201136749 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種植物纖維的成型方法，特別是指 一種使用植物纖維為原料並以射出成型方式將其製成 型式的產品的植物纖維射出成型品的製造方法。 【先前技術】 現有的射出成型製品，其主要原料來源為塑膠原料或 橡膠原料，然而塑膠原料或橡膠原料在自然環境或垃圾掩 埋場中不易被微生物分解、腐爛，在燃燒焚化過程中又會 f生大量濃煙及有毒氣體，造成空氣、土壤、水源等各種 環ί兄上的污染，而成為環保上的問題。 此外，現有塑膠材質的射出成型品的製造方法，在混 料與射出時皆需要利用高溫使塑膠原料維持在熔融狀態， 以便於射料到-成型模具内，該塑膠原料在 冷卻定型後就能製得一射出成创σ ± ζ、内ι漸 耵出成型，為了使塑混料能完全 ㈣’ 4㈣機與射出機都要持續對 持在200t以上的离⑺邡…丑要保 入定…,、 在成型模具令，則須等到成型品完 ::型：：部：預定溫度以下後才能取出，以免製品軟化 母 相對需要較長的製造時間，因此，現有 浪費能源且製程效率較低。-材f較不㈣，在製造上也較 用4=材質不環保的問題，雖然也有部分曰常生活 紙為原料，但現有木料與紙浆的製造方 除了仍須石欠伐林木外，還會排放大量造紙污水’對環 201136749 境仍會嚴重破壞。 另外為了因應環保需求，也有以植物纖維為原料的 產品，但此類產品的製造均是以熱壓方式成型，熱壓成型 方法的主要缺點為入料不容易均勻且無法成型出特殊結構 及形狀的產品，如要製造特殊型式的產品必須二次或多次 加工程序，而存有成本高、製程效率低的缺點。 有鑑於此，目前除了仍需致力於開發各種天然農業廢 棄物作為各種生活製品的原料以節省原料成本外，為了進 一步提升相關產品品質、增加產品型式多元化及改善製造 效率，仍有持續開發與改進製造方法的需求。 【發明内容】 因此，本發明的目的，是在提供一種適合將天然農業 廢棄物製成特定造型的成品以解決環保問題，且能提高成 型品質、降低產品變形率與增進製造效率的植物纖維射出 成型品的製造方法。 於是，本發明植物纖維射出成型品的製造方法包含下 列步驟： 植物纖維混料，該植物纖維混料包括依释 定比例相混合的-主料組份、—膠料組份及—添加劑㈣ ，且該植物纖維混料的含水率是控制在3〇〜5〇wt%，該主剩 組份為碎粒狀的植物纖維物料，該膠料組份為一選自於由 下列所構成群組中的膠料：乳膠、果膠、蛋白膠、㈣掏 脂膠、膝樹脂膠’及所述膠料的組合，該添加劑組份包括 依預定比例相混合的玉米澱粉、硫酸鹽、硬質酸及水； 201136749 一一、利用—送料機將已混合均句的植物纖維混料輸送 至:射料噴頭處進行射料，該植物纖維混料在該送料機内 部疋依序經由送料加展與螺旋加壓的方式朝該射料喷頭前 進’且該送料機内部與射料喷頭的溫度都設定在小於 5 8 °C的範圍内；及 、三、自言亥送料機的射料喷頭將該㈣纖維混料射出， 以射入及充填於-成型模具的—模穴中，該模穴是由一模 壁所界定形成，透過加熱該模壁使該模穴内的植物纖維混 料受熱’ it而熟化及定型為一射出成型品，該模壁的溫度 是設定在90。(：〜180°C。 本發明的有益效果在於··配合本發明所用的植物纖維 混料的特性’可在該混料射入成型模具的步驟才進行加熱 ，其他步驟則可在較低溫或常溫下進行，另外，透過該植 =纖維混料在高溫下完成定型的特性，可在高溫時就將該 定型品取出以縮短模具被佔用時間，進而能提升整體製造 效率並解決熱壓成型方式容易產生較高不良率的缺失，加 上本發明的製造方法能夠以植物纖維為主要原料製出預定 型式的成型品，而兼具有環保、節省能源與成本且能提升 製程效率的特性。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖1與圖2，本發明植物纖維射出成型品的製造方 201136749 法的較佳實施例包含下列步驟： 步驟101是配製一植物纖維混料20,且是將預定比例 的一主料組份、一膠料組份及一添加劑組份同時置於一混 料機2中使其混合均勻，進而配製成該植物纖維混料2〇。 該主料組份為碎粒狀的植物纖維物料，該膠料組份為一選 自於由下列所構成群組中的膠料：乳膠、果膠、蛋白膠、 酚醛樹脂膠、脲樹脂膠，及所述膠料的組合，該添加劑組 伤包括依預定比例相混合的玉米澱粉、硫酸鹽、硬質酸鹽 及水。其中，硫酸鹽可以是硫酸鋇、硫酸鐵、硫酸鋅、硫 酸錳或硫酸鉻其中一種。硬質酸為一種無機鹽類粉束，且 可以是硬質酸鎂、硬質酸鈣、硬質酸鋅、硬質酸鋁、硬質 酸鋇其中一種。 由於在混合時，前述三種組份間的相互作用或由於攪 拌動作可▲會導致該混料的溫度升高，為了避免溫度過高 造成部分混料過早熟化，較佳是在該混枓機2中增設一冷 卻系統（圖未示），謂該主料組份、膠料組份與添加劑組份 混合時的溫度控制在小於等於58°C的範圍内。 較佳地，該植物纖維混料2〇的主料組份為一選自於由 下列所構成群組中的植材物料：穀殼類物料、秸稈類物料 、廢渣類物料、澱粉類物料，及所述植材物料的組合。其 中’該榖殼類物料為—選自於由下列所構成群組中的物料 .稻殼、麥殼、高粱殼、花生殼、豆笑、椰子殼，及所述 物料的組合’該稽稈物料維為一選自於由下列所構成群組 中的物料：稻稃、麥稈、玉米稈、高粱桿、豆稈、棉稈、 201136749 蘆葦，及所述物料的組合，該廢逢類物料為一選自於由下 列所構成群組中的物料：木屬、竹肩、玉木棒洁、甘薦:査 、豆腐逢、啤酒逢、豆渣，及所述物料的組合，及該殿粉 類物料為-選自於由下列所構成群組中的物料··玉米激粉 、馬鈴薯粉、木薯粉、大豆粉、爸煮、竿粉、橡子粉，及 所述物料的組合。前述植材物料為該植物纖維混料中的主 要成分，由於該等物料屬天然農業廢棄4勿，取得方便且價BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for molding a plant fiber, and more particularly to a plant fiber which uses a plant fiber as a raw material and which is formed into a product by injection molding. A method of manufacturing a molded article. [Prior Art] In the existing injection molded products, the main raw material source is plastic raw materials or rubber raw materials. However, plastic raw materials or rubber raw materials are not easily decomposed and rotted by microorganisms in the natural environment or landfill, and will be in the process of combustion incineration. A large amount of smoke and toxic gases are generated, causing pollution on the air, soil, water sources, etc., and becoming an environmental issue. In addition, in the manufacturing