1295234 · 九、發明說明： 【發明所屬之技術領域】 本發明乃有關於藉由自一記錄紙張捲 一記錄紙張的前端分離’用於饋送記錄紙 備。 【先前技術】 傳統上，習知的紙張饋送設備乃藉由 經由一紙張饋送部，將記錄紙張供應至一 捲筒係由捲繞連續記錄紙張而成爲捲筒形 張饋送設備具有一端部分離器’其接觸紙 面，以自紙張捲筒分離記錄紙張的前端。 公開案第11-011750號的一端部分離器， 置（如彈簧圈或類似者）而偏向紙張捲筒， 的尖端接觸紙張捲筒的外圍表面。在此狀 筒旋轉時，其前端被端部分離器的尖端輕 張捲筒分離。被分離的紙張捲筒的前端藉 向紙張饋送部。 然而當紙張捲筒的直徑減少時，前述 張捲筒的下壓力量便減少。因此端部分離 減少。此外，當紙張捲筒的直徑大時’端 好的分離性能。然而在印刷過程中端部分 離相同的下壓力量繼續壓著紙張捲筒。結 受到過度的下壓力量而可能造成記錄紙張 發生例如印刷條痕的印刷失敗。 筒之外圍表面將 張的紙張饋送設 旋轉一紙張捲筒 印刷部，此紙張 式。此類型的紙 張捲筒的外圍表 揭露於日本專利 乃藉由一偏移裝一 使得端部分離器 態中，當紙張捲 微地抬起並自紙 由一導引部被導 端部分離器對紙 器的分離性能便 部分離器具有良 離器以與端部分 果紙張捲筒可能 的損傷，或可能 1295234 · 【發明內容】 本發明之一目的乃提供一紙張饋送設備， 筒的捲筒直徑，均具有穩定的分離性能。 本發明之另一目的乃提供一紙張饋送設備 記錄紙張上的損傷及印刷失敗。 爲了達成本發明之上述及其他目的，此紙 包含一端部分離部能接觸紙張捲筒之一外圍表 部用於固持端部分離部、以及一偏移部用於偏 • 部。 端部分離部自紙張捲筒的外圍表面將記錄 分離。固持部根據紙張捲筒的一外圍直徑而移 分離部與外圍表面接觸。偏移部以一接近固定 使端部分離部與外圍表面接觸。 端部分離部爲一分離平板，其端部爲楔形 含一固持臂用於固持住分離平板，以及一支持 轉地支持固持臂。固持臂可在一接觸位置（其中 Φ —接近固定的角度接觸外圍表面）及一縮回位] 平板自紙張捲筒縮回）之間移動。偏移部包含一 支持軸。彈簧圈具有一連接至固持臂的第一端 移動的第二端部。固持臂的旋轉量及分離平板 乃藉由第二端部的位置而調整。偏移部包含一 固定至支持軸、以及一馬達用於旋轉支持軸。 二端部與彈簧鉤元件卡合。根據總饋送量，馬 控制’且彈簧圈的彈力被調整。 在本發明的一實施例中，包含一靜止的彈 無論紙張捲 ，其可防止 張饋送設備 面、一固持 移端部分離 紙張的前端 動，使端部 的下壓力量 。固持部包 軸，其可旋 分離平板以 置（其中分離 彈簧圈環繞 部，以及可 的下壓力量 彈簧鉤元件 彈簧圈的第 達的旋轉被 簧鉤元件。 1295234 在此靜止的彈簧鉤元件中，形成有複數個卡合槽用於調整 彈簧圈的彈力。彈簧圈的第二端部安裝至這些卡合槽之一。 在本發明的另一實施例中，一固持部可在一接觸位置 (其中分離平板以一接近固定的角度接觸外圍表面）及一縮 回位置（其中分離平板自紙張捲筒縮回）之間直線移動。一 偏移部包含一彈簧圈。此彈簧圈具有一連接至固持位置的 第一端部，以及一可直線移動的第二端部。固持部的位置 及分離平板的下壓力量乃根據彈簧圈之第二端部的位置而 ^ 調整。 前述本發明之目的及優點，將由閱讀以下本發明較佳 實施例的詳細描述並配合所附圖式而更爲顯著。 【實施方式】 如第1及· 2圖所示，一紙張饋送設備（紙張饋送部）11、 一印刷部1 2根據印刷資料而執行印刷操作、一印刷控制器 1 3用於控制紙張饋送部1 1及印刷部1 2、一印刷資料儲存 器1 4用於自複數個終端機P C 1至P C 3儲存印刷資料、以 φ 及類似物被配置於一印刷機1 0中。紙張饋送部Π具有一 紙張承載室，一紙張捲筒單元1 7可移除地承載於其中。紙 張捲筒單元1 7藉由捲繞連續記錄紙張2 3而成爲捲筒形 式。印刷控制器1 3藉由將儲存在印刷資料儲存器1 4的印 刷資料輸入至印刷部1 2，並自紙張饋送部1 1將記錄紙張 2 3供應至印刷部1 2而執行印刷。此時，馬達1 8及1 9的 驅動乃藉由印刷控制器1 3經由一驅動器（未顯示）而控制。 紙張捲筒單元1 7包含一紙張捲筒2 0及一對捲筒固持 器2 1。紙張捲筒2 0乃藉由將連續記錄紙張2 3捲繞在例如 1295234 直徑60mm的中空圓柱核心22四周而形成。當紙張捲筒20 爲新的時候，紙張捲筒2 0的直徑爲1 5 0 m m。此一對捲筒固 持器.2 1連接至核心2 2的二端，使此一對捲筒固持器2 1握 持住紙張捲筒2 0，並隨核心2 2旋轉。一對軸2 4突出此一 對捲筒固持器2 1外側。此一對軸2 4可旋轉地與一對軸承 2 5卡合，軸承固定在紙張承載室的內壁。軸2 4之一者經 由一傳動機構連接至馬達1 8。當捲筒固持器2 1藉由馬達 1 8旋轉，紙張捲筒20以順時針方向旋轉。 在紙張捲筒單元1 7的外圍四周以及紙張饋送至印刷 部1 2之通道的兩側，配置有導引平板2 6用於導引記錄紙 張2 3自紙張捲筒2 0分離。在紙張饋送通道之一部分，配 置了一端部分離機構27之一分離平板28。 端部分離機構27由此分離平板28、一固持臂29、一 支持軸3 0、一齒輪3 1、一彈簧鉤元件3 2、一彈簧圈3 3及 類似物所組成。在饋送記錄紙張2 3前，端部分離機構2 7 藉由使分離平板2 8與紙張捲筒2 0的外圍表面接觸，而自 紙張捲筒20的外圍表面將記錄紙張23的前端分離。彈簧 鉤元件3 2固定至支持軸3 0。 分離平板2 8及固持臂2 9經由一固定桿3 5而連接以彎 曲成L形。在此構形下，即使當紙張捲筒2 0的捲筒直徑改 變，分離平板2 8的尖端2 8 a能夠以大約固定的角度接觸紙 張捲筒2 0的外圍表面。分離平板2 8的寬度對應至記錄紙 張2 3的寛度。分離平板2 8的尖端2 8 a形成楔形。尖端2 8 a 的厚度比記錄紙張2 3的厚度還薄。注意分離平板2 8的寬 度可比記錄紙張2 3的還短。此外’具有大約記錄紙張2 3 .1295234 一半寬度的分離平板2 8可配置於紙張捲筒2 0的一側以與 紙張捲筒2 0接觸。 於固持臂29中，在固定桿35的相反端（連接端）設有 —軸孔2 9 a。經由軸孔2 9 a ’支持軸3 0可旋轉地被插入。 一齒輪3 1被固定至支持軸3 0。在固持臂2 9的中央部分， 提供有一卡合槽29b。彈簧圈33之一端部33b卡合至卡合 槽 2 9b。 齒輪3 1藉由馬達1 9而旋轉。隨著齒輪3 1的旋轉，彈 •簧鉤元件3 2與支持軸3 0 —起旋轉。彈簧鉤元件3 2藉由一 螺絲34固定至支持軸30。一溝槽32a形成於彈簧鉤元件 32。彈簧圈33的另一端部33a鉤至溝槽32a。 如上述，彈簧圈3 3之端部3 3 b卡合至可旋轉的固持臂 2 9。彈簧圈3 3的另一端部3 3 a鉤至彈簧鉤元件3 2。彈簧 圈3 3之環圈部3 3 c環繞支持軸3 0。結果，分離平板2 8藉 由彈簧圈3 3的彈力，經由固持臂2 9以一預定下壓力量偏 向紙張捲筒2 0。 φ 記錄紙張捲筒2 0使用時會改變直徑。在本發明中，彈 簧圈3 3的端部3 3 a的位置藉由以齒輪3 1旋轉彈簧鉤元件 32而調整。藉此，分離平板28在一接觸位置（見第1及3A 圖，其中尖端28a接觸紙張捲筒20的外圍表面）及一縮回 位置（見第3 B圖）之間移動。即使紙張捲筒2 0的直徑改變 時，分離平板2 8的尖端2 8 a將以一預定下壓力量接觸紙張 捲筒20的外圍表面。 端部分離機構2 7的功能將詳細描述。如第3 A圖所示， 當齒輪3 1以逆時針方向旋轉’例如θ 1時，彈簧鉤元件3 2 1295234 與上述旋轉一致，以逆時針方向繞支持軸3 0旋轉θ 1。