JPH09127704A - Sheet-like member carrying device and printing device using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically carry original film without necessitating large space. SOLUTION: In a state where one end of the original film S on a supply pallet 28b is attracted by the sucker 71 of a rotary body 76 and the original film S is wound by rotating the rotary body 76, it is ascended within a range right above an open area 51 where the top end of the supply pallet 28b projects out, and then the original film S wound is fed by reversely rotating the rotary body 76. Thus, the carrying width of the original film S is made enough only by the diameter dimension of the rotary body 76.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material conveying apparatus for conveying a sheet material from a predetermined position to another position, and a printing apparatus for printing an image of an original film on a photosensitive material while using the sheet material conveying device.

[0002]

2. Description of the Related Art In plate making operation, there is an operation in which an original film which is a sheet material is repeatedly printed on a photosensitive material such as a printing plate in multiple directions. In such a case, a printing apparatus generally called a plate-making machine is used, and the belt-conveying printing apparatus is also a kind of plate-making machine.

32 and 33 show a conventional belt-conveying printing apparatus. This belt-conveying printing apparatus is provided on the upper surface of a machine frame main body 1 so as to be able to move up and down, and has a printing table 2 on which a photosensitive material P such as a PS plate is placed, and a transparent plate 5 on the lower surface of an edge frame 4. A translucent frame 3 that is openable and closable with respect to the printing table 2, and a movably provided XY direction with respect to the printing table 2, hold the original film S and set it at a predetermined position on the photosensitive material P. Exhaust means for exhausting the space between the original film positioning belt 7 for positioning the original film S, the transparent plate 5 of the closed transparent frame 3 and the printing table 2 to bring the photosensitive material P and the original film S into close contact with each other ( (Not shown), a mask device (not shown) attached to the translucent frame 3, and a light source 9 for printing, and images of the original film S are multi-side printed on one photosensitive material P. Is configured.

By the way, in order to fix the original film S to the original film positioning belt 7 of the belt conveying type printing apparatus, the conventional method is as follows. First, with the printing table 2 slightly lowered, the original film positioning belt 7 is moved in the XY direction to be positioned at the reference position. Next, the printing table 2 is raised, and then the original film S is manually positioned via the positioning pins 11 on the printing table 2.
Then, the original film S is manually fixed to the original film positioning belt 7 with the adhesive tape 12.

[0005]

However, in the conventional belt-conveying printing apparatus, the original film S is manually fixed to the original film positioning belt 7 on the printing table 2, so that the operator does other processing. As long as there is no time, for example, the positioning operation of the original film S is delayed. Then, even if the operation of the next process is automated to improve the efficiency of the processing, the overall processing efficiency is deteriorated. Therefore, it is desirable to automatically convey the original film S to the printing table 2 and automate the attachment / detachment of the original film S to / from the original film positioning belt 7.

[0006] By the way, as a demand of the market surrounding the business equipment in recent years, miniaturization of the business equipment has been demanded due to the space limitation of factories and offices. Therefore,
When introducing equipment, it is difficult to fully satisfy the needs of users simply by improving work efficiency through automation, and it is important to save space as much as possible. In particular, in the case where the original film or the like is automatically conveyed as described above, the space for the automatic conveyance path becomes large, and further space saving is desired.

In view of the above-mentioned problems, the present invention provides a sheet material conveying apparatus capable of automatically conveying a sheet material without requiring a large space, and a printing apparatus capable of automatically conveying an original film using the sheet material conveying apparatus. The purpose is to provide.

[0008]

According to a first aspect of the present invention, there is provided a sheet-like material conveying device for conveying a sheet-like material from a predetermined position to another position, wherein one end of the sheet-like material is sucked to the outside. A rotating body having suction means for winding the sheet-like material, a rotating means for rotating the rotating body in a winding direction and a rewinding direction of the sheet-like material, and a sheet-like material A moving unit that moves the rotating body in the closed state between a predetermined position and another position.

