200800432 九、發明說明： 【發明所屬之技術領域】 ’特別是指一種利 置。 本發明是有關於一種擠製成形裝置 用液體進行擠壓製程的靜液壓擠製成形裝 【先前技術】 夕' 如圖1所示，習知的靜液壓擠製成形裝，是藉由移 動-沖頭2而使一線材10承受均向之高壓液體(業界常之稱 為壓媒’ Media)壓力，以達到減縮該線材1〇直徑 之成形製程。 該靜液壓擠製成形裝置i包含_缸體單元U，及一成 形單元12。該缸體單元u具有一可界定出一内孔110的厚 壁2環m，及分設於該厚壁圓環lu兩相反端面上的 一前擋板112與一後擋板113。該前擋板112形成有一與該 内孔110相連通的前軸孔114,及一自外周面向内延伸並與 該前軸孔114相連通的注油通道115。該後擋板113則形成 有一與該内孔11 〇相連通的後軸孔116。 該成形單元12具有一容置於該厚壁圓環lu之内孔 110中且罪貼於邊後擔板113的眼模121，及一套設於該眼 模121上的密封環122。 進行靜液壓擠製作業時，是將該線材1 〇穿置於該眼模 121中，再自該注油通道115輸入液體，並使之充滿該内孔 110 ’令該沖頭2自該前擋板112之前軸孔114前進，以擠 壓缸内液體而使之壓昇。當該液體的壓力達到預定值時， 該線材10就會被擠出該眼模121，而達到縮徑的效果。 5 200800432 體積較該線材 壓媒，造成材 然而’由於該厚壁圓環11丨之内孔110的 10的體積大出許多，因此，需要注入較多的 料耗費的成本增加。200800432 IX. Description of the invention: [Technical field to which the invention pertains] ‘Specially refers to a kind of interest. The present invention relates to a hydrostatic extrusion molding process for a extrusion process using a liquid extrusion process [Prior Art] As shown in Fig. 1, a conventional hydrostatic extrusion molding is by moving - The punch 2 causes the wire 10 to withstand the pressure of the uniform high pressure liquid (commonly referred to as the "media" in the industry) to achieve a forming process for reducing the diameter of the wire. The hydrostatic extrusion forming device i comprises a cylinder unit U and a forming unit 12. The cylinder unit u has a thick wall 2 ring m defining an inner hole 110, and a front baffle 112 and a tailgate 113 which are disposed on opposite end faces of the thick wall ring lu. The front baffle 112 is formed with a front shaft hole 114 communicating with the inner hole 110, and an oil filling passage 115 extending inwardly from the outer circumferential surface and communicating with the front shaft hole 114. The tailgate 113 is formed with a rear axle hole 116 that communicates with the inner bore 11 。. The forming unit 12 has an eye mold 121 accommodated in the inner hole 110 of the thick-walled ring lu and affixed to the rear side plate 113, and a set of sealing rings 122 provided on the eye mold 121. When the hydrostatic extrusion operation is performed, the wire 1 is inserted into the eye mold 121, and the liquid is input from the oil filling passage 115 and filled with the inner hole 110' to make the punch 2 from the front end. The shaft hole 114 is advanced before the plate 112 to press the liquid in the cylinder to press it up. When the pressure of the liquid reaches a predetermined value, the wire 10 is extruded into the eye mold 121 to achieve the effect of reducing the diameter. 5 200800432 The volume is higher than that of the wire. However, since the volume of the inner hole 110 of the thick-walled ring 11 is much larger, the cost of injecting more material is increased.
