CN201060366Y - Anti-leakage device for optical drum adsorption forme of direct plate-making machine - Google Patents
Anti-leakage device for optical drum adsorption forme of direct plate-making machine Download PDFInfo
- Publication number
- CN201060366Y CN201060366Y CNU2007201080865U CN200720108086U CN201060366Y CN 201060366 Y CN201060366 Y CN 201060366Y CN U2007201080865 U CNU2007201080865 U CN U2007201080865U CN 200720108086 U CN200720108086 U CN 200720108086U CN 201060366 Y CN201060366 Y CN 201060366Y
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- forme
- version
- light drum
- press strip
- gas
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Abstract
The utility model relates to a computer-to-plate platemaker used for the printing industry, and relates to a gas leaking-proof device for a photo drum adhesion printing plate of the computer-to-plate platemaker in particular. The utility model comprises a photo drum, a plate tail batten, a plate tail batten controlling mechanism, and a plate tail batten supporting mechanism. The utility model is characterized in that gas guiding holes on the surface of the photo drum are distributed at the bottom of a gas groove covered by the printing plate with applicable minimum breadth; a mat is bonded on the plate tail batten pressing surface that presses the printing plate; and the mat has the gas groove dead against the circumferential direction of the photo drum surface and a gas plug matching with the shape and the size of the cross section of the gas groove. The utility model can prevent effectively gas leaking during the photo drum adhesion printing plate, and the printing plate can not only make laser scan imaging in high speed rotation, but also can be adsorbed onto the photo drum surface stably, thus the utility model has the advantage of fine imaging effect, and the applicable range of the printing plate breadth is large.
Description
Technical field
The utility model relates to a kind of direct platemaking machine in the printing industry, and particularly directly platemaking machine light rouses the anti-gas-leak device that adsorbs forme.
Background technology
Directly platemaking machine be a kind of can be the graph text information of handling through computer digital, output to the machine that the forme that can be directly used in printing gets on the mode of laser scanning imaging.On direct platemaking machine, forme is fixed in light drum surface, finishes laser scanning imaging with the light drum in high speed rotating, therefore can it stablize, be fixed in well light drum surface, not only has influence on the output quality of graph text information, also has influence on the normal operation of direct platemaking machine.
The direct platemaking machine of existing a kind of drum type, its forme fixed system is made up of light drum, a version pressing strip device, version tail pressing strip device, wherein:
Light drum is for being loaded on the cylinder shape parts on the frame, and its enclose inside also is connected with vacuum system, and outside surface is carved with air drain and air drain bottom surface and is distributing and can link up the inner air hole of light drum.When forme by automatic transport or manual when being placed into light drum surface and going up, by vacuum pump aspirate into the inner negative pressure of vacuum of the light drum of vacuum, air drain by the band air hole acts on the forme, makes forme be adsorbed in light drum surface.
A version pressing strip device contains a version press strip, a version press strip control gear.A version press strip is for axially being installed on the strip parts on light drum surface, and it is fixed at the relative position that the light drum makes progress in week, plays and push down forme version head, avoids the effect of a version perk; A version press strip control gear is loaded on light drum both sides, the action that its control version press strip lifts or depresses on light drum surface, makes a version press strip realize pushing down the purpose of forme version head.
Version tail pressing strip device contains an edition tail press strip, version tail press strip control gear, version tail press strip supporting mechanism.Version tail press strip is for axially being installed on the strip parts on light drum surface, and it can move at the relative position that the light drum makes progress in week, plays and push down forme version tail, avoids edition effect of tail perk; Version tail press strip control gear is loaded on light drum both sides, the not only control version tail press strip action of lifting and depressing on light drum surface, make edition tail press strip realize pushing down the purpose of forme version tail, also control version tail press strip realizes pushing down the purpose of the forme version tail of various breadths at edition tail press strip that relatively moves, makes that the light drum makes progress in week; Version tail press strip supporting mechanism is made up of bracing frame and the shifting chute that is arranged on light drum surface, supports to erect and strengthens edition effect of tail press strip rigidity, and shifting chute can guarantee that bracing frame is unimpeded relatively moving of light drum surface.
For the forme (length of forme on the surperficial circumferencial direction of light drum is that the width of cloth of forme is long) that can export multiple breadth, the direct platemaking machine of existing drum type, the binding domain of its corresponding maximum breadth forme in light drum surface all is carved with crisscross air drain, to satisfy absorption to various breadth formes, and this there are the following problems in actual use: 1) during the forme of the different breadths of light drum absorption, with " gas leakage " phenomenon that produces in various degree, be that outside air is under the effect of negative pressure of vacuum, it is inner to flow into the light drum by the air drain that is not covered by forme, cause the inner negative pressure of vacuum of light drum can not keep constant, thereby have influence on the consistance of the forme of different breadths, and finally have influence on the stability of image quality at light drum surface adsorption state; When 2) the light drum adsorbs the forme of the minimum breadth that is suitable for, can be the most severe because of " gas leakage " of light drum, and make the adsorption effect of forme the poorest, so when light drum high speed rotating laser scanning imaging, just might produce " flying version " phenomenon that forme is thrown out from light drum surface, it not only may break element part, also might injure the person; All can normally export for taking into account suitable various breadth formes, manufacturer all can set an appropriate vacuum to the light drum before machine dispatches from the factory, and generally no longer allows the user to regulate voluntarily; But the vacuum tightness of in fact this setting is when the output of the minimum breadth forme of correspondence, its negative pressure of vacuum often is in the critical conditions that can effectively adsorb forme, in case disadvantageous objective factors such as machine operation is lack of standardization, plant maintenance is not in place, changes in environmental conditions is big are superimposed together, the still generation, very dangerous unavoidably of " flying version " phenomenon; 3) set too highly when vacuum tightness, negative pressure of vacuum can make forme produce " depression " at the air drain place when adsorbing maximum breadth forme, and vacuum tightness is set the end, negative pressure of vacuum can not satisfy the absorption to minimum breadth forme again, so the forme breadth scope that direct platemaking machine can be exported has limitation, and " gas leakage " more makes the scope of the adjustable vacuum tightness of producer reduce, thereby has dwindled the forme breadth scope that machine is suitable for.In a word, " gas leakage " when existing direct platemaking machine light drum adsorbs forme has had influence on imaging effect and client's use, and has left accident potential, so anxious to be solved.
Summary of the invention
The utility model is to overcome existing problem in the above-mentioned prior art, and a kind of anti-gas-leak device of direct platemaking machine light drum absorption forme is provided; When it not only can guarantee the forme of the various breadths of light drum absorption no longer " gas leakage ", forme is turned round normally at the surfacing of light drum quality and machine smooth, that reliablely and stablely adsorb to improve laser imaging, but also have characteristics such as reasonable in design, simple in structure, easy for installation, that use is reliable.
The anti-gas-leak device of the direct platemaking machine light drum of the utility model absorption forme, it comprises light drum, version tail press strip, version tail press strip control gear, edition tail press strip supporting mechanism, it is characterized in that: the air hole on light drum surface only is distributed in the air drain bottom surface that can be covered by suitable minimum breadth forme; The pressure surface that version tail press strip is pushed down forme is pasted with pad, and this pad has over against the air drain of the surperficial circumferencial direction of light drum and the vent plug that is complementary with the shape and the size of air drain xsect.When light drum absorption forme, push down the version tail of forme along with version tail press strip, vent plug on the pad will embed air drain from forme version tail, the formed gas leakage mouth of the air drain xsect at forme version tail place is blocked, at this moment the air hole and the external world of the air drain bottom surface that is covered by forme are isolated fully, and be exposed to the outer air drain bottom surface air hole that do not distribute, make the no longer purpose of gas leakage of light drum thereby reach.
Above-mentioned version tail press strip, common in practice form is that an edition tailspin rotating shaft adds an edition tail pressing plate, a version tail pressing plate that wherein is used to push down forme can be the split blade type structure, also can be the full slice system structure; In the split blade type structure, version tail pressing plate comprises split blade type gas shutoff pad and the split blade type that shape and size with split blade type version tail pressing plate be complementary and presses the version pad pushing down the pad of pasting on the pressure surface of forme; In the full slice system structure, version tail pressing plate is in that to push down the pad of pasting on the pressure surface of forme can be that split blade type gas shutoff pad 2c ' and split blade type are pressed a version pad 2c " combination, also can be shape and the big or small full slice system gas shutoff pad that is complementary with full slice system version tail pressing plate.
The beneficial effects of the utility model are: 1) the anti-gas-leak device of the direct platemaking machine light drum of the utility model absorption forme can make the smooth light drum surface that is adsorbed in glossily of forme of various breadths, so the stability of forme image quality is improved; 2) because of forme can reliablely and stablely be adsorbed in light drum surface, so even the forme of the minimum breadth that output is suitable for also can be avoided the generation of " flying version " accident; 3) because the light drum is air tight, so can further widen the scope that direct platemaking machine is suitable for the forme breadth; 4) the utility model keeps and utilizes the light in the existing direct platemaking machine forme fixed system to rouse the version tail press strip contained with version tail pressing strip device, version tail press strip control gear, edition tail press strip supporting mechanism, paste pad and only the distributed areas of the surperficial air hole of light drum are limited, push down at version tail press strip on the pressure surface of forme, therefore except increasing a spot of simple part, it neither destroys the structure of complete machine, do not change again or increase the origin operation operation, so help the retrofit of existing direct platemaking machine.
Description of drawings
Fig. 1 is the front view of the anti-gas-leak device of the direct platemaking machine light drum of the utility model absorption forme;
Fig. 2 and Fig. 3 are respectively node II and the node I enlarged drawings among Fig. 1;
Fig. 4～Fig. 6 is the structural drawing of the pad in the present embodiment, wherein Fig. 4 a, Fig. 4 b are respectively front view and the left views of split blade type gas shutoff pad 2c ', Fig. 5 a, Fig. 5 b are respectively that split blade type is pressed a version pad 2c " front view and left view, Fig. 6 is the front view of full slice system gas shutoff pad;
Fig. 7 and Fig. 8 are respectively that partial enlarged drawing is looked on the rocking arm 3c among Fig. 2 and the right side of bearing 3b;
Fig. 9 is the A-A cut-open view among Fig. 1, and the version tail press strip among the figure is in the position of corresponding maximum breadth forme version tail;
Figure 10 to be light drum surface coverage less or the Fig. 1 the during forme of minimum breadth in the locational cutaway view Amplified image of A-A;
Figure 11 be existing direct platemaking machine light drum surface coverage the locational cutaway view Amplified image of A-A among the Fig. 1 the during forme of less or minimum breadth.
Label declaration among the figure: 1-light drum; The 1a-cylinder; The 1b-end cap; The 1c-axle; 1c '-duct; The 1d-air drain; 1d '-air hole; 2-version tail press strip; The rotating shaft of 2a-version tailspin; 2b-version tail pressing plate; The 2c-vent plug; 2c '-split blade type gas shutoff pad; 2c "-the split blade type follower gasket; 2C
1-full slice system gas shutoff pad; 3-version tail press strip link gear; 3a-version tail side plate; The 3b-bearing; The 3c-rocking arm; The 3d-back-moving spring; 3e-pressure arm sub-agencies; 4-version tail press strip supporting mechanism; The 4a-bracing frame; The 4b-shifting chute; A 5-version press strip; The 6-forme; The air drain xsect at 7-version tail place; The 8-frame.
Embodiment
The structure of the anti-gas-leak device of the direct platemaking machine light drum of present embodiment absorption forme can see from Fig. 1～Fig. 3, Fig. 7～Figure 10 that it comprises light drum 1, version tail press strip 2, version tail press strip link gear 3, version tail press strip supporting mechanism 4.Wherein:
Light drum 1 contains cylinder 1a, is fixed in the end cap 1b at cylinder two ends, the axle 1c of close-fitting on two end cap central bore, and light drum surface is carved with crisscross air drain 1d, air drain bottom surface and is provided with and can be communicated with the inner air hole 1d ' of light drum, axle 1c and be provided with and can makes the inner duct 1c ' that is communicated with vacuum system of light drum; When forme by automatic transport or manual when being placed into light drum surface and going up, by vacuum pump aspirate into vacuum the inner negative pressure of vacuum that is produced of light drum, act on the forme by the air drain 1d that is with air hole 1d ', can make forme be adsorbed in the surface of light drum 1.
Version tail press strip 2 contains edition tailspin rotating shaft 2a that is installed in bearing 3b and goes up and can freely rotate, is fixed in edition tail pressing plate 2b in edition tailspin rotating shaft in bearing hole; Version tail press strip is subjected to edition control of tail press strip link gear 3, and the relative position that makes progress in week at the light drum can move, and can push down the version tail of the forme of different breadths.
Version tail press strip link gear 3 contains can be with the version tail side plate 3a of end cap 1b clutch, be fixed in bearing 3b on edition tail side plate, be fixed in edition rocking arm 3c at tailspin rotating shaft 2a two ends, is connected edition tail side plate and rocking arm back-moving spring 3d, be installed in the pressure arm sub-agencies 3e on the frame 8, wherein the pressure arm sub-agencies is the actuating unit of a band stepper motor; When version tail press strip link gear 3 is not worked, back-moving spring 3d is pressed on light drum surface or the forme an edition tail pressing plate 2b by rocking arm 3c and version tailspin rotating shaft 2a, version tail side plate 3a also engages with end cap 1b simultaneously, at this moment version tail press strip 2 is fixed together with light drum 1, when the bulging rotation of light, a version tail press strip rotates synchronously, fixes at the bulging relative position that makes progress in week of light; During 3 work of version tail press strip link gear, pressure arm sub-agencies 3e depresses rocking arm 3c one end (shown in the arrow on the rocking arm right-hand member among Fig. 7) and makes it anglec of rotation ∮ and make an edition tail pressing plate 2b also rotate equal angular ∮ and lift from light drum surface or forme by version tailspin rotating shaft 2a, version tail side plate 3a and end cap 1b are also separated simultaneously, at this moment version tail press strip 2 disconnects with two affixed points of light drum 1, when the bulging rotation of light, a version tail press strip is parked in original position, can regulates at the bulging relative position that makes progress in week of light.
Version tail press strip supporting mechanism 4 contains four bracing frame 4a, is arranged on lip-deep four the shifting chute 4b of light drum; Bracing frame 4a can improve the version tail press strip 2 of strip rigidity, make it be difficult for flexural deformation; Shifting chute 4b can guarantee that bracing frame 4a carries out smoothly relatively moving of light drum surface.
Version tail press strip link gear 3 in the present embodiment, version tail press strip supporting mechanism 4 are identical with version tail press strip link gear, version tail press strip supporting mechanism in the existing computer direct platemaking machine, but light drum 1 and version tail press strip 2 are different with light drum and edition tail press strip in the existing computer direct platemaking machine; Its difference is:
1) as shown in figure 10, when the light drum 1 in the present embodiment was fixed the forme of less or minimum breadth, air hole 1d ' only was distributed in the air drain 1d bottom surface that can be covered by suitable minimum breadth forme 6, the air drain 1d bottom surface that is not covered by forme does not have air hole 1d '; Existing light drum 1 as shown in figure 11 is when the forme of fixing less or minimum breadth, and the bottom surface of the air drain 1d that air hole 1d ' has distribution in whole bottom surfaces of air drain 1d, do not covered by forme also has air hole 1d '.
2) the 2 contained version tail pressing plate 2b of the version tail press strip in the present embodiment are the split blade type structure, its pressure surface of pushing down forme all is pasted with pad, wherein with that paste is as shown in Figure 4 split blade type gas shutoff pad 2c ' on the pressure surface of the corresponding ten a slice version tail pressing plate 2b of the surperficial circumferencial direction air drain of light drum, have one on the pressure surface of this gas shutoff pad over against air drain and the vent plug 2c that is complementary with the shape and the size of air drain xsect; What paste on the pressure surface of 14 version tails of its excess-three pressing plate 2b is that as shown in Figure 5 split blade type is pressed a version pad 2c ".And the pressure surface of the contained version of existing version tail press strip tail pressing plate is not pasted pad.
After direct platemaking machine is started working, control program can transfer to version tail press strip 2 light drum week earlier upwards greater than certain long position of the forme width of cloth according to the size of forme breadth, forme by automatic transport or manual be placed on the light drum surface and fixed by a version press strip 5 and negative pressure of vacuum successively after, control program can transfer to version tail press strip 2 the version tail place of forme again, by version tail pressing plate 2b the version tail is pressed on the light drum surface; From Figure 11, see, the gas leakage channel of existing light drum 1 has two: first be less or the forme of minimum breadth 6 overlay areas outside the air hole 1d ' of air drain 1d bottom surface---just be distributed in edition air hole 1d ' on tail press strip 2 right sides, second is the air drain xsect 7 formed gas leakage mouthful at 6 editions tail places of forme.From Figure 10, can see, after adopting present embodiment to prevent the device of light drum gas leakage, when less or minimum breadth forme 6 covers light drum 1 surperficial going up, because air hole 1d ' only is distributed in the air drain 1d bottom surface that can be covered by the forme 6 of minimum breadth---just only be distributed in the air drain 1d bottom surface in edition tail press strip 2 left sides, so first " gas leakage " channel of ambient air stream light inlet drum 1 inside no longer exists; Simultaneously again because version tail pressing plate 2b is pressed on light drum surface when going up with the version tail of forme 6, except split blade type follower gasket 2c " be pressed on the forme 6 and only play a part to push down the forme 6; split blade type gas shutoff pad 2c ' is when compressing forme 6; the vent plug 2c on it also embeds in the air drain 1d, blocks the air drain xsect 7 formed gas leakage mouths at forme version tail place, so second inner " gas leakage " channel of ambient air stream light inlet drum also no longer exists; Therefore, the purpose that the anti-gas-leak device of present embodiment no longer leaks gas in the time of can reaching light drum absorption forme, make the inner negative pressure of vacuum of light drum keep stable, thereby guarantee forme effective absorption during laser imaging in high speed rotating.
The contained version tail pressing plate of version tail press strip in the foregoing description is the structure that is split blade type, so the pad that sticks on this split blade type version tail pressing plate is Fig. 4 and the split blade type structure that is complementary with shape version tail pressing plate and size shown in Figure 5, that is a split blade type gas shutoff pad 2c ' and a split blade type pressure version pad 2c "; If version tail pressing plate is to adopt the full slice system structure, then sticking on pad on the full slice system version tail pressing plate can be that above-mentioned split blade type gas shutoff pad 2c ' and split blade type pressed a version pad 2c " combination; also can be as shown in Figure 6 have 11 vent plugs (only express four vent plugs among Fig. 6, in fact the quantity of this vent plug is identical with air drain quantity on the surperficial circumferencial direction of light drum) and with the shape and the big or small full slice system gas shutoff pad 2C that is complementary of full slice system version tail pressing plate
1
Although the direct platemaking machine of existing drum type, because of manufacturer different, the structure of its edition tail pressing strip device is difference to some extent, do not adopt link gear form, version tail press strip in the present embodiment not to adopt the version tailspin rotating shaft in the present embodiment to add edition tail pressing plate etc. as version tail press strip control gear, but as long as version tail press strip can move at the relative position that the light drum makes progress in week, and can depress and lift on light drum surface, then the anti-gas-leak device of the direct platemaking machine light drum of the utility model absorption forme all can be implemented.
Claims (3)
1. a direct platemaking machine light rouses the anti-gas-leak device that adsorbs forme, it comprises light drum (1), version tail press strip (2), version tail press strip control gear (3), version tail press strip supporting mechanism (4), it is characterized in that: the air hole on light drum (1) surface (1d ') only is distributed in air drain (1d) bottom surface that the minimum breadth forme that can be suitable for covers; The pressure surface that version tail press strip is pushed down forme is pasted with pad, and this pad has over against the air drain of the surperficial circumferencial direction of light drum and the vent plug (2c) that is complementary with the shape and the size of air drain xsect.
2. the anti-gas-leak device of direct platemaking machine light drum absorption forme according to claim 1 is characterized in that: said pad is that the split blade type gas shutoff pad that is complementary of shape and the size with split blade type version tail pressing plate (2c ') and split blade type press version to fill up (2c ").
3. the anti-gas-leak device of direct platemaking machine light drum absorption forme according to claim 1 is characterized in that: said pad is the full slice system gas shutoff pad (2C that shape and the size with full slice system version tail pressing plate is complementary
1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201080865U CN201060366Y (en) | 2007-04-11 | 2007-04-11 | Anti-leakage device for optical drum adsorption forme of direct plate-making machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201080865U CN201060366Y (en) | 2007-04-11 | 2007-04-11 | Anti-leakage device for optical drum adsorption forme of direct plate-making machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060366Y true CN201060366Y (en) | 2008-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201080865U Expired - Lifetime CN201060366Y (en) | 2007-04-11 | 2007-04-11 | Anti-leakage device for optical drum adsorption forme of direct plate-making machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060366Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097510A (en) * | 2017-05-22 | 2017-08-29 | 杭州科雷机电工业有限公司 | The automatic loading and unloading plate structure and its handling version method of a kind of soft version |
-
2007
- 2007-04-11 CN CNU2007201080865U patent/CN201060366Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097510A (en) * | 2017-05-22 | 2017-08-29 | 杭州科雷机电工业有限公司 | The automatic loading and unloading plate structure and its handling version method of a kind of soft version |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou CRON Machinery & Electronics Company Ltd. Assignor: Xiang Jianlong Contract record no.: 2010330001311 Denomination of utility model: A novel gas leak-proof device for a drum adsorption plate of an external drum type computer to plate Granted publication date: 20080514 License type: Exclusive License Record date: 20100712 |
|
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU CRON MACHINERY + ELECTRONICS CO., LTD. Free format text: FORMER OWNER: XIANG JIANLONG Effective date: 20111206 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111206 Address after: Hangzhou City, Zhejiang province 311215, Xiaoshan economic and Technological Development Zone, Road No. 99 Patentee after: Hangzhou CRON Machinery & Electronics Company Ltd. Address before: Jin Xiaoshan economic and Technological Development Zone Road Xiaoshan District of Hangzhou City, Zhejiang province 311215 No. 99 Patentee before: Xiang Jianlong |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |
|
| CX01 | Expiry of patent term |