According to the first aspect of the present invention, first, one end of the sheet-like article at a predetermined position is adsorbed by the adsorbing means of the rotating body, and the rotating body is rotated in the winding direction by the rotating means to form the sheet-like article. Roll it up around the rotating body. Next, in a state where the rotator has rolled up the sheet-shaped material, the rotator is moved from a predetermined position to another position by the moving means. Then, the rotating means rotates the rotating body in the rewinding direction to release the suction of the sheet-like material by the suction means. In this way, by transporting the sheet-like material in a state of being wound by the rotating body, it is sufficient to prepare only the winding diameter dimension as the width dimension of the transport space. Space saving of the sheet-shaped material conveying device can be achieved as compared with the case.

According to a second aspect of the present invention, there is provided the sheet-like article conveying apparatus according to the first aspect, wherein the sheet-like article is moved in a predetermined direction when the sheet-like article is wound and unwound by the rotating body. Air blowing means for blowing out air for floating is further provided.

According to the second aspect of the present invention, when the sheet-like material is taken up or rewound, the sheet-like material is floated and guided in a predetermined direction by the air blowing means so that the sheet-like material and the lower part thereof are guided. Friction due to contact with peripheral devices can be mitigated, and therefore no winding failure or unwinding failure occurs.

According to a third aspect of the present invention, there is provided the sheet-like material conveying device according to the first or second aspect, wherein the sheet-like material around the rotating body is placed on the sheet-like material when the sheet-like material is wound up. It further comprises a cover sheet member that is stacked and wound up.

According to the third aspect of the present invention, at the time of winding the sheet-shaped material, the cover sheet member is wound so as to cover the sheet-shaped material, so that the cover sheet member can be pressed against the rotating body. , The sheet does not come off the rotating body.

A fourth aspect of the present invention is the sheet conveying apparatus according to any one of the first to third aspects, wherein the rotating body has three or more apex portions protruding in the outer peripheral direction. .

In the invention according to claim 4, when a sheet-like material that is doubly attached is wound around the rotating body, the sheet-like material bends while being in contact with the top of the rotating body. A gap is formed between the sheet-like material and the portion other than the top of the rotating body. Here, when the double sheet-shaped material is wound, the outer sheet-shaped material and the inner sheet-shaped material have different diameters from each other, so that the inner sheet-shaped material is bent, but the bending portion is , Can be released into a gap formed between the sheet-like material and a portion other than the top of the rotating body.
Thereby, peeling of the attached sheet-like material can be prevented.

According to a fifth aspect of the present invention, there is provided a printing apparatus for printing an image of an original film on a photosensitive material, the printing table on which the photosensitive material is placed, and the printing table arranged below the printing table.
It has a pallet that can move horizontally from the position directly below the printing table and that stores the original film, and an adsorption means that adsorbs one end of the original film to the outside, and the original film can be wound up. A rotating body, a rotating means for rotating the rotating body in the winding direction and the rewinding direction of the original film, and above the pallet when the pallet is horizontally moved from a position directly below the printing table. First moving means for moving the rotating body in the vertical direction, and second moving means for moving the rotating body in the horizontal direction on the printing table.

In the invention described in claim 5, when the original film is supplied to the printing table on which the photosensitive material is placed, first, the pallet is moved horizontally from a position directly below the printing table,
The suction means of the rotating body sucks one end of the original film stored in the pallet, and the rotating means rotates the rotating body in the winding direction to wind the original film around the rotating body. Next, with the rotator winding up the original film, the first moving means moves up the rotator, and the second moving means moves the rotator horizontally on the printing table. Then, the rotating means rotates the rotating body in the rewinding direction to release the suction of the original film by the suction means and place the original film on the printing table.

On the other hand, when the original film is discharged from the printing table, the suction means of the rotating body sucks one end of the original film placed on the printing table, and the rotating means winds the rotating body in the winding direction. Rotate and wind the original film around the rotating body. Next, the second moving means moves the rotating body in the horizontal direction on the printing table, and the first moving means lowers the rotating body while the rotating body winds up the original film. Then, the rotating member is rotated in the rewinding direction by the rotating unit, the suction of the original film by the suction unit is released, and the original film is stored in the pallet. In this way, by transporting the original film in a state of being wound on the rotating body, it is sufficient to prepare only the dimension of the winding diameter as the width dimension of the transport space, and the transport path is limited to the space above the open area. It can be transported without any problem. Therefore, compared with the case where the original film is conveyed in the unfolded state, the space of the printing apparatus can be saved.

