Multi-rod type ink returning mechanism
Through the connecting rod structure design of the multi-bar ink return mechanism, the problem of uneven ink return caused by cylinder shock is solved, and a more stable ink return effect is achieved.
Patent Information
- Application Number
- CN202422740033.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-11-11
AI Technical Summary
In the existing ink return mechanism, the oscillation caused by the end buffer zone of the cylinder affects the ink return effect, resulting in uneven ink layer and empty bar problems.
The multi-bar ink return mechanism is adopted to convert the action of the cylinder into the swing of the connecting rod through the connecting rod structure to reduce the oscillation of the ink return knife, including the hinge point design of the ink return knife beam, the cutting head frame, the large rotating support, the small rotating support, the transverse connecting rod and the longitudinal connecting rod, reducing the cylinder pressure and improving stability.
The oscillation amplitude of the ink return knife is effectively reduced, and it is reduced from 0.1mm to 0.01mm, improving the stability and rigidity of the ink return, and ensuring the uniformity of the ink layer.
Smart Images
Figure CN223266468U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an ink return mechanism of a screen printing machine, in particular to a multi-rod type ink return mechanism. Background Art
[0002] In the screen printing process, ink return uniformity is a critical parameter, and the stability and uniformity of ink return directly affect the printing quality. In existing ink return mechanisms, the air cylinder directly drives the ink return blade. Because the tail end of the air cylinder has a certain buffer zone, when the air source pressure is unstable or the air cylinder is moving at high speed, it will cause a certain amount of vibration. This is directly reflected in the rise and fall of the ink return blade, affecting the ink return effect, resulting in an uneven ink layer and the problem of empty bars. Utility Model Content
[0003] In view of the technical problems existing in the background technology, the present invention aims to provide a multi-rod ink return mechanism, which reduces the vibration problem of the ink return knife caused by the air source or the cylinder through a connecting rod structure.
[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: the multi-rod ink return mechanism includes an ink return knife beam and a cutter head frame, the ink return knife beam is installed with an ink return knife, the cutter head frame is installed with a cylinder, the cylinder is transmission-connected to the ink return knife beam, and further includes a large rotating support, a small rotating support, a transverse connecting rod, a first longitudinal connecting rod and a second longitudinal connecting rod, the large rotating support is hinged to the output end of the cylinder, the cylinder is hinged to the cutter head frame, the large rotating support is hinged to the cutter head frame to form a first hinge point, and the small rotating support is hinged to the cutter head frame to form a second hinge point. Hinge point, one end of the transverse link is hinged to the large rotating support to form a third hinge point, the other end of the transverse link is hinged to the small rotating support to form a fourth hinge point, the line connecting the first hinge point and the third hinge point is parallel to the line connecting the second hinge point and the fourth hinge point and has equal length, one end of the first longitudinal link is hinged to the large rotating support at the third hinge point, the other end of the first longitudinal link is hinged to the ink return knife beam, one end of the second longitudinal link is hinged to the small rotating support at the fourth hinge point, and the other end of the second longitudinal link is hinged to the ink return knife beam.
[0005] In this scheme, the output end of the cylinder pushes the large rotating support to swing relative to the cutter head frame, and the large rotating support drives the small rotating support to swing relative to the cutter head frame through the transverse connecting rod. The first longitudinal connecting rod and the second longitudinal connecting rod are pulled together by the corresponding rotating support, driving the ink return knife beam and the ink return knife to rise and fall. The overall gravity of the ink return knife beam and the ink return knife is mainly borne by the cutter head frame, the required cylinder pressure is reduced, and the overlapping setting of the third hinge point and the fourth hinge point makes the structure compact and the layout reasonable.
[0006] Preferably, the ink return blade beam is equipped with a guide rod, and the blade head frame is equipped with a guide sleeve, and the guide sleeve cooperates with the guide rod.
[0007] In this solution, the guide rod and the guide sleeve cooperate to guide the lifting and lowering of the ink return knife beam.
[0008] Preferably, the line connecting the first hinge point and the second hinge point is parallel to a horizontal line, and the second longitudinal link is parallel to the first longitudinal link and has the same length as the first longitudinal link.
[0009] In this solution, the design ensures that the transverse connecting rod and the ink return knife beam are parallel to the horizontal line, and can remain horizontal during the lifting process, with good stability.
[0010] Preferably, during ink return, the first hinge point and the two ends of the first longitudinal link are located on the same straight line, and the second hinge point and the two ends of the second longitudinal link are located on the same straight line.
[0011] In this solution, the three points form a straight line, and the entire structure has the strongest rigidity and the best stability.
[0012] The beneficial effect of this utility model is that it replaces the direct cylinder drive with a connecting rod structure driven by the cylinder, which reduces the vibration problem of the ink return knife caused by the air source or the cylinder. Through the buffering of the connecting rod, the vibration amplitude can be reduced from 0.1mm to 0.01mm, and the rigidity is enhanced and the stability is improved. Therefore, compared with the existing technology, this utility model has substantial characteristics and improvements. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The following describes the relevant details and working principles of the implementation methods and embodiments of the present invention in conjunction with the accompanying drawings.
[0014] Figure 1 It is a structural diagram of the present utility model.