再者，由於壓媒的壓縮量會隨壓力的增加而增加，因 此，當使用的壓媒愈多時，則其壓縮的份量亦會隨之增加 ，也就是說，壓媒壓縮的量愈大時，其所積存的能量= 愈大，相對地，就愈難控制該線材10擠出的速度。而且， -旦擠出之後’很難以立刻補充所需的壓力，而會造成擠 製中斷的情況產生，不但難以控制其擠製速度，而且，因 ^，該沖帛2的直徑較大，每移動單元距離所造成的壓縮 程度較大，而導致製程的控制精度會較差。 【發明内容】 因此，本發明之目的，即在提供一種靜液壓擠製成炉 裝置，可減少液體（壓媒）的輸入量，降低成本，並讓擠製速 度較容易控制，而且還提高製程的控制精度。Furthermore, since the amount of compression of the pressure medium increases with the increase of the pressure, the more the amount of the pressure medium used, the more the amount of compression will increase, that is, the larger the amount of compression of the pressure medium. At that time, the greater the energy accumulated, the more difficult it is to control the speed at which the wire 10 is extruded. Moreover, after the extrusion, it is difficult to immediately replenish the required pressure, which may cause the interruption of the extrusion, and it is difficult to control the extrusion speed. Moreover, the diameter of the punch 2 is large, each The degree of compression caused by the distance of the moving unit is large, and the control precision of the process is poor. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a hydrostatic extrusion furnace apparatus which can reduce the input amount of liquid (pressure medium), reduce the cost, and make the extrusion speed easier to control, and also improve the process. Control accuracy.
於是，本發明之靜液壓擠製成形裝置，是藉由移動一 沖頭而使-線材受液體壓力進行縮徑，該靜液壓擠製成形 裝置包含-缸體單元，及—成形單元，該缸體U具有二 可界定出-用以容置液體之内孔的厚壁圓環、一容置於該 内孔中的套筒，及至少一套設於該套筒上的密封環，該套 筒具有-鄰近該厚壁圓環一端之密封段，及一自該密封段 向前延伸且外徑小於該密封段的連通段，該成形單元是^ 置於該厚壁圓環之内孔中並與該套筒相對，並具有一可供 該線材通過的眼模，及—套設於該目H的密封環。U 6 200800432 本發明之功效在於利用容置於該内孔的套筒，以佔用 該内孔的部分體積’藉此減少液體的輸入量，在進行靜液 壓擠製製程時，因液體體積較少而使液體的壓力可以迅速 上昇，同時，也讓擠製速度較容易控制，並能有效地提高 製程的控制精度。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在Thus, the hydrostatic extrusion molding apparatus of the present invention reduces the diameter of the wire by the liquid pressure by moving a punch, the hydrostatic extrusion forming device comprising a cylinder unit, and a forming unit, the cylinder The body U has two thick-walled rings defining a bore for receiving the liquid, a sleeve received in the bore, and at least one set of seal rings disposed on the sleeve. The cylinder has a sealing section adjacent to one end of the thick-walled ring, and a connecting section extending forward from the sealing section and having an outer diameter smaller than the sealing section, the forming unit being disposed in the inner hole of the thick-walled ring And opposite the sleeve, and has an eye mold for the passage of the wire, and a sealing ring sleeved on the H. U 6 200800432 The effect of the invention is to utilize a sleeve housed in the inner bore to occupy a partial volume of the inner bore ' thereby reducing the amount of liquid input, which is less liquid due to the hydrostatic extrusion process The pressure of the liquid can be rapidly increased, and at the same time, the extrusion speed is easier to control, and the control precision of the process can be effectively improved. [Embodiment] The foregoing and other technical contents, features and effects of the present invention are
