JPH03227693A - Staple detecting mechanism - Google Patents

Abstract

PURPOSE:To detect the propriety of a staple and to shorten processing time by detecting it while conveying it by solely bringing contact terminals into contact with right and left end bends of a staple stylus from the rear surface of a stapled medium to detect its conduction. CONSTITUTION:A pair of contact terminals 10 formed of a conductive material to be solely in contact are provided at a pair of end bends 9 of a stable 8 exposed at the rear side of a stapled medium 1 of an integrated unit 6. After the stapled medium 1 is started to be fed, the terminals 10 are elastically brought, if the staple is normal, into contact with the pair of end bends 9, conducted by a voltage applied between the terminals 10 through the staple 8 to confirm the proper stapling. If the stapling is improper, one of the bends 9 of the staple 8 is not disposed on the rear surface of the medium 1 and one of the terminals 10 is not brought into contact with the bends 9. Accordingly, it is not conducted to detect a staple failure.

Description

[Detailed Description of the Invention] [Summary] This invention relates to a stapling detection mechanism that can detect continuity by individually contacting a pair of contact terminals from the back side of a stapled medium to the left and right bent portions of the tip of the stapling needle. The purpose of the present invention is to provide a stapling detection mechanism that can easily confirm whether or not the stapling has been performed normally. A conductive needle that elastically contacts a pair of tip bent portions of a stapling needle formed of a conductive material bent on the back side of the stapled medium after the conveyance of the medium has started. Equipped with a pair of contact terminals made of material, a voltage is applied between the pair of contact terminals, and the presence or absence of electrical continuity is detected when the pair of contact terminals come into contact with the bent portions of the left and right tips of the staple needle. The configuration is as follows.

[Industrial application field]

The present invention relates to a paper stacking mechanism for stacking documents, etc., and in particular, to detect continuity by individually contacting a pair of contact terminals from the back side of a stapled medium to the bent portions of the left and right tips of stapling needles, respectively. The present invention relates to a stipple detection mechanism that can perform the following steps.

In recent years, with the advancement of office automation (OA), clerical work has been automated. For example, in order to save labor in government offices and improve services for residents, resident cards, seal certificates, etc. issued by local governments such as city halls can be automatically processed. Processing equipment is being developed. This device prints the certification information and then affixes the certification stamp to issue the issue, but when issuing multiple copies at once, they are automatically stapled, so you can confirm that they have been stapled correctly. A method is desired.

[Conventional technology]

Previously, various certificates issued by local governments, such as resident cards and seal certificates, were issued manually at counters at city halls, 1st ward offices, etc., where staff were available. In addition, there is a demand for labor saving and improvement of resident services, and recently, patent application No. 71914 (1986)
Print media issuing devices such as those proposed in No. 6 have been developed.

As shown in FIG. 5, this device consists of a paper supply section 2.0 in which printing paper 1a is accumulated and stored and equipped with a feed roller 20. Conveyance path 3. Printer unit that performs printing 4. Stamp part 5. The transport path 3 is provided with feed rollers R1 to R3 and press rollers R4 to R6, which are driven by the rotation of a motor (not shown).

With such a configuration, the printing paper 1a fed out from the paper supply unit 2 by the feeding roller 2° is conveyed along the conveying path 3a in the six directions of the arrows by the feeding rollers R1 to R3, and the certification information is printed in the printer unit 4. The paper is then stamped by the stamp section 5 and sent to the stacker section 6a.

Here, the printing paper 1a sent to the stacker section 6a
When there are multiple sheets, the operator manually staples and issues them. That is, as shown in the plan view and side view of FIG. 6(a) and FIG.
The leading edge of the image b penetrates the back surface of the printing paper 1a and is bent inward to form leading edge bent portions 9a to 9d.
The printing paper 1a is bound and issued.

[Problem to be solved by the invention]

According to the above-mentioned conventional method, multiple sheets of printing paper are stapled manually and stapled defects can be confirmed, but if the stapling work is automated,
Since it cannot be confirmed, there is a problem that the reliability of the device is low.

SUMMARY OF THE INVENTION An object of the present invention is to provide a stapling detection mechanism that allows easy confirmation of whether stapling has been performed normally.

[Means for Solving the Problems] FIG. 1 is a diagram showing the principle of the present invention, in which (a) is a side view and (b) is a bottom view.

In the figure, 1 is a medium, 6 is a collecting part, 9 is a bent tip part, 8 is a stapling needle formed of a conductive material, 10 is provided below the collecting part 6, and is the back side of the stapled medium 1. These are a pair of contact terminals made of a conductive material that elastically contact the pair of tip bent portions 9 of the stapling needle 8 bent at , after the transfer of the medium 1 is started.

Therefore, by applying a voltage between the pair of contact terminals 9, when the pair of contact terminals IO comes into contact with the pair of tip bent portions 9 of the stapling needle 8, the presence or absence of electrical continuity is detected. .

