 is a perspective cross-sectional view showing a ridge formed on a joint surface of a mold split body having a rectangular cross section; a) and (b) are a perspective cross-sectional view and a longitudinal cross-sectional view showing a ridge formed on a joint surface of a mold-divided body having a circular cross-section; and Figs. 9(a)-(c) are views showing an application example of a mold split body. And Fig. 10 (a) and (b) show the structure of the previous temperature adjustment for the mold. [Main component symbol description] 10 Injection molding machine 12 Fixed template 13 Fixed side mold 14 Movable side mold 14A Projection 140094.doc -20· 201031518 15 Movable template 20 Injection unit 30 ' 31 Thermal medium passage 33 Heating medium supply unit 34 Cooling Media supply device 50 Injection molding control device 60 Media switching device 70 Mold temperature control device 80 Cavity member main bodies 81A, 81B, 81C Mold split body 82 Groove 83 Hole 85 Joint surface 87, 88 Bump 140094.doc -21 -