Multi-face integrated type automatic image-changing bill board
An integrated, billboard technology, applied in the direction of instruments, identification devices, etc., can solve the problems of equipment cost increase, large installation space, picture scroll force deformation and complex transmission mechanism, etc., to achieve low installation cost, strong operability, The effect of simple structure
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Embodiment 1
[0039]Referring to the accompanying drawings, what this implementation describes is a double-sided integrated automatic frame-changing billboard, including four separated picture scrolling shafts 30, 31, 32 and 33, a stepping motor 1, and the picture scrolling shaft can move through the bearing. Fixed on the frame 10, 11, the output shaft of the motor is fixedly connected with the picture scrolling shaft 31 through the bushing 4; one end of the picture scrolling shaft 30 and 31, 32 and 33 is respectively equipped with a constant speed ratio spur gear 50 and 51, 52 and 53; two groups of oppositely installed tapered wire wheels 40 and 42, 41 and 43 are fixedly connected with one end of the picture scroll winding shaft 30 and 32, 31 and 33 respectively; each group of tapered wire wheels is fixed with a Branch wires 60, 61 are provided with threaded grooves on the tapered wire wheel, and silk threads are embedded in the threaded grooves.
[0040] Determine the number of turns of t...
Embodiment 2
[0047] Referring to the accompanying drawings, the difference between the double-sided integrated automatic width-changing billboard transmission device described in this embodiment and the embodiment 1 is that two pairs of spur gears with constant speed ratio meshing with each other are fixed at the same end of the motor, and the conical wire wheel It is fixed on the other side of the picture scroll winding shaft group in the same group. Two sets of four conical wire wheels in total are used to ensure the synchronization of the linear speed of the double-sided picture scroll. One end of shaft 31,32, silk thread is wound in the opposite direction, and the thread groove on the tapered wire wheel 40,41 is right-handed, and the thread thread groove on the tapered wire wheel 42,43 is left-handed. The winding shaft 31 is always connected with the motor as the driving shaft, and the winding shaft 32 is driven by the tapered wire wheel group, and the linear speed synchronization is gu...
Embodiment 3
[0049] Referring to the accompanying drawings, the difference between the double-sided integrated automatic frame-changing billboard transmission device described in this embodiment and the embodiment 1 is that two pairs of spur gears with constant speed ratio meshing with each other are fixed at the same end of the motor, and two sets of spur gears are also used. A total of four tapered wire wheels ensure the synchronization of the linear speed of the double-sided picture scroll, but the four tapered wire wheels are respectively fixed on the two ends of the same group of picture scroll winding shafts, and the silk thread is wound in the opposite direction. The threaded slots can use the same direction of rotation. The winding shaft 30 is connected with the motor and is always the driving shaft. Through the gear transmission, the winding shaft 32 is also the driving shaft, and the linear speed synchronization is guaranteed by the tapered wire wheel group, while the winding shaf...
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