200932394 六、發明說明： 【發明所屬之技術領域】 本發明係有關於一種用於製造方形縮頸罐之設備與方 法；特別地，有關於一種用於製造罐體上部寬度較小於下 部寬度的方形罐之方法；及係有關於一種用於容易製造大 量方形縮頸罐之設備與方法，其可減少製造時間並防止罐 體縮頸部分之起皺，以便使產品之可靠度得以改良。 【先前技術】 Q 如在本藝中通常知道的，罐係藉由滾壓板片金屬（即 被鍍以錫之板片）而被製成一本體、形成上及下板以密封 此本體之兩端^、及將此本體與此上及下板相接合以獲得 一已密封完成之罐。 具體而言，罐係藉由一種方法予以製造，而此方法包 括：一印刷步驟，根據所要之圖案印刷在鍍錫鋼板上；一 裁片步驟，將此鋼板切開成多片具有所要大小之板片；一 上/下板製造步驟，用以製成具有所要大小之上及下板； 〇 —本體熔接步驟，藉由使用銅線進行電熔接；一本體彎曲 步驟，在電熔接之後將此本體彎曲成一角度；一嵌板步 驟，將此已彎曲之本體定型並維持在一角度；一凸緣形成 步驟，將上及下端部擴寬2-3 mm以接合此本體；一接合 步驟，將上及下板分別聯結至此本體之上及下端部；一測 試步驟，將此完成品塡充以空氣並檢査是否有空氣漏出； 一打包步驟，捆紮並打包一所要數量之罐；及一堆疊步 驟，將以被打包之罐堆疊。 用此方式所製造之傳統罐具有一結構如下：鍍錫鋼板 -4- 200932394 被以一角度彎曲成四角形以形成一本體，且多個蓋板（即 上及下板）被聯結並接合以維持氣密與密封。一排放孔被 形成於上板上，以便使罐之內容物可被釋出並使用，及一 把柄被形成於中間處以便此罐可容易被攜帶。 此類之罐傳統上在製造期間或之後被塡充以一種所 要之材料並被密封。然後，此諸罐被堆疊成複數層並被運 送，或被堆疊並貯存於例如大型超市中。 如果是圓形罐（特別是圓柱形罐）之情形，頂部之直 0 徑係小於底部之直徑，以便一放在下面之罐的頂部可被裝 配至放在上面之罐的底部內（亦即圓形縮頸罐），藉此而 可將罐堆疊成許多層。 > 圓形縮頸罐可被堆疊成許多層，以便甚至在一小面積 中可堆疊並貯存大量之罐。如果罐並不被堆叠而是以單層 被貯存於戶外，則雨水或雪可能累積在罐頂上，且潮濕可 能影響內含之物質。雖然如此，如果罐被堆疊起來，則上 述之問題便可被避免。 〇 因此，本發明所揭示之方形縮頸罐具有一比底部寬之 頂部，以便使罐之頂部可被裝配至另一罐之底部內。當罐 被堆疊成許多層時，及當外來衝擊作用在罐上時，已被堆 疊之諸罐的頂部與底部間之堅固裝配可防止此諸罐輕易 地倒下。此避免了對操作者之任何傷害及諸罐之毀損，否 則其內含物將會漏出。 此一堆疊結構爲有利的，因爲：當罐自堆疊及貯存倉 庫被移出時，例如並不需要使用額外人力費時在各個罐層 之外圍表面以膠帶圍住。此外，甚至當已塡滿物質之罐被 200932394 堆叠成許多層並展示在例如超市內時，此諸罐仍維持穩 定。此將保證可容易貯存且最大化空間利用。 然而，儘管有此諸優點，但仍尙未開發出用於製造方 形縮頸罐之設備，此乃由於存在許多技術困難性（例如罐 之縮頸頂部的起鮍），而只有圓形縮頸罐可藉先前技藝予 以製造。 如果方形縮頸罐係以人工製造，則下圍之長度變成小 於上圍之長度。結果，許多皺摺將沿著罐之垂直方向被形 0 成於罐之諸隅角附近。此將降低產品之可靠度。 【發明内容】 因此，本發明被開發以解決上述發生在先前技藝中之 諸問題，且本發明提供一種用於製造方形罐之方法，而此 罐之上部寬度係小於下部之寬度，以及本發明亦提供一種 可容易地製造大量方形縮頸罐之方法與設備，其可減少製 造時間並防止罐之縮頸部分起皺，以便使產品之可靠度得 以改良。 Ο 根據本發明之一態樣，其提供一種用於製造方形縮頸 罐之設備，此設備包含：一矩形或方形外模具，其具有一 接收凹部形成於一位在一預定深度處之板面上，而此接收 凹部具有一傾斜周面；及一具有一表面之內模具，而此表 面適於與該接收凹部之周面相接觸，並係成傾斜以便對應 於該周面，藉而使得此內模具可被容納於該接收凹部中。 根據本發明之另一態樣，其提供一種用於製造方形縮 頸罐之方法，此方法包括下列步驟：（a)藉由移動驅動構 件而將內模具之第一及第二模滑向外模具之周面；（b)將 200932394 一構成方形柱狀罐之側面的板片金屬之一端部插入及壓縮 至一位於內與外模具間之間隙內；（C)藉由第一與第二模 而使板片金屬變形；（d)藉由移動驅動構件而將內模具之 第一與第二模滑至外模具之中心；及（e)從在內及外模具 間之間隙處分開該已變形之板片金屬。 如上所述，本發明之用於製造方形縮頸罐的設備爲有 利的，因爲：藉由利用一可製造方形罐之方法使得上部寬 度較小於下部寬度，此將可防止方形縮頸罐之具有較小寬 度的頂部表面產生起皴情形，並改良產品之可靠度。此外， 可在一縮短的時間下容易地製造出大量之方形縮頸罐。 【實施方式】 下文中將配合參照附圖而說明本發明之一實施例。在 下列之說明及圖式中，相同之元件符號被用以代表相同或 類似之元件，及因此針對此諸相同或類似元件之重複說明 將被省略。 第1圖係一根據本發明之一實施例，用於製造方形縮 頸罐之設備的俯視圖，而此設備具有一內模具，其係安裝 於一外模具上並適於移向此外模具之周面。第2圖係沿第 1圖中之II-II線所取以顯示剖面結構之剖面圖。第3圖係 一顯示根據本發明之一實施例，用於製造方形縮頸罐之設 備的俯視圖，而此設備具有一內模具，其係安裝於一外模 具上以便使其等可被彼此緊固在此外模具之中心附近，而 此圖中亦同時顯示第一與第二模之移動方向。第4圖沿第 3圖中之IV-IV線所取之剖面圖，其顯示剖面結構及第一與 第二模之移動方向。 200932394 參照諸圖式，根據本發明實施例之用於製造方形縮頸 罐之設備包括：一矩形或方形外模具100，其具有一接收 凹部110被形成於一位在預定深度處之板面上及一第一插 孔111被形成於接收凹部110處之中心處；一內模具200, 其包括複數個模210及220被容納於接收凹部110中並適 於沿著該板面滑向接收凹部110周圍處，而一第二插孔230 則被形成於中心處；以及一滑動驅動構件3 00，其係選擇 地經由第一插孔111而被插入第二插孔230內，以便將諸 © 模210及220滑向接收凹部110之周圍。 外模具100包含：一基板120，其係用於界定底面； 及一外框130，其被形成於基板120之頂面周緣。上，同時 朝基板120之橫向方向往上延伸至一預定高度，以便可界 定接收凹部1 1 0。 起皺防制凹部112被形成於接近接收凹部110之底面 的諸隅角在一預定深度處並延伸向外模具100內側，以便 在製造方形縮頸罐時可防止罐之諸隅角起皴。 G 當接收凹部no之周面朝橫向方向往上延伸時，此周 面亦斜向外模具100之外側。換言之，外框130之縱向截 面在一較高之高度處變得較窄。一圓形之第一插孔111延 伸穿過基板1 2 0之中心。 支撐構件140係從接收凹部110之底面的板面起朝著 外模具100之橫向方向往上延伸至一預定之高度。支撐構 件140具有一矩形橫截面，且係成徑向型式被固定地聯結 至該板面，亦即以一種使得其等之間相對於接收凹部110 之中心的角度係4 5 °之方式。 200932394 內模具200包括：一第一模210，其係由四個組件被 配置在接收凹部110之外部上且適於滑向接收凹部110之 諸隅角所組成；及一第二模220，其係由四個組件被配置 在接收凹部110之內部上且適於接觸第一模210之側面且 側面地滑向接收凹部110之側面所組成。 被配置在由具有相同形狀之四個組件所組成的第一模 210外側之外圍線具有與外模具100之接觸面的橫截面相 同之形狀。第一模210之被配置在內側的外圍線具有一突 〇 出之中心，所以可在此中心之內側界定一鈍角。 由四個具有相同形狀的組件被配置在第一模210之諸 組件間所組成之第二模220的外圍線具有一傾斜截面，以 便與被配置在第一模210內側之外圍線相啣合。第二模220 之被配置在內側的外圍線被形成爲可在此中心之內側界定 —直角。 換言之，被配置在由四個組件所組成之第一模210內 側的諸外圍線當彼此接觸時構成3 60°且在中心處突出以便 Ο 界定第二插孔230之端部被部分地切割。 與外模具100之接收凹部110的周面接觸之第一及第 二模210及220的側面係朝一方向成傾斜，以致使得截面 在第一及第二模210及220的橫向方向上之較高的高度處 變成較大。 