In the thin-film solar cells production line, around must cutting, EVA to given size, carries out automatic film covering before overlay film.At present, what mainly adopt is overlay film after the aritificial cut-off, can not be fit to automatic production line, and production efficiency is low, and dimensional accuracy is difficult to control.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of and can cut automaticity height, the EVA film hob cutting device of thin-film solar cell that machining accuracy is high automatically to thin-film solar cells EVA film.
EVA film hob cutting device of thin-film solar cell of the present invention includes a knife rest that is used for installing cutting tool, the knife rest bottom is fixedly connected with slide block, the fixing line slideway of slide block and its below location that cooperatively interacts can be moved slide block and knife rest along line slideway; The last cutter shaft vertical with the trend of line slideway, following cutter shaft and glue shaft are installed on the described knife rest; A described axle of going up in cutter shaft, following cutter shaft and the glue shaft is by motor-driven driving shaft, and other two axles pass through the transmission mechanism Synchronous Transmission by driving shaft; Described end, the same side of going up cutter shaft and following cutter shaft is separately installed with can be with the last hobboing cutter and the following hobboing cutter of upper and lower cutter shaft rotation, and the blade at last hobboing cutter and following hobboing cutter edge has the part of interlaced applying; At least one rubber roll is installed on the described glue shaft, and the rubber roll bottom abutment is on the end face of above-mentioned line slideway, and the force of rolling friction by rubber roll and line slideway drives knife rest and moves.
Described of going up in hobboing cutter and the following hobboing cutter is can be along its removable hobboing cutter that axially moves within the specific limits, and the while is equipped with in the rotating shaft of this removable hobboing cutter and can makes this removable cutter shaft to the spring of pressing close to another hobboing cutter.
Describedly go up cutter shaft, cutter shaft and glue shaft are arranged from top to bottom successively down, glue shaft is a driving shaft, passes through the synchronizing wheel transmission between glue shaft and the last cutter shaft, between last cutter shaft and the following cutter shaft by gear drive.
Advantage of the present invention is:
1, compact conformation has very big operating space, installs easy to adjust;
2, cut the precision height, the EVA film after cutting has higher linearity, and otch does not have burr;
3, can realize cutting of random length, speed of cut height, automaticity height;
3, by spring the blade of two hobboing cutters is adjacent to automatically, need not to adjust the blade gap, guaranteed to cut quality.
The specific embodiment
As shown in the figure, this device includes a knife rest 1 that is used for installing cutting tool, and knife rest bottom is fixedly connected with slide block 2, and the line slideway of fixing 3 of slide block and its below location that cooperatively interacts can be moved slide block and knife rest along line slideway; The last cutter shaft 4 vertical with the trend of line slideway, following cutter shaft 5 and glue shaft 6 are installed on the knife rest 1; Glue shaft 6 is by motor-driven driving shaft, between last cutter shaft and the glue shaft by the synchronizing wheel transmission, between last cutter shaft and the following cutter shaft by gear drive.The end, the same side of last cutter shaft 4 and following cutter shaft 5 is separately installed with can be with the last hobboing cutter 7 and the following hobboing cutter 8 of upper and lower cutter shaft rotation, following hobboing cutter 8 can axially move within the specific limits along it, on the cutter shaft spring 10 is being installed down simultaneously, it can make down the blade at hobboing cutter edge be adjacent to the blade at hobboing cutter edge automatically, and upper and lower hobboing cutter rotation relatively cuts EVA film 11.Rubber roll 9 is installed on the glue shaft 6, and the rubber roll bottom abutment is on the end face of line slideway 3, and the force of rolling friction by rubber roll and line slideway drives knife rest synchronous linear in the hobboing cutter rotation and moves.