A kind of printing localization tool of printing machine
Technical field
The utility model relates to a kind of printing localization tool of printing machine.
Background technology
In the prior art; general screen printer usually includes a platform body and and is arranged at feeding mechanism in this platform body, printing mechanism and discharging mechanism respectively; wherein feeding mechanism and discharging mechanism usually can be provided with bracing frame can the charging tray (or claiming Tray dish) of accommodating printed thing in order to put, this printing mechanism usually includes a printing localization tool and and is positioned at wire mark mechanism above this printing localization tool.Again according to the difference of board automaticity, this screen printer also may can include a mechanical arm in order to take, put material (i.e. printed thing).At this, in order to the convenience illustrated, this printed thing is for the cover glass of contact panel (TouchPanel) (CoverGlass), the such as printing of its frame ink of this cover glass is one of embody rule of screen printer, printed thing picks and places on the printing localization tool of this printing mechanism by feeding mechanism by this mechanical arm by the motion flow of its printing, by wire mark mechanism, presswork is carried out to printed thing simultaneously, pick and place to discharging mechanism by mechanical arm by completing the printed thing after printing again, in addition, in order to promote printed thing be placed to printing localization tool time position precision, there is industry that one pre-locating mechanism can be set between this feeding mechanism and printing mechanism again in order to carry out Primary Location (i.e. position correction) to printed thing.
The printing localization tool of existing printing mechanism generally comprises and is fixed on the first pedestal in platform body and the second pedestal, wherein the first pedestal is with the locating notch of a L-type, and the second pedestal is located at this locating notch place, thus make jointly to be formed with between the first pedestal and the second pedestal one can the putting groove of accommodating printed thing, and be provided with in this putting groove x applied to the x of clamping force to clamp system and y to clamp system to described printed thing.Second pedestal has one for placing the storing platform of printed thing, and the upper surface of this storing platform gathers and is provided with for adsorbing the fixing many suckers being printed thing.The printing localization tool of this traditional structure can be the introduction of the Chinese utility model patent of CN201320682348 see the patent No..
During embody rule; first will be printed thing (as cover glass; be generally rectangle) to be placed in putting groove and to be in the first pedestal and put on the table top of platform; then x is to clamp system and y to clamp system action; and printed thing of conflicting moves to the L-type locating notch place on the first pedestal along x-axis and y-axis direction, and then printed thing is fixedly clamped.To be printed thing by the vacuum pressure of sucker afterwards to adsorb and fix, then unclamp x to clamp system and y to clamp system, carry out follow-up printing action.
But when adopting press printing product (as the cover glass) of above-mentioned this traditional printing localization tool, there is following two large problems:
1, because any product all can exist certain scale error, if there is the scale error of 0.5mm in the length of cover glass to be printed and width, after rectangle cover glass has been located on this printing localization tool, the L-type locating notch that an angle of cover glass is just in time close on the first pedestal is arranged, above being in printing localization tool, wire mark mechanism is when carrying out presswork to protected glass, can only locate for benchmark carries out printing with that angle this cover glass being close to L-type locating notch, and can not locate for benchmark carries out printing with the central point of cover glass (this is because, different cover glasses is also different in the scale error of its length and width, after different cover glasses has been located on this printing localization tool, the distributing position of central point on localization tool of cover glass is also just different, therefore the central point of cover glass cannot be located by wire mark mechanism).So, after being completed for printing, cover glass is close to two limits of layout with described L-type locating notch, and can not scale error be there is on cover glass between printed layers; All 0.5mm scale errors just can only rely on the adjacent limit of two other to share, and all can not be carried on a shoulder pole by four edges, and printed dimensions error is comparatively large, and product yield is low.
If 2 cover glasses be printed are very thin; its thickness is at below 0.3mm; this sheet glass of affected by force is easy to produce surrounding and tilts distortion; the cover glass relying on the vacuum pressure putting sucker generation on platform that distortion this surrounding cannot be occurred to tilt completely be fixed; when printing, this cover glass can produce and rocks and affect printing quality.
Summary of the invention
The utility model object is: for above-mentioned technical problem, and provide a kind of printing localization tool of printing machine of new structure, it can locate the center position of printed product, thus greatly improves the printing yield of product.
