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A conveying device includes a base, a sliding mechanism and a bearing mechanism. The base includes a mounting plate and a fixed bracket fixed on the mounting plate. The sliding mechanism includes a bottom plate slidably mounted on the mounting plate, a mounting platform fixedly mounted upon the bott

A conveying device includes a base, a sliding mechanism and a bearing mechanism. The base includes a mounting plate and a fixed bracket fixed on the mounting plate. The sliding mechanism includes a bottom plate slidably mounted on the mounting plate, a mounting platform fixedly mounted upon the bottom plate, a conveying assembly and a driver. The conveying assembly includes a driving wheel, a driven member and a conveying belt sleeved on the driving wheel and the driven member. The driver is mounted on the bottom plate and connected with the driving wheel. The bearing mechanism is slidably mounted on the mounting platform, and fixed with the conveying belt. The driving wheel and the driven member are oppositely and rotatably mounted on the bottom plate, the fixed bracket is positioned adjacent to the driven member and fixed with the conveying belt.

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1. A conveying device, comprising: a base comprising a mounting plate and a fixed bracket fixed on the mounting plate;a sliding mechanism comprising: a bottom plate slidably mounted on the mounting plate;a mounting platform fixedly mounted upon the bottom plate;a conveying assembly mounted on the bo

1. A conveying device, comprising: a base comprising a mounting plate and a fixed bracket fixed on the mounting plate;a sliding mechanism comprising: a bottom plate slidably mounted on the mounting plate;a mounting platform fixedly mounted upon the bottom plate;a conveying assembly mounted on the bottom plate and positioned under the mounting platform, the conveying assembly comprising a driving wheel, a driven member, and a conveying belt sleeved on the driving wheel and the driven member; anda driver mounted on the bottom plate for driving the corresponding driving wheel to rotate; anda bearing mechanism slidably mounted on the mounting platform of the sliding mechanism, and fixed with the conveying belt;wherein the driving wheel and the driven member are oppositely and rotatably mounted on the bottom plate, the fixed bracket is positioned adjacent to the driven member and fixed with the conveying belt. 2. The conveying device of claim 1, wherein the bottom plate defines a sliding slot, the driving wheel and the driven member are oppositely positioned adjacent to two ends of the sliding slot; the fixed bracket passes through the sliding slot and fixed with conveying belt. 3. The conveying device of claim 2, wherein the mounting platform defines a sliding groove parallel to the sliding slot of the bottom plate and positioned upon the sliding slot, the bearing mechanism passes through the sliding groove and fixed with the conveying belt. 4. The conveying device of claim 2, further comprising two sensors and a sensing sheet, wherein the two sensors are oppositely mounted on the mounting plate and positioned adjacent to two ends of the sliding slot, respectively; the sensing sheet is mounted to the bottom plate and positioned adjacent to the driving wheel, and connected with the driver; when the sensing sheet aligns with and senses one of the two sensors, the sensing sheet is capable of sending out a stop signal to stop the driver. 5. The conveying device of claim 2, wherein the sliding mechanism further comprises a plurality of support posts separately formed on the bottom plate and positioned at two sides of the sliding slot longitudinally; the mounting platform is fixed to the distal ends of the support posts and positioned above the bottom plate parallely. 6. The conveying device of claim 4, wherein the conveying assembly further comprises a fixing base fixed on the bottom plate and positioned away from the sensing sheet and the driving wheel, the driven member is rotatably mounted to the fixing base and positioned opposite to the driving wheel. 7. The conveying device of claim 3, wherein the driving wheel forms a plurality of engaging teeth on a peripheral surface thereof, the conveying belt forms a substantially serrate shaped engaging portion on an inner surface thereof, for engaging with corresponding engaging teeth of the driving wheel. 8. The conveying device of claim 7, wherein the mounting platform comprises a base plate, at least one sliding rail formed on the base plate, and at least one sliding block slidably assembled to the sliding rail, the base plate is parallely mounted upon the bottom plate; and the sliding groove is defined through the base plate longitudinally. 9. The conveying device of claim 8, wherein the mounting platform further comprises a first stopper and a second stopper, the first stopper and the second stopper are oppositely mounted to two ends of the at least one sliding rail. 10. The conveying device of claim 8, wherein the bearing mechanism comprises a bearing platform, a support base and a fixed support; the bearing platform and the fixed support are oppositely mounted to a top end of the support base and a bottom end of the support base; the fixed support passes through the sliding groove and is fixed with the conveying belt. 11. The conveying device of claim 10, wherein the fixing support comprises a support body fixed to the support base and a pressing body fixed with the support body, the support body defines a mounting slot at a bottom end thereof, the pressing body is fixedly received within the mounting slot of the support body; the pressing body defines a serrate shaped latching portion engaging with the engaging teeth of the driving wheel and the engaging portion of the conveying belt; the engaging portion of the conveying belt is fixedly sandwiched between the support body and the pressing body of the fixed support. 12. A conveying device, comprising: a base comprising a mounting plate and a fixed bracket fixed on the mounting plate;a sliding mechanism comprising: a bottom plate slidably mounted on the mounting plate and defining a sliding slot longitudinally;a mounting platform fixedly mounted upon the bottom plate;a conveying assembly mounted on the bottom plate and positioned under the mounting platform, the conveying assembly comprising a driving wheel, a driven member, and a conveying belt sleeved on the driving wheel and the driven member; the driving wheel and the driven member oppositely positioned adjacent to two ends of the sliding slot; anda driver mounted on the bottom plate and for driving the corresponding driving wheel to rotate; anda bearing mechanism slidably mounted on the mounting platform of the sliding mechanism, and fixed with the conveying belt;wherein, the fixed bracket passes through one end of the sliding slot and fixed with the conveying belt, the fixed bracket comprises a support portion and a cover plate fixed on the support portion, a bottom side portion of the conveying belt adjacent to the driven member is fixedly sandwiched between the support portion and the cover plate. 13. The conveying device of claim 12, wherein the mounting platform comprises a base plate, at least one sliding rail formed on the base plate, and at least one sliding block slidably assembled to the sliding rail, the base plate is parallely mounted upon the bottom plate and defines a sliding groove longitudinally parallel to the sliding slot; the bearing mechanism passes through the sliding groove and fixed with the conveying belt. 14. The conveying device of claim 13, wherein the sliding mechanism further comprises a plurality of support posts separately formed on the bottom plate and positioned at two sides of the sliding slot longitudinally; the mounting platform is fixed to distal ends of the support posts and positioned above the bottom plate parallely. 15. The conveying device of claim 14, wherein the bearing mechanism comprises a bearing platform, a support base and a fixed support, the bearing platform and the fixed support are oppositely mounted to a top end of the support base and a bottom end of the support base; the fixed support passes through the sliding groove and fixed with the conveying belt.