M245222 五、創作說明（l) 一、 新型所屬之技術領域： 本創作係有關於一插 指一種應用於縫紉機，縫紉機車針定位裝置的改良，尤 的定位在所設定的位置及在縫紉機停止時，將車針準確 的方式，改善了習用光與的裝置，其主要藉由磁感應檢測 精簡便於組裝、維修，=偵測車針定位的缺失，使其更加 二、 先前技術··、夕 < 時增加其精確度和耐用度者。 一般而言，縫紉機之 裝置，用以在車針停止針，動軸^側皆配設有一車針定位 位，藉此使再次車縫下針時夺2將車針定位於預設之準 :’以提昇車縫物件之品質，：習：2之針距維持定 =-圖），主要將該定 二的車針定位裝置（ 動定位裝置!之轉轴Η 上，傳 二^:次電路板"上兩個對應的光^^兩， Ϊ:鱼：，停車時，利用該光感測元件？5 I:相互 _ 疋位，惟前述定位裝置1係設於傳動_ 感蜊 :要；整時需取下外殼並放鬆定位裝置卜J 因 =田不便，另該定位裝置1係露設於傳動軸1 〇 凋整 =時間之振動下容易造成機件鬆脫或損壞，，在 外定期校準其車針準位，所以其具有； 圖）另^國申請第88220045號專利案（如第二、三失。 -γ制；；^要於缝匆機停車狀態時，外部之控制箱即輪出 控制訊號經傳輸線傳輸至第一磁瓖2上，而第一磁戸祝出 產生之磁場源即與定位元件2丨上之磁塊2 2形成—相吸长作2所 M245222 五、創作說明（2) 而吸住定位元件2 1，即可令外罩體2 3停止轉動，而縫紉機 之車針即停在預定之位置上，但前述的車針定位方式，係 藉磁力吸引的卡掣方式，令第一磁環2和磁塊2 2相吸而吸 住定位元件2 1，由於第一磁環2和磁塊2 2的磁力會衰減， 而且傳動轴2 4有一定的轉動力矩，因此在縫紉機停車時， 該傳動軸2 4會因慣性而產生些微角度偏轉，致其準確度不 高，因此有必要加以改善。 三、新型内容： 本創作之主要目的係提供一種縫紉機車針定位裝置的 改良，其中該盤體和磁性檢出器，係設於皮帶輪内側之傳 動轴上，除結構簡單、易於組裝外，由於盤體上並沒有任 何電子或光學元件，故其隨傳動軸樞轉時不會有損壞或鬆 脫之虞。 本創作之次要目的係提供一種縫紉機車針定位裝置的 改良，其中該車針之定位係藉由該磁性檢出器於盤體樞轉 時，檢測該二永磁塊之位置，且將其檢出之脈衝信號回授 至馬達控制與監理系統，以之與所設的信號作比較，而作 為縫紉機停車時之車針定位依據，所以該利用磁感應取得 控制信號的方式，乃較光學或磁吸式更加簡易，且具較高 的可信賴度和耐用性。 本創作之又一目的係提供一種縫紉機車針定位裝置的 改良，其中盤體的週面係開設至少一個缺口 ，以及使用者 可稍鬆釋該皮帶輪並藉由工具插入該缺口中，以微調該盤 體，進而可便利的調整該二永磁塊並對正於車針之上定位M245222 V. Creation instructions (l) I. New type of technical field: This creation relates to an improvement of a pin insert applied to sewing machines, sewing machine needle positioning devices, especially positioning at the set position and when the sewing machine stops The accurate method of the burs improves the conventional light and device, which is mainly used for easy assembly and maintenance through magnetic induction detection. = Detecting the lack of bur positioning, making it more advanced. Prior technology ... Those who increase their accuracy and durability. Generally speaking, the device of the sewing machine is used to stop the needle on the needle, and a needle positioning position is provided on the ^ side of the moving shaft, so that when the needle is sewn again, the needle is positioned at the preset standard: 'In order to improve the quality of sewing objects ,: Xi: Maintaining the stitch pitch of 2 = -picture), mainly the stitch positioning device (moving positioning device! Of the positioning device!) On the rotating shaft ，, pass two ^: secondary circuit The two corresponding lights on the board are two, Ϊ: fish :, when parking, use this light sensing element? 5 I: mutual 疋 position, but the aforementioned positioning device 1 is set on the drive _ sense clam: to It is necessary to remove the casing and loosen the positioning device at all times. J = due to the inconvenience of the field, and the positioning device 1 is exposed on the transmission shaft 1 0. It is easy to cause the parts to loosen or be damaged under the vibration of time. Calibrate the needle level, so it has; Figure) Patent Application No. 88220645 (such as the second and third miss.