201223659 六、發明說明： c發明所眉·^技術領域]1 發明領域 本發明係有關一種依據獨立申請專利範圍第1項的前 言部份之用以形成一條料的前端部之方法。 發明背景 此一方法係可例如由WO 2010/040238 Α1專利得知。圓 形金屬模製零件係被連續地製造，其中有一金屬條料會被 饋經一基模進入一成形模中，該條料的前端部會在該成形 模中被軸向地壓縮而形成一碟片，且該碟片接著會被以一 冲壓器穿透，並最後由該條料分開。在該成形過程期間， 該條料係被以一夾緊裝置保持軸向固定，而使該條料不能 沿著軸向移開。在一實施例中該爽緊裝置是由二或更多個 夾顎所組成，其會夾抵在該條料的圓周上。其會被軸向地 向後及向前驅動，且同時其亦被用來饋進該條料。 為保證所被製造的模製零件之尺寸精確度，即在該成 形模中形成之祕制料，其為目形使該基模或其導孔 可複製地被填滿，因此在饋人該條料之後，—固定量的材 料艮㊉會存在於销形模巾。^於實際上該條料之粗度的 變異不能完全被排除’故依據傳統的方法該基模之可複製 的充填不能怪久被保證。201223659 VI. INSTRUCTIONS: C FIELD OF THE INVENTION The present invention relates to a method for forming a front end portion of a strip according to the introductory portion of the first application of the independent patent application. BACKGROUND OF THE INVENTION This method is known, for example, from the WO 2010/040238 专利1 patent. The circular metal molded part is continuously manufactured, wherein a metal strip is fed through a base mold into a forming mold, and the front end portion of the strip is axially compressed in the forming mold to form a The disc, and the disc is then penetrated by a punch and finally separated by the strip. During the forming process, the strip is held axially fixed by a clamping device so that the strip cannot be removed axially. In one embodiment the cushioning device is comprised of two or more jaws that are clamped against the circumference of the strip. It will be driven axially backwards and forwards, and at the same time it is also used to feed the strip. In order to ensure the dimensional accuracy of the molded part to be manufactured, that is, the secret material formed in the forming mold, which is a mesh shape, the basic mold or its guide hole can be reproducibly filled, and therefore After the strip, a fixed amount of material will be present in the pin-shaped towel. ^ In fact, the variation of the thickness of the strip cannot be completely excluded. Therefore, according to the conventional method, the replicable filling of the basic model cannot be guaranteed for a long time.
C發明内容：J 發明概要 201223659 因此本發明的目的係為改良在開頭所提到的該種方 去以使該基模之一受限定且可複製的充填能被達成。同 時’藉由依據本發明的方法，將<避免使該夾緊裝置中的 條料被推出而進入夾顎之間的連接處中。 此問題會被依據本發明的方法解決，其係被界定於獨 立申叫專利範圍第i項中。本發明之特別較佳的實施例和形 式係被示於附屬項的申請專利範園中。 乂山本發明的貫質在於如下所述：在—用以形成一條料之 而ρ的方法中，該條料係被沿其縱軸的方向以一受限定 ^長度饋進穿過―固定的基模，其具有—導孔會延伸貫穿 全^，而進入一成形模中，且該端部會遭受一軸向壓縮力 而變形於該成形模中。又該條料會被導經―爽緊裝置，其 具有至少二夾顎。在該夾緊裝置的關閉狀態時，該等夾顎 會在分開平面處互相接合，而要開啟該夾緊裝置時係可實 質上^向於該條料的縱軸移動分開，且要關縣失緊裝置 寺係可實質上徑向地彼此相對壓抵1條料在該端部成形 期間係被以該夾緊裝置軸向地固定，該裝置會夾抵於其圓 周上。一條料會被使用，其截面形狀相較於該基模之導孔 的戴面形狀具有平坦區域及/或凹部等，在該等平坦區域及 /或凹部之間具有一比該基模之導孔的截面形狀更大的直 控。該失緊裝置於關閉狀態時在其面向該基模的一端之内 截面形狀係對應於該基模之導孔的戴面形狀，或稍微較窄 些。該條料會被引入該夾緊裝置中，而使該等平坦區域及/ 或凹部來到位於該夾緊裝置之夾顎的分開平面之區域中。 4 201223659 該條料嗣會被以該夾緊裝置呈徑向地夾壓， 叩使其套塞於 該基模的導孔中。 藉著使用具有平坦及/或凹陷截面區域的條料，及借助 於該夾緊裝置對該條料的夾壓，該基模能被連續且複製地 充填，而使要被製造的模製零件恆可得到相同量的材料， 因此其尺寸精確度能被保證。此外，條料能夠以一較大的 直徑容差來被使用，其會降低該材料的成本。將該等平坦 區域及/或凹部調整至該等夾顎的分開平面上，會在該等夾 顎壓合在一起時，及當藉由冲壓器對該條料施加壓力時， 阻止材料能被推出該等夾顎之間。 依據本發明的方法之一較佳實施例，該條料會被製成 一截面形狀，其係只在被以一截面變形裝置引入該夾緊裝 置之前賦具該等平坦區域及/或凹部。此相較於使用預先成 开> 的條料，乃具有該條料不必首先相對於該夾緊裝置來被 疋向的優點。而該條料的截面形狀較好係藉純或鍵子， 或利用一漸縮模或夾顎等來製成。 依據本發明的方法之一特別較佳的實施例，一夾緊裝 置會被使用，其夹顎在它們抓住該條料_表面上係設有 會增加摩擦的結構物。尤其是凸肋。該等會增加失顎之摩 擦的結構物能確使該條料的材料流會比在沒有該等結構物 的夾顎(2—有相同的夾顎軸向長度)時受到更多的阻抗。此可 減少該等失頸和夾緊裝置的所需輪向長度，其相關於該夾 緊裝置的其匕功能係為一優點（例如在軸向調整時有較低 慣性）。 ^3659 孔會、，依據本發明的方法係被促引成使該基模的導 ，該條制材料輯填滿，其乃對該條料 釉向壓力的結果。 填滿，料佳的是，若該爽緊裝置係被該材料流部份地 該填篇其為軸向施加壓力於該條料之端部的結果，則其中 的距離2&度遍及該夾緊裝置的#向長度會隨著離該基模 選成〜 n &好是’該夾緊裝置的軸向長度係被 的^使該材料流不會達到該爽緊裝置之面向離開該基模 Μ等。错著充填該夾緊裝置，該條料會在該夾緊裝置内 幾平垣區域或凹陷區域中逐漸變得更粗厚，直到其最 戎+達到該基模之導孔的尺寸。 用，=據本發明的方法之另_實施例，一炎緊農置會被使 '時的餘隙内寬度，在其面向該基模的一 =::匕在其面向離開該基模的—端處更大，其中該失緊裝 御二具有―實質上呈錐形的内壁，其同樣地能被設具會 摩擦的結構物。另—種相對該材料流的阻力之增加係 ° :下也達成.將4基模的導孔設計㈣微加寬，較好 是呈錐形地，沿朝向該成形模的方向遍及其長度。 依據本發明的方法之一較佳實施例，-夾緊裝置會被 制，其抓住該條料的内壁具有二或更多_向偏m交 好疋實貝上呈錐形的區段。X ’該夾緊裝置的爽顎較好係 被人刀為—或更多個互相抽向排列的塊段。後者可使該炎 緊裝置與其失韻能更容易製造。 據本t㈣料係可使料遍及冷成形至熱成形的 201223659 整個溫度範圍。 圖式簡單說明 以下，依據本發明的方法將會參照所附圖式藉由不同 的實施例來被更詳細說明。所示係為： 第1圖示意地示出一成形裝置的必要構件； 第2圖為一條料沿第1圖之II-II線旋轉90°的截面圖； 第2a、b圖為一夾緊裝置於一開啟和關閉狀態與條料沿 第1圖之II-II線旋轉90°的兩個截面圖； 第3a圖為該夾緊裝置在關閉狀態與條料沿第1圖之 Illa-IIIa線旋轉90°的截面圖； 第3b圖為一基模與條料沿第1圖之Illb-IIIb線旋轉90° 的截面圖； 第4a〜f圖為該條料之各種不同的截面形狀； 第5a〜e圖為一基模，一夾緊裝置和條料在本發明的方 法中之五個不同的相態； 第6a〜c圖為三個示出該條料之流動情況的略圖；及 第7圖為一穿過次分成塊段之夾緊裝置的軸向截面圖。 I：實施方式3 較佳實施例之詳細說明 以下規則適用於後述的說明：若標號在一圖中被給予 以使該等圖式清楚，但未在說明部份中提及何者係與其直 接相關聯，則要參照先前或於後說明部份中的解釋。相反 地，為避免使圖式超載，較無關於一須立即瞭解的標號並 不會被編入所有圖式中。在此情況下要參考其它圖式。 201223659 …第！