method of the injection molding of the plastic material, it is necessary to maintain the molten material in a molten state by using high temperature during mixing and injection, so as to facilitate the injection into the molding die, the plastic material can be cooled and shaped. Produce a shot into the creation of σ ± ζ, inside ι gradually out of shape, in order to make the plastic mixture can be completely (four) '4 (four) machine and the injection machine must continue to hold above 200t (7) 邡 ... ugly to secure ... In the molding die, it must wait until the molded product is finished:: Type:: Part: It can be taken out after the predetermined temperature, so as to avoid the need for a long manufacturing time for the softening of the product. Therefore, the existing energy is wasted and the process efficiency is low. - material f is less (four), in manufacturing, it is also more difficult to use 4 = material is not environmentally friendly, although some of the common life paper is used as raw material, but the existing wood and pulp manufacturing side is still required to slash the forest, but also Will discharge a large amount of papermaking wastewater' will still seriously damage the environment of 201136749. In addition, in order to meet environmental protection needs, there are also products based on plant fiber, but the manufacture of such products is formed by hot pressing. The main disadvantage of the hot press forming method is that the feeding is not easy to be uniform and cannot form a special structure and shape. Products that require special types of products must have two or more processing procedures, and have the disadvantages of high cost and low process efficiency. In view of this, in addition to the need to develop various natural agricultural wastes as raw materials for various living products to save raw material costs, in order to further improve the quality of related products, increase product diversification and improve manufacturing efficiency, there is still continuous development and Improve the need for manufacturing methods. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a plant fiber that is suitable for preparing a natural agricultural waste into a specific shape to solve environmental problems, and which can improve molding quality, reduce product deformation rate, and improve manufacturing efficiency. A method of manufacturing a molded article. Therefore, the method for producing a plant fiber injection molded article of the present invention comprises the following steps: a plant fiber mixture comprising a premixed-main ingredient component, a rubber component and an additive (four), And the moisture content of the plant fiber mixture is controlled at 3〇~5〇wt%, the main remaining component is a granular fibrous plant material, and the rubber component is selected from the group consisting of The rubber compound: latex, pectin, protein glue, (4) blush gum, knee resin glue' and the combination of the rubber compound, the additive component comprises corn starch, sulfate, hard acid and a mixture thereof in a predetermined ratio. Water; 201136749 one by one, using the - feeder to transport the mixed plant fiber