-Γ system); ^ When the sewing machine stops, the external control box is The rotation-out control signal is transmitted to the first magnetic coil 2 through the transmission line, and the magnetic field generated by the first magnetic coil is transmitted to the positioning element 2 丨The magnetic block 2 2 is formed—the two are attracted to each other. M245222 5. Creation instructions (2) While holding the positioning element 2 1, the outer cover 2 3 can be stopped, and the sewing machine needle is stopped at the predetermined position. Above, but the above-mentioned bur positioning method is a latching method attracted by magnetic force, which makes the first magnetic ring 2 and the magnetic block 22 attract each other and attract the positioning element 21 because the first magnetic ring 2 and the magnetic block 2 The magnetic force of 2 will be attenuated, and the transmission shaft 24 has a certain rotating torque. Therefore, when the sewing machine is stopped, the transmission shaft 24 will generate a slight angular deflection due to inertia, resulting in low accuracy, so it is necessary to improve it. 3. New content: The main purpose of this creation is to provide an improvement of the sewing machine needle positioning device. The disk body and magnetic detector are located on the drive shaft inside the pulley. In addition to its simple structure and easy assembly, The disk body does not have any electronic or optical components, so it will not be damaged or loose when it pivots with the transmission shaft. The secondary purpose of this creation is to provide an improvement of the sewing machine needle positioning device, where the needle Positioning system The magnetic detector detects the position of the two permanent magnet blocks when the disc body is pivoted, and feeds back the detected pulse signals to the motor control and supervision system, and compares them with the set signals, and As the basis for positioning the needle when the sewing machine is stopped, the method of using magnetic induction to obtain the control signal is simpler than the optical or magnetic type, and has higher reliability and durability. Another purpose of this creation is to provide An improvement of a sewing machine needle positioning device, wherein the peripheral surface of the disk body is provided with at least one gap, and the user can slightly release the pulley and insert the tool into the gap with a tool to fine-tune the disk body, thereby facilitating convenient adjustment. The two permanent magnet blocks are positioned above the bur
第6頁 M245222 五、創作說明（3) 和下定位之準位者。 四、實施方式： 首請參閱第四〜七圖所示，本創作一種縫纫機車針定 位裝置的改良，其中該縫紉機3之皮帶輪3 1係固設於傳動 轴3 2之軸套3 2 0外侧，且受伺服馬達3 3帶動以驅動傳動軸 3 2運轉，其特徵在於：該盤體3 4係設於皮帶輪3 1内側之傳 動轴3 2上，盤體3 4之環面上乃配合針棒軸3 5之針送行程而 規劃有車針位處於上定位和下定位準位時之兩個不同極性 的永磁塊341、342，而在實際施行時，該永磁塊乃由稀土 金屬所製成為最佳，並利用鉚固的方式結合在盤體34之環 面上；該磁性檢出器4，係對應該永磁塊3 41、3 4 2之位置 而固設於縫紉機3之機柱3 0外緣，以及該磁性檢出器4可在 盤體3 4受傳動轴3 2連動驅轉時，檢測該永磁塊3 41、3 4 2之 位置，且將其與磁性檢出器4切割之脈衝信號回授至馬達 控制和監理系統5，以之與所設定瞬間信號比較而作為控 制正確的上定位和下定位之車針停止位置之依據；藉此令 使用者可切換馬達控制和監理糸統5設定縫幼機3停止時車 針之上定位或下定位位置’（按一般而言，係將縫紉機3 停止時設定在上定位）’進而讓磁性檢出器4檢測到該永 磁塊3 4 1、3 4 2時，即將馬達3 3截止並把車針停止在所設定 之位置者。 次請參閱第五、六圖所示，可看出其中盤體34的週面 係開設至少一個缺口 343，以及使用者可稍鬆釋該皮帶輪 31並藉由工具插入該缺口 343中，以微調該盤體34，進而Page 6 M245222 V. Creative Instructions (3) and Positioning Standards. Fourth, implementation mode: First, please refer to the fourth to seventh figures, this invention creates a sewing machine needle positioning device improvement, wherein the sewing machine 3 pulley 3 1 is fixed to the drive shaft 3 2 sleeve 3 2 0 The outer side is driven by a servo motor 3 3 to drive the transmission shaft 3 2, which is characterized