According to a sixth aspect of the present invention, in the printing apparatus according to the fifth aspect, air for lifting the original film in a predetermined direction when the original film is wound and rewound by the rotating body is used. An air blowing means for blowing the air is further provided.

According to the sixth aspect of the invention, when the original film is wound or rewound, the original film is levitated in a predetermined direction by the air blowing means to guide the original film.
Friction due to contact between the original film and the printing table or pallet can be alleviated, and therefore no winding failure or unwinding failure occurs.

The invention according to claim 7 is the printing apparatus according to claim 5 or 6, wherein when the original film is wound, the original film around the rotating body is superposed and wound up. Further provided is a cover sheet member.

In the invention described in claim 7, when the original film is wound, the cover sheet member is wound so as to cover the original film, so that the cover sheet member can be pressed against the rotating body. The film does not come off the rotating body.

The invention according to claim 8 is the printing apparatus according to any one of claims 5 to 7, wherein the rotating body has three or more apex portions protruding in the outer peripheral direction. .

In the invention described in claim 8, when a double-coated original film is wound around a rotating body, the original film is curved while being in contact with the top of the rotating body. A gap is formed between the original film and a portion other than the top portion of. Here, when the double original film is wound, since the outer original film and the inner original film have different diameters from each other, the inner original film is warped, but the flexed portion is of the rotating body. It can escape into the gap formed between the original film and the portion other than the top. Thereby, peeling of the attached original film can be prevented.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION

<Structure> FIG. 1 is an external perspective view showing a belt conveying type printing apparatus according to an embodiment of the present invention, and FIGS. 2 and 3 are views showing the internal structure thereof. The belt-conveying printing apparatus of the present invention multi-side prints an image of a sheet-shaped original film S on a photosensitive material P such as a PS plate. As shown in FIG. 1 to FIG. 23, an original film positioning belt 24 for parallelly moving the original film S on the photosensitive material P by moving the original film S in parallel in the XY direction while adhering the original film S, and an image of the original film S is exposed. A light source 25 that is movable in the X direction for printing on the material P, a translucent frame 27 having a translucent plate 26 that opens and closes with respect to the printing table 23 and transmits the light from the light source 25 to the original film S, and the printing table. The original film S arranged below 23
Pallets 28a, 28b, 28c for mounting the
A film supply / discharge means 29 for transferring and carrying the original film S between the pallets 28a, 28b, 28c and the original film positioning belt 24 is provided.

The baking table 23 is made of an aluminum plate having a plate thickness of about 5 mm, and is supported by a lifting cylinder 32 shown in FIGS. Here, the printing table 23 can be moved up and down by lowering the printing table 23 when the original film S is conveyed, so that the original film S held by the original film positioning belt 24 is moved to the printing table 23. This is because they are relatively separated from each other, and air is blown into the lower surface side of the original film S by an air nozzle (not shown) to float and convey the original film S.

FIG. 4 is a plan view of the printing table 23. As shown in FIG. 4, a first positioning pin 33 (for positioning by fitting into a pin hole (not shown) of the photosensitive material P at a required position on the front end portion (right side in FIG. 4) of the printing table 23 ( Four locations) and second positioning pins 34 (three locations) for fitting and positioning in pin holes (not shown) of the original film S are planted so as to be retractable. Both positioning pins 33 and 34 are controlled to appear and disappear by solenoids 152 and 153 (FIG. 10). Further, first suction cups 35 (six places) for adsorbing the photosensitive material P are attached near the first positioning pin 33, and the original film S is adsorbed near the second positioning pin 34. Second suction cups 36 (4 places) for
Is attached. Further, an exhaust hole 37 is formed in a corner of the rear end portion (left side in FIG. 4) of the printing table 23 for vacuum-contacting the photosensitive material P and the original film S on the printing table 23. A vacuum pump 145 (Fig. 10)
It is connected to.

