Structure high speed zigzag stitch industrial-use sewing machine

An improved structure high speed zigzag stitch industrial-use sewing machine consisting of a pattern cam situated inside the head section of a sewing machine that controls the transverse motion of a needle holder and, furthermore, a material feed needle plate platform structure disposed at the bottom panel of the said sewing machine, and situated in the interior section of the said material feed needle plate platform is a dog base plate which facilitates the installation of a material feed dog at the top section of the said dog base plate, and since one end of the said dog base plate is conjoined to an eccentric shaft at the tail end of a lower drive shaft of the bottom panel and the other end is conjoined to a rocker arm, when the said lower drive shaft of the bottom panel rotates, this initiates the movement of the said dog base plate and, furthermore, the material feed action of a press foot at the upper extent of the said material feed needle plate platform, and a revolving shuttle connected to a drive mechanism spins along with the rotating said lower drive shaft, while facilitating the descension of the said needle holder, such that the thread at the inner section of the said revolving shuttle and a needle at the bottom end of the said needle holder is manipulated in a stitching routine that achieves the sewing of an object being processed, the innovations of which include:

• a main drive shaft of the said sewing machine disposed at a high position at the center section of the sewing machine and, furthermore, two belts respectively utilized to drive an upper drive shaft of the said needle holder and the said lower drive shaft of the said revolving shuttle, enabling the entire said sewing machine to have an appropriate height such that the said material feed needle plate platform can be elevated under the said needle;
• additionally, extending upward from the top section of the said dog base plate is a vertical base plate and, furthermore, a vertically oriented slot is formed in the center section of the said vertical base plate and a horizontally oriented slot is formed in bottom section of the said vertical base plate, with a sliding block situated in each of the said vertically oriented and said horizontally oriented slot, respectively, such that the said vertical base plate is capable of sliding upward and downward as well as swing transversely rightward and leftward following the articulation of the said sliding blocks and the said slots;
• finally, the said material feed dog is installed at the top section of the said vertical base plate and when the said dog base plate moves, the said vertical base plate moves along with it synchronously, thereby enabling the said material feed dog at the top section to complete a zigzag stitch as the material is being fed through;
• additionally, in the interior section of the said elevated material feed needle plate platform is a vertical drive shaft linked to the said drive mechanism of the bottom panel that transports the said revolving shuttle close to the lower position of the elevated said material feed needle plate platform (Post Bed) and, furthermore, in synchronization with the rotating said lower drive shaft.