JPS61277535A - Paper sheet or the like feeder - Google Patents

Abstract

PURPOSE:To improve take-out process capacity and facilitate the setting of succeeding paper sheets by detecting the presence of the paper sheets in front of a take-out belt to drive a transfer belt and a supply pin with high speed in the absence of the paper sheets. CONSTITUTION:The presence of mails A transferred in front of a pocket 35 is judged by a detector 46 provided near an inlet of the chute pocket 35 in front of a take-up belt 38. And when the detector 46 is turned off, a transfer belt 31 and supply pin 32 are moved with high speed, and when the detector is turned on, the belt 31 and supply pin 32 are moved with low speed. Thus, intervals for moving mail group A are shortened to improve take-up process capacity, and since the mails A are moved toward the take-up belt 38, the mail group A... can be easily supplied from behind.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention J] This invention relates to, for example, an automatic mail sorting machine. The sheets are transported to a drop-in pocket and taken out one by one using a take-out belt with a suction chamber inside. in this case,
The supply pins and the conveyor belt are controlled at high speed, medium speed, low speed, and stop. In such devices, the mail is fed at high or medium speed using supply pins and a conveyor belt, and a quantity detector or pressure detector installed in the drop pocket detects a predetermined amount or pressure. In this case, the speeds of the supply pin and conveyor belt are reduced or stopped.

However, if there is a gap between the supplied mail items, the subsequent mail items will be conveyed at high speed after the number of mail items in the drop-in pocket has decreased. For this reason, it takes a long time for the subsequent mail items to be conveyed to the take-out belt, which may reduce the ability of the take-out process.Also, if there is a gap between the mail items, Another drawback was that it was difficult to set up subsequent mail.

[Objective of the Invention 1 This invention was made in view of the above circumstances, and its purpose is to shorten the interval between paper sheets,
It is an object of the present invention to provide a paper sheet supply device which can improve the take-out processing capacity and also allows easy setting of subsequent paper sheets.

[Summary of the Invention] In order to achieve the above object, the present invention provides a detector for detecting the presence or absence of paper sheets, which is provided in front of the take-out belt and at a position not affected by the conveyor belt and the supply pin. When the presence of paper sheets is detected, the conveyor belt and supply pins are driven at high speed, and when the presence of paper sheets is detected, the conveyor belt and supply pins are driven at low speed or stopped.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an automatic mail sorting machine according to the present invention, which has the following configuration. That is, a group A of postcards, envelopes, etc. set in the supply section 1 in a standing position is sequentially picked up by the take-out section 2 starting from the frontmost mail A.
The postal code (sorting designation data) given to the postal item A is read by the reading unit 4 which is disposed midway through the taking-in conveying path 3 where the postal item A is taken out and conveyed one by one. The reading section 4 includes a photoelectric conversion section 41 that photoelectrically converts the postal code on the mail A, and a discrimination section 42 that discriminates the postal code by recognizing a character pattern according to the output of the photoelectric conversion section 41. It is well known.

Next, the postal items A are transported through divided conveyance paths 5a, 5b, and 5c provided in multiple stages in the vertical direction by a gate mechanism (not shown).
, 5d are selectively distributed based on the above reading results.

A plurality of pockets 6 are arranged below the divided conveyance paths 5a, 5b, 5c, and 5d along the lower surface thereof, and the divided conveyance paths 5a, 5b.

The mails A sent into the mailboxes 5c and 5d are sorted and accumulated in predetermined pockets 6 based on the reading results of the reading section 4.

Further, an operation panel 7 serving as an operator panel or a maintenance panel is provided at the bottom of the supply section 1. This operation panel 7 includes a power switch 11 for turning on the power, and a mode changeover switch 1 for switching the reading mode.
2. Consists of a category designation key 13 for inputting category designation data.

Furthermore, above the conveyance paths 3, 5a, . . . , there is a conveyance detector group 10 for detecting the conveyance of mail A on the conveyance path.
is provided.

