200824886 九、發明說明： 【發明所屬之技術領域】 本發明Μ於—種射出成形卫具用之射出成形喷嘴 ⑽’具有-材料管（14)，及—加熱件（32)，該材料管中至 少形成-條流動通道(20)以供一種可流動料流動，該加軌 件（32)用於將該可流動材料加熱。 … 【先前技術】200824886 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to an injection molding nozzle (10) for injection molding a sanitary ware having a material tube (14) and a heating member (32) in which the tube is At least one flow passage (20) is formed for flow of a flowable material, and the rail member (32) is used to heat the flowable material. ... [prior art]
射出成形噴嘴用於射出形工具(模具)中，以將一可流 動勺物料(例如一塑膠熔融物)在一可預定的溫度在高壓下 ^到一可分離的模嵌入物（Formeinsatz，英：mould -。 ^些射出成形噴嘴大多具有—材料管，它有-流動通道， :止：：噴嘴口件中。後者-端構成-噴嘴出口開口，它 經一免鑄開口而開口於模嵌人物[模座⑽職中 :該：流動物料在材料管中不會提前冷却，故設有二 ^匕i伸入喷嘴口件進去，俾使溫分佈儘量平均。 EP^° 027 617 J 良導熱材料構成，該匣被推到材料管上，則 :乎I伸過材料管的整個軸向長度範圍。€的壁中形成一 :::^¥線圈’與流動通道共軸，它經由匣將熱能放出到 :、吕。為了將放出到個別之軸向材料管部段的熱能改 =加熱導線圈的個別繞圈的斜升度（螺距）可依需要而選 不1^螺距越小，越多能量放出到相關之軸向材料管 ::::如不採此"，如果，舉例而言，不想要有或不可 I a加熱件時’則該加熱件也可設計成一管路件，它可 6 200824886 被一熱媒（如水或油）流過。 在此EP-A-1 927 617所發表的加熱件的一問題在於： 該材料管與加熱件須互相準確相對定位，俾經由加熱件將 所要熱能送到各軸向材料管部段，其中此相對定位作用在 熱通道噴嘴操作之時不得改變。反之，如果加熱件沿軸向 向材料管移動（例如由於熱通道喷嘴的個別構件的不同熱脹 係數所致），則材料管部段不再能規則地調節，因此不能確 保熱通迢噴嘴無誤地操作。加熱件只要相對於材料管作幾 就已經會出問題，因為有許多加工的塑 膠對溫度變動的反應很敏感。 為了監控實際溫度，一般使用溫度感測器，它們將喷The injection molding nozzle is used in an injection molding tool (mold) to feed a flowable spoon material (for example, a plastic melt) to a separable mold insert at a predetermined temperature under high pressure (Formeinsatz, English: Mould -. Some of the injection molding nozzles have a - material tube, which has a - flow channel, : stop:: the nozzle mouth piece. The latter - end constitutes - the nozzle outlet opening, which opens into the molded figure through a cast-free opening [Mould seat (10) in the middle: This: the flowing material will not be cooled in advance in the material tube, so it is provided that the two nozzles are inserted into the nozzle port, and the temperature distribution is as even as possible. EP^° 027 617 J Good thermal conductive material Constructed, the crucible is pushed onto the material tube, then: I extends over the entire axial length of the material tube. The wall of the €::: ^ coil is coaxial with the flow channel, which transfers heat via the crucible Released to: Lu. In order to change the thermal energy released to the individual axial material tube sections = the inclination of the individual windings of the heating coil (pitch) can be selected as needed. The smaller the pitch, the more The energy is released to the relevant axial material tube:::: If this is not taken, if For example, if you do not want to have or do not heat the heating element, then the heating element can also be designed as a pipe piece, which can be passed through a heat medium (such as water or oil) in 200824886. Here EP-A-1 A problem with the heating element disclosed in 927 617 is that the material tube and the heating element have to be accurately positioned relative to each other, and the desired heat energy is sent to the axial material tube sections via the heating element, wherein the relative positioning acts on the hot channel nozzle. The operation must not be changed. Conversely, if the heating element moves axially toward the material tube (for