The sewing needle 160 is inserted into the insert hole 152K of the joint body 152 and secured with the screw 156, protruding downward with reference to a lower surface of the joint body 152. The Federal Reporter - Volume 19 - Page 429 It helps to make the hole of the fabric and strengthen the needle blade. As illustrated in. Button Hole Sewing Machines - Button Stitch Sewing Machine Specifically, an outer diameter of the sleeve 122 is set to a length which is equal to or less an inner diameter of the vertically-movable sleeve 112 (preferably a length which is smaller than the inner diameter of the vertically-movable sleeve 112) such that the sleeve 122 can rotate within the vertically-movable sleeve 112. Set point: Set point needles used for sewing woven fabrics. The basic structure of sewing machine is the same whether it is hand operated, treadle, and electric sewing machines. In a state where the cam shaft 30 is secured to the joint 50, the guide bush 14 is sandwiched between the joint 50 and the disc-shaped portion 32, and an upper surface of the joint body 52 remains in contact with a lower surface of the guide bush 14. Here we go! The machine must use duster cover to cover it when it did not work. Point should be different for different type of fabric. Reports of Patent Causes: Decided in the Circuit Courts of In short, an arm that holds a needle with one thread is positioned over a base plate that holds a bobbin with another thread. The guide pin 124 has a disc-shaped portion 126 and a lower shaft 128 extending downward from a lower surface of the disc-shaped portion 126. These machines are used for sewing both woven and knitted garments bymachineoperators. Needle Bar Stroke: 30.7mm/ Needle Positioner-up/down. 27 Parts of a Sewing Machine With Details - ORDNUR Blade is gradually tapered to tip. Fusion 2 Needle Walking Foot 3/8 Gauge Complete Heavy Duty. Specifically, the holder 170 is a member which is to be secured to another member (e.g., a member constituting the housing of the sewing machine) and which is for securing the needle bar 105. Butt helps for easily attaching the needle with the needle bar or clamp of the sewing machine. If you continue to use this site we will assume that you are happy with it. Except the cam shaft being secured, the needle bar can be handled in the same way as is an ordinary needle bar. ORIGINAL CODE: EPIDOSDIGR1, Free format text: Mainly used for this process size is-14, 11. An example of a case where the needle bar 5 is applied to an embroidery sewing machine is first described. Step 1: How a Sewing Machine Works. Parts of the sewing machine is given below-. Spin the balance wheel in the sewing direction which means toward the operator till the needle bar is at the highest position. The needle bar according to claim 1, 2, 3, 4, 5, 6, 7, or 8, wherein, The needle bar according to claim 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein the joint has, The needle bar according to claim 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein the joint has a joint body including. Found inside Page 875This horizontal thrust of bar F swings needle - bar frame C on pivot a and the vibrating needle makes zigzag stitches . used " a sewing machine adapted for straight - away or zigzag stitching ; the machine has " a driving shaft R. K. Sewing Machine - Manufacturer of Feed Off The Arm Side Mudda Sewing Machine, Double Needle Lockstitch Fixed Bar Sewing Machine for Canvas Carry bags, End Cutter Machine, Button Stitch Sewing Machine (with A1 teration Function) and Sewing & Knitting Machine in Dadar, Mumbai, Maharashtra The holder body 71 has a plate 72, a tubular portion 74 formed on an upper surface of the plate 72 so as to protrude upward, a fixed portion 76 continually followed by an upper end of the tubular portion 74, and a tubular portion 78 formed on a lower surface of the plate 72 so as to protrude downward. MACHINE DESCRIPTION: High Speed, Two Needle, Angular Stiching, Split Needle Bar, Drop Feed, Needle Feed, Lockstich Machine. Moreover, since the guide pin 124 is secured to the joint 150, the rotation section 120 will not upwardly come out of the needle bar body 110. The crank rod 230 corresponds to the needle bar connecting stud up/down mechanism that vertically moves the needle bar connecting stud. In an automatic sewing machine disclosed in connection with Patent Document 2, a needle is rotated by a needle rotation motor. Tension disc: The two concave discs put together with the convex. Moreover, the pair of openings 20a and 20b are formed in the sleeve 20,and the pair of grooves 36a and 36b are formed in the cam shaft 30. 8. It may need to be adjusted or a part may need to be replaced, but a sewing machine that is given proper maintenance and cleaned regularly seldom actually "wears out." Sewing machines generally require basic maintenance of cleaning . A worn, dull or damaged needle can cause stitch problems, such as skipped stitches or puckering seams. Accordingly, occurrence of a hitch stitch can be prevented. In particular, when the needle bar 105 shifts from the bottom dead center to the top dead center, the sewing needle 160 performs 120-degree counterclockwise rotation when viewed from above. Found inside Page 55354 . sewing - machine 5535 sexagene tached to shaft h ; i , take - up cam with set - screw ; j , take ity the looper g ; l , vertically reciprocating needle - bar ; n , protozoans , with , however , many exceptions hereand there up lever Therefore, an additional rotation mechanism for rotating the needle bar is not necessary. Price: $8.80. It is the largest and strongest part of the needle. Some of these functions include; Regulating the presser foot. Hence, the needle bar can accordingly be applied to existing sewing machines easily. A lower end of the needle bar holding spring 226 stays in contact with the support 212, thereby regulating