JPS6010980Y2 - Paper sheet removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper sheet take-out device that is employed in, for example, an automatic mail reading and sorting machine, and that sequentially takes out postal letters, etc., stored in a supply chamber one by one.

Normally, this type of paper sheet take-out device transfers a group of paper sheets stored in a supply chamber in an upright position in a horizontal direction, and uses a single-sheet pick-up mechanism provided on the side in the transfer direction to remove the paper sheets from the forefront. From there, they are taken out sequentially in a direction perpendicular to the transport direction.

However, the conventional single-sheet pick-up mechanism does not shift the front-most sheet in the supply chamber from the second sheet in advance, but directly takes out the front-most sheet by adsorbing it to the belt surface. It was configured.

Therefore, the frontmost sheet to be taken out and the second sheet are in contact over a wide area, and when the frontmost sheet is taken out, the second sheet is held together by frictional force. There is a problem in that so-called two-sheet removal is likely to occur, in which the sheet is taken out at the same time.

The present invention was developed based on the above circumstances, and its purpose is to reduce the contact area with the second sheet by shifting the frontmost sheet in the supply chamber in advance in the take-out direction. The object of the present invention is to provide a paper sheet take-out device that can reliably take out one sheet by taking out the frontmost sheet after the first step.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

In the figure, reference numeral 1 denotes a supply chamber that can collectively accommodate a large number of paper sheets 2 stacked in the plane direction in an upright position. It is formed at a part of the corner with the side plate 4 provided at right angles to the side plate 4.

A transfer mechanism 5 made of a spiral body is arranged at the rear of the supply chamber 1, and receives falling paper sheets 2 carried in from a paper sheet carry-in path 6 provided above, and transports them in the surface direction. and sequentially feed it into the supply chamber 1.

Therefore, the sheet group 2 in the supply chamber 1 is supplied to the single sheet take-out mechanism 7 provided on the front end side by the thickness of the fed sheet 2.

The single sheet take-out mechanism 7 includes a shifting mechanism 8 that shifts the frontmost sheet 2 in the supply chamber 1 in advance in the take-out direction to reduce the contact area with the second sheet 2; It is comprised of a suction conveyance mechanism 9 that sucks the frontmost paper sheet 2 shifted by the mechanism 8 onto the surface of the take-out belt and takes it out.

That is, the smoothing mechanism 8 includes an endless shifting belt 12 which is stretched through rollers 10 and 10° 11 and constantly runs to feed paper sheets 2 in the take-out direction, and a paper sheet sent out by this shifting belt 12. It is comprised of a stopper 13 that regulates the amount of leaves 2 to be fed.

The suction conveyance mechanism 9 also includes a take-out belt 15 with holes, which is stretched across a roller 14 provided above the rollers 10 and 11, and runs endlessly in the same direction as the shifting belt 12. 15, and a vacuum suction chamber 16 disposed on the back side of the take-out belt 15.15.

The stopper 13 is configured to be pulled out from the take-out path 17 in synchronization with the timing of suction and take-out of the take-out belt 15.15.

Note that 18 is a guide plate that is provided opposite to the position where the stopper 13 is disposed and prevents the tip of the displaced paper sheet 2 at the front end from being bent.

Reference numeral 19 denotes a paper sheet carry-out path for carrying out the paper sheets 2 taken out by the single-sheet pick-up mechanism 7 to a post-processing device (not shown). An optical detector 20 is provided to detect the edge.

The paper sheets 2 loaded in the supply chamber 1 are transported in the plane direction by the transport mechanism 5, and the frontmost paper sheets 2 come into contact with the shifting belt 12, so that they are taken out in advance. The area of contact with the second paper sheet 2 is reduced.

At this time, the leading edge position of the foremost paper sheet 2 is regulated by a stopper 13 that projects into the take-out path 17.

Next, the suction hole of the perforated take-out belt 15.15 faces the hole of the suction chamber 16, so that the frontmost paper sheet 2 is attracted to the surface of the take-out belt 15.15, and at the same time the stopper 13 is moved from the take-out path. The paper sheet 2 is taken out from the take-out path 17 and fed into the sheet discharge path 19.