以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 如圖2、3、4所示，本發明靜液壓擠製成形裝置之較 佳貫施例，是藉由移動一臥式擠壓機（圖未示）之水平作動的 沖頭2，以擠壓該靜液壓擠製成形裝置内的液體，使一線材 3受均向的液體壓力而進行減縮外徑之成形製程。該靜液壓 擠製成形裝置包含-缸體單元4、—成形單元5，及一延伸 單元6。 該虹體單元4具有—可界定出—用以容置液體（即壓媒） 之内孔410的厚壁圓環4卜一容置於該内孔中的套筒 C、二相疊套設於該套筒42上的密封環43，及分別固設於 謂壁圓& 41兩相反端的—前撞板44與-後擋板45。該 前撞板44形成有-連通該内孔彻的前軸孔441，及一由 内延伸並與該前軸441相連通用以輸入壓媒的 :442，該後擋板45形成有-連通該内孔410的後 軸孔451。 在該較佳實施例中 是僅以一層厚壁圓環41來表示， 7 200800432 但在實際實施時’可以有多層相互疊合屢配的厚壁圓環4i 所構成，以承受高壓，不應以此為限制。 =套筒42具有一鄰近該厚壁圓環41 —端之密封段421 ’及-自該密封段421向前延伸且外徑小於該密封段421 =連通段422。該連通段422上形成有多數個等角度間隔排 列的牙孔423。所述的密封環43是環套於該連通段似上 並抵靠於該密封段421。 在該較佳實施例中，該密封段421的外徑是略小於該 厚壁圓環之内孔的孔徑，可使前述的密封環43發 揮作用以達到較佳的密封效果，並延長密封環43的使用期 限。每-個穿孔423可讓壓媒流通於該套筒42的内部盘外 部’使該套筒42内外的壓力可以達到平衡，避免影響該厚 壁因環4卜前述之密封環43的使用個數是視設計需求可加 以調整，當然也可以使用單一個或更多個。 口 該成形單元5是容置於該厚壁圓環41之内孔4ι〇中並 與該套筒42相f卜該成形單元5具有一可供該線材3通過 的眼模5卜及-套設於該眼模51上的密封環52。咳 依序可界定出一入口錐槽511、一平行通口 512，^二出 口錐槽513，該線材3是自該入口錐槽511進入而可喊 縮其外徑，並以該平行通口 512提高成形精度。 彳 該延伸單元6是套接在該沖頭2上，並具有_ 於該沖頭2端部的固定環套6卜—嵌卡於該固定環套^ 並可穿入該缸體單元4之套筒42中的沖頭延伸件&及^ 疊靠套設於該沖頭延伸件62之前端部上的密封環…- 8 200800432 該沖頭延料62的特是略切«料44之前轴 孔⑷的孔徑’可使前述的密封環63發揮作用以達到較佳 的密封效果，並延長使用期限。 而5亥套筒42的内徑亦應與 該前軸孔441的孔徑儘量相同， 避充因洛差而導致該沖頭 延伸件62在通過此介面時，容县 丁 令易產生洩漏或是刮壞所述的 密封環63，影響擠製製程的進行。 進行靜液壓擠製成形製程時，是先將該線材3的前端 部（削尖）嵌插入該眼模51之入口錐槽511 +，再將該眼模 51連同線材3、套筒42依序置入該内孔41〇中。接著，令 口亥冲頭2刖移，使該沖頭延伸件62前端穿入該前擋板料 之前軸孔441中，但未超過該注油通道442。而後，將壓媒 從該注油通道442倒入至填滿該内孔41〇為止。最後，令 该沖頭2向前移動，即可藉由壓縮壓媒而使壓力提昇，當 壓力達到適當值時，該線材3就會被擠出該眼模51，完成 該線材3的縮徑成形作業。 應說明的是，前面所揭露的例子是在不變更原有的沖 頭2的情況下而加以改良，因此，需要另外加設該延伸單 元6。當然，若該沖頭2的外徑已滿足該套筒42時，意即 該沖頭2的外徑是略小於該前擋板44之前軸孔441的孔徑 ’因此就可以不透過該延伸單元6而直接以該沖頭2擠入 該缸體單元4中，不應以此侷限本發明之可應用範疇。 歸納上述，本發明之靜液壓擠製成形裝置，是利用該 缸體單元4之套筒42的設置，以佔據該厚壁圓環41之内 孔410的部分空間，而能減少壓媒的使用量，以節省壓媒 9 200800432 的購置成本。更重要的是，因為壓媒使用量的減少，使得 其壓縮量亦隨之降低，該沖頭2開始動作時，可使壓媒快 速地壓昇，同時，壓媒不會積存過多的能量，避免該線材3 在開始擠出的瞬間產生爆衝的現象，而且，也因為壓媒使 用量少’其壓力的補充速度也會相當快，藉此使該線材3 的擠製速度較容易被控制。另外，也由於該套筒42的設置 關係，產生該内孔410的直徑縮小的效果，讓該延伸單元6The detailed description of a preferred embodiment of the present invention will be apparent from the following description. As shown in Figures 2, 3 and 4, a preferred embodiment of the hydrostatic extrusion forming apparatus of the present invention is to squeeze the horizontally actuated punch 2 by moving a horizontal extruder (not shown). The liquid in the hydrostatic extrusion molding device is pressed, and the wire 3 is subjected to a forming process of reducing the outer diameter by the uniform liquid pressure. The hydrostatic extrusion device comprises a cylinder unit 4, a forming unit 5, and an extension unit 6. The rainbow body unit 4 has a thick-walled ring 4 that can define an inner hole 410 for accommodating a liquid (ie, a pressure medium), and a sleeve C and a two-phase stacking sleeve that are accommodated in the inner hole. The seal ring 43 on the sleeve 42 and the front striker 44 and the rear baffle 45 are respectively fixed at opposite ends of the wall circle & The front striker plate 44 is formed with a front axle hole 441 communicating with the inner hole, and a 442 extending internally and connected to the front axle 441 for inputting a pressure medium, the rear baffle 45 being formed with a communication The rear axle hole 451 of the inner bore 410. In the preferred embodiment, it is represented by only one layer of thick-walled ring 41, 7 200800432, but in actual implementation, it may be composed of multiple layers of overlapping thick-walled rings 4i to withstand high pressure, and should not This is a limitation. The sleeve 42 has a sealing section 421 ' adjacent to the end of the thick-walled ring 41 and - extends forward from the sealing section 421 and has an outer diameter smaller than the sealing section 421 = connecting section 422. A plurality of irregularly arranged orifices 423 are formed in the connecting section 422. The sealing ring 43 is looped over the connecting section and abuts against the sealing section 421. In the preferred embodiment, the outer diameter of the sealing segment 421 is slightly smaller than the inner diameter of the inner hole of the thick-walled ring, so that the sealing ring 43 can function to achieve a better sealing effect and extend the sealing ring. The life of 43. Each of the perforations 423 allows the pressure medium to flow outside the inner disc of the sleeve 42. The pressure inside and outside the sleeve 42 can be balanced to avoid affecting the number of the seal rings 43 of the thick wall due to the ring 4 described above. It can be adjusted according to the design requirements, of course, it can also be used one or more. The forming unit 5 is received in the inner hole 4 ι of the thick-walled ring 41 and is in contact with the sleeve 42. The forming unit 5 has an eye mold 5 and a sleeve for the wire 3 to pass through. A seal ring 52 is provided on the eye mold 51. The cough can define an inlet taper groove 511, a parallel port 512, and a second outlet taper groove 513. The wire 3 enters from the inlet taper groove 511 and can shout its outer diameter, and the parallel port 512 improves the forming accuracy. The extension unit 6 is sleeved on the punch 2, and has a fixing ring sleeve 6 at the end of the punch 2, which is inserted into the fixing ring sleeve and can be inserted into the cylinder unit 4 The punch extensions in the sleeve 42 & and the sealing ring sleeved on the front end of the punch extension 62... - 8 200800432 The punch extension 62 is specially cut before the material 44 The aperture ' of the shaft hole (4) allows the aforementioned seal ring 63 to function to achieve a better sealing effect and extend the lifespan. The inner diameter of the 5th sleeve 42 should also be the same as the diameter of the front shaft hole 441. When the punch extension 62 passes through the interface, the Rongxian Ding Ling may leak or The seal ring 63 is scraped off, affecting the progress of the extrusion process. When the hydrostatic extrusion forming process is performed, the front end portion (sharpened) of the wire 3 is first inserted into the inlet taper groove 511 + of the eye mold 51, and the eye mold 51 is sequentially aligned with the wire 3 and the sleeve 42. The inner hole 41 is placed in the inner hole 41. Next, the mouth punch 2 is moved so that the front end of the punch extension 62 penetrates into the front hole 441 of the front dam material, but does not exceed the oil passage 442. Then, the pressure medium is poured from the oil filling passage 442 to fill the inner hole 41. Finally, the punch 2 is moved forward, and the pressure is increased by compressing the pressure medium. When the pressure reaches an appropriate value, the wire 3 is extruded out of the eye mold 51, and the diameter reduction of the wire 3 is completed. Forming work. It should be noted that the above-described example is improved without changing the original punch 2, and therefore, the extension unit 6 needs to be additionally provided. Of course, if the outer diameter of the punch 2 has satisfied the sleeve 42, that is, the outer diameter of the punch 2 is slightly smaller than the diameter of the shaft hole 441 before the front baffle 44, so the extension unit can be omitted. The direct extrusion of the punch 2 into the cylinder unit 4 is not intended to limit the scope of