example due to the different thermal expansion coefficients of the individual components of the hot runner nozzle), the material tube section can no longer be regularly adjusted and therefore cannot Make sure that the heat-passing nozzle is operated without errors. The heating element can only be problematic with respect to the material tube, because many processed plastics are sensitive to temperature changes. In order to monitor the actual temperature, a temperature sensor is generally used. They will spray
DE-U-201 〇〇 不利影響。 呈分別的元件形式放入噴嘴體或 。此處還有一問題··溫度感測器 就會造成相當的測量誤差，這對 cierbarkeit，英：reproducibility)有 【發明内容】DE-U-201 不利 Adverse effects. Place the nozzle body or in the form of separate components. There is still a problem here... The temperature sensor will cause considerable measurement error, which is for cierbarkeit, English: reproducibility) [invention]
Λ材料管中至少形成一條流動通 之射出成形噴嘴，具有 7 200824886 2:供一種可流動料流動，該加熱件用於將該可流動材料 依本發明’該加熱件沿軸向相對於該材料管設在一預 疋位置’其中至少設有一 作時維持此預定位置。緊手在該射出成形喷嘴操 二：防止由於構件與溫度有關的熱脹冷 1=料管沿轴向作相對移動的情事。用此方式可確伴在、 ^ =形喷嘴操作時’該經由加熱件供入個別轴向材= W段中的熱能不會不當地改變。 /y =們很/月楚，該夹緊手段的準確構造以及其在射出 別：：：、内係與射出成形喷嘴本身的構造有關^ ^/料官、加熱件及射出成形噴嘴殼體的構造或幹軸 设置有關，這點在下文還要配合圖式說明。匕戈幹軸 但所用之加熱件宜為£狀，繞著材料管外周圍 =㈣管均勻加熱。舉例而言，加熱件可為一… 導熱材料（如銅或黃銅）構成， 由良 /軸向長度，且其壁中形成vr 過材料管整個 路，：流動通道成共軸。該材料管與加熱件宜： 在本發…： 具之間造成良好熱絕緣。 熱件之間：1中加“Γ:，爽緊手段設在材料管與加 部撞住。在該圍住材料管的殼體上被-止擋 ^ : “例中’夹緊手段設在殼體與加埶件之門 因此加熱件在材料管上被—止擋部播住。4之間， 8 200824886 —該至少-夾緊手段宜為一彈簧，特別是—環形彈菁。 它將加熱件沿射出成形噴嘴的軸向預夾緊。在此，舉例而 言，夾緊手段一邊頂向材料管一區域，另一邊頂向力牛口 = :區域中該夹緊手段將加熱件㈣向—止擔部。此止 才s。卩將加熱件與材料管沿軸向互相作恆定的相對定位。 此外，該射出成形喷嘴宜至少有一溫度感測器，它為 了溫度調節的目的，將射出成形喷嘴内的—實際溫度檢 出。在此，該溫度感測器宜固定在加熱件上在材料管的二 區域中/此在射出成形喷嘴操作時，連溫度感測器^ 於材料管的位置也由於夾緊手段而保持恆定。 以下配合圖式詳細說明本發明的射出成形噴嘴的一每 施例。 、 、 【實施方式】 圖式中整體用（1〇)表示的射出成形喷嘴係使用在一射 出成形裝置中，該射出成形裝置用於由一可流動物料〜— ^ 例如—塑膠熔融物——製造模製件。此射出成形裝置—般 有一夾緊板（Aufspannplatte)(圖未示）及一平行於該失緊板 的分配板（同樣未作圖示），在分配板中形成一流動通道系 統。這些流動通道開口於數個射出成形喷嘴（1〇)中，這此 射出成形喷嘴舉例而言，係設計成熱通道噴嘴方式，且各 用一殼體（12)安裝在分配板下側。 射出成形噴嘴（10)包含一材料管（14)，其上端設有一突 緣式接頭（16)。此接頭以可鬆開的方式位在殼體（12)中。一 沿徑向形成的階段（18)將殼體（12)以及射出成形噴嘴在射出 9 200824886 成形裝置中對準中心。 在=徑…伸的材料管⑽内，*中央放入一流 運（）以供塑㈣融物流動°此流動通道（20)[它宜設 计成孔形式]在接頭（16)中有一 虿材枓供應開口（22)且其下端 開口到一喷嘴口件（24)， ,κ ,,. 贺鳥口件舉例而言，設計成喷Forming at least one flow-through injection molding nozzle in the material tube having 7 200824886 2: for a flowable material for the flowable material according to the invention, the heating element is axially opposed to the material The tube is maintained in the pre-twisted position 'where at least one of the positions is maintained. Tight hand in the injection molding nozzle operation 2: to prevent thermal expansion and contraction due to the temperature of the member 1 = relative movement of the material tube in the axial direction. In this way, it is true that when the ^ = nozzle is operated, the heat energy supplied to the individual axial members via the heating member = W segment does not change unduly. /y = They are very / month, the exact structure of the clamping means and its injection in the :::, the internal system and the construction of the injection molding nozzle itself ^ ^ / material officer, heating element and injection molding nozzle housing The construction or dry axis settings are relevant, which will be explained below in conjunction with the drawings.