JP3349591B2 - Reading document support device in the reading section - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reading document supporting device in a reading section for positioning and supporting a reading document on a photographing table and photographing the reading document.

[0002]

2. Description of the Related Art For example, when an original plate for printing is produced by a plate making machine, read originals stacked on an original placing unit are taken out one by one via a transport system to constitute a photographing unit (reading unit). After the image information carried on the read original is read, it is discharged to a document discharge section.

In this case, in the photographing section, an endless conveying belt and a suction box (suction mechanism) connected to a vacuum generator for conveying the read original to the photographing table.
Are used. By transporting the read original to the photographing position while holding the lower surface of the read original by the transport belt, the position of the read original at the photographing position is prevented from being shifted, and the entire photographing surface (upper surface) on which an image is carried Can be opened to the photographing unit.

[0004] At this time, in order to position the read document sucked and held by the transport belt at the photographing position, usually, a retractable registration pin that engages with the leading end of the read document in the transport direction is used.

[0005]

Incidentally, in this type of photographing unit, read originals having various dimensions are often used, and therefore, the positions of the registration pins are adjusted in accordance with the dimensions of each read original. Work has been done. However, since the position of the suction box is set in advance corresponding to the photographing position, if the position of the registration pin is changed according to the size of the read document, the suction position of the read document by the suction box differs. Would. As a result, there is a possibility that the positioning operation of the read original may not be performed reliably. For example, a problem has been pointed out that buckling occurs in the read original and it becomes difficult to perform a high-precision photographing operation. In addition, it is conceivable to control the suction timing by the suction box according to the size of the document to be read.
There is a problem that this type of control becomes complicated.

An object of the present invention is to solve this kind of problem. It is possible to accurately and smoothly position and hold reading originals of various sizes at desired positions in a photographing position, and to perform complicated control. It is an object of the present invention to provide a reading document support device in a reading unit that can eliminate the need for the document.

[0007]

In order to achieve the above-mentioned object, the present invention provides a conveying belt provided on a photographing table.
In a reading section for reading an image or the like carried on the read original while holding the original to be conveyed between the pressure glass plate and the conveying belt , the read original is photographed at a predetermined time.
A document supporting device reading for positioned and supported in position, causes pre Symbol sucking and holding the read document to the conveying belt, the position adjustable suction mechanism depending on the size of the original preparative said read, preparative said read the document has a positioning mechanism for positioning in correspondence with the predetermined photographing position, the
The position setting mechanism is engaged with the leading end of the read original in the transport direction.
A flexible first resist pin, and the first resist pin
First drive means for moving back and forth to an engagement position with a document to be read
And one side crossing the reading original in the transport direction.
A second resist pin that is freely engageable with the second resist pin ;
For moving the blade in a direction intersecting the transport direction.
And a driving means .

[0008]

[Action] In the document supporting device reading the reading section according to the present invention, the suction mechanism, the read original is conveyed belt
It is conveyed while being attracted to and held on, configure the position setting mechanism
Once positioned at a predetermined photographing position by the first and second resist pin, the read original shooting Kagedai rises and is held between the conveyor belt and the pressure glass plate. In this state, an image or the like carried on the read document is read. When a reading document having a different size is used, the position of the suction mechanism is adjusted in accordance with the size of the reading document. Is positioned. Accordingly, it is not necessary to perform complicated control, and it is possible to accurately and smoothly position and support the read originals having various sizes with respect to the photographing position .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A reading document supporting device in a reading section according to the present invention will be described in detail below with reference to the accompanying drawings, taking an embodiment in relation to a document conveying device for carrying out the same.

In FIGS. 1 and 2, reference numeral 10
Indicates a plate making machine. This plate-making machine 10 is actually configured integrally with an image reading device and an image recording device, and a document transport device 14 is detachably mounted on a base 12 constituting the plate-making machine 10. You.

The document feeder 14 has a document placing mechanism 18 for stacking and storing a plurality of read documents (sheets) 16.
And the read original 1 stacked on the original placing mechanism 18.
A separation and transport mechanism 20 for taking out the originals 6 one by one;
A photographing unit (reading unit) 22 for recording the image information carried on the plate material on the plate material and performing plate making;
And a document discharge unit 24 for reversing and accumulating the document. As shown in FIG. 2, the read original 16 includes a pasted original having cut-out portions for characters and pictures and pasted portions 16b for photographs and the like at predetermined positions on a mount 16a such as paper and film.

The original placing mechanism 18 is provided with a plurality of originals 1 to be read.
A mounting table 26 which can be raised and lowered in a state where the sheets 6 are stacked, and a slide guide 28 which is slidable in the direction of the arrow Y corresponding to the size (for example, A5 to B3 size) of the read document 16.
And a guide member 30 for aligning the rear end of the read original 16 in the take-out direction (see FIG. 1).

As shown in FIG. 2, the separation transport mechanism 20
A take-out roller 32 for taking out the uppermost read document 16 on the mounting table 26 from the stacking position by a predetermined distance in the arrow X direction;
A feed roller 34 for feeding the read document 16 further in the direction of arrow X;
And the uppermost read original 1 sent out
A return roller 36 for returning another read original 16 sent out integrally with the original 6 to the stacking position;
And a transport roller pair 38 for transporting the sheet 6 to the photographing unit 22 side.

As shown in FIGS. 3 to 5, the photographing section 22 incorporates the reading document support device 40 according to the present embodiment. The support device 40 includes a plurality of endless transport belts 46 for transporting the read document 16 on a vertically movable imaging table 44 via a lifting unit 42, and the transport belt 46.
And causes the read original 16 to be suction-held.
A suction mechanism 48 capable of adjusting the position in the direction of the arrow X according to the size of the read document 16 and a position setting mechanism 50 for positioning the read document 16 corresponding to a predetermined photographing position on the photographing table 44 are provided. .

As shown in FIG. 5, the lifting / lowering means 42 has a lifting / lowering motor 52 to which first and second rotating shafts 58 and 60 are connected via a speed reducer 54 and a chain sprocket 56. You. A first pinion 62a, 62b and a second pinion 64a, 64b are fixed to the first and second rotating shafts 58, 60, respectively, at a predetermined interval. The first pinions 62a, 62b and the second pinions 64a, 64b mesh with the first rack members 66a, 66b and the second rack members 68a, 68b fixed vertically below the photographing table 44, and
The imaging table 44 is guided vertically by a plurality of guide rods 70 oriented vertically.

The transport belt 46 is separated from the rotary shafts 72a and 72 by a predetermined distance in the direction of the arrow X and arranged in parallel with each other.
b, it is suspended so as to be able to run around.
The transport motor 74 is connected to a. Inside the conveyor belt 46, a fixed first suction box 76 is disposed near the rotating shaft 72b.

The suction mechanism 48 includes a casing 78 that can move forward and backward in the direction of arrow X, and a second suction box 80 housed in the casing 78. As shown in FIG. 4, rails 82 a and 82 b extending in the arrow X direction and parallel to each other are provided on the lower end side of the casing 78, and a plurality of rollers 8 attached to the lower end of the casing 78 are provided.
3 engages with the rails 82a, 82b.

As shown in FIG. 5, together with the mounting plate 84 is formed at the end of the arrow Y ₂ direction side of the casing 78,
The mounting plate 84 is provided with a grip portion 86 and an elongated hole 88 elongated in the direction of the arrow X. A set screw 90 is inserted into the elongated hole 88, and the casing 78 is fixed to a desired position on the imaging table 44 by tightening the set screw 90.

The position setting mechanism 50 includes a plurality of first registration pins 92 that can be engaged with the leading end of the read original 16 in the transport direction (the direction of the arrow X). First driving means 9 for moving back and forth to the combined position
4 and a plurality of second registration pins 9 that can be engaged with side portions of the read original 16 that intersect with the transport direction (the direction of arrow Y).
6 and a second drive unit 98 for moving the second resist pin 96 forward and backward in a direction intersecting the transport direction.

As shown in FIG. 6, the first driving means 94 includes:
A first motor 100 is provided, and a rotating plate 102 is fixed to a drive shaft 100 a of the first motor 100. Rotating plate 102
, One end of the first link 104 is engaged at a position eccentric from the center thereof through a play spring 115, and the other end of the first link 104 is connected to the second link 106.
Rotatably engages one end of At the other end of the second link 106, a long groove 108 which is long in the vertical direction is formed. A pin 110 fitted in the long groove 108 is provided on a plate 114 fixed to a rotating shaft 112. An oscillating plate 116 is fixed to the rotating shaft 112, and a plurality of (for example, four) first resist pins 92 are attached to the
6 are mounted correspondingly.

As shown in FIGS. 6 and 7, the first resist pin 92 has a cylindrical portion 118 fixed to the rocking plate 116.
And a cylindrical elevating head 122 which is fitted to the column portion 118 and which can move forward and backward via a spring 120.
Reference numeral 22 is supported by the cylindrical portion 118 via a locking pin 124 so as not to come off. The elevating head 122 is mounted on the imaging table 44.
A film member 128 for preventing the read document 16 from sticking to a pressure-bonded glass plate (described later) is provided on the upper end surface of the film member 128 through the elliptical opening 126. Is fixed.

As shown in FIG. 8, the second driving means 98 includes
A second motor 130 is provided, and a ball screw 132 connected to the second motor 130 is inserted into the housing 134.
In the housing 134, a nut 136 screwed to the ball screw 132 is provided so as not to rotate, and a spring 138 is housed in contact with the nut 136. Case 13
A slide plate 140 is fixed to the distal end of 4, and the slide plate 140 is positioned in contact with the stopper member 141.

A plurality (eg, four) of slide plates 140
The second resist pin 96 is mounted. The second resist pin 96 is configured in the same manner as the first resist pin 92, and has a cylindrical portion 142 fixed to the slide plate 140.
And a cylindrical raising / lowering head 144 which is fitted to the column portion 142 via a spring (not shown) and which can move back and forth. The lifting / lowering head 144 is connected to the column portion 142 via a locking pin 146. 14
2 is supported. The elevating head 144 protrudes above the imaging table 44 through the oval opening 148 of the imaging table 44, and a film member 150 is fixed to the upper end surface thereof.

At the photographing position of the casing 78, the nonwoven fabric 152 is located between the second suction box 80 and the upper side of the conveyor belt 46, and the cushioning sponge rubber 15.
4 (see FIG. 4).

Above the imaging table 44, a swingable pressure-resistant glass plate 156 is mounted. As shown in FIG. 3, the pressure-bonded glass plate 156 is swingable around one end in the arrow Y direction, and has a handle member 158 and a handle member 15 at the other end.
A pair of swingable locking claws 160 is provided integrally with the locking claw 8, and a spring 162 is engaged with the locking claw 160. On the lower surface of the pressure-bonded glass plate 156, a locking rod 164 is provided in proximity to each locking claw 160 (see FIG. 9).

As shown in FIG. 3, a pair of rods 166 for engaging the locking claws 160 to hold the pressure-resistant glass plate 156 in the closed position and a locking rod 164 are provided on the photographing unit 22 side. A pressing mechanism 168 for pressing upward to maintain the flatness of the pressure-bonded glass plate 156 is mounted. As shown in FIG. 9, the pressing mechanism 168 includes an elevating rod 172 that is pressed upward via a spring 170.
A large-diameter portion 172a that contacts the locking rod 164 is formed at the upper end of 2. A dog member 174 is provided on the side of the lifting rod 172.
Is provided, and a sensor 176 driven by the dog member 174 is disposed at a predetermined height position. The sensor 176 is for detecting whether or not the pressure-bonded glass plate 156 is disposed at the photographing closed position.

As shown in FIG. 2, the document discharge section 24 is disposed close to the end of the conveyor belt 46 and is pivotable via a fulcrum 180. The reversing tray 182 is inclined with respect to the vertical direction. A fixed tray 184.

The plate making machine 10 includes illuminations 186a to 186d for irradiating the reading original 16 with illumination light at the photographing position of the photographing section 22 (the position where the photographing table 44 is raised),
Reflection mirror 18 disposed at a predetermined angle above the mirror 6
8 and a camera 1 for directly recording an image of the read document 16 reflected by the reflection mirror 188 on a predetermined recording medium.
90.

Next, the operation of the supporting device 40 according to the present embodiment will be described in relation to the document feeder 14 in which the supporting device 40 is incorporated.

First, a plurality of read originals 1 are placed on the mounting table 26.
After the sheets 6 are stacked and accommodated, the mounting table 26 is moved up and down to adjust the uppermost read document 16 to a predetermined take-out height position. Then, as shown in FIG. 2, the uppermost read document 16 is taken out by a predetermined distance in the direction of arrow X under the rotation of the take-out roller 32, and
The sheet is sent to the pair of conveying rollers 38 under the rotation of 4, and is conveyed to the photographing unit 22 side via the pair of conveying rollers 38.

In the photographing section 22, the first suction box 76 is driven to suck and hold the read document 16 on the conveyor belt 46, and the conveyor belt 46 runs around under the action of the conveyor motor 74. Further, the second suction box 80 is driven, and the read original 16 is suction-held by the conveyor belt 46 and is conveyed in the arrow X direction, and is positioned at a predetermined photographing position on the photographing table 44 via the position setting mechanism 50. You.

That is, the first resist pin 92 is
As shown in FIG. 6, the leading end of the read document 16 which is held vertically upward and is sucked and held by the conveyor belt 46 and conveyed in the direction of arrow X contacts the first registration pin 92. Stopped by contact. Then, when the second motor 130 constituting the second driving means 98 is driven in a state where the conveyor belt 46 is traveling around, the ball screw 1
Housing 134 via a nut 136 and spring 138 is rotated to the 32, in Fig. 8, abuts against the stopper member 141 moves in the arrow Y ₁ direction. Therefore, the second resist pins 96, integrally with the slide plate 140 moves in the arrow Y ₁ direction, it abuts a side portion of the read document 16 to position the read document 16 in the arrow Y direction.

Next, while the drive of the transport motor 74 is stopped, the lift motor 52 constituting the lift means 42 is driven, and the first and second rotating shafts 58 and 60 rotate via the chain sprocket 56. Thereby, the first pinions 62a and 62b and the second pinions 64a,
64b rotates, and the first rack member 66 meshed therewith.
The photographing table 44 is moved up via the first and second rack members 68a and 68b, and the read original 16 is pressed and held by the pressure glass plate 156.

At this time, the first and second resist pins 9
2 and 96 abut against the pressure-bonded glass plate 156, and the respective elevating heads 122 and 144 descend with respect to the cylindrical portions 118 and 142. Therefore, the read original 16 is securely pressed and held on the pressure-sensitive glass plate 156, and the film members 128, 1 of the first and second resist pins 92, 96 are held.
Reference numeral 50 is disposed between the pressure glass plate 156 and the read document 16.

In this state, the illumination 1 constituting the plate making machine 10
Illumination light is emitted from 86a to 186d,
The camera 190 is energized, and the pasted portion 16b of the image, text, photograph, or the like pasted on the read document 16 is directly recorded on a plate material (not shown), and a printing plate is created.

In this case, a pair of locking rods 164 provided on the side of the rocking tip of the pressure-bonded glass plate 156 is used for the pressing mechanism 1.
Large-diameter portion 172 of a pair of lifting rods 172 constituting 68
a is pressed upward via the spring 170 (see FIG. 9). Therefore, the pressure glass plate 156 can be kept horizontal, and the entire photographing surface of the read document 16 engaged with the pressure glass plate 156 can be accurately arranged at the photographing focal position.

In addition, when the pressure glass plate 156 is closed, the lifting rod 172 is lowered against the pressing force of the spring 170, and the dog member 174 drives the sensor 176.
Accordingly, the open / closed state of the pressure-bonded glass plate 156 can be reliably detected, and an efficient and highly accurate photographing process is performed.

When the above-mentioned photographing operation is completed, the elevating means 4
Since the imaging table 44 is lowered via the second 2, the first and second resist pins 92 and 96 are separated from the pressure-bonded glass plate 156. Therefore, the film members 128 and 150 can surely separate the read original 16 from the pressure glass plate 156, and the read original 16 is attached to the pressure glass plate 156.
Can be effectively prevented from sticking.

When the first motor 100 constituting the first driving means 94 is driven after the photographing table 44 has been lowered to a predetermined height position, the first and second links are rotated by the rotating plate 102. The pin 110 moves through the arrow X through 104 and 106.
Direction. Then, the rotating shaft 112 is
In FIG. 6, the swing plate 11 is rotated integrally with the plate body 114 provided with the
6 and the plurality of first resist pins 92 swing in the arrow X direction. As a result, the first resist pins 92 are
It swings inward and retreats from the transport path of the read document 16.

On the other hand, the second registration pin 96 is driven by a second motor 130 constituting the second driving means 98 to operate.
Slide plate 140 integrally with, in FIG. 8, it is retracted from the side of the read document 16 moves in the arrow Y ₂ direction.

Next, when the transport belt 46 travels around the transport motor 74, the read document 16 is transported in the direction of arrow X and once dropped and supplied to the reversing tray 182. The document 16 to be read is stacked and accommodated on the fixed tray 184 by being inverted around the fulcrum 180 in the direction of the arrow.

When performing a photographing process on the read original 16 having different dimensions, the position adjustment of the suction mechanism 48 and the position setting mechanism 50 is performed according to the dimensions of the original 16. That is, the set screw 90 inserted in the long hole 88 formed in the mounting plate 84 of the casing 78 is loosened, and the grip portion 86 is gripped, and the casing 78 is moved under the guide action of the rails 82 a and 82 b and the roller 83. Move in the direction of arrow X. Then, the second suction box 80 has an arrow X corresponding to the size of the new read document 16.
The casing 78 is positioned and fixed at a desired position by tightening the set screw 90 in a state where the casing 78 is arranged at a predetermined position in the direction.

As described above, in this embodiment, the second suction box 80 and the position setting mechanism 50
The position can be adjusted in the direction of the arrow X in accordance with the dimension of 6. Therefore, unlike a conventional configuration in which only the registration pins are changed in position according to the size of the read document 16, a desired position of the read document 16 can be always sucked and positioned. In addition, there is no need to control the suction timing by the second suction box 80 according to the size of the read document 16.

For this reason, in the present embodiment, the operation of sucking and positioning the read original 16 can be performed reliably and easily, and it is possible to reliably prevent the read original 16 from causing a problem such as buckling. Becomes possible. This allows
It is possible to accurately position the read originals 16 of various sizes, and it is possible to obtain an effect that a high-precision photographing operation is easily and efficiently performed.

[0045]

According to the reading document supporting device in the reading section according to the present invention, the following effects can be obtained.

The position of the suction mechanism for sucking and holding the read document on the transport belt is adjusted in accordance with the size of the read document. Is positioned. Accordingly, it is not necessary to perform complicated control, and it is possible to accurately and smoothly position the read originals of various sizes with respect to the imaging table, and the imaging operation of the read original is efficiently performed.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a state in which a document conveying device incorporating a reading document supporting device according to an embodiment of the present invention is mounted on a plate making machine.

FIG. 2 is a schematic front view of the configuration of the document feeder.

FIG. 3 is a schematic perspective view of the document feeder.

FIG. 4 is a schematic front explanatory view of the support device.

FIG. 5 is an explanatory plan view of the support device.

FIG. 6 is an explanatory perspective view of a first resist pin and a first driving unit constituting the supporting device.

FIG. 7 is an explanatory longitudinal sectional view of the first resist pin.

FIG. 8 is an explanatory perspective view of a second resist pin and a second driving means constituting the supporting device.

FIG. 9 is a partially longitudinal explanatory view of a pressure-bonded glass plate and a pressing mechanism constituting the supporting device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Plate making machine 14 ... Document conveyance device 16 ... Reading original 18 ... Document mounting mechanism 20 ... Separation conveyance mechanism 22 ... Photographing part 24 ... Document discharge part 40 ... Supporting device 42 ... Elevating means 44 ... Photographing table 46 ... Conveying belt 48 ... Suction mechanism 50 ... Position setting mechanism 52,74 ... Motor 78 ... Casing 80 ... Suction box 86 ... Gripping part 90 ... Set screw 92,96 ... Registration pin 94,98 ... Drive means 100 ... Motor 122 ... Elevating head 128 ... Film member 130 ... Motor 144 ... Elevating head 150 ... Film member 158 ... Handle member 160 ... Locking pawl 168 ... Pressing mechanism 176 ... Sensor

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tsuyoshi Fukawata 1005 Kozono, Ayase-shi, Kanagawa Prefecture Inside Fuji Micro Graphics Co., Ltd. (56) References JP-A-4-51228 (JP, A) -10356 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65H 9/00-9/20 B65H 5/22 G03B 27/62

Claims (3)

(57) [Claims] A reading section for reading an image or the like carried on the read original while the original to be read conveyed by a conveying belt provided on a photographing table is sandwiched between a pressure glass plate and the conveying belt; A reading document support device for positioning and supporting the reading document at a predetermined photographing position, wherein the reading document is sucked and held by the transport belt, and the position of the reading document can be adjusted according to the size of the reading document. A suction mechanism, and a position setting mechanism for positioning the read document corresponding to the predetermined photographing position, wherein the position setting mechanism is capable of engaging with a leading end of the read document in the transport direction. A registration pin; first driving means for moving the first registration pin to an engagement position with the read original; and a second drive unit engageable on one side of the read original which intersects the transport direction. And Jisutopin, the second drive means for advancing and retracting in the direction of the second resist pin crossing the conveyance direction, the document supporting device reading in the read unit, characterized in that it comprises a. 2. The supporting device according to claim 1, wherein the photographing table is configured to be able to move up and down, and the first and second resist pins are arranged so that the photographing table rises and abuts the pressure-bonded glass plate. A lifting head that descends against the elastic body, and the lifting head is inserted between the crimped glass plate and the read original and adheres the read original to the crimped glass plate. A reading document supporting device in a reading section, wherein a film member for preventing the reading is mounted. 3. The supporting device according to claim 1, wherein a locking mechanism for locking the openable and closable end of the pressed glass plate at a closing movement position for photographing, and an openable and closable end of the pressed glass plate are provided. a pressing mechanism for maintaining the flatness of the piezoelectric deposition glass plate is pressed against the opening movement direction by the elastic force of the spring member, since the crimping glass plate for detecting whether or not arranged in the photographing closing position And a sensor for reading a document in a reading unit.