此 時，彈簧圈3 3的端部3 3 a向上移動，使得分離平板2 8及 固持臂2 9藉由彈簧圈3 3的彈力而移向紙張捲筒2 0，且尖 端2 8a與紙張捲筒20的外圍表面接觸（接觸位置）。在接觸 位置中，分離平板2 8以固定下壓力量壓住此外圍表面。如 第3 B圖所示，當齒輪3 1以順時針方向旋轉Θ 2時（θ 1 > Θ 2 )， 端部3 3 a向下移動。因此彈簧圈3 3的彈力減少，使得分離 平板28移至縮回位置，其中分離平板28自紙張捲筒20縮 φ 回。尖端2 8 a以一垂直距離L 1自此外圍表面移開。 因此，彈簧圈33的下壓力量藉由調整彈簧圈33之端 部3 3 a的位置而改變，使得分離平板2 8的尖端2 8 a以固定 下壓力量壓住紙張捲筒20的外圍表面。結果，無論紙張捲 筒2 0直徑的大小，分離性能變得穩定。 彈簧圈3 3的端部3 3 a的位置調整方法將被解釋。在印 刷控制器1 3中，提供一計數器1 5用於計算印刷的次數。 計數器1 5計算印刷的次數，亦即更換紙張捲筒2 0後，印 φ 刷指令信號輸入至印刷部1 2的次數。由於印刷尺寸是固定 的，印刷控制器1 3根據此計數値而計算記錄紙張2 3的總 饋送量（欲使用量），並根據總饋送量產生馬達1 9的驅動脈 衝。然後，印刷控制器1 3將此驅動脈衝輸入至一驅動器（未 顯示），並以很高的精確度控制馬達1 9。藉此控制，彈簧鉤 元件3 2於一預定方向旋轉一預定角度，以調整彈簧圈3 3 之端部3 3 a的位置。 參照第4圖，自紙張捲筒2 0將記錄紙張2 3前端分離 的過程將被描述。當紙張捲筒2 0以紙端連接至紙張捲筒 -10- 1295234 2 0之外圍表面的狀態旋轉時.，分離平板2 8的尖端 先接觸此紙端。然後’當紙張捲筒2 〇進一步旋轉時 捲筒2 0的最外表面被鬆開，且紙張的前端被抬起至 板2 8的上表面（虛線所示狀態）。因此，記錄紙張前 張捲筒2 0的外圍表面被分離，並供應至印刷部1 2。 接下來，將描述上述裝配的操作。在印刷前， 料自P C s 1 - 3中任一者輸入至印刷資料儲存器1 4並 來。 φ 當印刷操作被指示時，印刷控制器1 3根據計數 的印刷次數計數値而計算記錄紙張2 3的總饋送量， 總饋送量驅動馬達1 9。齒輪3 1藉由此馬達以逆時 旋轉對應於此計數値的角度。藉此，彈簧圈3 3的端 向上移動，且分離平板28的尖端28a移至接觸位置 尖端2 8 a接觸紙張捲筒2 0的外圍表面。此時，紙 2 0的外圍表面被尖端2 8 a以固定的下壓力量壓住。 當紙張捲筒2 0藉由馬達1 8而順時針旋轉時，紙端 φ 並自外圍表面分離。被分離的紙端沿著分離平板2 8 並經由一紙張饋送部1 1 a供應至印刷部1 2。 紙端分離後，分離平板2 8自接觸位置移至縮回 特別地’當馬達1 9被印刷控制器1 3驅動而以順時 旋轉齒輪3 1時，彈簧圈3 3的端部3 3 a向下移動， 平板2 8移至縮回位置。因此，紙張捲筒2 0以分離： 的尖端2 8 a自外圍表面縮回的狀態而旋轉。在此狀 記錄紙張2 3連續饋送至印刷機1 〇，且印刷操作被| 在上述實施例中，彈簧圈3 3做爲偏向工具。然 28a首 ，紙張 分離平 端自紙 印刷資 儲存起 器顯示 並根據 針方向 部3 3a ，其中 張捲筒 之後， 被抬起 移動， 位置。 針方向 且分離 甲板28 態中， 冬動。 而，偏 -11- I · 1295234 向工具並不限於彈簧圈。彈簧板或其他具有類似彈簧性質 的彈性材料亦可被使用。 在上述實施例中，總饋送量乃由印刷次數的計數値而 計算。紙張捲筒20的直徑便根據此總饋送量而計算。馬達 1 9乃根據此計算的捲筒直徑而控制。注意可藉由使用具有 光學感測器的距離測量裝置取代此計算，而測量捲筒直徑。 在上述實施例中，彈簧圈3 3的端部3 3 a乃藉由馬達 1 9經由齒輪3 1而移動。然而，端部3 3 a可手動地移動。 φ 例如如第5圖所示，一類似扇形的彈簧鉤元件4 5固定於一 被固定而不旋轉的支持軸44。在彈簧鉤元件4 5中，複數 個卡合槽4 5 a以固定間隔形成於圓周方向。根據紙張捲筒 使用量，彈簧圈4 6之一端部4 6 a的位置藉由連續變換端部 46a在複數卡合槽45a內的位置，而逐步改變。 在第6圖所示的實施例中，一端部分離機構5 1由一分 離平板5 2、一固持塊5 5用於固持住分離平板5 2、一彈簧 圈5 3用於經由固持塊5 5以一接近固定的下壓力量將分離 $平板52偏向紙張捲筒20、以及一在上下方向移動的變換 機構5 4所構成。分離平板5 2藉由變換機構5 4經由彈簧圈 5 3而在上下方向直線移動。藉此，分離平板5 2在一接觸 位置（其中尖端52a接觸紙張捲筒20的外圍表面）及一縮回 位置（其中尖端52a自外圍表面縮回）之間移動。 雖然本發明已藉由其較佳實施例並參照所附圖示而完 全地描述，對熟習該項技術者而言，明顯的有各式變化及 壽 範 的 明 發 本 了 離 脫 飾。 修中 及明 化發 變本 些在 這含 非包 除爲 , 釋 此解 因應 。 均 目〈 修否 -12- 1295234 【圖式簡單說明】 第1圖爲一說明圖’顯示包含本發明之紙張饋、送設備 之一印刷機； 第2圖爲一側視圖，顯示端部分離機構； 第3A圖爲一前視圖，顯不一分離平板接觸具有小捲筒 直徑的紙張捲筒，且第3 B圖爲一前視圖’顯不此分離平板 自具有大捲筒直徑的紙張捲同縮回， 第4圖爲一説；明圖，顯示紙張前端自紙張捲筒分離； φ 第5圖爲一前視圖，顯示一實施例，其中分離平板的 下壓力量可調整；且 第6圖爲一說明圖’顯示端部分離機構的另一實施例。 【主要元件符號說明】 PC 1 〜3 終 端 機 10 印 刷 機 11 紙 張 饋 送 部 Ha 紙 張 饋 送 部 12 印 刷部 13 印 刷 控 制 器 14 印 刷 資 料 儲 存器 15 計 數 器 17 紙 張 捲 筒 單 元 1 8，1 9 馬 達 20 紙 張 捲 筒 21 捲 筒 固 持 器 22 核 心 -13- 12952341295234. IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to the use of feeding a recording paper by separating a front end of a recording sheet from a recording sheet. [Prior Art] Conventionally, a conventional paper feeding device has a one-end separator by feeding a recording paper to a reel via a sheet feeding portion and winding the continuous recording sheet into a roll-shaped sheet feeding device. 