High frequency sewing machine
A sewing machine, high-frequency technology, applied in sewing machine components, sewing equipment, cloth pressing mechanisms, etc., can solve the problems of unsuitable, impossible, and incapable of fully coping with curved parts joining stretchable fabric joining, etc., and achieves uniform adhesion. The effect of bonding strength, avoiding burnout, and reliable bonding strength
Active Publication Date: 2014-11-26
YAMATO SEWING MASCH MFG CO LTD
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Problems solved by technology
[0009] However, when using a conventional high-frequency sewing machine that sandwiches the material to be processed between a pair of electrode rollers and feeds it linearly in a certain direction, it cannot fully cope with the joining of curved parts and the joining of stretchable fabrics.
That is, the conventional high-frequency sewing machine using a pair of electrode rollers can be applied to the case where the overlapped part is bonded while linearly feeding a non-stretchable material such as a resin sheet. It is not applicable to the manufacturing and processing of clothing products with many curved parts and many elastic materials. It can be said that it is practically impossible to directly transfer the previous high-frequency sewing machine to fiber fabric bonding.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment Construction
[0063] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0064] figure 1 It is a perspective view of the appearance of the high-frequency sewing machine of the present invention partially cut away, figure 2 is an enlarged perspective view of the main part of the above sewing machine, image 3 is an enlarged longitudinal sectional side view of the main part of the above sewing machine, Figure 4 It is an exploded perspective view showing the structure of the feed dogs included in the sewing machine.
[0065] exist Figure 1 ~ Figure 3 In , reference numeral 1 is a sewing machine main body, and the sewing machine main body 1 is composed of a sewing machine arm portion 2 and a sewing machine base portion 3 . On the upper wall portion of the sewing machine base portion 3, a workpiece loading plate for loading the workpiece H including the sewing cloth W so as to be slidable and movable (this member corresponds to the needle ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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In a high frequency sewing machine, feed dogs producing synthetic horizontal and vertical movements cooperate with a presser foot to intermittently transfer a workpiece mounted on a mounting plate. While the workpiece is not transferred, high frequency power having a predetermined value is applied between a pair of planar electrodes, so that a thermoplastic resin tape held between overlapped portions of a fiber cloth in the workpiece is melted under dielectric heating, thereby bonding together the overlapped portions of the fiber cloth. On the other hand, while the workpiece is transferred, high frequency power having a value smaller than while the workpiece is not transferred, is applied between the planar electrodes. This ensures uniform bonding strength, and also prevents occurrence of a defective portion, such as burn or a burn hole. Additionally, curved portions or stretchable fiber clothes can be satisfactorily and efficiently bonded together.
Description
technical field [0001] The present invention relates to a high-frequency sewing machine suitable for use in the following situations: fabrics made of natural fibers represented by cotton, wool, silk, etc., or synthetic fibers represented by polyester, nylon, acrylic, etc. (hereinafter, (referred to as "fiber cloth" in the present invention) as the target material is produced by bonding (fusing) overlapping parts such as overlapping ends of the fiber cloth with a thermoplastic resin tape that is melted by high-frequency induction heating. Processing of clothing products (clothing) such as women's clothing, children's clothing, and men's clothing. [0002] As such a high-frequency sewing machine, the workpiece itself is, for example, a thermoplastic synthetic resin sheet such as polyvinyl chloride resin or a synthetic resin film, and techniques for fusing overlapped portions of such workpieces have been widely developed and put into practical use. This high-frequency sewing mac...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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IPC IPC(8): B29C65/04
CPCB29C65/72B29C65/4815B29C66/729B29C66/845B29C66/93441B29C66/1122B29C66/932B29C66/91421B29C65/7891B29C65/04B29C66/8167B29C66/8746B29C66/91645B29C65/5057B29C66/9392B29C66/91212B29C66/91231B29C65/18B29C66/91951B29C66/91431B29C65/305B29C66/006B29C66/43B29C66/71B29C66/81262B29C66/81263B29C66/81871B29C66/836B29C66/961B29K2055/02B29K2059/00B29K2069/00B29K2071/00B29K2077/00D05B23/00D05B29/00
Inventor 中田纪男冈本将挥仓田博道山本泰司川田信行辻章嘉
Owner YAMATO SEWING MASCH MFG CO LTD