The technical solution of the utility model is: a kind of printing localization tool of printing machine, comprise a base station, be located at the positioning table above this base station and displacement platform, and the displacement platform elevating mechanism for driving described displacement platform to move up and down along Z axis, described positioning table is provided with the storing platform for placing printed thing, the upper surface of this storing platform gathers and is provided with for adsorbing the fixing sucker being printed thing, described displacement platform is provided with two along X-direction spaced apart and the X-axis displacement plate that can move left and right along X-axis, two along Y direction spaced apart and can along the movable Y-axis displacement plate of Y-axis, for the X-axis displacement cylinder driving described X-axis displacement plate to move left and right along X-axis, and the Y-axis displacement cylinder driving described Y-axis displacement plate to move left and right along Y-axis, two described X-axis displacement plates and two Y-axis displacement plates assume diamond in shape distribution, and the center position of this rhombus is furnished with and is connected on described displacement platform, and two swiveling wheels that can rotate around himself central axis, the centerline axis parallel of described swiveling wheel is arranged in Z axis, be hinged with between one of them swiveling wheel with X-axis displacement plate for drive described two X-axis displacement plates along X-axis synchronous close/away from X-axis synchronising (connecting) rod, be hinged with between another one swiveling wheel with Y-axis displacement plate for drive described two Y-axis displacement plates along Y-axis synchronous close/away from Y-axis synchronising (connecting) rod, two described X-axis displacement plates are provided with the X-axis fixture block for the printed thing that is fixedly clamped along X-direction, two described Y-axis displacement plates are provided with the Y-axis fixture block for the printed thing that is fixedly clamped along Y direction.
The utility model, on the basis of technique scheme, also comprises following preferred version:
Described X-axis displacement plate is shaped with several along X-direction X-axis displacement plate bolt hole spaced apart, described X-axis fixture block is by locking being bolted on described X-axis displacement plate in described X-axis displacement plate bolt hole.
Described X-axis displacement plate is shaped with altogether two rows along X-direction described X-axis displacement plate bolt hole spaced apart, every block X-axis displacement plate is provided with two described X-axis fixture blocks.
Described Y-axis displacement plate is shaped with several along Y direction Y-axis displacement plate bolt hole spaced apart, described Y-axis fixture block is by locking being bolted on described Y-axis displacement plate in described Y-axis displacement plate bolt hole.
Described Y-axis displacement plate is shaped with altogether two rows along Y direction described Y-axis displacement plate bolt hole spaced apart, every block Y-axis displacement plate is provided with altogether two described Y-axis fixture blocks.
Described displacement platform is provided with the X-axis line slide rail that its length is arranged along X-direction, described X-axis displacement plate is slidably connected on this X-axis line slide rail.
Described displacement platform is provided with the Y-axis line slide rail that its length is arranged along Y direction, described Y-axis displacement plate is slidably connected on this Y-axis line slide rail.
The utility model has the advantages that: compared to traditional structure, this press printing of the utility model localization tool can locate the center position of printed product, thus with the central point of product for benchmark prints it, make the printed layers on product can not distance larger with product edge deviation, and then make product yield far above traditional printing machine.And this tool can fixed thickness at the print product of 0.3mm, avoid product, in printing position fixing process, film dancing occurs.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is the overall structure schematic diagram printing localization tool in the utility model embodiment;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the structural representation of positioning table in the utility model embodiment;
Fig. 4 is the structural representation of displacement platform in the utility model embodiment;
Fig. 5 is the structural representation of X-axis displacement plate in the utility model embodiment;
Fig. 6 is the structural representation of Y-axis displacement plate in the utility model embodiment;
Fig. 7 is the utility model embodiment convexity wheel shaft front view;
Fig. 8 is the upward view of Fig. 7;
Fig. 9 is the right view of Fig. 8;
Wherein: 1-positioning table, 11-puts platform, 11a-sucker, and 12-X axial length is stitched, and 13-Y axial length is stitched,
2-displacement platform, 21-X axial displacement plate, 22-Y axial displacement plate, 23-X axial displacement cylinder, 24-Y axial displacement cylinder, 25-swiveling wheel, 26-X axle synchronising (connecting) rod, 27-Y axle synchronising (connecting) rod, 28-X axle clamp block, 29-Y axle clamp block, 210-X axle line slide rail, 211-Y axle line slide rail, 21a-X axial displacement crab bolt hole, 22a-Y axial displacement crab bolt hole
3-putting groove,
6-displacement platform elevating mechanism, 61-two camshafts, 62-spring bearing, 63-first swing arm, 64-second swing arm, 65-waling stripe, 66-drives cylinder,
7-base station.
Detailed description of the invention
Embodiment: Fig. 1 ~ Fig. 9 shows a specific embodiment of this press printing localization tool of the utility model, and this printing localization tool comprises a base station 7 and the positioning table 1 that is arranged on this base station 7 and a displacement platform 2.Wherein displacement platform 2 can move up and down along Z axis, and base station 7 is also provided with the displacement platform elevating mechanism 6 that described displacement platform 2 can be driven to move up and down.