滑動孔211及221延伸通過第一及第二模210及220 之中心並具有一矩形橫截面，所以諸支撐構件1 40可分別 地被插入。滑動孔211及221係比諸支撐構件140長了第 一及第二模.210及220之滑動距離。 200932394 滑動驅動構件300係成錐狀，所以其截面在將滑動驅 動構件300插入第一及第二插孔ill及230內之方向的一 較高高度處變成較小。與滑動驅動構件3 0 0之傾斜側面相 接觸之第二模220之側面係朝一方向成傾斜，以致使得第 二插孔230在將滑動驅動構件300插入第一及第二插孔111 及230內之方向的一較高高度處變成較窄。 一返回裝置400被安置於一用於製造方形縮頸罐之設 備的一側上，以便一旦第一及第二模210及220在朝向接 〇 收凹部110之周圍被加寬時，其等可返回至最初位置處。 返回裝置400包括：一彈簧安置凹部410，其被形成於接 收凹部110之底面上；一壓縮彈簧420，其被安置於彈簧 安置凹部410中；及一彈簧啣合凸部43 0，其朝第一及第 二模210及220之橫向方向往下突出，以便使彈簧啣合凸 部可被插入彈簧安置凹部410內，藉而接觸壓縮彈簧420 之一端部。 根據本發明之一實施例，具有上述結構之用於製造方 〇 形縮頸罐之設備係以下列之方式被組裝。 諸壓縮彈簧420被分別地安置於被形成在外模具100 之接收凹部110的底面上之彈簧安置凹部410中，且諸支 撐構件140被插入諸辉伸穿過第一及第二模210及220之 滑動孔211及221內。然後，被形成於第一及第二模210 及220之底面上的諸彈簧啣合凸部43 0被插入諸彈簧安置 凹部410內，以便可接觸諸壓縮彈簧420之一端部。 由於上述之組裝程序，使得第一及第二模210及220 係成徑向型式被交替地配置，且第一及第二模210及2 20 -10- 200932394 之側面彼此相接觸，並藉由諸壓縮彈簧420而維持朝向接 收凹部1 1 0之中心被強制彼此相抵。 —蓋板150被置於第一及第二模210及220之頂面且 被緊固至諸支撐構件140，以便防止第一及第二模210及 220在製罐之期間自諸支撐構件140上脫離。 現將說明一種用於製造方形縮頸罐之方法，其係利用 根據本發明上述的一實施例所裝設成之用於製造方形縮頸 罐的設備。 © 此設備起初開動了，且滑動驅動構件300經由第一插 孔Π1被插入第二插孔23 0內。當插置滑動驅動構件300 進行時，第二模22 0之傾斜側面接觸滑動驅動構件300之 傾斜側面，且第二模220滑向接收凹部110之外側。 當第二模220滑動時，與第二模220相接觸之第一模 210同時滑向接收凹部110之外側。在滑動驅動構件300 已被完全插入後，外模具1〇〇之內表面穩固地與內模具200 之外表面相啣合。將構成方形縮頸罐之側面的板片金屬之 © 一端部，在諸內表面之間，尤其是在介於外模具1〇〇與內 模具2 0 0間之間隙中被壓縮。接著，此端部被變形並朝一 方向傾斜，以便使入口沿著位於外模具100與內模具200 間之間隙變窄。外模具1 〇〇之起皴防制凹部11 2向外拓寬 此端部一預定之距離，並防止接近方形縮頸罐之諸隅角起 皺。 在此板片金屬之端部已被變形並朝一方向傾斜以致使 入口變窄之後，滑動驅動構件300逐漸地自第二插孔230 處脫離，以便使此板片金屬與外及內模具1〇〇及200相分 > 200932394 離。然後，第二模220藉由來自諸壓縮彈 移向接收凹部110之中心。因此，第一模 壓縮彈簧420之彈力而移向接收凹部110 具200之外表面與外模具100之內表面分 變形之板片金屬被移去。這便完成了此程, 製造完整罐體之其餘製程係相同於習 其已在針對先前技藝之說明中敘述過，故 予以省略。 φ 雖然本發明之一示範性實施例已爲了 描述，但凡熟習本藝之人士將可明白各種 取代係屬可行的，而其等均不脫離如所附 揭示之本發明的範圍及精神。 【圖式簡單說明】 本發明之上述及其他目的、特徵及優 詳細說明並配合所附圖式而變得更顯而易 圖中： ® 第1圖係根據本發明之一實施例用於 之設備的俯視圖，此設備具有一內模具， 上並適於移向此外模具之周面； 第2圖係沿第1圖中之II-II線所取以 剖面圖； 第3圖係顯示根據本發明之一實施例 縮頸罐之設備的俯視圖，此設備具有一內 於一外模具上.以便使其等可被彼此緊固在 附近，而此圖中亦同時顯示第一與第二模 簧420之彈力而 210藉由來自諸 之中心，且內模 離。接著，此經 序。 知製罐方法者， 其重複之說明將 說明之目的而被 之修改、附加及 申請專利範圍所 點將可由上列之 知，而在此諸附 製造方形縮頸罐 安裝於一外模具 顯示剖面結構之 之用於製造方形 模具，其係安裝 此外模具之中心 之移動方向；及 -12- 200932394 第4圖係沿第3圖中之IV-IV線所取之剖面圖，其顯 示剖面結構及第一與第二模之移動方向。 【主要元件符號說明】200932394 VI. Description of the Invention: [Technical Field] The present invention relates to an apparatus and method for manufacturing a square neck can; in particular, a method for manufacturing a tank upper width smaller than a lower width A method of square cans; and an apparatus and method for easily manufacturing a large number of square necked cans, which can reduce manufacturing time and prevent wrinkling of the neck portion of the can body, so that the reliability of the product can be improved. [Prior Art] Q As is generally known in the art, a can is formed into a body by rolling a sheet metal (i.e., a plate plated with tin) to form upper and lower plates to seal the body. Ending the body and engaging the upper and lower plates to obtain a sealed can. Specifically, the can is manufactured by a method comprising: a printing step of printing on a tin-plated steel plate according to a desired pattern; and a cutting step of cutting the steel plate into a plurality of plates having a desired size a top/bottom plate manufacturing step for forming a desired size and a lower plate; a body-body fusion step for electrical fusion by using a copper wire; and a body bending step for the body after electrofusion Bending at an angle; a paneling step of shaping and maintaining the bent body at an angle; a flange forming step of widening the upper and lower ends by 2-3 mm to engage the body; a joining step, And the lower plate is respectively coupled to the upper and lower ends of the