A kind of survey paper apparatus of automatic detection phase paper length
Technical field
The utility model relates to the survey paper apparatus, specifically is a kind of survey paper apparatus of automatic detection phase paper length.
Background technology
At present, make photograph album and mainly be by manually measuring the length of printing paper, this method efficient is low, and degree of accuracy is low, and labor capacity is big; Perhaps measure wherein a certain, import the length specification of printing paper then, allow printing paper walk half apart from coming impression.Therefore but printing paper might be cut out to such an extent that forbidden to cause printing paper different in size, causes not impression in the middle of printing paper of machine, make folding line inaccurate, the photograph album of finally making of poor quality.
The utility model content
The present invention has overcome defective of the prior art, and a kind of length that does not need manually to survey printing paper when making photograph album is provided, to improve speed of making photograph album and the automatic detection that reduces the artificial linear measure longimetry error of the being surveyed survey paper apparatus of paper length mutually.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical programs:
A kind of survey paper apparatus of automatic detection phase paper length, comprise the paper feed passage, place the outer paper feed channel blind of printing paper, paper feed passage in the paper feed passage, establishing mutual rolling on the paper feed channel blind and compressing the transport roller that printing paper advances before pushing away, and be used to survey printing paper and be arranged on paper sensor on the paper feed channel blind.
The quantity of transport roller is two groups, and this paper sensor is located between two groups of transport rollers.
The relative prior art of the utility model has following beneficial effect:
1, the utility model can be measured the length of printing paper automatically, has improved the speed of making photograph album, has reduced the error of manual measurement photograph album length, has reduced working strength of workers.
2, simple in structure, easy to operate, measuring accuracy is high, speed is fast.
Description of drawings
Fig. 1 visits the structural representation of printing paper right-hand member for the inductor of present embodiment 1;
Fig. 2 visits another structural representation of printing paper left end for the inductor of present embodiment 1.
Among the figure, transport roller 1 printing paper 2 paper feed channel blind 3 paper inductors 4 paper feed passages 5
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of survey paper apparatus of automatic detection phase paper length, the paper feed channel blind 3 of comprise paper feed passage 5, place printing paper 2 in the paper feed passage 5, paper feed passage 5 is outer, establishing mutual rolling on the paper feed channel blind 3 and compressing the transport roller 1 that printing paper advances before pushing away, and be used to survey printing paper 2 and be arranged on paper sensor 4 on the paper feed channel blind 3.
The quantity of transport roller 1 is two groups, and these paper sensing 4 devices are located between two groups of transport rollers 1.
Embodiment 1
A printing paper is placed in the paper feed passage 5, and described transport roller 1 rolls relatively, and printing paper is advanced from left to right.As shown in Figure 1, be furnished with one group of paper inductor 4 in the present embodiment between two groups of paper feeding stick, when printing paper moved to paper inductor 4, paper inductor 4 detected printing paper, and system starts the clock.As shown in Figure 2, when printing paper left paper inductor 4, promptly the paper inductor 4 on the paper feed channel blind 3 did not detect printing paper, system finishing computing time.
The utility model begins to detect the used time of printing paper rear end to paper inductor 4 from the front end that detects printing paper by one group of paper inductor 4, multiply by the chart drive speed of printing paper, promptly obtains the length of printing paper.