A kind of linear transport mechanism and screen printing machine that is used for screen printing machine
Technical field
The utility model relates to solar cell manufacturing automation apparatus field, relates in particular to a kind of silicon chip linear transport mechanism when being used for the screen printer print electrode.
Background technology
In crystal silicon solar energy battery, using the metal coating of silicon chip to handle is very crucial connectivity technology, and it is not only the necessary method of collecting the electric current that solar cell sends, and also directly influences the energy conversion efficiency of battery.Screen printing (screenprinting) is to carry out metallized optimization technology; Also be the selected technologies of all main manufacture of solar cells merchants; In silicon chip surface printed electrode and aluminium back of the body field, homemade screen printer mainly adopts mechanical positioning now, and accuracy of positioning is not high; Fragment rate is high simultaneously, and production efficiency is not carried.Along with the high speed development and the special dimension of photovoltaic industry are increasingly high to the requirements for quality of solar battery sheet; Screen printing machine is as requisite key processing equipment in the manufacture of solar cells process; The requirement automatization level is high, accuracy is high, fragment rate is low, for solar cell provides strict quality guarantee.
Full-automatic screen printer is used in silicon chip surface printed electrode and aluminium back of the body field; Chip system, automatic flexible printing are turned in crucial monotechnics such as vision alignment, automatic transmission; Printing station turns over automatic transmission and being connected of chip system just seems particularly important; Must the strict guarantee silicon chip steady, no fragment in transmission between the two, utilize the utility model connecting gear can satisfy this requirement.
The utility model content
Turn over flexibly connecting of chip system and printing station in order to realize transmitting automatically on the full-automatic screen printer; The utility model aims to provide a kind of silicon chip connecting gear that is used on the screen printing machine, this silicon chip connecting gear can guarantee silicon chip can be steadily, the mutual transmission of no fragment.
To achieve these goals, the technical scheme that the utility model adopted is:
A kind of silicon chip connecting gear that is used on the screen printing machine; Comprise linear electric motors adapter plate and cam lifting mechanism adapter plate; Its constructional feature is, on the said linear electric motors adapter plate linear electric motors connecting gear is housed, and on the said cam lifting mechanism adapter plate cam lifting mechanism is housed; The said linear electric motors connecting gear that is positioned at the cam lifting mechanism top is driven by this cam lifting mechanism does reciprocal dipping and heaving, and said linear electric motors connecting gear links to each other with the silicon chip supporting plate.
Cam lifting mechanism can drive the linear electric motors connecting gear and carry out dipping and heaving synchronously, and when cam lifting mechanism was high-order, the linear electric motors connecting gear carried out straight line to silicon chip and transmits, and cam lifting mechanism is vertical with linear electric motors connecting gear sense of motion.Said cam lifting mechanism is responsible for leading portion operation just and is turned over the silicon chip that chip system sends and raise and be placed on the print station printing station through transmitting automatically, and the silicon chip after another set of same mechanism will be completed for printing is simultaneously raised and is placed on follow-up transmission and is with synchronously; Said linear electric motors connecting gear is responsible for silicon chip in the transmission of the straight line between band and the printing station synchronously.
The structure of said cam lifting mechanism does, the output shaft and the driving pulley of cam lifting motor link, and this driving pulley links to each other through belt with driven pulley, the same axle mounting of said driven pulley and cam, and the upper end of this cam contacts with the linear electric motors connecting gear.
The structure of said linear electric motors connecting gear does, comprises line slideway, and linear electric motors, the track of these linear electric motors are installed on the linear electric motors adapter plate, and said linear motor driving silicon chip supporting plate does reciprocating linear motion along line slideway.Linear motor rotor drives silicon chip supporting plate straight-line motion immediately when cam lifting mechanism rises to a high position with the linear electric motors transmission device, carries out silicon chip and transmits.
The position probing wheel that detects cam position is housed on the installation shaft of said cam.Cam and driven pulley, position probing are taken turns same axle mounting; Motor drives cam through synchronous pulley and rotates synchronously; Accurate line slideway guiding, the linear electric motors connecting gear will go up and down along with the rotation of cam, after photoelectric switch detects cam through the position probing wheel and puts in place; Motor shuts down, and the holding position is constant.
Said line slideway bottom is provided with grating.
In lifting process, in order to reduce the motion impact that the linear electric motors connecting gear goes up and down, realize steadily going up and down, be provided with recoil spring between said cam lifting mechanism adapter plate and the linear electric motors adapter plate.