body; a test step of filling the finished product with air and checking for air leakage; a packaging step of bundling and packing a required number of cans; and a stacking step, Stacked in packed cans. The conventional can manufactured in this manner has a structure in which a tin plated steel plate -4-200932394 is bent at an angle into a quadrangular shape to form a body, and a plurality of cover plates (i.e., upper and lower plates) are joined and joined to maintain Airtight and sealed. A discharge opening is formed in the upper plate so that the contents of the can can be released and used, and a handle is formed in the middle so that the can can be easily carried. Such cans have traditionally been filled with a desired material and sealed during or after manufacture. The cans are then stacked into a plurality of layers and shipped, or stacked and stored, for example, in a large supermarket. In the case of a round can (especially a cylindrical can), the straight zero diameter of the top is smaller than the diameter of the bottom so that the top of the can placed below can be fitted into the bottom of the can placed above (ie A round neck can) whereby the cans can be stacked into a number of layers. > Round neck cans can be stacked in a number of layers so that even a small area can be stacked and stored in a small area. If the cans are not stacked but are stored outdoors in a single layer, rain or snow may accumulate on the can top and moisture may affect the contained material. Nonetheless, if the cans are stacked, the above problems can be avoided. 〇 Accordingly, the square necked can disclosed herein has a top that is wider than the bottom so that the top of the can can be fitted into the bottom of the other can. When the cans are stacked in a number of layers, and when an external impact is applied to the can, the strong assembly between the top and bottom of the stacked cans prevents the cans from falling down easily. This avoids any damage to the operator and damage to the cans, otherwise the contents will leak out. This stacking structure is advantageous because when the cans are removed from the stacking and storage bins, for example, it is not necessary to use additional labor costs to enclose the peripheral surfaces of the respective can layers with tape. In addition, the cans remain stable even when the cans that have been filled with material are stacked into a number of layers by 200932394 and displayed in, for example, a supermarket. This will ensure easy storage and maximize space utilization. However, despite these advantages, equipment for the manufacture of square necked cans has not yet been developed, due to a number of technical difficulties (such as creping of the neck of the can neck), but only round necking Cans can be manufactured by prior art. If the square neck can is artificially manufactured, the length of the lower circumference becomes smaller than the length of the upper circumference. As a result, many wrinkles will be formed in the vertical direction of the can to form near the corners of the can. This will reduce the reliability of the product. SUMMARY OF THE INVENTION Accordingly, the present invention has been developed to solve the above-mentioned problems occurring in the prior art, and the present invention provides a method for manufacturing a square can, wherein the upper width of the can is smaller than the width of the lower portion, and the present invention There is also provided a method and apparatus for easily manufacturing a large number of square neck cans which can reduce manufacturing time and prevent wrinkling of the neck portion of the can to improve the reliability of the product. According to one aspect of the present invention, there is provided an apparatus for manufacturing a square necked can, the apparatus comprising: a rectangular or square outer mold having a receiving recess formed in a plate at a predetermined depth And the receiving recess has an inclined circumferential surface; and a mold having a surface adapted to be in contact with the circumferential surface of the receiving recess and inclined to correspond to the circumferential surface, thereby making An inner mold can be received in the receiving recess. According to another aspect of the present invention, there is provided a method for manufacturing a square neck can, the method comprising the steps of: (a) sliding the first and second molds of the inner mold outward by moving the drive member (b) inserting and compressing one end of a sheet metal forming a side of a square cylindrical can in 200932394 into a gap between the inner and outer dies; (C) by first and second Moulding to deform the sheet metal; (d) sliding the first and second molds of the inner mold to the center of the outer mold by moving the drive member; and (e) separating the gap between the inner and outer molds Deformed sheet metal. As described above, the apparatus for manufacturing a square neck can of the present invention is advantageous because the upper width is made smaller than the lower width by a method of manufacturing a square can, which prevents the square neck can The top surface with a smaller width creates a creping situation and improves the reliability of the product. In addition, a large number of square neck cans can be easily manufactured in a short period of time. [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following description and drawings, the same reference numerals are used to refer to the same or similar elements, and thus repeated description of the same or similar elements will be omitted. 1 is a top plan view of an apparatus for manufacturing a square neck can according to an embodiment of the present invention, the apparatus having an inner mold mounted on an outer mold and adapted to move toward the periphery of the outer mold surface. Fig. 2 is a cross-sectional view taken along line II-II of Fig. 1 to show the cross-sectional structure. Figure 3 is a plan view showing an apparatus for manufacturing a square neck can according to an embodiment of the present invention, and the apparatus has an inner mold which is attached to an outer mold so that it can be tightly held to each other. It is fixed near the center of the mold, and the moving directions of the first and second molds are also displayed in this figure. Fig. 4 is a cross-sectional view taken along line IV-IV of Fig. 3, showing the sectional structure and the moving directions of the first and second modes. 200932394 Referring to the drawings, an apparatus for manufacturing a square neck can according to an embodiment of the present invention includes: a rectangular or square outer mold 100 having a receiving recess 110 formed on a panel at a predetermined depth And a first insertion hole 111 formed at a center of the receiving recess 110; an inner mold 200 including a plurality of dies 210 and 220 received in the receiving recess 110 and adapted to slide along the plate surface toward the receiving recess Around the 110, a second receptacle 230 is formed at the center; and a sliding drive member 00 is selectively inserted into the second receptacle 230 via the first receptacle 111 for The dies 210 and 220 slide toward the periphery of the receiving recess 110. The outer mold 100 includes: a substrate 120 for defining a bottom surface; and an outer frame 130 formed on a periphery of a top surface of the substrate 120. Upward, at the same time, extending upward in the lateral direction of the substrate 120 to a predetermined height so as to define the receiving recess 110. The crease preventing recess 112 is formed at a corner close to the bottom surface of the receiving recess 110 at a predetermined depth and extends to the inner side of the outer mold 100 to prevent the corners of the can from being creased when the square neck can is manufactured. G When the circumferential surface of the receiving recess no is extended upward in the lateral direction, this circumferential surface is also inclined to the outside of the mold 100. In other words, the longitudinal section of the outer frame 130 becomes narrower at a higher height. A circular first receptacle 111 extends through the center of the substrate 120. The support member 140 extends upward from the plate surface of the bottom surface of the receiving recess 110 toward the lateral direction of the outer mold 100 to a predetermined height. The support member 140 has a rectangular cross section and is fixedly coupled to the plate surface in a radial pattern, i.e., in such a manner that it is at an angle of 45 degrees with respect to the center of the receiving recess 110. 200932394 The inner mold 200 includes: a first mold 210 composed of four components disposed on the outer side of the receiving recess 110 and adapted to slide toward the corners of the receiving recess 110; and a second mold 220 It is composed of four components disposed on the inside of the receiving recess 110 and adapted to contact the side of the first die 210 and laterally slid to the side of the receiving recess 110. The peripheral line disposed outside the first mold 210 composed of four members having the same shape has the same shape as the cross section of the contact face of the outer mold 100. The peripheral line of the first die 210 disposed on the inner side has a center of a protrusion, so that an obtuse angle can be defined inside the center. A peripheral line of the second die 220 composed of four components having the same shape disposed between the components of the first die 210 has an inclined section to fit the peripheral line disposed inside the first die 210. . The peripheral line of the second mold 220 disposed on the inner side is formed to be defined at a right angle inside the center. In other words, the peripheral lines disposed on the inner side of the first mold 210 composed of four components constitute 3 60° when they are in contact with each other and protrude at the center so that the end portion defining the second insertion hole 230 is partially cut. The sides of the first and second molds 210 and 220 that are in contact with the circumferential surface of the receiving recess 110 of the outer mold 100 are inclined in a direction such that the cross section is higher in the lateral direction of the first and second molds 210 and 220. The height becomes larger. The sliding holes 211 and 221 extend through the centers of the first and second dies 210 and 220 and have a rectangular cross section, so that the support members 140 can be inserted separately. The sliding holes 211 and 221 are longer than the support members 140 by the sliding distances of the first and second molds .210 and 220. 200932394 The slide driving member 300 is tapered, so that its cross section becomes smaller at a higher height in the direction in which the slide driving member 300 is inserted into the first and second insertion holes ill and 230. The side surface of the second mold 220 that is in contact with the inclined side surface of the sliding drive member 300 is inclined in a direction such that the second insertion hole 230 inserts the sliding driving member 300 into the first and second insertion holes 111 and 230. A higher height in the direction becomes narrower. A return device 400 is disposed on a side of the apparatus for making a square neck can, such that once the first and second molds 210 and 220 are widened toward the periphery of the recessed recess 110, Return to the original location. The return device 400 includes: a spring seating recess 410 formed on the bottom surface of the receiving recess 110; a compression spring 420 disposed in the spring seating recess 410; and a spring engaging projection 43 0, which faces The lateral direction of the first and second dies 210 and 220 protrudes downward so that the spring engaging projection can be inserted into the spring seating recess 410, thereby contacting one end of the compression spring 420. According to an embodiment of the present invention, an apparatus for manufacturing a rectangular neck can having the above structure is assembled in the following manner. The compression springs 420 are respectively disposed in the spring seating recesses 410 formed on the bottom surface of the receiving recess 110 of the outer mold 100, and the support members 140 are inserted into the first and second molds 210 and 220. The sliding holes 211 and 221 are inside. Then, the spring engaging projections 430 formed on the bottom surfaces of the first and second dies 210 and 220 are inserted into the spring arranging recesses 410 so as to be contactable with one end of the compression springs 420. Due to the assembly procedure described above, the first and second dies 210 and 220 are alternately arranged in a radial pattern, and the sides of the first and second dies 210 and 2 20 -10- 200932394 are in contact with each other by The compression springs 420 are forced to abut each other toward the center of the receiving recess 1 1 0 . a cover plate 150 is placed on the top surfaces of the first and second dies 210 and 220 and fastened to the support members 140 to prevent the first and second dies 210 and 220 from being self-supporting members 140 during canning. Get out of the way. A method for manufacturing a square neck can is now described which utilizes an apparatus for manufacturing a square neck can according to the above-described embodiment of the present invention. © This device is initially activated, and the slide driving member 300 is inserted into the second insertion hole 230 via the first insertion hole Π1. When the insertion of the slide driving member 300 is performed, the inclined side surface of the second mold 22 contacts the inclined side surface of the slide driving member 300, and the second mold 220 slides toward the outer side of the receiving recess 110. When the second die 220 slides, the first die 210 in contact with the second die 220 simultaneously slides toward the outer side of the receiving recess 110. After the sliding drive member 300 has been fully inserted, the inner surface of the outer mold 1b is firmly engaged with the outer surface of the inner mold 200. The one end portion of the sheet metal constituting the side of the square neck can is compressed between the inner surfaces, particularly between the outer mold 1 and the inner mold 200. Then, the end portion is deformed and inclined in one direction to narrow the entrance along the gap between the outer mold 100 and the inner mold 200. The outer mold 1 is smashed and the concave portion 11 2 is widened outwardly. This end portion is a predetermined distance and prevents the corners of the square necked can from being wrinkled. After the end of the sheet metal has been deformed and inclined in one direction to narrow the inlet, the sliding drive member 300 is gradually detached from the second insertion hole 230 so that the sheet metal and the outer and inner molds are folded. 〇 and 200 points > 200932394 away. Then, the second die 220 is moved toward the center of the receiving recess 110 by the compression bombs. Therefore, the elastic force of the first mode compression spring 420 is moved toward the receiving recess 110. The sheet metal on which the outer surface of the outer surface of the outer surface of the outer surface of the outer surface of the outer surface of the outer surface of the outer surface of the outer surface This completes the process, and the rest of the process for making the complete tank is the same as that described in the previous description of the prior art and is therefore omitted. Although an exemplary embodiment of the present invention has been described, it will be understood by those skilled in the art that the present invention may be practiced without departing from the scope and spirit of the invention as disclosed. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings. a top view of the apparatus, the apparatus having an inner mold adapted to move toward the peripheral surface of the further mold; Fig. 2 is a cross-sectional view taken along line II-II of Fig. 1; DETAILED DESCRIPTION OF THE INVENTION A top view of an apparatus for constricting cans having an inner mold on an outer mold so that it can be fastened to each other in the vicinity, and the first and second springs are simultaneously shown in the figure. The elasticity of 420 is 210 and the inner mold is separated by the center. Then, this is the order. The method of making the cans, the repeated description of which will be modified, attached and the scope of the patent application will be as described above, and the square necked cans are mounted on an outer mold display section structure. It is used to manufacture a square mold, which is installed in addition to the moving direction of the center of the mold; and -12-200932394. Fig. 4 is a sectional view taken along line IV-IV in Fig. 3, showing the sectional structure and the The direction of movement of the first and second modes. [Main component symbol description]
100 外 模 具 110 接 收 凹 部 111 第 一 插 孔 112 起 皺 防 制 凹 部 120 基 板 13 0 外 框 140 支 撐 構 件 1 50 蓋 板 200 內 模 具 2 10 第 一 模 2 11 滑 動 孔 220 第 二 模 221 滑 動 孔 230 第 二 插 孔 300 滑 動 驅 動 構 件 400 返 回 裝 置 4 10 彈 簧 安 置 凹 部 420 壓 縮 彈 簧 430 彈 簧 啣 合 凸 部 -13-100 outer mold 110 receiving recess 111 first jack 112 wrinkle preventing recess 120 substrate 13 0 outer frame 140 support member 1 50 cover 200 inner mold 2 10 first mold 2 11 sliding hole 220 second mold 221 sliding hole 230 Second jack 300 sliding drive member 400 return device 4 10 spring seating recess 420 compression spring 430 spring engaging projection 13-