downward extension of the needle bar holding spring 226. A lower end of the presser foot spring 228 stays in contact with the presser hood holder 222, thereby regulating downward extension of the presser foot spring 228. A needle bar 105 of the second example is a needle bar for use with a sewing machine and approximately has the same configuration as that of the needle bar 5 of the first example However, the needle bar 105 is different in terms of a mechanism for rotating the sewing needle. Specifically, the inner diameter of the tubular portion 74 is set to a length that is equal to or slightly larger than an outer diameter of the sleeve 20. In some machine flat side of the needle shank is at the back. Under management supervision, all garments should be checked thoroughly. So long as the needle bar guide pin 510 is disengaged from the cam groove 508a by being pulled outside, the needle bar 508 can be upwardly pulled out of the two receptacles 509a, 509b, the needle bar connecting stud 505, and the sleeve 506. Since the sewing needle rotate counterclockwise in the course of shifting from the bottom dead center to the top dead center, occurrence of hitch stitches can be prevented. The term of single needle stitching often found on dress shirt labels, referering to lockstitch machine. Hook Size : Standard. A needle bar is a vertical bar on which the needle is mounted. Hence, even in this regard, the rotation unit 165 can smoothly rotate. The joint 150 has a cylindrical joint body 152 whose lower end is chamfered, a screw (a first screw) 154 screw-engaged with a threaded hole 152a of the joint body 152, and a screw (a second screw) 156 screw-engaged with a threaded hole 152b of the joint body 152. Even at the time of attachment of the needle bar, the only requirement is to do is to perform work for securing the needle bar connecting stud to the needle bar body, except the sleeve being secured, in the same way as is an ordinary needle bar. . The needle bar can be easily applied to existing sewing machines by means of only providing the support member for fixing the member to be secured. We use cookies to ensure that we give you the best experience on our website. The main shaft angle control works to prevent needle breakage even when the touch-back switch is used to perform reverse feed stitching. Needle Position Indicator. Online Vehicle Management System Software Sale! Equipped with needle breakage prevention function while reverse sewing. Study now. However, a diameter of the upper portion 131 of the cam shaft 130 is smaller than the outer diameter of the sleeve 20 of the first example. Each of the helical portions 36a-2 and 36b-2 has a rotation angle of about 120 degrees (or exactly 120 degrees) from its upper end to lower end. Max. The needle bar rotation mechanism described in connection with Patent Document 4 has a configuration in which the needle bar 508 is held by the braces 509a and 509b attached to the needle bar supporter 509. The needle bar body 110 is vertically moved along with the vertical movement of the needle bar connecting stud 330, whereby the rotation unit 165 performs rotation. Brother CP60X Computerized Sewing Machine. The word "sleeve 20" may also be referred to as a "fixed sleeve 20.". Stitch Length: 5 mm. The axis line of the sleeve 122, an axis line of the disc-shaped portion 126, and an axis line of the lower shaft 128 are determined so as to come into alignment with each other. Blade The openings 20a and 20b are formed so as to run through the sleeve 20 from its outer circumferential surface to inner circumferential surface. In 1846, Isacc M. Singer, an American, produced a machine that had a straight needle and could sew continuously. The cam shaft 130 has a configuration in which the pair of grooves 136a, 136b are formed in a columnar shaft-shaped member. Hence, occurrence of hitch stitches can be prevented. "DigiFlex Feed" simplifies feeding adjustments that resolve sewing issues. The two holes can also be formed in line with each other. Head- The complete sewing machine without the box or stand is called Head. Whether it is fixing the sewing machine to your needs, you'll be able to do it all after reading this article. The groove 36a and the groove 36b are formed so as to become symmetrical about a point with the axis line of the cam shaft 30 laid therebetween. B . Moreover, the outer diameter of the sleeve 20 is made larger than a diameter of the insert hole 14K of the small-diameter portion 10-1. . Found inside Page 1Objective : To learn the adjustment and timing of the thread controller , needle bar , sevi.ng hook , feed dog , and spindle function , and principal parts involved in the operation of sewing machines is essential before making any A state of specific use of the needle bar 5 having the configured mentioned above is now described. Each of the grooves 136a, 136b continually has, in sequence from above, a straight portion, a helical portion, and another straight portion. Specifically, the only requirement is to do at the time of attachment and replacement of the needle bar 5 is to handle the needle bar 5 as is the case with an ordinary needle bar except detachment and attachment of the holder 70. At the time of replacement of the needle bar 5, the needle bar connecting stud 220 is unfastened from the needle bar body 10, and the holder 70 is unfastened from the support 216 by unscrewing the screw 86 which secures the holder 70, whereby the needle bar 5 can be pulled upward. The major function of the presser bar lifter . A presser foot spring 228 is interposed between the needle bar connecting stud 220 and the presser foot connecting stud 222. A specific state of use of the needle bar 105 having the above configuration is now described. Its job is to bring the sewing machine needle to its highest position.
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