[Effect]

When stapling a plurality of media 1 accumulated in the accumulation section 6, a pair of tip bent portions 9 of the stapling needle 8 are bent on the back side of the medium 1.

After the transportation of the stapled medium 1 is started, if the stapling is normal, each of the pair of contact terminals 10 elastically contacts the pair of tip bent portions 9 independently, and the pair of contact terminals 10 The applied voltage causes electricity to flow between the pair of contact terminals 10 via the stapling needle 8, thereby confirming that stapling has been performed normally. Further, if the stapling is not normal, at least one of the tip bent portions 9 of the stapling needle 8 is not on the back surface of the medium 1, and at least one of the contact terminals 10 does not contact the tip bent portion 9, so no electricity is applied. A defect is detected.

In this way, it is possible to easily check whether or not the stapling has been performed normally.

[Example] Hereinafter, a second example will be described in which the stipple detection mechanism according to the present invention is applied to an automatic printing medium issuing device equipped with a stapling section.
This will be explained with reference to the figures and FIG.

The same reference numerals indicate the same objects throughout the figures. In addition, the parts in FIG. 2 with the same names as in FIG. 1 correspond to each other.
, 10b is the medium 1. of FIG. They correspond to the accumulation section 6 and the contact terminals 10, respectively.

As shown in the side view of FIG. 2(a), a staple portion 7b is provided at the right end portion of the stacker portion 6b. Star 7
The print sheets 1a accumulated in the force section 6b are configured such that their left ends are pressed by a pressing lever (not shown) and aligned at their right ends.

The staple portions 7b are arranged at two positions spaced apart from each other in the width direction of the printing paper 1a at a position approximately 10 marks from the right end of the printing paper 1a so as to staple at two locations.

A feed roller R7 and a presser roller RIO are provided near the left end of the stacker section 6b, and the presser roller RIO is normally retracted upward, but is moved downward and stacked by the excitation of a plunger magnet (not shown). The printing paper 1a is held between the feed roller R7 and the printing paper 1a.

Further, a conveyance path 3a is provided to the left from the stacker section 6b,
The transport path 3b branches from the transport path 3a, and there is a gate G at the branch point.
I is provided, and the gate Gl is normally located downward.

Feed rollers R8, R9 and press rollers R11, R12 are arranged on the conveyance paths 3a, 3b, an issuing port 6c is provided at the end of the conveyance path 3a, and a reject section 6 is provided at the end of the conveyance path 3b.
d is provided. The feed rollers R7 to R9 are shown in Fig. 2 (
As shown in C), it is connected to motor M2.

Contact springs 10a to 10d fixed to a rotating shaft 11 are provided below the stacker portion 6b, and the rotating shaft 11 is connected to a lever 13.
Through the plunger magnet (hereinafter referred to as PM)
12, and rotates by a predetermined angle by excitation/release of PM12. Here, 14 represents a spring, and 15 represents a stopper.

As shown in the bottom view of the main part of FIG. 2(b), the contact spring 10
a-10d is made of an elastic conductive material 2, for example, a brass plate for springs, and contact springs 10a, 10b, and 10c
, 10d are arranged in pairs at intervals, and when the rotation shaft 11 rotates, as shown by the two-dot chain line in FIG.
The tip of d contacts the printing paper 1a through holes 60a and 60b in the bottom surface which are a predetermined distance away from the terminal end of the stacker section 6b. Then, immediately after the stapled printing paper 1a starts to be transported in the direction of the arrow, the staple needle 8
The bent tip portions 9a, 9b of the needle 8 and the bent tip portions 9c, 9d of the stapling needle 8b are arranged so as to come into contact with each other and pass through. (See Fig. 3) Also, the rear ends of the contact springs 10a, 10b, 10c, and 10d are connected to a control section 17 shown in Fig. 2(C) via conductive wires 16a to 16d, and a voltage is applied to each of the sealing cans. has been done.

Further, the control block diagram in FIG. 2(C) shows only the parts related to the present invention, and in the figure, the control section 17 is
Each part is controlled to carry out the stapling operation and transport the stapled printing paper 1a, and also to rotate the rotation shaft 11 and contact springs lOa, 10b and 10c.

10d is detected to determine whether the stipple is good or not.

That is, contact springs 10a, 10b and 10c, 10d.
If there is continuity, it is determined that the stapling has been performed normally, and if there is no continuity until the leading edge of the transported printing paper 1a is detected by the sensor S1, it is determined that the stapling is defective, and the printing paper 1a is sent to the reject section 6b. and instructs processing such as reprinting and stamping.

Further, 18 is a sensor amplifier, 19 to 21 are magnet drivers, 22 is a motor driver, MCI, MG2 is a magnet, and Sl to S3 are sensors.

Since it has such a configuration, the operation will be explained next with reference to the flowchart shown in FIG.

