CN217124305U - High-quality packaging paper offset printing device - Google Patents
High-quality packaging paper offset printing device Download PDFInfo
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- CN217124305U CN217124305U CN202123277021.2U CN202123277021U CN217124305U CN 217124305 U CN217124305 U CN 217124305U CN 202123277021 U CN202123277021 U CN 202123277021U CN 217124305 U CN217124305 U CN 217124305U
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- roller
- blanket cylinder
- wetting
- wiping
- drying
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Abstract
The utility model discloses a high quality packing paper offset printing device, including blanket cylinder, the blanket cylinder below is the printing paper, and the top of blanket cylinder is for connecing the china ink district, still includes wiping mechanism and moist mechanism, wiping mechanism is located one side that blanket cylinder leaves the printing paper, wiping mechanism includes wiping roller and wringing roller, and the surface cladding of wiping roller has first water absorbing layer wiping roller and wringing roller below be provided with and connect the cistern, and wiping roller supports on blanket cylinder, and wringing roller is located wiping roller below and supports on wiping roller; wetting mechanism is located blanket cylinder and leaves one side of printing paper to it is located the place ahead of wiping dry mechanism, wetting mechanism includes dampening roller and reservoir, and the dampening roller surface is provided with the second layer that absorbs water, the bottom of dampening roller is soaked in the reservoir, and the dampening roller supports on blanket cylinder, is provided with the washing liquid in the reservoir, the utility model discloses can keep blanket cylinder surface clean, improve printing quality, reduce and maintain the frequency.
Description
Technical Field
The utility model belongs to the technical field of offset press, more specifically the utility model relates to a high quality packaging paper offset printing device that says so.
Background
The offset press is one kind of lithographic printing machine, during printing, the printed picture and text are first printed onto rubber cylinder from the printing plate and then transferred to paper with the rubber cylinder, and the offset press may be single color, double color, four color and multiple color based on the number of printed colors completed by one paper feeding, small offset press, six-opening, four-opening, split and full-sheet printing press based on the maximum paper breadth, and double-sided printing press capable of completing two-sided printing simultaneously with one paper feeding.
The blanket cylinder continuously transfers the ink to the paper, partial ink is often left in the transfer process, particularly when the ink is thin and the water absorption of the paper is poor, impurities on the surface of the paper can be adsorbed and carried in the transfer process, so that the surface of the blanket cylinder cannot be kept clean for a long time, and the shutdown maintenance frequency is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a can in time wash to the nonabsorbent ink in blanket cylinder surface and wipe, avoid mixing together with subsequent printing ink, keep the clean on blanket cylinder surface, improve printing quality, reduce the maintenance frequency.
In order to achieve the above purpose, the utility model provides a following technical scheme: a high-quality packaging paper offset printing device comprises a rubber cylinder, printing paper is arranged below the rubber cylinder, the top of the rubber cylinder is an ink receiving area, the high-quality packaging paper offset printing device further comprises a wiping mechanism and a wetting mechanism, the wiping mechanism is positioned on one side, away from the printing paper, of the rubber cylinder, the wiping mechanism comprises a wiping roller and a squeezing roller, the surface of the wiping roller is coated with a first water absorbing layer, liquid receiving grooves are formed below the wiping roller and the squeezing roller, the wiping roller abuts against the rubber cylinder, and the squeezing roller is positioned below the wiping roller and abuts against the wiping roller; the wetting mechanism is positioned on one side, away from the printing paper, of the blanket cylinder and is positioned in front of the wiping mechanism, the wetting mechanism comprises a wetting roller and a liquid storage tank, a second water absorbing layer is arranged on the surface of the wetting roller, the bottom of the wetting roller is immersed in the liquid storage tank, the wetting roller abuts against the blanket cylinder, and cleaning liquid is arranged in the liquid storage tank.
The wiping roller is opposite to the rotation direction of the rubber roller, and the linear velocity of the surface of the wiping roller is smaller than that of the surface of the rubber roller.
The wetting mechanism further comprises a humidity control roller, the humidity control roller is positioned between the wetting roller and the rubber roller after the wetting roller leaves the liquid storage tank, and the humidity control roller is pressed against the wetting roller.
Further the minimum distance of the axis of the dampening roller to the surface of the moisture control roller is less than the minimum distance to the surface of the blanket cylinder.
Further the dampening roller is connected with a motor.
Further dampening unit department still is provided with the mount, is provided with the adjustment tank of bar on the mount, and the adjustment tank level is horizontal, the axle of dampening roller stretches into to the adjustment tank in, and is provided with the adjustment mechanism who connects the dampening roller on the mount.
Further the adjustment mechanism comprises a linear motor.
Compared with the prior art, the beneficial effects of the utility model are that: when the offset press runs and finishes one-to-one printing, the surface of the blanket cylinder contacts the wetting mechanism, the wetting mechanism conveys cleaning liquid to the surface of the blanket cylinder, the residual ink and carried impurities on the surface of the blanket cylinder are wetted and even dissolved, and then the surface of the blanket cylinder reaches the wiping mechanism to be cleaned, so that the surface of the blanket cylinder is clean after leaving the wiping mechanism, the subsequent printing quality is high, and the shutdown cleaning maintenance frequency is greatly reduced.
