JPS5913907B2 - Paper sheet sorting device - Google Patents

Description

[Detailed Description of the Invention] The present invention provides information attached to a predetermined side of paper sheets that are conveyed with both front and back sides mixed. This invention relates to a paper sorting device that sorts paper sheets so that one side faces the same direction.

Normally, in an automatic mail collection and stamping machine, as shown in FIG. Based on the stamp position information detected in
The positions of the stamps on all letters A... are unified to either the top or bottom.

Next, this letter A is stamped by stamp detectors e and 6 to determine whether the position of the stamp is near the leading edge or the trailing edge in the transport direction, and then stamped by the corresponding stamping devices f and fK, respectively. Ru.

Next, this letter A is selectively distributed to a first conveyance path or a second conveyance path j for forward and backward reversal equipped with a switchback device i by a direction distribution device g having a vane-like gate. After that, they are merged again, the front and back sides of all the letters A are arranged, and the letters A are conveyed to the sorting and stacking section k with all the stamps on the front side or the other side, and are divided into regular mail, stampless mail, and express mail. It is now sorted into mail, etc. and accumulated.

In this way, in order to arrange the letters A so that the stamped sides face in the same direction based on information such as the stamps attached to a specified side of the letter A, conventionally, The configuration is such that the letters A sorted by the directional sorting device g are further reversed in the front-back direction by the switchback device i, and the second conveyance path where the switchback device i is arranged is represented by the number 3. The curved path shall be as follows.

In addition, in order to ensure that the letters A... that merge are in the correct order and do not overlap, it is necessary to make the first conveyance path long, and usually the first conveyance path is determined by the layout of the entire machine. In order to simplify the process, the second conveyance path j is designed to pass outside the second conveyance path j, which causes the problem that the second conveyance path j bulges outward, resulting in an increase in the size of the machine.

The present invention has been made based on the above circumstances, and its purpose is to transport paper sheets as they are, or to sort them in a direction in which the front and rear directions of the paper sheets are reversed and transported. The purpose of this invention is to provide a paper sheet sorting device that can simplify the configuration by adopting a directional sorting device with a switchback function that can perform the following steps.

Hereinafter, one embodiment of the present invention will be described based on FIGS. 2 to 6.

Figure 2 shows the layout of the automatic mail collection and stamping machine, in which a letter A conveyed from the supply section 1 or a pre-processing machine (not shown) such as an automatic mail sorter is detected by stamp detectors 2, 2. Based on the detected stamp position information, the stamps are selectively sorted by the sorting gate 5 to the main conveyance path 3 or the up-and-down conveyance path 4 created by twisting the conveyor belt, and then rejoined, and the positions of all the stamps of letters A... are unified to either the top or bottom.

Next, this letter A is detected by the stamp detector 6.6 as a stamp (
After detecting whether the position of the paper (not shown) is close to the leading end or the trailing end in the conveying direction, a stamp is stamped by the corresponding stamping devices 7, 7.

Next, this letter A is selectively sorted into the first conveyance path 9 or the second conveyance path 10 for forward and backward reversal by the direction distribution device 8 having a switchback function, and then joins again.

At this time, the lengths of the first and second conveyance paths 9 and 100 are designed in relation to each other, so that they can join together in an orderly manner without disrupting the conveyance order.

Then, the front and back sides of all the letters A... are arranged, and the letters A... are conveyed to the sorting and stacking section 11 with all the stamps on the front side or the other side, and are sent to the sorting and stacking section 11 for regular mail, stampless mail, and express mail. It is divided into categories and accumulated.

However, since this automatic postal sorting and stamping machine uses the directional sorting device 8 having a switchback function, it is possible to use the directional sorting device g and the switchback device 0 as in the past without installing the directional sorting device g and the switchback device 0. This means that the front and back sides of A can be aligned.

In addition, the direction distribution device 8 having the above-mentioned switchback function
has a configuration as shown in FIG.

That is, in the figure, 12a is an ejection path that constitutes the terminal end of the conveyance path 12 that conveys the letter A that has passed through the stampers 7, 7. A void chamber 13 is formed to be in a free state.

Furthermore, a first intake conveyance path 9a constituting the starting end of the first conveyance path 9 is located at one end of the void chamber 13, and a starting end of the second conveyance path 10 is located at the other end. A second intake conveyance path 10a constituting a section is formed respectively.

The discharge path 12a is formed between mutually opposing surfaces of the first conveyor belt 15, which is folded back by being passed around the roller 14a, and the second conveyor belt 16, which is folded back by being passed around the roller 14b, which are in close contact with each other. There is.

Further, as shown in FIG. 5, the gap chamber 13 is formed by passing the letter A around a roller 14c disposed near the end of the conveyance path 12a, so that the tip of the letter A to be carried out has an angle of about 20 degrees. A third conveyor belt N7, 17 is stretched so as to have a straight portion intersecting the unloading direction so as to be in contact with the unloading path 12a, and has a transport component in the same direction as the unloading path 12a, and a roller 14d.
, 14e, the fourth conveyor belt 17 is stretched so as to have a straight line along the straight line of the third conveyor belt 17 with a gap therebetween, and has a conveying component in the opposite direction to the unloading path 12a. It is formed between mutually opposing surfaces with the conveyor belt 18.

Further, the first intake conveyance path 9a has a straight portion of the fifth conveyance belt 19, which is stretched around a roller 14f disposed near the roller 14e, and the third conveyance belt 17, which are in close contact with each other. It is formed between opposing surfaces.

The second intake conveyance path 10a is a sixth conveyor belt 2 that is stretched around a p-roller 14g arranged near the roller 14a.
0 and the straight portion of the first conveyor belt 15 in the folding direction, which are formed between mutually opposing surfaces that are in close contact with each other.

Furthermore, below the void chamber 13, as shown in FIG. 5, a lower guide plate 21 is provided which supports the lower end surface of the letter A in the free state.

Also, a third conveyor belt 17°1 corresponding to the void chamber 13
Pinch rollers 22 are arranged outside 70.

This pinch roller 22 is rotatably attached to the free end side of a swinging arm 24 attached to a drive shaft 23a of a rotary solenoid 23. The structure is such that it can come into rolling contact with the fourth conveyor belt 18 through a gap of .17.

Incidentally, reference numeral 25 shown in FIG. 4 is an optical letter detector consisting of a light source and a light receiving device disposed at the terminal end of the carry-out path 12a.

The letters A, which are conveyed in an upright position and in the side direction by the carry-out path 12a, face each other and run in opposite directions to form a void chamber 13, as shown by the two-dot chain line in FIG. Third and fourth conveyor bells N7, 17, 1
8, the third one has the same transfer component as the discharge path 12a.
The robot enters toward the conveyor bell N7,17.

If it is determined that this letter A does not require reversal in the front-rear direction and is to be taken into the first intake conveyance path 9a, the pinch roller 2 is moved as shown in FIG.
2 is positioned outside the void chamber 13, and is sent into the first intake conveyance path 9a by the inertial force released from the discharge path 12a and the transfer force accompanying contact with the third conveyance bell) 17.17. It turns out.

Further, if it is determined that the letter A carried into the gap chamber 13 is a letter that requires reversal in the front-back direction and is to be taken into the second intake conveyance path 10a,
The rotary solenoid 23 is operated after an appropriate time based on a detection signal of the trailing edge of the letter A from the letter detector 25 disposed at the terminal end of the letter A.

Then, as shown in FIG. 7, the pinch roller 22 is projected into the gap chamber 13, and the letter A along the third conveyor belt 17. It is forcibly pressed onto the fourth conveyor belt 18, and is transported with the front and rear directions reversed.

At this time, the fourth conveyor belt 18 is stretched at a slight angle, and the fourth conveyor belt 18 is slightly bent by the pressing force of the pinch roller 22, so that the end of the letter A is transferred to the second take-in conveyance path. 10a, and is reliably and smoothly fed into the second intake conveyance path 10a.

In the above-mentioned embodiment, the case where the present invention is applied to an automatic postal collection and stamping machine has been described, but the present invention is not limited to this, and the present invention is not limited to this. Any type of material may be used as long as it is necessary to transport the materials as they are without reversing them, or to selectively perform an operation of reversing the front and rear directions and transporting the materials so that they are arranged front and back.

In addition, stamps are information attached to one side of a paper sheet, but for example, barcodes, other marks, symbols, etc.
It may be a number or the like.

In addition, it goes without saying that the present invention is not limited to the above-described embodiments, and that various modifications can be made without departing from the gist of the present invention.

As described above, the present invention employs a directional sorting device that has a switchback function for reversing the front and rear directions of paper sheets in addition to the paper sheet sorting function.

Therefore, there is no need to install a dedicated switchback device in addition to the directional distribution device as in the past, and the transport path can be shortened, making the machine more compact and reducing costs by simplifying the layout. It is easy to maintain and maintain, and is particularly useful if adopted for an automatic mail sorting and stamping machine.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing the layout of a conventional mail automatic collection and stamping machine, and FIG. 2 is a schematic front view showing the layout of a mail automatic collection and stamping machine employing an embodiment of the present invention. , FIG. 3 is a schematic plan view of the direction distribution device which is the main part of the present invention, and FIG. 4 is a schematic side sectional view of the main part.
FIGS. 5 and 6 are schematic plan views showing the operating state of the main parts. A... Paper sheets, 6... Detector, 8...
...Direction sorting device with switchback function.

Claims (1)

[Claims] 1. A detector that detects information added to one side of paper sheets that are transported with both front and back sides mixed, and the information obtained by this detector can be used to transport paper sheets as they are, It is equipped with a direction sorting device with a switchback function that selectively sorts the paper sheets in the direction in which they are conveyed by reversing the front and back directions of the paper sheets, so that one side of the paper sheets with information attached faces the same direction. A paper sheet arranging device characterized in that the paper sheet arranging device is adapted to arrange the paper sheets in order.