'It touches the paper surface to separate the leading end of the recording paper from the paper roll. The one end splitter of the publication No. 11-011750, such as a spring coil or the like, is biased toward the paper roll, and the tip end contacts the peripheral surface of the paper roll. As the barrel rotates, its front end is separated by the tip of the end separator. The leading end of the separated paper roll is borrowed from the paper feed portion. However, when the diameter of the paper roll is reduced, the amount of downward pressure of the aforementioned roll is reduced. Therefore, the end separation is reduced. In addition, when the diameter of the paper roll is large, the end separation performance is good. However, during the printing process, the end portion is pressed against the paper roll by the same amount of downward pressure. The knot is subjected to an excessive amount of downforce and may cause printing failure of the recording sheet such as a printed streak. The peripheral surface of the cylinder feeds the sheet of paper into a paper roll printing section, this paper type. The peripheral table of this type of paper roll is disclosed in Japanese Patent No. 1 by an offset assembly in the end separator state, when the paper roll is slightly lifted and separated from the paper by a guide portion. Separating performance of the paper separator The toilet separator has a good separator to possibly damage the end paper pulp, or may be 1295234. [Invention] It is an object of the present invention to provide a paper feeding device, a drum diameter of the cylinder , all have stable separation performance. Another object of the present invention is to provide a paper feeding device for recording damage on paper and printing failure. In order to achieve the above and other objects of the present invention, the paper comprises an end portion separating portion capable of contacting a peripheral portion of the paper roll for holding the end portion separation portion, and an offset portion for the partial portion. The end separation portion separates the recording from the peripheral surface of the paper roll. The retaining portion moves the separation portion into contact with the peripheral surface in accordance with a peripheral diameter of the paper roll. The offset portion is brought into contact with the peripheral surface with a near fix. The end separating portion is a separating plate having a wedge-shaped end portion, a holding arm for holding the separating plate, and a supporting ground supporting arm. The retaining arm is movable between a contact position (where Φ - approaching the peripheral surface near a fixed angle) and a retracted position (the plate is retracted from the paper roll). The offset contains a support axis. The coil has a second end that is coupled to the first end of the retaining arm for movement. The amount of rotation of the holding arm and the separation plate are adjusted by the position of the second end. The offset portion includes a fixed to the support shaft and a motor for rotating the support shaft. The two ends are engaged with the spring hook elements. According to the total feed amount, the horse controls 'and the spring force of the coil is adjusted. In one embodiment of the present invention, a stationary cartridge is included, which prevents the sheet feeding device face and the holding end from separating the front end of the sheet, and the amount of depression of the end portion. The retaining portion encloses a shaft which is rotatably disengageable for positioning (where the spring ring surround portion is separated, and the lower rotation amount of the spring hook element spring ring is rotated by the reed member. 