At this time, since the contact area between the second paper sheet 2 and the foremost paper sheet 2 to be taken out is small, the frictional force between these paper sheets 2 is small. The second and subsequent sheets 2 are not taken out at the same time as the foremost sheet 2.

In this way, the paper sheets 2 are taken out one by one starting from the forefront.

Further, by operating the stopper 13 in accordance with the rear end detection operation of the optical detector 20 as a detection means provided in the paper sheet discharge path 19, the paper sheet 2. Paper sheets 2 can be taken out asynchronously by keeping the interval l between them constant regardless of the size of the paper sheets 2.

In this case, the post-processing capacity can be increased by 1.5 to 2 times compared to paper sheets 2 where the spacing is irregular due to variations in size.
It can be improved by about twice as much.

In the above embodiment, the shifting belt 12 is used as the shifting mechanism 8, but the present invention is not limited to this. For example, as shown in FIGS. 4 and 5, the shifting belt 12 is used as the shifting mechanism 8. As shown in FIGS. 6 and 7, a suction chamber 22 and a perforated belt 2 running on the surface of the suction chamber 22 may be used.
3 may be used.

Further, in the embodiment, the supply chamber 1 is formed at a corner with a horizontally provided base 3 and a side plate 4 provided perpendicularly to the base 3, and the entire device is arranged at a 90° angle with this corner as an axis.
It is also possible to rotate the side plate 4 horizontally.

It goes without saying that the present invention can be modified in various ways without departing from the gist of the invention.

In the description of the other embodiments described above (FIGS. 4 to 7), the same parts as those of the above-mentioned embodiment are given the same reference numerals, and the explanation thereof will be omitted.

As explained above, according to the present invention, the foremost paper sheet in the supply chamber is shifted in advance in the take-out direction to reduce the contact area with the second sheet. It is possible to reduce the friction between sheets, eliminate the need to take out two or more sheets, and achieve the effect that one sheet can be taken out reliably.

In addition, since the trailing edge of the preceding paper sheet that has been carried out is detected and the next paper sheet is taken out with the leading edge position regulated by the stopper, the spacing between the paper sheets can be adjusted. Regardless of the size of the paper sheets, it can be taken out asynchronously and kept in one piece, and the post-processing capacity can be improved by about 1.5 to 2 times compared to the case where the spacing is irregular due to variations in the size of the paper sheets. It has the effect of being able to do something.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view showing an embodiment of the present invention, Fig. 2 is a schematic front view of the main parts of the embodiment, and Fig. 3 is an explanatory diagram showing the state of taking out paper sheets in the embodiment. , FIG. 4 is a schematic side view of the main part of another embodiment of the present invention, FIG. 5 is a schematic front view of the main part of the same embodiment, and FIG. 6 is a schematic diagram of the main part of another embodiment of the present invention. FIG. 7 is a schematic front view of the main parts of the same embodiment. 1... Supply room, 2... Paper sheets, 7...
...Single sheet take-out mechanism, 8...Shield mechanism, 9
...Adsorption conveyance mechanism, 12...Displacement belt, 15...Take-out belt with holes, 16...
... Vacuum suction chamber, 21 ... Smooth roller, 2
2... Vacuum suction chamber, 23... Belt with holes.

Claims (1)

[Scope of utility model registration request] The paper sheets stored in the supply chamber in a stacked state are transported in the plane direction, and a single sheet take-out mechanism provided on the transport direction side sequentially takes out the paper sheets starting from the frontmost sheet in a direction perpendicular to the transport direction. , a shifting mechanism that shifts the foremost paper sheet in the supply chamber in advance in the take-out direction to reduce the contact area with the second sheet; and a shifting mechanism located on the shifting direction side of this shifting mechanism. A suction conveyance mechanism that faces the suction start part and takes out the frontmost sheet shifted by the shifting mechanism by suctioning it to the extraction belt surface, and a paper sheet that carries out the sheet taken out by this suction conveyance mechanism. a conveyance path; a detection means provided in the sheet discharge path for detecting the rear end of the sheet to be conveyed; What is claimed is: 1. A paper sheet take-out device comprising: a stopper that releases the restriction in response to a detection signal from a detection means provided and allows the suction and conveyance mechanism to take out the paper sheet.