Printing plate clamping device for sheet-fed printing press
A technology of clamping device and printing machine, which is applied to the general parts of printing machinery, printing machines, printing, etc. It can solve the problems of difficult to realize automatic splint, reduce the friction force of inclined block, and high maintenance cost, so as to save the lubrication link , reduce friction and wear, and simplify the structure
Inactive Publication Date: 2011-12-21
GOSS GRAPHIC PRINTING SYST CHINA
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Problems solved by technology
In order to reduce the friction between the inclined blocks, a linear bearing is added in the middle, which makes the structure of this mechanism complicated.
And because of the use of bearings, the sliding friction becomes rolling friction, and the friction force becomes smaller, which also brings problems such as lubrication and corrosion caused by the infiltration of lubricating fluid in actual printing work, so the maintenance cost is very high , it is also difficult to realize automatic splinting
Method used
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Embodiment Construction
[0016] In order to better understand the technical solution of the present invention, it will be described in detail below through specific embodiments in conjunction with the accompanying drawings:
[0017] see figure 1 and figure 2 , the present invention is used for the printing plate clamping device of sheet-fed printing machine, comprises lower splint 1, an upper splint 2 and a transmission mechanism, wherein:
[0018] The lower splint 1 is fixed on the printing plate cylinder of the printing machine, a card slot 11 is axially opened on the upper rear end surface of the lower splint 1, and a mandrel installation groove 12 is axially opened on the middle rear end surface of the lower splint 1;
[0019] An arc-shaped long groove is axially provided on the rear lower end surface of the upper splint 2; a flange matching the slot 11 on the lower splint 1 is axially provided on the middle lower end surface of the upper splint 2, so that the upper splint The flange on 2 is ro...
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The invention discloses a printing plate clamping device for a sheet-fed printing press. The printing plate clamping device comprises a lower clamping plate, an upper clamping plate and a transmission mechanism, wherein the lower clamping plate is fixed on a plate cylinder of the printing press; the lower end face of the rear of the upper clamping plate is axially provided with an arc elongated slot; the lower end face of the middle of the upper clamping plate is axially provided with a flange matched with a clamping groove on the lower clamping plate, so that the flange of the upper clamping plate is rotationally embedded in the clamping groove on the lower clamping plate to serve as a rotating pivot of the upper clamping plate; the transmission mechanism comprises a four bar mechanism consisting of a rocking leg, a mandril, a link and the rotating pivot of the upper clamping plate; one end of the rocking leg is fixedly connected with the mandril; the mandril is rotationally arranged in a mandril mounting groove of the lower clamping plate axially; the outer surface of the mandril is axially provided with an arc elongated slot; and upper and lower ends of the link are provided with arc heads, so that the arc heads at the upper and lower ends of the link are rotationally embedded in the elongated slots of the upper clamping plate and the mandril to form rotating pivots of the upper and lower ends of the link.
Description
technical field [0001] The invention relates to a mechanism on a printing machine, in particular to a printing plate clamping device for a sheet paper printing machine. Background technique [0002] Usually, in the printing plate clamping device of a sheet-fed printing machine, when the power is supplied pneumatically or manually, the force is transmitted through the action of a transmission mechanism, so that the upper and lower splints are closed to bite the sandwiched printing plate , the printing plate is fixed. In the existing printing plate clamping device, the transmission mechanism includes a gear and a rack, and then the displacement direction is changed through the relative movement of the inclined blocks to realize the closing of the upper and lower splints. In order to reduce the friction between the inclined blocks, a linear bearing is added in the middle, which makes the structure of this mechanism complicated. And because of the use of bearings, the sliding ...
Claims
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Inventor 金莉莉刘忠荣
Owner GOSS GRAPHIC PRINTING SYST CHINA