1295234 in the stationary spring hook element Forming a plurality of engaging grooves for adjusting the elastic force of the spring ring. The second end of the spring ring is mounted to one of the engaging grooves. In another embodiment of the present invention, a holding portion is at a contact position (where the separating plate contacts the peripheral surface at a nearly fixed angle) and a retracted position (where the separating plate is retracted from the paper roll). An offset portion includes a spring ring. The spring ring has a connection a first end portion to the holding position and a second end portion linearly movable. The position of the holding portion and the amount of downward pressure of the separating plate are adjusted according to the position of the second end portion of the spring ring. The objects and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the invention. FIG. 1 and FIG. A paper feeding unit 11 and a printing unit 1 2 perform a printing operation according to the printing material, a printing controller 13 for controlling the paper feeding unit 1 1 and the printing unit 1 2, and a printing data storage unit 1 4 for The plurality of terminals PC 1 to PC 3 store print data, and are disposed in a printer 10 in φ and the like. The paper feed unit Π has a paper carrying chamber, and a paper roll unit 17 is removably The paper roll unit 1 is in the form of a roll by winding the continuous recording paper 23. The printing controller 13 inputs the printed material stored in the printed data storage unit 14 to the printing unit 1 2 And printing is performed by supplying the recording paper 2 3 to the printing unit 12 from the paper feeding unit 11. At this time, the driving of the motors 18 and 19 is performed by the printing controller 13 via a driver (not shown). The paper roll unit 17 includes a paper roll 20 and a pair of roll holders 2 1. The paper roll 20 is wound by a continuous recording paper 2 3 in a hollow cylindrical core of, for example, 1295234 diameter 60 mm. Formed around 22 weeks. When the paper roll 20 is new The diameter of the paper reel 20 is 150 mm. The pair of reel holders .2 1 are connected to the two ends of the core 2 2 so that the pair of reel holders 2 1 hold the paper reel 2 0, and rotates with the core 22. The pair of shafts 2 4 protrude from the outside of the pair of reel holders 2. The pair of shafts 24 are rotatably engaged with a pair of bearings 25, and the bearings are fixed to the paper carrying chamber The inner wall of the shaft 2 is connected to the motor 18 via a transmission mechanism. When the reel holder 2 1 is rotated by the motor 18, the paper reel 20 is rotated in the clockwise direction. Around the periphery of the periphery of the substrate 7 and on both sides of the passage of the paper fed to the printing portion 12, a guide plate 26 is