The original film positioning belt 24 is formed of, for example, a metal endless belt having a plate thickness of about 0.2 mm,
As shown in FIG. 3, it is stretched on a pair of pulleys 41 arranged at both left and right ends of the printing table 23. As a mechanism for moving the original film positioning belt 24 in the left-right direction (X direction), as shown in FIG. 3, a ball screw mechanism 41a including a screw shaft, a nut, and a rolling ball, and a rotation mechanism for rotating the ball screw mechanism 41a. A motor 41b is provided. The pulley 41 is driven by the drive mechanism 44 shown in FIG.
The original film positioning belt 24 is provided so as to be movable in the front-rear direction (Y direction) while being stretched. As shown in FIG. 2, the drive mechanism 44 includes a loading platform 45 that supports the pulley 41 from below and a loading platform 4 including a screw shaft, a nut, and rolling balls.
A ball screw mechanism 46 for moving 5 in the front-rear direction, a drive motor 47 for rotating the ball screw mechanism 46,
A pulley 47a pivotally supported by the ball screw mechanism 46,
A belt 47b for transmitting the driving force of the driving motor 47 to the pulley 47a. With this structure, the original film S attached to the original film positioning belt 24 is
The photosensitive material P on the printing table 23 is planarly moved in the X-Y directions and positioned at a predetermined position. An adhesive tape 111 (FIG. 9) of an attaching mechanism 62 described later is attached to the original film positioning belt 24, and as shown in FIG. 4, attaching holes 42 (8 places) for exposing the adhesive surface downward.
And the escape hole 43 corresponding to the second positioning pin 34.
(7 places) are formed.

As shown in FIG. 2, the translucent frame 27 is openably and closably supported by a pair of air cylinders 48 so that the baking frame 23 can be appropriately switched between an open position Fo and a closed position Fc. In the open position Fo, the photosensitive material P and the original film S are exchanged (full open position) and the original film S is positioned with respect to the photosensitive material P (half open position).
The vacuum pump 145 (FIG. 10) is operated in the closed position Fc so that the photosensitive material P and the original film S can be brought into close contact with each other.

The pallets 28a, 28b, 28c are provided from the top in the order of a discharge pallet 28a, a common pallet 28c, and a supply pallet 28b. Supply pallet 28
In FIG. 2B, the original film S to be supplied to the printing table 23 by the film supplying / discharging means 29 is preliminarily loaded and prepared.
By projecting to the left side) of the original film S, an open area 51 (FIG. 2) for adsorbing one end of the upper surface of the original film S is formed by the adsorption means 71 described later. This supply pallet 28
Positioning pins 53, which perform positioning by being fitted in pin holes (not shown) of the original film S, are formed in b so as to project upward.

The discharge pallet 28a is for loading the original film S discharged from the printing table 23 by the film supply / discharge means 29. Also, common pallet 28c
Is used for either supply or discharge of the original film S as required. Both pallets 28a,
As shown in FIG. 5, the wheel 28c is attached with wheels 57 for allowing the rails 56 to move back and forth, and an air cylinder 58 provided at the rear of the wheel 28c allows the position immediately below the baking table 23 and the end of the baking table 23. It is configured so that it can be switched to a position projecting outward (to the left side) from a position corresponding to the portion, that is, a position similar to the supply pallet 28b. The pallets 28a and 28c are formed with positioning pins 59 that fit into pin holes (not shown) of the original film S and project upward.

The film supply / discharge means 29 is the pallet 2
8a, 28b, 28c and the printing table 23, a transport mechanism 61 (FIG. 2) for transporting the original film S, and the original film S on the printing table 23.
4 is provided with a sticking mechanism 62 (FIG. 9) and a peeling mechanism 63 (FIG. 6) for peeling the original film S from the original film positioning belt 24.

The transport mechanism 61, as shown in FIG. 2, has suction means 71 for sucking and holding one end of the original film S, and
The winding means 72 for winding the original film S sucked by the suction means 71, and the open area 5 of the supply pallet 28b.
In order to perform the winding and rewinding while moving the suction means 71 and the winding means 72 above the No. 1 between the printing table 23 and the supply pallet 28b, and the original film S floating in a predetermined direction. Air nozzle 7
4 is provided.

