201107075 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種磨削刷毛末端之裝置，其包括至少一旋轉之砂輪。 【先前技術】 將較小之刷毛束植入至刷體（例如牙刷）之後或於植入之前，可進行刷 €末端之磨削’於磨削中將刷毛絲之自由端倒圓，其中加工直徑例如為50mm 之較大刷毛束。尤其當刷毛束較大時，存在自由長度較大之問題，由於較大 之自由長度，刷毛束可能會彎曲，因此需要具有較大直徑之砂輪，以使得刷 毛末被包括進入至砂輪範圍内。若刷毛絲之一部分偏出砂輪範圍，而將無 法對其進行磨削，進而導致品質下降。 但通常要限制磨削裝置之佔用空間，進而使用較小之砂輪較佳，尤其應 於具有2至3秒之較短週期時間之大型設備中使用，其中依次佈置多個砂 輪，以獲得良好之磨削效果。 【發明内容】 因此本發明目的為，提供一種上述類型之磨削裝置，透過該磨削裝置， 即使於砂輪直徑較小之情況下，亦能實現良好之磨削效果。 上述目的中，根據本發明之解決方法為，於圓周紙為砂輪配設一突出 於磨削面之限位元件。透過該限位元件形成刷毛無法偏離出线緣，進而使 其保躲砂輪上。此即祕自由長度較大找毛束切毛絲端部始錄 砂輪上’ i〇L被均勻地磨削，進而不會導致品質下降。限位元件可— 米例如2mm至5mm之高度。 為減小於限位元件毛絲之間技擦，並防蝴毛絲縱向侧 希望《磨損，限位元件可建構成呈舰，並且藉由_承支秘砂輪上。、 帶形Γ一結構簡單之實施方式規定，限位元件藉由繞砂輪咖設置之板 【構而成。例如可於砂 根據另一實施方式規定，砂輪與限位元件成_ 201107075 輪製造中於車削砂輪時留下限位元件作為外邊緣。 限位元件於内侧可具有凹輪廓，該凹輪廓之半徑尤其係可等於待磨削刷 毛直徑之一半。在此刷毛可以以其待磨削之末端最優地沿著限位元件滑動。 特別適立的係，於限位元件内侧覆蓋磨料，此甚至還能藉由限位元件優 化磨削效果。 #砂輪偏心地與一旋轉驅動裝置相連，還可改善磨削效果。 右石y'輪藉由挽性轴與旋轉驅動裝置相連，則砂輪除了其旋轉運動之夕卜， 還可實施__。此;Γ、僅麟刷毛狀前端餅細，且亦麟刷毛端部 特別佳地倒圓。 若繞一旋轉軸線旋轉之砂輪可整體地繞平行於該旋轉軸線之轴線環繞 地轉動’則還可進一步改善磨削效果。砂輪之由此產生之行星運動能從四周 均勻地磨削刷毛末端。 有利的係’砂輪於其加工面上具至少一突出於磨削面，大致沿徑向延伸 之凸出部。當砂輪旋轉時，該種凸出部可使到達凸出部之刷毛絲偏轉，然後 重新碰到砂輪之磨削面上。可藉由凸出部以不同長度約束不同長度之刷毛 絲，因此與此相對地與磨削面接觸時間不同。此即能有效地防止較長之刷毛 絲被磨尖，進而能於磨削成型之刷毛束時，實現對所有刷毛絲均勻之磨削效 果。 適宜的係，砂輪於其加工面上具有通孔。藉由該等通孔可去除於磨削過 程中產生之磨屑。為此’尤其係可於砂輪之背向加工面之一側安裝抽吸裝置。 【實施方式】 如附圖所示，以附圖標記1表示之用以磨削刷毛末端2之磨削裝置具有 3 ’胃砂輪與旋轉驅動裝置4相連並且可旋轉地支承。 砂輪3可藉由可旋轉支承於偏心元件6中之撓<[±軸5，繞第一旋轉軸線 7a旋轉。偏心元件6又與另一轴8固定相連，該轴被未圖示出之一驅動裝置 (例如伺服電機）驅動’且可繞第二旋轉轴線7b旋轉。 4 201107075 .3相連之5以高速旋轉，進而能良好地磨削刷毛末端 2，而另一軸8以較小速度被驅動，用於產生砂輪3之行星運動。該二^ 5、 8亦可藉由未圖示出之變速器相互連接，進而使得對二^ 5、8僅需一唯一 之共同驅動馬達。 尤其可由圖五及圖六看出’砂輪3與挽性軸5偏心地相連，進而產生 砂輪3之額外不平衡，藉由該砂輪可改善磨削效果。 比較圖一至圖四可看出，一方面於砂輪3圍繞挽性轴5旋轉之過程中， 另—方面砂輪3圍繞固定軸8旋轉之過程中，待磨刷毛束9及砂輪3之間 之相對位置產生變化。於此由套筒1〇束缚刷毛絲而形成之刷毛束9，於此 期間進入遠離砂、輪3之外邊緣區域（圖一及圖二）以及靠近砂輪3之外邊 緣區域（圖三及圖四）。為於圖三及圖四所示之情形下，有效避免刷毛束9之 各刷毛絲偏出砂輪3之邊緣而無法對其磨削，進而導致磨削效果不均勻， 於圓周側上給砂輪3配設一突出於磨削面之限位元件11。外側之各刷毛絲 緊靠於如微之限侃件u ±，且被舰位耕約束，目此麟磨刷毛末 端2不會離開砂輪3。 為防止於沿著限位元件U滑動時，於刷毛絲之縱向侧產生磨損，限位 元件11藉由球軸承12支承於砂輪3上。此即能減少限位元件u及刷毛 絲之間之摩擦力。 由於軸5係可彎曲的，因此^輪3可進行擺動運動，進而不僅可平地磨 削刷毛末端2，且還可將其倒圓。 砂輪3於其加工面上具多個突出於磨削面，大致沿徑向延伸之凸出部 ^。藉由該種凸出部13，使刷毛束9呈扇形散開，且於砂輪3繼續旋轉過程 中逐漸將其重新放開；其中例如於成型刷中，較長之刷毛絲受約束長度相對 地大於較短之刷毛絲，進而避免過度磨削較長之刷毛絲或避免將其磨尖。 可很好地由圖五和及圖六所示之俯視圖看出，砂輪3於其加工面上具多 個通孔14。所產生之磨屑可藉由該等通孔排出，進而能夠改善磨削效果，因 201107075 為不會由於積聚磨屑而妨猶削 側安裝未®示出之—抽吸裝置， 而妨礙磨削。尤其係可於砂輪3201107075 VI. Description of the Invention: [Technical Field] The present invention relates to a device for grinding the ends of bristles, comprising at least one rotating grinding wheel. [Prior Art] After the smaller tufts of bristles are implanted into the brush body (for example, a toothbrush) or before implantation, the end of the brush can be grounded. 'The free end of the brush wire is rounded during grinding, where processing A larger bundle of bristles having a diameter of, for example, 50 mm. Especially when the bristle bundle is large, there is a problem that the free length is large, and the bristle bundle may be bent due to the large free length, so that a grinding wheel having a larger diameter is required so that the bristle ends are included into the range of the grinding wheel. If one part of the brush is partially out of the grinding wheel, it will not be ground, resulting in a drop in quality. However, it is usually necessary to limit the space occupied by the grinding device, and it is better to use a smaller grinding wheel, especially in a large equipment having a short cycle time of 2 to 3 seconds, in which a plurality of grinding wheels are arranged in order to obtain a good one. Grinding effect. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a grinding apparatus of the above type which, through the grinding apparatus, achieves a good grinding effect even in the case of a small diameter of the grinding wheel. In the above object, according to the solution of the present invention, the grinding wheel is provided with a limiting member protruding from the grinding surface in the circumferential paper. Through the limiting element, the bristles can not be deviated from the edge of the line, so that they can be hidden from the grinding wheel. This is the secret free length. The length of the haircut is cut at the end of the hair. The grinding wheel 'i〇L is evenly ground, which will not cause the quality to drop. The limiting element can be - for example, a height of 2 mm to 5 mm. In order to reduce the friction between the hairs of the limiting elements and to prevent the longitudinal side of the wool, it is desirable to "wear, the limiting elements can be constructed to form a ship, and by the _ bearer on the grinding wheel. The embodiment of the simple structure of the strip-shaped crucible stipulates that the limiting component is formed by a plate disposed around the grinding wheel. For example, sand can be used according to a further embodiment, in which the grinding wheel and the limiting element are formed in the production of the wheel in the manufacture of the grinding wheel as an outer edge. The limiting element can have a concave contour on the inside, the radius of the concave contour being in particular equal to one-half the diameter of the bristles to be ground. Here, the bristles can be optimally slid along the stop element at the end to be ground. The particularly suitable system covers the abrasive on the inside of the stop element, which even optimizes the grinding effect by means of the stop element. #砂轮 is eccentrically connected to a rotary drive to improve the grinding effect. The right stone y' wheel is connected to the rotary drive by a pull-up shaft, and the grinding wheel can also implement __ in addition to its rotary motion. This; Γ, only the bristles of the hairy front end is thin, and the ends of the bristles are particularly well rounded. The grinding effect can be further improved if the grinding wheel rotating about an axis of rotation can be rotated around the axis parallel to the axis of rotation. The resulting planetary motion of the grinding wheel evenly grinds the ends of the bristles from all sides. Advantageously, the grinding wheel has at least one projection on its machined surface that projects beyond the grinding surface and extends generally radially. When the grinding wheel rotates, the projections deflect the brush wire reaching the projection and then hit the grinding surface of the grinding wheel again. The bristles of different lengths can be restrained by the projections with different lengths, so that the contact time with the grinding surface is different from this. This effectively prevents the longer brush filaments from being sharpened, and thus achieves a uniform grinding effect on all the bristle filaments when the shaped bristle bundle is ground. A suitable system has a through hole on the machined surface. These through holes can be used to remove the wear debris generated during the grinding process. For this purpose, in particular, a suction device can be attached to the side of the working surface on the side of the grinding wheel. [Embodiment] As shown in the drawing, a grinding device for grinding a bristle end 2, indicated by reference numeral 1, has a 3' stomach wheel connected to a rotary driving device 4 and rotatably supported. The grinding wheel 3 is rotatable about the first axis of rotation 7a by a slewing <[±axis 5] rotatably supported in the eccentric element 6. The eccentric element 6 is in turn fixedly coupled to another shaft 8, which is driven by a drive unit (e.g., a servo motor) not shown and rotatable about a second axis of rotation 7b. 4 201107075 .3 The connected 5 rotates at a high speed, which in turn can grind the bristle end 2 well, while the other shaft 8 is driven at a lower speed for generating the planetary motion of the grinding wheel 3. The two 5, 8 can also be interconnected