Bobboin thread pour-out device
A technology of bobbin thread and wire guide, which is applied in textiles and papermaking, sewing equipment, sewing machine ring mechanism, etc., which can solve time-consuming problems and achieve the effect of easy adjustment
Inactive Publication Date: 2004-04-28
JUKI CORP
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Problems solved by technology
Therefore, when changing the position of the second thread guide 104 when the bobbin thread I of the machine shuttle should be adjusted, the positional relationship between the second thread guide 104, the first thread guide 103 and the thread clamp unit 102 must be paid attention to, so that Make the tensioner unit 102 not interfere with the bobbin thread I, so it is time consuming in this part
Method used
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[0026] Hereinafter, embodiments of the bobbin thread unwinding device 2 of the present invention will be described in detail with reference to the drawings.
[0027] The bobbin thread unwinding device 2 as an example of the present invention is in figure 1 Inside the shown sewing machine M (lock stitch sewing machine or double-thread chain sewing machine), there is a device for feeding bobbin thread I supplied from a bobbin thread supply source (not shown) to a machine shuttle (not shown). In addition, the so-called machine shuttle is a device that cooperates with machine needles to form stitches.
[0028] The sewing machine M consists of a base plate 1 with a base plate surface, from the base plate 1 figure 1 The bottom plate right portion 1a of the right side part is composed of a vertical fuselage part T standing upright, and a machine nose A protruding from the upper end of the vertical fuselage part T along the bottom plate 1 . and in figure 1 The needle is omitted ...
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This bobbin thread feeder 2 feeds the bobbin thread I from a bobbin thread supply source to a looper. This bobbin thread feeder 2 is provided with a right thread guide guiding and passing the bobbin thread I fed from the bobbin thread supply source, a left thread guide 5 guiding and passing the bobbin thread I passing through the right thread guide 6 and feeding it to the looper, and a bobbin thread cam 4 rotating and allowing the outer circumferential surface to interfere the bobbin thread I between the right thread guide 6 and the left thread guide 5 and tensing or loosening the bobbin thread I at a prescribed timing. The right thread guide 6 is provided with a thread guide hole part 62a guiding and passing the bobbin thread I fed from the bobbin thread supply source, a thread tension unit 7 clamping the bobbin thread I passing through the thread guide hole part 62a and adjusting its tension, and a thread guide hole 63a guiding and passing the thread passing through the thread tension unit 7. This right thread guide 6 is integrally and relatively movably provided relative to the bobbin thread cam 4.
Description
technical field [0001] The present invention relates to a bobbin thread unwinding device which is arranged on a lockstitch chain stitch sewing machine or a double-thread chain sewing machine, etc., and supplies bobbin thread to a machine shuttle. Background technique [0002] On lockstitch chainstitch or double-thread chainstitch machines, between the shuttle and the supply of bobbin thread in the machine bed, such as Image 6 As shown, a bobbin thread unwinding device 100 is provided (for example, refer to Japanese Patent No. 2762680). [0003] exist Image 6 In the bobbin thread unwinding device 100, there are: bobbin thread guide base 101 with cutout 101a extending in the crossing direction relative to the bobbin thread path, thread gripper unit 102 for gripping bobbin thread I and adjusting its tension, threading Bottom thread I and form the first, second and third thread guides 103, 104, 105 of the hole that makes it pass through and be arranged between the second and t...
Claims
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Inventor 山本孝
Owner JUKI CORP