4 6 91 9 1 Λ7 B7 五、發明説明（） 發明所屬技術領域 本發明係關於切斷鋼管等之管材方法及裝置。 μ 〃先前之技術及其課題〃 ** 先前，切斷鋼管等之管材，在比較壁厚之情形，係使 管材使用虎頭鉗使固定著，藉由旋轉之圓鋸刀進行切斷| 但藉此•由於橫斷管材使圓鋸刀移動加以切斷，必需比管 材相當大徑的圓鋸刀•而且圓鋸刀之移動衝程也變長，因 此圓鋸刀之成本成爲非常昂貴，切斷也要相當長時間之問 題。 又，在比較薄壁之管材情形，係使用圓板狀之切斷 器，一邊將管材旋轉於其軸芯周園，一邊將圓板切斷器對 管材前進於垂直之方向藉由切斷進行切斷，但藉由該圓板 切斷器，則使切斷器之刀部因爲形成錐形狀，所以在其切 斷時形成相當大的膨脹於管材之切斷端部外周，而在切斷 後要除去該膨脹卻要非常多的時間，進而薄壁的管材或柔 軟材質之管材的情形係由圓板切斷器之拉深作用使該管 材會產生變形之問題。 -濟部中央梂準局只工消资合作社印" (請先閱讀背而之注意事項再填巧本页) 本發明，係有鑑於上述問題，提供一種切斷方法及其 裝置，其目的在於，與管材之徑同等或更小徑之圓鋸刀也 可使用，同時將圓鋸刀之移動衝程可更短，又藉由圓板切 斷器之使用由於管材切斷端部外周之膨脹，或前述拉深作 用可防止管材變形。 ^ 〃解決問題之手段**** 有關申請專利範岡第1項之發明管材之切斷方法，其 特徵在於：一邊將應切斷管材W使旋轉於其軸芯周圆， 一邊對管材W將進退於垂直方向之V溝形成用圓鋸刀比 管材W以更快周速使旋轉在管材外周面形成預定深度之 4 本紙ί良尺度適用中國國家標準（CNS ) 彳M 2U1X297公垃） Λ7 4 6 919 1 B7 五、發明説明（） ^^1 JIJJ UJ I —^^1 ^^^1 ^^^1 · -^__ ^^^1 ^^^1 .^^^1 ^^^^1 ^—^1» ^^4 -¾ 、τ (請先閱讀背而之注意事項再填巧本頁) 斷面V字溝形55，藉巾該V字形溝55之形成將剩下之厚 壁部分Z，與前述|?1|鋸刀5係山適常問隔於周方向之位 膜，釗V字溝形5 5骼山巡返於朮胳方向之旋轉Θ由的Μ 板切斷器所切斷冇。 申請專利範岡第2项，係如申請專利肫園第1項所記 載之管材之切斷方法中，其特徵在於：將管材W之旋轉 方向及圓鋸刀5之旋轉方向相π相反者。 有關申請專利範圍第3項之發明管材之切斷裝置，其 特徵在於其構成具備有：旋轉驅動裝備4，將應切斷管材 W藉由卡盤3加以固定使旋轉於軸芯周圍；圓鋸裝備6， 具有旋轉驅動之V溝形成用圓銦刀5，將該圓鋸刀5對管 材W使預定衝程S 1進退於直交方向；及切斷器裝備8， 與前述圓鋸刀5係在間隔於周方向之位置具有圓板切斷 器，將該切斷器7對管材W使預定衝程S2進退於垂直方 向。 τ 經漪部中央抒準局另工消费合作社印" 申請專利範園第4項，係如申請專利範園第3項所記 載之管材之切斷裝置中，其特徵在於：前述卡盤3其構成 係具備有：錐形狀拼合模之卡盤用夾頭1 8，用以摑持固 定貫通固定箱內之管材W的所要部；夾頭開關作動用套 管I 9，在前端部具有可嵌合於夾頭1 8之錐形部1 8 a的錐 形嵌合部1 9a，以其自體可旋轉且可移動於_方向；套管 推拉構件2 ]，在該套管i 9之後端部與該套管1 9以一體可 軸方向移動且與此連結於可相對旋轉；及流體壓汽缸23， 將該套管推拉構件2 1通過搖動連桿機構22‘使移動於軸方 向前後：而藉由該汽缸23伸縮作動將套管推拉構作2 I推 拉於前後將前述套.管1 9之錐形嵌合部1 9a對夾頭丨8之錐 形部1 8a藉嵌脫使夾頭I 8開關作動，藉由關動成爲用以 木紙张尺度埔用中阈國家標苹（〔「NS ) Λ4規格（Ή〇；<297公允） 五、 所設置 A7 B7 發明説明（） 摑持符材W，而前述旋轉驅動裝旳4，iH _成係具備有： 简狀傅動輪26，在间定钔1內支持於可旋轉且在夾頭1 8 迎結於_·體可旋轉；及尚輪機構2 8，利用馬達2 7所驅動 使前述傳動軸2 6旋轉。 發明之實施形態〃u 圖1係有關本發明切斷裝置之正而圖，圖2係其縱剖 側視圖。此等之圖中，1係固定箱，在該箱1內之中心部， 由切斷裝置之後方藉由管材送給裝置之推進器（未圖示） 所送給形成貫通鋼管等之符材W的貫通路2,而在該貫通 路2之周圍，係將管材W其:切斷位置P正前側近傍藉由卡 盤加以固定使旋轉於管材軸芯周園設有旋轉驅動裝備 4。對於卡盤3及旋轉驅動裝備4係在後面加以詳述。又， 如圖1所示’在固定箱1之前而側，係具有旋轉驅動之圓 鋸刀5，將該圓鋸刀5戍丨應切斷管材W之一側方（圖中左 側方）對該管材W使預定衝程s 1進退於，垂直方向構成 之圓鋸裝置6 ’及前述圓鋸刀5係在各間隔9 0度於周方向 的上下位置具有一對之圆板切斷器7、7，將面圓板切斷 器7、7對管材W使預定衝程s 2進退於垂直方向構成之 上下一對切斷器裝置8 圓館裝置ό係如圖1、圖3及圖4所示，以樞軸a爲 中心將圓鋸刀5軸支承於搖動之鋸刀框b的遊端部側，並 將圓鋸刀5之旋轉軸C利用馬達d使旋轉驅動，將馬達d 之輸出軸e及第1傳動籼f藉[:丨..j丨nj步滑輪g ' ^及同步皮 帶i加以連動連結，並將該第|傳動軸f及第2傳動軸j藉 由齒輪k、1加以連動連結，將第2傳動軸j之旋轉通過齒 輪m、n傅達到旋卿軸c。网3中q，係與接近於圓鋸刀 5最終段齒輪η加以嚙合而除去該商輪^之後衝嗯所設置 氣 訂 (請先閱讀背面之注意事項再填巧本I) 部 中 央 標 消 f： 合 il i'- 印 Λ7 B7 _____ 五、發明説明（） ----------‘-- (請先閱讀背面之注意事項蒋填朽本頁) 之齒輪。又，在鋸刀框b之遊端部及固定框下之間係通過 鋸刀框b將圓鋸刀5對恃材W爲了使預定衝程S 1進退移 動介設有流體壓汽缸1 0，該岡鋸刀5之進退衝程S 1 (圖 10之（1)所示），係將流體壓汽缸10之衝程藉由調整可任 意設定。圓鋸裝備6之圓鋸刀5 ,係如圖9之（A)〜（C)所 示，在鋸刀本體5a之周緣形成附V字形溝成刀片5b之切 削刀部5c。 一對之切斷器裝置8、8，係如圖丨所示，在上下配 備成對稱狀使上下之圓板切斷器7、7對管材W成爲同步 進退。各切斷器裝置8，係並設於正面視略呈C字形之切 斷器框Π分別在上下可滑動之第丨桿1 1及第2桿12，在 兩桿I 1、1 2間之中間位置藉由樞軸9樞著於切斷器框13 側，同時使兩端部具有樞支連結於兩桿Π、1 2之搖動連 桿1 4，及使第1桿Π上下移動之流體壓汽缸丨5，而在第 2桿1 2之前端部軸支亲圓板切斷器7。圖1係顯示各流體 壓汽缸1 5在收縮位置，各切斷器裝置8之圓板切斷器7 對管材W後退之位置的狀態。可是，由圖示之狀態，譬 如使上部之流體壓汽缸1 5伸長作動，則使第1桿上動於 如虛線圖示，藉此使搖動連桿1 4以樞軸9爲中心搖動於 圖1之反時鐘旋轉•使第2捍1 2下動於如虛線圖示，使上 部之圓板切斷器7如虛線圖示對管材W前進。對於下部之 圓板切斷器7進行完全相同作動。還有，圖9之（D)係顯示 圓板切斷器7之重要部分剖而圆。 該情形，使各圓板切斷器7進退移動於後退位置及前 進位置之問的衝程S1 (圖10之（2)所示），係將流體壓汽 缸1 5之衝程藉山調整珂仃意設定。如岡1所示，在各第1 桿1 1之上下端部，係使收縮限擋塊1 6 a及仲長限擋塊1 7 a 7 本紙烺尺度適用中國园家標準（C:NS Γ^4規格（210X297公炸) Α7 Β7___ 五、發明説明（） 通過安裝構件16b、17b所螺著，擋拉此等之擋塊16a、 1 7b之擋接構作1 6c ' 1 7c係設於切斷器框1 3側。因此， 流體壓汽缸1 5之收縮位置係使收縮限擋塊1 6a藉由擋拉 於擋拉構作I 6c所限制，藉此決定圓板切斷器7之衝程S2 的後退限位置，又流體腿汽缸I 5之仲展位置係使伸長限 擋塊1 7a藉由擋拉於擋接棉件1 7c所限制，藉此決定圓板 切斷器7之前進限位置。還有，各擋塊1 6a、I 7a，係與 各擋接構件丨6c、1 7c之間隔成爲可自由調整。 經济郎中失忧々局工消费合作社印" (諳先閱讀背面之洼意事項再填穷本頁) 前述卡盤3，係如圖2所示，其楛成係具備有：錐形 狀拼合模之卡盤用夾頭18，用以摑持固定貫通固定箱1 內之管材W的切斷位置P正前側近傍；夾頭開關作動用套 管1 9，在前端部具有可嵌合於夾頭1 8之錐形部1 8a的錐 形嵌含部1 9a，以具自體可旋轉且可移動於軸方向；短筒 狀之套管推拉構件2在該套管1 9之後端部1 9b通過軸 承20與該套管1 9以· '·體可轴方向移動且與此連結於可相 對旋轉；及流體腿汽魟23，將該套管推拉構件2 1通過搖 動連桿機構22使移動於軸方向前後。因此，藉由前述汽 缸23之伸縮作動使搖動連桿機構22搖動於前後，將套管 推接構件2 ]藉由推拉於軸方向前後，使前述套管1 9之錐 形嵌合部1 9a對前述夾頭1 8之錐形1 8a嵌脫，並使夾頭I 8 關動（縮徑）或開動（擴徑），藉由其開動成爲用以摑持 固定管材W =又，前述旋轉驅動裝備4，其構成係具備有： 简狀傳動軸26，在：前述吲定筘1内迎過軸承24、25支 持於可旋轉，在前述夾頭1 8連結於一體可旋轉；及齒輪 機構28，藉由馬達27所驅動使筒狀傳動軸26旋轉。 對於上述卡盤3之構造參考圖5及圖6更詳細加以說 明，則搖動連桿機構22，係由配置於套管推拉構作2丨之 8 ^紙悵尺度適用巾家嵇次 ( cns ) λμ见格（imx297公及) Λ7 Β7 46 919 五、發明説明（） 兩側之一對搖動柄2 9、2 9所構成，兩搖動柄2 9、2 9之 下端部’係在取著於固定箱1之基台部的托架3 7藉由旋 轉支軸3 0所樞著，而中問部，係通過滑勋接合部3 1、3 1 在套管推拉構件2 1之兩側部接合於可上下滑動變位，而 上端部’係通過旋轉支軸32樞著於流體壓汽缸23之活塞 桿 23a。 圖2及圖5係顯示關動卡盤用夾頭1 8用以摑持固定管 材W時之搖動柄2 9的狀態，該時流體壓汽缸2 3係在收縮 位置。由該狀態，使流體鞑汽缸23伸長作動，則搖動柄 29以其下端部之旋轉支軸30爲中心搖動於同圖之時鐘旋 轉’藉此使套管推拉構件2 1移動於軸方向後方，將夾頭 開關作動用套管1 9拉到後方，藉此將卡盤用夾頭1 8加以 擴徑（開放），藉由該夾頭丨8用以解除管材W之摑持固 定。由該卡盤解除狀態，使流體壓汽缸23藉由收縮作動， 使搖動柄29搖動於反時鐘旋轉，將夾頭開關作動用套管 1 9推動到前方，並使該套符1 9之錐形嵌合部1 9a接壓嵌 合於夾頭1 8之錐形部1 8，藉此將夾頭1 8加以縮徑（關動） 成爲用以摑持固定管材W。還有，在卡盤用夾頭1 8，係 如圖2所示，具有對應於管材W之外徑的內徑使蓋3 3、 34裝著於自由裝卸，同圖之上側一半係顯示小徑之管材w 用的蓋33，下側一半係顯示大徑之管材用之蓋34。 前述旋轉驅動裝備4中，係藉由馬達27所驅動使筒 狀傳動軸26旋轉之齒輪機構28，係如圖2所示，係由設 於筒狀傳動軸26之外周的旋管輪3 5，及設於馬達27之輸 出軸27a側並嚙合於前述旋管輪35之旋管36所構成。又， 筒狀傳動軸26，係鞀出迪設於此之前端的短筒狀構件38 及端板39，對前述夾頒1 8以.體可旋轉ϋ容許該夾頭1 8 本纸張尺度適用中围囷家標準（CNS ) Μ現格（2Ι()Χ21;7公泣） ---------k — (請先閱讀背面之注意事項再填艿本頁)4 6 91 9 1 Λ7 B7 V. Description of the invention () Technical field of the invention The present invention relates to a method and a device for cutting pipe materials such as steel pipes. μ 〃Previous technology and its problems〃 ** In the past, when cutting pipes such as steel pipes, when the wall thickness was relatively large, the pipes were fixed using a vise and cut with a rotating circular saw | But This means that • the circular saw blade must be moved and cut by traversing the pipe, and a circular saw with a diameter larger than that of the pipe must be used. • The moving stroke of the circular saw blade is also longer, so the cost of the circular saw blade is very expensive. It also takes quite a long time. Moreover, in the case of relatively thin-walled pipes, a disc-shaped cutter is used, while the pipe is rotated around its shaft core, the disc cutter advances the pipe in a vertical direction by cutting. Cutting, but with this circular plate cutter, the cutter portion of the cutter is formed into a tapered shape, so that it expands considerably at the outer periphery of the cutting end portion of the pipe during cutting, and after cutting, It takes a lot of time to remove the expansion, and the thin-walled pipe or soft material pipe is deformed by the deep drawing effect of the circular plate cutter. -Printed by the Central Ministry of Economic Affairs of the Ministry of Economic Affairs of the People's Republic of China. (Please read the precautions on the back before filling out this page.) The present invention is to provide a cutting method and its device in view of the above problems, and its purpose The reason is that a circular saw with the same or smaller diameter as the pipe can be used. At the same time, the circular stroke of the circular saw can be shorter, and the expansion of the outer periphery of the cut end of the pipe due to the use of the circular plate cutter , Or the aforementioned drawing effect can prevent deformation of the pipe. ^ 〃Means for solving problems **** The method for cutting a pipe of the invention patent for Fangang No. 1 is characterized in that the pipe W is cut while the pipe W should be cut and rotated around the axis of the shaft core. The circular saw blade for forming the V groove in the vertical direction makes the rotation at a faster peripheral speed than the pipe W to form a predetermined depth of 4 on the outer surface of the pipe. The paper is compliant with the Chinese National Standard (CNS) 彳 M 2U1X297 male waste. Λ7 4 6 919 1 B7 V. Description of the invention () ^^ 1 JIJJ UJ I — ^^ 1 ^^^ 1 ^^^ 1 ·-^ __ ^^^ 1 ^^^ 1. ^^^ 1 ^^^^ 1 ^ — ^ 1 »^^ 4 -¾, τ (please read the precautions on the back and fill in this page first) Section V-shaped groove 55, the thickness of the V-shaped groove 55 will be left thick. The wall part Z is separated from the aforementioned |? 1 | Saw blade 5 series of mountains, which is usually located in the circumferential direction, and the zigzag V-shaped groove 5 5 is rotating in the direction of the arm. The Θ is cut by the Μ plate. The device is cut off. Item 2 of the applied patent Fangang is the cutting method of the tube as described in item 1 of the patent application in Gion, which is characterized in that the rotation direction of the tube W and the rotation direction of the circular saw blade 5 are opposite to each other. The invention relates to a cutting device for a pipe in accordance with the third aspect of the patent application, which is characterized in that it is provided with a rotation driving device 4 that fixes the pipe to be cut W by a chuck 3 and rotates around the shaft core; a circular saw Equipment 6, a V-groove forming indium blade 5 with a rotary drive, the circular saw blade 5 is advanced and retracted in a direction orthogonal to the predetermined stroke S1 to the pipe W; and the cutter equipment 8, is connected with the circular saw blade 5 A disc cutter is provided at a position spaced in the circumferential direction, and the cutter 7 advances and retreats the tube W in a predetermined stroke S2 in the vertical direction. τ Printed by the Central Bureau of Accreditation of the Ministry of Economic Affairs and the Ministry of Industry and Consumer Cooperatives " Patent Application Fanyuan Item 4, which is the cutting device for the pipe as described in Item 3 of the Patent Application Fanyuan, which is characterized by the aforementioned chuck 3 Its structure is provided with a chuck chuck 18 for a cone-shaped split mold to hold and fix the required part of the pipe W passing through the fixed box, and a chuck switch operating sleeve I 9, which is provided at the front end. The tapered fitting portion 19a fitted to the tapered portion 18a of the collet 18 is rotatable and movable in the _ direction by itself; the sleeve push-pull member 2], after the sleeve i9 The end and the sleeve 19 are integrally movable in the axial direction and are connected to be relatively rotatable therewith; and the fluid pressure cylinder 23 pushes the sleeve push-pull member 21 1 to move forward and backward in the axial direction by rocking the link mechanism 22 ' : The sleeve 23 is pushed and pulled by the telescoping action of the cylinder 23 to push the pull sleeve back and forth to push the front and back sleeves. The tapered fitting portion of the tube 19 is connected to the tapered portion of the chuck 1 by the 8a. The chuck I 8 switch is actuated, and by turning it off, it becomes the national standard for the paper and paper standard (["NS) Λ4 specification (Ή〇; & l t; 297 fair) V. Set A7 B7 Description of the invention () Holding the amulet W, and the aforementioned rotary drive device 4, iH _ system is provided with: a simple Fu moving wheel 26, which is supported by It is rotatable and can be rotated on the chuck 1 8 and the body is rotatable; and the still wheel mechanism 2 8 is driven by the motor 27 to rotate the aforementioned transmission shaft 26. Embodiments of the invention Fig. 1 is related to the present invention A front view of the cutting device, and FIG. 2 is a longitudinal cross-sectional side view. In these drawings, 1 is a fixed box, in the center of the box 1, is sent to the device through the pipe after the cutting device. A thruster (not shown) is given to the through-passage 2 that forms the armature W through which a steel pipe or the like is formed, and around the through-passage 2, the pipe W is placed near the front side of the cutting position P by a chuck. The rotation drive device 4 is fixed to rotate around the pipe shaft core. The chuck 3 and the rotation drive device 4 are described in detail later. Also, as shown in FIG. The circular saw blade 5 driven by rotation should cut one side of the pipe W (the left side in the figure) to the pipe W The fixed stroke s 1 advances and retreats to the circular saw device 6 ′ and the circular saw blade 5 configured in the vertical direction. The circular saw device 5 has a pair of circular plate cutters 7 and 7 at intervals of 90 degrees in the circumferential direction. Circular plate cutters 7, 7 pairs of pipes W are moved forward and backward in a predetermined stroke s 2 to form a vertical pair of upper and lower cutter devices 8 The circular hall system is shown in Figs. 1, 3, and 4 with a pivot A is used as a center to support the circular saw blade 5 on the swinging end side of the swinging blade frame b, and the rotary shaft C of the circular saw blade 5 is driven to rotate by the motor d, and the output shaft e of the motor d and the first Transmission 籼 f is linked by [: 丨 ..j 丨 nj step pulley g '^ and timing belt i, and the | | transmission shaft f and the second transmission shaft j are linked by gears k, 1 to The rotation of the second transmission shaft j reaches the rotation shaft c through the gears m and n. The q in the net 3 is meshed with the gear η which is close to the final section of the circular saw blade 5 and the commercial wheel is removed. After that, the air-set is set (please read the precautions on the back before filling in the book I). f ： il i'- 印 Λ7 B7 _____ V. Description of the invention () ----------'-- (Please read the note on the back first to fill out this page) Gear. Further, a circular saw blade 5 is paired with a saw blade W through a saw blade frame b between the free end of the saw blade frame b and the fixed frame. A fluid pressure cylinder 10 is provided to advance and retreat the predetermined stroke S 1. The forward and backward stroke S 1 of the saw blade 5 (shown in (1) of FIG. 10) is that the stroke of the fluid pressure cylinder 10 can be arbitrarily set by adjusting. The circular saw blade 5 of the circular saw equipment 6 is shown in (A) to (C) of FIG. 9, and a cutting portion 5c with a V-shaped groove and a blade 5b is formed on the periphery of the saw body 5a. The pair of cutter devices 8, 8 are arranged symmetrically on the upper and lower sides, as shown in Figure 丨, so that the upper and lower circular plate cutters 7, 7 can advance and retreat the pipe W synchronously. Each of the cutter devices 8 is arranged in a C-shaped cutter frame Π in front view, which can be slid up and down, respectively, between the first and second rods 11 and 12, and between the two rods I 1 and 12. The intermediate position is pivoted on the side of the cutter frame 13 by a pivot 9 and at the same time, both ends have a swing link 14 which is pivotally connected to the two rods Π, 12 and a fluid that moves the first rod Π up and down. The cylinder 5 is pressed, and the end shaft supports the circular disc cutter 7 before the second rod 12. Fig. 1 shows a state where each of the hydraulic cylinders 15 is in a retracted position, and the disc cutter 7 of each cutter device 8 retracts the pipe W. However, from the state shown in the figure, for example, if the upper hydraulic pressure cylinder 15 is extended and actuated, the first rod is moved up as shown by the dotted line, so that the swing link 14 is swung around the pivot 9 as shown in the figure. 