Air-cylinder-rod and rotating-shaft connecting structure of sewing-machine pressing rotating mechanism
A technology that compresses, rotates, and connects structures. It is applied to sewing machine components, sewing machine control devices, and cloth feeding mechanisms. It can solve problems such as inconvenient installation and debugging, shortened cylinder life, and piston damage, and achieve motion and force transmission. Smooth, extended service life, reliable connection effect
Pending Publication Date: 2019-05-21
FOSHAN POLYTECHNIC
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Problems solved by technology
This connection structure has extremely high requirements on the machining accuracy of the cylinder mounting plate, cylinder, rotating shaft and other parts. If the production accuracy of one part is not up to standard, it will cause the whole mechanism to be stuck and suffocated. It is very inconvenient and difficult to install and debug. Reliable; in addition, the rotating shaft in this structure will drive the cylinder rod, cylinder rod and piston to rotate together, which will make the piston in the cylinder easily damaged in the rotating friction, greatly shortening the service life of the cylinder
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[0029] In the description of the present invention, it should be noted that for orientation words, such as the term "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower" , "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise " and other indication orientations and positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or in a specific orientation. The structure and operation should not be construed as limiting the specific protection scope of the present invention.
[0030] In addition, terms such as "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying rela...
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The invention discloses an air-cylinder-rod and rotating-shaft connecting structure of a sewing-machine pressing rotating mechanism. The air-cylinder-rod and rotating-shaft connecting structure is characterized in that a first connecting shaft and a second connecting shaft are rotationally installed on a connecting block assembly and used for being connected with an air cylinder rod and a rotatingshaft respectively, the head of the first connecting shaft and the head of the second connecting shaft mutually abut against to form a pressing-contact and rotating-separation structure. According tothe air-cylinder-rod and rotating-shaft connecting structure, the two axial-pressing-contact and radial-rotating-separation connecting shafts are framed by the connecting block assembly, and the twoconnecting shafts are connected with the air cylinder rod and the rotating shaft respectively; when the air-cylinder-rod and rotating-shaft connecting structure is used, combined with an air-cylinder-rod anti-rotating air cylinder, axial stretching movement and force can be transferred, rotating separation of the rotating shaft and the air cylinder rod can also be achieved during circumferential rotating movement, the air cylinder rod cannot be driven to rotate together accordingly, rotating abrasion of an air-cylinder piston is avoided, and the service life of the air cylinder is prolonged.
Description
technical field [0001] The invention relates to the technical field of sewing equipment, in particular to a connection structure between a cylinder rod and a rotating shaft of a pressing and rotating mechanism of a sewing machine. Background technique [0002] In the sewing industry, with the continuous increase of labor costs, in order to save costs, the requirements for the degree of automation of the machine are getting higher and higher. Fully automatic machines with automatic feeding, automatic sewing and automatic receiving have been designed and produced. There are also various automatic feeding mechanisms, such as wheel-assisted feeding, template frame clamping cloth feeding, and manipulator feeding. For the automatic all-around hemming sewing of towels, square scarves, and mouse pads, a pressing and rotating mechanism is used to clamp and rotate the sewing material. [0003] For example, a Chinese utility model patent with a patent number of 201720787761.5 disclose...
Claims
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IPC IPC(8): D05B35/00D05B69/08
Inventor 李秀忠刘艳肖剑兰
Owner FOSHAN POLYTECHNIC