mixture to the injection nozzle for the shot, the plant fiber mixture in the feeder, followed by feeding and spiraling The pressurized method advances toward the injection nozzle' and the temperature of the inside of the feeder and the injection nozzle are set within a range of less than 58 ° C; and, the third, the injection nozzle of the self-feeding machine The (four) fiber mixture is injected to inject and Filled in a mold cavity of a molding die, the cavity is defined by a mold wall, and the plant fiber mixture in the cavity is heated and shaped into an injection molded product by heating the mold wall. The temperature of the mold wall is set at 90. (: ~180 ° C. The beneficial effects of the present invention are that the characteristics of the plant fiber mixture used in the present invention can be heated only at the step of injecting the mixture into the molding die, and other steps can be at a lower temperature or It is carried out at room temperature. In addition, the styling property is completed at a high temperature through the phyto-fiber mixture, and the styling product can be taken out at a high temperature to shorten the occupation time of the mold, thereby improving the overall manufacturing efficiency and solving the hot press forming method. It is easy to produce a high defect rate, and the manufacturing method of the present invention can produce a predetermined type of molded article using plant fiber as a main raw material, and has the characteristics of being environmentally friendly, saving energy and cost, and improving process efficiency. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of a preferred embodiment of the drawings. Referring to Figures 1 and 2, the plants of the present invention. The preferred embodiment of the method for producing a fiber injection molded article 201136749 comprises the following steps: Step 101 is to prepare a plant fiber mixture 20, and A predetermined proportion of a main component, a rubber component and an additive component are simultaneously placed in a mixer 2 to be uniformly mixed, and then formulated into the plant fiber mixture 2〇. The pulverized plant fiber material, the rubber component is a rubber selected from the group consisting of latex, pectin, protein glue, phenolic resin glue, urea resin glue, and the glue In combination with the material, the additive group includes corn starch, sulfate, hard acid salt and water mixed in a predetermined ratio, wherein the sulfate salt may be one of barium sulfate, iron sulfate, zinc sulfate, manganese sulfate or chromium sulfate. The hard acid is an inorganic salt powder bundle, and may be one of magnesium stearate, calcium hard acid, zinc hard acid, aluminum hard acid, and barium hard acid. Because of the interaction between the above three components during mixing, The stirring action may cause the temperature of the mixture to rise. In order to avoid premature ripening of the partial mixture due to excessive temperature, it is preferred to add a cooling system (not shown) to the mixing machine 2, that is, the main Material component, rubber component The temperature at which the additive component is mixed is controlled within a