disposed for guiding the separation of the recording paper 2 from the paper roll 20. In one of the sheet feeding passages, one of the one end separating mechanisms 27 is disposed to separate the flat plate 28. The end separating mechanism 27 is thus composed of a separating plate 28, a holding arm 29, a support shaft 30, a gear 3 1 , a spring hook member 3 2, a coil 3 3 and the like. Before the recording sheet 2 3 is fed, the end separating mechanism 27 separates the leading end of the recording sheet 23 from the peripheral surface of the sheet reel 20 by bringing the separation flat plate 28 into contact with the peripheral surface of the sheet reel 20. The spring hook element 3 2 is fixed to the support shaft 30. The separating plate 28 and the holding arm 29 are connected by a fixing rod 35 to be bent into an L shape. In this configuration, even when the diameter of the roll of the paper roll 20 is changed, the tip end 28 8 of the separation flat plate 28 can contact the peripheral surface of the paper roll 20 at a fixed angle. The width of the separation plate 28 corresponds to the twist of the recording paper 23. The tip end 28 8 of the separation plate 28 forms a wedge shape. The thickness of the tip end 28 8 is thinner than the thickness of the recording sheet 23. Note that the width of the separation plate 28 can be shorter than that of the recording paper 23. Further, a separation plate 28 having a width of about half of the recording paper 2 3 .1295234 may be disposed on one side of the paper roll 20 to be in contact with the paper roll 20. In the holding arm 29, a shaft hole 2 9 a is provided at the opposite end (connection end) of the fixing rod 35. The support shaft 30 is rotatably inserted via the shaft hole 2 9 a '. A gear 3 1 is fixed to the support shaft 30. In the central portion of the holding arm 29, an engaging groove 29b is provided. One end portion 33b of the coil 33 is engaged with the engaging groove 29b. The gear 3 1 is rotated by the motor 19. As the gear 3 1 rotates, the spring hook element 3 2 rotates together with the support shaft 30. The spring hook member 3 2 is fixed to the support shaft 30 by a screw 34. A groove 32a is formed in the spring hook member 32. The other end portion 33a of the coil 33 is hooked to the groove 32a. As described above, the end portion 3 3 b of the coil 3 3 is engaged to the rotatable holding arm 209. The other end 3 3 a of the coil 3 3 is hooked to the spring hook element 3 2 . The ring portion 3 3 c of the spring ring 3 3 surrounds the support shaft 30. As a result, the separation plate 28 is biased toward the paper roll 20 by a predetermined downward pressure amount via the holding arm 29 by the elastic force of the spring ring 33. φ Recording paper roll 20 will change the diameter when used. In the present invention, the position of the end portion 3 3 a of the spring ring 3 3 is adjusted by rotating the spring hook member 32 with the gear 3 1 . Thereby, the separating plate 28 is moved between a contact position (see Figs. 1 and 3A in which the tip end 28a contacts the peripheral surface of the sheet reel 20) and a retracted position (see Fig. 3B). Even if the diameter of the paper roll 20 is changed, the tip end 28 8 of the separating plate 28 will contact the peripheral surface of the paper roll 20 with a predetermined amount of downward pressure. The function of the end separating mechanism 27 will be described in detail. As shown in Fig. 3A, when the gear 3 1 is rotated counterclockwise 'for example, θ 1 , the spring hook member 3 2 1295234 coincides with the above rotation, and rotates θ 1 around the support shaft 30 in the counterclockwise direction. At this time, the end portion 3 3 a of the coil 3 3 moves upward, so that the separating plate 28 and the holding arm 29 are moved toward the paper roll 20 by the elastic force of the spring ring 3, and the tip end 28 8a and the paper roll The peripheral surface of the can 20 is in contact (contact position). In the contact position, the separating plate 28 presses the peripheral surface with a fixed amount of downward pressure. As shown in Fig. 3B, when the gear 3 1 is rotated by Θ 2 in the clockwise direction (θ 1 > Θ 2 ), the end portion 3 3 a moves downward. Therefore, the spring force of the coil 3 3 is reduced, so that the separation plate 28 is moved to the retracted position, in which the separation plate 28 is retracted from the paper roll 20. The tip end 28 8 a is removed from the peripheral surface by a vertical distance L 1 . Therefore, the amount of depression of the coil 33 is changed by adjusting the position of the end portion 3 3 a of the coil 33, so that the tip end 28 a of the separation plate 28 is pressed against the peripheral surface of the sheet reel 20 with a fixed amount of depression. . As a result, the separation performance becomes stable irrespective of the diameter of the paper roll 20. The position adjustment method of the end portion 3 3 a of the coil 3 3 will be explained. In the printing controller 13, a counter 15 is provided for counting the number of times of printing. The counter 15 counts the number of times of printing, that is, the number of times the φ brush command signal is input to the printing unit 12 after the paper roll 20 is replaced. Since the printing size is fixed, the printing controller 13 calculates the total feeding amount (the amount to be used) of the recording paper 2 3 based on this counting ,, and generates the driving pulse of the motor 19 based on the total feeding amount. Then, the printing controller 13 inputs the drive pulse to a driver (not shown) and controls the motor 19 with a high degree of precision. By this control, the spring hook member 32 is rotated by a predetermined angle in a predetermined direction to adjust the position of the end portion 3 3 a of the coil 3 3 . Referring to Fig. 4, the process of separating the leading end of the recording sheet 2 3 from the sheet reel 20 will be described. When the paper roll 20 is rotated in a state where the paper end is connected to the peripheral surface of the paper roll -10- 1295234 2 0, the tip end of the separation flat plate 28 first contacts the paper end. Then, when the paper roll 2 is further rotated, the outermost surface of the roll 20 is loosened, and the leading end of the paper is lifted up to the upper surface of the plate 28 (the state shown by the broken line). Therefore, the peripheral surface of the recording sheet preceding roll 20 is separated and supplied to the printing portion 12. Next, the operation of the above assembly will be described. Before printing, the material is input from any of P C s 1 - 3 to the print data storage unit 14 . φ When the printing operation is instructed, the printing controller 13 calculates the total feeding amount of the recording paper 23 based on the counted number of printing times ,, and the total feeding amount drives the motor 19. The gear 3 1 is rotated by the motor in this manner to counterclockwise the angle corresponding to this count 値. Thereby, the end of the coil 3 3 is moved upward, and the tip end 28a of the separating plate 28 is moved to the contact position. The tip end 28 8 a contacts the peripheral surface of the sheet reel 20. At this time, the peripheral surface of the paper 20 is pressed by the tip end 28 a with a fixed amount of depression. When the paper roll 20 is rotated clockwise by the motor 18, the paper end φ is separated from the peripheral surface. The separated paper ends are supplied to the printing portion 12 along the separation plate 28 and via a sheet feeding portion 1 1 a. After the separation of the paper ends, the separation plate 28 is moved from the contact position to the retraction. In particular, when the motor 19 is driven by the printing controller 13 to rotate the gear 3 1 clockwise, the end 3 3 a of the spring ring 3 3 Move down and the plate 2 8 moves to the retracted position. Therefore, the paper roll 20 is rotated in a state where the tip end 28 8 of the separation: is retracted from the peripheral surface. In this case, the recording paper 2 3 is continuously fed to the printer 1 〇, and the printing operation is | In the above embodiment, the coil 3 3 is used as a biasing tool. However, at the beginning of 28a, the paper separation flat end is displayed from the paper printing storage device and is moved up and moved according to the needle direction portion 3 3a , after which the roll is rolled. The direction of the needle and the separation of the deck 28 state, winter movement. However, the -11-I · 1295234 tool is not limited to the coil. Spring plates or other resilient materials with similar spring properties can also be used. In the above embodiment, the total feed amount is calculated from the count 値 of the number of prints. The diameter of the paper roll 20 is calculated based on this total feed amount. The motor 1 9 is controlled based on the calculated diameter of the reel. Note that the reel diameter can be measured by replacing this calculation with a distance measuring device having an optical sensor. In the above embodiment, the end portion 3 3 a of the coil 3 3 is moved by the motor 19 via the gear 31. However, the end portion 3 3 a can be manually moved. φ For example, as shown in Fig. 5, a fan-like spring hook member 45 is fixed to a support shaft 44 that is fixed and not rotated. In the spring hook member 45, a plurality of engaging grooves 45a are formed at a fixed interval in the circumferential direction. Depending on the amount of paper roll