匕戈干 axis But the heating element used should be in the shape of a note, around the outer tube of the material tube = (four) tube evenly heated. For example, the heating element may be constructed of a thermally conductive material (such as copper or brass) having a good/axial length and forming a vr through the material tube in its wall: the flow channels are coaxial. The material tube and heating element should: cause good thermal insulation between the present...: Between the hot parts: 1 plus "Γ:, the cooling method is set in the material tube and the loading part is hit. On the housing surrounding the material tube is - stop ^: "In the example, the clamping means is set in The housing and the door of the twisting member are thus carried by the stop on the material tube. Between 4, 8 200824886 - the at least - clamping means is preferably a spring, in particular - a ring-shaped elastic. It pre-clamps the heating element in the axial direction of the injection forming nozzle. Here, for example, the clamping means is directed toward a region of the material tube, and the other side is directed toward the force cow mouth =: in the region, the clamping means directs the heating member (4) to the stop portion. This is only s. The constant positioning of the heating element and the material tube in the axial direction is constant. Further, the injection molding nozzle preferably has at least one temperature sensor which detects the actual temperature in the injection nozzle for the purpose of temperature adjustment. Here, the temperature sensor is preferably fixed to the heating element in the two regions of the material tube / when the injection forming nozzle is operated, the position of the temperature sensor in the material tube is also kept constant by the clamping means. Each of the injection molding nozzles of the present invention will be described in detail below with reference to the drawings. [Embodiment] The injection molding nozzle shown as a whole (1〇) in the drawings is used in an injection molding apparatus for producing a flowable material ～^, for example, a plastic melt. Manufacturing molded parts. The injection molding apparatus generally has a clamping plate (not shown) and a distribution plate (also not shown) parallel to the biasing plate to form a flow channel system in the distribution plate. These flow passages are opened in a plurality of injection molding nozzles, for example, designed as hot channel nozzles, and each housing (12) is mounted on the lower side of the distribution plate. The injection molding nozzle (10) includes a material tube (14) having a flanged joint (16) at its upper end. This joint is releasably positioned in the housing (12). A radially formed stage (18) centers the housing (12) and the injection forming nozzle in the injection device 9 200824886 forming device. In the material pipe (10) where the diameter is extended, the center is placed in the center for the plastic (4) melt flow. The flow channel (20) [it should be designed in the form of a hole] has a flaw in the joint (16). The material supply opening (22) and the lower end thereof is open to a nozzle mouth piece (24), κ,,.
Μ嘴尖端有—材料出口開口（26)，俾能使 該可㈣的材㈣融物進人—模座（f㈣叫（圖未示）中。 此贺嘴:（24)(它宜由高導熱性材料製成）在末端放入材料管 :(且且％入)。然而各依使用情形—也可在相同功能 1式的情況支承成可軸向移動的方式，或與材料 計成一體。 為了使射出成形噴嘴⑽對分配板密封，在材料管⑽ 、、、員（6)中π又有一岔封環（28)，與材料供應開口 ο])成同 〜。也可考慮形成另-環形之對準中心突部。這點可使射 出成形：嘴(1〇)較容易安裝在該射出成形裝置上。 有加熱件（32)放在材料管（14)的外周圍（30)，該加熱 、匣構成，匣由良導熱性材料如銅或黃銅構成，它延 申k成乎材料官（1句的整個卓由向長度。在Β (34)内形成一電 加熱線圈（圖中未示），與流動通道⑽成共軸，其端子（同 樣未圖示）由側邊從殼體（12)伸出來。整個加熱件（32)被一 護管（36)圍住。 _為了將加熱件（32)產生的溫度檢出及設有一溫度感測 為（38) ’它穿過加熱件（32)過法直到材料管（14)端區域内為 ^ /JDL度感測裔（38)利用一收縮匣（39)(Crimphiilse) 200824886 固定。此收縮匿利用適當手段，例如用熔接或軟銲而以良 傳導熱的方式固定在材料管上。The tip of the mouth has a material outlet opening (26), which enables the material of the (4) material to enter the mold holder (f (four) is called (not shown). This mouthpiece: (24) (it should be high) Made of a thermally conductive material) placed in the end of the material tube: (and in%). However, depending on the use case - it can also be supported in an axially movable manner in the same function, or integrated into the material. In order to seal the dispensing plate by the injection molding nozzle (10), π has a sealing ring (28) in the material tube (10), and member (6), which is the same as the material supply opening ο]). It is also conceivable to form a further annular shaped alignment central projection. This allows injection molding: the nozzle (1〇) is easier to mount on the injection molding apparatus. A heating member (32) is placed on the outer periphery (30) of the material tube (14), and the heating and crucible are composed of a good thermal conductive material such as copper or brass, which is extended to the material officer (1 sentence) The entire length is formed. An electric heating coil (not shown) is formed in the Β (34), coaxial with the flow passage (10), and its terminals (also not shown) are extended from the casing (12) by the side edges. The entire heating element (32) is surrounded by a protective tube (36). _ In order to detect the temperature generated by the heating element (32) and to provide a temperature sensing (38) 'It passes through the heating element (32) Passing the method until the end of the material tube (14) is ^ / JDL degree sensing (38) is fixed by a shrinking 匣 (39) (Crimphiilse) 200824886. This shrinkage is achieved by appropriate means, such as by welding or soldering A good way to conduct heat is fixed on the material tube.
而幹軸主部（46)及分離部（48)圍住材料管（14)，其間留一徑 向距離’因此在加熱件（32)與幹軸設置（44)之間留有一絕熱 的空氣縫隙（56) ’ 直伸到分離部（48)上加熱件（Μ)的一狹 的止擋位置（54)為止。 為了將材料管（14)及加熱件（32)對工具板作熱遮蔽， 殼體（12)向喷嘴尖端（42)的方向用一「幹軸裝置」句延續 此幹軸裝置（44)有一幹軸主部（46)，由一硬化之工具鋼構 成’亚有套蓋形的分離部（48)，由弱導熱性材料構成，並 有-環形幹軸端部(50)，同樣由硬化工具鋼構成。該幹轴 端部（50)構成一容納部（52)，其内輪廓大致呈圓柱形，該容 、’内邛以植封方式該材料管（丨4)的自由端（4〇)圍在移動座中， 整體設計成圓柱形的幹軸主部（46)的上端設有一外螺 紋（58)並以此由下方旋入殼體（12)中。幹軸主部的下端 设計成階段狀，且與分離部（48)上端銲接。 在射出成形喷嘴（10)操作時，由加熱件（32)產生的孰能 傳送到材料管（14)及到在其中通過的塑膠熔融物。因此， 在匣（34)中沿軸向A設置的加熱線圈部段的螺距以及密度 宜選設成不同，這點使得不同量的熱能送到對應之軸向= 料笞# |又，如此溫度分佈一直可最佳化。 為了要能將一定的熱能送到各材料管部段，故該加熱 件（32)與材料管（14)須沿軸向A互相準確地相對定位。為 了在射出成形喷嘴（10)操作時達成此種軸向定位，故在加 200824886 熱件（32跑（34)的上自㈣㈣料管（i4)之—個與此自由 ::立的徑向肩部(6〇)之間設-夾緊手段(62)，宜呈一環形 彈黃形式，該環报碟翌、A 7 衣形弹頁水久地將匣（34)壓向幹軸設置（Μ)幹 轴主Μ40)的止擋位置⑽。用此方式可確保加熱件（32)沿 軸向Α相對於材料管⑽保持在—始終固定的位置，而且 =甽ϋ(34)的材料以及材料f (14)的材料在先前的操作溫度 是否均句膨脹皆然。因此，在射出成形喷嘴（ίο)操作時Γ 由於材料官（14)與加熱件（32)之間的軸向位置移動，動熱能 攸加熱件（32)傳到個別之軸向材料管部段的作用的影響可 以排除。此外，利用收縮匣可確保溫度感測器（38)相對於 才料笞（14) 軸向a的位置不會改變，因此溫度測量的地 點不會改變。因此可確保一溫度調節裝置（圖未示）含規定 勺力月b方式’匕係基於溫度感測器（3 8)所測的實際溫度。 當然’本發明範圍不限於先前所述的本發明射出成形 噴嘴的貫施例，而係可作種種變更而不脫離本發明由申請 專利範圍所定的保護範圍。因此，舉例而言，本發明也可 直接用到冷通道喷嘴。 在另一圖未示的實施例中，夾緊手段（62)設在殼體 (12)(44)與加熱件（32)之間。在此，該夾緊手段（62)(它宜設 计成彈簣元件形式）支持在幹軸裝置（44)的套蓋形分離部（48) 上’並永久地將熱件頂向材料管〇4)上的一止擋位置（圖不 詳示）。如此，在射出成形喷嘴（10)操作時也可確保加熱件（32) 使終能在材料管（44)上準確地作軸向定位，因此可供應始 終一定而恆定的熱能。 12 200824886 我們知道，射出成形工具的-射出成形 材料管（14)，該管巾至少形成—條㈣通道 — :::T在材料管〇4)上有一加熱件(32)以將可流動: '，口、中该材料管〇4)及加熱件（32)被—殼體⑽（ 圍住。為了在#出成形喷嘴（1〇)操作時，避免熱從加熱件 傳送到材料管（14)的作用受料，故加熱件（32)沿轴向A 相對於材料管〇4)設在-預定位置，纟中要維持此預定位 置，至少使用一夾緊手段（62)，它設在材料管（14)與加熱件 (32)之間，或在殼體（12)(44)與加熱件（32)之間。 此外要說明，在申請專利範圍、說明書及圖式中所述 的特點及優點，包含結構的細節及空間的設置，不論是單 獨或作各種不同組合，都在本發明範圍之内。 【圖式簡單說明】 圖1係本發明之射出成形噴嘴的一縱剖面圖。 【主要元件符號說明】 (10) 射出成形噴嘴 (12) 殼體 (14) 材料管 (16) 突緣式接頭 (18) 階段 (20) 流動通道 (22) 材料供應開口 (24) 喷嘴口件 (26) 材料出口開口 13 200824886 (28) 密封環 (30) 外周圍 (32) 加熱件 (34) 匣 (35) 溫度感測器 (39) 收縮匣 (44) 幹軸裝置 (46) 幹軸主部 (48) 分離部 (50) 幹軸端部 (52) 容納部 (54) 止擋位置 (56) 空氣缝隙 (58) 外螺紋 (60) 徑向肩部 (62) 夾緊手段The main shaft portion (46) and the separating portion (48) enclose the material tube (14) with a radial distance therebetween so that adiabatic air is left between the heating member (32) and the dry shaft setting (44). The slit (56)' extends straight to a narrow stop position (54) of the heating element (Μ) on the separating portion (48). In order to thermally shield the material tube (14) and the heating member (32) from the tool plate, the housing (12) continues to the dry shaft device (44) with a "dry shaft device" in the direction of the nozzle tip (42). The main shaft portion (46) consists of a hardened tool steel 'sub-sleeve-shaped separating portion (48) composed of a weakly thermally conductive material and having a toroidal dry shaft end (50), also hardened Tool steel construction. The dry shaft end portion (50) constitutes a receiving portion (52) having a substantially cylindrical inner contour, and the inner bore is surrounded by a free end (4〇) of the material tube (丨4) in a planting manner. In the moving seat, the upper end of the main shaft main shaft (46) which is integrally designed as a cylindrical body is provided with an external thread (58) and is screwed into the casing (12) from below. The lower end of the main shaft of the main shaft is designed in a stage shape and welded to the upper end of the separating portion (48). When the injection molding nozzle (10) is operated, the crucible generated by the heating member (32) can be transferred to the material tube (14) and to the plastic melt passing therethrough. Therefore, the pitch and density of the heating coil section disposed along the axial direction A in the crucible (34) are preferably set to be different, which causes different amounts of thermal energy to be sent to the corresponding axial direction = 笞# | again, such temperature The distribution has always been optimized. In order to be able to send a certain amount of thermal energy to the tube sections of the material, the heating element (32) and the material tube (14) must be accurately positioned relative to one another in the axial direction A. In order to achieve such axial positioning during the operation of the injection molding nozzle (10), the addition of 200824886 hot parts (32 runs (34) from the (four) (four) material tube (i4) - this free:: vertical radial The clamping means (62) between the shoulders (6 inches) should be in the form of a ring-shaped bullet, and the ring-shaped disc and the A 7-shaped bullet-shaped sheet will press the crucible (34) against the dry shaft for a long time ( Μ) The stop position of the main shaft 40) (10). In this way it is ensured that the heating element (32) is held axially relative to the material tube (10) in an always fixed position, and that the material of the material 甽ϋ(34) and the material of the material f(14) are at the previous operating temperature. The average sentence is inflated. Therefore, during the injection molding nozzle operation, due to the axial positional movement between the material member (14) and the heating member (32), the dynamic heat energy heating member (32) is transmitted to the individual axial material tube segments. The effect of the role can be ruled out. In addition, the use of the contraction weir ensures that the position of the temperature sensor (38) relative to the axial direction a of the material (14) does not change, so the location of the temperature measurement does not change. Therefore, it is ensured that a temperature adjusting device (not shown) has a prescribed scooping force b mode, which is based on the actual temperature measured by the temperature sensor (38). Of course, the scope of the present invention is not limited to the above-described embodiments of the injection molding nozzle of the present invention, and various modifications can be made without departing from the scope of the invention as defined by the appended claims. Thus, for example, the invention can also be used directly with cold aisle nozzles. In another embodiment, not shown, a clamping means (62) is provided between the housing (12) (44) and the heating element (32). Here, the clamping means (62), which is preferably designed in the form of a spring element, is supported on the cover-shaped separating portion (48) of the dry shaft device (44) and permanently places the heat member against the material tube. 〇 4) A stop position (not shown in detail). Thus, the operation of the injection forming nozzle (10) also ensures that the heating element (32) is finally axially positioned on the material tube (44) so that a constant and constant thermal energy can be supplied. 12 200824886 We know that the injection molding tool - injection molding material tube (14), which forms at least a strip (four) channel - ::: T has a heating element (32) on the material tube 4) to be flowable: ', the mouth, the material tube 4) and the heating element (32) are enclosed by the casing (10). In order to operate the #出 forming nozzle (1〇), heat is prevented from being transferred from the heating element to the material tube (14) The action is received, so that the heating element (32) is disposed at a predetermined position along the axial direction A relative to the material tube 4), and the predetermined position is maintained in the crucible, at least using a clamping means (62), which is provided Between the material tube (14) and the heating element (32), or between the housing (12) (44) and the heating element (32). In addition, it is to be understood that the features and advantages described in the claims, the description and the drawings, including the details of the structure and the arrangement of the space, whether individually or in various combinations, are within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional view showing an injection molding nozzle of the present invention. [Main component symbol description] (10) Injection molding nozzle (12) Housing (14) Material tube (16) Burr joint (18) Stage (20) Flow path (22) Material supply opening (24) Nozzle port (26) Material outlet opening 13 200824886 (28) Sealing ring (30) Outer circumference (32) Heating element (34) 匣 (35) Temperature sensor (39) Contraction 匣 (44) Dry shaft unit (46) Dry shaft Main part (48) Separation part (50) Dry shaft end (52) Housing (54) Stop position (56) Air gap (58) External thread (60) Radial shoulder (62) Clamping means