FIGS. 2 and 3 show the structure of the supply section 1. As shown in FIG. That is, the conveyor belt 31 and the supply pins 32 transport each mail group A to be set in the direction of the arrow a.
..., the drive roller 3 that drives this supply pin 32...
3.33. Drive roller 3 that drives the conveyor belt 31
4.34, drop-in pocket 35 into which the mail group A... conveyed by the conveyor belt 31, supply pin 32... is temporarily placed; this drop-in pocket 35;
A suction chamber 36 that suctions one piece of mail A at the front end of the
, the mail A that is adsorbed by this adsorption chamber 36
It is composed of a take-out belt 38 that takes out the sample upwardly by the suction force of the suction chamber 37, and drive rollers 39 and 39 that drive this take-out belt 38. The driving rollers 34, . . . are rotated by a motor 52, which will be described later, and the driving rollers 39, . . . are rotated by a motor 54, which will be described later.

In addition, the above-mentioned drop-in pocket 35 has l! A detection unit 40 detects whether there is a mail A placed there, that is, whether there is a mail A being sucked by the suction chamber 36. A detection unit 41 is provided to detect whether the number of mail items placed in this pocket is less than a predetermined number.

In addition, in front of the take-out belt 38, the conveyor belt 3
1.1, a detection unit 46 for detecting the presence or absence of mail A is installed at a position not affected by the supply pin 32, that is, near the entrance of the drop-in pocket 35. The detection unit 46 determines whether there is force on the mail A being conveyed to the front of the drop pocket 35.The detection units 40, 41, 46 rotate around the shaft 45 as a fulcrum. A moving detection lever 42, this detection lever 42
It consists of a spring 43 that pulls the sensor with a predetermined tension, and a microswitch 44 that is turned on and off depending on the position of the detection lever 42.

FIG. 4 shows the electrical circuit. That is, the control unit 50 controls the driver 51 and drives the motor 52 according to the detection results from the detection units 40, 41, 46, thereby moving the conveyor belt 31, supply pins 32, etc. at high speed, medium speed, etc. It allows you to move at high or low speeds. for example,
When all the detection units 40, 41, and 46 are off, when only the detection unit 40 is on, and when only the detection unit 46 is off, the conveyor belt 31, supply pin 32, etc. are moved at high speed. It looks like this. Furthermore, when only the detection section 41 is off, and when only the detection section 46 is on,
The conveyor belt 31, supply pins 32, etc. are moved at low speed. Furthermore, the detection unit 40.41.4
6 are all on, the conveyor belt 31, supply pins 32, . . . are stopped.

Further, the control section 50 controls the driver 53 and drives the motor 54 to rotate the take-out belt 38. Furthermore, the control unit 50 controls the driver 55 to drive a pump (not shown), thereby causing the adsorption chambers 36 and 37 to perform suction.

Further, the control section 50 is configured to transport the corresponding mail A according to the postal code supplied from the reading section 4 to the pocket 6 of that postal code.

For example, the driver 56 is used to drive the sorting gates 57 by outputting a sorting gate control signal in response to a conveyance detection signal from the conveyance detector 10.

Next, the operation in such a configuration will be explained.

For example, the operator places mail group A on the conveyor belt 31 of the supply section 1 and turns on a start switch (not shown). At this time, the detectors 40, 41, and 46 are turned off because they do not correspond to the mail A. Thereby, the control unit 50 moves the conveyor belt 31, the supply pins 32, . . . at high speed by driving the driver 52. As a result, the mail group A placed on the conveyor belt 31 is conveyed at high speed by the conveyor belt 31, the supply pins 32, and so on. When the detection unit 46 detects the mail A, the control unit 50 drives the driver 52 to move the conveyance belt 31, supply pins 32, . . . at low speed. As a result, the mail group A conveyed to the entrance of the push-in pocket 35 is conveyed at low speed by the conveyor belt 31, the supply pins 32, and so on.

Next, mail group A is placed in drop-in pocket 35.

is supplied, that is, the detection unit 41.46 detects the mail item A.
If detected, the control unit 50 stops the conveyor belt 31, the supply pins 32, and so on.