range of 58 ° C or less. Preferably, the main component of the vegetable fiber mixture 2 is a vegetable material selected from the group consisting of the following: : a combination of a chaff material, a straw material, a waste material, a starch material, and the plant material, wherein the clam shell material is selected from the group consisting of: rice. Shell, wheat husk, sorghum shell, peanut shell, bean smile, coconut shell, and a combination of the materials 'the stalk material dimension is one selected from the group consisting of: rice bran, wheat straw, Corn stalk, sorghum pole, bean stalk, cotton stalk, 201136749 reed, and the combination of the materials, the waste material is a material selected from the group consisting of: wood, bamboo shoulder, jade wood stick Jie, Gan recommended: check, tofu, beer, bean dregs, and the combination of the materials, and the powder material of the hall is - selected from the group consisting of: · corn powder, potato powder , tapioca flour, soy flour, dad boiled, glutinous flour, acorn powder, and The combination of materials. The aforementioned plant material is the main component in the plant fiber mixture, and since the materials belong to the natural agricultural waste 4, it is convenient and the price is obtained.
袼低廉，且其種類範圍廣’可根據各地資源情況和季節， 選用不同的材料’使原料成本較低且原料來源不致置乏， 以此種原料所製出的產品能在自然環境分解，而能符合環 保的需求。 /為了使所製㈣成型品具有符合實用規格的結構強度 須控制4主料組份、膠料組份與添加劑組份的混合比例 ，較佳地，該植物纖維混料20包括45〜75 wt%的主料組份 〜35 Wt%的膠料組份及15〜25糾％的添加劑組份。在本 貫鈿例中5亥植物纖維混料20是由70 wt%的主料組份、1 〇 t /〇的膠料組伤及2〇 wt%的添加劑組份混合配製而成。 其中，添加該膠料組份並使該膠料組份與該主料組份 均勻此合，可透過該膠料組份的特性使該主料組份結合成 、體’再配合預定的加卫與成型方法，就能被製成預定型 式的、纟α構產品^該添加劑組份則是用於改善成型品的表面 °〇質，且能使所製出的成型品具有光滑細緻的表面，而有 助於提升產品質感。 此外由於形成该主料組份中的碎粒狀植物纖維物料 201136749 的粒徑若過大，將導致該主料組份在該膠料乡且份中的流動 車差並產生團聚現象，藉此，易使該植物纖維混料2〇 所製出的產品結構強度與物性變差，而影響到實用性，反 之，若該植物纖維物料的粒徑規格過小，則因需花費更多 時間與辛王序進行加工處理，反而增加製造成本，因此，為 了在產物性與製造成本之間取得平衡，經實際試作的結 果，當以國際標準筛目作為量測標準時，該主料組份之植 物纖維物料經研磨處理後的粒徑範圍較佳是控制6〇目〜 目之間為宜。 步驟1〇2是利用一送料機3紅混合均勻的植物纖維 混料20輸送至—射料喷頭31處進行射料，該植物纖維混 料20在該送料機3内部是依序經由送料加壓與螺旋加廢方 式朝該射料喷頭31前進，並使輸送該混料20的管道之管 壁保持光滑及確保輸送順暢。不管是送料加壓或螺旋加麼 ，可視產品型式設定所要施加的壓力值，該壓力值較佳為 30 kg/Cm3〜12〇 kg/cm3。由於以植物纖維、膠料組份及添加 劑組份中的各種成分混合而成的植物纖維混料具有加熱至 預疋度會煞化疋型的特性，為了使該混料在送料過程 中值維持具有流動性的流體狀態，該送料冑3㈣與該射 料喷頭31的皿度不宜過南’因此’可直接在常溫下進行混 料與送料，為了避免該植物纖維混料2〇發生固化，除了要 控制該主料組份、膠料組份與添加劑組份在該混料機2混 合時的溫度外，該送料機3與射料喷頭31的溫度也應設定 在小於等於58»C的範圍内以防送料時升溫。在本實施例中 201136749 ^將該送料機3的溫度設定在451在本實施例中，是 猎在該达料機3的一螺旋送料單元33與該射料嗔頭U 置-冷卻系統34以將沿該送料機33輸送的植物纖 h料20的溫度控制在低於抑的範圍。該螺旋送料單元 33的螺旋元件331是由不錄鋼材質所製成用以避免生錄。 由值得說明的是，該主料組份、膠料組份與添加劑組份 都含有水分’因此’將前述三種組份混合後所獲得的植 物纖維混料也具有狀的含㈣，雜物纖維混料的含水 率疋控制在30〜50wt% ’藉此’使該植物纖維混料具有流動 性以達到均勾混合的效果並有助於維持送料的順暢性。 步驟103是自該送料機3的射料嗔頭31將該植物纖維 混料射出，以射入及充填於一成型模具32的-模穴322 * X模八322是由一模μ 32i所界定形成，透過加熱該 模壁321使賴穴322内的植物纖維混料2〇受熱，進而熟 化及定型A射出成型品。其中，該植物纖維混料自該 射料噴頭31射出的壓力為1()()〜35⑽嘲，而該混料在該 成型模具32的成型時間則是設定在1分鐘〜15分鐘的範圍 成型時間長短主要是視該成型品的厚度與尺寸作調整。 較佳地，為了使該植物纖維混料20均勻且完全地填滿 «•亥模八322，並獲得高精密度與較佳成型品質的射出成型品 ’可設置一與該模R 322相連通的柚真空裝£ 4，並在該植 物纖維混料20進行射料的同時，利用該抽真空裝置4對該 模八3 22抽真空，藉此，有助於使該混料2〇快速且均勻地 真满忒模八322，並能加速排除熱氣、提升成型速度，因此 201136749 ，能穩定產品品質及減少不良率發生。 雖然該植物纖維混料具有受熱時會熟化定型的特性， 除了需藉由加熱完成該定型品的製造外，也要避免過高的 溫度導致其中的植材物料燒焦及加熱源耗料多而浪費能 源因此，較佳是將該模壁321的溫度設定在9〇。〇〜18〇。