Said silicon chip supporting plate is provided with the vacuum that is communicated with vacuum generator and inhales the hole; Silicon chip is placed on the supporting plate; Can guarantee that the silicon chip supporting plate firmly adsorbs silicon chip after being communicated with vacuum generator, in transport process, can not break away from the silicon chip supporting plate or be subjected to displacement, guarantee that the silicon chip positional precision reduces fragment simultaneously.
Said cam lifting motor one side is provided with the photoelectric switch of control cam lifting motor start and stop
Said grating one side is provided with the grating detector switch of control linear electric motors start and stop.
By said structure, after silicon chip was accomplished the leading portion operation, transmission was turned over chip system and through synchronous band silicon chip is sent to printing material loading station automatically; Cam lifting mechanism in the utility model is started working at this moment; Motor is through the rotation of the cam of band drive synchronously, thereby the linear electric motors connecting gear rises overally, in uphill process; The silicon chip supporting plate contacts with silicon chip; Vacuum generator can be inhaled the place, hole in the vacuum on the silicon chip supporting plate and produce micro-vacuum, guarantees that silicon chip adsorbs on the silicon chip supporting plate firmly, can non-displacement carry out subsequent action.After the linear electric motors transmission device attained to a high place, cam lifting mechanism stopped action, and the linear electric motors transmission device is sent to printing station in a high position with silicon chip, and the linear electric motors transmission device adopts the grating location, transmitted steadily, and accuracy of positioning is high.After silicon chip reached printing station, cam lifting mechanism started, and linear electric motors connecting gear and silicon chip are descended; Vacuum generator quits work, and arrives when the next, and the silicon chip supporting plate is lower than printing station silicon chip mounting table; Silicon chip just rests on the printing station, carries out follow-up vision localization and printing.In the cam lifting mechanism motion process, the recoil spring that is connected on cam lifting mechanism adapter plate and the linear electric motors adapter plate can reduce the motion impact that the linear electric motors connecting gear goes up and down, and realizes steadily going up and down.Another set of identical connecting gear motion flow process is turned over silicon chip chip system and is with synchronously from sending automatic transmission after printing station holds up back in contrast.
Further, the utility model also provides a kind of screen printing machine, and its constructional feature is that the aforesaid silicon chip connecting gear that is used on the screen printing machine of a cover is installed respectively in the printing station both sides of print station.
Print station configuration of screen printing machine two these silicon chip connecting gears of cover; Be installed in the printing station both sides respectively; The action of need accomplishing be with accomplish the silicon chip that sends after the leading portion operation be passed to printing station and will be completed for printing after silicon chip send back to be with synchronously from printing station and carry out subsequent handling.Two cover mechanisms require and printing station centre bit conllinear.
Compared with prior art; The beneficial effect of the utility model is: the described silicon chip connecting gear completion of the utility model silicon chip transmits action at the automatic silicon chip that turns between chip system and printing station that transmits, and can be completely achieved the flexibility that automatic transmission is turned between chip system and printing station on the screen printer print platform and transmits, fast, steadily; Fragment rate is low; Improve the production efficiency of screen printing machine greatly, reduced the equipment fragment rate, improved solar battery sheet production line automation degree.
Below in conjunction with accompanying drawing and embodiment the utility model is done further to set forth.
Description of drawings
Fig. 1 is the structure and shape figure of a kind of embodiment of the utility model;
Fig. 2 is the front elevation of Fig. 1;
Fig. 3 is the birds-eye view of Fig. 1.
In the drawings:
1-silicon chip supporting plate; The 2-linear electric motors; The 3-line slideway; The 4-photoelectric switch;
5-linear electric motors adapter plate; The 6-driven pulley; 7-cam lifting mechanism adapter plate;
The 8-recoil spring; The 9-cam; 10-position probing wheel; The 11-grating;
12-cam lifting motor; The 13-driving pulley; 14-grating detector switch; The 15-vacuum is inhaled the hole.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to set forth.Need to prove that figure number only representes the main parts size of present embodiment, other is not listed one by one.
A kind of silicon chip connecting gear that is used for screen printing machine; As shown in Figure 1, form by silicon chip supporting plate 1, linear electric motors 2, line slideway 3, photoelectric switch 4, linear electric motors adapter plate 5, driven pulley 6, cam lifting mechanism adapter plate 7, recoil spring 8, cam 9, position probing wheel 10, grating 11, cam lifting motor 12, driving pulley 13, support, rotating shaft etc.