1 counterclockwise rotation • Move the second guard 1 2 down as shown by the dotted line, and make the upper disc cutter 7 advance the pipe W as shown by the dotted line. The same operation is performed on the lower disc cutter 7. Note that (D) of FIG. 9 shows that the important part of the disc cutter 7 is rounded. In this case, the stroke S1 (shown as (2) in FIG. 10) of moving the disc cutters 7 forward and backward to the reverse position and the forward position is to adjust the stroke of the fluid pressure cylinder 15 by the mountain. set up. As shown in Gang 1, at the upper and lower ends of each of the first rods 11, the shrinkage limit stop 16a and the mid-length limit stop 17a7 are used in accordance with Chinese garden standards (C: NS Γ) ^ 4 specifications (210X297 public bomb) Α7 Β7 ___ V. Description of the invention () By mounting screws 16b, 17b, the stopper structure of these stoppers 16a, 1 7b is 16c '1 7c The cutter frame 13 side. Therefore, the contraction position of the fluid pressure cylinder 15 is restricted by the contraction limit stop 16a by pulling the stopper structure I6c, thereby determining the position of the disc cutter 7 The backward limit position of the stroke S2 and the intermediate position of the fluid leg cylinder I 5 are limited by the extension limit stop 17a by pulling on the stop cotton piece 17c, thereby determining the forward advancement of the disc cutter 7. In addition, the distance between each stop 16a, I7a and each stop member 6c, 17c becomes freely adjustable. Worries in Economy Lang, Bureau of Industry and Consumer Cooperatives, " (Read the back first The chucks 3 are as shown in Figure 2. The chuck 3 is equipped with: a chuck 18 with a cone-shaped split mold for holding and fixing through The cutting position P of the pipe W in the fixed box 1 is near the front side; the collet switch operating sleeve 19 has a tapered embedded portion at the front end that can be fitted to the tapered portion 18 of the collet 18 19a, with its own body rotatable and movable in the axial direction; short cylindrical sleeve push-pull member 2 after the sleeve 19, the end portion 19b through the bearing 20 and the sleeve 19 with the body It can move in the axial direction and can be connected to it for relative rotation; and the fluid leg steamer 23, the sleeve push-pull member 21 is moved forward and backward in the axial direction by rocking the link mechanism 22. Therefore, by the expansion and contraction of the cylinder 23 described above Actuate the rocking link mechanism 22 to the front and back, and push the sleeve connection member 2] by pushing and pulling in the axial direction back and forth, so that the tapered fitting portion 19a of the sleeve 19 is tapered to the chuck 18 1 8a is engaged and disengaged, and the chuck I 8 is closed (reduced diameter) or opened (expanded diameter), and actuated to hold the fixed pipe W = Also, the rotation driving equipment 4 described above is provided with : The simple drive shaft 26 is supported by the bearings in the above-mentioned indigo ring 1 and can be rotated by the bearings 24 and 25, and can be connected to the chuck 18 in one piece. And the gear mechanism 28, which is driven by the motor 27 to rotate the cylindrical transmission shaft 26. For the structure of the chuck 3 described in more detail with reference to Figs. 5 and 6, the swing link mechanism 22 is configured by Casing push-pull structure 2 丨 8 ^ Paper 怅 scale is suitable for household use (cns) λμ Seek (imx297 public) Λ7 Β7 46 919 V. Description of the invention () One of the two sides of the shaking handle 2 9, 2 9 is formed, the lower ends of the two rocking handles 2 9 and 2 9 are attached to the bracket 3 7 taken from the abutment portion of the fixed box 1 by the pivot support shaft 30, and the middle part is The sliding joints 3 1 and 3 1 are connected to both sides of the sleeve push-pull member 2 1 to be able to slide up and down, and the upper end portion is pivoted to the piston rod 23 a of the fluid pressure cylinder 23 through the rotation support shaft 32. . Figs. 2 and 5 show the state of the swing handle 29 when the chuck 18 for closing the chuck is used to hold the fixed pipe W, and the fluid pressure cylinder 23 is in the retracted position at this time. From this state, the fluid pump cylinder 23 is extended and actuated, and the rocking handle 29 is swung around the lower support of the pivot shaft 30 as the clock in the same figure to rotate, thereby moving the casing push-pull member 21 to the axial direction. The collet switch operating sleeve 19 is pulled to the rear, thereby expanding the diameter of the chuck collet 18 (opening), and the collet 丨 8 is used to release the holding and fixing of the pipe W. The chuck is released, the fluid pressure cylinder 23 is actuated by contraction, the rocker lever 29 is rotated in counterclockwise rotation, the collet switch operating sleeve 19 is pushed forward, and the cone 19 is tapered. The shape fitting portion 19a is pressure-fitted to the tapered portion 18 of the collet 18, thereby reducing the diameter of the collet 18 (closing) to hold the fixed pipe W. In addition, as shown in FIG. 2, the chuck chuck 18 has an inner diameter corresponding to the outer diameter of the pipe W, and the caps 3 and 34 are attached and detached freely. A cover 33 for a pipe w having a large diameter, and a lower half thereof is a cover 34 for a pipe having a large diameter. In the aforementioned rotary drive equipment 4, the gear mechanism 28 that rotates the cylindrical transmission shaft 26 driven by the motor 27 is shown in FIG. 2 by a coil wheel 3 5 provided on the outer periphery of the cylindrical transmission shaft 26. And a coil 36 provided on the output shaft 27a side of the motor 27 and meshing with the coil wheel 35 described above. In addition, the cylindrical transmission shaft 26 is a short cylindrical member 38 and an end plate 39 provided at the front end, and the above-mentioned clip is rotated by 18. The body can be rotated, and the chuck is allowed. This paper size is applicable Zhongwei Family Standard (CNS) Μ is now available (2Ι () × 21; 7 wee) --------- k — (Please read the precautions on the back before filling this page)
、1T Λ7 Β7 4 6 919 五、發明説明（） 之擴縮所連結。因此，藉凼馬達27之驅動通過齒輪機構 28使筒狀傳動蚰26旋轉，則通過短筒狀構件38及端板39 使夾頭I 8旋轉，此時夾頭1 8若在縮徑（關動）狀態，則 藉由夾頭1 8使被摑持固定後之管材W旋轉，又夾頭1 8若 在擴徑（開放）狀態1則管材W係由夾頭1 8所開放而成 爲不旋轉。 圖7係顯示將管材W爲了切斷成固定長度尺寸之定 長擋塊40，圖8係顯示使管材W前進到定長擋塊40之位 置爲止推進器之推棒4 1。定長掼塊40，係由機框42及擋 塊本體44所構成，而擋塊本體44，係藉由手柄45可伸縮 移動調整於管材送給方向之支持桿46，及在該桿46之前 端部設有通過軸承47裝著於自由旋轉之擋塊48。又，機 框42 ’係在設於安裝台50之傾斜狀導軌5 1支持於可滑 動，藉由流體壓汽缸52之伸縮作動，如實線所示擋接於 管材W之前端的前進位置，及如虛線所示由管材W之送 _給經路退避之退避位置之問成爲可進退預定衝程S3。又， 在推進器之推棒4 1，係在其前端部通過軸承53使管材接 合部54裝著於自由旋轉，而該管材接合部54，係成爲接 合於管材W之後端部。 其次，藉由具有如上述構成之切斷裝置的使用·對於管 材W之切斷方法加以說明。 首先，依據應切斷管材W之壁厚Τ，利用圓鋸刀5 形成之V字形溝55的深度D，將該圓鋸刀5之進退衝程 S 1，及圓板切斷器7之進返衝程S2分別設定（圖丨0之（1) 及（2)參考）。V字形溝55之深度D，係做爲管材W之壁 厚Τ約1 〇〜60 %的範關。圆鋸刀5之進退衝程S 1係藉由 流體壓汽缸1 0，又圓板切斷器7之進退衝程S2係藉由流 10 木紙張尺度適用中國國家棉準（CNS ) Λ4規格（21UX297公炸） (請先閱讀背面之注意事項再填ft?本頁) 訂 恕濟部中央桴挛局妇工消费合作社印¾ Μ^--部t央標準局貝工消f合作社印长 b 91 9 1 A7 ___B7 五、發明説明（） 體壓1 5分別加以設定。又，將定長擋塊40，如圖7之實 線圖示被擋板48與貫通切斷裝置之固定箱1內的管材W 之前端使前進到對置之位置，將擋板48定位於預定位置， 用以設定管材W之切斷長度。 可是，將管材W山切斷裝霞之後方藉由前述推進器 之推棒4 1加以推進，使管材W之先前擋接於上述擋板48 後，將管材W利用卡盤加以摑持固定，並藉由旋轉驅動 裝備4將管材W在其軸芯周園以預定之周速與圓鋸刀5使 旋轉於相反方向（參考圖1 )。該情形，將管材W之周速 譬如做爲約1 〇m /分，將圓鋸刀5之周速譬如做爲約250m /分， 如上述將管材W -··邊旋轉於軸芯周圍，如圖10之（1) 所示，一邊將圓鋸刀5沿著管材W之切斷位置P藉由使衝 程S1進退，在管材W之外周形成V字形溝55，藉由該V 字形溝55之形成將_餘之壁厚部分Z 1如同圖之（2)所示 使圓板切斷器7藉由使衝程S2進退加以切斷。該情形， 圓板切斷器7，係腿緊在旋轉之哲材W，並追從於此加以 旋轉。如此將切斷後之管材W之切斷端部顯示於同圖之 (3)。以後，係藉|丨|屯複進行上述一連φ之動作，可連續 進行管材W之定長切斷。該情形，旋轉驅動裝備4之驅動 川馬達27，係乜每··次之切斷+必停止，可經常旋轉著。1T Λ7 Β7 4 6 919 V. Expansion and contraction of invention description (). Therefore, when the cylindrical transmission 凼 26 is rotated by the gear mechanism 28 by the drive of the 凼 motor 27, the chuck I 8 is rotated by the short cylindrical member 38 and the end plate 39. At this time, if the chuck 18 is shrinking (close (Moving) state, the clamped pipe W is rotated by the chuck 18, and if the chuck 18 is in the expanded (open) state 1, the pipe W is opened by the chuck 18 and becomes inactive. Spin. Fig. 7 shows the fixed-length stopper 40 for cutting the pipe W to a fixed length, and Fig. 8 shows the pusher 41 of the pusher until the pipe W is advanced to the position of the fixed-length stopper 40. The fixed-length cymbal block 40 is composed of the frame 42 and the stopper body 44, and the stopper body 44 is a support rod 46 that can be telescopically adjusted in the pipe feeding direction by a handle 45, and in the rod 46 A front end portion is provided with a stopper 48 mounted on the free rotation through a bearing 47. In addition, the frame 42 ′ is supported on a slidable guide rail 51 provided on the mounting table 50 to be slidable, and is retracted to the forward position of the front end of the pipe W by the expansion and contraction of the fluid pressure cylinder 52 as shown by the solid line, and as As shown by the dotted line, the question of the evacuation position of the pipe W to the retreat of the road becomes the predetermined stroke S3. The pusher 41 of the