圖係示意地示出一適合用以實施本發明的方法之 成形裝置’其中只有該成形裝置的一些部件，它們是瞭解 本發明所必要的，部份呈軸向截面者，會Wu面 變形裝置Q’—夾”置K，—固定導件或所謂的基模B， -成形权Μ ’及-冲壞器s等可被看出同細於— 地排列。-條料被以R標示會同轴地延伸穿過該截面變形裝 置Q’該夾緊裝置K，和該基模㈣伸人該成形模μ中，其 中該條料R伸入該成形模财的前端部段 、，、 該截面變形農㈣係例如被設計成-漸^；：拉 模)。但其亦可被設計為-滚札機細機，或成為二 具有夾獅夾«置或缝裝置，隱^ 截㈣形裝置Q會變形被饋入之例如圓形、筒狀條料； 面田祕枓通過時，係例如呈第4b〜_中所示的截面 形狀之-種。後者的細節會進—步說明於後。 該夾緊裝置κ包含二或更多個夾顎圍繞誘條料r排 列’其在該爽緊裝置的關閉狀態時會互相接合於分開平 面。在第1、2a、2b和3a圖的實施例中，該炎緊裝置包含二 個夾顎10和20 ’它們的分開平面在第2b圖中係以τ表示^ 1圖不出該夾顎1〇在該等分開平面τ之一頂視圖中。故於此 它們是在該圖的平面中。該等夾顎1〇和2〇係可徑向於該軸 線A互相移動分開，以開啟該夾緊裝置κ，而要關閉該夹緊 裝置Κ時可對應地被互相徑向地壓抵。該等夾顎比和2〇的移 動及該夾緊裴置Κ的開啟與關閉係以傳統的驅動裝置來進 行，在第2a圖中被以雙箭頭12和22符號表示。該爽緊裝置κ 201223659 係附加地成為可整體軸向移動的。該所需的驅動裝置係為 傳統的設計，且在第1圖中以一雙箭頭11符號表示。該夾緊 裝置K在關閉狀態的餘隙内徑係以d3表示（第2b和3a圖）。 該基模B具有一導孔30,其會延伸貫穿全程並同軸於轴 線A，它的餘隙内徑係以表示（第北圖）。 該成形模Μ係可垂直於軸線A移動，俾能在成形之後剪 除位於其内之該條料的端部re，其乃為該條料R的殘餘部 份。該成形模Μ的橫向移動係以傳統的驅動裝置來進行， 其在第1圖中係以一雙箭頭40符號表示。 該冲壓益S係可同軸於軸線八移動，且相關的截面係被 依該成形模Μ的域面形狀調整。該條料R的前端部心可藉 由該冲壓ns來軸向地接受—壓力，而變形於該成形模m 中。該冲壓器s的運動及對該端部Re施加壓力係以習知的驅 動裝置來進行’其在第1BI巾係以雙箭頭5Q符號表示。 依據本發明的方法之概括過程如下： 由該條料R之—輛向狀態開始，關閉的失緊裝置K和條 料R’其是軸向固定的，依據第環，該冲壓HS會壓抵該條 料R的前端叫。該端部&會因施加其上的壓力而在該成 形模Μ中被形成-模製成型零件。嗣該冲壓器s會移退，且 該成形·會橫向於該轴線八移動，而使該條料的成形端部 RE(即被製成的成型零件），其係位於模_，會被由該條料 R的其餘部份錄。在該細彡的端部或成型零件被移出該成 形模Μ外之後，則又會回到其原來狀態。依據第關的情 況會被達成，而在&a〜6e圖帽_和冲壓⑸不再被示 201223659 出。然後’該夾緊裝置K會開啟（第5b圖）’並移退—限定長C SUMMARY OF THE INVENTION: SUMMARY OF THE INVENTION SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to improve the above-described aspects of the invention so that one of the defined and reproducible fillings of the basic mold can be achieved. At the same time, by the method according to the invention, <<>> avoids the strips in the clamping device being pushed out into the joint between the jaws. This problem is solved by the method of the present invention, which is defined in item i of the patent application scope. Particularly preferred embodiments and forms of the invention are shown in the patent application section of the accompanying claims. The quality of the invention is as follows: In the method for forming a material and ρ, the strip is fed through the fixed base in a direction along its longitudinal axis with a defined length. The mold has a guide hole extending through the entire mold to enter a forming mold, and the end portion is subjected to an axial compressive force to be deformed into the forming mold. Again, the strip will be guided through a "squeezing device" having at least two jaws. In the closed state of the clamping device, the clamping jaws are engaged with each other at a separate plane, and when the clamping device is to be opened, the longitudinal axis of the strip can be moved substantially apart, and the county is to be closed. The detent device temples can be pressed radially against each other by a strip of material that is axially secured by the clamping device during the formation of the end portion, the device being clamped against its circumference. a strip of material having a cross-sectional shape having a flat area and/or a recess or the like compared to the shape of the guide hole of the base mold, and having a guide between the flat areas and/or the recesses The direct control of the cross-sectional shape of the hole is larger. The cross-sectional shape of the detent device in its closed state facing one end of the base mold corresponds to the wear shape of the guide hole of the base mold, or is slightly narrower. The strip is introduced into the clamping device such that the flat regions and/or recesses come into the region of the separate plane of the jaws of the clamping device. 4 201223659 The strip is radially clamped by the clamping device and clamped into the guide hole of the base mold. By using a strip having a flat and/or recessed cross-sectional area, and by clamping the strip by means of the clamping device, the base mold can be continuously and reproducibly filled, thereby molding the part to be manufactured The same amount of material is obtained, so the dimensional accuracy can be guaranteed. In addition, the strip can be used with a large diameter tolerance which reduces the cost of the material. Adjusting the flat regions and/or recesses to the separate planes of the clips prevents material from being trapped when the clips are pressed together and when pressure is applied to the strip by the punch Launch between these clips. In accordance with a preferred embodiment of the method of the present