CN1074142C - Exposure device - Google Patents
Exposure device Download PDFInfo
- Publication number
- CN1074142C CN1074142C CN 95117387 CN95117387A CN1074142C CN 1074142 C CN1074142 C CN 1074142C CN 95117387 CN95117387 CN 95117387 CN 95117387 A CN95117387 A CN 95117387A CN 1074142 C CN1074142 C CN 1074142C
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- Prior art keywords
- cleaning roller
- printed panel
- exposure
- film
- cleaning
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- 238000004140 cleaning Methods 0.000 claims abstract description 81
- 239000000428 dust Substances 0.000 claims abstract description 15
- 239000002390 adhesive tape Substances 0.000 claims abstract description 12
- 238000007639 printing Methods 0.000 claims abstract description 6
- 230000033001 locomotion Effects 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 17
- 230000003068 static effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 239000007787 solid Substances 0.000 description 11
- 239000011889 copper foil Substances 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005401 electroluminescence Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000014616 translation Effects 0.000 description 1
Images
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- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Abstract
The present invention relates to a printing plate exposure device capable of automatically cleaning a negative film, which is characterized in that a cleaning roller assembly is arranged on a sucking plate and 30; when a gear 44 is driven by a motor (which is not drew out) to rotate, gear racks 46, 47 are moved, which enables a cleaning roller 56 to rise and contact an upper negative film 2, and at the same time, a cleaning roller 57 is descended to contact a lower negative film 1; under the actions of a spring 52 and a spring 53, rollers and negative films form a press state, and a slide plate 36 is moved towards right under the press state; at the same time, the cleaning rollers 56, 57 are rotated, and dust on the negative films 1, 2 is removed by stickiness areas on the outer circumferences of the cleaning rollers 56, 57. The present invention also has a stickiness adhesive tape roller which can contact the two cleaning rollers 56, 57 and remove the dust stuck on the cleaning rollers 56, 57.
Description
The present invention relates to a kind of exposure device, it is used for the graph exposure on a pair of egative film to two sides of a bar printing plate.
When making a bar printing wiring board, normally with ultraviolet ray through an egative film that has required figure, graph exposure to a piece is had on the resin printed panel of Copper Foil on the whole surface of respective side.Carry out etch then, remove from printed panel and shine ultraviolet Copper Foil zone, then make a printed-wiring board (PWB) with copper figure, but the copper figure is just in time opposite with figure on the egative film.Or remove copper beyond the exposure area with the etch method, and finally forming a printed-wiring board (PWB) with copper figure, copper figure and the egative film figure of this moment are identical.
When stating the step of exposure in the manufacture process on the implementation, if chip is arranged in the exposure area, dust and so on dust, they will hinder the exposure of required figure attached on printed panel or the egative film, form rejected region in line pattern.This just may reduce the quality of manufactured goods.Therefore, traditional way is that when changing egative film, perhaps after operation continuity a period of time, the operator clears up upper ledge, lower frame by hand to egative film.
As mentioned above, in traditional method, the cleaning of upper and lower frames and egative film need be carried out manual operations, and this operation extremely bothers, and removes dust fully and will expend a lot of times.In the large scale exposure device of the big printed panel of exposure, perhaps in baroque exposure device, more difficult at inner manual finishing upper and lower frames of device and egative film, so be difficult to implement cleaning fully.In addition, owing to must clear up when changing egative film each time, work efficiency is low especially under the situation of multi-varieties and small-batch.
Therefore the objective of the invention is: provide a kind of and can clear up egative film automatically and do not need manual exposure device.
In order to achieve the above object, exposure device of the present invention comprises: an exposure region; A printed panel memory block and a conveyer.Described exposure region is being placed up and down under the state of a pair of egative film at a bar printing plate, can make the respective side of this bar printing plate obtain exposure simultaneously; Described printed panel memory block and exposure region are adjacent, and a unexposed printed panel is supplied among the memory block; And described conveyer can be at exposure region and this transmission printed panel of printed panel memory block; Its characteristics are, exposure region comprises that a lower frame, upper ledge, a pair of exposure light source and one confine a device, and described lower frame is being fixed lower master film; Described upper ledge is relative with lower frame and fixing and winding the film; Described exposure light source can make two sides of printed panel obtain exposure by two egative films that are arranged between two frames; And a described device of confining can be regulated two relevant position relations between the frame, and in addition, the conveyer of described exposure device comprises a cleaning roller sub-component, and it can move both vertically and horizontally between two frames, so that clear up two egative films.
