1271299 九、發明說明： 【發明所屬之技術領域】 本發明是有關於-種塑膠外殼的製造方法，特別是指 一種薄型鋰電池塑膠外殼的製造方法。 【先前技術】 如圖1、2 。該塑膠外殼 電子產品上。 所不，為現有一種薄型鋰電池塑膠外殼100 1〇0是可裝設於時下講求輕、薄、短、小的 該薄型鐘電池塑膠外殼1〇〇具有一呈狹長環形的周壁 、外周面12、一與該外周面12相背設置的内周面13、 一：：周壁11圍繞界定且可容納數個鋰電池（圖未示）的 容室空間14，及—用來封閉該容室空間Η -側且連接於該 周』11的底壁15。該周壁11的厚度D，即是該外周面12 與該内周面13的最短距離，是介於〇25至〇5毫米之間。 如圖3所示，該薄型鋰電池塑膠外殼1〇〇的製造方法 及步驟如下： 一、 製備一模具（圖未示），該模具具有一進料口、一 連通該進料口的點狀進澆口，及一連通該進澆口的模穴， δ亥柄：穴的形狀是對應該塑膠外殼100。 二、 將該模具合模。 二、由該進料口射入”融熔的塑膠材料至該模穴。 四、 等待塑膠材料冷卻。 五、 開模並取出加工品。 上述該模具採用點狀進料澆口的設計，且採用一次式 1271299 的射出方式進行加工，意即進行一次塑料射出加工（步雜 f即可完成該薄型塑膠夕㈣！⑽的加工，雖然可成型該 薄型塑膠外殼100，但實際操作時卻有以下缺失·· 由於該薄型鋰電池塑膠外殼100的外觀是狹長形，且 該周壁U的厚度D是介於0·25 S 0·5毫米之間的超薄設計 ’有時甚至小於0.25㈣，因此該模穴的流長比較高，導 致射入該模具内融炼的塑膠材#，於填滿該模穴之前即因1271299 IX. Description of the Invention: [Technical Field] The present invention relates to a method for manufacturing a plastic case, and more particularly to a method for manufacturing a plastic case of a thin lithium battery. [Prior Art] As shown in Figure 1, 2 . The plastic case is on the electronics. No, it is a thin lithium battery plastic case 100 1〇0 which can be installed in the light, thin, short and small. The thin bell battery plastic case 1 has a narrow annular peripheral wall and outer peripheral surface. 12. An inner peripheral surface 13 disposed opposite the outer peripheral surface 12, a: a peripheral wall 11 surrounding a chamber space 14 defining and accommodating a plurality of lithium batteries (not shown), and - for closing the chamber The space Η is on the side and is connected to the bottom wall 15 of the circumference 11 . The thickness D of the peripheral wall 11, i.e., the shortest distance between the outer peripheral surface 12 and the inner peripheral surface 13, is between 〇25 and 〇5 mm. As shown in FIG. 3, the manufacturing method and steps of the plastic case 1 of the thin lithium battery are as follows: 1. Prepare a mold (not shown) having a feed port and a dot connected to the feed port. The gate, and a cavity that communicates with the gate, the shape of the hole is corresponding to the plastic casing 100. Second, mold the mold. 2. The molten material is injected into the cavity from the inlet. 4. Wait for the plastic material to cool. 5. Open the mold and take out the processed product. The above mold adopts the design of the point feed gate, and The injection method of the one-time 1271299 is used for processing, which means that the plastic injection processing can be performed once (the step of f can complete the processing of the thin plastic eve (4)! (10). Although the thin plastic case 100 can be formed, the actual operation has the following Missing·· Since the appearance of the thin lithium battery plastic case 100 is elongated, and the thickness D of the peripheral wall U is an ultrathin design between 0·25 S 0·5 mm, sometimes even less than 0.25 (four), The cavity has a relatively long flow length, and the plastic material # which is injected into the mold is melted before the cavity is filled.