■When a predetermined number of print sheets 1a are stacked on the stacker section 6b, a stacking completion signal is sent to the control section 17, and the control section 17 instructs the magnet driver 19 to operate the staple section 7b by excitation of the magnet MCI. Stapling is performed on the printing paper 1a.

■When stapling is completed, the control unit 17 instructs the magnet driver 20 to rotate the rotating shaft 11 by excitation of the PM 12, and the contact springs lOa to 10d swing to rotate the printing paper 1.
Touches the bottom surface of a.

■Next, the presser roller RIO descends and clamps the printing paper 1a between it and the feed roller R7, and commands the motor driver 22 to rotate the motor M2 and drive the feed rollers R7 to R9 to feed the printing paper 1a. Move in the direction of the arrow.

3. Then, as shown in FIG. 3, the pair of tip bent portions 9a, 9b of the staple needle 88 on the back side of the printing paper 1a and the pair of tip bent portions 9c, 9d of the staple needle 8b are connected to the contact springs 10a, 10b and 10c and 10d, respectively.

■The bent end portions 9a, 9b, 9c, and 9d are the contact springs 10
a, 10b and 10c, 10d, the contact springs 10a, 1 are moved through the staple needles 8a, 8b.
0b and contact springs 10c and IOd are both detected by the control unit 17, and it is determined that stapling is normal. Then, the excitation of PM12 is released,
Contact springs 10a-10d return to their original positions.

(2) The printing layer paper 1a is directly sent to the issuing port 6c.

Then, the sensor S2 detects this, and the rotation of the motor M20 is stopped.

■Also, until the sensor S1 detects the printing paper 1a, the conduction of the contact springs 10a and 10b and the contact springs 10c,
When continuity of at least one of the conductors 10d is not detected, it is determined that the stem temple is defective. Then, the excitation of the PM 12 is released, and the contact springs 10a to 10d return to their original positions.

(2) Then, the control unit 17 commands the magnet driver 21 to switch the gate G1 by excitation of the magnet MG2, and the printing paper 1a is sent to the conveyance path 3b and rejected by the reject unit 6.
dheridirected. When the sensor S3 detects the completion of rejection, the rotation of the motor M2 is stopped, and the control unit 17
commands the device control section (not shown) to reissue the printing paper 1a.

(2) Eventually, the printing sheets 1a are sequentially stacked in the stacker section 6a, and the flow from (2) onwards is repeated.

In this way, it is possible to prevent the printing paper 1a with staple defects from being issued and print, stamp, etc. again and issue it as a normally stapled document. Since the stapled printing paper 1a can be detected while being transported, no time is required for detection, and moreover, the quality of staples of the printing paper 1a can be automatically detected using a simple and inexpensive mechanism.

In the above example, the contact springs lla~
Although we have described the case where the lid is brought into contact with the bottom surface of the printing paper 1a by swinging, the printing paper 1 is always moved from the bottom surface of the stacker section 6a on the condition that the stacking of the printing paper 1a is not obstructed.
It is also possible to place it in a position where it touches the bottom surface of a.
A similar effect can be obtained.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to detect the quality of staples by bringing the contact terminals into contact with the bent ends of a pair of stapling needles, respectively, based on the presence or absence of electrical continuity, and the detection can be performed while conveying the medium, so that it can be processed. This has the effect of reducing time and gaining high reliability with a simple and inexpensive mechanism.

[Brief explanation of drawings]

Fig. 1 is a diagram of the principle of the present invention, Fig. 2 is a configuration diagram showing an embodiment of the present invention, Fig. 3 is an explanatory diagram of the embodiment, Fig. 4 is a flowchart of the embodiment, and Fig. 5 is a diagram showing the embodiment of the present invention. FIG. 6 is a side view showing an outline of the print medium issuing device to which the present invention is applied. FIG. 6 is an explanatory diagram of staples. In the figure, 1 is the medium, 1a is the printing paper, 3.3a+
3b is a conveyance path, 6 is an accumulation part, 6a and 6b are stacker parts, 8 and 8a are stapling needles, 9.9a to 9d are tip bending parts, IO is a contact terminal, and 10a to 10d are contact springs. (α) Imi 11 Mento] Δ<, 14th day l Principle Diagram 11 Note (cL) Iman+1 6th] [≧] (shi) Saisakuzoku Menkiku ≦To day t0 Real O 2
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Claims (1)

[Claims] A plurality of media (1) aligned and stacked in a stacking section (6)
In an apparatus for stapling and transferring a medium, a pair of stapling needles (8) formed of a conductive material are provided under the accumulation part (6) and bent on the back side of the stapled medium (1). A pair of contact terminals (10) made of an electrically conductive material are provided at the tip bent portion (9) of the pair of contact terminals (10), each of which comes into elastic contact with each other after the transfer of the medium (1) is started. A voltage is applied between the contact terminals (10), and when the pair of contact terminals (10) come into contact with the pair of tip bent portions (9) of the staple needle (8), the presence or absence of electrical continuity is detected. A steple detection mechanism characterized by: