A kind of printing machine for steel plate printing
Technical field
The present invention relates to a kind of printing machine for steel plate printing, belong to steel plate printing processing technique field.
Background technology
In prior art, the technical process of steel plate printing processing is mainly: first carry out surface treatment to steel plate, then requires coating ink according to pattern, dries and cured printing ink finally by drying plant.Wherein the operation of surface of steel plate coating fixed pattern decorative pattern ink is particularly crucial, its particularly technical process see steel plate printing machine disclosed in steel plate printing color-coating continuous production line disclosed in Chinese patent literature CN 103332004 A and Chinese patent literature CN 208248293 U, can mainly comprise frame, graining roll, transfer roll, backing roll, carrying roller and scraper plate; Graining roll, transfer roll, backing roll, carrying roller and scraper plate are arranged in frame, and graining roll is parallel with transfer roll to be installed side by side, and backing roll is arranged on below transfer roll, the some carrying rollers of the parallel installation in backing roll both sides; Scraper plate is arranged on above graining roll.
In above-mentioned printing inks coating operation process, need to apply ink constantly on graining roll, strike off excessive ink by scraper plate, then by the contact of graining roll and transfer roll, the ink on graining roll is coated on transfer roll, then is printed on surface of steel plate by transfer roll; When the kinematic viscosity of the ink that graining roll applies is less time, then ink is easier to the excessive situation of coating occurs, and reduces the delivery rate of ink simply, then the situation likely causing local ink deficiency to cause biting occurs; And ink excessive time scraper plate on be easier to put aside ink, therefore need to reclaim in case the excessive pollution operating environment of ink, printing equipment and printed steel plate, but contain a large amount of volatile solvents in ink on the other hand, therefore ink scraper plate put aside is easier to dry deposition and forms ink patch, not only be difficult to the consumption clearing up but also add ink, the scraper plate made needs timing to change and cleansing oil ink speck block, have impact on operating efficiency and adds labour intensity.
Summary of the invention
The present invention is just for the deficiency that prior art exists, a kind of printing machine for steel plate printing is provided, can more equably at graining roll surface coating printing ink, reduce ink and apply excessive degree, and ink can be reclaimed constantly, reduce the degree that ink setting forms patch, thus reduce the operating frequency of drag flight descaling operation, to improve the utilization rate of ink, and improve operating efficiency, reduction efficiency, meet actual operation requirements.
For solving the problem, the technical solution used in the present invention is as follows:
A kind of printing machine for steel plate printing, comprise frame, with to be arranged in described frame and the axis graining roll, transfer roll, backing roll, the carrying roller that are parallel to each other, for placing steel plate above described carrying roller and described backing roll, described carrying roller is several and is arranged at described backing roll both sides, described graining roll and described transfer roll tangent, described transfer roll and steel plate end face tangent and be positioned at above described backing roll, be provided with print cartridge and scraper plate above described graining roll; It is characterized in that:
Described print cartridge comprises housing and porous moisture absorption medium, and described housing bottom is provided with slit, and described porous moisture absorption medium upper end is positioned at described housing, and it is outer and contact described graining roll surface that described porous moisture absorption medium lower end is positioned at described housing through described slit;
Described scraper plate is provided with the ink collection gutter being parallel to described graining roll axis, and described ink collection gutter two ends are provided with ink returnable, is provided with the incremental pipe of ink above described ink collection gutter.
Described porous moisture absorption medium can be, but not limited to be the pore solid materials such as the fabric such as plastic foam material, Nomex, active carbon such as sponge particularly.
As the improvement of technique scheme, described ink returnable connects described print cartridge by pipeline, and the incremental pipe of described ink connects ink containment container by pipeline.
As the improvement of technique scheme, be provided with hydraulic pump between described ink returnable and described print cartridge, the inwall bottom level of described ink containment container is higher than the incremental pipe floor height of described ink.Described hydraulic pump can be, but not limited to be gear pump, plunger displacement pump, screw pump or vane pump particularly.
As the improvement of technique scheme, also comprise rotation adjusting lever, described print cartridge and described scraper plate are all arranged on described rotation adjusting lever, and described rotation adjusting lever one end is fixedly installed by rotating shaft, described rotating shaft position is fixed relative to described frame, the described rotation adjusting lever other end is provided with screw thread and coordinates the adjusting nut of described screw thread, described print cartridge to be arranged between described rotating shaft and described adjusting nut and to be positioned at directly over described graining roll axle center, described rotation adjusting lever is provided with sleeve pipe, described scraper plate is fixedly arranged on described sleeve bottom, described sleeve pipe is between described print cartridge and described adjusting nut, spring is provided with between described sleeve pipe and described adjusting nut.
As the improvement of technique scheme, described spring housing is loaded on described rotation adjusting lever.
As the improvement of technique scheme, described print cartridge comprises two sidewalls, the gap of two described sidewall upper is greater than the gap of lower end, and the gap of two described side wall lower ends is described slit, two described sidewall upper are provided with installation projection, described rotation adjusting lever are provided with two mounting grooves coordinating two described installation projections respectively.
As the improvement of technique scheme, also comprise ink set mounting rod, described rotating shaft, described ink returnable, described hydraulic pump and described ink containment container are all arranged on described ink set mounting rod, and be provided with collecting tray between described ink collection gutter two ends and described ink returnable, described collecting tray is two and is arranged at the two ends of described graining roll respectively, one end that described collecting tray height is higher is positioned at the below of described ink collection gutter end, and one end that described collecting tray height is lower is positioned at above described ink returnable.