As the suction means 71, a general suction cup made of rubber or the like is used, and a plurality of suction means 71 are arranged at the top of one of the rotating bodies 76 (FIG. 6) described later.

The winding means 72, as shown in FIG.
3, a transport head 75 that is supported so as to be movable in the horizontal direction, and a rotating body 76 that is pivotally supported by the transport head 75 so as to wind up the original film S adsorbed by the adsorbing means 71 as shown in FIG. And a rotating means 77 (FIG. 10) which is fixed to the transport head 75 and rotates the rotator 76 in both forward and backward directions so as to wind up the original film S or rewind the original film S that has been wound up.

As shown in FIG. 6, the rotating body 76 is formed by bending a metal plate or the like so that its cross-sectional shape is a shape having three or more apexes, specifically, a triangular tube shape. There is.
Adsorption means 71 is attached to one top of the rotating body 76, and pressing means 112 to be described later is provided in the vicinity of the adsorption means 71 of the rotating body 76. Here, when the rotating body 76 is formed in a triangular tube shape, when the original film having a structure in which the original film f2 is attached to the base film f1 is used, the inside base film f1 and the outside original when being wound are used. This is because the diameter of the base film f1 is different from that of the film f2, so that a space for the inner base film f1 to escape inward is secured as shown in FIG. Further, as shown in FIG. 6, the rotating shaft 81 is pivotally supported by the transport bed 75 at the inner center of the rotating body 76, and the power of the rotating means 77 is transmitted to the end portion of the rotating shaft 81 by the belt 82. The pulley 83 of is fixed.

In the front of the rotary member 76 of the transport head 75, when the original film S is wound, it is wound so as to cover the original film S and presses the original film S to prevent the cover from coming off. A seat 84 is provided. One end of the cover sheet 84 is fixed by a pin 76b to a top 76a of the top of the rotating body 76, which is positioned in the rotational direction from the top where the suction means 71 is attached, and the other end of the cover sheet 84 is the take-up roller 85. It is pressed against by a spring (not shown). The central portion of the cover sheet 84 is pushed downward by the auxiliary roller 86.

A motor for forward and reverse rotation is used as the rotating means 77 (FIG. 10), and is connected to the pulley 83 of the rotating body 76 via the belt 82.

The moving means 73 includes an elevating means 91 for moving the carrying head 75 up and down, and a first horizontal moving mechanism 92 for moving the carrying head 75 in the front-back direction (Y direction) with respect to the lifting means 91. The elevating means 91 itself is the machine frame main body
And a second horizontal movement mechanism 93 that moves in the front-rear direction (Y direction).

The elevating means 91, as shown in FIGS. 2 and 8,
Support 95 fixed to a part of the lower surface of the transport head 75
And the rack 96 fixed to the support 95, and the machine frame main body 3
1, a pinion 97 that is rotatably supported by a shaft 1 and that engages with a rack 96, a motor 97a that rotates the central axis of the pinion 97 in forward and reverse directions, and a machine frame body 3 whose upper half is a cover portion.
The auxiliary air cylinder 98 is fixed to No. 1 and the tip of the telescopic rod 98a is connected to the lower end of the transport head 75 so that the transport head 75 can be smoothly moved up and down.

The first horizontal moving mechanism 92 is, as shown in FIG.
A rack 101 arranged so as to extend in the front-rear direction and fixed to a support body 95 of the elevating means 91, and a pinion 1 that is rotatably supported by a transport head 75 and engages with the rack 101.
02, a forward / reverse rotation motor 102a for rotating the pinion 102 in forward and reverse directions, and a belt 102b. The forward / reverse rotation motor 102a and the rotating means 77 are provided in parallel in the direction perpendicular to the paper surface in FIG.

As shown in FIGS. 2 and 8, the second horizontal moving mechanism 93 is fixed to the machine frame main body 31 and the telescopic rod 103a whose tip is connected to the rear end surface of the support 95 of the elevating means 91. The air cylinder 103 is configured to expand and contract the expandable rod 103a so as to move the support body 95 in the front-rear direction (Y direction).