As shown in Figures 2 and 3; Said silicon chip supporting plate 1, linear electric motors 2, line slideway 3, grating 4 are installed on the linear electric motors adapter plate 5 through a series of parts; There is accurate line slideway to be connected between linear electric motors adapter plate 5 and the cam lifting mechanism adapter plate 7 with slide block; Simultaneously the recoil spring two ends also are attached thereto respectively, and cam lifting motor 12 is fixed on the cam lifting mechanism adapter plate 7 through adapter plate, and driving pulley 13 is installed on 12 of the cam lifting motors.Two cams 9, position probing wheel 10, driven pulley 6 same axle mountings link to each other with cam motor through synchronous band.
Cam lifting mechanism is responsible for the dipping and heaving of linear electric motors connecting gear, and the linear electric motors connecting gear carries out horizontal linear to silicon chip and transmits when a high position.Print station configuration of screen printing machine two these silicon chip connecting gears of cover; Be installed in the printing station both sides respectively; The action of need accomplishing be with accomplish the silicon chip that sends after the leading portion operation be passed to printing station and will be completed for printing after silicon chip send back to be with synchronously from printing station and carry out subsequent handling.Two cover mechanisms require and printing station centre bit conllinear.
Introduce the concrete technological process that is used for screen printing machine silicon chip connecting gear below.Silicon chip after the leading portion operation is accomplished turns over the synchronous band of chip system through automatic transmission and is delivered to print station material loading station; After photoelectric switch detects material loading station silicon chip and puts in place; Cam lifting motor 12 starts, and drives cam 9 rotations through synchronous band, and cam 9 is with the whole rising of linear electric motors connecting gear; Because the effect of recoil spring 8; Can guarantee that motion steadily can not produce big motion and impact in the linear electric motors mechanism lifting process, can not cause the phenomenon that silicon chip is knocked away and crashes when the silicon chip supporting plate on the linear electric motors connecting gear 1 adsorbs silicon chip like this.The hole is inhaled in the true hole that is provided with on the silicon chip supporting plate 1 can form micro-vacuum under the effect of vacuum generator, silicon chip firmly is adsorbed on the silicon chip supporting plate 1.After photoelectric switch 4 detected Cam Detection wheel 10 and puts in place, cam lifting motor 12 stopped and motion.At this moment, linear electric motors 2 start, and the silicon chip that drives silicon chip supporting plate 1 and top absorption together moves along the line slideway direction, because vacuum adsorption force, what silicon chip can be firm together moves with silicon chip supporting plate 1, can not break away from silicon chip supporting plate 1 and cause fragment.After mover that the grating detector switch detects linear electric motors 2 put in place, linear electric motors 2 stopped, and at this moment, silicon chip just in time is positioned at the print station printing station.Cam lifting motor 12 starts once more, drives linear electric motors lifting mechanism and silicon chip and descends, in the decline process; Vacuum generator quits work, and silicon chip stops to descend after touching the print station screen frame, breaks away from silicon chip supporting plate 1; Silicon chip supporting plate 1 continues the decline certain distance under the effect of cam lifting mechanism, after photoelectric switch 4 detection cam rotations put in place, cam lifting motor 12 stopped action; At this moment, the transmission that brings to printing station synchronously that silicon chip turns over chip system from automatic transmission is accomplished, and linear electric motors start round about; The silicon chip supporting plate is moved to the material loading station, and so far, this cover mechanism one-time process flow process is all accomplished; Print station then carries out vision localization and printing to silicon chip; After being completed for printing, the identical silicon chip connecting gear of an other cover of printing station opposite side is sent to being with synchronously of blanking station with silicon chip, and motion flow process and material loading are opposite.
But this mechanism frequent movement on screen printing machine; Guarantee to get on the screen printing machine to transmit automatically and turn over chip system and printing station coordination; Accurately, pulsation-free transmits silicon chip; Realize turning over automatically flexibly connecting of chip system and printing station, improve the degree of automation and the production efficiency of screen printing machine.
The content that the foregoing description is illustrated is to be understood that to these embodiment and only is used to be illustrated more clearly in the utility model; And be not used in the restriction the utility model scope; After having read the utility model, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the utility model.