invention, the strip is formed into a cross-sectional shape that is applied to the flat regions and/or recesses only prior to introduction into the clamping device by a cross-sectional deformation device. This is advantageous in that the strip is not necessarily first twisted relative to the clamping device as compared to the strip using the pre-opening >. The cross-sectional shape of the strip is preferably made by pure or key, or by a tapered mold or a pinch or the like. In accordance with a particularly preferred embodiment of the method of the present invention, a clamping device can be used which is clamped to the surface on which they grip the strip to provide friction-increasing structures. Especially ribs. These structures, which increase the friction of the flash, ensure that the material flow of the strip is more resistant than when there is no clip of the structure (2 - having the same axial length of the clip). This reduces the required wheel length of the neck loss and clamping device, which is an advantage associated with the clamping function of the clamping device (e.g., lower inertia during axial adjustment). ^3659 The method according to the present invention is promoted to cause the guide of the base mold to be filled, which is the result of the glaze pressure on the strip. Filling, it is preferred that if the refreshing device is partially filled with the material by applying pressure to the end of the strip, the distance 2 & The #direction length of the compacting device will be selected from the base mold to be ~ n & well, 'the axial length of the clamping device is such that the material flow does not reach the direction of the cooling device leaving the base Simulation and so on. The clamping device is erroneously filled, and the strip gradually becomes thicker in several flat regions or recessed regions in the clamping device until its maximum 戎+ reaches the size of the guide hole of the base mold. According to another embodiment of the method of the present invention, the width of the clearance in the case of a sturdy, the width of the clearance in the face, in the face of the base mold facing the base mold - the end is larger, wherein the unloading device has a "substantially tapered inner wall" which can likewise be provided with a structure that will rub. Alternatively, the increase in resistance to the flow of the material is also achieved by lowering the guide hole design (4) of the 4 base mold, preferably in a tapered shape, over its length in the direction toward the forming mold. In accordance with a preferred embodiment of the method of the present invention, a clamping device is formed which grips the inner wall of the strip with two or more y-middle portions which are tapered on the scallop. The X''s gripping device is preferably sturdy by a knife-or a plurality of segments that are aligned with each other. The latter makes it easier to manufacture the inflamed device and its rhythm. According to this t (four) material system, the material can be cold-formed to the hot-formed 201223659 temperature range. BRIEF DESCRIPTION OF THE DRAWINGS In the following, the method according to the invention will be explained in more detail by means of different embodiments with reference to the drawings. The drawings are: Figure 1 schematically shows the necessary components of a forming device; Figure 2 is a cross-sectional view of a strip rotated 90° along the line II-II of Figure 1; Figure 2a, b shows a clamping The device is in an open and closed state and two sections of the strip rotated 90° along the line II-II of Fig. 1; Fig. 3a shows the clamping device in the closed state and the strip along the Illa-IIIa of Fig. 1. A cross-sectional view in which the wire is rotated by 90°; Fig. 3b is a cross-sectional view in which a base mold and a strip are rotated by 90° along the Illb-IIIb line of Fig. 1; Figs. 4a to f are various cross-sectional shapes of the strip; Figures 5a to e are a basic mold, a clamping device and a strip in five different phases in the method of the present invention; Figures 6a to 5c are three sketches showing the flow of the strip; And Figure 7 is an axial cross-sectional view of a clamping device that passes through the sub-block segments. I: Embodiment 3 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following rules are applicable to the following description: if the reference numerals are given in the drawings to make the drawings clear, but not mentioned in the description section, which is directly related thereto In conjunction with the explanations in the previous or subsequent sections. Conversely, to avoid overloading the schema, there is nothing more relevant to a label that needs to be understood immediately and will not be incorporated into all schemas. In this case, refer to other drawings. 