5 10 15 20 M320449 八、新型說明： 【新型所屬之技術領域】 本新型是有關於一種搓牙板設計，特別是一種尖尾螺 絲牙板組。 ^ 【先前技術】 參閱圖1，目前一般螺絲的製造成型，主要取用冷鍛 成形出具頭部之桿體，而後利用搓牙機（圖中未示出）上妒 設兩相對應牙板所組成之螺絲牙板組，俾便藉由該兩相對 應牙板相互輾壓，以將桿體外表面成形加工出螺紋。 查，習知螺絲牙板組1構造，請參閱圖丨、2可知，其 係由二對應固定於螺絲成型機（圖中未示出）之牙板I】 所組成，前述該每一牙板u包括有一本體⑴，複數形成 於該本體111上之成型槽112，分別形成於該本體⑴二 側邊之入口端m與出口端114,以及一凸伸於該本體ηι 下緣之成型部115 ;其中，該成型部115並具有_與成型 槽112銜接之斜切面116，一近該入口端ιΐ3之導引面 117’ -與該導引面117銜接並近該出口端⑴之剪切面 118,以及-傾斜開設於該成型部115上之排屑槽⑴再 配合參閱圖3、4,是以搓牙時，該螺絲2經由該人口端113 進入該螺絲牙板叙i，以便該二牙板^相互概壓該螺絲2 之桿體2卜俾便該成型槽112於該螺絲2上成型出螺牙 22’而該斜切面116則使圓形之該桿體21逐漸擠壓出一尖 尾部23，最後該螺絲2便由該出口端1H出料，而完成: 螺絲2之製造。 v 4 M320449 惟，該成型部115在針對該桿體2i進行擠壓成形時， θ在該柃體21上逐漸擠壓成形出一連結於該桿體21上之 : 餘料，直至該剪切面118時，再予以將該餘料切除，不過 在切除過程中，受限於該排屑槽119與該導引面117及剪 5 切面118尚低落差過大，致使擠壓成形之餘料落於該排屑 槽119内，且與該桿體21呈偏心狀態，一但至該剪切面 118欲進行餘料切除時，該剪切面118並無發無法有效的 _ 切除餘料，甚至切除時易對尖尾部23產生拉扯，致使該尖 尾。卩23之成型產生缺陷而形成不良品，影響該螺絲2製造 1〇 品質。 【新型内容】 因此，本新型之目的，是在提供一尖尾螺絲牙板組， 成型時可確保尖尾螺絲成形之完整性，以提昇製造品 質。 於疋本新型尖尾螺絲牙板組，該每一牙板主要包含 本體、複數成型槽、一入口端、一出口端及一成型部； 其中，該成型部具有一與成型槽銜接之斜切面，一近該入 口知之‘引面，一與該導引面銜接並近該出口端之剪切 面以及傾斜開設於該成型部上之排屑槽，而前述該排 2〇 屑槽該排屑槽上凸設有-支撐塊，且該支撐塊上開設有複 數凸齒，同時該支撐塊高度低於該剪切面高度，俾便擠壓 成形過程所產生之餘料得以受到該支撐塊支撐，直至該剪 切面位置時，亦可被銳利的切除，以確保該尖尾螺絲之尖 尾部完整性，進而提昇該尖尾螺絲製造品質 5 M320449 【實施方式】 有關本新型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較佳實施例的詳細說明中，將可清楚 的明白。 參閱圖5、6，本新型尖尾螺絲牙板組4之一較佳實施 例，該尖尾螺絲牙板組4係由二對應固定於螺絲成型機（圖 中未示出）之牙板41所組成，前述該每一牙板41包括有 一本體411，複數形成於該本體411上之成型槽412，分 別形成於該本體411二側邊之入口端413與出口端414， 以及一凸伸於該本體411下緣之成型部415 ;其中，該成 型部415具有一與該成型槽412銜接之斜切面416，一近 該入口端413之導引面417, 一與該導引面417銜接並近 該出口 414之剪切面418，以及一傾斜開設於該成型部 415上之排屑槽419 ;而前述該導引面417上更開設有複 數導引齒410。 仍續前述’該排屑槽419上凸設有一支撐塊42，且該 支樓塊42並緊鄰該導引面417、剪切面418，同時該支撐 塊42上開設有複數凸齒421，同時該支撐塊42高度低於 該洳切面418高度，另該支撐塊42長度是從該入口端413 延伸至該出口端414處。 參閱圖6，本實施例之螺絲牙板組4係設置於一搓牙 機（圖中未示出）上，利用該其一牙板41呈固定狀態，而 另一相對之該牙板41則被帶動方式安裝，之後再藉由該 二牙板41間針對該尖尾螺絲5進行搓牙加工，·配合參閱 6 M320449 圖此_尖尾螺絲5經由該導引面4i7上之導引齒 410引導進入該斜切面416，以藉該成型槽412而使該尖 尾螺絲5上成型出螺牙54’同時該尖尾螺絲5並隨著該斜 切面416逐漸擠壓而忐彤φ ,丨、ρ μ rn 5 10 15 2〇 阳成形出大尾部53及產生餘料55，而 前述該餘料55則可受至丨|兮古# # 又到該支撐塊42支撐，亦即該支撐塊 42可降低該剪切面eg盥妍届播_ 4丄8興排屑槽419之高低落差，並配合 該凸齒421的作用，妗句 故該餘枓55不會與該桿體52產生偏 、兄象，以便該剪切面418可順利地將該餘料Η切除， 確保該尖尾部53不會受到該餘料55拉扯而斷裂損壞，以 持該大尾邛53之完整性，以提昇該尖尾螺絲5製造品 質。 f 1¾别述本新型藉由該支擇塊之增^，使該尖尾螺 括之大尾^成型時，其尖尾部之結構得以完整成型，不受 料拉扯而斷裂’以提昇該尖尾螺絲之製造品質，故確 只月b達到本新型之目的。 ♦ It 乂上所述者，僅為說明本新型之較佳實施例而已， 1不!以此限定本新型實施之_，即大凡依本新型申請 利，圍及新型說明書内容所作之簡單的等效變化與修 ’皆應仍屬本新型專利涵蓋之範圍内。 M320449 【圖式簡單說明】 圖1疋_知螺絲牙板組之牙板組合圖； 圖2疋驾知螺絲牙板組之牙板示意圖； 圖3疋1知螺絲牙板組之局部使用狀態圖； 圖4是自知螺絲牙板組之搓牙完成螺絲示意圖； 圖5疋本新型-較佳實施例之牙板示意圖； 疋本新型一較佳實施例之牙板組合圖； 本新i較佳貫施例之局部使用狀態圖；及 圖8疋本新型—較佳實施例之搓牙完成螺絲示意圖 15 【圓式之主要元件代表符號說明】 4 42 411 尖尾螺絲牙板組 支撐塊 本體 413 入口端 415 成型部 417 導引面 419 排屑槽 5 尖尾螺絲 51 螺頭 53 尖尾部 55 餘料 41 牙板 410 導引齒 412 成型槽 414 出口端 416 斜切面 418 剪切面 421 凸齒 6 搓牙通道 52 桿體 54 螺牙 205 10 15 20 M320449 VIII. New description: [New technical field] The new type is related to a design of a squeegee, especially a group of pointed snails. ^ [Prior Art] Referring to Figure 1, the current general manufacturing of screws, mainly using cold forging to produce the head of the head, and then using the boring machine (not shown) to set up two corresponding dental plates The set of screw plates is formed by pressing the two corresponding teeth to form a thread on the outer surface of the rod. Check, the structure of the conventional screw plate set 1, as shown in Fig. 2, which is composed of two corresponding tooth plates I fixed to a screw forming machine (not shown), each of the aforementioned dental plates The U includes a body (1), and a plurality of molding grooves 112 formed on the body 111, respectively formed at the inlet end m and the outlet end 114 of the two sides of the body (1), and a molding portion 115 protruding from the lower edge of the body ηι Wherein, the molding portion 115 has a chamfered surface 116 that is coupled to the molding groove 112, and a guiding surface 117' near the inlet end ι 3 - is engaged with the guiding surface 117 and is close to the shearing surface of the outlet end (1) 118, and - the chip flute (1) which is inclined to be opened on the molding portion 115 is further referred to FIG. 3 and FIG. 4, and in the case of cavities, the screw 2 enters the screw plate through the population end 113, so that the two The shank is pressed against the rod 2 of the screw 2, and the forming groove 112 forms a thread 22' on the screw 2, and the chamfered surface 116 gradually squeezes the circular rod 21 into a The tip end portion 23, finally the screw 2 is discharged from the outlet end 1H, and is completed: the manufacture of the screw 2. v 4 M320449 However, when the molding portion 115 is extrusion-molded for the rod body 2i, θ is gradually extruded on the body 21 to form a residual material attached to the rod body 21 until the cutting When the surface is 118, the residual material is removed. However, during the cutting process, it is limited that the chip flute 119 and the guiding surface 117 and the shearing surface 118 are too low, so that the remaining material is formed by extrusion. In the chip flute 119, and the rod body 21 is eccentric, once the shearing surface 118 is to be cut out, the shearing surface 118 is not effective and can not be effectively removed. When the cut is made, it is easy to pull the pointed tail portion 23, causing the pointed tail. The formation of 卩23 produces defects and forms a defective product, which affects the quality of the screw 2. [New content] Therefore, the purpose of the present invention is to provide a pointed screw plate set which ensures the integrity of the pointed screw forming during molding to improve the manufacturing quality. In the novel pointed screw plate set, each of the dental plates mainly comprises a body, a plurality of forming grooves, an inlet end, an outlet end and a forming portion; wherein the forming portion has a chamfered surface which is connected with the forming groove Near the entrance, the 'leading surface, a shearing surface that is connected to the guiding surface and near the outlet end, and a chip flute that is inclined to open on the forming portion, and the row of the chip 2 A support block is protruded from the groove, and the support block is provided with a plurality of convex teeth, and the height of the support block is lower than the height of the shear surface, and the remaining material generated by the squeezing process is supported by the support block. Until the position of the shearing surface, it can be sharply cut to ensure the integrity of the tip end of the pointed screw, thereby improving the manufacturing quality of the pointed screw. 5 M320449 [Embodiment] The foregoing and other technologies related to the present invention The details, features, and advantages of the invention will be apparent from the following detailed description of the preferred embodiments. Referring to Figures 5 and 6, a preferred embodiment of the present type of pointed screw plate set 4 is a dental plate 41 fixed to a screw forming machine (not shown) by two corresponding screws. Each of the dental plates 41 includes a body 411, and a plurality of molding grooves 412 formed