CN204586083U - A kind of gravure offset printing press - Google Patents
A kind of gravure offset printing press Download PDFInfo
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- CN204586083U CN204586083U CN201520291570.0U CN201520291570U CN204586083U CN 204586083 U CN204586083 U CN 204586083U CN 201520291570 U CN201520291570 U CN 201520291570U CN 204586083 U CN204586083 U CN 204586083U
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Abstract
The utility model discloses a kind of gravure offset printing press, comprise unreeling and be wound with stock, can uniformly rotate and the stock unreeling upper winding is at the uniform velocity sent expansion; The end of sending of stock is stamped cylinder and clamps mutually with rubber cylinder, and impression cylinder and rubber cylinder are arranged at the same position of stock both sides, can carry out uniform rotation with unreeling identical speed; There is positive pressure between impression cylinder and rubber cylinder, rubber cylinder speckles with ink; Rubber cylinder contacts with gravure cylinder, arranges with the mode friction rolling without relative sliding, has positive pressure; A part for gravure cylinder is arranged in black groove, and ink when gravure cylinder rotates in black groove on ink groove can immerse in the depression on gravure cylinder.
Description
Technical field
The utility model relates to print field, especially, relates to a kind of gravure offset printing press.
Background technology
In intaglio offset, swing roller has gravure cylinder, rubber cylinder, impression cylinder etc., wherein fills ink in gravure cylinder groove ink cave.This intaglio plate also has background area, and its surface attachment ink is peeled off by scraper.What contact with it in plate cylinder rotary course is rubber cylinder, is coated with the surface with rubber, can adheres to ink.This cylinder be a kind of have flexible body, strengthening blanket coated with rigid cylinder surface.The ink existed in the depression of intaglio plate is transferred to rubber cylinder surface by separation, stock by between rubber cylinder and plate cylinder time, image information is transferred on stock.Rubber cylinder needs under enough pressure condition, by ink sorptive in black cave out, and peels off from black cave.Need to ensure that rubber layer surface adsorption property is strong, elasticity is better.But when rubber cylinder ink is transferred to stock by impression cylinder again, in meticulous printing, in order to ensure printing precision, squeegee pressure is crossed conference and is caused printed matter distortion, and rubber cylinder elasticity is large, when hardness is low, graph text information distortion is large, has a strong impact on print quality.If as hard as greatly, insufficient pressure, there will be transfer amount when picture and text are transferred to printable fabric few, and rubber cylinder ink residue is many, shifts insufficient.When again printing, need to guarantee not affect subsequent printings at cleaning rubber cylinder.
In press, rubber cylinder is the general rubber product used in material, is in theory all oleophylic, and ink can be adsorbed preferably, in ink transfer, ink has certain time of staying between rubber cylinder, and rubber can absorb a certain amount of ink to a certain extent.Along with printing time increases, it is long to print not downtime, and the ink that rubber absorbs increases, and the surface of rubber cylinder can be caused to expand because of absorption ink, and the relative distance between change cylinder, affects printing precision and print quality.In order to compare this situation in practical operation, needing regular shutdown guarantee ink to shut down in its natural state and guaranteeing that ink is discharged.In printed electronic field, printing precision needs to reach the 20um required precision that even 1-5um is higher, and trickle change will affect product quality, if ensured the quality of products by shutdown, in this case, machinery utilization rate is low, and production efficiency is low, affects the output value.
For forme depression in prior art cannot fully graph text information cannot be transferred to by printing ink transfer to rubber cylinder, rubber cylinder completely printable fabric, rubber cylinder have residual need stop cleaning to cause the product quality of gravure offset printing press is low, machinery utilization rate is low, production efficiency is low and baroque problem, not yet has effective solution at present.
Utility model content
Low for the product quality of gravure offset printing press in prior art, machinery utilization rate is low, production efficiency is low and baroque problem, the purpose of this utility model is to propose a kind of gravure offset printing press, can improve the quality of products, machinery utilization rate, production efficiency, and simplify frame for movement.
Based on above-mentioned purpose, the technical scheme that the utility model provides is as follows:
According to an aspect of the present utility model, provide a kind of gravure offset printing press.