201223659 ...第! The figure schematically shows a forming device suitable for carrying out the method of the invention, in which only some parts of the forming device are necessary, which are necessary for understanding the invention, and some of which are axially cross-section, will be a Wu-face deformation device. Q'-clip" set K, - fixed guide or so-called basic mold B, - forming right Μ 'and - rusher s, etc. can be seen as fine--arranged. - strips are marked with R Coaxially extending through the section deforming device Q', the clamping device K, and the base mold (4) extending into the forming mold μ, wherein the strip R extends into the front end portion of the forming mold, The section deformation farmer (4) is designed, for example, to be a progressive mold; but it can also be designed as a rolling machine, or as a two-piece lion clip «set or slit device, hidden ^ (four) shape The device Q is deformed to be fed into, for example, a circular, cylindrical strip; when the surface is passed, it is, for example, a cross-sectional shape as shown in 4b to _. The details of the latter are explained in The clamping device κ comprises two or more clips arranged around the strip of stripping material r, which are mutually in the closed state of the tightening device Engaged in a split plane. In the embodiment of Figures 1, 2a, 2b and 3a, the infirmation device comprises two jaws 10 and 20' whose respective planes are indicated by τ in Figure 2b. The clips 1 不 are not in the top view of the split planes τ. Therefore, they are in the plane of the figure. The clips 1〇 and 2〇 can move relative to each other radially to the axis A. Separate to open the clamping device κ, and to close the clamping device 可 can be correspondingly pressed radially against each other. The clamping ratio and the movement of the clamping device and the opening of the clamping device 与The closing is carried out by means of a conventional drive, which is indicated by the double arrows 12 and 22 in Fig. 2a. The tightening device κ 201223659 is additionally movably axially movable. The required drive is The conventional design is indicated by a double arrow 11 in Fig. 1. The clearance inner diameter of the clamping device K in the closed state is indicated by d3 (Figs. 2b and 3a). The basic mode B has a guide. The hole 30, which extends throughout the entire process and coaxially to the axis A, has an inner diameter of the clearance (shown in the north). It can be moved perpendicular to the axis A, and after the forming, the end re of the strip located therein can be cut off, which is the residual part of the strip R. The lateral movement of the forming mold is driven by a conventional one. The device is carried out, which is indicated by a double arrow 40 symbol in Fig. 1. The stamping S can be moved coaxially to the axis eight, and the relevant section is adjusted according to the shape of the domain of the forming die. The front end portion of the material R can be axially received by the press ns to be deformed into the forming mold m. The movement of the punch s and the application of pressure to the end portion Re are conventional driving devices To do this, it is indicated by the double arrow 5Q symbol in the first BBI. The general process of the method according to the invention is as follows: Starting from the state of the strip R, the closed detent device K and the strip R' It is axially fixed. According to the first ring, the stamping HS will be pressed against the front end of the strip R. The end & will be formed into a molded part in the forming die due to the pressure applied thereto.冲压 the puncher s will be retracted, and the forming will move transversely to the axis eight, so that the formed end RE of the strip (ie, the formed part), which is located in the mold, will be Recorded from the rest of the strip R. After the end of the fine or the molded part is removed from the forming die, it returns to its original state. According to the situation of the first level will be reached, and in the &a~6e cap _ and stamping (5) are no longer shown 201223659. Then the clamping device K will open (Fig. 5b) and move back - limited length