飞而逐漸硬化’造成该模穴充填不足的短射現象。為克 服此問題，必須提高射出成型機的射出壓力與射出速度， 但此舉更將導致該模具因為無法承受多次反覆高溫高^的 融熔塑膝材料衝擊而損壞，使模具壽命因此縮短。 【發明内容】 因此，本發明之目的，即在提供一種可避免短射現象 產生’且不需提高射出壓力與射出速度的薄型鐘電池塑膠 外殼之製造方法。 / 於疋，本發明薄型鋰電池塑膠外殼之製造方法，該塑 膠外殼具有—呈狹長環形的周壁，及-連接於該周壁一側 的底壁’該周壁的厚度是介於0.25至0.5毫米之間，該薄 型鐘電池塑膠外殼之製造方法包含以下步驟： (Α)、製備一模具，該模具具有一動模、一靜模、— 滑動組件、—第一進料口、—第二進料口、一對應該第— 進料：的第一澆口，及-對應該第二進料口的第二澆口， 垓動杈可相對该靜模由一第一角度旋#⑽度至—第二角 度’於該第—角度日夺，該動模、靜模、該滑動組件包圍界 6 1271299 定出一連通該第一澆口且對寤— ^ ^應5亥周壁形狀的第一模穴， 該第二角度時，該動模、靜 、 於 連通該第二淹口且對應該底 疋出— 穴且有一平行一笛古a形狀的弟一松穴，該第—模 向的第-長度、-平行-第-η 的第二長度，及一平行一篦-士a 罘一方向 度是大於該第二長度，該第二長度是大於該第三長：:： 第二模穴具有—平行該第二方向且與該第二長度等長的第Flying and gradually hardening, causing a short-shot phenomenon in which the cavity is insufficiently filled. In order to overcome this problem, it is necessary to increase the injection pressure and the injection speed of the injection molding machine, but this will cause the mold to be damaged due to the inability to withstand multiple times of high temperature and high melting plastic knee material, thereby shortening the life of the mold. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method of manufacturing a thin bell-shaped plastic battery case which avoids the occurrence of a short-shot phenomenon and which does not require an increase in injection pressure and ejection speed. / Yu, the manufacturing method of the plastic outer casing of the thin lithium battery of the present invention, the plastic outer casing having a peripheral wall having a narrow annular shape, and a bottom wall connected to one side of the peripheral wall, the thickness of the peripheral wall being between 0.25 and 0.5 mm The manufacturing method of the plastic battery case of the thin bell battery comprises the following steps: (Α), preparing a mold having a movable mold, a static mold, a sliding assembly, a first feeding port, and a second feeding port a pair of first gates corresponding to the first feed, and - a second gate corresponding to the second feed inlet, the tilting jaws may be rotated by a first angle from the first angle to (#) degrees to - The second angle 'in the first-angled day, the movable mold, the static mold, the sliding assembly encircling boundary 6 1271299 defines a first cavity that communicates with the first gate and has a shape of 5 周The second angle, the moving mold, the static, the second flooding port and the corresponding bottom hole - the hole and a parallel one of the shape of a divine a shape of the hole, the first - the first - The second length of the length, -parallel-the -n, and a parallel 篦-士a 罘 directionality is greater than A second length, the second length is greater than the third mold cavity having a second length ::: - Length in the second direction and parallel to the second length
四長度，及一平行該第三方向 、 乃门且與4弟二長度等長的第五 長度，^弟一澆口是呈扇形且沿該第一長度設置。 (B)將該動模朝向該靜模進行合模動作。 (C )朝該第一進料口粉入_楚 _ 、 坪廷卄口射入弟一塑膠原料，使該第一 塑膠原料經由該第一洗口進入該第一模穴。 (D )該第一塑膠原料冷卻固化。 ⑻使軸模與該靜模分離後，將該純相對該靜模 旋轉180度。 (F) 將該動模朝向該靜模進行合模動作。 (G) 朝該第二進料口射入一第二塑膠原料，使該第二 塑膠原料經由該第二澆口進入該第二模穴。 (H) w亥第—塑膠原料冷卻固化。 (I) 脫模。 藉由運用雙色塑料射出技術，進行兩次塑料射出，並 將該第一澆口形狀採用扇形設計，且沿該第一長度設置， 而避免短射現象發生。 【實施方式】 1271299 有關本發明之前述及其他技術内容、特點與功效， 以下配合苓考圖式之一較佳實施例的詳細說明 楚的呈現。 j Θ 在本發明被詳細描述之前，要注意的是，在 π Μ卜的說 明内容中，類似的元件是以相同的編號來表示。 本發明薄型鋰電池塑膠外殼之製造方法之該較佳實施 例，是用來製造可容納數個鋰電池（圖未示）的—薄二: 電池塑膠外殼100。該塑膠外殼100的外觀同習知圖1、2 所示。 參閱圖1、4，該薄型塑膠外殼100是使用一具有二個 進料口的模具20,並搭配一可做雙色塑料射出且具有二個 塑料射出頭的塑膠射出成型機（圖未示）加工製造。 Τ模具20具有一動模21、一靜模22、一滑塊组件23 、，第進料口 24、一第二進料口 241、一對應該第一進 料口 24的第一澆口 25，及一對應該第二進料口 241的第二 澆口 251。