The gravure offset printing press provided according to an aspect of the present utility model comprises and unreeling, and unreels and is wound with stock, unreel and can uniformly rotate and the stock unreeling upper winding is at the uniform velocity sent expansion;
The end of sending of stock is stamped cylinder and clamps mutually with rubber cylinder, impression cylinder and rubber cylinder are arranged at the same position of stock both sides, impression cylinder can carry out uniform rotation with unreeling identical speed with rubber cylinder, and what drive stock sends end outwards motion;
Have positive pressure between impression cylinder and rubber cylinder, rubber cylinder speckles with ink, the ink on rubber cylinder can be transferred on stock when being stamped cylinder and rubber cylinder clamps by stock completely;
Rubber cylinder contacts with gravure cylinder and arranges, with the mode friction rolling without relative sliding between rubber cylinder and gravure cylinder, have positive pressure between rubber cylinder and gravure cylinder, the ink that rubber cylinder is stained with derives from the ink in the depression on gravure cylinder;
A part for gravure cylinder is arranged in black groove, and fill ink in black groove, the ink in the depression on gravure cylinder derives from black groove, and ink when gravure cylinder rotates in black groove on ink groove can immerse in the depression on gravure cylinder.
Wherein, rubber cylinder comprises rubber layer, bubble layer and carrier, and wherein, rubber layer is the hard rubber layers on rubber cover belt roller surface; Carrier is the metal support structure of rubber cylinder inside; Bubble layer is the elastic cord breaker be arranged between rubber layer and carrier, and rubber layer can be subject to positive pressure from the external world and compressed gas alveolar layer along with rubber layer in the rotary course of rubber cylinder.
Further, bubble layer comprises multiple non-encapsulated bubble hole, and multiple non-encapsulated bubble hole comprises multiple first kind non-encapsulated bubble hole and the non-encapsulated bubble hole of multiple Equations of The Second Kind; Rubber layer can be subject to positive pressure from the external world and compressed gas alveolar layer along with rubber layer in the rotary course of rubber cylinder, for rubber layer be subject to from the external world positive pressure increase time, the air in the multiple non-encapsulated bubble hole in bubble layer can be extruded, and reduce the thickness of bubble layer; When rubber layer is subject to reducing from the positive pressure in the external world, the multiple non-encapsulated bubble hole in bubble layer can absorb air and fill bubble, and improves the thickness of bubble layer.
And, rubber cylinder contact with gravure cylinder rotate time, rubber layer can be grouped into nature next time being subject to the state from the positive pressure of gravure cylinder, multiple first kind non-encapsulated bubble hole in bubble layer and the non-encapsulated bubble hole of multiple Equations of The Second Kind can absorb air, and are absorbing the printing ink transfer in the depression driven while air on gravure cylinder on rubber layer.
Simultaneously, rubber cylinder with impression cylinder clamp stock rotate time, rubber layer can be subject to the positive pressure from impression cylinder in its natural state, air can be extruded in multiple first kind non-encapsulated bubble hole in bubble layer and the non-encapsulated bubble hole of multiple Equations of The Second Kind, and is blown on stock by the absorption ink that rubber layer remains while extruding air.
Above-mentioned gravure cylinder edge is fixedly installed scraper, and scraper does not rotate with gravure cylinder and rotates, and scraper can wipe the ink of gravure cylinder remained on surface off when gravure cylinder rotates, scraper can not wipe the ink in the depression on gravure cylinder off.
Above-mentioned gravure offset printing press also comprises detection drier, and detection drier is arranged at just to the direction of rubber cylinder, detection drier can to detect on rubber cylinder be stained with the wetness degree of ink, and adjust the printing ink concentration in black groove according to the wetness degree of be stained with ink.
As can be seen from above, the technical scheme that the utility model provides by use impression cylinder, rubber cylinder, gravure cylinder and technical scheme, use the rubber cylinder of multilayer material can have elasticity and hardness concurrently, ink can be made fully to shift in transfer process, improve product quality, machinery utilization rate, production efficiency, and simplify frame for movement.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the overall construction drawing of the gravure offset printing press according to the utility model embodiment;
Fig. 2 is the rubber cylinder structure chart of the gravure offset printing press according to the utility model embodiment;
Fig. 3 is the rubber cylinder Structure of cross section figure of the gravure offset printing press according to the utility model embodiment;
Fig. 4 is the vertical section schematic enlarged-scale view of the rubber cylinder outer surface local according to the gravure offset printing press of the utility model embodiment;
Fig. 5 a is when not being subject to positive pressure according to the rubber cylinder outer surface of the gravure offset printing press of the utility model embodiment, the vertical section schematic enlarged-scale view of local;
Fig. 5 b is when receiving positive pressure according to the rubber cylinder outer surface of the gravure offset printing press of the utility model embodiment, the vertical section schematic enlarged-scale view of local;
Fig. 6 is the transfer printing structural representation of part of contacting with stock according to the rubber cylinder of the gravure offset printing press of the utility model embodiment.
Detailed description of the invention
Clearly understand for making the purpose of this utility model, technical scheme and advantage, below in conjunction with the accompanying drawing in the utility model embodiment, to the technical scheme in the utility model embodiment carry out further clear, complete, describe in detail, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of the utility model protection.
According to embodiment of the present utility model, provide a kind of gravure offset printing press.
Shown in Fig. 1 is the overall construction drawing of gravure offset printing press.As shown in Figure 1, comprise according to the gravure offset printing press of embodiment of the present utility model and unreel 1, unreel on 1 and be wound with stock 3, unreel 1 and can uniformly rotate and at the uniform velocity send expansion by unreeling the stock 3 be wound around on 1;
The end of sending of stock 3 is stamped cylinder 2 and clamps with rubber cylinder 4 phase, impression cylinder 2 and rubber cylinder 4 are arranged at the same position of stock 3 both sides, impression cylinder 2 and rubber cylinder 4 can be identical with unreeling 1 speed carry out uniform rotation, what drive stock 3 sends end outwards motion;
Have positive pressure between impression cylinder 2 and rubber cylinder 4, rubber cylinder 4 speckles with ink, the ink on rubber cylinder 4 can be transferred on stock 3 when being stamped cylinder 2 and clamping with rubber cylinder 4 by stock 3 completely;
Rubber cylinder 4 contacts with gravure cylinder 5 and arranges, with the mode friction rolling without relative sliding between rubber cylinder 4 and gravure cylinder 5, have positive pressure between rubber cylinder 4 and gravure cylinder 5, the ink that rubber cylinder 4 is stained with derives from the ink in the depression on gravure cylinder 5;
A part for gravure cylinder 5 is arranged in black groove 7, and fill ink in black groove 7, the ink in the depression on gravure cylinder 5 derives from black groove 7, and ink when gravure cylinder 5 rotates in black groove 7 on ink groove 7 can immerse in the depression on gravure cylinder 5.
Wherein, rubber cylinder 4 comprises rubber layer 9, bubble layer 10 and carrier 11.From the rubber cylinder Structure of cross section figure shown in the rubber cylinder structure chart shown in Fig. 2 and Fig. 3, rubber layer 9 is the hard rubber layers on rubber cover belt roller 4 surface; Carrier 11 is the metal support structure of rubber cylinder 4 inside; Bubble layer 10 is for being arranged at the elastic cord breaker between rubber layer 9 and carrier 11, and rubber layer 9 can be subject to positive pressure from the external world and compressed gas alveolar layer 10 along with rubber layer 9 in the rotary course of rubber cylinder 4.Soft firmly outer in rubber cylinder 4, there is enough hardness and elasticity simultaneously.
Shown by Fig. 4, Fig. 5 a and Fig. 5 b are all local flattened structure that in Fig. 3, I identifies the part rubber cylinder 4 referred to.From Fig. 4, Fig. 5 a and Fig. 5 b, bubble layer 10 comprises multiple non-encapsulated bubble hole, and multiple non-encapsulated bubble hole comprises multiple first kind non-encapsulated bubble hole 12 and the non-encapsulated bubble hole 13 of multiple Equations of The Second Kind; Rubber layer 9 can be subject to positive pressure from the external world and compressed gas alveolar layer 10 along with rubber layer 9 in the rotary course of rubber cylinder 4, for rubber layer 9 be subject to from the external world positive pressure increase time, the air in the multiple non-encapsulated bubble hole in bubble layer 10 can be extruded, and reduce the thickness of bubble layer 10; When rubber layer 9 is subject to reducing from the positive pressure in the external world, the multiple non-encapsulated bubble hole in bubble layer 10 can absorb air and fill bubble, and improves the thickness of bubble layer 10.
And, rubber cylinder 4 contact with gravure cylinder 5 rotate time, rubber layer 9 can be grouped into nature next time in the state from the positive pressure of gravure cylinder 5 that is subject to, multiple first kind non-encapsulated bubble hole in bubble layer 10 12 and the non-encapsulated bubble hole 13 of multiple Equations of The Second Kind can absorb air, and while absorbing air, drive printing ink transfer in the depression on gravure cylinder 5 on rubber layer 9.
Simultaneously, rubber cylinder 4 with impression cylinder 2 clamp stock 3 rotate time, rubber layer 9 can be subject to the positive pressure from impression cylinder 2 in its natural state, air can be extruded with the non-encapsulated bubble hole 13 of multiple Equations of The Second Kind in multiple first kind non-encapsulated bubble hole 12 in bubble layer 10, and is blown on stock 3 by absorption ink residual on rubber layer 9 while extruding air.This process is process illustrated in fig. 6.
Above-mentioned gravure cylinder 5 edge is fixedly installed scraper 6, and scraper 6 does not rotate with gravure cylinder 5 and rotates, and scraper 6 can wipe the ink of gravure cylinder 5 remained on surface off when gravure cylinder 5 rotates, scraper 6 can not wipe the ink in the depression on gravure cylinder 5 off.
Above-mentioned gravure offset printing press also comprises detection drier 8, detection drier 8 is arranged at just to the direction of rubber cylinder 4, detection drier 8 can to detect on rubber cylinder 4 be stained with the wetness degree of ink, and adjust the printing ink concentration in black groove 7 according to the wetness degree of be stained with ink.
In sum, by means of technique scheme of the present utility model, by use impression cylinder, rubber cylinder, gravure cylinder and technical scheme, use the rubber cylinder of multilayer material can have elasticity and hardness concurrently, ink can be made fully to shift in transfer process, improve product quality, machinery utilization rate, production efficiency, and simplify frame for movement.
Those of ordinary skill in the field are to be understood that: the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle; any amendment of making, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a gravure offset printing press, it is characterized in that, comprise and unreeling (1), described unreeling on (1) is wound with stock (3), described in unreel (1) and can uniformly rotate and described (1) the upper described stock (3) be wound around that unreels at the uniform velocity is sent expansion;
The end of sending of described stock (3) is stamped cylinder (2) and clamps mutually with rubber cylinder (4), described impression cylinder (2) and described rubber cylinder (4) are arranged at the same position of described stock (3) both sides, described impression cylinder (2) can carry out uniform rotation with described (1) the identical speed that unreels with described rubber cylinder (4), and what drive described stock (3) sends end outwards motion;
Positive pressure is had between described impression cylinder (2) and described rubber cylinder (4), (4) speckle with ink to described rubber cylinder, and the ink on described rubber cylinder (4) can be transferred on described stock (3) when being clamped with described rubber cylinder (4) by described impression cylinder (2) by described stock (3) completely;
Described rubber cylinder (4) contacts with gravure cylinder (5) and arranges, with the mode friction rolling without relative sliding between described rubber cylinder (4) and described gravure cylinder (5), have positive pressure between described rubber cylinder (4) and described gravure cylinder (5), the ink that described rubber cylinder (4) is stained with derives from the ink in the depression on described gravure cylinder (5);
A part for described gravure cylinder (5) is arranged in black groove (7), ink is filled in described black groove (7), ink in depression on described gravure cylinder (5) derives from described black groove (7), and ink when described gravure cylinder (5) rotates in described black groove (7) on described black groove (7) can immerse in the depression on described gravure cylinder (5).
2. a kind of gravure offset printing press according to claim 1, it is characterized in that, described rubber cylinder (4) comprises rubber layer (9), bubble layer (10) and carrier (11), wherein, described rubber layer (9) is the hard rubber layers covering described rubber cylinder (4) surface; Described carrier (11) is the metal support structure of described rubber cylinder (4) inside; Described bubble layer (10) is for being arranged at the elastic cord breaker between described rubber layer (9) and described carrier (11), and described rubber layer (9) can be subject to the positive pressure from the external world along with described rubber layer (9) and compress described bubble layer (10) in the rotary course of described rubber cylinder (4).