on the body 411, respectively formed at the inlet end 413 and the outlet end 414 of the two sides of the body 411, and a protrusion a molding portion 415 of the lower edge of the body 411; wherein the molding portion 415 has a chamfered surface 416 that engages with the molding groove 412, a guiding surface 417 near the inlet end 413, and a guiding surface 417 The cutting surface 418 of the outlet 414 is adjacent to the cutting groove 419 which is inclined on the forming portion 415; and the guiding surface 417 is further provided with a plurality of guiding teeth 410. Continuing with the foregoing, a support block 42 is protruded from the chip flute 419, and the branch block 42 is adjacent to the guiding surface 417 and the shearing surface 418, and the supporting block 42 is provided with a plurality of convex teeth 421. The support block 42 has a height that is lower than the height of the chopped surface 418, and the length of the support block 42 extends from the inlet end 413 to the outlet end 414. Referring to FIG. 6, the screw plate set 4 of the present embodiment is disposed on a boring machine (not shown), with one of the dental plates 41 being in a fixed state and the other opposite the dental plate 41 being After being driven, the dentition is performed on the pointed screw 5 between the two dental plates 41. Referring to FIG. 6 M320449, the spigot screw 5 is guided by the guiding tooth 410 on the guiding surface 4i7. Guided into the chamfered surface 416, the threaded screw 5 is formed on the spiked screw 5 by the forming groove 412, and the pointed screw 5 is gradually pressed with the chamfered surface 416, 忐彤φ, 丨, ρ μ rn 5 10 15 2, the large tail portion 53 is formed and the residual material 55 is generated, and the remaining material 55 can be supported by the support block 42 again, that is, the support block 42 The height difference of the shearing surface can be reduced, and the function of the convex tooth 421 is matched, so that the ember 55 does not deviate from the rod 52. a sibling, so that the shearing surface 418 can smoothly cut the remaining material to ensure that the pointed tail portion 53 is not broken by the residual material 55 and is broken and damaged. End integrity mound 53, the tip end of screw to improve the quality of manufacture 5. f 13⁄4 别 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉 藉The manufacturing quality of the screw, so it is only the month b to achieve the purpose of this new type. ♦ It 乂 所述 , , , , , , , , , , , , 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ! ! ! ! Both effect changes and repairs should remain within the scope of this new patent. M320449 [Simple diagram of the diagram] Figure 1 疋 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Figure 4 is a schematic view of the squeezing screw of the self-satisfied screw plate set; Figure 5 is a schematic view of the dental slab of the present invention - a preferred embodiment; A partial use state diagram of a preferred embodiment; and FIG. 8 is a schematic view of a tooth-finishing screw of the novel-preferred embodiment. [Description of the main components of the circular type] 4 42 411 After screw plate support block body 413 Inlet end 415 Forming part 417 Guide surface 419 Chip flute 5 Tip screw 51 Screw head 53 Tip tail 55 Residue 41 Dental plate 410 Guide tooth 412 Forming groove 414 Outlet end 416 Beveled surface 418 Shear plane 421 Convex tooth 6 gingival passage 52 rod body 54 threaded teeth 20