A rotary line regulator device
A regulator and rotary technology, applied in the direction of tension devices, sewing equipment, sewing machine components, etc., can solve the problems of difficult to stabilize tension, easy to be affected by vibration, low reproducibility, etc., to achieve easy low tension, maintain low tension, The effect that adjustment work is easy
Active Publication Date: 2020-03-24
JUKI CORP
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Problems solved by technology
[0007] However, the above-mentioned rotary thread adjuster device needs to be adjusted manually by rotating the adjusting screw, and the adjustment work is very cumbersome
In addition, since the thread tension is adjusted by feel while applying the rotation operation, the reproducibility is low
Also, it is very difficult to adjust the thread tension during sewing
[0008] In addition, with regard to the above-mentioned rotary type thread adjuster device, felt material is used as the abutment member, so that low tension can be achieved, but if the contact member is not lowered, the Low tension cannot be maintained with the pressing force in contact with the rotary line adjuster disc
However, if the pressing force for bringing the abutting members into contact is reduced, the rotary thread regulator dial is easily affected by vibrations during high-speed rotation of the sewing machine, and is easily affected by the weight and friction of the parts that transmit the contact pressure to the abutting members. Influenced by it, it is difficult to stabilize the tension and maintain the target value
Method used
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Embodiment Construction
[0045] [Schematic structure of the thread regulator device]
[0046] A rotary thread adjuster device 10 for a sewing machine according to an embodiment of the present invention will be described based on the drawings.
[0047] figure 1 It is a perspective view of the rotary thread adjuster device 10 .
[0048] like figure 1 As shown, the rotary type wire adjuster device 10 has: a wire adjuster 20; a wire adjuster solenoid 40 as an actuator, which arbitrarily adjusts the wire tension of the wire adjuster 20; The output of the regulator solenoid 40 is passed to the wire regulator 20 .
[0049] figure 2 It is a cross-sectional view of the rotary thread adjuster device 10 in a state equipped with a sewing machine. The rotary thread adjuster device 10 is supported on a sewing machine frame 100 .
[0050] figure 2 The right side in becomes the front side of the sewing machine frame 100, figure 2 The left side in the figure becomes the back side of the sewing machine frame...
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The invention provides a rotary line regulator device which stably realizes low line tension. The a rotary line regulator device is provided with: a line regulator disc (30) that rotates by the movement of a wound thread; a line regulator shaft (21) that rotatably supports the line regulator disc; an abutting member (28) which is supported by the line regulator shaft, is movable in the axial direction of the line regulator shaft, comes into contact with the line regulator disc, and imparts a frictional load to the rotation of the line regulator disc; and an actuator (40) capable of changing and adjusting a pressing force for bringing the abutting member (28) into contact with the line regulator disc (30). In addition, the abutting member (28) is formed of a resin member. The abutting member (28) is in contact with the line regulator disc (30) by a high pressing force, but achieves a low line tension, and can stably maintain the low line tension by suppressing the influence of vibrations and the like.
Description
technical field [0001] The present invention relates to a rotary thread adjuster device for applying tension to a thread of a sewing machine. Background technique [0002] Conventionally, in order to form appropriate stitches, a sewing machine is equipped with a thread adjuster device that applies tension to various threads used for sewing. [0003] The usual configuration of this thread regulator device is to sandwich the thread between a set of thread regulator discs, and adjust the tension of the thread by adjusting the clamping pressure of the set of thread regulator discs. [0004] On the other hand, depending on the type of sewing machine, there is also a requirement to form the seam smoothly. In the case of adjusting the thread tension by sandwiching the thread with the thread regulator disc, the thread tension is relatively large. The scope works, so it is not suitable for the above requirements. [0005] A rotary thread regulator device is suitable for imparting l...
Claims
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IPC IPC(8): D05B47/04
CPCD05B47/04
Inventor 谢怡仁小川达矢
Owner JUKI CORP