propeller is mounted on the front end portion of the tube joint portion 54 for free rotation via a bearing 53, and the tube joint portion 54 is a rear end portion connected to the tube member W. Next, a method of cutting the pipe W will be described by using a cutting device having the above-mentioned configuration. First, according to the wall thickness T of the pipe W to be cut, the depth D of the V-shaped groove 55 formed by the circular saw blade 5 is used to advance and retract the stroke S 1 of the circular saw blade 5 and the back and forth of the circular plate cutter 7 Stroke S2 is set separately (refer to (1) and (2) in Figure 丨 0). The depth D of the V-shaped groove 55 is a range of about 10 to 60% of the wall thickness T of the pipe W. The forward and backward stroke S 1 of the circular saw blade 5 is through the hydraulic pressure of the cylinder 10, and the forward and backward stroke S2 of the circular plate cutter 7 is through the flow 10 wood paper standard applicable to China National Cotton Standard (CNS) Λ4 specification (21UX297 male (Fried) (Please read the notes on the back before filling in ft? This page) Order printed by the Women ’s Workers ’Consumer Cooperatives of the Ministry of Health ’s Central Bureau of Constriction of the Ministry of Health ¾ ^^ The Ministry of Central Standards Bureau ’s Workers’ Cooperatives ’Cooperative Association ’s chief director b 91 9 1 A7 ___B7 V. Description of the invention () Body pressure 1 5 is set separately. Further, as shown by the solid line in FIG. 7, the fixed-length stopper 40 is advanced by the baffle 48 and the pipe W in the fixed box 1 penetrating the cutting device to the opposite position, and the baffle 48 is positioned at The predetermined position is used to set the cutting length of the pipe W. However, after the pipe W is cut and installed, it is pushed by the pusher 41 of the aforementioned pusher, so that the pipe W is previously blocked by the baffle 48, and the pipe W is held and fixed by a chuck. The pipe W is rotated in the opposite direction with the circular saw blade 5 at a predetermined peripheral speed by the rotation drive equipment 4 at a predetermined circumferential speed of the pipe W (refer to FIG. 1). In this case, the peripheral speed of the pipe W is, for example, about 10 m / min, and the peripheral speed of the circular saw blade 5 is, for example, about 250 m / min. As described above, the side of the pipe W-·· is rotated around the shaft core, As shown in FIG. 10 (1), while the circular saw blade 5 is moved along the cutting position P of the pipe W, the stroke S1 is advanced and retracted to form a V-shaped groove 55 on the outer periphery of the pipe W, and the V-shaped groove 55 In the formation, as shown in (2) of the figure, the wall thickness portion Z 1 of Yu is cut by cutting the disc cutter 7 by advancing the stroke S2. In this case, the disc cutter 7 has its legs tightly attached to the rotating philosopher W and rotates following it. In this way, the cut end of the cut pipe W is shown in (3) of the same figure. In the future, by using | 丨 | to perform the above-mentioned continuous φ action, the fixed-length cutting of the pipe W can be continuously performed. In this case, the drive motor 27 of the rotary drive device 4 is stopped every time the + is stopped, and can be rotated frequently.
若依據木切斷方法，则利丨丨]圓鋸刀5在管材W之外周 面預先形成V字形溝55，藉由該V字形溝55之形成將剩 餘之壁厚部分Z，利用圓板切斷器7加以切斷，所以利用 圓板切斷器7在管材W之切斷時產生之切斷端部外周的 膨脹，係會被V字.形溝55所吸收，在管材W之端部外周 係完全不會出現（圖1 〇之（3)參考）。又’由於將管材W 本紙张尺度適用中國圉家標準（CNS ) Λ4規格（21ΠΧ2<ί7公筇） (锖先閱讀背16之注意事項再填转本頁) - *-° 46 9 A7 B7 經濟部中央標苹局貞工消资合作社印敦 五·、發明説明（） 旋轉於其軸芯周岡，所以與管材W之徑同徑或更小徑之 圓鋸刀5也成爲可使用，藉此將圓鋸刀5之成本可低廉， 又因爲可減短圓鋸刀5之移動衝程，可達成切斷時間之短 縮化。又，利用圓鋸刀5將V字形溝55後之剩餘壁厚部 分Z藉由圓板切斷器7加以切斷，所以在薄壁管材之情 形，也不會使管材變形。 前述V字形溝55之深度D，係做爲管材W之壁厚T 的1 0〜60 %程度可進行良好之切斷，但較佳係約20〜 5 0 %程度即可。又，將管材W之旋轉方向及圓鋸刀5之 旋轉方向藉由相互相反，對管材W之圓鋸刀5的最初切削 爲佳，不會產生振動或不穩可提高切斷精度。 上述之實施形態，係裝備2個圓板切斷器7，但該圓 板切斷器7以1個也可，以3個以上裝備也可。又，如本 實施形態將管材W以比較短切斷長度切斷時，係藉由切 斷不必用以把持被切赛饩材部分，但切斷長度爲長時，則 設置虎頭鉗用以把持該被切落饩材部分爲較佳。 "* *發明之效果μ * * 若依據有關申請專利範圍第1項發明之切斷方法，則 藉由V溝形成用圓鋸刀在管材之外周面預先形成V字形 溝，藉由該V字形溝之形成將剩餘之壁厚部分’使用圓板 切斷器加以切斷，所以使ffl圓板切斷器在管材之切斷時產 生切斷端部外周的膨脹，係會被V字形溝所吸收’在管材 之端部外周係完全不會出現，在切斷後不必除去該膨脹。 又，使管材旋轉於其軸芯周圖，所以與管材之徑同等或更 小徑之圓鋸刀也可使用，藉此可將圓鋸刀之成本降低’又 因爲可將圓鋸刀之移動衝程減短，所以可達成切斷時間之 短縮化。進而，藉由圓鋸刀將形成V字形溝後之剩餘壁厚 12 適用中阈國家標準（CNS >八4規格（2丨()乂297公) ^1- t^i ^^1 I 1^1 I 衣 - I - n (請先閱讀背面之注意事項再填寫本頁) A7 46 91 9 1 B7 五、發明説明（） (諳先閱讀背面之注意事項再填窍本頁) 部分使用圓板切斷器加以切斷，所以即使薄壁之管材或柔 軟之管材時也不會使該管材變形。進而又，將管材之外周 部藉山V溝形成用圓鋸刀加以切斷，所以使用車刀切斷時 使切粉變長不會引起纏繞於製品之現象，可使切粉紛分 化。 若依據申請專利範園第2項，則將管材之旋轉方向及 圓鋸刀旋轉方向藉由柑互相反，對管材之圓鋸刀的最初切 削爲良好，不會產生振動或不穩，可提高切斷精度。 若依據申請專利範圖第3項之切斷裝置，則因爲其構 成具備有：旋轉驅動裝備，使管材藉由卡盤加以固定並旋 轉於軸芯周圍；圓鋸裝備，具有旋轉驅動之V溝形成用圓 鋸刀，將該圓鋸刀對管材使預定衝程進退於垂直方向；及 切斷器裝備，與前述圓鋸刀在問隔於周方向之位置具有圓 板切斷器，將該切斷器對管材使預定衝程進退於垂直方 向：所以可有效實施有關申請專利範圍第1項及第2項之 切斷方法，同時構造簡單可廉價製作。 