Described cleaning roller sub-component comprises a pair of cleaning roller and a driving mechanism, and described cleaning roller has an adhesive region that is used for adhering to dust and by rotatably mounted at its excircle; And described driving mechanism can make one the cleaning roller move upward the contact wind the film, another cleaning roller moves downward the contact lower master film, driving mechanism makes the cleaning roller return original position after the described egative film of cleaning, the cleaning roller makes the adhesive region of dust attached to the roller excircle when contacting with egative film and rotating.
In addition, described exposure device also further comprises an adhesive tape roller, and it can contact the cleaning roller and remove the dust that adheres on the roller.
Below with reference to accompanying drawings, introduce most preferred embodiment of the present invention in detail, so that more clear to purpose of the present invention and characteristics.
Fig. 1 is the synoptic diagram of exposure device first most preferred embodiment of the present invention.
Fig. 2 is the planimetric map of exposure device major part shown in Figure 1.
Fig. 3 is the lower frame of exposure device shown in Figure 1 and the amplification view of printed panel.
Fig. 4 is the planimetric map that the partial cutaway of Fig. 3 is gone.
Situation when Fig. 5 draws cleaning exposure device egative film of the present invention.
Fig. 6 draws exposure device of the present invention at the state of cleaning after the egative film.
Fig. 7 situation that exposure device of the present invention is cleared up the cleaning roller period of the day from 11 p.m. to 1 a.m of this device of drawing.
Fig. 8 is the lower frame of the present invention's second most preferred embodiment and the amplification view of printed panel.
In the drawings, label 1 is a lower master film, and 2 for winding the film, 3 is printed panel, and 4 is exposure region, and 5 is the printed panel memory block, 6 is conveyer, and 8 is lower frame, and 9 is upper ledge, 10 is first alignment device (confining a device), and 12,13 is exposure light source, 40 is the cleaning roller sub-component, and 44 is transmission gear (drive unit), and 46,47 is tooth bar (drive unit), 56,57 are the cleaning roller, and 58 is the adhesive tape roller.
Introduce first most preferred embodiment of the present invention at first in conjunction with the accompanying drawings.
Fig. 1 draws as the exposure device of the present invention's first most preferred embodiment.As shown in Figure 1, 2, this exposure device comprises an exposure region 4, printed panel memory block 5, a conveyer 6 and a cleaning roller sub-component 40, when a pair of egative film 1 and 2 is placed on the respective side of printed panel 3, described exposure region 4 can be simultaneously with the graph exposure on a pair of egative film 1 and 2 on the respective side of printed panel 3; Described printed panel memory block 5 is adjacent with exposure region, and a unexposed printed panel is supplied among the memory block; Described conveyer 6 can transmit printed panel between exposure region 4 and printed panel memory block 5; And described cleaning roller sub-component 40 just is installed on the conveyer 6.
An XY θ worktable 16 is fixed on the bearing 7, is placing lower frame 8 on the end face of worktable 16. Handle motor 16a, 16b and 16c (see figure 2) and can make XY θ worktable regulate lower frame 8 in the position of X, Y or θ direction, the transparent panel 14 that a glass is done in lower frame 8 clampings, and the position of transparent panel 14 is relative with an opening 7a of bearing 7.Shown in Fig. 3,4 of magnification ratio, make a transparency electrode 15 that contains indium tin oxide (ITO) at the end face of transparent panel 14.Transparency electrode 15 has a breach 15a and a protuberance 15b, and described protuberance 15b is used for connecting the electrode (not shown) of an external power source.Lower master film 1 just is placed on the transparency electrode 15, and egative film 1 top is placed a battery lead plate 22 again, and its position is relative with breach 15a.The part of battery lead plate 22 is overlapped on the web joint 22a of lower master film 1.And web joint 22a links to each other with another electrode (not shown) of described external power source.Therefore, between battery lead plate 22 and transparency electrode 15, can set up potential difference (PD), thereby produce static.Transparency electrode 15 and battery lead plate 22 are used as absorption and stationary installation, and it adsorbs and be fixed on the printed panel 3 of transparent panel 14 end faces by means of the static that produces by lower master film 1.
