JP3725814B2 - Printing plate accumulator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a printing plate stacking apparatus for stacking photosensitive lithographic printing plates.
[0002]
[Prior art]
Photosensitive materials used for printing include photosensitive lithographic printing plates (hereinafter referred to as “printing plates”) in which a photosensitive layer is formed on a support such as aluminum. This printing plate is developed after image exposure. At the time of this development processing, the printing plates developed and discharged from the automatic developing device are sequentially accumulated by the accumulating device, and a large number of accumulated printing plates are conveyed to the next process.
[0003]
The stacking device used for stacking the printing plates is formed in a substantially V shape when viewed from the side by a slope portion inclined downward from the discharge port of the automatic developing device and a stock portion facing the slope portion. There is something that was done. In such a stacking apparatus, after the printing plate discharged from the discharge port is placed on the slope portion, the printing plate is moved to the stock portion by swinging toward the stock portion around the lower end portion of the slope portion. I try to knock it down and stand up.
[0004]
By the way, when the printing plate discharged from the automatic developing device is placed on the slope portion, when the printing plate slides on the slope, the lower end of the printing plate comes into contact with a stopper or the like and stops. In some cases, the lower end portion of the printing plate may be damaged or bent.
[0005]
For this purpose, a plate detection sensor is provided at the upper end of the slope portion in the vicinity of the discharge port of the automatic developing device, and the bracket moves downward while supporting the front end of the printing plate along the upper surface of the slope portion. There is an integrated device provided. In such a stacking apparatus, when the leading edge of the printing plate discharged from the discharge port of the automatic developing device is detected by the plate detection sensor, the printing plate is discharged from the automatic developing device at the timing when the leading edge of the printing plate reaches the bracket. The bracket is moved downward in accordance with the conveyance speed of the printing plate so that the printing plate is prevented from being damaged when the printing plate moving downward on the slope portion stops.
[0006]
On the other hand, there are various sizes of printing plates having different vertical dimensions and width dimensions. For example, in an automatic developing device that develops the printing plates, printing plates having different width dimensions as well as dimensions along the transport direction are available. Different printing plates can be processed.
[0007]
[Problems to be solved by the invention]
However, the stacking apparatus is generally sized to match the printing plate of the maximum size. For this reason, when stacking printing plates of small size, particularly small size along the conveying direction, the printing plate There is a problem that the installation space of the integrated device becomes larger than the size of the above.
[0008]
The present invention has been made in view of the above facts, and is adapted to the size of the printing plate to be accumulated. No Suppressing the increase in installation space Accumulate smoothly without damaging the printing plate An object of the present invention is to propose a printing plate stacking apparatus that can be used.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a printing plate stacking apparatus for stacking a printing plate sent out from a discharge port of a printing plate processing apparatus by leaning on a stock unit, Between the outlet and the stock section A placement part for placing the printing plate disposed opposite to the stock part and discharged from the discharge port in an inclined state, and disposed in the vicinity of the discharge port on an extension of the inclination of the placement part. A head portion that guides the printing plate discharged from the discharge port to the mounting portion, a plate detection unit that is provided in the head portion and detects the printing plate discharged from the discharge port, By moving a hook that is provided in the placement unit and that abuts the leading end of the printing plate in the discharge direction, the printing plate is moved downward along the upper surface of the placement unit while supporting the printing plate. Said Support guide means for placing on the placement section; reversing means for leaning and stacking the printing plate placed on the placement section toward the stock section; And an intermediate guide portion that is detachably provided between the placement portion and can adjust an interval between the head portion and the placement portion according to a length of the printing plate along a discharge direction of the printing plate. , Detection result of the plate detection means as well as The mounting portion and the head Part Control means for operating the support guide means at a timing based on the interval.
[0010]
According to the present invention, the front end of the printing plate discharged from the discharge port of the printing plate processing apparatus is moved downward along the upper surface of the mounting portion while being supported by the hook, so that the printing plate is placed on the mounting portion. Is placed. Thereafter, the printing plate is tilted toward the stock portion by the reversing means, and the printing plate is leaned against the stock portion and accumulated.
[0011]
On the other hand, an intermediate guide part can be attached between the placing part and the head part. As a result, when stacking printing plates having a long length along the discharge direction, the upper end portion of the large size printing plate is moved upward from the head portion by providing the intermediate guide portion between the mounting portion and the head portion. It can be prevented from coming off.
[0012]
Further, when collecting small size printing plates, the intermediate guide portion can be shortened or removed to reduce the interval between the placing portion and the head portion.
[0013]
At this time, the control means determines the leading edge of the printing plate sent out from the discharge port by the plate detection means based on the distance between the head portion and the placement portion by the intermediate guide portion arranged between the head portion and the placement portion. The timing for moving the hook downward after detection is set.
[0014]
As a result, not only large-size printing plates but also small-sized printing plates can be collected without damaging the tip portion or the like. Further, when collecting printing plates of a small size, the installation space for the apparatus does not become unnecessarily large.
[0015]
In the present invention, the head portion, Said It is preferable to include an adjusting means that can integrally adjust the inclination angle between the intermediate guide portion and the head portion from the head portion.
[0016]
In general, the height of the discharge port of the printing plate processing apparatus is constant, and when the interval between the mounting portion and the head portion is reduced at the same inclination angle, the head portion is lowered. At this time, the head portion can be maintained at an appropriate height by adjusting the tilt angle. Further, when the head portions are kept at the same height, the installation space can be further reduced when collecting small-size printing plates.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0018]
FIG. 1 shows a schematic configuration of a stocker 10 that is a printing plate stacking apparatus to which the present invention is applied. The stocker 10 has a general configuration in which a photosensitive layer is formed on a support formed of an aluminum plate having a plate thickness of about 0.1 mm to 0.5 mm as the printing plate 12. The printing plate 12 may be a convex plate, a CTP thermal plate, a photopolymer plate, or the like, and the support is not limited to aluminum and is formed of an arbitrary material such as a resin. What you did is fine.
[0019]
The stocker 10 is provided adjacent to the discharge port 16 of the automatic developing device 14 that develops the printing plate 12, and the printing plate 12 that is sandwiched between the discharge roller pair 18 after being developed and sent out from the discharge port 16. Accumulate.
[0020]
The stocker 10 includes a slope portion 20 and a stock portion 22, the slope portion 20 is disposed on the discharge port 16 side of the automatic developing device 14, and forms a substantially V shape with the stock portion 22.
[0021]
The stock unit 22 is provided with a back plate 26 on a base 24. The back plate 26 is fixed on the base 24 by being inclined at a predetermined angle by the support plate 28 so that the lower end is on the slope portion 20 side.
[0022]
Further, a receiving plate 30 protrudes from the lower end of the back plate 26 toward the slope portion 20 substantially perpendicular to the back plate 26 in the stock portion 22.
[0023]
Thereby, in the stock part 22, the printing plate 12 is stacked such that the printing plate 12 leans against the back plate 26 with the lower end part in contact with the receiving plate 30.
[0024]
A plurality of casters 32 are provided at predetermined positions on the base 24 of the stock unit 22. As a result, the stock unit 22 moves in a state in which a large number of printing plates 12 are stacked and mounted on the back plate 26, and the printing plate 12 can be transported.
[0025]
On the other hand, the slope portion 20 is provided with a support frame 36 on the base 34. The slope portion 20 is supported on the floor surface by a plurality of legs 38 provided on the base 34 and is disposed at a predetermined position with respect to the automatic developing device 14.
[0026]
The support frame 36 is inclined at a predetermined angle with respect to the support plate 40 provided on the base 34 so that the stock portion 22 side is downward, and the slope portion 20 has a slope on the upper surface side of the support frame 36. 42 is formed. The printing plate 12 sent out from the discharge port 16 of the automatic developing device 14 moves downward on the slope 42 and is placed on the slope 42.
[0027]
The lower end of the support frame 36 reaches substantially below the back plate 26 on the base 24 of the stock portion 22. A stopper 44 is provided at the lower part of the support frame 36, and the printing plate 12 is placed on the slope 42 with the leading end along the discharge direction (arrow A direction) serving as the lower end in contact with the stopper 44. Placed on. The slope portion 20 and the stock portion 22 are connected by inserting a pin 48 into a channel 46 provided on the base 34 of the slope portion 20 with the base 24 of the stock portion 22 inserted. As a result, the base 24 is fixed to the base 34.
[0028]
The support frame 36 is provided with a header portion 50 at the distal end portion of the automatic developing device 14 on the discharge port 16 side. A guide roller 52 is attached to the header section 50, and the guide roller 52 allows the printing plate 12 fed from the discharge port 16 to smoothly move downward on the slope 42.
[0029]
A plurality of intermediate guide members 54 each having a predetermined width W can be attached between the support frame 36 and the header portion 50. Thereby, in the slope part 20, the length of the slope 42 can be changed now. That is, in the slope portion 20, the number of intermediate guide members 54 corresponding to the length of the printing plate 12 to be accumulated is attached, so that the length of the slope 42 can be matched to the length of the printing plate 12 to be accumulated. It is like that.
[0030]
An attachment frame 36A is formed at the upper end of the support frame 36, and when the intermediate guide member 54 is not provided or when the number of intermediate guide members 54 is small and the intermediate guide member 54 does not jump out of the attachment frame 36A. The header portion 50 or the header portion 50 and the intermediate guide member 54 can be attached to the attachment frame 36A.
[0031]
Further, when the number of intermediate guide members 54 is increased, the connecting frame 56A is attached to the attaching frame 36A so that the attaching frame 36A is extended, and the intermediate guide member 54 protruding from the attaching frame 56A is attached to the connecting frame 56. To be able to.
[0032]
Thereby, even when a large number of intermediate guide members 54 are attached to the support frame 36, the slope 42 is reliably prevented from being bent.
[0033]
On the other hand, the support frame 36 is provided with a shaft 58 at the lower end, and this shaft 58 is pivotally supported by the support plate 40. As a result, the support frame 36 can swing around the shaft 58.
[0034]
A bracket 60 is attached to the support frame 36. The bracket 60 is opposed to a long hole 62 formed in an arc shape centering on the shaft 58 in the support plate 40, and a bolt inserted into a mounting hole (not shown) formed in the bracket 60. The support frame 36 can be fixed to the support plate 40 by inserting 64 into the long hole 62 and fastening the bracket 60 to the support plate 40.
[0035]
At this time, the support frame 36 can be fixed at an arbitrary inclination angle within a predetermined range by using the arc-shaped long hole 62 centered on the shaft 58. That is, the slope portion 20 can adjust the inclination angle of the slope 42 using the long hole 62 and the bracket 60 as the adjusting means.
[0036]
On the other hand, in the support frame 36, a slide unit 66 serving as a movement guide unit and a reversing unit 68 serving as a reversing unit are provided.
[0037]
FIG. 2 shows a schematic configuration of the slide unit 66 provided in the support frame 36, and FIG. 4A shows a schematic configuration of the reversing unit 68. In the stocker 10, the reversing unit 68 is arranged so that the slide unit 66 is on the lower side and overlaps the upper side of the slide unit 66.
[0038]
As shown in FIG. 2, the slide unit 66 includes a pair of side plates 70 (70A and 70B) provided in a support frame 36 (not shown in FIG. 2). The pair of side plates 70 is formed in a substantially rectangular shape with an upper end portion connected by a connecting plate 72 and a lower end portion connected by a connecting plate 74.
[0039]
A pair of guide shafts 76 are spanned between the connection plates 72 and 74 in the vicinity of the side plate 70, and a slide bar 78 is spanned between the pair of guide shafts 76. A slide bearing 80 is attached to the slide bar 78, and a guide shaft 76 is inserted into each of the slide bearings 80, so that the slide bar 78 can move along the axis of the guide shaft 76. Yes.
[0040]
Pulleys 82A and 82B are rotatably attached to the side plates 70 in the vicinity of the connecting plates 72 and 74, and an endless moving belt 84 is wound around the pulleys 82A and 82B. Further, the pulley 82B arranged in the vicinity of the connecting plate 74 on the lower end side is attached to a shaft 58 that is rotatably spanned between the side plates 70A and 70B.
[0041]
In the slide bar 78, the tip portions protruding from the side plates 70A and 70B are respectively connected to the moving belt 84, so that the slide bar 78 moves along the slope 42 (see FIG. 1) can be moved up and down (in the direction of arrow A and in the direction opposite to the direction of arrow A).
[0042]
A lift motor 86 is attached to one side plate 70A (see also FIG. 1). In the lift motor 86, a pulley 88 is attached to a rotating shaft 86A, and a pulley 90 that is opposed to the pulley 88 is attached to the shaft 58 adjacent to the pulley 82B. An endless drive belt 82 is wound around the pulley 88.
[0043]
As a result, the shaft 58 is rotated by the drive of the lift motor 86, whereby the slide bar 78 is moved.
[0044]
On the other hand, a plurality of receiving guides 94 are attached to the slide bar 78. Each of the receiving guides 94 is disposed at a predetermined interval along the width direction of the printing plate 12 that is the longitudinal direction of the slide bar 78 and is attached to the slide bar 78.
[0045]
As shown in FIGS. 3 (A) and 3 (B), the receiving guide 94 includes a bracket 96 having a substantially L-shaped side surface, and the bracket 96 moves the front end portion 96A of the printing plate 12. It is attached to be directed downstream in the direction (arrow A direction).
[0046]
A swing arm 98 is attached to the distal end portion 96 </ b> A of the bracket 96. The swing arm 98 is formed with a hook 100 facing the front end of the printing plate 12 on one end side in the longitudinal direction and a guide roller 102 on the other end side. The swing arm 98 is arranged so that the hook 100 is on the upper side (the upper side in FIG. 3 (A) and FIG. 3 (B)). It is pivotally supported by the portion 96A, and can be rotated (swinged) about the pin 104 as an axis.
[0047]
Further, as shown in FIG. 3B, a spring 106 is interposed between the bracket 96 and the swing arm 98. The spring 106 biases the hook 100 of the swing arm 98 so as to protrude toward the upper surface side of the slope 42 (see FIG. 1). Further, the swing arm 96 falls by swinging around the pin 104 against the urging force of the spring 106, and the hook 100 is retracted from the slope 42.
[0048]
That is, the swing arm 98 swings so that the guide roller 102 is on the bracket 98 side against the urging force of the spring 106, whereby the hook 100 is tilted to the downstream side in the moving direction of the printing plate 12, It is adapted to enter the support frame 96.
[0049]
On the other hand, as shown in FIG. 2, a stop plate 108 is provided on the lower connection plate 74 of the slide unit 66 so as to face each of the receiving guides 94. Each of the stop plates 108 comes into contact with the guide roller 102 of the swing arm 98 provided in each of the receiving guides 94 as the slide bar 78 moves to a predetermined position near the connecting plate 74. Yes.
[0050]
As a result, the guide roller 102 provided in the receiving guide 94 is prevented from moving downward, and the swing arm 98 swings in a direction in which the hook 100 is tilted.
[0051]
In the stocker 10, when the leading end of the printing plate 12 discharged from the discharge port 16 of the automatic developing device 14 approaches the hook 100 up to a predetermined distance, the lifting motor 86 is driven, and the slide bar 78 is moved to the automatic developing device. 14 is moved at a speed slightly slower than the discharge speed (conveyance speed) of the printing plate 12 from 14. Thus, the printing plate 12 is supported so that the tip abuts against the hook 100 while the hook 100 is moving downward, and moves downward on the slope 42.
[0052]
In this embodiment, as an example, when the tip of the printing plate 12 approaches the hook 100 to about 30 mm, the lifting motor 86 is driven so that the moving speed is about 3% slower than the discharging speed of the printing plate 12. It is set to be. Note that the timing of the downward movement of the hook 100 and the downward movement speed are not limited thereto.
[0053]
On the other hand, as shown in FIG. 4, in the reversing unit 68, a plurality of support bars 110 are arranged along the width direction of the printing plate 12 at predetermined intervals along the moving direction of the printing plate 12. The support bar 110 has an upper end portion connected by a connecting bar 112 and a lower end portion connected by a shaft 114, thereby forming a substantially rectangular frame.
[0054]
Each support bar 110 is provided with a guide member 116, and the printing plate 12 is supported by the guide member 116.
[0055]
When the reversing unit 68 is accommodated in the support frame 36 (not shown in FIG. 4A) so as to overlap the slide unit 66 so as to be on the upper side of the slide unit 66, the reversing unit 68 is inserted between the support bars 110. The hook 100 of the receiving guide 94 provided on the slide unit 66 protrudes (not shown). At this time, the printing plate 12 whose tip is supported by the hook 100 moves on the guide member 116.
[0056]
On the other hand, as shown in FIGS. 4A and 4B, each of the support bars 110 is provided with the stopper 44 described above at the lower end. As shown in FIGS. 1, 4 (A), and 4 (B), each of the stoppers 44 is arranged such that when the reversing unit 68 is accommodated in the support frame 36, the stopper 44 is on the upper surface side of the slope 42. It is formed in the support bar 112 so that it may protrude in the direction.
[0057]
As a result, as shown in FIG. 5A, the front end of the printing plate 12 supported by the hook 100 is opposed to the stopper 44 at the lower end portion of the slope 42.
[0058]
At this time, the receiving guide 94 provided in the slide unit 66 further moves downward, and the guide roller 102 of the receiving guide 94 abuts against the stop plate 108 (not shown in FIG. 5A, see FIG. 5). Thus, the swing arm 98 swings in the direction in which the hook 100 is retracted, so that the support of the front end of the printing plate 12 by the hook 100 is released. As a result, the printing plate 12 comes into contact with the stopper 44, stops moving on the slope 42, and is supported and placed on the support j bar 112 provided in the reversing unit 68. As shown in FIG. 4B, the stopper 44 has a slightly bent tip (upper end), so that the tip of the printing plate 12 delivered from the hook 100 can be reliably received. ing.
[0059]
As shown in FIG. 1, the shaft 114 provided in the reversing unit 68 is pivotally supported by the support plate 40, whereby the reversing unit 68 is directed toward the stock portion 22 side with the shaft 114 as an axis. It can swing.
[0060]
On the other hand, the slope portion 20 is provided with a swing motor 118 on the base 34 and a swing motor 118 and a pulley 120 on the base 34. A pulley 122 is provided on the rotation shaft of the swing motor 118, and an endless drive belt 124 is wound between the pulley 122 and the pulley 120. As a result, the pulley 120 is rotated by driving the swing motor 118.
[0061]
One end of a link lever 126 is attached to the pulley 120, and one end of a link arm 128 is rotatably connected to the other end of the link lever 126 via a pin 130. The other end of the link arm 128 is rotatably connected to the support bar 110 of the reversing unit 68 via a pin 132.
[0062]
Thereby, when the pulley 120 rotates, the link lever 126 pushes the reversing unit 68 toward the stock portion 22. At this time, since the reversing unit 68 is pivotally supported about the shaft 114, the reversing unit 68 is rotated toward the stock unit 22 about the shaft 114.
[0063]
By the rotation of the reversing unit 68, the sword plate 12 supported by the support bar 110 of the reversing unit 68 is tilted toward the stock portion 22 and is tilted toward the back plate 26 of the stock portion 22. At this time, the stopper 44 provided at the lower end of the support bar 110 rotates integrally with the support bar 110 while supporting the lower end of the printing plate 12.
[0064]
On the other hand, as shown in FIG. 5 (B), a notch 134 is formed on the receiving plate 30 provided in the stock portion 22 so as to face the stopper 44 provided on the support bar 110 of the reversing unit 68. ing.
[0065]
Further, the stopper 44 provided on the support bar 110 and the receiving plate 30 of the stock portion 22 are overlapped when the stopper 44 is rotated integrally with the support bar 110. At this time, the stopper 44 Passes through the notch 134 formed in the receiving plate 30.
[0066]
As a result, when the stopper 44 moves downward of the receiving plate 30, the leading end of the printing plate 12 supported by the stopper 44 comes into contact with the receiving plate 30, and the downward movement is prevented, thereby preventing the printing plate 12. Is delivered to the stock unit 22 and is leaned and held in such a manner as to fall into the back plate 26.
[0067]
In FIG. 6, the schematic structure of the control part 140 provided in the slope part 20 of this stocker 10 is shown. The controller 140 is provided with a controller 142 having a microcomputer (not shown), and an elevator motor 86 and a swing motor 118 are connected to the controller 142.
[0068]
The controller 142 is connected with a standby position sensor 144 and a descending position sensor 146 for the slide unit 66, and an original position sensor 148 and a reverse position sensor 150 for the reverse unit 68. The standby position sensor 144 is for position detection when the slide bar 78 of the slide unit 66 moves to the upper side of the slope 42 and stands by, and the lower end position sensor 146 has the slide bar 78 downward. When moved, the guide roller 102 of the receiving guide 94 abuts against the stop plate 108 and is used for detecting the position of the slide bar 78 when the hook 100 is retracted from the slope 42.
[0069]
The original position sensor 148 is for detecting the original position where the reversing unit 68 is accommodated in the support frame 36, and the reversing position sensor 150 is arranged so that the reversing unit 68 is tilted most toward the stock portion 22 side. The controller 142 is for detecting the set position, and the controller 142 controls the operation of the elevating motor 86 and the swing motor 118 based on the detection states of these sensors.
[0070]
A plate detection sensor 152 and an input switch 154 are connected to the controller 142. As shown in FIGS. 8 and 9, the plate detection sensor 152 is provided in the head unit 50 and detects the leading end of the printing plate 12 discharged from the discharge port 16 of the automatic developing device 14.
[0071]
In the stocker 10, the head unit 50 is provided at the upper end of the slope 42 regardless of whether or not the intermediate guide member 54 is present, so that the controller 142 allows the printing plate 12 to be fed out from the automatic developing device 14. The tip can be reliably detected.
[0072]
The controller 142 operates the elevating motor 86 at a timing based on the detection result of the plate detection sensor 152 so that the tip of the printing plate 12 is reliably supported by the hook 1100 and moved downward.
[0073]
On the other hand, the input switch 154 is set to the number of intermediate guide members 54 arranged between the support frame 36 and the head unit 50, for example. Thereby, the controller 142 sets the timing when the front end of the printing plate 12 detected by the plate detection sensor 152 reaches the hook 100, and operates the lifting motor 86 based on this timing.
[0074]
Hereinafter, as an operation of the present embodiment, an accumulation process of the printing plate 12 using the stocker 10 will be described with reference to FIG.
[0075]
This flowchart is executed when a power switch (not shown) is turned on, and is ended when the power switch is turned off. In the first step 200, the setting of the input switch 154 is read and the initial setting is performed. In the input switch 154, the number of intermediate guide members 54 provided between the support frame 36 and the head unit 50 is set, and the controller 142 reads the set number of the intermediate guide members 54 to thereby detect the plate detection sensor. An interval Ts that is a time until the leading edge of the printing plate 12 detected by 152 reaches the hook 100 waiting at the standby position is set.
[0076]
In the stocker 10, the number of intermediate guide members 54 attached to the support frame 36 can be arbitrarily set, and the distance from the head unit 50 to the stopper 44, which is the length of the slope 42, can be set by the number of intermediate guide members 54. Can be adjusted.
[0077]
That is, when the printing plates 12 having a long size along the conveying direction are stacked, if the slope 42 is short, the leading end portion of the printing plate 12 protrudes from the slope 42. Further, when the printing plates 12 having a short size along the transport direction are stacked, if the slope 42 is too long, a useless space is generated.
[0078]
From here, the stocker 10 prevents the slope 42 from being too long or too short by providing the number of intermediate guide members 54 corresponding to the length along the conveying direction of the printing plates 12 to be accumulated. To do.
[0079]
If the number of intermediate guide members 54 is different, the distance X from the plate detection sensor 152 of the head unit 50 to the hook 100 changes. That is, as shown in FIG. 8, when two (two) intermediate guide members 54 are provided, the distance X is equal to the distance X. ₁ It becomes. Further, as shown in FIG. 9, the distance X when the intermediate guide member 54 is single is the distance X ₁ Therefore, the distance X shorter by the width dimension W of the intermediate guide member 54 ₂ (X ₁ > X ₂ , X ₁ = X ₂ + W).
[0080]
From here, the controller 142 calculates the distance X from the plate detection sensor 152 to the hook 100 based on the setting of the input switch 154, and from this calculation result and the discharge speed of the printing plate 12 from the automatic developing device 14, The time until the leading edge of the printing plate 12 detected by the plate detection sensor 152 reaches the hook 100 is calculated, and this time is set as the interval Ts.
[0081]
On the other hand, in order to accumulate accurately without damaging the printing plate 12 discharged from the automatic developing device 14, for example, the height difference between the discharge port 16 and the tip of the head unit 50 is set to 50 mm or less. It is necessary to arrange the upper end of the head unit 50 at a fixed position with respect to the discharge port 16. At this time, if the length of the slope 42 is changed, the height of the upper end of the head unit 50 is also changed, and the height difference between the discharge port 16 and the head unit 50 is out of the proper range.
[0082]
In contrast, in the stocker 10, the inclination angle of the slope 42, which is the angle of the support frame 36, can be adjusted by adjusting the position of the bracket 60 with respect to the support plate 40 of the slope portion 20. That is, the inclination angle of the support frame 36 can be changed by adjusting the mounting position of the bracket 60 provided on the support frame 36 in the long hole 62.
[0083]
Accordingly, for example, as shown in FIG. 8, when two intermediate guide members 54 are provided to stack the printing plates 12 having a long length along the conveying direction, as shown in FIG. The bracket 60 is fixed below the long hole 62. Thereby, the upper end of the head part 50 can be arrange | positioned with respect to the discharge port 16 in predetermined height.
[0084]
On the other hand, as shown in FIG. 9, when the number of intermediate guide members 54 is reduced (for example, one), as shown in FIG. Move upward. Thereby, even if the inclination angle of the support frame 36 is increased and the length of the slope 42 is short, the height of the head unit 50 can be increased, and the upper end of the head unit 50 is set to a predetermined position with respect to the discharge port 16. Can be set to height.
[0085]
On the other hand, when the inclination angle of the slope 42 is increased, the installation space for the stocker 10 along the conveyance direction of the printing plate 12 can be shortened. That is, as shown in FIG. 10A, when the slope 42 is long, the length L that is the installation space of the stocker 10 along the conveyance direction of the printing plate 12 is the length L. ₁ When the slope 42 is short, the length L is equal to the length L as shown in FIG. ₁ Shorter length L ₂ Next (L ₁ > L ₂ ), Further space saving can be achieved.
[0086]
Accordingly, for example, in order to stack the printing plate 12 having a length of up to 1310 mm along the transport direction, two intermediate block members 54 are used as shown in FIGS. When the height H up to the tip of 50 is 926 mm, the length L (L ₁ ) Is 1478 mm. On the other hand, when the printing plates 12 having a length of about 940 mm along the transport direction are to be stacked, a single intermediate guide member 54 may be used as shown in FIGS. 9 and 10B. , So that the length L (L ₂ ) Fits at 1295mm.
[0087]
That is, as shown in FIGS. 10A and 10B, the length of the slope 42 is adjusted to the length of the printing plate 12 without changing the height H from the floor surface to the tip of the head unit 50. As a result, it is possible to collect the printing plates 12 having a large size, and to save space when collecting the printing plates 12 having a small size.
[0088]
In the present embodiment, the length of the slope 42 is changed using the intermediate guide member 54 having a constant width dimension W that is the length along the conveying direction of the printing plate 12. Not limited to this, intermediate guide members having different lengths may be attached. An arbitrary method can be used as a method of attaching the intermediate guide member. Further, the intermediate guide member is not limited to replacement or detachable, but may be telescopic.
[0089]
In the flowchart shown in FIG. 7, when the setting of the interval Ts is completed, the printing plate 12 can be accumulated.
[0090]
In the stacking process of the printing plate 12, first, in step 202, it is confirmed whether or not the plate detection sensor 152 has detected the leading edge of the printing plate 12. At this time, in the stocker 10, the hook 100 is moved to the standby position, and the reversing unit 68 is moved to the original position in the support frame 36.
[0091]
Here, when the printing plate 12 processed by the automatic developing device 14 is sent out from the discharge port 16 by the discharge roller pair 18, the tip of the printing plate 12 passes above the plate detection sensor 152, and the plate detection sensor. Detected by 152. Thereby, an affirmative determination is made at step 202 and the routine proceeds to step 204.
[0092]
In step 204, a timer (not shown) is reset / started to start counting the interval Ts. That is, the measurement of the timing at which the front end of the printing plate 12 sent out from the discharge port 16 approaches the hook 100 up to a predetermined distance (for example, about 30 mm) is started.
[0093]
In the next step 206, it is confirmed whether the measurement time T has reached the interval Ts. When the measurement time T reaches the interval Ts (T = Ts), an affirmative determination is made in step 206, and the process proceeds to step 208. Driving of the lifting motor 86 is started so that the hook 100 is lowered. In step 210, it is confirmed whether or not the lower end position sensor 146 is turned on. That is, it is detected whether the slide bar 78 provided with the hook 100 is lowered to a predetermined position. Further, at step 112, the lower end position sensor 146 is turned on, and when the determination at step 210 is affirmative, the elevating motor 86 is stopped.
[0094]
As a result, when the front end of the printing plate 12 approaches the hook 100 to a predetermined distance, the moving speed (for example, about 3% slower) than the conveying speed (feeding speed) of the printing plate 12 in the automatic developing device 14 is slow. The printing plate 12 fed out from the automatic developing device 14 is supported by the tip 100 being in contact with the hook 100 being moved, and further on the slope 42 while being supported by the hook 100. Descend.
[0095]
When the slide unit 66 is lowered by driving the lifting motor 86, the hook 100 is lowered toward the stopper 44 provided in the reversing unit 68. At this time, the slide unit 66 is provided with a stop plate 108. When the hook 100 approaches the stopper 44 and the guide roller 102 contacts the stop plate 108, the swing arm 96 provided with the hook 100 is provided. Rotate.
[0096]
As a result, the hook 100 is retracted from the slope 42, the support of the front end of the printing plate 12 is released, the front end of the printing plate 12 comes into contact with the stopper 44, and the lowering of the printing plate 12 is stopped. At the same time, when the lower end position sensor 146 is turned on, an affirmative determination is made in step 110, the process proceeds to step 112, the drive of the lift motor 86 is stopped, and the printing plate 12 is placed on the reversing unit 68.
[0097]
Thereafter, in step 214, the swing motor 118 is driven, and in step 216, it is confirmed whether or not the reverse position sensor 150 is turned on.
[0098]
The reversing unit 68 is rotated from the inside of the support frame 36 toward the back plate 26 of the stock unit 22 when the lifting motor 118 is driven. As a result, the printing plate 12 is lifted by the reversing unit 68 in a state where the lower end portion is supported by the stopper 44, and falls toward the stock portion 22.
[0099]
When the reversing unit 68 swings toward the stock portion 22, the stopper 44 supporting the lower end of the printing plate 12 rotates integrally with the shaft 114 as an axis. As a result, the stopper 44 passes through the notch 134 provided in the receiving plate 30 of the stock portion 22 and moves below the receiving plate 30.
[0100]
As a result, the lower end of the printing plate 12 supported by the stopper 44 is transferred to and supported by the receiving plate 30. At the same time, the printing plate 12 lifted by the reversing unit 68 falls toward the back plate 26 of the stock unit 22, so that the printing plate 12 is stacked while leaning against the back plate 26. At this time, when the reversing unit 68 is rotated to a predetermined position and the reversing position sensor 150 is turned on, an affirmative determination is made in step 216, the process proceeds to step 218, and the swing motor 118 is driven in reverse.
[0101]
As a result, the reversing unit 68 that has transferred the printing plate 12 to the stock unit 22 starts to swing toward the support frame 36.
[0102]
In step 220, it is confirmed whether or not the original position sensor 148 is turned on. When the reversing unit 68 is accommodated in the support frame 36 and the original position sensor 148 is turned on, an affirmative determination is made in step 220 and the process proceeds to step 222. Then, the swing motor 118 is stopped.
[0103]
In this way, when the delivery of the printing plate 12 to the stock unit 22 is completed, in step 224, the lift motor 86 is driven in reverse to move the slide bar 78 upward and return the hook 100 to the standby position. At this time, when the guide roller 102 of the swing arm 98 provided with the hook 100 is separated from the stop plate 108, the hook 100 is projected on the slope 42, and the standby position sensor 144 is turned on, so that an affirmative determination is made in step 226. Then, the process proceeds to step 228 where the elevating motor 86 is stopped and waits until the next printing plate 12 is discharged.
[0104]
As described above, in the stocker 10, the printing plate 12 that has been moved downward on the slope 42 is received and supported by the stopper 44 provided at the lower end of the slope 42, and the printing plate 12 is tilted toward the stock unit 22. At this time, since the stopper 44 is transferred to the receiving plate 30 of the stock portion 22, the tip of the printing plate 12 is not damaged when descending on the slope 42.
[0105]
That is, when the printing plate 12 that moves downward on the slope 42 stops with its tip brought into contact with the receiving plate 30 of the stock portion 22, the hook that moves downward while supporting the printing plate reverses. In addition, when the front end of the printing plate is brought into contact with the receiving plate 30 of the stock portion 22, when the downward movement of the printing plate 12 is stopped, a considerable impact is applied to the front end of the printing plate 12. The impact may cause damage to the front end of the printing plate 12.
[0106]
On the other hand, in the stocker 10, since the hook 100 moving downward on the hook 100 slope 42 is transferred to the stopper 44 provided at the lower end portion of the slope 42, the printing plate 12 is stopped. The impact is not applied to the front end of the printing plate 12.
[0107]
Further, in the stocker 10, when the printing plate 12 is reversed toward the back plate 26 of the stock unit 22, the stopper 44 that supports the front end (lower end) of the printing plate 12 is integrally rotated, so that the printing plate Since the lower end of the printing plate 12 is transferred to the receiving plate 30, no impact is applied to the lower end of the printing plate 12 when the printing plate 12 is transferred to the stock unit 22.
[0108]
On the other hand, if the printing plate 12 is reversed with the front end of the printing plate 12 placed on the receiving plate 30 of the stock unit 22 in advance, the lower end of the printing plate 12 will be bent, and the printing plate 12 will be bent. There is a risk of causing damage such as bending or bending at the lower end of 12.
[0109]
On the other hand, in the stocker 10, the stopper 44 is provided at the lower end of the reversing unit 68, and the stopper 44 rotates integrally with the printing plate 12 with the stopper 44 supporting the lower end of the printing plate 12. In addition, the lower end portion is not curved when the printing plate 12 is reversed.
[0110]
Therefore, it is possible to stack the printing plates 12 discharged from the automatic developing device 14 in order against the back plate 26 of the stock unit 22 without causing damage such as bending or bending at the lower end of the printing plate 12.
[0111]
In addition, this Embodiment demonstrated above does not limit the structure of this invention. For example, in the present embodiment, the stocker 10 that can be separated from the slope portion 20 and the stock portion 22 has been described as an example. However, the slope portion 20 and the stock portion 22 may be an integrated printing plate stacking apparatus. In this case, the base 24 and the base 34 may be formed integrally.
[0112]
【The invention's effect】
As described above, according to the present invention, the intermediate guide portion can be attached between the placing portion and the head portion, and the operation of the moving means based on the detection result of the plate detecting means provided in the head portion is By setting according to the intermediate guide part, when stacking printing plates with a short length along the transport direction, it is possible to stack the appropriate printing plates while narrowing the installation space. can get.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a stocker applied to the present embodiment.
FIG. 2 is a perspective view of a main part showing a schematic configuration of a slide frame provided as support guide means in the stocker.
FIG. 3A is a perspective view illustrating a schematic configuration of a receiving bracket provided with a hook, and FIG. 3B is a schematic side view of a receiving guide viewed from one side orthogonal to the moving direction of a printing plate. FIG.
4A is a perspective view of a main part showing a schematic configuration of a reversing unit, and FIG. 4B is a perspective view of a main part of a support bar showing a stopper provided at the tip.
FIGS. 5A and 5B are schematic views showing the vicinity of the stopper, FIG. 5A shows the delivery of the printing plate from the hook to the stopper, and FIG. 5B shows the printing plate from the stopper to the receiving plate. Indicates delivery.
FIG. 6 is a schematic configuration diagram of a control unit provided in the stocker.
FIG. 7 is a flowchart showing an outline of printing plate accumulation processing;
FIG. 8 is a schematic perspective view of a stocker provided with two intermediate guide members.
FIG. 9 is a schematic perspective view of a stocker having one intermediate guide member.
10A is a schematic view of the stocker shown in FIG. 8 viewed from the side, and FIG. 10B is a schematic view of the stocker shown in FIG. 9 viewed from the side.
[Explanation of symbols]
10 Stocker (printing plate collecting device)
12 printing plate
14 Automatic development equipment
16 Discharge port
20 Slope section
22 Stock Department
26 Backboard
30 backing plate
36 Support frame
36A Mounting frame
42 Slope (mounting part)
50 Header
54 Intermediate guide member
56 Connecting frame
60 Bracket (Adjustment means)
62 Long hole (adjustment means)
66 Moving unit (mounting section, support guide means)
68 Reversing unit (mounting unit, reversing means)
86 Lifting motor
94 Guide
100 hooks
118 swing motor
140 Control unit
142 controller (control means)
152 Plate detection sensor (plate detection means)

Claims (2)

A printing plate stacking device that stacks a printing plate sent out from a discharge port of a printing plate processing device against a stock unit,
A placement portion that is disposed between the discharge port and the stock portion so as to face the stock portion and places the printing plate discharged from the discharge port in an inclined state;
A head portion that is arranged in the vicinity of the discharge port on the extension of the inclination of the mounting portion and guides the printing plate discharged from the discharge port to the mounting portion;
A plate detecting means provided on the head portion for detecting the printing plate discharged from the discharge port;
By moving a hook that is provided on the placement unit and that abuts on the front end in the discharge direction of the printing plate, the printing plate is moved downward along the upper surface of the placement unit while supporting the printing plate. a supporting guide means for placing the mounting portion,
Reversing means for leaning and stacking on the stock part by tilting the printing plate placed on the placing part toward the stock part;
An intermediate that is detachably provided between the head portion and the placement portion and can adjust an interval between the head portion and the placement portion according to a length of the printing plate along a discharge direction of the printing plate. A guide part;
Control means for operating the support guide means at a timing based on the detection result of the plate detection means and the interval between the placement portion and the head portion ;
A printing plate stacking apparatus comprising: Said head portion, said intermediate guide part and the printing plate stacking apparatus of the tilt angle between the head portion from the mounting section to claim 1, characterized in that it comprises adjusting means for enabling adjustment integrally.

Images