JPS60162699A - Document inserting machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a document insertion machine for inserting a document into an envelope, and more particularly, the present invention relates to a document insertion machine for inserting a document into an envelope. This invention relates to a document insertion machine that can detect whether or not the document is inserted.

[Prior Art] When sending a large number of mail items at once, such as direct mail, there are generally two types of machines: a document insertion machine that inserts a document into an envelope, and a sealing machine that applies glue to the flap of the envelope and folds it to seal it. are used in combination. Various types of document inserters have been proposed for this purpose, but
- As an example, a case will be described in which a document is fed into an envelope by an insertion roller as shown in FIG.

FIG. 1 is a partially omitted perspective view of a conventional document inserter, not showing the main parts. In the figure, 10 is an envelope feeding section, 20 is an envelope conveying section,
30 is a document insertion section. Envelopes E are placed on the envelope mounting table 11 in a stacked manner with the address side facing up, and when the supply roller 12 rotates in response to a signal to be described later, the envelopes E are stacked on the envelope mounting table 11 with the address side facing upward. The envelopes 1mE are fed one by one onto the envelope conveying section 20 by the functions of the paper handling plate 13 and the paper sorting plate 13. In the envelope conveying section 20, a pair of rollers 21 and 22 are rotatably supported on the machine frame at a predetermined interval, and a conveying belt 23 is stretched between them.
A pair of pressing rollers 24 and 25 is attached to each pair of rollers.

A pair of envelope guides 26.26a sandwich the conveyor belt 23.
are arranged, the flap part of the envelope is placed on one guide 26, and the bottom part of the envelope is placed on the other guide 26a for conveyance. The guide 26 is fixed at a fixed position, and the other guide 26a is movable according to the size of the envelope to be used, and moves the guide plate (no reference numeral) on the envelope mounting table 11 according to the envelope. As a result, it is made to move and anchor in conjunction with this. A stopper 21 is disposed near the end of the conveyor belt 23 and slightly before the pair of rollers 22 so that its tip protrudes above the envelope conveying surface, and the conveyed envelope is temporarily stopped at that position. When a document is inserted into the envelope, the stopper 27 receives a signal to be described later, and an actuating device (not shown) is activated, and the tip of the stopper 27 is retracted below the envelope conveying surface. It is ejected out of the aircraft from between Pair 25.

The document insertion section 30 contains the text tliil! There is a placing stand 31, and a pair of guide plates 32 are provided on the upper surface of the stand to regulate the direction of movement of the document to be inserted, one of which is movable so that it can be adjusted according to the width of the document. ing. There is a pair of upper and lower insertion rollers 33 between the document placement table 31 and the envelope guide 26, and their engagement generatrix is located slightly below the lower surface of the guide 26, as is clear from the partially cross-sectional explanatory view of FIG. In addition, the pair of upper and lower insertion rollers 33 are arranged diagonally so that the document being fed hits the lower surface of the guide 26 in the diagonally upward direction. A stopper 34 is provided protrudingly between the insertion roller 33 and the document mounting table 31, and when a signal to be described later is issued, the stopper 34 is retracted downward, so that the document can be engaged between the insertion rollers 33. ing. A blower (not shown) is provided in the lower space between the insertion roller 33 and the envelope guide 26, and blows air from below onto the flap part of the envelope nE that is being conveyed, so that the envelope moves to the stopper 27.
When stopped, the main body of the envelope E does not inflate and the opening near the flap fully expands. There are a pair of opening claws 35 on both sides of the air outlet of the blower, as shown in FIG.
When the envelope E is stopped, a signal to be described later is emitted and the envelope E enters the opening as shown in FIG.
Stably maintains the open state during insertion. Note that the opening claw 35
There is a bent portion 35a bent inward when shown in FIG. 2 at a lower part thereof, which serves as a lower guide plate when inserting the sentence WD. Furthermore, each rotating shaft marked with an arrow in the figure is constantly rotated during operation of the Akebono machine.