[0015] In the figure: 1. Ink return knife beam; 2. Ink return knife; 3. Cutter head frame; 4. Cylinder; 5. Large rotating support; 6. First hinge point; 7. Small rotating support; 8. Second hinge point; 9. Transverse connecting rod; 10. Third hinge point; 11. Fourth hinge point; 12. First longitudinal connecting rod; 13. Second longitudinal connecting rod; 14. Guide rod; 15. Guide sleeve. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the implementation of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0017] In the description of this application, it should be understood that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.
[0018] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
[0019] See attached Figure 1 In an embodiment of this embodiment, a multi-rod ink return mechanism includes an ink return knife beam and a cutter head frame. The ink return knife beam is equipped with an ink return knife, and the cutter head frame is equipped with a cylinder. The cylinder is transmission-connected to the ink return knife beam, the ink return knife beam is equipped with a guide rod, and the cutter head frame is equipped with a guide sleeve, and the guide sleeve cooperates with the guide rod.
[0020] Among them, it also includes a large rotating support, a small rotating support, a transverse connecting rod, a first longitudinal connecting rod and a second longitudinal connecting rod, the large rotating support is hinged to the output end of the cylinder, the cylinder is hinged to the cutter head frame, the large rotating support and the cutter head frame are hinged to form a first hinge point, the small rotating support and the cutter head frame are hinged to form a second hinge point, one end of the transverse connecting rod is hinged to the large rotating support to form a third hinge point, the other end of the transverse connecting rod is hinged to the small rotating support to form a fourth hinge point, the line connecting the first hinge point and the third hinge point is parallel to the line connecting the second hinge point and the fourth hinge point, and The lengths are equal, one end of the first longitudinal link is hinged to the large rotating support at the third hinge point, the other end of the first longitudinal link is hinged to the ink return knife beam, one end of the second longitudinal link is hinged to the small rotating support at the fourth hinge point, the other end of the second longitudinal link is hinged to the ink return knife beam, the line connecting the first hinge point and the second hinge point is parallel to the horizontal line, the second longitudinal link is parallel to the first longitudinal link and has the same length, when returning ink, the first hinge point and the two ends of the first longitudinal link are located on the same straight line, and the second hinge point and the two ends of the second longitudinal link are located on the same straight line.
[0021] In this embodiment, the output end of the cylinder pushes the large rotating support to swing relative to the cutter head frame, and the large rotating support drives the small rotating support to swing relative to the cutter head frame through the transverse connecting rod. The first longitudinal connecting rod and the second longitudinal connecting rod are lifted together by the corresponding rotating support, wherein the corresponding longitudinal connecting rod and the transverse connecting rod are hinged at the same point of the corresponding rotating support, and the line connecting the first hinge point and the second hinge point is parallel to the horizontal line. The second longitudinal connecting rod is parallel to the first longitudinal connecting rod and has the same length. The corresponding rotating support is responsible for lifting, and the transverse connecting rod does not provide longitudinal support force. The first longitudinal connecting rod and the second longitudinal connecting rod lift the ink return knife beam on the same horizontal line, and have good stability.
[0022] In other alternative embodiments, the first longitudinal link and the second longitudinal link can be connected to the transverse link, which requires high strength of the transverse link, or can be hinged at other points of the corresponding rotating support, and the line connecting the first hinge point and the second hinge point may not be parallel to the horizontal line.
[0023] The above is a preferred embodiment of the present invention. It should be noted that the scope of protection of the present invention is not limited thereto. Those skilled in the art will appreciate that improvements, modifications, or equivalent substitutions may be made without departing from the scope of the present invention and equivalent inventive concepts, and these are also considered to be within the scope of protection of the present invention.
Claims
1. A multi-rod ink return mechanism, comprising An ink return knife beam, on which an ink return knife is installed; A cutter head frame is provided with a cylinder, and the cylinder is in transmission connection with the ink return cutter beam; Its characteristics are: Also includes A large rotating support is hinged to the output end of the cylinder, the cylinder is hinged to the cutter head frame, and the large rotating support and the cutter head frame are hinged to form a first hinge point; A small rotating support, which is hinged to the cutter head frame to form a second hinge point; a transverse link, one end of which is hinged to the large rotating support to form a third hinge point, and the other end of which is hinged to the small rotating support to form a fourth hinge point, wherein a line connecting the first hinge point and the third hinge point is parallel to a line connecting the second hinge point and the fourth hinge point and has the same length; a first longitudinal connecting rod, one end of which is hinged to the large rotating support at the third hinge point, and the other end of which is hinged to the ink return blade beam; One end of the second longitudinal connecting rod is hinged to the small rotating support at the fourth hinge point, and the other end of the second longitudinal connecting rod is hinged to the ink return knife beam.
2. The multi-rod ink return mechanism according to claim 1, characterized in that: The ink return knife beam is equipped with a guide rod, and the cutter head frame is equipped with a guide sleeve, and the guide sleeve cooperates with the guide rod.
3. The multi-rod ink return mechanism according to claim 1, characterized in that: A line connecting the first hinge point and the second hinge point is parallel to a horizontal line, and the second longitudinal link is parallel to the first longitudinal link and has the same length as the first longitudinal link.
4. The multi-rod ink return mechanism according to claim 3, characterized in that: When returning ink The first hinge point and two ends of the first longitudinal link are located on the same straight line; The second hinge point and two ends of the second longitudinal link are located on the same straight line.