Planographic printing positioning device

A positioning device and lithographic printing technology, applied in transportation and packaging, object supply, pile separation, etc., can solve the problems of low pass rate, paper size difference, large scrap, etc., and achieve the effect of ensuring printing quality

CN106865289AInactive Publication Date: 2017-06-20天津市安德诺德印刷股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-06-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a positioning device for flat printing, which includes a machine platform with a groove in the middle, a center platform located in the groove, a vacuum generator, and a cylinder, the plane of the center platform is higher than the plane of the center platform, The upper surface of the center platform is provided with an adsorption hole connected with the vacuum generator, and guide frames are arranged along the length direction of the center platform on both sides of the center platform, and the inside of the guide frame is along the direction of the guide frame. A guide groove is provided in the length direction, the outer wall of the guide frame is connected to the cylinder, fixed plates parallel to each other are provided on both sides of the machine table, and a plurality of rotating rollers arranged up and down staggered are arranged between the fixed plates . The invention is provided with multiple positioning, which ensures the smoothness of the paper surface and the printing quality.
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Description

technical field

[0001] The invention relates to the technical field of printing equipment, in particular to a positioning device for flat printing. Background technique

[0002] In the multi-pass printing process of flatbed printing machines, positioning is the key to flat printing. Due to the difference in paper shape and size, and improper placement when leaning on the position, the scrap is relatively large, especially the more printing times, the lower the pass rate. A positioning device that can overcome the defects of the prior art is necessary. Contents of the invention

[0003] In order to solve the above technical problems, the technical solution provided by the present invention is: a positioning device for lithographic printing, including a machine table with a groove in the middle, a center table located in the groove, a vacuum generator, and a cylinder. The plane of the center platform is higher than the plane of the center platform, an adsorption hole connec...

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Embodiment Construction

[0015] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] like figure 1 , figure 2 As shown, a positioning device for lithographic printing includes a machine table 1 with a groove in the middle, a center table 2 located in the groove, a vacuum generator 4, and a cylinder 8. The plane of the center table 2 is higher than the The center platform 2 plane, the upper surface of the center platform 2 is provided with an adsorption hole 3 connected to the vacuum generator 4, and guide frames are provided on both sides of the center platform 2 along the length direction of the center platform 2 6. The inner side of the guide frame 6 is provided with a guide groove 7 along the length direction of the guide frame 6, the outer wall of the guide frame 6 is connected to the cylinder 8, and fixed parallel to each other is provided on both sides of the machine 1. Plates 11, and a plurality...