JP2008105156A - Slitter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slitter which can cut a medium sheet with an arbitrarily cutting dimension, and is applicable to a different dimension of the medium sheet. <P>SOLUTION: The slitter is formed of: a plurality of slitter units which are supported on a device fixing section so as to be movable in a width direction of the medium sheet independently from each other, and have rotary cutters built therein, respectively; a slitter unit driving section for transporting the slitter units in the width direction independently from each other; and a control device for issuing an instruction of a widthwise stopping location of the medium sheet, to the unit driving section. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cutting apparatus that cuts a printed material into a predetermined size, and more particularly to a slitter that cuts a printed sheet into a predetermined size at a cutting mark position.

As is well known, a large number of printed sheets (media sheets) after printing are usually stacked so that the register marks on each sheet coincide with each other, and are usually cut to a predetermined size by a guillotine cutting machine. is there.
By the way, with recent progress in demand for printing sheets, printing and cutting of one to several large sheets are increasing. However, such large sheets have a large size. Since it takes too much time and money to process with a cutter, a printed sheet is placed on a large table and manually cut to a predetermined size using a cutter knife or the like.

  However, the manual cutting operation not only requires skill, but also has to process dozens of large-sized sheets of the same size. Work was sometimes required.

Conventionally, there has been proposed a slitter that uses a plurality of rotary cutters to cut a printed sheet after printing into a predetermined size.
Japanese Patent Laid-Open No. 10-76495 JP 2002-346984 A JP 2004-237377 A

  Any of these slitters has a problem that the position of the rotary cutter is at a predetermined position, and therefore cannot be applied to a printing sheet having different cutting dimensions, and the slitter must be designed for each cutting dimension.

  An object of the present invention is to obtain a slitter that has a free cutting size and can easily correspond to the size of the media sheet in view of the problems in cutting of the conventional media sheet as described above.

  In order to achieve this object, the present invention provides a feed roller attached to a table on which a media sheet is positioned, feeds the media sheet in the length direction, and feeds a plurality of rotary cutters adjacent in the width direction of the media sheet to the table. In a slitter that is provided on one side in the direction and cuts the media sheet in the length direction by these rotary cutters, it is supported by the apparatus fixing portion so that it can move independently in the width direction of the media sheet, and each of the rotary cutters is incorporated. There are provided a plurality of slitter units, a slitter unit driving section that sends these slitter units independently in the width direction, and a control device that instructs the slitter unit driving section in the width direction stop position of the media sheet. A slitter is proposed.

  According to the present invention, since the slitter unit is adjusted to the cutting mark corresponding position by the signal from the control device, an arbitrary cutting dimension can be obtained.

In the description of the preferred embodiments of the invention described below,
1) Each slitter unit is supported by a movable feed screw in the width direction so as to be movable in the width direction, and the slitter unit drive unit is a unit feed motor and the power branched from the unit feed motor to each movable feed screw. A slitter having a plurality of electromagnetic clutches incorporated in the transmission system,
2)
Each slitter unit has a first guide plate and a second guide plate fixed to each unit frame, and the cut pieces of the media sheet are directed in different directions up and down by the first guide plate and the second guide plate. Slitting machine,
3) The slitter is provided on a table provided with a releasable feed roller on a table provided with a transparent scale on which a cutting mark position in the width direction of the media sheet can be visually recognized and movable in the width direction of the media sheet. At least two mark position detectors positioned at corresponding positions corresponding to the cutting marks in the same width direction, and temporarily clamp the media sheet on the media sheet take-in side of the table when the feed roller is released. A slitter provided with a media tilting table for adjusting the tilt of the media sheet will be described.

The details of the slitter according to the embodiment of the present invention will be described below with reference to the drawings.
FIG. 2 is an overall cross-sectional view of the slitter of the present invention, and the slitter includes a table T on which a print sheet, that is, a media sheet S is supplied in the length direction (left-right direction in FIG. 2).

In the upper part of the table T, a transparent scale S1 through which the positions of registration marks M1, M2 (cutting marks, shown in FIG. 4) printed on the surface of the media sheet S can be seen through extends in the width direction of the media sheet S. The operator can know the positions of the registration marks M1, M2 of the media sheet S set from the scale of the same transparent scale S1 corresponding to the registration marks M1, M2.
The table T is provided with a releasable feed roller F1 positioned immediately after the transparent scale S1, and the lower roller 1a of the feed roller F1 is driven at a constant speed by the sheet feed motor 1.