application of the invention. In summary, the hydrostatic extrusion forming device of the present invention utilizes the arrangement of the sleeve 42 of the cylinder unit 4 to occupy a portion of the space of the inner hole 410 of the thick-walled ring 41, thereby reducing the use of the pressure medium. Quantity to save the acquisition cost of the pressure medium 9 200800432. More importantly, because the amount of pressure medium used is reduced, the amount of compression is also reduced. When the punch 2 starts to operate, the pressure medium can be quickly pressurized, and at the same time, the pressure medium does not accumulate excessive energy. The phenomenon that the wire 3 is blasted at the moment of starting the extrusion is avoided, and also because the amount of the pressure medium used is small, the speed of replenishing the pressure is also relatively fast, thereby making the extrusion speed of the wire 3 easier to be controlled. . In addition, due to the arrangement relationship of the sleeve 42, the effect of reducing the diameter of the inner hole 410 is caused, and the extension unit 6 is allowed to be
之沖頭延伸件62每移動單位距離可以具有較佳的壓力控制 效果，藉此有效地提高製程的控制精度，所以確實能達到 本發明之目的。 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，即大凡依本發明中請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1疋㈣視剖面圖，說明習知之靜液壓擠製成形裝 置在進行擠製的使用狀態； 、 圖2是一側視剖面圖，說明本發明靜液壓擠製成形裝 置之較佳貫施例是處於可將液體注入的狀態； ，3是-側視剖面圖，說明該較㈣施例正處於掛製 說明一缸體單元之套筒的 圖4是一局部剖面俯視圖 態樣。 10 200800432 【主要元件符號說明】 2 ” 一4 ……沖頭 /| ^ κ Φ a ^ ……後擔板 3…… …"線材 451 - ……後軸孔 4 -- ……缸體單元 5…+ ……成形單元 41 ♦… …·，厚壁圓環 51 “ ……眼模 410- ……内孔 511 ……入口錐槽 42，… ♦…套筒 512 ^ ……平行通口 421… …"密封段 513， ……出口錐槽 422 - …μ連通段 52… ……密封環 423 - …“穿孔 6 ♦» « ……延伸單元 /| ^ 4- K K 密封環 61… ……固定環套 /| /| * ^ f 4, 前擔板 62"· ……沖頭延伸件 441… ……前軸孔 63… ……密封環 442 - …"注油通道The punch extension 62 can have a better pressure control effect per moving unit distance, thereby effectively improving the control precision of the process, so that the object of the present invention can be achieved. However, the above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent change and modification according to the scope of the patent and the description of the invention in the present invention. All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1(d) is a cross-sectional view showing a state of use of a conventional hydrostatic extrusion molding apparatus in an extrusion process; and FIG. 2 is a side sectional view showing a hydrostatic extrusion molding apparatus of the present invention. The preferred embodiment is in a state in which a liquid can be injected; 3 is a side cross-sectional view, which illustrates that the fourth embodiment is in a state in which the sleeve of the one-cylinder unit is hung. FIG. 4 is a partial cross-sectional plan view. Aspect. 10 200800432 [Description of main component symbols] 2 ” a 4 ...... punch /| ^ κ Φ a ^ ...... rear plate 3 ... ... " wire 451 - ... rear axle hole 4 -- ... cylinder unit 5...+ ......forming unit 41 ♦........., thick-walled ring 51 "...eye mold 410-...inner hole 511...inlet cone groove 42,... ♦...sleeve 512 ^ ......parallel port 421 ..."seal section 513, ...outlet cone groove 422 - ...μ connection section 52.........seal ring 423 - ... "perforation 6 ♦» « ...... extension unit /| ^ 4- KK seal ring 61... ...... Fixing ring sleeve /| /| * ^ f 4, front plate 62"·...punch extension 441.........front shaft hole 63.........seal ring 442 - ..." oil passage