經沪部中央標隼局只工消舟合作社印製 若依據申請專利範園第4項，則譬如藉由流體壓汽缸 之伸長作動’通過搖動連桿機構將套管推拉構件移動到軸 方向後方’並將夾頭開關作動用套管拉到後方，藉此將卡 盤用夾頭加以開放，並用以解除管材之摑持固定，又由該 狀態，將流體壓汽缸藉由收縮作動，通過搖動連桿機構將 套管推拉構件移動到籼力向Μ方，並將夾頭開關作動用套 管推動到前方，而使該套管之錐形嵌合部按壓嵌合於夾頭 之錐形部，藉此將夾頭加以關動可用以摑持固定管材。 又，藉由驅動用馬達，通過齒輪機構藉由使筒狀傳動軸旋 轉，使夾頭旋轉’此時夾頭若在關動狀態，則藉由夾頭使 被摑持固定之管材旋轉，又夾頭若在開放狀態，則管材係 13 ^纸浓尺度適汛中固阀家榡準"TcNS ) Λ4规格（2丨(1Χ297·*^ ) A7 46 91 9 1 _ B7_ 五、發明説明（） 由夾頭所開放成爲可移動於軸方向之狀態<因此，使驅動 用馬達起動之狀態下，藉由流體壓汽缸之仲縮作動可隨時 進行卡盤之開關，將管材可連續加以切斷。 μ**圖式之簡單說明 第1圖係有關本發明切斷裝置之前視圖。 第2圖係同切斷裝置之縱剖側視圖。 第3圖係同切斷裝置中之圓鋸裝備的縱剖前視圖。 第4圖係同圓鋸裝備之重要部分放大縱剖側視圖。 第5圖係顯示同切斷裝置之後端部一部分剖面放大側視圖。 第6圖係顯示同切斷裝置之後端部一部分剖面放大後視圖。 第7圖係顯示同切斷裝置中之定長擋塊側視圖。 第8圖係顯示同切斷裝置中之推進器的推棒側視圖。 第9圖（A)係圓鋸刀之部分放大前視圖，（B)係其斜視 圖’（C)係圓鋸刀之版大剖面圖’（D)係圓板切斷器之放大 剖面圖。 第1 0圖（1)〜（3)係線丨示切斷製稈說明剖而圖。 -^^1 —^1 —^ϋ-- - 1^1 t ^ n In an I— HI 1^1 TJ 3"0 (婧先閱讀背面之注意事項再填寫本頁) 蛵漪部中央標準局負工消f合作社印^ 元件編號之説明〃 * * W.., ...管材 1... ...固定箱 3···. ....卡盤 4.... ...旋轉驅動裝備 5.... .._鋸刀 6.... …圓鋸裝備 7…·, …·圓板切斷器 8..... u切斷器裝備 18... ...夾頭 19... ·..夾頭開關作動用套管 21.. ....套管推拉構件 22.., 28..， ...搖動連桿機構 26... …齒輪機構 …筒狀傳動軸 27... ...驅動之馬達 __ 14 木纸张尺度適用中國國家標辛（C，NS ) Λ4ί兄格（2丨(}χ 297公兑）According to the wood cutting method, the circular saw blade 5 forms a V-shaped groove 55 on the outer surface of the pipe W in advance, and uses the formation of the V-shaped groove 55 to cut the remaining wall thickness Z with a circular plate. The breaker 7 is used for cutting. Therefore, the expansion of the outer periphery of the cutting end portion when the pipe W is cut by the circular plate cutter 7 is absorbed by the V-shaped groove 55 and is at the end of the pipe W. The peripheral system does not appear at all (refer to (3) in Figure 10). Also 'Because the paper size of the pipe is applicable to the Chinese Standard (CNS) Λ4 specification (21Π × 2 < ί7) 筇 (Please read the precautions of the back 16 before filling in this page)-*-° 46 9 A7 B7 Economy The Ministry of Standards and Standards Bureau of the People's Republic of China Industrial Cooperatives Co., Ltd. Indun V. Description of the invention () Rotates on its core Zhougang, so the circular saw blade 5 with the same diameter or smaller as the pipe W is also available. The cost of the circular saw blade 5 can be low, and the moving stroke of the circular saw blade 5 can be shortened, so that the cutting time can be shortened. Further, the remaining wall thickness portion Z after the V-shaped groove 55 is cut by the circular blade cutter 7 by the circular saw blade 5, so that the pipe is not deformed in the case of a thin-walled pipe. The depth D of the aforementioned V-shaped groove 55 is about 10 to 60% of the wall thickness T of the pipe W, and can be cut well, but it is preferably about 20 to 50%. In addition, since the rotation direction of the pipe W and the rotation direction of the circular saw blade 5 are opposite to each other, the initial cutting of the circular saw blade 5 of the tube W is preferably performed without vibration or instability, and the cutting accuracy can be improved. In the above-mentioned embodiment, two disc cutters 7 are provided. However, one disc cutter 7 may be provided, and three or more disc cutters 7 may be provided. In addition, if the pipe W is cut at a relatively short cutting length in this embodiment, it is not necessary to hold the cut piece of wood by cutting, but when the cutting length is long, a vise is provided for It is better to hold the cut-off piece of cypress. " * * Effect of the invention μ * * According to the cutting method of the first invention in the scope of the related patent application, a V-shaped groove is used to form a V-shaped groove on the outer peripheral surface of the pipe in advance. The formation of the zigzag groove cuts the remaining wall thickness using a circular plate cutter, so that the ffl circular plate cutter will expand the outer periphery of the cut end when the pipe is cut, which will be caused by a V-shaped groove. Absorbed 'does not appear at the outer periphery of the end of the pipe at all, and it is not necessary to remove the swelling after cutting. In addition, the pipe is rotated around its shaft core, so a circular saw with the same diameter or smaller as the diameter of the pipe can also be used. This can reduce the cost of the circular saw, and because it can move the circular saw. The stroke is shortened, so that the cut-off time can be shortened. Furthermore, the remaining wall thickness 12 after the V-shaped groove is formed by a circular saw blade applies a mid-threshold national standard (CNS > 8-4 specification (2 丨 () 乂 297)) ^ 1- t ^ i ^^ 1 I 1 ^ 1 I clothes-I-n (Please read the notes on the back before filling this page) A7 46 91 9 1 B7 V. Description of the invention () (谙 Read the notes on the back before filling this page) Part of the circle The plate cutter cuts it, so even if it is a thin-walled pipe or a soft pipe, the pipe will not be deformed. Furthermore, the outer periphery of the pipe is cut by a circular saw for forming a V groove, so it is used When the turning knife is cut, making the cutting powder longer will not cause the phenomenon of entanglement in the product, which can cause the cutting powder to be differentiated. According to the second item of the patent application park, the rotation direction of the pipe and the rotation direction of the circular saw blade are The cutting of the circular saw blade of the pipe is good, without vibration or instability, and it can improve the cutting accuracy. If the cutting device according to item 3 of the patent application model is used, its structure has : Rotary drive equipment, the pipe is fixed by the chuck and rotated around the shaft core; circular saw Equipped with a circular saw blade for forming a V-groove for rotary driving, which advances and retracts the circular saw blade to the pipe in a vertical direction; and a cutter device, which has a circular shape with the circular saw blade at a position spaced from the circumferential direction. Plate cutter, which advances and retreats the pipe to the pipe in a vertical direction: Therefore, it can effectively implement the cutting methods of the first and second scope of the patent application. At the same time, the structure is simple and inexpensive. Printed by the Central Bureau of Standards and Technology Co., Ltd., if it is in accordance with item 4 of the patent application park, for example, the extension of the hydraulic cylinder will be used to move the sleeve push-pull member to the rear of the shaft through the rocking link mechanism and will The collet switch actuating sleeve is pulled to the rear, thereby opening the chuck collet to release the holding of the pipe, and from this state, the fluid pressure cylinder is actuated by contraction, and the link mechanism is rocked. The sleeve push-pull member is moved to the M direction, and the sleeve for the collet switch operation is pushed forward, so that the tapered fitting portion of the sleeve is press-fitted to the tapered portion of the collet. Chuck The closing can be used to hold the fixed pipe. In addition, the driving motor and the gear mechanism rotate the cylindrical transmission shaft to rotate the chuck. At this time, if the chuck is in the closed state, the chuck is used. If the clamped and fixed pipe is rotated, and if the chuck is in the open state, the pipe system is 13 ^ paper thick scale suitable for flood control in the flood season. &Quot; TcNS) Λ4 specification (2 丨 (1 × 297 · * ^) A7 46 91 9 1 _ B7_ V. Description of the invention () The state opened by the chuck to move in the axial direction < therefore, when the driving motor is started, the card can be stuck at any time by the secondary contraction of the fluid pressure cylinder The switch of the disc can cut the pipe continuously. Μ ** Brief description of the drawing Figure 1 is a front view of the cutting device of the present invention. Fig. 2 is a longitudinal sectional side view of the same cutting device. Fig. 3 is a longitudinal sectional front view of the circular saw equipment in the same cutting device. Fig. 4 is an enlarged longitudinal sectional side view of an important part of the same circular saw equipment. Fig. 5 is an enlarged side view showing a cross section of a rear end portion of the same cutting device. Fig. 6 is an enlarged rear view showing a section of the rear end portion of the same cutting device. Figure 7 shows a side view of a fixed-length stop in the same cutting device. Fig. 8 is a side view showing the push rod of the thruster in the same cutting device. Fig. 9 (A) is an enlarged front view of a circular saw blade, (B) is a perspective view thereof, (C) is a large sectional view of a circular saw blade, and (D) is an enlarged sectional view of a circular plate cutter. . Figures 10 (1) to (3) are line diagrams illustrating cut-off stalks. -^^ 1 — ^ 1 — ^ ϋ---1 ^ 1 t ^ n In an I— HI 1 ^ 1 TJ 3 " 0 (Jing first read the notes on the back before filling this page) Central Bureau of Standards, Ministry of Education Negative labor consumption f Cooperative society ^ Explanation of component number 〃 * * W .., ... pipe 1 ... ... fixing box 3 ......... chuck 4 .... ... Rotary drive equipment 5 .... .._ Saw blade 6 ....… Circular saw equipment 7… ·,… · Circular plate cutter 8 ..... u cutter equipment 18 ... Chuck 19 ... ·. Sleeve for actuating the chuck switch 21 ..... Sleeve push-pull member 22 .., 28 .., ... Swing link mechanism 26 ...… Gear mechanism … Cylinder drive shaft 27 ... Motor for driving __ 14 The paper size is applicable to Chinese national standard Xin (C, NS) Λ4ί 哥格 (2 丨 (} χ 297)