A first sensor (not shown) is located between the envelope guide 26 and the stopper 27, and when it detects that the envelope E is stopped by the stopper 27, it emits a signal, and this signal causes the pair of opening claws 35 to open at 90 degrees. ° Rotate the envelope and insert it into the opening of the envelope as shown in Figure 2, and stopper 3.
4 is retracted below the document mounting table surface. As a result, the document is sealed by the insertion roller 33 as shown in the second figure.
Sent into E. Insertion roller 33 and envelope guide 26
There is a second sensor 36 (not shown) between the two, and when this sensor detects the passage of the end of the document, it emits a signal for a predetermined period of time, and this signal causes the opening claw 35 and the stopper 34 to return to their original positions. At the same time, the actuating device for the stopper 27 is activated: the stopper 21 is retracted below the conveying surface and the envelope with the document inserted therein is ejected from the machine, and at the same time, the supply row 512 is also rotated by this signal. One envelope is supplied to the envelope transport section 20.

The conventional device described above has the following problems, and improvements thereto are strongly desired. First, the document to be inserted into the envelope E is fed into the envelope by the insertion roller 33 as shown in FIG.
After leaving the engagement bus line No. 3, the text is sent into the envelope only by the kinetic energy due to the inertial force applied to the text ID until then. Therefore, if the document is made up of multiple sheets of paper and has a certain amount of mass and strength, the document can be fed to the bottom of the envelope without any problem, but if the document has sufficient mass and strength with only one sheet of paper, If the paper does not have a
As a result, the document is not fully fed into the envelope and stops midway with the end remaining in the flap. At this time, in the conventional device, the passage of the end of the document is detected by the second sensor 36 located between the insertion roller 33 and the envelope guide 26, so the end of the document remains in the flap part as described above. Even when the feeding stops, a signal indicating that the document has passed is emitted, so that even envelopes in which the document has not been completely fed are ejected, and the document has to be manually inserted again afterwards. Especially when used in combination with a sealing machine, if an envelope with incomplete document insertion is fed into the sealing machine,
Not only does this result in poor sealing, but in severe cases, accidents such as damage to the function of the sealing machine occur.

[Object of the Invention] Therefore, the first object of the present invention is to detect that a document to be inserted into an envelope has been completely fed into the envelope, and then operate a stopper to prevent the document from being fed. To provide a document insertion machine in which a complete envelope is not ejected.

The second object of the present invention is to provide a document insertion system that issues a warning to the operator and stops the work when the document is not completely fed and the feeding stops with the end of the document remaining in the flap part. The goal is to provide opportunities.

[Structure of the Invention] In order to achieve the above object, the present invention provides a document insertion machine that blows wind on an envelope flap portion placed on an envelope guide to open it, and feeds a document into the opening.
A seven-point sensor is provided near the fold line of the envelope flap, and an I/O sensor is provided to emit each necessary signal based on the output of the sensor.
It is characterized by having one circuit.

[Description of Embodiment] FIG. 3 is a side explanatory diagram showing the main parts of an embodiment of the present invention in a state where the signal S1 is emitted, and parts common to the conventional device are given the same reference numerals. FIG. 4 is a timing diagram showing the relationship between the light receiving output of the sensor and each signal in this embodiment. As shown in the figure, an air outlet of a blower 37 is disposed below the envelope guide 26 toward the envelope flap, and a signal SI, which will be described later, is placed inside the opening of the envelope E that receives this air. The opening claw 35 operated by is engaged. A photosensor 38 is placed above and a light source 39 is placed below, sandwiching the flap crease line position of the envelope placed on the envelope guide 26, so that the light beam connecting the two passes near the flap crease line. . Reference numeral 34 denotes a stopper, which is in the position shown by the imaginary line until it receives the signal S1, and is retracted downward as shown in the figure in response to the signal SI so that the document can be engaged with the insertion roller 33.

In the document insertion machine of the present invention configured as described above, when the seal 15E has not been sent to the photosensor 38 by the conveyor belt 23, the sensor output is at the L+ level in FIG. 4, and the stopper 34 is at the third At the imaginary line position in the figure, the opening claw 35 is oriented perpendicular to the plane of the paper. When the envelope E is conveyed by the conveyor belt 23 and enters the light beam from the light source 39, the output of the sensor 38 decreases to the second level in FIG. The sensor 38 is connected to a control circuit (not shown), and the control circuit starts counting time when the output of the sensor 38 drops to L+ mustard 2,
The signal SI is generated when the time required for transporting from the position of the sensor 38 to the position of the stopper 27 is 11jt, which is slightly longer. Each actuating device is activated by the signal S1, the stopper 34 moves downward, the opening claw 35 rotates to the state shown in FIG. 3, and the insertion roller 33 feeds the document (not shown) toward the flap opening. start. The document fed by the insertion roller 33 enters the light beam from the light source 39 after a time indicated by Δt in FIG.
The output of will drop from L2 to L3. The control circuit uses this output drop as a trigger to start counting time again, but at this time no signal is generated. When the document is smoothly fed into the envelope and the end of the document leaves the light beam from the light source 39, the output level of the sensor 38 returns from L3 to L2, and at this time the control circuit emits a signal s2. Signal S
2 is the 2 of S2a and S2b that is issued a little later.
The stopper 34 and the opening claw 35 are activated by the signal 32a, and after a short period of time required to complete this operation, the signal S2b is generated, the stopper 27 is activated, and the envelope is ejected as the document is being inserted. , actuates the supply row 512 to supply new envelopes to the transport section 20. When the envelope containing the document is ejected, the output level of sensor 38 returns from L2 to Ll and the control circuit is reset to await the next cycle.