度’對應於（未變形的）端部以沿該條料R之縱向離該基模B 的所需長度（第5c圖）。嗣該夾緊裝置K會再關閉，而使其夾 住該條料R(第5d圖）。然後，該夾緊裝置〖會再向前移動相 同的限定長度直到該基模B(第5e圖），而該條料尺會被以所 述的限定長度饋入該成形模Μ中。上述各步驟嗣會循環地 重複進行，直到該條料R不再具有足夠的剩餘長度為止。 一分開的饋料裝置當然能被用來取代以該夾緊裝置尺 饋進該條料R。在此情況時該夾緊裝置可被設成軸向固定 的。 依據本發明的方法至此仍相當於該種已知的方法，例 如在WO 2010/040238 A1專利中所述者，其曾在開頭被提 及，因此對專家不須要再說明。本發明的方法相較於習知 技術的差異係如下所述。 為確保所被製成之成型零件，即在該成形模河中被形 成之該條料R的端部re之尺寸穩定性，該基模B或其導孔3〇 係可被複製地充填，俾得在饋進該條料r之後，使一恆為固 定的材料量存在於該成形模財，乃是很重要的。由於實 際上該條料R之粗度的變異不能完全被排除，故依據傳統的 方法該基的可模製充填並雜能確保。以下是本發明的 應用實施。 依據本發明之—第—基本態樣，—條料r會被使用相 較於該基模Β的導孔3〇之截面形狀，其截面形狀具有平坦區 域及/或凹部等，而在本例巾係相形，其躲於第外圖 201223659 中—在第2、4b和4e圖中有三種典型的截面形狀被示出，其 中每者相較於一在第4a圖中被呈現為圓形的基本形狀 6〇白具有一平垣區域被以61或62或63表示。第4d圖示出 種截面形狀，其係依據—圓形的基本形狀而具有二凹 P 第如和奵圖示出另兩種截面形狀，相較於一同樣的 圓形基本形狀係具有三個或四個平坦區域65和66等。後兩 種截面形狀將會被更詳細論述於後。又具有平坦區域及凹 部等之組合的截面形狀亦可被選擇。 而且’該條料R的截面形狀在該等平坦區域61、62、63 ' 65、66和凹部64之間係有一比該基模B之導孔3〇的截面形狀 更大的直徑。在第2圖中，該條料尺的截面形狀之此較大的 直徑係以山標示。相對地，該基模]8的導孔3〇之稍微較小的 直徑係在第3b圖中被以d2標示。 依據本發明之另一基本態樣，該條料R相對於該夾緊裝 置K(在圓周方向）係被定向或引入於該夾緊裝置κ中，而使 5亥專平坦區域61、62、63、65、66及/或凹部64會來到位於 爽顎10和20之分開平面T的區域中，如第2a及2b圖中所示。 一具有數個，例如三或四個夾顎的夾緊裝置可被用來 取代一具有二個夾顎的夾緊裝置。同樣地條料則必須使用 具有一截面形狀者，其對應地具有數個平坦區域或凹部， 且該條料的定向係再被選成能使該等平坦區域或凹部會來 到位於該等夾顆之間的分開平面T之區域中。第4e和4f圖示 出此情況，其中第4e圖中的夾緊裝置有三個夾顎11〇、120 和130，而第4f圖中的夾緊裝置有四個夾顎21〇、220、230 11 201223659 和 240。 該條料R的平坦或凹陷截面形狀係僅適配於該夾緊裝 置K和基模B中。此意指如下的條料能被使用，其係從一開 始已經具有所需的截面形狀者，或是以一具有另一截面的 (原生)條料開始，而在引入該夾緊裝置K之前會被製成具有 該等平坦區域及/或凹部的截面形狀者，如第1圖中所示。 此方法變化例所具的優點係，該條料不必被定向，因為該 條料會以該截面變形裝置Q的對應排列對準來自動地正確 定向於該夾緊裝置K。另一個重要的優點係一（原生）條料能 夠以較大的截面容差來被使用，此對該材料之成本有一良 好的作用。 依據本發明之另一重要態樣，該夾緊裝置K於關閉狀態 時，在面向該基模B之一端的内截面形狀係對應於該基模B 之導孔30的截面形狀，或是可能稍小（較窄）。該條料R(其在 該等平坦區域或凹部之間的區域中係較粗厚）會於該夾緊 裝置K關閉時利用此徑向地夾壓（在該等平坦區域和凹部之 間的區域中），而使其套塞進入該基模B的導孔30中。當夾 壓穿過該夾緊裝置K時，過多的材料能逃入該等平坦區域或 凹部的區域中，並部份地充填它們。在第5a〜5e中能夠明 顯地看出，該等被以61標示的平坦區域如何被連續地充 填。該等平坦區域或凹部係被測成使它們不會被完全填 滿。該等平坦區域或其殘餘部份可延伸至進入該基模B中， 然後在該處被該成形方法之後流動的材料填滿。其細節會 進一步說明於後。 12 201223659 當成形時，特別是在凹壓時，可觀的軸向壓縮力會作 用於該條料R上。為在此等壓縮力的作用下使其不能軸向地 逃脫，故該軸向固定該條料R的夾緊裝置κ必須能夠安全地 夾抵並軸向地固定它。因此，較好是，該夾緊裝置κ或其夾 顎 10和20 ’ 或 il〇、120和 130，或210、220 ' 230和240等係 設有會增加摩擦的結構物。此等結構物可例如被設計成圓 周凸肋70,如特別可見於第5c圖中者。當該夾緊裝置K關閉 時，其失顎會一起壓合。因此，該等結構物或圓周凸肋7〇 會壓印於該條料R的表面中，並造成直徑地相對之結構物或 圓周凸肋8〇等’其亦特別可見於第允圖中。 該等夹顎之會增加摩擦的結構物7〇會確使該條料的材 料流比被沒有該等結構物的夾顎（以相同的夾顎軸向長度） 夾住時受到更多的阻抗。此會減少該等夾顎和夾緊裝置的 所需軸向長度，其相關於該夾緊裝置的其它功能是一種優 點(例如在軸向調整時有較低的慣性）。 壓印於該料條R中的結構物或圓周凸肋80’及在該等平 坦區域或凹部區域中的剩餘凹穴等，會在該基模Β中被該材 料流填滿，此係在該成形製程中對該條料施加壓力的結果。 在該成形製程的第一相態時，對抗該壓力的阻力係由 該夾緊裝置Κ的夾緊作用唯獨地造成。於此相態時，該基模 Β的導孔30會被該材料流完全地填滿。在此第一相態的另一 過程時(例如壓縮），該阻力係幾乎由該基模Β的前工具緣完 全接收。只有一小部份會被該失緊裴置Κ接收。於該第—成 形相態完成後，該條料在該等平坦區域或凹部的區域中會 13 201223659 變得較粗，但可能在該«裝置中的平坦區域或凹部尚未 被填滿成使料-之間的接合處將會被達到。 模B接收。即使若該條料的基本材 已經達到該夾緊裝置之夾顎在其 的接合處，依據最小阻力的原理 '在》亥成形製私的第二相態(例如向後擠壓或凹壓）時，所 而的軸向阻力係4乎完全被該失緊裝置κ接收，而非被該基 料於此第二相態開始之前 面向該基模B的一端之間 ，該基本材料將不會滲入 或流入該等接合處’而是進人該等會增加摩擦的結構物7〇 之凹穴中’或該條料的對應表面結構物⑽中，其係未被先 此意指該夾緊裝置 則的成形循環（夾緊 '壓縮等）所填滿者。 尺會被來自該基模B側的材料流部份地填滿，其中遍及該夾 緊裝置K的轴向長度之填滿程度，會隨著離該基模B的距離 逐增而減少。於該等會增加摩擦之結構物上的材料流所產 生的阻力，會導致該成形模Μ之可複製且一致性的充填。 '•亥夾緊裝置Κ的軸向長度係被選成，在該等循環重複的製程 期間，該等凹穴的連續充填不會達到該夾緊裝置κ面向離 開該基模Β的一端。此會防止該條料的截面超過該基模Β 之導孔的直徑。第6a〜6c圖示出該失緊裳置尺的凹穴如何被 由該基模B之側漸進地填滿。在第6 a圖中該填滿程度仍係相 對較低。在第6b圖中係較尚些’且在第6c圖中已達到盆最 終值。 該夾緊裝置K有各種不同的其它可能構形。故，例如有 —種失緊裝置能被使用’其於關閉狀態的餘隙内寬度在其 面向該基板B的一端係比其面向離開該基模3的一端處稍 201223659 微較大些。因此該夾緊裝置(在關閉狀態）可具有一實質上呈 錐形的内壁。且’該夾緊裝置κ之抓住該條件R的内壁可具 有二或更多個軸向偏差，較好是錐形的部段。 該夾緊裝置的夾顎可被設計為整體的，或各次分成二 或更多個塊段，它們係互相軸向地設置。一夾緊裝置反係被 示於第7圖中純為舉例，其夾顎1〇和2〇係次分成四個塊段 10a〜10d和20a〜20d等。該等塊段在其内表面上亦設有會 增加摩擦的結構物7 0。當然，每一炎顎亦可被提供少於或 多於四個的塊段。 該基模B的導孔30亦可被製成稍呈錐形，而使其阻力更 為增加。 在以上依據本發明的方法係被描述使用例如具有一截 面基礎的條料’其係實質上呈圓形_至該等平坦區域或凹 部。應請瞭解具有其它截面形狀的條料亦可被類似地使 用’而該夾緊裝置和基模的載面形狀必須被因應地調整。 因此，本發明並不限於具有一圓形截面基礎的條料。 【圖式簡單說明；3 第1圖示意地示出一成形裝置的必要構件； 第2圖為一條料沿第1圖之ΙΙ-Π線旋轉90。的截面圖； 第2a、b圖為一夾緊裝置於一開啟和關閉狀態與條料沿 第1圖之II-II線旋轉90°的兩個截面圖； 第3a圖為該失緊裝置在關閉狀態與條料沿第i圖之 Illa-IIIa線旋轉90°的截面圖； 第3b圖為一基模與條料沿第1圖之Illb-IIIb線旋轉9〇。 15 201223659 的截面圖； 第4a〜f圖為該條料之各種不同的截面形狀； 第5a〜e圖為一基模，一夾緊裝置和條料在本發明的方 法中之五個不同的相態； 第6a〜c圖為三個示出該條料之流動情況的略圖；及 第7圖為一穿過次分成塊段之夾緊裝置的軸向截面圖。 【主要元件符號說明】 10...夾顎 B...基模 11...驅動裝置 山…較大直徑 12，22，40，50...驅動裝置 d2，d3...餘隙内徑 20, 110,120,130,210,220 ，K...夾緊裝置 230，240 ...夾顎 M...成形模 30...導孔 Q...截面變形裝置 60...基本形狀 R...條料 61，62，63 ’ 65，66··.平坦區域RE··.條料前端部 64...凹部 S...冲壓器 70，80...凸肋 A...轴線 T...分開平面 16The degree ' corresponds to the (undeformed) end portion to the desired length of the base mold B in the longitudinal direction of the strip R (Fig. 5c).嗣The clamping device K will be closed again to clamp the strip R (Fig. 5d). Then, the clamping device will then move forward by the same defined length up to the base mold B (Fig. 5e), and the strip will be fed into the forming die at the defined length. The above steps 嗣 are repeated cyclically until the strip R no longer has sufficient remaining length. A separate feed device can of course be used instead of feeding the strip R with the clamp gauge. In this case the clamping device can be arranged to be axially fixed. The method according to the invention thus far corresponds to this known method, as described in the WO 2010/040238 A1 patent, which was mentioned at the outset and therefore need not be explained again by the expert. The differences between the methods of the present invention over the prior art are as follows. In order to ensure the dimensional stability of the formed part, that is, the end re of the strip R formed in the forming mold river, the base mold B or its guide hole 3 can be reproducibly filled, It is important to have a constant amount of material present in the forming mold after feeding the strip r. Since the variation of the thickness of the strip R can not be completely eliminated, the moldable filling and the complication of the base are ensured according to the conventional method. The following is an application implementation of the present invention. According to the first embodiment of the present invention, the strip r is used in comparison with the cross-sectional shape of the via hole 3 of the base mold, and the cross-sectional shape thereof has a flat region and/or a concave portion, etc., in this example. The towel is shaped like a figure, which hides in the outer image 201223659 - three typical cross-sectional shapes are shown in Figures 2, 4b and 4e, each of which is rendered circular in Figure 4a. The basic shape 6 具有 white has a flat area indicated by 61 or 62 or 63. Fig. 4d shows a cross-sectional shape which has a dimple P according to the basic shape of the circle, and the other two cross-sectional shapes, as shown in the figure, and three different basic shape systems. Or four flat areas 65 and 66, etc. The latter two cross-sectional shapes will be discussed in more detail later. Further, a cross-sectional shape having a combination of a flat region, a concave portion, and the like can be selected. Further, the cross-sectional shape of the strip R is such that a diameter larger than the cross-sectional shape of the guide hole 3 of the base mold B is formed between the flat portions 61, 62, 63' 65, 66 and the recess 64. In Fig. 2, the larger diameter of the cross-sectional shape of the strip is indicated by the mountain. In contrast, the slightly smaller diameter of the guide hole 3 of the base mold 8 is indicated by d2 in Fig. 3b. According to another basic aspect of the invention, the strip R is oriented (in the circumferential direction) relative to the clamping device K (in the circumferential direction) or introduced into the clamping device κ, so that the 5 flat areas 61, 62, 63, 65, 66 and/or recess 64 will come to the area of the separate plane T of the cool 10 and 20, as shown in Figures 2a and 2b. A clamping device having a plurality of, for example three or four, jaws can be used in place of a clamping device having two jaws. Similarly, the strip must use a shape having a cross-section, which correspondingly has a plurality of flat regions or recesses, and the orientation of the strip is selected such that the flat regions or recesses will come to the clip. The area between the planes is separated by a plane T. This is illustrated by Figures 4e and 4f, in which the clamping device of Figure 4e has three jaws 11, 120 and 130, while the clamping device of Figure 4f has four jaws 21, 220, 230. 11 201223659 and 240. The flat or concave cross-sectional shape of the strip R is only adapted to the clamping device K and the base mold B. This means that the following strips can be used, starting from the beginning with the desired cross-sectional shape, or starting with a (native) strip having another cross-section, before introducing the clamping device K It will be made to have the cross-sectional shape of the flat regions and/or recesses as shown in Fig. 1. The advantage of this method variant is that the strip does not have to be oriented since the strip will automatically be correctly oriented to the gripping device K with the corresponding alignment of the section deforming means Q. Another important advantage is that a (native) strip can be used with a large cross-sectional tolerance, which has a good effect on the cost of the material. According to another important aspect of the present invention, when the clamping device K is in the closed state, the inner cross-sectional shape facing one end of the base mold B corresponds to the cross-sectional shape of the guide hole 30 of the base mold B, or Slightly smaller (narrower). The strip R (which is thicker in the region between the flat regions or recesses) is radially pinched (between the flat regions and the recesses) when the clamping device K is closed In the region, it is plugged into the guide hole 30 of the base mold B. When clamped through the clamping device K, excess material can escape into the areas of the flat regions or recesses and partially fill them. It can be clearly seen in the 5a to 5e how the flat areas indicated by 61 are continuously filled. The flat areas or recesses are measured such that they are not completely filled. The flat regions or their residual portions may extend into the base mold B where they are then filled with material flowing after the forming method. The details will be further explained later. 12 201223659 Apparent axial compressive forces are applied to the strip R when forming, especially in the case of a concave pressure. In order to prevent it from escaping axially under the action of these compressive forces, the clamping device κ which axially fixes the strip R must be able to securely clamp and axially fix it. Therefore, it is preferable that the clamping device κ or its clamps 10 and 20' or il〇, 120 and 130, or 210, 220' 230 and 240, etc. are provided with a structure which increases friction. Such structures may, for example, be designed as circumferential ribs 70, as particularly seen in Figure 5c. When the clamping device K is closed, its failure will be pressed together. Accordingly, the structures or circumferential ribs 7 压 are imprinted in the surface of the strip R and cause diametrically opposed structures or circumferential ribs 8 , etc., which are also particularly visible in the first diagram. Such a sandwiched structure that increases friction will ensure that the material flow of the strip is more resistive than being clamped by the clamp without the structure (with the same axial length of the clamp) . This reduces the required axial length of the jaws and clamping device, which is an advantage associated with other functions of the clamping device (e.g., lower inertia when axially adjusted). The structure or circumferential rib 80' embossed in the strip R and the remaining pockets in the flat or recessed regions are filled by the material flow in the base mold, which is The result of applying pressure to the strip during the forming process. In the first phase of the forming process, the resistance to the pressure is solely caused by the clamping action of the clamping device. In this phase, the vias 30 of the base mold are completely filled by the material flow. In the other process of this first phase (e.g., compression), the resistance is almost completely received by the front tool edge of the base die. Only a small portion will be received by the unsuitable device. After the first forming phase is completed, the strip becomes thicker in the area of the flat regions or recesses 13 201223659, but the flat areas or recesses in the device may not be filled yet. - The joint between them will be reached. Modulo B receives. Even if the base material of the strip has reached the junction of the clamping device at its junction, according to the principle of minimum resistance, when the second phase state (for example, backward pressing or concave pressing) is formed , the axial resistance is completely received by the detent device κ, rather than being between the end of the base mold facing the base phase B before the second phase begins, the basic material will not penetrate Or into the joints 'but into the recesses of the structure 7 会 which will increase the friction' or the corresponding surface structure (10) of the strip, which is not previously referred to as the clamping device Then the forming cycle (clamping 'compression, etc.) is filled. The ruler is partially filled by the flow of material from the side of the base mold B, wherein the degree of filling of the axial length of the clamping device K decreases as the distance from the base mold B increases. The resistance created by the flow of material on such friction-increasing structures results in a replicable and consistent filling of the forming die. The axial length of the '•Hail clamp Κ is selected such that during such repeated cycles the continuous filling of the pockets does not reach the end of the clamping device κ facing away from the base mold. This prevents the section of the strip from exceeding the diameter of the pilot hole of the base mold. Figures 6a to 6c illustrate how the recess of the misaligned skirt is progressively filled from the side of the base mold B. The degree of filling is still relatively low in Figure 6a. In Figure 6b, it is more ‘and the basin final value has been reached in Figure 6c. The clamping device K has a variety of other possible configurations. Therefore, for example, a type of detent device can be used. The width of the gap in the closed state is slightly larger at the end facing the substrate B than at the end facing away from the base mold 3 by 201223659. Thus the clamping device (in the closed state) can have a substantially conical inner wall. And the inner wall of the clamping device κ which grasps the condition R may have two or more axial deviations, preferably tapered sections. The jaws of the clamping device can be designed to be unitary or divided into two or more segments, which are arranged axially to each other. A clamping device is shown in Fig. 7 as an example, and the clamping jaws 1 and 2 are divided into four segments 10a to 10d and 20a to 20d, and the like. The blocks are also provided on their inner surfaces with structures 70 which increase friction. Of course, each sputum can also be provided with fewer or more than four segments. The guide hole 30 of the base mold B can also be made slightly tapered to increase its resistance. The method according to the invention above has been described using, for example, a strip having a cross-sectional basis which is substantially circular-to the flat regions or recesses. It should be understood that strips having other cross-sectional shapes can be similarly used' and the shape of the gripping surface of the clamping device and the base mold must be adjusted accordingly. Thus, the invention is not limited to strips having a circular cross-sectional basis. BRIEF DESCRIPTION OF THE DRAWINGS [Fig. 1 schematically shows the necessary components of a forming apparatus; and Fig. 2 is a strip of material rotated 90 along the ΙΙ-Π line of Fig. 1. 2a, b are two cross-sectional views of a clamping device in an open and closed state and a strip rotated 90° along the line II-II of Fig. 1; Fig. 3a shows the detent device in The closed state and the strip are rotated by 90° along the Illa-IIIa line of the i-th diagram; the 3b is a basic mold and the strip is rotated 9 turns along the Illb-IIIb line of Fig. 1. 15 201223659; Sections 4a to f are various cross-sectional shapes of the strip; Figures 5a to e are a basic mold, a clamping device and a strip are five different in the method of the present invention. Phases; Figures 6a-c are three schematic views showing the flow of the strip; and Figure 7 is an axial cross-sectional view of the clamping device passing through the sub-block. [Main component symbol description] 10...clip B...base mode 11...drive unit mountain...large diameter 12, 22, 40, 50... drive unit d2, d3... clearance Diameter 20, 110, 120, 130, 210, 220, K... Clamping device 230, 240 ... clamping M... forming die 30... pilot hole Q... section deformation device 60... basic shape R... Material 61, 62, 63 ' 65, 66 · · flat area RE · · strip front end portion 64 ... recess S ... stamp 70, 80 ... rib A ... axis T. .. separate plane 16