JPH0812183A - Continuous paper processing device - Google Patents

Abstract

(57) [Summary] [Purpose] When the remaining amount of continuous paper on the mounting table becomes small, the transfer speed is reduced to always perform a smooth transfer operation regardless of the amount of continuous paper on the mounting table. [Structure] A mounting table 4 on which a continuous sheet 3 folded in a zigzag shape is mounted, a tractor 6 for transferring the continuous sheet 3 pulled out from the mounting table 4, and a continuous sheet 3 on the mounting table 4.
Of the paper amount detecting mechanism having an optical sensor 37 for detecting that the remaining amount of the continuous paper 3 has become less than or equal to a predetermined amount, and the tractor 6 for controlling the transfer speed of the continuous paper 3 to be less than or equal to the predetermined speed by the detection signal of the paper amount detecting mechanism. The control unit 19 is provided, and when the remaining amount of the continuous paper 3 becomes small, the transfer speed is reduced to prevent the continuous paper 3 from being transferred in the folded state and to prevent a jam.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous paper processing apparatus for transferring continuous paper by a transfer mechanism such as a tractor or a transfer roller and performing various processes such as cutting.

[0002]

2. Description of the Related Art Conventionally, this type of continuous sheet processing apparatus pulls out a continuous sheet folded in a zigzag shape and sets marginal holes provided at equal intervals in a marginal portion of the continuous sheet on a tractor pin of a tractor as a transfer mechanism. Alternatively, continuous paper is set between a pair of upper and lower transfer rollers that are transfer mechanisms, and the set continuous paper is transferred at a constant speed to perform various processes such as cutting. In recent years, there has been a demand for higher processing speed, and in order to meet this demand, the continuous paper transfer speed has also been increased.

[0003]

Therefore, in the prior art, when the remaining amount of continuous paper on the mounting table becomes small,
Since the drawing speed is high, the continuous paper is drawn in the zigzag folded state, and a jam occurs and the processing operation is stopped. SUMMARY OF THE INVENTION It is an object of the present invention to solve this inconvenience and to provide a continuous sheet processing apparatus capable of always performing a smooth transfer operation regardless of the amount of continuous sheets on the mounting table.

[0004]

In order to achieve this object, a continuous sheet processing apparatus of the present invention is a continuous sheet processing apparatus for transferring continuous sheets folded in a zigzag shape and performing various processing such as cutting. , A loading table for loading the continuous paper folded in a zigzag shape, a transfer mechanism for transferring the continuous paper pulled out from the loading table, and the remaining amount of continuous paper on the loading table below a predetermined amount. A paper amount detection mechanism for detecting that the continuous paper has been conveyed and a control unit of the transfer mechanism for controlling the transfer speed of the continuous paper to a predetermined speed or less by a detection signal of the paper amount detection mechanism.

Then, the paper amount detection mechanism is configured to detect the amount of continuous paper on the mounting table by detecting the displacement amount of the displacement member which is displaced according to the weight of the continuous paper on the mounting table. Further, it is preferable that the displacement amount of the displacement member of the sheet amount detection mechanism, which is displaced according to the weight of the continuous sheet on the mounting table, is the thickness of the continuous sheet or the size in the folded state, in other words, the size of the unit sheet. It is more preferable if the structure is adjustable according to the above.

[0006]

When the paper amount detecting mechanism detects that the remaining amount of the continuous paper on the mounting table is less than or equal to the predetermined amount, the transfer speed of the continuous paper by the transfer mechanism becomes less than or equal to the predetermined speed.
The continuous paper is prevented from being transported in the folded state.

[0007]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Here, FIG. 1 is a schematic side view of the entire sheet processing apparatus, FIG. 2 is a schematic plan view of a mounting table, and FIG. 3 is a schematic sectional view showing a sheet amount detection mechanism provided inside the mounting table. FIG. 4 is a schematic cross-sectional view showing a part of the paper amount detection mechanism in an enlarged manner, and FIG. 5 is a flow chart showing a control operation of the continuous paper transfer speed.

First, the overall structure of the paper processing apparatus will be described. The paper processing apparatus of this embodiment is provided with an automatic paper feeding mechanism capable of automatically supplying continuous paper. As shown in FIG. 1, in the vicinity of the inner lower end of the openable door 2 of the sheet processing apparatus 1, there is provided a storage space for a table 4 for loading continuous sheets 3 which is used when the automatic sheet feeder is not used. An internal guide plate 5 for guiding the continuous paper 3 placed and pulled out in a predetermined state is provided above the storage space. Although not shown, the continuous paper 3 is provided with a marginal portion having transparent marginal holes formed on both sides in the width direction, and a plurality of unit papers are connected through a perforation for cutting. In the state of being folded in a zigzag shape by, it is placed on the placing table 4. The internal guide plate 5 is provided with an end detection sensor 14 for detecting the end of the continuous paper 3.

Following the inner guide plate 5, there is a pair of left and right transfer mechanisms which have tractor pins 6a into which the marginal holes of the continuous paper 3 are fitted and which have the tractor cover 6b and which pull out and transfer the continuous paper 3. A tractor 6 (only one is shown) is provided. The continuous paper 3 has the tractor pins 6 on the inner guide plate 5 sides of the left and right tractors 6, respectively.
A pair of left and right de-pinning sensors (not shown) for detecting detachment from a are provided. The pair of left and right de-pinning sensors detects the continuous paper 3 due to the difference between the left and right paper detection.
Also has a function of detecting an abnormal state in which the tractor 6 is obliquely supplied.

A conveyor belt 7 for transferring the continuous paper 3 is provided following the tractor 6, and a marginal slitter 8 for cutting the marginal portion of the continuous paper 3 is provided at the end of the tractor 6.
Is provided. A leading edge detection sensor (not shown) for detecting the continuous paper 3 is provided on the opposite side of the marginal slitter 8 from the tractor 6. The tip detection sensor may be provided on the tractor 6 side of the marginal slitter 8. Further subsequently, a pair of low-speed upper and lower infeed rollers 9 and a pair of high-speed upper and lower high-speed rollers 10 for applying tension to the continuous paper 3 due to the difference in peripheral speed are provided, and the continuous paper 3 A blade 11 is provided which abuts the perforation for cutting and cuts into unit sheets. Then, the cut unit paper 3
The a is configured to be sequentially stacked on the stacker 12 that can be moved up and down.

Next, the automatic sheet feeder will be described with reference to FIG. A paper upper surface guide (not shown) is provided inside the paper processing device 1 so as to face the paper lower surface guide 13 provided on the front door 2 through an opening (not shown) provided on the front door 2. And the paper lower surface guide 1
A pair of side edge guide members (not shown) that regulate the positions of the side edges of the continuous paper 3 that are provided so as to be movable in the contact and separation directions with respect to each other are provided. Below the paper lower surface guide 13, a movable mounting table 4 having lockable casters is arranged. The side end guide member is moved by a drive motor (not shown) in conjunction with the width of the tractor 6, and the amount of movement is detected by a potentiometer (not shown), and the distance between the side end guide member and the tractor 6 is always constant. Positioned to correspond to width.

Notch portions are provided in the paper lower surface guide 13 and the paper upper surface guide so as to face each other, and upper and lower parts are constituted by a paper feed upper roller 17 which is a driving roller and a paper feed lower roller 18 which is a driven roller so as to face the notch portions. A pair of paper feed rollers is provided. In the vicinity of the paper feed lower roller 18 on the lower surface side of the paper lower surface guide 13, both ends of the continuous paper 3 on the paper lower surface guide 13 are guided by the side edge guide members and it is detected that the continuous paper 3 is supplied in a predetermined state. A sensor (not shown) is provided. Further, a paper feed lower roller 18 on the upper surface side of the paper lower surface guide 13
An edge detection sensor 15 for detecting the edge of the continuous paper 3 is provided in the vicinity.

The paper feed lower roller 18 is provided so as to be movable up and down, and is in the lowered position to move the continuous paper 3 in a free state in the standby state, while the above-mentioned paper sensor (not shown) causes the continuous paper 3 to be in a predetermined state. When it is detected that the continuous paper 3 has been supplied, the paper is raised and is fed in the direction of the tractor 6 with the continuous paper 3 sandwiched between the paper feed upper rollers 17.

The paper feed speed by the pair of paper feed rollers 17 and 18 is set lower than the paper feed speed of the tractor 6. A one-way clutch is provided on the rotation shaft of the paper feed upper roller 17, and when the continuous paper 3 is pulled toward the tractor 6 by a force of a predetermined value or more due to the speed difference, the paper feed upper roller 17 idles, It is configured so that it can correspond to the paper feed speed of the tractor 6. It should be noted that the one-way clutch is not provided and the pressing force against the continuous paper 3 in the sandwiched state of the paper feed upper roller 17 is set weak, and when the continuous paper 3 is pulled in the direction of the tractor 6 with a predetermined force or more, it slips. It may be configured as follows.

As shown in FIG. 1, the paper feed upper roller 17,
Each drive source (only a part is shown) of the tractor 6, the infeed roller 9, and the high speed roller 10 is connected to the control unit 19, and the control unit 19 is connected to the operation unit 20. Then, according to the conditions set by the operation unit 20, the control unit 19 controls the respective drive sources of the paper feed upper roller 17, the tractor 6, the infeed roller 9 and the high speed roller 10 to perform a predetermined paper transfer operation and cutting operation. Is configured to do. The control unit 19 also performs drive control for positioning the tractor 6 and the side end guide member corresponding to the sheet width.

Next, the paper amount detecting mechanism provided on the mounting table 4 will be described with reference to FIGS. As shown in FIGS. 2 and 3, the continuous paper 3 is placed at the center of the upper plate 21 of the mounting table 4.
A mounting plate 22 for mounting the mounting plate 22 is arranged so as to slightly project from the surface of the upper plate 21, and an arm 23 is attached to the lower surface of the mounting plate 22. The mounting plate 22 and the arm 23 constitute a displacement member. are doing. One end of the arm 23 is supported by the support shaft 24, and the other end is loosely fitted to the guide pin 25 and guided by the guide pin 25 to be movable up and down.
It is supported by the upper end of the coil spring 26 wound around the sheet 5 and urged upward, and maintains a horizontal state when the continuous paper 3 is not placed. The lower end of the coil spring 26 has a cross section L.
The guide pin 25 is provided with a long hole 27b which is supported on the inclined plate 27a of the character-shaped adjusting member 27 and is provided in the inclined plate 27a.
Is inserted.

As shown in FIGS. 3 and 4, the adjusting member 27
Are screws 29, 29 on the vertical portion of the support plate 28 having an L-shaped cross section.
Has been fixed by. In the horizontal portion of the support plate 28, pins 31a and 31b that move in a guide hole 30 that is transparently provided in the upper plate 21 of the mounting table 4 penetrate, and nuts 32a and 32b are attached to male screw portions provided at the tips thereof. It is fixed by screwing. The upper ends of the pins 31a and 31b are fixed to a volume plate 33 that slides on the upper plate 21,
Accordingly, the pin 31 of the volume plate 33 is
The support plate 28 and the adjusting member 27 are also configured to move integrally with the slide guided by a and 31b.

As shown in FIG. 2, the volume plate 3
3 is provided with an instruction mark 34, and a scale seal 3 is provided along the moving path of the volume plate 33.
5 is attached to the upper plate 21. This scale sticker 3
The scales 0 to 6 are displayed at 5, and in the state shown by the solid lines in FIGS. 2 and 4, the indicator mark 34 of the volume plate 33 corresponds to the scale 6, and the coil spring is moved by the movement of the inclined plate 27a. The urging force of 26 is set to the strongest. When the indication mark 34 of the volume plate 33 is made to correspond to the scale 0 (state shown by phantom lines in FIGS. 2 and 4), the biasing force of the coil spring 26 is set to the weakest by the movement of the inclined plate 27a.

As shown in FIG. 3, a light shield plate 36 is provided near the guide pin 25 of the arm 23.
Corresponding to, the optical sensor 37 is provided on the lower surface side of the upper plate 21. Therefore, when the arm 23 is in the horizontal state, the optical sensor 37 detects the light shielding plate 36, but the arm 23 uses the support shaft 24 as a fulcrum.
The optical sensor 37 does not detect the light shielding plate 36 when it is oscillated and displaced in the counterclockwise direction and the displacement amount exceeds a predetermined amount. That is, the detection signal from the optical sensor 37 is generated by detecting the swinging displacement position of the arm 23 when the weight of the continuous paper 3 on the mounting plate 22 becomes less than a predetermined value, and is shown in FIG. It is sent to the control unit 19 and controls the drive motors of the tractor 6 and the drive roller 17 so that the transfer speed is not more than a predetermined value, specifically, 100 per minute.
It is designed to drop about a foot (about 30.5 m).

Next, the operation of the continuous paper processing apparatus 1 described above will be described. First, according to the thickness of the continuous paper 3 to be processed and the size of the unit paper, the volume plate 33
Slide and make the instruction mark 34 correspond to the optimum scale of the scale seal 35. In the present embodiment, the thickness of the continuous paper 3 to be processed and the size of the unit paper are the maximum, and the scale 6 is set as shown in the states shown by the solid lines in FIGS. Next, when the continuous sheet 3 folded in a zigzag shape is placed on the placing plate 22 of the placing table 4, the placing plate 22 is lowered by the weight of the continuous sheet 3, and the arm 23 moves the supporting shaft in FIG. The optical sensor 37 swings counterclockwise around the fulcrum 24, and the light sensor 37 does not detect the light shielding plate 36.

Subsequently, as shown in FIG. 1, the continuous paper 3 placed in a predetermined state is pulled out, and the paper lower surface guide 13
And a paper sheet upper surface guide (not shown), and the paper is fed so as to abut on the paper feed upper roller 17. At this time, the side end guide member (not shown) is set in position in conjunction with the width of the tractor 6 set according to the continuous paper 3 to be processed, and its interval has been adjusted to ensure a reliable guide operation. Is to do. When the paper sensor (not shown) detects that the continuous paper 3 has been supplied in a predetermined state, the paper feed lower roller 18 rises to sandwich the continuous paper 3, and then the paper feed upper roller 17 is rotationally driven. And continuous paper 3
To the tractor 6 direction.

When the depinning sensor (not shown) detects the continuous paper 3, the control unit 19 starts the tractor 6 so as to rotate and drive the tractor 6 at a speed higher than the feed speed by the paper feed rollers 17 and 18. On the other hand, the depinning sensor (not shown)
If the continuous paper 3 is not detected normally, for example, if the continuous paper 3 is detected to be fed obliquely, the control unit 19 determines that there is an error, and stops the rotational driving of the paper feed upper roller 17 to continue. The feeding operation of the paper 3 is stopped. Since the moving speed of the tractor pin 6a is faster than the moving speed of the continuous paper 3 by the pair of paper feed rollers 17 and 18, one of the tractor pins 6a surely fits into the marginal hole, and the continuous paper 3 becomes the tractor 6. Be transferred by. When the leading edge detection sensor (not shown) detects the leading edge of the continuous paper 3 whose marginal section has been cut by the marginal slitter 8, the driving of the tractor 6 and the paper feed roller 17 is stopped, and the continuous paper 3 with respect to the tractor 6 is stopped. The set is complete.

Here, the paper feed lower roller 18 is lowered to be in a standby state, the interval between the side end guide members is slightly widened, and the continuous paper 3 can be passed in a free state. In this state, the sheet processing apparatus 1 is started, the continuous sheet 3 is transferred by the tractor 6, the marginal section is cut by the marginal slitter 8, and the infeed roller 9 and the high speed roller 1 are cut.
At 0, tension is applied to the continuous paper 3, and the blade 11 cuts it into unit papers, which are sequentially stacked on the stacker 12.

In this way, as the continuous paper 3 is processed, and the continuous paper 3 on the mounting table 4 decreases,
Since the weight of the mounting plate 22 is also lightened,
The arm 23 is returned in the horizontal direction by the urging force of the coil spring 26. Next, the control of the sheet transfer speed depending on the remaining amount of the continuous paper 3 will be described with reference to FIG. Until the remaining amount of the continuous paper 3 becomes less than or equal to a predetermined amount, the transfer is performed while maintaining the processing speed set by the operation unit 20 (steps 101 and 102), but the remaining amount of the continuous paper 3 becomes less than or equal to the predetermined amount. Then, when the light sensor 37 detects the light shielding plate 36 (step 101), a detection signal is sent to the control unit 19 to decelerate the drive sources of the tractor 6 and the paper feed roller 17 (step 103), for example, 1 10 per minute
The transfer speed becomes 0 feet (about 30.5 m), and the paper processing speed is also reduced to correspond to this transfer speed. When the end detection sensor 15 detects the end of the continuous paper 3 (step 104), this detection signal is sent to the control unit 19
And the drive of the sheet processing apparatus 1 is stopped after a predetermined time.

The present invention is not limited to the above-described embodiment, and for example, the storage space for the mounting table 4 inside the sheet processing apparatus 1 does not necessarily have to be provided. Also,
Instead of providing the paper lower surface guide 13 on the front door 2, the inner guide plate 5
In this case, the continuous paper 3 on the mounting table 4 is inserted from the opening provided in the front door 2, and the paper side end guide member provided corresponding to the opening is used. The sheet is guided and placed on the sheet lower surface guide 13, or the placing table 4 is arranged inside the sheet processing apparatus 1 and the continuous sheet 3 on the placing table 4 is pulled up so that the sheet lower surface guide 13 is placed inside the sheet processing apparatus 1. The sheet side end guide member provided on the sheet may be guided and placed. Further, the sheet processing apparatus 1 of the present invention includes the tractor 6
Is sufficient, marginal slitter 8, infeed roller 9, high speed roller 10, blade 11
An apparatus provided with another mechanism, for example, a printer mechanism may be used instead of the cutting mechanism consisting of.

Further, the paper amount detecting mechanism for detecting the remaining amount of the continuous paper 3 on the mounting table 4 detects the displacement position of the arm 23 which is connected to the mounting plate 22 and swingably supported by the optical sensor 37. Alternatively, a pressure sensor may be provided directly on the mounting plate 22, or a mechanism for detecting the highest height position of the continuous paper 3 remaining on the mounting table 4 by various sensors such as an optical sensor may be used. Further, the mechanism for adjusting the urging force of the coil spring 26 employed as the mechanism for adjusting the displacement amount of the displacement member according to the weight of the continuous paper is not limited to the one using the inclined plate 27a, and the guide pin 25 is rotated, for example. As a result, various modifications such as a mechanism for adjusting the urging force of the coil spring 26 by moving the nut member, which is supported at the tip end thereof non-rotatably and capable of moving up and down, are possible.

[0027]

As is apparent from the above description,
According to the present invention, when the remaining amount of continuous paper on the mounting table becomes less than or equal to a predetermined value, the transfer speed is slowed down, so that the continuous paper is not transferred in the folded state, and jams do not occur. Continuous paper on the table is always smooth from start to finish,
It is possible to reliably transport the sheet and reliably perform the sheet processing operation.

[Brief description of drawings]

FIG. 1 is a schematic side view of the entire sheet processing apparatus.

FIG. 2 is a schematic plan view of a mounting table.

FIG. 3 is a schematic cross-sectional view showing a sheet amount detection mechanism provided inside a mounting table.

FIG. 4 is a schematic cross-sectional view showing an enlarged part of the paper amount detection mechanism.

FIG. 5 is a flowchart showing a transfer speed control operation.

[Explanation of symbols]

 1 Paper Processing Device 2 Front Door 3 Continuous Paper 4 Loading Table 5 Internal Guide Plate 6 Tractor 6a Tractor Pin 13 Paper Lower Surface Guide 19 Control Part 22 Loading Plate 23 Arm 25 Guide Pin 26 Coil Spring 27a Tilt Plate 33 Volume Plate 35 Scale Seal 36 Light shield 37 Optical sensor

Claims (3)

[Claims] 1. A continuous sheet processing apparatus for transferring continuous sheets folded in a zigzag shape to perform various processing such as cutting, and a placing table for placing the continuous sheets folded in a zigzag shape. A transfer mechanism for transferring continuous paper pulled out from the table, a paper amount detection mechanism for detecting that the remaining amount of continuous paper on the table has fallen below a predetermined amount, and a detection signal of this paper amount detection mechanism And a control unit of a transfer mechanism that controls the transfer speed of the continuous paper to a predetermined speed or less. 2. The paper amount detection mechanism is configured to detect the amount of continuous paper on the mounting table by detecting the displacement amount of a displacement member that is displaced according to the weight of continuous paper on the mounting table. The continuous sheet processing device according to claim 1, wherein 3. The continuous sheet processing device according to claim 2, wherein the displacement amount of the displacement member of the sheet amount detecting mechanism, which is displaced according to the weight of the continuous sheet on the mounting table, is adjustable. .