used, the position of one end portion 4 6 a of the spring ring 46 is gradually changed by continuously changing the position of the end portion 46a in the plurality of engaging grooves 45a. In the embodiment shown in Fig. 6, the one end separating mechanism 51 is composed of a separating plate 5, a holding block 55 for holding the separating plate 5, and a spring ring 5 3 for holding the block 5 5 The separation plate 54 is biased toward the paper roll 20 and a shifting mechanism 54 that moves in the up and down direction at a nearly constant downward pressure. The separation plate 5 2 is linearly moved in the vertical direction by the change mechanism 5 4 via the coil 5 3 . Thereby, the separating plate 52 moves between a contact position in which the tip end 52a contacts the peripheral surface of the paper roll 20 and a retracted position in which the tip end 52a is retracted from the peripheral surface. Although the present invention has been fully described by the preferred embodiments thereof and with reference to the accompanying drawings, it is obvious that those skilled in the art have a variety of variations and longevity. The revision and the manifestation of the change in this are not included in this, and the solution is explained.均否-12- 1295234 [Simplified description of the drawings] Fig. 1 is an explanatory view showing a printing machine including one of the paper feeding and conveying devices of the present invention; Fig. 2 is a side view showing the separation of the ends Figure 3A is a front view showing that the separation plate contacts the paper roll having the small reel diameter, and Figure 3B is a front view 'not showing the separation plate from the paper roll having the large reel diameter With the retraction, Fig. 4 is a view; the plain figure shows that the leading end of the paper is separated from the paper roll; φ Fig. 5 is a front view showing an embodiment in which the amount of downward pressure of the separating plate can be adjusted; and Fig. 6 Another embodiment of the display end separation mechanism is illustrated. [Description of main component symbols] PC 1 to 3 Terminal 10 Printing machine 11 Paper feeding section Ha Paper feeding section 12 Printing section 13 Printing controller 14 Printed data storage 15 Counter 17 Paper reel unit 1, 8, 9 Motor 20 Paper Reel 21 Reel Holder 22 Core-13- 1295234
23 記錄紙張 24 軸 25 軸承 26 導引平板 27 端部分離機構 28 分離平板 28a 尖端 29 固持臂 29a 軸孔 29b 卡合槽 30 支持軸 3 1 齒輪 3 2 彈簧鉤元件 32a 溝槽 3 3 彈簧圈 33a， 3 3 b端部 33c 環圈部 34 螺絲 3 5 桿 44 支持軸 45 彈簧鉤元件 45a 卡合槽 46 彈簧圈 46a 端部 5 1 端部分離機構 -14 1295234 5 2 分離平板 52a 尖端 5 3 彈簧圈 5 4 變換機構 5 5 固持塊23 Recording paper 24 Axis 25 Bearing 26 Guide plate 27 End separation mechanism 28 Separation plate 28a Tip 29 Retaining arm 29a Shaft hole 29b Engagement groove 30 Support shaft 3 1 Gear 3 2 Spring hook element 32a Groove 3 3 Spring ring 33a , 3 3 b end 33c loop portion 34 screw 3 5 rod 44 support shaft 45 spring hook member 45a engagement groove 46 spring ring 46a end portion 5 1 end separation mechanism-14 1295234 5 2 separation plate 52a tip 5 3 spring Circle 5 4 transformation mechanism 5 5 holding block
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