The key improvements of the present embodiment is: described positioning table 1 is provided with the storing platform 11 for placing printed thing, and the upper surface of this storing platform 11 gathers and is provided with for adsorbing the fixing sucker 11a (sucker 11a is connected with corresponding vacuum suction device) being printed thing.Displacement platform 2 is provided with two along X-direction spaced apart and the X-axis displacement plate 21, two that can move left and right along X-axis along Y direction spaced apart and the Y-axis displacement plate 22 that can move forward and backward along Y-axis, for driving the X-axis displacement cylinder 23 that described X-axis displacement plate 21 moves left and right along X-axis and the Y-axis displacement cylinder 24 driving described Y-axis displacement plate 21 to move left and right along Y-axis.Described two X-axis displacement plates 21 and two Y-axis displacement plates 22 assume diamond in shape distribution, and the center position of this rhombus is furnished with and is connected on described displacement platform 2 and two swiveling wheels 25 that can rotate around himself central axis, the centerline axis parallel of described swiveling wheel 25 is arranged in Z axis.Be hinged with between one of them swiveling wheel 25 with X-axis displacement plate 21 for drive described two X-axis displacement plates 21 along X-axis synchronous close/away from X-axis synchronising (connecting) rod 26, be hinged with between another one swiveling wheel 25 with Y-axis displacement plate 22 for drive described two Y-axis displacement plates 22 along Y-axis synchronous close/away from Y-axis synchronising (connecting) rod 27.Two described X-axis displacement plates 21 are provided with the X-axis fixture block 28 for the printed thing that is fixedly clamped along X-direction, two described Y-axis displacement plates 22 are provided with the Y-axis fixture block 29 for the printed thing that is fixedly clamped along Y direction.
In this example, positioning table 1 is positioned at the top of displacement platform 2, and positioning table 1 offers X-axis slit 12 that its length distributes along X-axis and the Y-axis slit 13 that its length distributes along Y-axis.Above-mentioned X-axis fixture block 28 also can move left and right along X-axis through described X-axis slit 12, and above-mentioned Y-axis fixture block 29 also can move forward and backward along Y-axis through described Y-axis slit 19.And swiveling wheel 25 is in immediately below storing platform 11.
During practical application, will be printed thing (as cover glass) lie in as described in above storing platform 11.Raised the position of displacement platform 2 by displacement platform elevating mechanism 6, thus make X-axis fixture block 28 and Y-axis fixture block 29 exceed cover glass upper surface certain distance as printed thing.Then by X-axis displacement cylinder 23 and Y-axis displacement cylinder 24 drive two X-axis displacement plates 21 and two Y-axis displacement plates 22 close to each other; X-axis fixture block 28 on two X-axis displacement plates 21 and the Y-axis fixture block 29 on two Y-axis displacement plates 22 the most at last cover glass along X-axis and Y direction horizontal-clamping; because be now fixedly clamped, the X-axis fixture block 28 of cover glass and Y-axis fixture block 29 exceed cover glass upper surface, thus make cover glass de-groove can not occur and collapse limit phenomenon.And because the existence of swiveling wheel 25, X-axis synchronising (connecting) rod 27 and Y-axis synchronising (connecting) rod 27; thus ensure that the displacement of two X-axis displacement plates 21 time close to each other is identical all the time; also ensure that the displacement of two Y-axis displacement plates 22 time close to each other is identical all the time; after cover glass is clamped location, its central point is just just in directly over swiveling wheel 25, thus realizes the centralized positioning to printed thing.Then by the vacuum pressure of sucker 11a, cover glass is absorbed and fixed on storing platform 11 along Z axis.Unclamp X-axis displacement cylinder 23 and Y-axis displacement cylinder 24 afterwards; the position of displacement platform 2 is reduced by displacement platform elevating mechanism 6; carry out making the upper surface of cover glass exceed X-axis fixture block and Y-axis fixture block about 0.1mm; again X-axis displacement cylinder 23 and Y-axis displacement cylinder 24 are pressurizeed; make X-axis fixture block and Y-axis fixture block again clamp printed cover glass, then carry out follow-up printing action.
In this example, described X-axis displacement plate 21 is shaped with multiple X-axis displacement plate bolt hole 21a spaced apart along X-direction, described X-axis fixture block 28 is by locking being bolted on described X-axis displacement plate 21 in described X-axis displacement plate bolt hole 21a.And the X-axis displacement plate bolt hole 21a that X-axis displacement plate 21 is arranged has two rows, every block X-axis displacement plate 21 is provided with two described X-axis fixture blocks 28.The object of setting like this is: make the right position of X-axis fixture block 28 on X-axis displacement plate 21 adjustable, to clamp the cover glass of different size.