The above explanation assumes that the document is fed smoothly into the envelope. However, if the document is not fed completely and the document stops with the end of the document remaining in the flap, the output of the sensor 38 will be as shown in FIG. As shown by the dotted line, it remains at level 3 and does not return to level 12. In such a case, when the time count that was started when the output level of the sensor 38 previously decreased from L2 to L3 reaches t2, the control circuit issues a signal S3 to activate the alarm device and also The drive is stopped and the operator is alerted to the occurrence of insertion failure.

In the embodiment shown in FIG. 3, the sensor 38 and the light source 39 are vertically opposed to each other near the fold line of the envelope flap, and the light beam is arranged to cover the envelope orthogonally. It is more effective to detect the end of the document if the sensor 38 is placed slightly to the left so that the light beam is incident obliquely into the envelope opening.

Furthermore, assuming that envelopes made of paper with a dark background color are not used, the light flux passing position may be set slightly beyond the opening claw 35, and such a range may be used to express the vicinity of the flap crease line. should be understood as including. Also,
The specific configuration of the control circuit that emits various signals required by the output of the sensor 38 is not essential to the present invention, but is merely a part of the electric circuit that controls the operations of other members of the document insertion machine main body. Of course, any configuration may be used as long as it can output a signal using the relationship shown in FIG.

[Effects of the Invention 1 As detailed above, the document inserter of the present invention provides the following excellent effects.

(1) Seven photosensors are installed near the envelope fold line of the document inserter that feeds documents toward the envelope opening, and each necessary signal is emitted from the control circuit by the output of the photosensor, so that the document is completely inserted. Since it is detected that the envelope has been fed into the envelope and the envelope with the document inserted therein is then ejected, there is no possibility that an envelope with a document inserted incompletely will be ejected as it is.

(2) The above effect tilts the light flux incident on the photosensor (
Further reliability can be achieved by arranging the light beam so that it passes through the flap or slightly inside the fold line of the flap.

(3) When the low output state of the 7 Otosensor during document feeding exceeds a predetermined time, the control circuit issues an alarm and stops the operation of the machine, so envelopes with incomplete document feeding are transferred to the sealing machine as is. , damage to the sealing machine's functionality is completely prevented.

[Brief explanation of drawings]

Fig. 1 is a partially omitted perspective view showing the main parts of a conventional document inserter, Fig. 2 is a partially sectional explanatory view when a document is fed into an envelope in the conventional device, and Fig. 3 is an embodiment of the present invention. FIG. 4 is a side explanatory view showing the main part of the example, and a timing diagram showing the relationship between the light reception output of the sensor and each signal in the present invention. 10... Envelope supply section 20... Envelope transport section 30.
...Document insertion section 38...Photo sensor 39...
Light source patent applicant Duplo Manufacturing Co., Ltd. Figure 1 Figure 2

Claims (4)

[Claims] (1) A document inserter that blows wind on an envelope flap placed on an envelope guide to open it and feeds a document into the opening, and a 7-tooth sensor 38 is provided near the fold line of the flap of the envelope, and A document insertion machine characterized by comprising a control circuit that generates each necessary signal based on the output of the sensor. (2) The photosensor 38 receives the luminous flux emitted by the light source 390 and emits an output.
Document insertion described in section 1) l11. . (3) The text insertion machine according to claim (2), wherein the light beam received by the photosensor 38 is incident obliquely. (4) The document insertion machine according to claim Q), wherein the light beam passes slightly inside the flap crease line. (1) When the low output state of the photosensor 38 exceeds a predetermined time, the control circuit issues an alarm and stops the operation of the machine. Claims (1) to (4)
A document insertion machine according to any of paragraphs.