Driving mechanism for lifting presser foot, slacking thread and knotting thread in sewing machine and sewing machine
A driving mechanism and presser foot lifting technology, applied in the field of sewing machines, can solve the problems of difficult installation and complicated mechanism structure, and achieve the effects of simplifying the driving mechanism, accurate action and convenient adjustment
Active Publication Date: 2016-07-20
JACK SEWING MASCH CO LTD
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Problems solved by technology
[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a driving mechanism for lifting the presser foot to loosen the thread and threading in the sewing machine and a sewing machine, which are used to solve the problem of driving the thread loosening and threading and the loosening of the presser foot in the prior art. The mechanism structure of the line is complex and difficult to install
Method used
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[0035] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0036] see Figure 1 to Figure 4 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. within the scope covered by the disclosed technical content. At the same ti...
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The invention provides a driving mechanism for lifting a presser foot, slacking a thread and knotting the thread in a sewing machine and the sewing machine. The driving mechanism comprises a driving motor and a thread slackening shaft in drive connection with the driving motor; a presser foot lifting driving component connected with a presser foot lifting component and comprising a presser foot lifting driving rod and a presser foot lifting driving piece which are slidably connected, wherein the presser foot lifting driving rod is fixedly connected with the thread slackening shaft and the presser foot lifting driving piece is connected with the presser foot lifting component; and a thread slackening driving piece connected with a thread slackening and knotting component, wherein the thread slackening driving piece is connected with the thread slackening shaft. By using one power source, i.e., the driving motor, the driving mechanism is simplified and the driving motor can more accurately control the movement position, such that thread knotting and slackening actions and presser foot lifting and thread slackening actions are more accurate and the adjustment is more convenient to perform.
Description
technical field [0001] The invention relates to the technical field of sewing machines, in particular to a driving mechanism for lifting a presser foot in a sewing machine for loosening and threading, and a sewing machine. Background technique [0002] After the existing interlock sewing machine stops the needle, two power sources are required for thread punching and thread loosening and presser foot lifting and thread loosening. One power source is driven to complete thread punching and thread loosening, and the other power source is driven to complete presser foot lifting. And loosen the thread. Control the two independent power sources through electronic control to perform matching actions to realize the mutual combination of functional actions, so as to realize two sets of series: after the sewing machine stops the needle, it can perform thread punching and thread loosening, presser foot lifting and thread loosening, and simple presser foot lifting and thread loosening ...
Claims
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IPC IPC(8): D05B29/02D05B47/04D05B69/10
CPCD05B29/02D05B47/04D05B69/10
Inventor 李佐时谈安定李卫超王名科
Owner JACK SEWING MASCH CO LTD