CN210501816U - Offset press for preventing printed matter from being damaged - Google Patents
Offset press for preventing printed matter from being damaged Download PDFInfo
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- CN210501816U CN210501816U CN201920813470.8U CN201920813470U CN210501816U CN 210501816 U CN210501816 U CN 210501816U CN 201920813470 U CN201920813470 U CN 201920813470U CN 210501816 U CN210501816 U CN 210501816U
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Abstract
The utility model relates to an offset press that prevents printing article damage, including multiunit printing roller set, printing roller set includes china ink roller set, water roller set, printing roller, rubber roller and impression roller, and the rubber roller respectively with printing roller and impression roller contact cooperation, is equipped with many transfer rollers that are used for carrying the printing article between the impression roller of two adjacent printing roller sets, and an at least impression roller rear side top is equipped with the UV lamp that is used for solidifying printing ink, its characterized in that: and an air blowing device blowing to the roller surface of the embossing roller is arranged above the rear side of the embossing roller and in front of the UV lamp. The offset press capable of preventing the printed products from being damaged can prevent the printed products from being scraped to the UV lamp, improve the qualified rate of the finished printed products and improve the production efficiency of the offset press.
Description
Technical Field
The utility model relates to an offset press especially relates to an offset press that prevents printing article damage.
Background
An offset printing machine is one of offset printing machines, and generally includes a plurality of sets of printing rollers according to printing processes and printing requirements, wherein each set of printing rollers includes an ink roller set, a water roller set, a printing plate roller, a rubber roller and a stamping roller. In printing, a plurality of ink rollers and a plurality of water rollers apply a printing pattern to a printing plate roller, and a rubber roller is brought into contact with and engaged with the printing plate roller and the impression roller, respectively, to transfer the printing pattern from the printing plate roller to a printing material (generally, paper). In the same roller group, the printing roller is used for transferring and supporting the printing product, and the printing product is conveyed between two adjacent printing roller groups through at least one conveying roller.
When an offset printing machine is used for printing certain printed products, certain special ink needs to be cured by a UV lamp (namely an ultraviolet lamp), namely after the special ink is transferred to a printed product, the special ink needs to be irradiated by the UV lamp to be hardened and fixed on the printed product. The UV lamp is usually installed at the embossing roller, but the printed matter is rapidly conveyed in a closed and narrow equipment space, so that the risk that the printed matter is scraped to a lamp holder of the UV lamp exists, ink on the surface of the printed matter is damaged when the ink touches the lamp holder of the UV lamp, and the final printing quality of the printed matter is influenced. On the other hand, the manufacturer has to reduce the speed of conveyance of the print to prevent the print from scratching the UV lamp base, but this reduces the printing efficiency of the print.
Disclosure of Invention
The utility model aims to solve the problem that an offset press that prevents the printing article damage is provided, this kind of offset press that prevents the printing article damage can prevent that the printing article from scraping to the UV lamp, improves the finished product qualification rate of printing article, can improve offset press's production efficiency again. The technical scheme is as follows:
the utility model provides an offset press that prevents printed matter damage, includes multiunit printing roller group, printing roller group is including china ink roller group, water roller group, version roller, rubber roller and impression roller, the rubber roller respectively with version roller and impression roller contact cooperation, be equipped with many transfer rollers that are used for carrying the printing matter between the impression roller of two adjacent printing roller groups, at least one impression roller rear side top is equipped with the UV lamp that is used for solidifying printing ink, its characterized in that: and an air blowing device blowing to the roller surface of the embossing roller is arranged above the rear side of the embossing roller and in front of the UV lamp.
The ink roller group comprises a plurality of ink rollers, the water roller group comprises a plurality of water rollers, the ink roller group and the water roller group coat the printing pattern on the printing plate roller, and the rubber roller is respectively contacted and matched with the printing plate roller and the stamping roller to transfer the printing pattern onto paper from the printing plate roller.
The front and rear directions in this specification are based on the conveyance direction of a print medium of an offset printing press, and the conveyance direction is from the front side to the rear side.
When the printing material passes through the space between the rubber roller and the embossing roller, the rubber roller transfers the printing pattern to the printing material, the UV lamp above the rear side of the embossing roller irradiates the printing material on the surface of the embossing roller, so that the ink on the printing material is solidified, and meanwhile, the air blowing device on the front side of the UV lamp blows air to the surface of the embossing roller, so that the printing material is tightly attached to the embossing roller under the action of wind pressure in the high-speed conveying process, and the printing material is prevented from being scraped by the UV lamp and damaged.
As the preferred scheme of the utility model, blast apparatus's air-out angle perpendicular to the roll surface of the impression roller that corresponds. The air outlet angle of the air blowing device is perpendicular to the roller surface of the corresponding embossing roller, and the printed matter is subjected to larger air pressure in the high-speed conveying process, so that the printed matter can be attached to the roller surface of the embossing roller, and the printed matter is further prevented from being scraped to the UV lamp.
As a further preferred scheme of the utility model, blast apparatus is a blast pipe that is on a parallel with the embossing roll that corresponds, and a plurality of air outlets towards the embossing roll surface are evenly seted up to the blast pipe along its length direction. The blast pipe and the embossing roller are arranged in parallel, the length of the blast pipe can correspond to the embossing roller, and meanwhile, a plurality of air outlets facing the roll surface of the embossing roller are uniformly formed in the blast pipe along the length direction of the blast pipe, so that the roll surface of the embossing roller in the same length direction can be blown. The blast pipe can be externally connected with a fan for supplying air.