First alignment device 10 is made up of XY θ worktable 16, a pair of ccd video camera 17 and an alignment light source 18.Ccd video camera is arranged in bearing 7 inside, and they can move between aligned position shown in Figure 1 and a retracted position, and described retracted position is to be shunk back to the left and right respectively by Fig. 1 position.According to the picture intelligence of ccd video camera with the method acquisition of the irradiates light that receives self-aligned source 18, mobile XY θ worktable 16, make lower frame 8 adjusted, so that registration mark of lower master film 1 aligns with 2 the registration mark of winding the film with respect to the displacement energy of upper ledge 9.
Printed panel memory block 5 has printed panel profile alignment device 20, when a unexposed printed panel is deposited in, makes its coarse positioning by printed panel profile alignment device 20 earlier.Printed panel profile alignment device 20 makes a suction disc 30 (hereinafter will be described) that printed panel 3 can be transmitted device 6 fixed bit reliably in addition.And carry out fine alignment, thereby can make printed panel 3 reach the degree of accurate aligning in the location of exposure position by the XY θ worktable 31 that conveyer 6 provides.In this embodiment, the coarse positioning regulating error is about: depart from reference position ± 1 millimeter (reference position " and refer to and lower master film 1 corresponding position, printed panel from then on the position is parallel move a predetermined value after, just can accurately locate with respect to lower master film 1).
Printed panel profile alignment device 20 comprises: along the longitudinal register pin 23 of directions X, along the located lateral pin 24 and the sub-forwarder 25 of a bench roller of Y direction.The reference position (Fig. 1,2 right side) that is used for the printed panel front end determines that according to the printed panel size of knowing in advance longitudinal register pin 23 just moves to this position.When printed panel 3 was deposited in, roller forwarder 25 rotated, and it is pushed ahead, and just stopped when printed panel 3 contacts the longitudinal register pin 23 of directions Xs location.Then, the located lateral pin 24 along the Y direction moves towards printed panel 3 simultaneously.When any end (upper end in Fig. 2 or lower end) of printed panel 3 when touching located lateral pin 24, register pin 24 just promotes printed panel 3 forward, also contacts the located lateral pin until its other end and just stops.That is to say that the motion of printed panel 3 stops at located lateral pin 24 parts that its two ends (top and bottom among Fig. 2) all contact Y direction location.
Now, introduce the conveyer 6 that transmits printed panel with reference to Fig. 1 and 2.Article one, synchronous belt 39 is stretched on a cylinder 28 and another cylinder 29, and cylinder 28 is driven by a motor (not shown).On one section timing belt, fixing one slide-plate 26.Slide plate 36 has can be along the orienting lug 36a of track 38 slips.Cylinder 28,29 and track 38 are by the organism frame fixed bearing.Fixing 37, one little XY θ worktable 31 of power cylinder on the slide plate 36 just is installed on the driving cylinder bar of power cylinder.A suction disc 30 is housed on the XY θ worktable 31, has many suctions hole (not shown) on the suction disc 30 so that hold the end face of printed panel 3.Also fixing an electroluminescence (EL) element 26 on the bottom surface of suction disc 30, it does not hinder the absorption of printed panel 3.
Because above-mentioned arrangement, slide plate 36 can rotate transverse movement in Fig. 1 under the driving at cylinder 28, XY θ worktable 31 can be done vertical movement with respect to slide plate 36 under power cylinder 37 effects, and suction disc 30 can be regulated the position of X, Y or θ direction under the manipulation of XY θ worktable 31.
Because above-mentioned arrangement, when slide plate 36 motions, cleaning roller sub-component 40 just laterally moves thereupon.When gear 44 during by a motor (not shown) driven in rotation, connection shaft 48, supporting member 50, bolster 54 and cleaning roller 56 raise together in company with tooth bar 46.At the same time, connection shaft 49, supporting member 51, bolster 55 and cleaning roller 57 reduce together in company with tooth bar 47.In this case, if the motor backward rotation, cleaning roller 56,57 just descends respectively and rises, and is returned to reference position.
Preamble has been introduced the general profile of utilizing the printed panel 3 that said apparatus exposes.By Fig. 1-4 as seen, described printed panel 3 comprises an epoxy resin plate body, the steel foil that forms, the resene solid film that covers copper foil surface and is coated on two polyester protective seams 34 on the side on the whole surface of plate body two sides.Protective seam 34 is not to cover printed panel 3 fully, reserves about 5 millimeters edge but leave the printed panel neighboring.In the accompanying drawing plate body, Copper Foil and fixed film are drawn as one.Described solid film is as photoresist.
Introduce the working condition of the present invention's first most preferred embodiment below.
Before lower frame 8 and upper ledge 9 are installed to this exposure device, earlier with adhesive tape with lower master film 1 with wind the film and 2 be installed in respectively on the transparent panel 9a of the transparent panel 14 of lower frame 8 and upper ledge 9.Then battery lead plate 22 is placed on the lower master film 1.Placement location is the inside 2-3 millimeter of an outward flange from printed panel 3.According to mentioned above, expose in the solid film surface zone of the nearly 5 millimeters width in printed panel 3 neighborings, battery lead plate 22 should be placed to such an extent that contact with this zone.
Then, lower frame 8 is fixedly mounted on the XY θ worktable 16, upper ledge 9 is installed on the upper ledge clamping device 27.Utilize z axis power cylinder 11 to adjust the height of upper ledge 9 again, the neutral gear of guaranteeing to go up between the lower master film 1,2 allows cleaning roller sub-component 40, suction disc 30, slide plate 36 and power cylinder 37 to pass through.
Introduce the process of two egative films 1,2 of cleaning below.Suction disc 30 at conveyer 6 does not adsorb under the situation of printed panel, and slide plate 36 drives right lateral by the motor (not shown).When cleaning roller sub-component 40 arrived between two frames 8,9, the sensor (not shown) of limit switch and so on was excited, so that start the motor (not shown) of another driven wheel 44.As mentioned above, this just makes cleaning roller 56 raise and 2 contact with winding the film, and contacts (see figure 5) and clear up roller 57 reductions with lower master film 1.Because supporting member 50,51 is supported by spring 52,53, cleaning roller 56,57 just compresses two egative films 1,2.Then, slide plate 36 continues right lateral under this state.Cleaning roller 56,57 rotates when compressing egative film 1,2, makes the excircle adhesive region of dust attached to roller, thereby has removed egative film 1,2 whole lip-deep dust.
Then, when the motion that perceives slide plate 36 when the sensor (not shown) of limit switch and so on has surpassed a preset distance, just determine that egative film 1,2 has cleaned out, so motor (not shown) counter-rotating, cleaning roller 56 is descended, and cleaning roller 57 rises, and leaves egative film 1,2.Then, slide plate 36 left lateral are in upper ledge 9 left positioner (see figure 6)s.In this case, upper ledge 9 reduces under the effect of upper ledge z axis power cylinder 11, and cleaning roller sub-component 40 raises under the effect of conveyer power cylinder 37, so that cleaning roller 56,57 contacts adhesive tape roller 58 (see figure 7)s simultaneously.Then, the motor (not shown) drives adhesive tape roller 58, makes attached to the dust of cleaning roller 56,57 excircles to be removed by transmission.Last upper ledge 9 raises, and slide plate 36 reductions reset.
After the cleaning of the cleaning of finishing egative film 1,2 according to the method described above and cleaning roller 56,57, first alignment device 10 is aimed at upper ledge 9 and lower frame 8, that is to say, when ccd video camera 17 is positioned aligned position shown in Figure 1, alignment light source 18 is opened, so that drive XY θ worktable 16 according to picture signal, regulate the position of lower frame 8 with respect to upper ledge 9, the registration mark that makes lower master film 1 aligns with 2 the registration mark of winding the film, and picture signal described herein is to receive the method for the irradiates light of self-aligned source 18 to obtain by ccd video camera 17 usefulness.
Then, to transparency electrode 15 and battery lead plate 22 power supplies, thereby produce static.Under electrostatic interaction, egative film 1 is attracted on the transparent panel 14 of lower frame 8.
In addition, the unexposed printed panel 3 that is supplied to printed panel memory block 5 carries out coarse positioning by printed panel profile alignment device 20.As mentioned above, be to realize along the location of directions X, and be to realize by the method for mobile located lateral pin 24 until their contact print plate 3 two ends along the location of Y direction by the method that printed panel 3 is moved ahead until contact longitudinal register lock 23.
After coarse positioning was finished, printed panel 3 was by suction disc 30 vacuum suction.In this state, drive a motor (not shown) so that preset distance of slide plate 36 translations, and be positioned between the egative film 1,2.Then, start cylinder 37, reduce XY θ worktable 31, make the gap between printed panel 3 and the lower master film 1 become 1 millimeter or littler.In this state, utilize second alignment device 19, printed panel 3 and lower master film 1 are aimed at.Specifically, the sign of printed panel 3 and lower master film 1 is the light that utilizes EL element 26 to send, and is recognized by ccd video camera 17.After this, regulate, printed panel is alignd with the sign of lower master film by the position of 31 pairs of printed panels 3 of XY θ worktable.
After second alignment device 19 was printed panel 3 and lower master film 1 aligning, printed panel 3 further descended, and closely contacts with lower master film 1.As mentioned above, in case set up potential difference (PD) between transparency electrode 15 and battery lead plate 22, static will produce.Particularly, because battery lead plate 22 contacts with the solid film of printed panel 3, this solid film is extremely thin and insulating capacity is relatively low, thereby battery lead plate 22 can be conductivity to Copper Foil.So, in a passage, produced static, this passage from the Copper Foil of battery lead plate 22 conductings, through protective seam 34 and lower master film 1, until transparency electrode 15.Described static is 1 absorption of printed panel 3 and lower master film and be fixed on transparency electrode 15 in other words on the lower frame 8.Thereby eliminated the possibility that printed panel moves.
Then, suction disc 30 turns back to printed panel memory block 5 under the motor (not shown) drives.Then, upper ledge 9 is driven by z axis power cylinder 11 and descends, and making winds the film 2 closely contacts with printed panel 3 end faces.After this, lower master film 1 and wind the film 2 respectively with the bottom surface and the tight state of contact of end face of printed panel 3 under, the ccd video cameras 17 in the exposure region 4 are withdrawn to the left and right, leave aligned position shown in Figure 1.
Open up and down exposure light source 12 and 13 in this state, the figure of egative film 1,2 is exposed simultaneously on the respective surfaces of printed panel 3.
After printed panel took out from exposure device, first heat drying removed protective seam 34 and steeps to go in the etchant again, removes solid film and Copper Foil in the exposure area.Or remove solid film and Copper Foil outside the exposure area, this depends on the type of used solid film.So formed copper clad patterns.Then, after solid film is all removed,, cover a protective seam (not shown) at the installation circuit component and on as the copper clad patterns outside the zone of terminals in order to finish a printed circuit board.When making multilayer board, polylith has been removed the printed panel of solid film after forming copper clad patterns overlapping and be fixed together, then at a plurality of upper and lower surface protective mulches.
When original printed panel was sent to exposure region, the printed panel 3 that next will be exposed just was supplied to the printed panel memory block, so but with regard to continuous exposure polylith printed panel.
According to the present invention, because cleaning roller sub-component 40 is installed in and is sent to printed panel 3 on the conveyer 6 of exposure region 4 from printed panel memory block 5, motion by means of slide plate 36, egative film 1,2 is just cleared up automatically, manual finishing operation in original technology no longer needs, therefore clearance time is short, and is very effective.In addition, because a pair of cleaning roller 56,57 can be done vertical movement under the driving mechanism effect of gear 44 and tooth bar 46,47 compositions, just can closely draw two cleaning rollers 56,57 in normal condition, make it not disturb the transmission of printed panel, only the time just stretch out two cleaning rollers contact egative films 1 and 2, size that therefore needn't aggrandizement apparatus in cleaning.Because connecting gear is operation automatically under the cooperation of sensor, and operation is more simplified.
Because cleaning roller 56,57 itself also can be cleared up by the adhesive tape roller 58 that can contact with them, just can carry out the cleaning work of egative film 1,2 with always clean cleaning roller 56,57.
In addition, in the above-described embodiments, egative film is just cleared up when exchange, can programme, so that clear up egative film 1 and 2 regularly in a schedule time of many printed panels of exposure.In this case, the automatic operation of not interrupting exposure device just can be carried out the egative film cleaning.In addition, in exposure device of the present invention, upper and lower frames 9 and 8 also can obtain cleaning, only needs to move cleaning roller sub-component 40 and get final product under the situation that uneasiness is reloaded.
By convention, when lower master film 1 contacted with printed panel 3, owing to be subjected to air influence therebetween, printed panel slided on egative film easily and causes displacement.The invention described above embodiment then in contrast, this be because, the generation of static electricity suction no longer slides and displacement printed panel 3.Particularly, owing to there is electric field to pass through lower master film 1, be applied to printed panel solid film surface electrodes in contact plate 22 and be positioned on the transparency electrode 15 of printed panel 3 belows, in the passage that passes printed panel Copper Foil and lower master film 1, produced static, so can there be enough electrostatic attractions to act on printed panel 3 and the lower master film 1.Therefore, the very thin printed panel (for example thickness is about 0.4 millimeter printed panel) that mechanical grip is very difficult utilizes static also to be easy to be fixed.In addition, adopt the method for open and close transparency electrode 15 and battery lead plate 22 power supplys can adsorb or discharge printed panel 3 easily, therefore the printed panel after the exposure also is easy to be removed.
Fig. 8 second most preferred embodiment of the present invention that draws.No longer introduce with member identical among Fig. 1.
In a second embodiment, on transparent panel 14, make an ito transparent electrode 15, on transparency electrode 15, further use sputter SiO again
2Method make a protective seam 35.This is by SiO
2The protective seam of making 35 covers on the full surface of transparent panel 14, and this surface is exactly the surface that forms transparency electrode 15.
According to this embodiment, (500-2,000V), so that produce static, by lower master film 1 absorption printed panel 3, high voltage also can be blocked by protected seam 35, will never be transferred to the user, therefore operates fool proof even apply high voltage on transparency electrode 15.
Advantage of the present invention is:
As mentioned above, owing to the conveyer that printed panel is sent to exposure region from the printed panel memory block is equipped with the cleaning roller sub-component, egative film can be cleared up automatically, no longer need the labor cleaning's operation in the prior art, so cleaning work is simple and convenient, and is very effective.
In addition, because a pair of cleaning roller can vertical movement under the drive unit effect, this just can be only stretch out when the cleaning the cleaning roller, contact with egative film, and this can closely draw in clearing up roller in normal operating conditions, so that do not disturb the transmission of printed panel.
Also have, owing to have the adhesive tape roller that can contact the cleaning roller, egative film can be cleared up by always clean cleaning roller.
Claims (2)
1. exposure device of making printed-wiring board (PWB), it comprises an exposure region, a printed panel memory block and a conveyer, described exposure region is being placed up and down under the state of a pair of egative film at a bar printing plate, can make the respective side of described printed panel obtain exposure simultaneously; Described printed panel memory block is adjacent with described exposure region, and a unexposed printed panel is supplied among the memory block; And described conveyer can transmit described printed panel between described exposure region and described printed panel memory block, it is characterized in that described exposure region comprises that a lower frame, upper ledge, a pair of exposure light source and one confine a device, described lower frame is being fixed lower master film; Described upper ledge is relative with described lower frame and fixing and winding the film; Described exposure light source can make two sides of described printed panel obtain exposure by described two egative films that are arranged in described two frames; And a described device of confining can be regulated relevant position relation between described two frames; Described conveyer comprises a cleaning roller sub-component, it can transverse movement between described two frameworks, and can be between two frameworks along the direction to-and-fro movement of vertical frame, so that clear up described two egative films, described cleaning roller sub-component comprises a pair of cleaning roller and a driving mechanism, and described cleaning roller has an adhesive region that is used for adhering to dust and by rotatably mounted at its excircle; And moving upward a described cleaning roller, described driving mechanism contacts with winding the film, another described cleaning roller is moved downward with lower master film to be contacted, this driving mechanism makes described a pair of cleaning roller homing after the described egative film of cleaning, wherein said a pair of cleaning roller with described on when lower master film contacts and rotates, make the adhesive region of dust attached to the roller excircle.
2. exposure device according to claim 1, it is characterized by the end that an adhesive tape roller is installed in the exposure region upper ledge, described cleaning roller sub-component raises under the effect of conveyer, make described a pair of cleaning roller contact with the adhesive tape roller simultaneously, the adhesive tape roller rotates the dust of removing cleaning roller excircle, described then cleaning roller sub-component homing under the effect of conveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95117387 CN1074142C (en) | 1995-09-29 | 1995-09-29 | Exposure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95117387 CN1074142C (en) | 1995-09-29 | 1995-09-29 | Exposure device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1146564A CN1146564A (en) | 1997-04-02 |
| CN1074142C true CN1074142C (en) | 2001-10-31 |
Family
ID=5081197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95117387 Expired - Fee Related CN1074142C (en) | 1995-09-29 | 1995-09-29 | Exposure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1074142C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458927B (en) * | 2018-03-05 | 2020-05-26 | 杭州长川科技股份有限公司 | Fingerprint module self-cleaning testing mechanism and self-cleaning testing method |
| CN111842257A (en) * | 2019-04-30 | 2020-10-30 | 志圣工业股份有限公司 | Automatic negative film cleaning device |
-
1995
- 1995-09-29 CN CN 95117387 patent/CN1074142C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1146564A (en) | 1997-04-02 |
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