In this state, the mail A at the front end of the drop-in pocket 35 is sucked by the suction chamber 36, 37,
It is taken out upward by the take-out belt 38. Thereafter, the foremost mail item A is taken out one by one upward by the take-out belt 38.

The mail A taken out by the take-out belt 38 of the supply section 1 is conveyed by the take-out conveyance path 3. During this transportation, the postal code on the mail A is read by the reading section 4. Then, the control unit 50 controls the transport of the mail A according to the postal code. And conveyance detector 10...
By controlling the sorting gates 57 . . . in response to the detection signal, the mail A is accumulated in the pocket 6 corresponding to the postal code. In this way, other mail A
are also sequentially accumulated in the corresponding pockets 6.

Then, the detection unit 41 is turned off, and at this time the detector 46
is on, the control unit 50 controls the conveyor belt 31, supply pin 32, etc. until the detection unit 41 turns on and a predetermined period of time has elapsed (until the drop pocket 35 is nearly full).
Move at low speed.

Further, when the detection unit 41 is turned off and the detector 46 is turned off at this time, the control unit 50 controls the conveyor belt 31, the supply pin 3
2... at high speed until the detection unit 46 is turned on,
After that, the detection unit 40 is turned on and until a predetermined period of time has elapsed,
Move at low speed.

In addition, when only the detection section 46 is off, and when the detection section 40
．． 41, 46 are all off, the control section 50 moves the conveyor belt 31, supply pins 32, etc. at high speed until the detection section 46 turns on, and then, until the detection section 40 turns on and a predetermined period of time elapses. Move at low speed.

As described above, when the detection unit 46 does not detect the mail A, the conveyor belt 31, the supply pins 32, . . .
・It is designed to move at high speed. As a result, the interval between mail group A... movements can be shortened,
As a result, the throughput of the pick-up process is improved, and since the mail pieces A are gathered near the pick-up belt 38, it becomes easier to feed the mail pieces A later.

[Effects of the Invention] As detailed above, according to the present invention, it is possible to shorten the interval between paper sheets, improve the retrieval processing capacity, and furthermore, it is possible to reduce the distance between paper sheets. It is possible to provide a paper sheet feeding device that is easy to set up.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional view schematically showing the configuration of an automatic mail sorting machine according to the present invention, FIG. 2 is a cross-sectional view showing the configuration of a supply section, and FIG. 3 is a plan view of FIG. 2 viewed from above, and FIG. 4 is a diagram schematically showing the configuration of the electric circuit shown in FIG. 1. DESCRIPTION OF SYMBOLS 1... Supply part, A... Mail 1.3... Retrieval conveyance path, 4... Reading part, 6... Pocket, 7... Operation panel, 31... Conveyance belt, 32, ~... Supply pin, 33.34.39... Drive roller, 35... Dropping pocket, 36.37... Adsorption chamber, 3
8... Take-out belt, 4o, 41.46... detection unit, 5o... control unit, 51.53.55.56... driver, 52.54... motor, 57... division Gate. Applicant's agent Patent attorney Takehiko Suzue No. 1 Figure 4

Claims (2)

[Claims] (1) Paper in which a conveyor belt and a supply pin are driven at various speeds by a driving means, the conveyor belt and supply pin convey paper sheets, and the conveyed paper sheets are taken out one by one by a take-out belt. In the leaf supply device, a detector is provided in front of the take-out belt and at a position not affected by the conveyor belt and the supply pin, and detects the presence or absence of paper sheets, and the detection result of this detector indicates that there are no paper sheets. In this case, the paper sheet feeding device is characterized by comprising means for driving the driving means at a high speed, and driving the driving means at a low speed or stopping the driving means when paper sheets are present. (2) The means for driving or stopping the driving means at low speed drives the driving means at low speed when the number of sheets in front of the take-out belt is less than a predetermined amount; The sheet feeding device according to claim 1, characterized in that the sheet feeding device stops.