Drawings
FIG. 1 is a schematic structural view of the high-quality packaging paper offset printing device of the present invention;
fig. 2 is a schematic structural diagram of the middle moistening mechanism of the present invention.
Reference numerals: 1. a blanket cylinder; 21. wiping the roller; 211. a first water absorption layer; 22. a wringing roller; 23. a liquid receiving tank; 31. a dampening roller; 311. a second water-absorbing layer; 32. a humidity control roller; 33. A liquid storage tank; 4. paper; 5. a fixed mount; 51. an adjustment groove; 6. a linear motor.
Detailed Description
An embodiment of the high-quality packing paper offset printing apparatus of the present invention will be further described with reference to fig. 1 and 2.
In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.
A high-quality packaging paper offset printing device comprises a rubber cylinder 1, printing paper 4 is arranged below the rubber cylinder 1, the top of the rubber cylinder 1 is provided with an ink receiving area, the high-quality packaging paper offset printing device further comprises a wiping mechanism and a wetting mechanism, the wiping mechanism is positioned on one side, away from the printing paper 4, of the rubber cylinder 1, the wiping mechanism comprises a wiping roller 21 and a squeezing roller 22, the surface of the wiping roller 21 is coated with a first water absorbing layer 211, a liquid receiving groove 23 is arranged below the wiping roller 21 and the squeezing roller 22, the wiping roller 21 abuts against the rubber cylinder 1, and the squeezing roller 22 is positioned below the wiping roller 21 and abuts against the wiping roller 21; the wetting mechanism is positioned on one side of the blanket cylinder 1 away from the printing paper 4 and is positioned in front of the wiping mechanism, the wetting mechanism comprises a wetting roller 31 and a liquid storage tank 33, the surface of the wetting roller 31 is provided with a second water absorption layer 311, the bottom of the wetting roller 31 is immersed in the liquid storage tank 33, the wetting roller 31 abuts against the blanket cylinder 1, and cleaning liquid is arranged in the liquid storage tank 33.
As shown in fig. 1, the blanket cylinder 1 rotates counterclockwise in this embodiment, the sheet 4 moves right-left-right, and the wiping mechanism is located on the right side of the blanket cylinder 1.
The first water absorbing layer 211 can be a non-woven fabric structure, during the printing process, the part which leaves the paper 4 after printing reaches the wiping roller 21 and contacts with the first water absorbing layer 211, the first water absorbing layer 211 absorbs the ink on the surface of the blanket cylinder 1, the ink absorbed in the first water absorbing layer 211 is extruded to the liquid receiving tank 23 through the extruding roller 22 and stored, and the liquid receiving tank 23 can be led out to a designated container for collection, so that the surface of the blanket cylinder 1 is clean; the second water absorbing layer 311 may be made of a non-woven fabric, the thickness of the second water absorbing layer 311 may be larger than that of the first water absorbing layer 211, the wetting roller 31 absorbs the cleaning liquid from the liquid storage tank 33, and then the cleaning liquid is smeared on the surface of the blanket cylinder 1, so that ink and impurities on the surface of the blanket cylinder 1 are wetted and even dissolved, the use of the cleaning liquid can be changed according to actual conditions, and the surface of the blanket cylinder 1 can be cleaned more smoothly by the subsequent wiping roller 21.
The preferred drying roller 21 of this embodiment is connected with a motor, more specifically, the drying roller 21 is opposite to the rotation direction of the blanket cylinder 1, and the linear velocity of the surface of the drying roller 21 is smaller than that of the blanket cylinder 1.
As shown in fig. 1, the blanket cylinder 1 rotates counterclockwise, and the wiping roller 21 rotates clockwise, so that the linear velocity of the wiping roller 21 is slightly lower than that of the blanket cylinder 1, and thus the wiping roller 21 forms slow sliding friction on the surface of the blanket cylinder 1, and the wiping effect is improved.
Of course, in this embodiment, the linear velocity of the surface of the drying roller 21 may be greater than the linear velocity of the surface of the blanket cylinder 1, which is more suitable for actively wiping off the impurities on the surface of the blanket cylinder 1 when the impurities on the surface of the blanket cylinder 1 are more.
The preferred dampening mechanism of this embodiment also includes a moisture control roller 32, the moisture control roller 32 being located between the dampening roller 31 leaving the reservoir 33 and reaching the blanket cylinder 1, the moisture control roller 32 resting on the dampening roller 31.
After the second water-absorbing layer 311 of the dampening roller 31 absorbs the cleaning solution, it firstly passes through the humidity control roller 32, the humidity control roller 32 collects the liquid of the second water-absorbing layer 311, and extrudes part of the cleaning solution on the surface of the second water-absorbing layer to flow back into the liquid storage tank 33, so as to prevent the saturated and absorbed second water-absorbing layer 311 from directly contacting the blanket cylinder 1, and prevent part of the cleaning solution from being extruded to flow down along the blanket cylinder 1 when contacting the blanket cylinder 1.
The preferred minimum distance from the axis of the dampening roller 31 to the surface of the moisture control roller 32 is less than the minimum distance from the axis of the dampening roller to the surface of the blanket cylinder 1.
As shown in fig. 2, the hatched portion a is the area where the dampening roller 32 presses the dampening roller 31, and the hatched portion b is the area where the blanket cylinder 1 presses the dampening roller 31, so as to ensure that the cleaning solution on the second water-absorbing layer 311 does not form a flowing state on the blanket cylinder 1.
The wetting roller 31 is preferably connected with a motor, and the wetting roller 31 is actively driven to rotate by the motor, so that the wetting roller 31 which deforms due to extrusion can be prevented from being difficult to rotate, and the cleaning liquid can be smoothly transferred to the blanket cylinder 1.
In the preferred embodiment, a fixing frame 5 is further provided at the wetting mechanism, a strip-shaped adjusting groove 51 is provided on the fixing frame 5, the adjusting groove 51 is horizontally arranged, the shaft of the wetting roller 31 extends into the adjusting groove 51, and an adjusting mechanism connected with the wetting roller 31 is provided on the fixing frame 5; the adjusting mechanism comprises a linear motor 6.
The position of the dampening roller 31, and in particular the degree of contact of the blanket cylinder 1 with the second water-absorbent layer 311, can be adjusted by the adjustment mechanism, thereby changing the amount of cleaning solution that can be transferred to the blanket cylinder 1.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.
Claims (8)
1. The utility model provides a high quality wrapping paper offset printing device, includes blanket cylinder, and the blanket cylinder below is printing paper, and blanket cylinder's top is for connecing black zone, its characterized in that: the printing paper drying device is characterized by further comprising a drying mechanism and a wetting mechanism, wherein the drying mechanism is positioned on one side, away from printing paper, of the rubber roller, the drying mechanism comprises a drying roller and a squeezing roller, the surface of the drying roller is coated with a first water absorbing layer, a liquid receiving groove is arranged below the drying roller and the squeezing roller, the drying roller abuts against the rubber roller, and the squeezing roller is positioned below the drying roller and abuts against the drying roller; the wetting mechanism is positioned on one side, away from the printing paper, of the blanket cylinder and is positioned in front of the wiping mechanism, the wetting mechanism comprises a wetting roller and a liquid storage tank, a second water absorbing layer is arranged on the surface of the wetting roller, the bottom of the wetting roller is immersed in the liquid storage tank, the wetting roller abuts against the blanket cylinder, and cleaning liquid is arranged in the liquid storage tank.
2. The high-quality wrapping paper offset printing device according to claim 1, characterized in that: the wiping roller is connected with a motor.
3. The high quality wrapping paper offset printing apparatus of claim 2 wherein: the rotation directions of the drying roller and the rubber roller are opposite, and the linear velocity of the surface of the drying roller is smaller than that of the surface of the rubber roller.
4. The high-quality wrapping paper offset printing apparatus according to claim 1, characterized in that: the wetting mechanism also comprises a humidity control roller, the humidity control roller is positioned between the wetting roller and the rubber roller after the wetting roller leaves the liquid storage tank, and the humidity control roller is pressed against the wetting roller.
5. The high-quality wrapping paper offset printing apparatus according to claim 4, characterized in that: the minimum distance from the axis of the dampening roller to the surface of the moisture control roller is less than the minimum distance from the axis of the dampening roller to the surface of the blanket cylinder.
6. The high-quality wrapping paper offset printing apparatus according to claim 5, characterized in that: the wetting roller is connected with a motor.
7. The high-quality wrapping paper offset printing apparatus according to claim 6, characterized in that: the dampening mechanism is characterized in that a fixing frame is further arranged at the position of the dampening mechanism, a strip-shaped adjusting groove is formed in the fixing frame, the adjusting groove is horizontally arranged, a shaft of the dampening roller extends into the adjusting groove, and an adjusting mechanism connected with the dampening roller is arranged on the fixing frame.
8. The high-quality wrapping paper offset printing apparatus according to claim 7, wherein: the adjusting mechanism comprises a linear motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123277021.2U CN217124305U (en) | 2021-12-23 | 2021-12-23 | High-quality packaging paper offset printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123277021.2U CN217124305U (en) | 2021-12-23 | 2021-12-23 | High-quality packaging paper offset printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217124305U true CN217124305U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123277021.2U Active CN217124305U (en) | 2021-12-23 | 2021-12-23 | High-quality packaging paper offset printing device |
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| Country | Link |
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| CN (1) | CN217124305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228312A (en) * | 2021-12-23 | 2022-03-25 | 平湖安得利包装有限公司 | Offset printing device of offset printing machine |
-
2021
- 2021-12-23 CN CN202123277021.2U patent/CN217124305U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228312A (en) * | 2021-12-23 | 2022-03-25 | 平湖安得利包装有限公司 | Offset printing device of offset printing machine |
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