Described Y-axis displacement plate 22 is shaped with several along Y direction Y-axis displacement plate bolt hole 22a spaced apart, described Y-axis fixture block 29 is by locking being bolted on described Y-axis displacement plate 21 in described Y-axis displacement plate bolt hole 22a.And the Y-axis displacement plate bolt hole 22a that Y-axis displacement plate 22 is arranged has two rows, every block Y-axis displacement plate 22 is provided with two described Y-axis fixture blocks 29.The object of setting like this is: make the right position of Y-axis fixture block 29 on X-axis displacement plate 22 adjustable, to clamp the cover glass of different size.
In order to ensure the mobile accuracy of above-mentioned X-axis displacement plate 21 and Y-axis displacement plate 22, this example have employed following structure: described displacement platform 2 is provided with the X-axis line slide rail 210 that its length is arranged along X-direction, and described X-axis displacement plate 21 is slidably connected on this X-axis line slide rail 210.Described displacement platform 2 is provided with the Y-axis line slide rail 211 that its length is arranged along Y direction, described Y-axis displacement plate 22 is slidably connected on this Y-axis line slide rail 211.
In the present embodiment, this printing localization tool has two X-axis displacement cylinders 23 and two Y-axis displacement cylinders 24, when one of them X-axis displacement cylinder 23 and/or one of them Y-axis displacement cylinder 24 damage and cannot work, this localization tool still can run as usual, specific as follows: normal X-axis displacement cylinder 23 action run drives X-axis fixture block 28 on that block X-axis displacement plate 21 and this X-axis displacement plate of being attached thereto to run towards swiveling wheel 25, X-axis displacement plate 21 is rotated by the X-axis synchronising (connecting) rod 210 driven rotary wheel 25 be attached thereto, swiveling wheel 25 will pull an other X-axis synchronising (connecting) rod 210 to move, and to pull on another block X-axis displacement plate 21 and this X-axis displacement plate X-axis fixture block 28 also towards swiveling wheel 25 direction synchronizing moving by this other X-axis synchronising (connecting) rod 210.
In this example, said Z-direction is the inward-outward direction perpendicular to paper in Fig. 1, and X-direction is the left and right directions being parallel to paper in Fig. 1, and Y direction is the above-below direction being parallel to paper in Fig. 1.
In the present embodiment, the detailed construction of described displacement platform elevating mechanism 6 can refer to shown in Fig. 1 and Fig. 2, it comprises and is supported on two camshafts 61 bottom displacement platform 2, these two camshafts 61 are parallel to each other layout, the two ends of every root camshaft 61 are rotatably mounted on described base station 7 by spring bearing 62, and these two camshafts 61 are fixedly connected with respectively vertically arranged first swing arm 63 and the second swing arm 64 with it, described first swing arm 63 and the second swing arm 64 are hinged on the two ends of a waling stripe 65 respectively, so just make base station 7, first swing arm 63, waling stripe 65 and the second swing arm 64 form a parallel four-bar linkage, thus the synchronous axial system of described two camshafts 61 can be realized, described positioning table 1 is also provided with the driving cylinder 66 for driving described second swing arm 64 to swing.Drive the action of cylinder 66 automatically can be controlled by servo-drive system.
During work, cylinder 66 is driven to drive the second swing arm 64 to swing, the Na Gengen camshaft 61 that second swing arm 64 and then drive are fixed with it rotates, second swing arm 64 simultaneously also can drive waling stripe 65 hinged with it to move horizontally, waling stripe 65 drives the first hinged with it swing arm 63 to swing again, according to the characteristic of parallel four-bar linkage, known first swing arm 63 is identical all the time with the pendulum angle of the second swing arm 64, thus make respectively with the first swing arm 63 and fixing two camshaft 61 synchronous axial system of the second swing arm 64, and then drive the displacement platform 2 be supported on above these two camshafts 61 to move up or down.Two camshaft 61 synchronous axial system can ensure that displacement platform 2 moves up or down stably, avoid displacement platform 2 run-off the straight when moving up or down.
In order to avoid displacement platform 2 is in the process moving up or down (moving along Z axis), the offset movement (moving along X or Y-axis) in displacement platform 2 meeting occurred level direction, this example is also fixed with several Z-direction guide rails vertically arranged on described base station 7, and described displacement platform 2 is moving up and down to be connected on this Z-direction guide rail.Z direction guiding rail moves up and down along Z axis for guiding displacement platform 2, avoids the offset movement in occurred level direction in displacement platform 2 lifting process.
The conveniently assembling of described driving cylinder 66, described second swing arm 64 is arranged to U-shaped structure by this example, its one end and described waling stripe 65 hinged, the other end is connected with described driving cylinder 66.
Certainly, above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to people can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to the Spirit Essence of the utility model main technical schemes or modification, all should be encompassed within protection domain of the present utility model.