  The upper roller 1b of the feed roller F1 can be separated and released from the lower roller 1a by operation of a release lever 2 which is manually operated by an operator. That is, when the release lever 2 that can tilt about the fulcrum pin 3 (FIG. 2) of the device fixing portion is in the open position shown by the solid line, the media sheet S is sandwiched between the lower roller 1a and the upper roller 1b. When the manual operation is performed at the release position indicated by the two-dot chain line, the upper roller 1b is separated from the lower roller 1a, and the restriction of the media sheet S can be released.

The first sheet sensor 4 adjacent to the feed roller F1 senses the leading edge of the media sheet S and notifies whether there is an abnormality in sheet feeding.
A camera scale S2 (standard scale) placed in parallel with the transparent scale S1 is positioned on the table T, and a mark position detector showing the case of the monitoring cameras P1 and P2 using the scale of the camera scale S2. Can be positioned at the position of the corresponding register mark M1, M2. That is, the two monitoring cameras P1 and P2 are fixed to the lower part of the camera table 21 that can move along the guide rail 5 extending in a direction perpendicular to the paper surface of FIG. Towards.

Therefore, the operator grasps the knob 21a of the camera base 21, and the operator indicates the indication line of the camera base 21 on the corresponding scale of the camera scale S2 corresponding to the position of the registration marks M1 and M2 read on the scale of the transparent scale S1 (FIG. 3). , The corresponding registration mark M1, M2 can be aimed within the field of view of each of the monitoring cameras P1, P2. The length direction deviation information and the width direction deviation information of the registration marks M1, M2 from the monitoring cameras P1, P2 are stored in the memory of the control device cpu in FIG. The tilt command signal is calculated, and a tilt motor 31 (shown in FIG. 14) described later is driven.

  In the illustrated embodiment, the camera base 21 is manually operated. However, the camera base 21 is driven by a stepping motor, and the position information of the register marks M1, M2 read by the transparent scale S1 is input key 98 (FIG. 14). The camera base 21 can be moved by a stepping motor by a value corresponding to the input signal, and the monitoring cameras P1, P2 can be aimed at the positions of the corresponding register marks M1, M2.

A media tilting base 30 for adjusting the tilt of the media sheet S by temporarily clamping the media sheet S to be handled is disposed at the media sheet receiving end of the table T.
The media tilting table 30 shown in detail in FIGS. 5 and 6 can tilt in the horizontal plane about the central axis 32 at the center in the width direction of the media sheet S, and the upper surface thereof is lifted by push-up springs 33 at both ends. The clamp plate 34 is urged to be provided. That is, the clamp plate 34 is forcibly lowered by the vertical movement member 36 and the pusher 37 by the rotation of the manually operable clamp lever 35 shown in FIG. Press and clamp on the surface.

Further, a tilt motor 31 (FIG. 6) that can be rotated forward and backward is provided at one end of the media tilt base 30, and a pair of nuts on a nut fixing plate 41 that is reciprocated by a feed screw 39 of the tilt motor 31. The main moving plates 41a and 42b are erected. The bearing 43 positioned between the main moving plates 41a and 42b is rotatably supported by a shaft 45 of a holding member 44 that is fixed to the end face of the media tilting base 30 in a cantilever state.
Therefore, when the tilting motor 31 is rotated by the number of rotations corresponding to the length direction deviation information of the registration marks M1 and M2 according to the command from the control device cpu, the media tilting base 30 is moved to the central axis 32 while the media sheet S is clamped. And the inclination of the image of the media sheet S with respect to the table T is corrected.

Returning to FIG. 2, the top and bottom cutters C positioned substantially immediately below the guide rails 5 are arranged on the table T, and the registration marks M <b> 1 are aligned by the top and bottom cutters C extending in the width direction of the table T. , M2 is cut by the same ground cutter C. The top and bottom cutter C is operated at a timing corresponding to the distance between the registration marks M1 and M2 in the length direction of the media sheet S inputted in advance from the input key 7, and cuts the media sheet S at the positions of the trailing registration marks M1 and M2. To do.

  A secondary feed roller F2 for picking up the media sheet S cut from the position of the register marks M1 and M2 is disposed on the table T immediately after the top and bottom cutter C, and the surface is flattened by the rotational feed movement of these secondary feed rollers F2. While maintaining the state, the media sheet S is fed to the subsequent slitter units U1 and U2.

As shown in FIG. 11, the slitter units U1 and U2 provided in a pair adjacent to each other in the width direction of the media sheet S include a unit frame 53 that can move in the width direction along the moving feed screws 52A and 52B. The unit frame 53 includes a rotary cutter 54 that is driven to rotate by a slide and rotary shaft 71 and a rotary blade 58 that is supported by a support shaft 57 and pressed against the surface of the rotary cutter 54 by a pressing spring 56. .
That is, as shown in FIG. 8, the feed roller 73 is connected to the slide / rotary shaft 71 via a one-way clutch 72 that transmits only the rotational motion from the slide / rotary shaft 71. The rotary cutter 54 is fixed to the side surface of the feed roller 73 so as to be movable in the length direction.

The unit frame 53 of each of the slitter units U1 and U2 has a first guide plate 68 and a second guide plate 69 for guiding the image portion and the blank portion of the media sheet S after cutting, respectively. It is fixed in a state where it is located on both sides.
The first guide plate 68 shown enlarged in FIG. 9 is in a state of extending in a substantially horizontal direction directly above the rotary cutter 54, and its front end 68a is bent upward at an angle, and its rear end 68b is bent downward. Therefore, the image portion of the media sheet S fed by the secondary feed roller F2 is directed in the direction of the arrow along the lower surface of the first guide plate 68 so as to be separated from the rotary blade 58, and is discharged from the slitter units U1 and U2. It will be.

Further, the second guide plate 69 shown in an enlarged manner in FIG. 10 is in a state of extending in a substantially horizontal direction directly below the rotary blade 58, and its tip portion 69a is bent downward at an angle, and thereafter The end portion 69b is bent upward. Therefore, the left and right margins of the media sheet S fed by the secondary feed roller F2 are directed in the direction of the arrow along the lower surface of the second guide plate 69 so as to be separated from the rotary cutter 54.
Therefore, because of the presence of the first guide plate 68 and the second guide plate 69, the left and right margins and the image portion of the cut media sheet S are separated vertically so as to be separated from each other, so that the slitter does not interfere with each other. -It will be discharged | emitted from unit U1, U2.

FIGS. 11 to 13 show a drive unit that drives and controls a pair of slitter units U1 and U2. The unit frame 53 of both slitter units U1 and U2 is driven by a drive gear 78 of a unit feed motor 63. FIG. That is, as shown in FIG. 11, feed nuts 74 screwed to the moving feed screws 52A and 52B are fixed to the unit frames 53 of both slitter units U1 and U2, respectively. A first electromagnetic clutch 75 and a second electromagnetic clutch 77 are provided at the shaft ends, respectively, and only when the first electromagnetic clutch 75 and / or the second electromagnetic clutch 77 are excited, the rotational movement of the unit feed motor 63 is a moving feed screw. 52A and 52B.

As shown in FIG. 13, the drive gear 78 of the unit feed motor 63 is engaged with two relay gears 81 and 82, respectively, and these relay gears 81 and 82 are driven by the first electromagnetic clutch 75 and the second electromagnetic clutch 77. Since the gears 83 and 84 are engaged with each other, the rotational movement from the unit feed motor 63 is transmitted to the corresponding moving feed screws 52A and 52B when the first electromagnetic clutch 75 and / or the second electromagnetic clutch 77 is excited.

Next, the operation of the slitter described above will be described with respect to the block diagram of the control unit shown in FIG.
Single mode When the operator selects the single mode, the upper roller 1b of the feed roller F1 is lifted by the release lever 2, and the media sheet S is placed under the clamp plate 34 of the media tilting base 30 and the feed roller F1. It is introduced onto the table T through a space formed between the upper roller 1b and the lower roller 1b. In this case, the operator inputs a known distance between the registration marks M1 and M2 from the input key 98, and the distance between the registration marks M1 and M2 is stored in the memory of the control device cpu.

When the media sheet S is introduced, as shown in FIG. 4, the operator aligns the register marks M1 and M2 printed on the image surface of the media sheet S with the scale position of the transparent scale S1, and manually operates the release lever 2. Then, the upper roller 1b is lowered, the knob 21a is grasped, the camera base 21 is moved in the width direction, and the indication line of the camera base 21 is adjusted to the corresponding scale of the camera scale S2 (step S1).

Next, when a start button (not shown) is pressed, the sheet feeding motor 1 is driven by a predetermined number of rotations, and the registration marks M1, M2 of the media sheet S are positioned in the field of view of the corresponding monitoring cameras P1, P2. Is done. In this case, the presence of the media sheet S is confirmed by the first sheet sensor 4, and if there is no media sheet S, an alarm signal is transmitted (step S2).
Thereafter, the recognition signals of the registration marks M1 and M2 from the first monitoring camera P1 and the second monitoring camera P2 are input to the control device cpu. If the recognition signals are abnormal values or are not recognized, An alarm signal is transmitted to notify that the media sheet S is set abnormally or that the positioning of the first monitoring camera P1 and / or the second monitoring camera P2 is abnormal (step S3).

If there is a positional deviation in the length direction of the registration marks M1 and M2 among the recognition signals of the registration marks M1 and M2 from the first monitoring camera P1 and the second monitoring camera P2, the control device cpu determines that “there is an inclination”. To do. The display lamp is turned on and a reading completion is transmitted (step S4). When the upper roller 1b of the feed roller F1 is lifted by the operation of the release lever 2 and the media sheet S is temporarily clamped on the media tilting base 30, the media sheet S is released from the feed roller F1 at the same time (step S5).

After manual operation of the clamp lever 35 and the release lever 2, when an “tilt adjustment” start button (not shown) is pressed by the operator and “tilt adjustment” is instructed, the tilt motor 31 is driven and the media The tilt table 30 is tilted in the horizontal plane about the central axis 32 (step S6).
After this step S6, the process returns to step S2, and the tilting motion of the media tilting table 30 is continued until there are no positional deviations in the length direction of the register marks M1, M2 from the first monitoring camera P1 and the second monitoring camera P2. However, when the registration marks M1 and M2 have no positional deviation in the length direction, this is notified to the operator by a notification means such as a buzzer (step S7).

  Thereafter, the release lever 2 is returned by the operator, the media sheet S is sandwiched between the feed rollers F1 with the inclination of the image corrected, and the clamp plate 34 is raised by manual operation of the crank lever 35 of the media tilting base 30. Thus, the clamped state of the media sheet S with respect to the media tilting table 30 is canceled (step S8).

After these manual operations, when the fact that the preparation state is completed is input from the input key 98, each of the position information of the register marks M1 and M2 input by the operator and the position information in the width direction detected by the monitoring cameras P1 and P2 is used. The positions of the slitter units U1, U2 are determined, and the first electromagnetic clutch 75 and the second electromagnetic clutch 77 are excited based on this command signal.
Thereafter, the unit feed motor 63 is driven, and the slitter units U1 and U2 start moving in the width direction of the media sheet S via the moving feed screws 52A and 52B. When the position of the rotary cutter 54 of each slitter unit U1, U2 reaches a position strictly corresponding to the corresponding register mark M1, M2, the first electromagnetic clutch 75 and the second electromagnetic clutch 77 are separated according to a command from the controller cpu. (Step S9).

After the slitter units U1 and U2 are moved and stopped in the width direction, the feed roller F1 is driven by the sheet feed motor 1 for a predetermined time, but the registration marks M1 and M2 coincide with the top and bottom cutters C in the feed roller F1. Is stopped. Then, after the media sheet S is stopped, the cutter motor 69 is operated, and the top and bottom cutter C cuts the media sheet S from the position of the registration marks M1 and M2, and the leading ends of the registration marks M1 and M2 are cut off (step S10). .

Next, upon detection of the media sheet S by the second sheet sensor 99 at the position of the secondary feed roller F2, the feed roller F1 and the secondary feed roller F2 are rotationally driven by the sheet feed motor 1 and the feed motor 65, and the controller cpu The rotary blade motor 67 is rotated in response to the command, and blank portions on both sides in the width direction of the media sheet S are cut off (step S11).
In this case, due to the presence of the first guide plate 68 and the second guide plate 69, the left and right margins and the image portion of the cut media sheet S are separated from each other vertically so that they do not interfere with each other. It is discharged from the slitter units U1, U2.

Subsequently, when the media sheet S is fed by the distance in the length direction of the media sheet S of the registration marks M1 and M2 inputted in advance by the rotational drive of the feed roller F1 and the secondary feed roller F2, the feed rollers F1 and 2 The next feed roller F2 is stopped. After the feed roller F1 and the secondary feed roller F2 are stopped, the cutter motor 69 is operated again, and the media sheet S is cut from the position of the trailing edge registration marks M1 and M2 by the top and bottom cutter C, and the media sheet S has a predetermined size. Cutting is performed (step S12).
Finally, the feed roller F1 and the secondary feed roller F2 are rotated again by the sheet feed motor 1 and the feed motor 65, and the remaining part of the media sheet S is discharged outside the apparatus (step S13).

Repeat mode When processing a plurality of media sheets S of the same specification, when the repeat mode is selected by the operator, the user is prompted to input the required number of sheets. The operation up to S13 is repeated, and the counter for storing the required number is subtracted at the end of step S13, and the width direction distance and the length direction distance of the register marks M1, M2 manually input after the processing of the last media sheet S are determined. Information will be cleared.

Series Mode In the case of processing of the media sheet S in which the same image is continuously printed in the length direction on one media sheet S, the series mode is selected by the operator. In this series mode, the input of the set number indicating the continuous number is prompted, the counter for storing the required number at the end of step S12 is subtracted by the input of the set number, and the operations from step S10 to step S12 are repeated. Of course, as in the repeat mode, information on the distance in the width direction and the distance in the length direction of the register marks M1 and M2 manually input after the processing of the last media sheet S is cleared.

    In the above description of the embodiment of the present invention, the example in which two surveillance cameras and two slitter units corresponding to these surveillance cameras are provided is illustrated. However, when the media sheet is cut into a plurality in the width direction. The number of surveillance cameras and slitter units corresponding to the number of cuts may be arranged. Of course, if each slitter unit is provided with the first guide plate 68 and the second guide plate 69, it is possible to avoid the interference between the image portions of the cut media sheet and the blank portion, and to achieve a good cutting finish. Can be obtained.

  In the above-described embodiment of the present invention, the example using the media tilting base and the monitoring camera has been described. However, the present invention is not limited to this example, and the media tilting base and the monitoring camera are eliminated and controlled. Each slitter unit may be moved by a manual command input from the apparatus.

It is a conceptual diagram of the slitter by this invention. It is a whole sectional view of the slitter. It is a principal part enlarged plan view of the slitter. It is a top view which shows the relationship between the transparent scale of the slitter, and a camera scale. It is a principal part end view of the media tilting stand of the slitter. It is an enlarged plan view of the drive part of the same media tilting table. It is a perspective view of the drive part of the same media tilting table. It is an expanded sectional view in the width direction inside the slitter unit. It is sectional drawing which follows the 9-9 line | wire of FIG. 8 of the slitter unit. It is sectional drawing which follows the 10-10 line | wire of FIG. 8 of the slitter unit. It is a whole top view of the slitter unit drive part. It is a principal part enlarged plan view of the slitter unit drive part. It is sectional drawing which follows the 13-13 line | wire of FIG. 12 of the slitter unit drive part. It is a block diagram of the slitter control part by this invention.

Explanation of symbols

C Top and bottom cutter F1 Feed roller M1, M2 Registration mark S Media sheet S1 Transparent scale S2 Camera scale T Table U1, U2 Slitter unit 30 Media tilt base 52A, 52B Moving feed screw 53 Unit frame 54 Rotating cutter 63 Unit feed motor 68 First 1 guide plate 69 second guide plate 71 slide / rotating shaft 75 first electromagnetic clutch 77 second electromagnetic clutch

Claims (4)

  A feed roller is attached to the table on which the media sheet is located, the media sheet is fed in the length direction, and a plurality of rotary cutters adjacent in the width direction of the media sheet are provided on one side of the feed direction of the table. In the slitter for cutting the media sheet in the length direction, a plurality of slitter units that are supported by the apparatus fixing portion and include the rotary cutter so as to be able to move independently in the width direction of the media sheet, and these slitter units A slitter unit drive unit for feeding units independently in the width direction, and a control device for instructing the stop direction of the media sheet in the width direction to the slitter unit drive unit.   Each slitter unit is supported by a movable feed screw in the width direction so as to be movable in the width direction, and the slitter unit drive unit is a single unit feed motor and a power transmission system branched from the unit feed motor to each movable feed screw. The slitter according to claim 1, wherein the slitter has a plurality of electromagnetic clutches incorporated in the slitter.   Each slitter unit has a first guide plate and a second guide plate fixed to each unit frame, and the cut pieces of the media sheet are directed in different directions up and down by the first guide plate and the second guide plate. The slitter as described in any one of Claim 1 and Claim 2 characterized by the above-mentioned. The slitter is provided on a table provided with a releasable feed roller, and provided with a transparent scale that can visually recognize a cutting mark position in the width direction of the media sheet, and is provided on the table so as to be movable in the width direction of the media sheet. At least two mark position detectors positioned at the cut mark corresponding position in the same width direction are arranged, and the media sheet is temporarily clamped on the media sheet taking side of the table when the feed roller is released. The slitter according to claim 1, further comprising a media tilting table for adjusting the tilt of the media.

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