Compared with the prior art, the utility model, have following advantage:
the utility model discloses the offset press that prevents printing article damage has set up the blast apparatus who blows to the embossing roller roll surface in UV lamp front side, when the printing article is between rubber roller and embossing roller, the rubber roller is with printing figure rendition to the printing article on, the UV lamp that is in embossing roller rear side top shines the printing article on the embossing roller surface, make the printing ink solidification on the printing article, blast apparatus at UV lamp front side bloies the roll surface of embossing roller simultaneously, make the printing article receive the effect of wind pressure can paste tightly on the embossing roller at the in-process of high-speed transport, prevent that the printing article from scraping the UV lamp and damaging, improve the finished product qualification rate of printing article, can improve the conveying speed of printing article simultaneously, needn't reduce the conveying speed of printing article in order to avoid printing article scraping UV lamp, finally improve the production efficiency of whole offset press.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
wherein each is indicated as: 1-ink roller group and water roller group, 2-printing roller, 3-rubber roller, 4-embossing roller, 5-conveying roller, 6-UV lamp and 7-air pipe.
Detailed Description
The following further describes the preferred embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 and 2, an offset printing machine for preventing a printed product from being damaged comprises a plurality of printing roller sets, wherein each printing roller set comprises an ink roller set, a water roller set (the ink roller set and the water roller set are denoted by reference numeral 1 in fig. 1), a printing roller 2, a rubber roller 3 and a stamping roller 4, the rubber roller 3 is respectively in contact fit with the printing roller 2 and the stamping roller 4, and a plurality of conveying rollers 5 for conveying the printed product are arranged between the stamping rollers 4 of two adjacent printing roller sets; a UV lamp 6 for curing ink is arranged above the rear side of at least one embossing roller 4, and an air supply pipe 7 blowing to the roller surface of the embossing roller 4 is further arranged above the rear side of the embossing roller 4 and in front of the UV lamp 6; the blast pipe 7 is externally connected with a fan for supplying air, the blast pipe 7 is parallel to the corresponding embossing roller 4, the blast pipe 7 is uniformly provided with a plurality of air outlets (not marked in the figure) facing the roller surface of the embossing roller 4 along the length direction of the blast pipe, and the air outlet angle of each air outlet is vertical to the roller surface of the corresponding embossing roller 4.
The offset press for preventing the damage of the printed product of the utility model is provided with the blowing device blowing to the roller surface of the embossing roller 4 at the front side of the UV lamp 6, when the printed product passes between the rubber roller 3 and the impression roller 4, the rubber roller 3 transfers the printing pattern to the printed product, the UV lamp 6 positioned above the rear side of the impression roller 4 irradiates the printed product on the surface of the impression roller 4 to solidify the ink on the printed product, meanwhile, the air blowing device at the front side of the UV lamp 6 blows air to the roller surface of the embossing roller 4, so that the printed product can be tightly attached to the embossing roller 4 under the action of air pressure in the process of high-speed conveying, the printed product is prevented from being damaged by scraping the UV lamp 6, the finished product qualification rate of the printed product is improved, meanwhile, the conveying speed of the printed matter can be improved, the conveying speed of the printed matter does not need to be reduced in order to avoid scraping of the UV lamp 6 by the printed matter, and the production efficiency of the whole offset printing machine is finally improved.
In addition, the blast pipe 7 is arranged in parallel with the embossing roller 4, the length of the blast pipe 7 can correspond to that of the embossing roller 4, and meanwhile, a plurality of air outlets facing the roller surface of the embossing roller 4 are uniformly formed in the blast pipe 7 along the length direction of the blast pipe, so that the roller surface of the embossing roller 4 in the same length direction can be subjected to air blowing; and the air-out angle of air outlet is perpendicular to the roll surface of impression roller 4 that corresponds, and the printing material receives bigger wind pressure at the in-process of high-speed transport for the printing material can paste the roll surface of impression roller 4 tightly, further prevents that the printing material from scraping UV lamp 6.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The utility model provides an offset press that prevents printed matter damage, includes multiunit printing roller group, printing roller group is including china ink roller group, water roller group, version roller, rubber roller and impression roller, the rubber roller respectively with version roller and impression roller contact cooperation, be equipped with many transfer rollers that are used for carrying the printing matter between the impression roller of two adjacent printing roller groups, at least one impression roller rear side top is equipped with the UV lamp that is used for solidifying printing ink, its characterized in that: and an air blowing device blowing to the roller surface of the embossing roller is arranged above the rear side of the embossing roller and in front of the UV lamp.
2. The offset printing press for preventing damage of a print according to claim 1, wherein: and the air outlet angle of the air blowing device is vertical to the corresponding roller surface of the embossing roller.
3. The offset printing press for preventing damage of a print according to claim 2, wherein: the blowing device is an air supply pipe parallel to the corresponding embossing roller, and a plurality of air outlets facing the roller surface of the embossing roller are uniformly formed in the air supply pipe along the length direction of the air supply pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813470.8U CN210501816U (en) | 2019-05-31 | 2019-05-31 | Offset press for preventing printed matter from being damaged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813470.8U CN210501816U (en) | 2019-05-31 | 2019-05-31 | Offset press for preventing printed matter from being damaged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210501816U true CN210501816U (en) | 2020-05-12 |
Family
ID=70577204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920813470.8U Active CN210501816U (en) | 2019-05-31 | 2019-05-31 | Offset press for preventing printed matter from being damaged |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210501816U (en) |
-
2019
- 2019-05-31 CN CN201920813470.8U patent/CN210501816U/en active Active
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