本實施例中，為方便表示該第一、二澆口 、 1的形狀，是以饭想線連接於一第一半成品(見圖6 ) 與:第二半成品40 (見目9)上表示，該第一半成品3〇即 為違周壁u ’該第二半成品40即為該周壁u與該底壁15 的結合體。 孩滑塊組件23具有二同時位於該動模21的滑塊231， 及-同時位於該靜模22且可分別頂推該二滑塊的斜銷 232土。該動模21與該靜模22可被該射出成型機帶動，由相 遠離的開模狀悲（圖未示）逐漸靠近，靠近的過程中 1271299 . ^二滑塊231被該二斜鎖232頂推，最後抵達該動、靜 松21、22接合的一合模狀態（見圖4、7)。 "如圖1、4、7所不，於該開模狀態時，該動模21可相 亥靜，22由-第-角度（見圖4)繞一軸線L旋轉18〇 度^一第二角度（見圖7)。於該第一角度的該合模狀態時 /亥動松21、靜模22、該二滑塊231 &圍界定出—連通該 弟-洗口 25的第-模力26 (見圖5)。於該第二角度的該 • 合模狀態時，該動模21、靜模22、該二滑塊231包圍界^ 出—連通該第二澆口 251的第二模穴27 (見圖8)。 本實施例中，該動模21與該靜模22相對旋轉的模具 技術，及該動、靜模21、22相對旋轉且合模後可界定出^ ^的該第―、二模穴26、27，皆為現有雙色塑料射出的成 热技術，此處將不再贅述該模具20的結構，僅將以示意 表示之。 ^ 士圖1 4、5、6所示，該第一模穴26是呈一環形的 鲁 $間，且對應該塑膠外殼100的周壁11形狀。該第-模穴 26具有一平行一第一方向χ的第一長度261、一平行一第 二方向Υ的第二長度262，及一平行一第三方向ζ的第三 長度263。該第一長度261是大於該第二長度262，該第二 長度262是大於該第三長度 263 〇 该第一澆口 25是呈一扇形且沿該第一長度261及一由 該動权與Α靜松22共同界定的分模面而設置，並位於該第 三長度263的中間。 如圖1、7、8、9所示，該第二模穴27是呈一板形的 299 空:有且^應該塑膠外夢又100的麵i5形狀。該第二模穴 四長产二 二方向¥且與該第二長度262等長的第 具 及—平行該第三方向U與該第三長度263等 X的弟五長度272。該第二澆口 25ι是朝向該第二模穴U :且採用扇形並沿該第四長纟Μ設置。本實施例中，該 ^逢口 251是使用呈扇形外觀的錢口設計，但由於該 弟拉八27是呈板形的空間，因此，使用潛水式點狀進淹 見圖1G)，也可迅速將該第二模穴27填滿溶融的 J I原料而有相同效果。 參閱圖4、11，該薄型鐘電池塑膠外殼之製造方法 以下步驟： v驟70疋製備上述之該模具2〇，並將該模具裝設 於该可做雙色塑料射出的成型機上。 人參閱圖4、5、6、Η，步驟71是進行合模的動作。於 口杈過程中，該二滑塊231被該二斜銷232頂推，使該動 、靜模21、22，及該二滑塊231共同界定出該第一模穴％ (見圖5 )。 步驟72是使該射出成型機的第一個塑料射出頭，朝向 "亥第一進料口 24射入一融熔的第一塑膠原料50，使該第一 塑膠原料50經由該第一澆口 25進入該第一模穴26内。由 於該第一澆口 25是沿著該第一長度261設置，而該第—長 度261相較於該第二、三長度262、263較長，因此，相較 於自該第二、三長度262、263射料，該第一塑膠原料5〇 可更大量地被射入該第一模穴26内，且該第一澆口 25是 10 1271299 位於該第三長度263的中間’而 第-、二長度26卜262更*_ ,長度263相較於該 快速地谁兮篦 所以該第一塑膠原料50更 ^速地進入…拉穴26内部，並於該第 冷郃前即已充滿該第一模穴26内。 原枓50 步驟73是待讓第一塑, 一待造m·, 50冷卻固化後，即成為 待進仃弟一次塑料射出的第—半成品3〇。 2驟74是使該動模21相對該靜模22開模後，並於今 弟4成品30不脫模的狀態下，將該動模Μ相對該靜^ 22繞該軸線l旋轉180度。 、 Γ /閱圖7 8 9、11，步驟75是使該動模21朝向該靜 核22進行合模動作。於合模過程中，該二滑塊231被該二 斜銷扣頂推，使該動、靜模21、22，及該二滑塊如: 同界定出該第二模穴27 (見圖8)。 、 …步驟76是使該射出成型機的第個二塑料射出頭，朝向 S亥弟二進料口 241射入一融溶的第二Μ原料60 二塑膠原料60經由該第二澆口 251射入該第二模穴J内 ’此時，該第-半成品30即與該第二塑膠原# 6〇 一體，成為該第二半成品40。 為 步驟77是待該第二塑膠原才斗6〇冷卻固化’即成為該 弟一半成品40。 、 、> ν驟78疋脫模取出該第二半成品4〇後，進行該第二 半成品40的毛邊修整工作，即完成該薄型塑膠外殼的 成品。 、、工由以上的說明’可以將本發明的優點歸納如下： 11 1271299 、上第-、參閱目1、2、4,將雙色塑膠原料射出技術應用 於該厚度D較薄的該薄型塑膠外殼100之射出加工，針對 ^工物的厚度較薄、長度較長、容易產生短射的部分，及 -熔塑膠材料流動性不佳的部分，做第二次的塑膠射出加 2，即如圖11所示分為步驟72、步驟76兩步驟完成，不 而提南射出遷力與射出速度即可完成該薄型塑踢外殼100 的射出加工’該模具2G不致因過高的射出塵力與速度 短使用壽命。 、 第二、如圖6所示，將該第一澆口 25設置於該第三長 度263的中間，且採用扇形的外觀設計，使該第一塑膠^ 料50可以大里且迅速地進入該第一模力％ 0而填滿該第 —模穴26。 歸納上述，本發明之薄型鋰電池塑膠外殼之製造方法 ，利用二次射出的加工方式，且將該第一澆口乃設計為一 扇形外觀，並位於該第三長纟263的中間，使該第一塑膠 原料50可大量且快速地射入該第一模穴％内，不僅可改 善短射的現象’也可避免高射出壓力與射出速度對該模具 2〇造成的傷害，故確實能達到發明之目的。 、 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^利 範圍及發明說明内容所作之簡單的等效變化舆修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是現有-種薄型裡電池塑膠外殼的立體示意圖； 12 1271299 圖2該薄型鋰電池塑膠外殼的側面剖視示意圖； 圖3是現有該薄型鐘電池塑膠外殼製造方法的-流程 圖， 圖4是本發明薄型鍾電池塑膠外殼之製造方法一較佳 實施例的一模具於-第-角度的-剖視示意圖； 圖疋立體不思圖，說明該較佳實施例的該模具之 一第一模穴； 圖6疋立體不意圖，說明該較佳實施例的一第一半 成品，及外觀呈扇形的一第一澆口； 圖7是該較佳實施例的該模具於一第二角度的一剖視 示意圖； 圖8是一立體示意圖，說明該較佳實施例的該模具之 一笫二模穴； ' 圖9是一立體示意圖，說明該較佳實施例的—第二半 成品，及採用扇形進洗口設計的一第二澆口； 圖10疋一立體示意圖’說明該第二澆口採用潛水式點 狀進洗設計的外觀；及 圖11是該較佳實施例的一流程圖。 