JPH0344758Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a paper sheet alignment device that is applied to, for example, a paper sheet supply section of a take-out device that takes out paper sheets one by one.

[Technical background of the invention and its problems]

For example, in a paper sheet take-out device, the paper sheets supplied to the supply section are held in an upright position by a pin conveyor and sent to the take-out section. There is a known device in which the parts are taken out one by one.

However, such an apparatus has a problem in that the paper sheets to be fed to the feeding section must be aligned in advance.

Therefore, recently, an alignment roller was installed in contact with the bottom edge of the paper sheets sent by the pin conveyor.
It has been proposed that the alignment roller is eccentrically rotated to vibrate the paper sheets to align them.

However, as shown in FIGS. 7a and 7b, the conventional alignment roller 1 has a shaft 2a on the upstream side in the feeding direction.
Since the eccentricity _e1 of the shaft 2b and the eccentricity _e2 of the downstream shaft 2b are the same, that is, the vibration stroke is the same over the entire length, the sheets whose bottom edges are aligned will vibrate in the latter half as they are fed. If too much is applied, it will become irregular, and especially if there is a fold m at the lower end like the envelope (paper sheet) p shown in Fig. 8, it will become irregular as shown in Fig. 9. There is a case where the aligned envelopes p become uneven again and another envelope p is placed on the flap m. Moreover, there is a problem of loud noise.

[Purpose of invention]

The present invention was developed based on the above-mentioned circumstances, and its purpose is to be able to gradually align paper sheets as they are fed, to prevent the aligned portions from being disintegrated again, and to avoid noise. An object of the present invention is to provide a paper sheet alignment device that can reduce the amount of paper sheet alignment.

[Summary of the idea]

In order to achieve the above object, the present invention includes a feeding mechanism that holds paper sheets in an upright position and sends them toward a post-processing section, and a mechanism that contacts the lower end of the paper sheets fed by this feeding mechanism, and that In a paper sheet alignment device equipped with an alignment member such as an alignment roller that aligns paper sheets by applying vibration along with the alignment member, the vibration stroke of this alignment member is determined in the feeding direction of the paper sheets. It is characterized by being configured so that it becomes smaller continuously toward .

[Example of idea]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

Figures 4 and 5 show a paper sheet retrieval device to which the paper sheet alignment device according to the present invention is applied. This is the supply section where the The supply unit 11 includes a floor 12 that supports the lower end of the paper sheets p, a first side plate 13 that guides one rear side of the paper sheets p, and a second side plate 13 that faces the rear end surface of the paper sheets p. This feeding section 11 is also provided with a pin conveyor 15 as a feeding mechanism for paper sheets p.

The pin conveyor 15 has slits 16, 16 provided in the floor 12 in parallel with the first side plate 13.
The transfer pin 17... is projected from the transfer pin 1.
7... holds the paper sheets p... in an upright position while feeding them to the take-out section (post-processing section) 18.

The above-mentioned take-out section 18 has a vacuum suction chamber 20 arranged on the back side of a take-out belt 19 having a large number of holes. 1 by vacuum suction
The sheets are taken out one by one and transported to a conveyance path 22 constituted by a conveyor belt 21, etc.

Further, the supply section 11 is provided with alignment rollers (alignment members) 23, 23 for aligning the paper sheets p. , 16, and partially protrudes from openings 24, 24 provided in parallel with the openings 24, 16. In addition, the alignment rollers 23, 23 are
As shown in FIGS. 1 and 2, it has a circular cross section, and shafts 25a and 25b are provided at both ends thereof, and is rotatably held in bearings 26a and 26b via these shafts 25a and 25b.
Further, the driving force from the motor 27 is applied to the shaft 25a on the upstream side in the feeding direction, which is connected to a pulley 28, a belt 29,
The vibrations are transmitted sequentially through the pulleys 30, thereby causing the alignment roller 23 to eccentrically rotate, giving vibration to the paper sheets p and aligning them. Note that the alignment rollers 23, 23 are rotated in the same direction, so that alignment in the direction of the first side plate 13 is also performed. In addition, the shaft 25 on the upstream side in the feeding direction
a is mounted eccentrically, and the shaft 25b on the downstream side is mounted with almost no eccentricity, that is, the eccentricity _e1 of the shaft 25a on the upstream side in the feeding direction is greater than the eccentricity _e2 of the shaft 25b on the downstream side.
As a result, as shown in FIG. 3, the vibration stroke S of the alignment roller 23 is
is configured to become continuously smaller in the feeding direction of the paper sheet p.

According to the above configuration, as the paper sheets P are fed, the lower ends of the paper sheets P are gradually aligned, and the aligned portions are not forcibly vibrated, so that they will not be broken again. . Moreover, since the vibration becomes smaller as the feed progresses, noise can be reduced.

Furthermore, since the alignment roller 23 has a circular cross section, it can be easily manufactured and provided at low cost.

In the above embodiment, the alignment roller 23 having a circular cross section that rotates more eccentrically toward the upstream side in the feeding direction is used, but the present invention is not limited to this. Triangular cross section as shown in a, square cross section as shown in Figure 6b,
Alternatively, the vibration stroke S of the alignment roller 23 may be made smaller in the feeding direction by making the cross section elliptical and making it closer to a perfect circle toward the downstream side, as shown in FIG. 6c. .

[Effect of idea]

As explained above, according to the present invention, there is a feeding mechanism that holds paper sheets in an upright position and sends them toward the post-processing section, and a mechanism that contacts the lower end of the paper sheets sent by this feeding mechanism and applies vibration. and an alignment member for aligning the paper sheets, and the vibration stroke of this alignment member is configured to decrease continuously in the feeding direction of the paper sheets, so that the The paper sheets can be arranged gradually, the arranged portions will not be disintegrated again, and noise can be reduced, among other excellent effects.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a plan view showing the alignment roller portion, and FIG.
The figure is a front view of the alignment roller, FIG. 3 is an explanatory diagram showing the vibration stroke state of the alignment roller, FIG. 4 is a plan view showing the take-out device, FIG. 5 is a sectional view showing the supply section, and Figures a to c are front views showing different embodiments of the alignment roller, Figures 7 to 9 are conventional examples, and Figure 7a is a side view of the alignment roller. b is also a front view of the alignment roller, No. 8
The figure is a plan view of the envelope, and FIG. 9 is an explanatory diagram of the operation. p... Paper sheets, 18... Post-processing section (take-out device),
15... Feeding mechanism (pin conveyor), 23... Aligning member (aligning roller).

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A feeding mechanism that holds paper sheets in an upright position and sends them toward a post-processing section, and a device that touches and vibrates the lower end of the paper sheets that are fed by this feeding mechanism. and an alignment member for aligning the paper sheets, and the vibration stroke of the alignment member is configured to become continuously smaller in the feeding direction of the paper sheets. Leaf alignment device. (2) The paper sheet alignment device according to claim 1, wherein the alignment member is an alignment roller that vibrates as it rotates.