by a transmission (not shown), so that only a single common drive motor is required for the pair 5, 8. In particular, it can be seen from Figures 5 and 6 that the grinding wheel 3 is eccentrically connected to the traction shaft 5, thereby creating an additional imbalance of the grinding wheel 3, by which the grinding effect can be improved. Comparing Fig. 1 to Fig. 4, it can be seen that, on the one hand, during the rotation of the grinding wheel 3 around the traction axis 5, the relative grinding between the grinding wheel 3 and the grinding wheel 3 during the rotation of the grinding wheel 3 around the fixed shaft 8 The position changes. Here, the bristle bundle 9 formed by the sleeve 1 〇 binds the brush filaments, and enters the outer edge region away from the sand, the wheel 3 (Fig. 1 and Fig. 2) and the outer edge region of the grinding wheel 3 (Fig. 3 and Fig.) four). In the case shown in FIG. 3 and FIG. 4, it is effectively prevented that the respective bristle filaments of the bristle bundle 9 are out of the edge of the grinding wheel 3 and cannot be ground, thereby causing uneven grinding effect, and the grinding wheel 3 is provided on the circumferential side. A limiting element 11 protruding from the grinding surface is provided. The outer brush wires are close to the micro-limits u ± and are restrained by the ship's position, so that the end of the brush 2 does not leave the grinding wheel 3. In order to prevent wear on the longitudinal side of the brush filament when sliding along the stopper member U, the stopper member 11 is supported by the grinding wheel 3 by the ball bearing 12. This reduces the friction between the stop element u and the brush filament. Since the shaft 5 is bendable, the wheel 3 can be oscillated so that not only the end 2 of the bristles can be ground flat, but also rounded. The grinding wheel 3 has a plurality of protrusions on the processing surface which protrude from the grinding surface and extend substantially in the radial direction. By means of the projections 13, the bristle bundles 9 are fanned out and gradually released during the rotation of the grinding wheel 3; wherein, for example, in the forming brush, the longer length of the bristle filaments is relatively larger than the restraining length Shorter brush filaments to avoid over-grinding longer brush filaments or avoid sharpening them. As can be seen from the top views shown in Figures 5 and 6, the grinding wheel 3 has a plurality of through holes 14 in its machined surface. The generated grinding debris can be discharged through the through holes, thereby improving the grinding effect, because 201107075 does not hinder the grinding by accumulating the grinding debris and the suction device is not shown. . Especially for the grinding wheel 3
借助於該触裝i麵轉财將磨屑抽 【圖式簡單說明】 以下將根據附圖對本發明所述磨削裝置之一實施例進一步說 附圖如下： 圖一及圖二> 圖三及圖四 分別示出磨削裝置以及待磨刷毛束處於不同位置， 分別示出磨削裝置以及緊靠於限界裝置上之待磨^ 不同位置， 圖五及圖六分麻蛛有處於不肖位置之砂輪磨肖懷 【主要元件概朗】 見圖 1 裝置 2 刷毛末端 3 砂輪 4 旋轉驅動裝置 5 撓性軸 6 偏心元件 7a 第一旋轉轴線 7b 第二旋轉軸線 8 轴 9 磨刷毛束 10 套筒 11 限位元件 12 球抽承 13 砂輪 14 通孔The wear debris is extracted by means of the touch surface i. The following is a schematic diagram of one embodiment of the grinding apparatus according to the present invention as follows: Figure 1 and Figure 2 > And Figure 4 shows that the grinding device and the to-be-furnished tufts are in different positions, respectively showing the grinding device and the different positions to be ground on the limiting device. Figure 5 and Figure 6 are in a different position. The grinding wheel grinding Xiao Huai [main components] See Figure 1 Device 2 Bristle end 3 Grinding wheel 4 Rotary drive 5 Flexing shaft 6 Eccentric element 7a First axis of rotation 7b Second axis of rotation 8 Axis 9 Grinding hair bundle 10 sets Cartridge 11 Retaining element 12 Ball suction 13 Grinding wheel 14 Through hole