in that the disk body 3 4 is arranged on the transmission shaft 3 2 inside the pulley 31 and the ring surface of the disk body 3 4 is matched. There are two permanent magnet blocks 341 and 342 with different polarities when the needle position is at the upper and lower positioning levels for the needle feeding stroke of the needle bar shaft 35. In actual implementation, the permanent magnet block is made of rare earth It is made of the best metal, and is combined with the ring surface of the disc body 34 by riveting. The magnetic detector 4 is fixed to the sewing machine 3 corresponding to the position of the permanent magnet blocks 3 41 and 3 4 2. The outer edge of the machine pillar 30 and the magnetic detector 4 can detect the position of the permanent magnet blocks 3 41 and 3 4 2 when the disk body 3 4 is driven in conjunction with the drive shaft 3 2 and connect it with the magnetic The pulse signal cut by the detector 4 is fed back to the motor control and supervision system 5 and compared with the set instantaneous signal for correct control. The basis of the stop position of the needles for the upper and lower positioning; this allows the user to switch the motor control and supervision system 5 to set the upper or lower positioning of the needle when the sewing machine 3 is stopped '(in general, When the sewing machine 3 is stopped, it is set to the upper position.) When the magnetic detector 4 detects the permanent magnet block 3 4 1 and 3 4 2, the motor 3 3 is turned off and the bur is stopped at the set position. . Please refer to the fifth and sixth figures below, it can be seen that the peripheral surface of the disc body 34 is provided with at least one notch 343, and the user can release the pulley 31 slightly and insert the notch 343 with a tool to fine-tune该 盘 体 34, and further
M245222 五、創作說明（4) 調整該二永磁塊3 4 1、34 2並對正於車針之上定位和下定位 之準位者，復將皮帶輪上緊，故可得到較便利之調整模式 者0 fiBl 第8頁 M245222 圖式簡單說明 觀圖。 分解圖。 剖視圖。 平視圖。 第一圖、係習用車針定位裝置之立體外 第二圖、係第8 8 2 2 0 0 4 5號專利案之立體 第三圖、係本8 8 2 2 0 0 4 5號專利案之組合 第四圖、係本創作設於縫紉機上之外觀 第五圖、係本創作之立體分解圖。 第六圖、係本創作之組合立體圖。 第七圖、係本創作之組合平視圖。 圖號說明： 3、 縫紉機 3 0、機柱 3 1、皮帶輪 3 2、傳動軸 3 2 0、軸套 3 3、伺服馬達 34、盤體 3 4卜3 4 2、永磁塊 343、缺口 4、 磁性檢出器 5、 馬達控制和監理系統M245222 V. Creation instructions (4) Adjust the two permanent magnet blocks 3 4 1, 34 2 and tighten the belt pulley to the standard position above and below the bur, so it can be adjusted more conveniently. Modem 0 fiBl Page 8 M245222 Schematic description of the view. Exploded view. Sectional view. Flat view. The first image, the second perspective view of the conventional needle positioning device, the third perspective view of the 8 8 2 2 0 0 4 5 patent case, and the 8 8 2 2 0 0 4 5 patent case Combining the fourth figure, the fifth figure of the appearance of this creation on a sewing machine, the three-dimensional exploded view of this creation. The sixth figure is a combined perspective view of this creation. The seventh figure is a combined plan view of this creation. Description of drawing number: 3. Sewing machine 3 0, machine column 3 1. Pulley 3 2. Transmission shaft 3 2 0, shaft sleeve 3 3. Servo motor 34, plate 3 4 Bu 3 4 2. Permanent magnet block 343, notch 4 5, magnetic detector 5, motor control and supervision system