13 1271299The four lengths, and a fifth length parallel to the third direction, the door and the length of the four brothers, the gate is fan-shaped and disposed along the first length. (B) The mold is moved toward the static mold. (C) injecting the plastic material into the first feed port into the Chu _ and the Pingting Pass, so that the first plastic material enters the first cavity through the first washing port. (D) The first plastic material is cooled and solidified. (8) After the shaft mold is separated from the static mold, the pure mold is rotated by 180 degrees with respect to the static mold. (F) The mold is moved toward the static mold. (G) injecting a second plastic material into the second feed port, and the second plastic material enters the second cavity through the second gate. (H) whai-the plastic material is cooled and solidified. (I) Demoulding. By using a two-color plastic injection technique, two plastic shots are made, and the first gate shape is fanned and placed along the first length to avoid short shots. [Embodiment] 1271299 The foregoing and other technical contents, features and effects of the present invention will be described in conjunction with the detailed description of a preferred embodiment of the drawings. j Θ Before the present invention is described in detail, it is to be noted that in the description of π Μ , similar elements are denoted by the same reference numerals. The preferred embodiment of the method for manufacturing a plastic case of a thin lithium battery of the present invention is for manufacturing a thin two: battery plastic case 100 which can accommodate a plurality of lithium batteries (not shown). The appearance of the plastic outer casing 100 is similar to that of the conventional drawings 1 and 2. Referring to Figures 1 and 4, the thin plastic case 100 is a mold 20 having two feed ports, and is processed by a plastic injection molding machine (not shown) which can be used for two-color plastic injection and has two plastic injection heads. Manufacturing. The boring mold 20 has a movable mold 21, a static mold 22, a slider assembly 23, a first feed port 24, a second feed port 241, and a pair of first gates 25 which should be the first feed port 24, And a pair of second gates 251 that should be the second feed port 241. In this embodiment, in order to conveniently indicate the shapes of the first and second gates, 1, the rice is connected to a first semi-finished product (see FIG. 6) and the second semi-finished product 40 (see item 9). The first semi-finished product 3 is the peripheral wall u', and the second semi-finished product 40 is a combination of the peripheral wall u and the bottom wall 15. The child slider assembly 23 has two sliders 231 located at the same time in the movable mold 21, and - at the same time, the static mold 22 and the tilting pins 232 of the two sliders can be pushed up, respectively. The movable mold 21 and the static mold 22 can be driven by the injection molding machine, and gradually approached by a distant open mold (not shown), in the process of approaching 1271299. ^ Two sliders 231 are locked by the two oblique locks 232 Pushing, finally reaching a closed state of the moving, static 21, 22 joint (see Figures 4, 7). " As shown in Figures 1, 4, and 7, in the mold opening state, the movable mold 21 can be quiet, 22 by - the first angle (see Figure 4) about an axis L rotated 18 degrees ^ one Two angles (see Figure 7). During the clamping state of the first angle, the hoisting 21, the static mold 22, and the two sliders 231 & define a first mold force 26 that communicates with the younger-washing port 25 (see Fig. 5). . In the mold clamping state of the second angle, the movable mold 21, the static mold 22, and the two sliders 231 surround the second mold cavity 27 that communicates with the second gate 251 (see FIG. 8). . In this embodiment, the mold technology of the movable mold 21 and the static mold 22 is relatively rotated, and the movable and static molds 21 and 22 are relatively rotated and clamped to define the first and second mold holes 26, 27, all of which are the heating technology of the existing two-color plastic injection, the structure of the mold 20 will not be repeated here, and will only be shown schematically. As shown in Figures 1, 4, 5 and 6, the first cavity 26 is in the shape of a ring and corresponds to the shape of the peripheral wall 11 of the plastic casing 100. The first cavity 26 has a first length 261 parallel to a first direction 、, a second length 262 parallel to a second direction ,, and a third length 263 parallel to a third direction 。. The first length 261 is greater than the second length 262, and the second length 262 is greater than the third length 263. The first gate 25 is in the shape of a sector along the first length 261 and a The static surface of the statically defined portion 22 is set and located in the middle of the third length 263. As shown in Figures 1, 7, 8, and 9, the second cavity 27 is in the shape of a plate 299. The shape of the face i5 which has a plastic outer dream and 100. The second cavity has a second length 272 which is the same as the second length 262 and is parallel to the third direction U and the third length 263. The second gate 25ι is oriented toward the second cavity U: and is fan-shaped and disposed along the fourth length. In this embodiment, the gate 251 is designed to use a fan-shaped appearance, but since the slab is a plate-shaped space, the submerged point-like flooding is shown in Fig. 1G). The second cavity 27 is quickly filled with the molten JI raw material to have the same effect. Referring to Figures 4 and 11, the manufacturing method of the plastic battery case of the thin-type clock battery is as follows: v. 70疋 The above-mentioned mold 2 is prepared, and the mold is mounted on the molding machine which can be used for two-color plastic injection. Referring to Figures 4, 5, 6, and Η, step 71 is the process of clamping. During the process of the mouth, the two sliders 231 are pushed by the two oblique pins 232, so that the moving and static molds 21, 22, and the two sliders 231 jointly define the first cavity % (see FIG. 5). . Step 72 is to cause the first plastic injection head of the injection molding machine to inject a melted first plastic material 50 toward the first inlet 24, so that the first plastic material 50 passes through the first pouring. Port 25 enters the first cavity 26. Since the first gate 25 is disposed along the first length 261, and the first length 261 is longer than the second and third lengths 262, 263, compared to the second and third lengths 262, 263 shots, the first plastic material 5 〇 can be injected into the first cavity 26 in a larger amount, and the first gate 25 is 10 1271299 located in the middle of the third length 263 and the first The second length 26 262 is more * _ , the length 263 is faster than the fast 兮篦 so the first plastic material 50 enters the inside of the pull hole 26 more quickly, and is filled before the second cold 郃Inside the first cavity 26. The original step 50 is to wait for the first plastic, and after the m·, 50 is cooled and solidified, it becomes the first semi-finished product of the plastics to be injected into the younger brother. In the second step 74, after the movable mold 21 is opened relative to the static mold 22, and the current product 4 is not released from the mold, the movable mold 旋转 is rotated by 180 degrees with respect to the static axis 22 about the axis l. Γ/Reading FIG. 7 8 9 and 11, step 75 is a mold clamping operation of the movable mold 21 toward the static core 22. During the clamping process, the two sliders 231 are pushed by the two oblique pins, so that the movable and static molds 21, 22, and the two sliders define the second cavity 27 as shown in FIG. 8 (see FIG. 8). ). Step 76 is to make the first two plastic injection heads of the injection molding machine, and to inject a melted second crucible raw material 60 toward the S-Hai two feed port 241. The second plastic material 60 is injected through the second gate 251. Into the second cavity J, at this time, the first semi-finished product 30 is integrated with the second plastic raw material 6 to become the second semi-finished product 40. In step 77, the second plastic mold is cooled and solidified, that is, the half finished product 40 of the brother. After the second semi-finished product is removed from the mold, the embossing work of the second semi-finished product 40 is performed, that is, the finished product of the thin plastic outer casing is completed. According to the above description, the advantages of the present invention can be summarized as follows: 11 1271299, the above-mentioned, and the first, second, and fourth, the two-color plastic material injection technology is applied to the thin plastic case having a thin thickness D. 100 injection processing, for the thickness of the workpiece, the length of the long, easy to produce short-lived parts, and - the part of the molten plastic material flow is not good, do the second plastic injection plus 2, that is, as shown 11 is divided into two steps of step 72 and step 76. The injection processing of the thin plastic kick shell 100 can be completed without mentioning the south injection force and the injection speed. The mold 2G is not caused by excessively high dusting force and speed. Short life. Secondly, as shown in FIG. 6, the first gate 25 is disposed in the middle of the third length 263, and adopts a fan-shaped design so that the first plastic material 50 can enter the first and the first time. A mold force % 0 fills the first mold cavity 26. In summary, the manufacturing method of the plastic outer casing of the thin lithium battery of the present invention utilizes a secondary injection processing method, and the first gate is designed as a fan-shaped appearance, and is located in the middle of the third long 纟263, so that The first plastic material 50 can be injected into the first cavity % in a large amount and quickly, which not only improves the phenomenon of short shots, but also avoids the damage caused by the high injection pressure and the injection speed on the mold 2, so it can be achieved. The purpose of the invention. However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention as a simple equivalent change according to the scope of the invention and the description of the invention. Modifications are still within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a plastic outer casing of a conventional thin-type battery; 12 1271299 FIG. 2 is a side cross-sectional view showing the plastic outer casing of the thin lithium battery; FIG. 3 is a conventional manufacturing method of the plastic battery casing of the thin type battery - FIG. 4 is a cross-sectional view of a mold in a preferred embodiment of a method for manufacturing a plastic battery case of a thin-type clock battery of the present invention; FIG. 4 is a cross-sectional view showing the preferred embodiment of the preferred embodiment. a first cavity of the mold; FIG. 6 is a perspective view of a first semi-finished product of the preferred embodiment, and a first gate having a fan shape; FIG. 7 is the mold of the preferred embodiment. A schematic cross-sectional view of a second angle; FIG. 8 is a perspective view showing one of the molds of the preferred embodiment; FIG. 9 is a perspective view showing the preferred embodiment of the preferred embodiment. a second semi-finished product, and a second gate designed by using a fan-shaped inlet; FIG. 10 is a perspective view showing the appearance of the second gate using a submerged point-like wash design; and FIG. 11 is a preferred embodiment. Flow chart of an example . 13 1271299
【主要元件符號說明】 X ‘ *… •…·第一方向 24·..·. •…第 一進料口 Y.… ••…第二方向 241… …*第 二進料口 Z ·… …··第三方向 25 ·…· .…第 一澆口 D…·· •…·厚度 251… .…第 二澆口 10·… •…·薄型塑膠外殼 26*.… •…第 一模穴 11 ·… …··周壁 261… .…第 一長度 12.·.· …·♦外周面 262… ….第 -—長度 13***· …··内周面 263… ….第 三長度 14…· …··容室空間 27·*-* •…第 二模穴 15·*·* •…·底壁 271… •…第四長度 20*… ••…模具 272… …·弟五長度 21…. ……動模 30…… ….第 一半成品 22·… ……著模 40…… ，…第 二半成品 23*·*· …··滑動組件 50…… …·第 一塑膠原料 231 ** •…·滑塊 60"…. …第二塑膠原料 232 ** •…·斜銷 14[Description of main component symbols] X ' *... •...·First direction 24·..·.•...First feed port Y.... ••...Second direction 241... ...*Second feed port Z ·... ...··The third direction 25 ·...· .... First gate D...·····Thickness 251.....Second gate 10·...•...·Thin plastic case 26*.... •...first mode Hole 11 ·...············································································· Length 14...·...··Room space 27·*-* •...Second cavity 15·*·* •...·Bottom wall 271... •...4th length 20*... ••...Mold 272... Five lengths 21.... ...... moving molds 30... .... first semi-finished products 22·... ...... molds 40...,... second semi-finished products 23*·*· ...··sliding assemblies 50... ...·first plastic Raw material 231 ** •...·slider 60"....the second plastic material 232 ** •...·slant pin 14