Compared with prior art, implementation result of the present invention is as follows in the present invention:
A kind of printing machine for steel plate printing of the present invention, by arranging porous moisture absorption medium, can more equably at graining roll surface coating printing ink, reduce ink and apply excessive degree, and make ink circulates flow through ink collection gutter, ink can be reclaimed constantly, the ink setting reducing ink collection gutter place forms the degree of patch, thus reduce the operating frequency of drag flight descaling operation, to improve the utilization rate of ink, and improve operating efficiency, reduction efficiency, meet actual operation requirements.
Accompanying drawing explanation
Fig. 1 is a kind of printing machine structural representation for steel plate printing of the present invention;
Fig. 2 is the structure for amplifying schematic diagram at the rotation adjusting lever position in Fig. 1.
Detailed description of the invention
Below in conjunction with specific embodiments content of the present invention is described.
As depicted in figs. 1 and 2, be a kind of printing machine structural representation for steel plate printing of the present invention.A kind of printing machine for steel plate printing of the present invention, comprise frame 1, with to be arranged in described frame 1 and the axis graining roll 2, transfer roll 3, backing roll 4, the carrying roller 5 that are parallel to each other, for placing steel plate 6 above described carrying roller 5 and described backing roll 4, described carrying roller 5 is several and is arranged at described backing roll 4 both sides, described graining roll 2 is tangent with described transfer roll 3, described transfer roll 3 is tangent and be positioned at above described backing roll 4 with steel plate 6 end face, is provided with print cartridge 7 and scraper plate 8 above described graining roll 2;
Described print cartridge 7 comprises housing 71 and porous moisture absorption medium 72, slit 73 is provided with bottom described housing 71, described porous moisture absorption medium 72 upper end is positioned at described housing 71, and it is outer and contact described graining roll 2 surface that described porous moisture absorption medium 72 lower end is positioned at described housing 71 through described slit 73; Described print cartridge 7 comprises two sidewalls, the gap of two described sidewall upper is greater than the gap of lower end, and the gap of two described side wall lower ends is described slit 73, two described sidewall upper are provided with installs projection 75, described rotation adjusting lever 9 is provided with two mounting grooves 95 coordinating two described installation projections 75 respectively.Described structure is convenient to the installation and removal of described print cartridge 7, thus is convenient to the black block of deposition in clean print cartridge and changes described porous moisture absorption medium 72.
Described scraper plate 8 is provided with the ink collection gutter 81 being parallel to described graining roll 2 axis, and described ink collection gutter 81 two ends are provided with ink returnable 82, is provided with the incremental pipe 83 of ink above described ink collection gutter 81.Described ink returnable 82 connects described print cartridge 7 by pipeline, and the incremental pipe 83 of described ink connects ink containment container 84 by pipeline.Hydraulic pump 74 is provided with between described ink returnable 82 and described print cartridge 7, the inwall bottom level of described ink containment container 84 is higher than described ink incremental pipe 83 floor height, and described structure makes the ink in described ink containment container 84 carry in the incremental pipe 83 of ink described in trend by law of connected vessels.
Also comprise rotation adjusting lever 9, described print cartridge 7 and described scraper plate 8 are all arranged on described rotation adjusting lever 9, and described rotation adjusting lever 9 one end is fixedly installed by rotating shaft 91, described rotating shaft 91 position is fixed relative to described frame 1, described rotation adjusting lever 9 other end is provided with screw thread and coordinates the adjusting nut 92 of described screw thread, described print cartridge 7 to be arranged between described rotating shaft 91 and described adjusting nut 92 and to be positioned at directly over described graining roll 2 axle center, described rotation adjusting lever 9 is provided with sleeve pipe 93, described scraper plate 8 is fixedly arranged on bottom described sleeve pipe 93, described sleeve pipe 93 is between described print cartridge 7 and described adjusting nut 92, spring 94 is provided with between described sleeve pipe 93 and described adjusting nut 92.Described spring 94 is set on described rotation adjusting lever 9.Described structure can regulate the contact stress of described scraper plate 8 and described graining roll 2 by described adjusting nut 92, thus convenient operation personnel optimize the contact stress of described scraper plate 8 and described graining roll 2 according to actual needs.
Also comprise ink set mounting rod 10, described rotating shaft 91, described ink returnable 82, described hydraulic pump 74 and described ink containment container 84 are all arranged on described ink set mounting rod 10, and be provided with collecting tray 85 between described ink collection gutter 81 two ends and described ink returnable 82, described collecting tray 85 is two and is arranged at the two ends of described graining roll 2 respectively, one end that described collecting tray 85 is highly higher is positioned at the below of described ink collection gutter 81 end, and one end that described collecting tray 85 is highly lower is positioned at above described ink returnable 82.
During work, ink is added in described ink containment container 84, ink in described ink containment container 84 flow in the ink collection gutter 81 of described scraper plate 8 by the incremental pipe of described ink 83, enter described ink returnable 82 by described collecting tray 85 from described ink collection gutter 81 again, the ink in described ink returnable 82 is made to enter in described print cartridge 7 by the effect of hydraulic pump 74, described porous moisture absorption medium 72 upper end is coated to described graining roll 2 from lower end after absorbing ink.
Above content is detailed description made for the present invention in conjunction with specific embodiments, can not assert that the present invention specifically implements to be only limitted to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to the scope of protection of the invention.