Paper sheet conveying apparatus

Abstract

A paper sheet conveying apparatus has a conveying belt which moves and conveys a paper sheet, a detection sensor which detects the amount of displacement of the conveying belt from a reference position while moving, and a control device which drives the conveying belt at a low speed when a new device is installed as a conveying belt and initially started up, and after the low-speed driving, variably controls the speed of the conveying belt based on the amount of displacement of the conveying belt detected by the detection sensor.

1 . A paper sheet conveying apparatus comprising: 
 a conveying belt which moves and conveys a paper sheet;    a detection device which detects the amount of displacement of the conveying belt from a reference position while moving; and    a control device which drives the conveying belt at a low speed when a new device is installed as a conveying belt and initially started up, and after the low-speed driving, variably controls the speed of the conveying belt based on the amount of displacement of the conveying belt detected by the detection device.    
   
   
       2 . The paper sheet conveying apparatus according to  claim 1 , wherein the control device leaves the conveying belt driven at a low speed when the amount of displacement of the conveying belt is over a predetermined value, gradually increases the speed of the conveying belt as the amount of displacement of the conveying belt is decreased, and increases the speed of the conveying belt to a predetermined speed when the amount of displacement of the conveying belt falls within given limits.  
   
   
       3 . The paper sheet conveying apparatus according to  claim 2 , further comprising a first notify device which notifies an estimated time that the amount of displacement of the conveying belt falls within given limits.  
   
   
       4 . The paper sheet conveying apparatus according to  claim 3 , further comprising a second notify device which notifies states that the amount of displacement of the conveying belt is over a predetermined value, decreased, and falls within given limits, respectively.  
   
   
       5 . A paper sheet conveying apparatus comprising: 
 a conveying belt which moves and conveys a paper sheet;    a detection device which detects the amount of displacement of the conveying belt from a reference position while moving;    a temperature detection device which detects an ambient operating temperature of the conveying belt; and    a control device which drives the conveying belt at a low speed when the temperature of the conveying belt at startup of driving detected by the temperature detection device is lower than a reference temperature, and after the low-speed driving, controls the speed of the conveying belt based on the amount of displacement of the conveying belt detected by the detection device.    
   
   
       6 . The paper sheet conveying apparatus according to  claim 5 , wherein the control device controls to gradually increase the moving speed of the conveying belt as the temperature detected by the temperature detection device is increased, and to increase the moving speed of the conveying belt to a predetermined speed when the temperature detected by the temperature detection device becomes a predetermined value.  
   
   
       7 . A paper sheet conveying apparatus comprising: 
 a conveying belt which moves and conveys a paper sheet;    a detection device which detects the amount of displacement of the conveying belt from a reference position while moving;    a judgment device which judges whether the conveying belt has been stopped for over a certain period, at startup of driving the conveying belt; and    a control device which drives the conveying belt at a low speed when the judgment device judges the conveying belt to have been stopped for over a certain period, and after the low-speed driving, controls the speed of the conveying belt based on the amount of displacement of the conveying belt detected by the detection device.    
   
   
       8 . The paper sheet conveying apparatus according to  claim 7 , further comprising a measuring device which measures a cumulative driven time of the conveying belt, and time passed after the installation of the conveying belt, 
 wherein the judgment device judges whether the conveying belt has been stopped for over a certain time, based on the value measured by the measuring device.    
   
   
       9 . The paper sheet conveying apparatus according to  claim 8 , further comprising a third notify device which notifies replacement of the conveying belt, based on the amount of displacement of the paper sheet detected by the detection device, the cumulative driven time of the conveying belt measured by the measuring device, and the time passed after the installation of the conveying belt.  
   
   
       10 . A paper sheet conveying apparatus comprising: 
 a conveying belt which moves and conveys a paper sheet;    a jam detection device which detects a jam of a paper sheet conveyed by the conveying belt;    a detection device which detects the amount of displacement of the conveying belt from a reference position after the paper jam is cleared;    a judgment device which judges whether the conveying belt is to be driven, based on the amount of displacement of a paper sheet detected by the detection device; and    a control device which drives the conveying belt at a low speed, when the judgment device judges the conveying belt to be driven, and after the low-speed driving, variably controls the speed of the conveying belt based on the amount of displacement detected by the detection device.