The air nozzle 74, as shown in FIG.
By preventing the original film S from being bent when wound around 6, and by rewinding the wound original film S and blowing it out onto the printing table 23, air is blown to the lower surface of the original film S to make it rise. The leading edge of the original film S is efficiently guided in the feeding direction. The air nozzle 74 is disposed below the front of the rotating body 76 of the transport head 75, and the air outlet is directed rearward. Below the air nozzle 74, a guide 105 for auxiliary guiding the leading edge of the original film S is provided. This guide 105 is an original film S
Since it becomes a hindrance when it is wound around the rotating body 76, it has a structure in which it is slid forward and pulled in (left side in FIG. 6).

As shown in FIG. 9, the sticking mechanism 62 has an adhesive tape 111 attached to the original film positioning belt 24.
And a pressing means 112 for pressing the adhesive tape 111 against the original film S.

The adhesive tape 111 is a resin film coated with an adhesive on one surface thereof, and can withstand attachment and detachment of about 100 times. As shown in FIG. 9, the adhesive tape 111 is used by being attached around the attaching hole 42 of the original film positioning belt 24 with its adhesive surface facing downward.

The pressing means 112 is composed of a cylindrical base portion and a rubber member provided at the tip of the base portion, and as shown in FIGS. 6 and 9, the top portion of the rotating body 76 to which the suction means 71 is attached. It is arranged in the vicinity. This pressing means 11
2 has a function of pressing the adhesive tape 111 facing downward from the sticking hole 42 of the original film positioning belt 24 to the original film S side as shown in FIG. Have.

As shown in FIG. 6, the peeling mechanism 63 includes a blade (remover) 121 inserted between the original film positioning belt 24 and the original film S, and a blade 121.
Blade traveling means 122 for traveling along the original film positioning belt 24.

The blade 121 is formed in a substantially claw shape, and an escape groove 123 is formed on the lower surface of the blade 121 to avoid contact with the second positioning pin 34 when traveling above the printing table 23. Has been done. This blade 121
Are urged downward by the spring mechanism 124 with respect to the blade traveling means 122. The reason why the bias is applied in this manner is that when the original film S is peeled from the original film positioning belt 24, the blade 121 is placed in a natural state and is positioned below the suction means 71 to the lower surface side of the original film S. This is because it can be inserted, and when the suction means 71 is pressed against the original film S on the lower side to adsorb it, the blade 121 is brought into contact with the original film S and relatively escapes to the upper side.

The blade running means 122 has a pair of pulleys 126a and 126b (FIG. 3) as shown in FIGS.
A blade traveling motor 125 having a rotating shaft fixed to a pulley 126a, a wire 127 stretched between the pulleys 126a and 126b, and a support member 128 fixed to a part of the wire 127 and supporting the blade 121. It is configured.

Reference numeral 131 in FIG. 1 is a front door, reference numeral 1
Reference numeral 32 is a window provided in the front door, reference numeral 134 is an operation panel, and reference numeral 135 is an opening portion for loading / unloading the original film S to / from the pallets 28a, 28b, 28c.

FIG. 10 is a diagram showing the control system of each part in this embodiment. In FIG. 10, reference numeral 142 is a control unit having a computer having a CPU, ROM, RAM, etc., reference numeral 143 is a display unit, reference numeral 144 is an external memory for storing data and the like, and reference numeral 145 is a vacuum pump as an exhaust device. . Further, reference numerals 146 to 15 in FIG.
1 is a solenoid valve for driving the air nozzle 74, the lift cylinder 32, and the air cylinders 48, 58, 98, 103, and reference numerals 152 to 154 are the first positioning pin 33 and the second positioning pin 34. , And Guide 1
This is a solenoid for driving 05.

<Operation> (Operation of supplying original film) The operation of supplying the original film of the belt-conveying printing apparatus having the above-mentioned structure will be described with reference to steps S1 to S22 of the flowchart of FIG. First, the rod of the air cylinder 58 is shortened to pull the discharge pallet 28a and the common pallet 28c rearward (right side in FIG. 2), and the lifting means 91, the first horizontal movement mechanism 92, and the second horizontal movement mechanism 93 are used. By arranging the transport head 75 at a predetermined position, initial settings relating to the arrangement relationship of each part are performed (step S1). At this time,
The printing table 23 is in a lowered state, the original film positioning belt 24 is located rearward of the first positioning pin 34,
The guide 105 is retracted.