3. a kind of gravure offset printing press according to claim 2, it is characterized in that, described bubble layer (10) comprises multiple non-encapsulated bubble hole, and described multiple non-encapsulated bubble hole comprises multiple first kind non-encapsulated bubble hole (12) and the non-encapsulated bubble hole (13) of multiple Equations of The Second Kind; Described rubber layer (9) can be subject to the positive pressure from the external world along with described rubber layer (9) and compress described bubble layer (10) in the rotary course of described rubber cylinder (4), for described rubber layer (9) be subject to from the external world positive pressure increase time, the air in the multiple non-encapsulated bubble hole in described bubble layer (10) can be extruded, and reduce the thickness of described bubble layer (10); When described rubber layer (9) is subject to reducing from the positive pressure in the external world, the multiple non-encapsulated bubble hole in described bubble layer (10) can absorb air and fill bubble, and improves the thickness of described bubble layer (10).
4. a kind of gravure offset printing press according to claim 3, it is characterized in that, described rubber cylinder (4) contact with described gravure cylinder (5) rotate time, described rubber layer (9) can be grouped into nature next time in the state from the positive pressure of described gravure cylinder (5) that is subject to, described multiple first kind non-encapsulated bubble hole (12) in described bubble layer (10) and the non-encapsulated bubble hole (13) of described multiple Equations of The Second Kind can absorb air, and absorbing the printing ink transfer in the depression driven while air on described gravure cylinder (5) on described rubber layer (9).
5. a kind of gravure offset printing press according to claim 3, it is characterized in that, described rubber cylinder (4) with described impression cylinder (2) clamp described stock (3) rotate time, described rubber layer (9) can be subject to the positive pressure from described impression cylinder (2) in its natural state, described multiple first kind non-encapsulated bubble hole (12) in described bubble layer (10) and the non-encapsulated bubble hole (13) of described multiple Equations of The Second Kind can extrude air, and while extruding air, upper for described rubber layer (9) residual absorption ink is blown on described stock (3).
6. according to a kind of gravure offset printing press in claim 1-5 described in any one, it is characterized in that, described gravure cylinder (5) edge is fixedly installed scraper (6), described scraper (6) does not rotate with described gravure cylinder (5) and rotates, described scraper (6) can wipe the ink of described gravure cylinder (5) remained on surface off when described gravure cylinder (5) rotates, described scraper (6) can not wipe the ink in the depression on described gravure cylinder (5) off.
7. according to a kind of gravure offset printing press in claim 1-5 described in any one, it is characterized in that, described gravure offset printing press also comprises detection drier (8), described detection drier (8) is arranged at just to the direction of described rubber cylinder (4), described detection drier (8) can to detect on described rubber cylinder (4) be stained with the wetness degree of ink, and according to the printing ink concentration in the described black groove (7) of wetness degree adjustment of be stained with ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291570.0U CN204586083U (en) | 2015-05-07 | 2015-05-07 | A kind of gravure offset printing press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291570.0U CN204586083U (en) | 2015-05-07 | 2015-05-07 | A kind of gravure offset printing press |
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| Publication Number | Publication Date |
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| CN204586083U true CN204586083U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520291570.0U Expired - Fee Related CN204586083U (en) | 2015-05-07 | 2015-05-07 | A kind of gravure offset printing press |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859279A (en) * | 2015-05-07 | 2015-08-26 | 北京印刷学院 | Gravure offset printing press |
| CN107053823A (en) * | 2017-05-31 | 2017-08-18 | 浙江伟博包装印刷品有限公司 | Intaglio printing press bubbles of ink pressurizing unit |
| CN107738499A (en) * | 2017-10-13 | 2018-02-27 | 天津市侨阳印刷有限公司 | A kind of printing cylinder |
-
2015
- 2015-05-07 CN CN201520291570.0U patent/CN204586083U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859279A (en) * | 2015-05-07 | 2015-08-26 | 北京印刷学院 | Gravure offset printing press |
| CN107053823A (en) * | 2017-05-31 | 2017-08-18 | 浙江伟博包装印刷品有限公司 | Intaglio printing press bubbles of ink pressurizing unit |
| CN107738499A (en) * | 2017-10-13 | 2018-02-27 | 天津市侨阳印刷有限公司 | A kind of printing cylinder |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20200507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |