A kind of accurate positioning device of glass substrate travelling bogie
Technical field
The utility model belongs to glass manufacturing area, relates to the attendant equipment in the full-automatic manufacturing line of glass substrate, specifically a kind of device that guarantees that glass substrate travelling bogie accurately, steadily stops.
Background technology
Generally, the glass substrate over-borrowing of overflow downdraw manufacture helps the travelling bogie being placed on belt conveyor to carry out vertical transport, to realize the processes of each station.In course of conveying, for the processing such as conveniently assemble and disassemble, cutting, fixing many employings mounting clamp sub-folder on travelling bogie of glass substrate is lived glass substrate and is realized.Glass substrate is in transportation in addition, the station of crossing a lot, in the time that each station stops, owing to there is no suitable deceleration registration device, usually there will be position deviation, and the mechanical vibration meeting comparatively fast causing because slowing down causes glass substrate collision to cause breakage.Collision for fear of glass substrate in transportation and the impact of the clip application of force on glass quality, the device in the urgent need to a kind of steady deceleration, accurately stopping in glass substrate transportation.
Summary of the invention
The utility model stops not steady, inaccurate problem in order to solve the deceleration of glass substrate travelling bogie, has designed a kind of accurate positioning device.Set gradually first deceleration photoelectric switch, secondary speed-reducing photoelectric switch along glass substrate direction of transfer in belt conveyor both sides and be positioned at the stop cylinder of predetermined rest position, realize progressively and steadily having slowed down, and by accurately stopping after this mechanical position limitation buffering of stop cylinder; Solve the position deviation problem that glass substrate occurs in the pre-position of stopping work, reduced the fragmentation problem that glass causes because of mechanical vibration, collision in transportation simultaneously.
The technical solution of the utility model is: a kind of accurate positioning device of glass substrate travelling bogie, for the dolly on belt conveyor is accurately positioned to predetermined stop position, key is: structure comprises master controller, is set in turn in first deceleration photoelectric switch, the secondary speed-reducing photoelectric switch of belt conveyor both sides and the stop cylinder arranging in predetermined rest position along glass substrate direction of transfer; First deceleration photoelectric switch, the signal output part of secondary speed-reducing photoelectric switch and the signal input part of master controller are connected, and the controlled end of stop cylinder, belt-driven motor upconverter is connected with the control end of master controller.
The beneficial effects of the utility model are: 1, set gradually first deceleration photoelectric switch, secondary speed-reducing photoelectric switch along glass substrate direction of transfer in belt conveyor both sides and be positioned at the stop cylinder of predetermined rest position, realize progressively and steadily having slowed down, and by accurately stopping after this mechanical position limitation buffering of stop cylinder; Solve the position deviation problem that glass substrate occurs in the pre-position of stopping work, reduced the fragmentation problem that glass causes because of mechanical vibration, collision in transportation simultaneously.2, adopt the stop cylinder of embedded with hydraulic bumper, when dolly knocks cylinder after, can pass through an elastic deformation, reach the object that reduces impact, intact in vertical transport process of assurance glass.3, between drive motor and belt conveyor drive sprocket axle, adopt chain gear, can guarantee average ratios accurately, be beneficial to the speed of controlling within the specific limits dolly, contribute to the control that stops of dolly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In accompanying drawing, the 1st, the photoelectric switch that slows down for the first time, the 2nd, secondary speed-reducing photoelectric switch, the 3rd, stop cylinder, the 4th, driven sprocket, the 5th, belt conveyor, a is stop position, the direction of arrow is glass substrate direction of transfer.
The specific embodiment
A kind of accurate positioning device of glass substrate travelling bogie, for the dolly on belt conveyor 5 is accurately positioned to predetermined stop position a, key is: structure comprises master controller, is set in turn in first deceleration photoelectric switch 1, the secondary speed-reducing photoelectric switch 2 of belt conveyor 5 both sides and the stop cylinder 3 arranging at predetermined stop position a place along glass substrate direction of transfer; First deceleration photoelectric switch 1, the signal output part of secondary speed-reducing photoelectric switch 2 and the signal input part of master controller are connected, and the controlled end of stop cylinder 3, belt-driven motor upconverter is connected with the control end of master controller.
Impact while stopping in order to reduce travelling bogie, stop cylinder 3 adopts the stop cylinder of embedded with hydraulic bumper, is arranged on the predetermined stop position a of dolly place.Stop cylinder default conditions are upper raise-positions, when dolly is encountered after cylinder, can pass through an elastic deformation, reach and reduce the object of impacting, and guarantee intact in vertical transport process of glass.
In order to realize progressively steadily slowing down of travelling bogie, the photoelectric switch 1 that slows down is for the first time 50cm-60cm with the distance of stop cylinder 3, and secondary speed-reducing photoelectric switch 2 is 10cm-20cm with the distance of stop cylinder 3.The dolly of slow down, secondary speed-reducing photoelectric switch 1,2 is relevant, different with the friction force size of the mounting distance of stop cylinder 3 and the rotating speed of drive motor, dolly bottom and belt conveyor 5, the distance of reaction gap to some extent of deceleration, secondary speed-reducing photoelectric switch 1,2.Generally in the time that dolly is unloaded, repeatedly to slow down to stop moving, by manually adjusting position, the best effects when reaching dolly and stopping.
On the power take-off shaft of belt-driven motor, be provided with drive sprocket, drive sprocket is connected with the driven sprocket 4 arranging on belt conveyor drive sprocket axle by chain.Chain gear can guarantee average ratios accurately, to accurately control the stop position of travelling bogie.
For some special station more accurate to dolly status requirement, be also provided with auxiliary positioning cylinder at predetermined stop position a place, the controlled end of auxiliary positioning cylinder is connected with the control end of master controller.
When concrete enforcement, the stop position a front end of dolly is disposed with first deceleration photoelectric switch 1, secondary speed-reducing photoelectric switch 2 and stop cylinder 3 along glass substrate direction of transfer on belt conveyor 5 both sides analog brackets.First deceleration photoelectric switch 1 receives after the signal of dolly arrival deceleration point, feeds back to controller, and motor speed is dropped to low speed by controller control drive motor frequency converter.In the time that dolly arrives secondary speed-reducing photoelectric switch 2 place, drive motor speed changes again, drops to lower, under this speed, continue a bit of time with Time Controller control drive motor, when last drive motor is out of service, dolly is because inertia can slowly slide forward, until encounter stop cylinder 3.Because dolly has obtained good deceleration control, while finally knocking stop cylinder 3, impulsive force is very little, can guarantee that glass can not damage under this impulsive force.
For some special station more accurate to dolly status requirement, be also provided with auxiliary positioning cylinder at predetermined stop position a place, the controlled end of auxiliary positioning cylinder is connected with the control end of master controller.Positioning cylinder default conditions, for declining, rise in the time that needs are located, and mechanically complete further accurately location.