CN102176108B - Automatically partitioned vacuumizing mechanism of platemaking roller - Google Patents
Automatically partitioned vacuumizing mechanism of platemaking roller Download PDFInfo
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- CN102176108B CN102176108B CN2011100503562A CN201110050356A CN102176108B CN 102176108 B CN102176108 B CN 102176108B CN 2011100503562 A CN2011100503562 A CN 2011100503562A CN 201110050356 A CN201110050356 A CN 201110050356A CN 102176108 B CN102176108 B CN 102176108B
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- roller
- clamp bar
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Abstract
The invention provides an automatically partitioned vacuumizing mechanism of a platemaking roller. A printing plate in the same platemaking machine can be firmly and stably adsorbed on the surface of the roller in the process of making printing plates with different breadths. The device is characterized in that: the roller (1) comprises an outer roller (2) and an inner air distribution roller (3), wherein a circumferential trapezoid-shaped groove (4) on the outer roller (2) is used for fastening a movable tail plate clamp (13), an air pumping hole (5) is arranged in the groove, an air chamber(6) on the inner air distribution roller (3) is communicated with an air pipeline (7); and as the tail plate clamp (13) moves, and air paths (7) of different lengths on the inner air distribution roller (3) can be communicated with an arc-shaped air groove (15) on an outer disc (14) to pump air. The automatically partitioned vacuumizing mechanism has the following advantages that: printing plates of a plurality of breadths can be produced through one set of the platemaking machine, the roller has compact design, and is easy to implement, and the production cost is reduced.
Description
Technical field
The invention belongs to the automatic platemaker field of printing industry, relate in particular to a kind of plate-making cylinder auto-partition vacuum extractor.
Background technology
Plate-making is one important process in whole printing-flow, and in the CTP platemaking machine, the design of cylinder plays crucial effects to plate-making quality.Not only need cylinder to rotate stably, also need make forme tightly attached on the cylinder, avoid in the plate-making process, occurring flying version as far as possible, walk an edition phenomenon.
In the present plate-making technology, the forme of different breadths size mostly adopted bled in the zone of maximum breadth forme, and do not vacuumize the related device of adjusting to different size area.When using minimum forme, having only by the forme region covered is effectively to bleed, and other zone that is not capped all leaks gas, and the vacuum tightness that this has just reduced between cylinder and the forme greatly makes forme reduce much the absorption affinity of cylinder.Some platemaking machine take to regulate the way of vacuum pump power, though solved the forme breadth size problem that absorption brings to cylinder to a certain extent, fundamentally do not solve, and have increased energy consumption on the contrary.At this moment, the device that needs some to can be used for the forme of different breadths is effectively regulated vacuum tightness makes forme tightly smoothly be adsorbed on cylinder surface.And the breadth according to forme varies in size, and employing activity clamp bar clamps the forme afterbody, makes it can not occur flying an edition situation because drum rotation speed is too fast.
To the absorption problem of forme on the cylinder, many research is arranged in the prior art.In the for example Chinese utility application 200620022755.2, through the 1# district, the 2# district; The 3# district, bleed to different breadth formes in these four districts in the 4# district, and the air chamber (as shown in Figure 1) that cylinder surface is the checkerboard type distribution interconnects; Because the air channel of pore, air chamber and outer surface of cylinder on the cylinder is more; And complex-shaped, increased the difficulty of processing of cylinder, also can have influence on the image quality of forme.
Summary of the invention
The present invention transforms roller frame, simplifies the setting of aspirating hole on the cylinder, make vacuumize more convenient succinct.Removed the air chamber that complicated main body checkerboard type distributes among the present invention; Open a spot of several airways at internal layer distribution cylinder surface by dimensional requirement; Avoid outer imaging cylinder surface overcomplicated, thereby greatly reduced the Design and Machining difficulty of cylinder, improved image quality.The present invention utilizes vacuum pump through the air drain on each pore on the cylinder, air flue and the two ends outer disc gap between forme and the cylinder surface to be vacuumized; Make the gap between cylinder and the forme can form negative pressure, with forme tightly be coated on cylinder surface.
The design concept of auto-partition vacuum extractor is among the present invention: cylinder is divided into outer cylinder and internal layer distribution cylinder, and both are sleeved on together regularly at the tightening seal enclosed.The surface of outer cylinder can fasten the tail clamp bar and let its can be on the roll circumference direction movable groove circumferentially having.It is trapezoidal that groove is, and to even distribution, in groove, has aspirating hole along drum shaft, can be adsorbed on its surperficial forme with this.Be designed with on the internal layer cylinder and the formed long and narrow sealed gas chamber of the inwall of outer cylinder and several airways, communicate with the drum of hollow and ventilate.The drum shaft of hollow also has air admission hole above that as the exhaust tube that connects external vacuum pump.Two-end part at cylinder has air chamber, can be communicated with by the air passing hole of opening on the support ring of back-up roller axle and distribution cylinder.When using minimum breadth forme, can use above-mentioned permanent air chamber and the breather line of on the internal layer cylinder, opening.Except that permanent breather line, the breather line on all the other internal layer distribution cylinders all leads to the two-end part of cylinder.And be provided with the outer disc that can rotate with the motion of movable tail clamp bar at the cylinder two ends, have the arc air channel on the disk.When the tail clamp bar circumferentially moves on cylinder along with forme breadth size, disc rotated, the arc air channel on the disk also can rotate.When the arc air channel turn to the internal layer cylinder on breather line when being connected, gas can get into the arc air channel, thereby gets in the axle through the air admission hole on the axle, realizes bleeding.Have only when the arc air channel on the outer end disc when airway on the internal layer cylinder forms effective the cooperation, could be communicated with the aspirating hole on the outer cylinder, vacuumize, otherwise can not play the effect of bleeding.Therefore, can realize carrying out the bleeding regulating function according to forme breadth size.
The present invention has improved defective of the prior art, has simplified complicated cylinder design, has solved the application of same platemaking machine to different breadth formes; The forme that can not only effectively adsorb different breadth sizes; Also can reduce production costs, easy to use, easy to implement.
Description of drawings
Fig. 1 is that the cylinder of Chinese utility application 200620022755.2 launches synoptic diagram;
Fig. 2 is the cross-sectional view of cylinder, shows the structure member of cylinder;
Fig. 3 is the stretch-out view of cylinder, shows the position and the length of breather line different in size;
Fig. 4 be the A of cylinder end face disk to figure, the relative position of arc air channel on the initial sum termination place that shows the tail clamp bar and the outer end disc;
Fig. 5 is the expansion vertical view that aspirating hole distributes on whole cylinder, shows the aspirating hole mentality of designing of symmetry.
Embodiment
Auto-partition vacuum extractor among the present invention is as shown in Figure 2, and its intermediate roll 1 is made up of with internal layer distribution cylinder 3 deadend suits outer cylinder 2.Outer cylinder 2 upper edges circumferentially have many trapezoidal grooves 4, evenly distribute vertically, and fasten movably tail clamp bar 13 (as shown in Figure 4) with this, and front page folder 12 is fixed on the outer cylinder 2.All have aspirating hole 5 along groove direction as requested every inside grooves.Internal layer distribution cylinder 3 forms air chamber 6 with outer cylinder 2 inwalls, and air chamber 6 is positioned at the middle part of internal layer distribution cylinder 3.The below of air chamber 6 also has first breather line 7 in the internal layer distribution cylinder 3, to form permanent breather line, makes the cylinder 1 of gas flow hollow.On the support ring 8 of back-up roller axle 10 and distribution cylinder 3 air passing hole 9 is arranged.Have several air admission holes 11 on the drum shaft 10, thus, vacuum pump is all taken away through the gas that drum shaft 10 can be communicated with hollow cylinder 1 inside.It is motionless that front page presss from both sides 12 stationkeeping, and tail clamp bar 13 relies on friction force to be fixed on cylinder surface when not driven by external force, and can when cylinder rotates, keep both static relatively.When forme breadth size variation, tail clamp bar 13 is driven by external force can move to corresponding forme afterbody in groove 4, opened the spring clamp bar of himself then by external force, clamps forme for the rotation exposure.No matter therefore how forme breadth size changes, front page folder 12 can both tightly be clamped forme with tail clamp bar 13.There are two outer discs 14 at the two ends of cylinder 1, link to each other through fixed pin with tail clamp bar 13, and when tail clamp bar 13 moved, outer disc 14 can be along with synchronous rotation.Outer disc 14 has arc air channel 15 near the end face of cylinder 1, can be to the air chamber ventilation at cylinder 1 two ends.Also have second airway 16 (as shown in Figure 5) different in size on the internal layer distribution cylinder 3; When with outer disc 14 on arc air channel 15 when being connected; Gas can get into this second airway 16 by aspirating hole 5; Be communicated with the air chamber that arc air channel 15 flows to the cylinder two ends again, get into cylinder 1 inside of hollow, taken away by vacuum pump at last.
The technical characterstic of auto-partition device design is: groove 4 is trapezoidal, on outer cylinder 2, evenly distributes, and has an aspirating hole 54 li of each grooves, and sealed gas chamber 6 can communicate with cylinder 1 inner several first airways 7 and bleed.Form bigger air chamber between the internal layer distribution cylinder 3 at cylinder 1 two ends and the disk 14, be communicated with by the air passing hole on the support ring 8 of back-up roller axle 10 and internal layer distribution cylinder 39.When using minimum breadth forme, can use above-mentioned permanent air chamber 6 and airway 7.Except that permanent airway 7, all the other second airways 16 all lead to the two-end part of cylinder 1, and length differs these second airways 16 according to the plate size.The cylinder two ends are provided with the outer disc 14 that can rotate with the motion of the tail clamp bar 13 of activity, when tail clamp bar 13 circumferentially moves on cylinder 1 along with forme breadth size, drive disk 14 to rotate, and arc air channel 15 rotates thereupon.After tail clamp bar 13 turns to certain position; Aspirating hole 5 is connected with corresponding second airway 16; Arc air channel 15 also turns to the relevant position thereupon, is connected with second airway 16, and therefore gas can get into the drum of hollow; Thereby get in the axle 10 through the air admission hole on the axle 10 11, realize bleeding.Form when effectively cooperating but have only when arc air channel 15 and second breather line 16; Could pass through corresponding second airway 16 and be communicated with aspirating hole 5; Vacuumize; Otherwise second airway 16 can not be communicated with arc air channel 15, can not make gas get into cylinder 1 inside, can not play the effect of bleeding.Therefore, this Design of device can realize bleeding regulating can not having influence on the vacuum tightness between forme and the cylinder 1 because of forme breadth size variation to forme according to the big or small difference of forme breadth, can perfectly realize the design that auto-partition vacuumizes.The size of second airway 16 is obtained after the parcel radian on the cylinder 1 calculates by the forme of name kind specification.Cylinder 1 launches back second airway 16 distribution situation such as Fig. 3 above that, shown in 5.
The present invention has improved the structural design of cylinder from the influence to the air extractor on the platemaking machine of the forme of different size, and cylinder can be satisfied can bleed to the forme of different breadths sizes, thereby keeps the operate as normal of platemaking machine.The present invention has remedied the deficiency of prior art, makes the plate plate-making of a platemaking machine applicable to multiple different breadth specifications, and can firmly adsorb forme, and it is fixed on the cylinder.Cylinder design of the present invention need not be complicated the balance driving control system, greatly reduce the Design and Machining cost of cylinder and the production cost of platemaking machine, easy to use, be easy to general implementation.
The above is merely preferred embodiment of the present invention, is not in order to limiting claim scope of the present invention, and therefore all other do not break away from the equivalence of being accomplished under the disclosed spirit and change or modify, and all should be contained in the claim scope of the present invention.
Claims (2)
1. the auto-partition vacuum extractor of the cylinder that is used to make a plate is characterized in that:
This device has the cylinder (1) of the hollow of being made up of outer cylinder (2) and internal layer distribution cylinder (3) deadend suit, the front page that is fixed on the outer cylinder (2) presss from both sides (12), and back-up roller axle (10);
Wherein, Outer cylinder (2) is along circumferentially having many trapezoidal grooves (4); Said groove (4) evenly distributes at the outside surface of outer cylinder (2) vertically, fastens movably tail clamp bar (13) with this, and the inside of every groove (4) all has the aspirating hole (5) along groove direction;
Internal layer distribution cylinder (3) forms air chamber (6) with the inwall of outer cylinder (2), and air chamber (6) is positioned at the middle part of internal layer distribution cylinder (3);
The below of the interior air chamber of internal layer distribution cylinder (3) (6) also has first breather line (7), to form permanent breather line, makes the cylinder (1) of gas flow hollow;
The support ring (8) and the back-up roller axle (10) of distribution cylinder (3) are provided with air passing hole (9); And on back-up roller axle (10), also have several air admission holes (11); Thus, vacuum pump can be taken away through the gas that back-up roller axle (10) can be communicated with hollow cylinder (1) inside;
The stationkeeping of front page folder (12) is motionless, and tail clamp bar (13) frictionally when not driven by external force is fixed on outer cylinder (2) surface, and can when outer cylinder (2) rotates, keep both static relatively; When forme breadth size variation, tail clamp bar (13) drives the afterbody that can in trapezoidal groove (4), move to corresponding forme by external force, is opened the spring clamp bar of himself then by external force, supplies the rotation exposure to use to clamp forme; No matter therefore how forme breadth size changes, front page folder (12) and tail clamp bar (13) can both be clamped forme tightly;
In addition, there are two outer discs (14) at the two ends of the cylinder of hollow (1), and it links to each other through fixed pin with tail clamp bar (13), thereby when tail clamp bar (13) moved, outer disc (14) can be along with tail clamp bar (13) rotation synchronously; Outer disc (14) has near the end of the cylinder (1) of hollow can be to the arc air channel (15) of the air chamber ventilation at cylinder (1) two ends;
Also have second airway (16) different in size on the internal layer distribution cylinder (3); When with outer disc (14) on arc air channel (15) when being connected; Gas can get into second airway (16) via aspirating hole (5); Be communicated with the air chamber that arc air channel (15) flows to the cylinder two ends again, enter into cylinder (1) inside of hollow, taken away by vacuum pump at last.
2. the auto-partition vacuum extractor of the cylinder that is used to make a plate according to claim 1, it is characterized in that: said second airway (16) different in size is corresponding with the plate size, effectively bleeding when realizing that the plate subregion covers;
And have only when arc air channel (15) and second breather line (16) and form when effectively cooperating; Could pass through corresponding second airway (16) and be communicated with aspirating hole (5); Vacuumize; Otherwise second airway (16) can not be communicated with arc air channel (15) on the outer disc (14), can not make gas get into cylinder (1) inside of hollow, can not play the effect of bleeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100503562A CN102176108B (en) | 2011-03-03 | 2011-03-03 | Automatically partitioned vacuumizing mechanism of platemaking roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100503562A CN102176108B (en) | 2011-03-03 | 2011-03-03 | Automatically partitioned vacuumizing mechanism of platemaking roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102176108A CN102176108A (en) | 2011-09-07 |
| CN102176108B true CN102176108B (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100503562A Expired - Fee Related CN102176108B (en) | 2011-03-03 | 2011-03-03 | Automatically partitioned vacuumizing mechanism of platemaking roller |
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| CN (1) | CN102176108B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772993B (en) * | 2015-03-31 | 2016-08-24 | 泉州市旭丰图文制模有限公司 | Film printout machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048464U (en) * | 1988-12-27 | 1989-11-29 | 山西矿业学院 | Vacuum collume driving system for belt conveyer |
| US5402721A (en) * | 1993-05-13 | 1995-04-04 | Comco Machinery, Inc. | Vacuum printing plate roller |
| US6276421B1 (en) * | 1998-06-05 | 2001-08-21 | Armstrong World Industries, Inc. | Release sheet application apparatus |
| KR20020084485A (en) * | 2001-05-02 | 2002-11-09 | 주식회사 엠앤엘 | apparatus of vacuum roller for elimination of coating vinyl |
| CN2867397Y (en) * | 2006-01-27 | 2007-02-07 | 北京佳萌锐普科技发展有限公司 | Platemaking machine with automatic partition pumped vacuum and counterweight device |
| CN1967344A (en) * | 2005-11-15 | 2007-05-23 | Adm股份有限公司 | Roll device |
-
2011
- 2011-03-03 CN CN2011100503562A patent/CN102176108B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048464U (en) * | 1988-12-27 | 1989-11-29 | 山西矿业学院 | Vacuum collume driving system for belt conveyer |
| US5402721A (en) * | 1993-05-13 | 1995-04-04 | Comco Machinery, Inc. | Vacuum printing plate roller |
| US6276421B1 (en) * | 1998-06-05 | 2001-08-21 | Armstrong World Industries, Inc. | Release sheet application apparatus |
| KR20020084485A (en) * | 2001-05-02 | 2002-11-09 | 주식회사 엠앤엘 | apparatus of vacuum roller for elimination of coating vinyl |
| CN1967344A (en) * | 2005-11-15 | 2007-05-23 | Adm股份有限公司 | Roll device |
| CN2867397Y (en) * | 2006-01-27 | 2007-02-07 | 北京佳萌锐普科技发展有限公司 | Platemaking machine with automatic partition pumped vacuum and counterweight device |
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| Publication number | Publication date |
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| CN102176108A (en) | 2011-09-07 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110907 Assignee: Nantong Dayi Printing Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000439 Denomination of invention: Automatically partitioned vacuumizing mechanism of platemaking roller Granted publication date: 20121128 License type: Common License Record date: 20181229 Application publication date: 20110907 Assignee: Nantong New Green Garden Printing Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000440 Denomination of invention: Automatically partitioned vacuumizing mechanism of platemaking roller Granted publication date: 20121128 License type: Common License Record date: 20181229 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191224 Address after: 210000 room 206, No.20 Yunnan Road, Gulou District, Nanjing, Jiangsu Province Patentee after: Nanjing Pusheng Printing Technology Co., Ltd Address before: Nanjing City, Jiangsu province 210037 Longpan Road No. 159 Patentee before: Nanjing Forestry University |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20200303 |
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| CF01 | Termination of patent right due to non-payment of annual fee |