〇 其中，可沿該成型模具32的模壁321設置一加熱單元 5以使該模壁321被加熱並維持在預定的溫度，該加熱單元 5的設置方式不受限，例如，該加熱單元5可藉由在該模壁 321内埋設多數支加熱管51 ’再於該等加熱管η内引入加 熱源’達到加熱該模壁321的效果，所用的加熱源種類不 受限’可以透過-選自下列群組中的加熱源對該模壁321 加熱：電熱、蒸汽及熱煤油。 需要補充說明的是，該成型品的種類與型式不受限， :依生產需求設計模穴322的形狀’進而製出材質環保又 有貫用價值的特定結構型式的成型品，例如，該成型品可 為壤保棧板、環保餐具、各種環保容器及工業用產品。另 外’在本實施财是以立式的成型模具32為例說明 ’但本發明的製造方法所用的洲_ γ甚·^ h万沄所用的6又備可依貫際需求改變其配 :方式，該射料喷頭31的出料方向也能被調整，因此，本 發明也能適用於臥式的成型模具32。 歸納上述’本發明植物纖維射出成型 可獲致下述的功效及優點，故能達到本發明的目方法 ―、本發明只有在射料至該成型模具32 _，才需加旁 10 201136749 f該模穴322内的混料20熟化定型，在混料機2、送料機 =行混料與送料時皆不需再加熱，㈣ 法在混料與送料時都要提供高達2〇〇 i衣 ^ 上的南溫，才能# 助於減少製造成本。 量能源’而有 二、 配合該植物纖維混料2G受熱定型的材質特性 該成型模具32加熱就能使該混料2()熟化並定型為該成型袼 low-cost, and its wide range of 'can be based on the local resources and seasons, the choice of different materials' so that the cost of raw materials is lower and the source of raw materials is not deficient, the products made from such raw materials can be decomposed in the natural environment, and Can meet the needs of environmental protection. / In order to make the (4) molded article have structural strength in accordance with practical specifications, it is necessary to control the mixing ratio of the 4 main component, the rubber component and the additive component. Preferably, the vegetable fiber blend 20 comprises 45 to 75 wt. % of the main ingredient is ~35 Wt% of the compound component and 15 to 25% of the additive component. In the present example, the 5H plant fiber mix 20 is prepared by mixing 70 wt% of the main ingredient, 1 〇 t / 〇 of the rubber group and 2 〇 wt% of the additive component. Wherein, the rubber component is added and the rubber component is uniformly combined with the main component, and the characteristics of the rubber component can be combined to form the main component, and the body is further combined with a predetermined addition. The molding and molding method can be made into a predetermined type of 纟α structure product. The additive component is used for improving the surface enamel of the molded article, and can produce a smooth and fine surface of the molded article. And help to improve the product texture. In addition, if the particle size of the crumb-like plant fiber material 201136749 formed in the main component is too large, the flow component of the main component in the rubber compound and the mixture may be agglomerated, thereby causing agglomeration. It is easy to make the structural strength and physical properties of the product prepared by the plant fiber mixture 2, which affects the practicability. On the contrary, if the particle size specification of the plant fiber material is too small, it takes more time and Xin Wang. The processing is carried out in order, which in turn increases the manufacturing cost. Therefore, in order to strike a balance between the product properties and the manufacturing cost, the plant fiber material of the main component is used when the international standard mesh is used as the measurement standard. Preferably, the particle size range after the grinding treatment is between 6 and 8 mesh. Step 1〇2 is carried out by using a feeder 3 red mixed uniform plant fiber mixture 20 to the injection head 31 for the injection, and the plant fiber mixture 20 is sequentially fed through the feeder 3 in the interior of the feeder 3 The press and spiral addition mode advances toward the shot head 31, and the tube wall of the pipe conveying the mix 20 is kept smooth and the conveyance is smooth. Whether it is feed pressurization or screw addition, the pressure value to be applied is set according to the product type, and the pressure value is preferably 30 kg/cm 3 to 12 〇 kg/cm 3 . The plant fiber mixture which is obtained by mixing various components in the plant fiber, the rubber component and the additive component has the property of heating to the pre-twisting degree, and the value of the mixture is maintained in the feeding process. In the fluid state with fluidity, the feeding 胄3(4) and the ejection head 31 should not be too far south. Therefore, the mixing and feeding can be directly performed at normal temperature, in order to avoid curing of the plant fiber mixture. In addition to controlling the temperature of the main component, the size component and the additive component mixed in the mixer 2, the temperature of the feeder 3 and the ejection head 31 should also be set to 58»C or less. Within the range to prevent temperature rise during feeding. In the present embodiment, 201136749^the temperature of the feeder 3 is set at 451. In this embodiment, a screw feeding unit 33 of the feeder 3 and the projecting head U-cooling system 34 are hunt. The temperature of the vegetable fiber material 20 conveyed along the feeder 33 is controlled to be below the range of inhibition. The spiral element 331 of the screw feed unit 33 is made of a non-recorded steel material to avoid the recording. It is worth noting that the main ingredient, the compound component and the additive component all contain water. Therefore, the plant fiber mixture obtained by mixing the above three components also has a shape containing (4), a fiber of impurities. The moisture content of the mixture is controlled at 30 to 50% by weight 'by this' to make the plant fiber mixture fluid to achieve the effect of uniform mixing and to help maintain the smoothness of the feeding. Step 103 is to eject the plant fiber mixture from the shot boring head 31 of the feeder 3 to inject and fill the mold cavity 322 of a molding die 32. The X die 322 is defined by a die μ 32i Forming, by heating the mold wall 321, the plant fiber mixture 2 in the lating hole 322 is heated, and then the aging and setting A are injected into the molded article. Wherein, the pressure of the plant fiber mixture from the injection nozzle 31 is 1 () () ~ 35 (10), and the molding time of the molding die 32 is set in the range of 1 minute to 15 minutes. The length of time is mainly adjusted according to the thickness and size of the molded article. Preferably, in order to make the plant fiber mixture 20 uniformly and completely fill the «·Hai mold eight 322, and obtain a high-precision and better molding quality injection molded article', it is possible to provide a connection with the mold R 322 The pomelo vacuum is loaded with £4, and while the plant fiber mix 20 is being shot, the vacuum is applied to the die 832, thereby facilitating the mixing of the mixture. Evenly full of mold 322, and can accelerate the elimination of hot air, improve the molding speed, so 201136749, can stabilize product quality and reduce the occurrence of non-performing rate. Although the plant fiber mixture has the characteristics of being matured when heated, in addition to heating to complete the manufacture of the shaped product, excessive temperature is also caused to cause the plant material to be charred and the heating source to consume more material. Waste of energy Therefore, it is preferable to set the temperature of the mold wall 321 to 9 Torr. 〇~18〇. A heating unit 5 may be disposed along the mold wall 321 of the molding die 32 to heat and maintain the mold wall 321 at a predetermined temperature. The heating unit 5 is not limited in arrangement, for example, the heating unit 5 The effect of heating the mold wall 321 can be achieved by embedding a plurality of heating tubes 51' in the mold wall 321 and introducing a heating source η into the heating tubes η. The type of heating source used is not limited to The mold wall 321 is heated from a heating source in the following groups: electric heat, steam, and hot kerosene. It should be noted that the type and type of the molded product are not limited, and the shape of the cavity 322 is designed according to the production demand, thereby producing a molded product of a specific structural type having environmentally friendly and practical value, for example, the molding. The products can be loam pallets, environmentally friendly tableware, various environmentally friendly containers and industrial products. In addition, in the present embodiment, the vertical molding die 32 is exemplified as an example. However, the 6 used in the manufacturing method of the present invention can be changed according to the demand: The discharge direction of the injection head 31 can also be adjusted. Therefore, the present invention is also applicable to the horizontal molding die 32. In summary, the above-mentioned plant fiber injection molding can achieve the following effects and advantages, so that the objective method of the present invention can be achieved. The present invention only needs to add a side to the molding die 32 _, and it is necessary to add a side 10 201136749 f The mixture 20 in the hole 322 is matured and shaped, and no need to be heated in the mixing machine 2, the feeder=line mixing and feeding, (4) the method must provide up to 2 〇〇i clothes on the mixing and feeding. Nan Wen, Talent # helps to reduce manufacturing costs. The amount of energy is the same as that of the plant fiber mixture 2G by heat setting. The molding die 32 is heated to make the mixture 2 () mature and shaped into the molding.
:’與現有一般熱塑性塑料製品為了防止變形須等到該製 品冷卻到一定溫度以下才能定刑 不此疋型，且需待一段時間才能取 出的作法相比’本發明的混料受熱後就能穩定定型為成型 品’因此不需等到冷卻才取出，即使在高溫狀態直接取出 也不致造成該成型品變形’藉此，可有效縮短該成型模且 32被佔用時間’並能繼續供下__次射料使用使本發明具 有能提高整體製程效率的優點。 三、 本發明的混料能藉由控制加熱溫度獲得穩定定型 ’相較於要冷卻到溫度以下並維持―段時間才能獲得 穩定定型的現有射出成型方式，更不易發生成型品變形的 情形，使本發明較容易確保成型品的定型品f，而能有效 減少不良率與變形率。 、四、現有以熱壓成型方法製造植物纖維產品的製造方 式又限於成型方式’只能適用於製造結構與形狀較簡單 的產品’本發明能利用射出成型製法的優點，配合模具設 計而製出不同結構且形狀各異的產品，因&，能配合生產 需求’製造形狀多元化的產品，並同樣能透過模具設計， 201136749 提高成型品的精密度’而有助於生產高品質的環保 品。 、買製 五、由於本發明能夠將植物纖維原料製成特定钟構而 實用的成型品，由於原料環保、取得容易及價格低廉，同 樣能降低製造成本，並使本發明具有符合環保的特性。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是本發明植物纖維射出成型品的製造方法一較佳 實施例的一流程圖；及 圖2疋一示意圖，說明該較佳實施例的一成型步驟， 利用一射料喷頭對一成型模具的一模穴射入及充填植物纖 維混料的情形。 12 201136749 【主要元件符號說明】 20·..·· •…植物纖維混料 33··.·. •…螺旋送料單元 3…… •…送料機 331… •…螺旋元件 31·...· •…射料喷頭 34 •…冷卻系統 32····· •…成型模具 4…… …·抽真空裝置 321… •…模壁 5…… •…加熱單元 322… •…模穴 51 ··.·· •…加熱管: 'In order to prevent deformation, the existing general thermoplastic products must wait until the product is cooled below a certain temperature to be sentenced to a different type, and it takes a while to take out. Compared with the method of the present invention, the mixture can be stably shaped after being heated. It is a molded product, so it does not need to wait until it is cooled before it is taken out. Even if it is taken out at a high temperature, it does not cause deformation of the molded product. Thereby, the molding die can be effectively shortened and 32 is occupied, and the __ shot can be continued. The use of the material gives the present invention the advantage of improving overall process efficiency. 3. The mixing material of the present invention can obtain a stable setting by controlling the heating temperature, and the existing injection molding method capable of obtaining a stable setting can be obtained when the temperature is below the temperature and maintained for a period of time, and the deformation of the molded product is less likely to occur. The present invention makes it easier to secure the shaped article f of the molded article, and can effectively reduce the defect rate and the deformation rate. 4. The existing manufacturing method for manufacturing plant fiber products by hot press forming method is limited to the molding method 'only applicable to products with simple structure and shape'. The present invention can utilize the advantages of the injection molding method and the mold design. Products with different structures and shapes can be used to produce high-quality environmentally friendly products because they can produce a wide range of products in accordance with production needs, and can also improve the precision of molded products through the design of molds, 201136749. . In the present invention, since the raw material of the plant fiber material can be made into a specific bell structure and is practical, since the raw material is environmentally friendly, easy to obtain, and inexpensive, the manufacturing cost can be reduced and the present invention can be environmentally friendly. The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow chart showing a preferred embodiment of a method for producing a plant fiber injection molded article of the present invention; and Fig. 2 is a schematic view showing a molding step of the preferred embodiment, using a shot The nozzle is injected into a cavity of a molding die and filled with a plant fiber mixture. 12 201136749 [Explanation of main component symbols] 20·..··•...plant fiber mixture 33····.•...spiral feeding unit 3...•...feeder 331...•...spiral element 31·...· •...Shrinking head 34 •...Cooling system 32·····•...Molding tool 4...··vacuum device 321...•...die wall 5...•...heating unit 322...•...cavity 51 · ·.·· •…Heating pipe
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