Next, as shown in FIG. 12, the conveying head 75 is lowered by the elevating means 91 and is arranged directly above the open area 51 of the supply pallet 28b (step S2). Then, the original film S is adsorbed by the adsorbing means 71 (step S3), and in the adsorbed state, the transport head 75 is moved by 1 to 2c.
It is raised by about m (step S4). At this time, the air nozzle 74 starts blowing air to float the original film S from the supply pallet 28b (step S5).

Then, as shown in FIG. 13, the rotator 76 is rotated in the forward direction to wind up the original film S (step S).
6). When the winding is completed, the blowing of air by the air nozzle 74 is stopped (step S7).

Next, as shown in FIG. 14, the conveying head 75 is raised by the elevating means 91 to be arranged above the printing table 23 (step S8), and the first horizontal movement mechanism 92 and the second horizontal movement are performed. The transport head 75 is moved backward (to the right in FIG. 2) by the mechanism 93 (step S
9) Correspond the position of the pin hole (not shown) of the original film S and the position of the second positioning pin 34.

Thereafter, the air nozzle 74 starts blowing air (step S10), and at the same time, the guide 10
5 is projected (step S11). And the rotating body 7
The original film S is rewound by rotating 6 in the opposite direction (step S12). Then, the original film S is guided rearward between the printing table 23 and the original film positioning belt 24 by the air from the air nozzle 74 and the guide 105. The state at this time is shown in FIG.

Then, the conveying head 75 is lowered onto the printing table 23 by the elevating means 91 (step S13),
The second positioning pin 34 is projected upward from the upper surface of the printing table 23 and fitted into a pin hole (not shown) of the original film S. Further, the original film S is sucked by the second suction cup 36 of the printing table 23 (step S14), and
Release the suction by the suction means 71 on the transport head 75 side,
Then, the transport head 75 is raised (step S1).
5).

Then, as shown in FIG. 16, the original film positioning belt 24 is moved to a position where the original film S is supplied, that is, a space between the rotating body 76 and the second positioning pin 34 (step S16), and is moved up and down. The printing table 23 is raised by the cylinder 32 (step S17). In this state, the second positioning pin 34 is retracted below the printing table 23 (step S18), and the rotator 76 is slightly rotated in the forward direction to move the pressing means 112 to the adhesive tape in the original film positioning belt 24. It is placed on 111 (step S19). Then, as shown in FIG. 17, the transport head 75 is lowered, and the adhesive tape 111 is pressed against the original film S by the pressing means 112, and the original film S is pressed.
Is adhered to the original film positioning belt 24 (step S20). At the same time, the suction of the original film S by the second suction cup 36 of the printing table 23 is released (step S2).
1).

Then, the carrying head 75 is moved up and down by the lifting means 91.
By the first horizontal moving mechanism 92 and the second horizontal moving mechanism 93, and after moving forward by the elevating means 91, the printing table 25
The original film supply operation is completed by retracting from the top (step S22). After that, a predetermined baking operation may be performed.

(Original Film Ejecting Operation) Next, the original film ejecting operation of the belt conveying type printing apparatus will be described with reference to steps P1 to P21 of the flowchart of FIG. First, the rod of the air cylinder 58 is shortened so that the discharge pallet 28a and the common pallet 28c are rearward (see FIG.
(The right side of the), and by arranging the transport head 75 at a predetermined position by the elevating means 91, the first horizontal moving mechanism 92, and the second horizontal moving mechanism 93, initial setting regarding the positional relationship of each part is performed ( Step P1). In addition,
In this initial setting, the original film positioning belt 24
Is located on the second positioning pin 34, and the printing table 23 is in the lowered state.

Then, the conveying head 75 is moved by the elevating means 91, the first horizontal moving mechanism 92 and the second horizontal moving mechanism 93, and the blade 121 is moved to the original film positioning belt 24 as shown in FIGS. 19 and 20. The blade 121 is inserted into the lower surface (step P2), and the blade 121 is run by the blade running means 122 (step P3). At this time, as shown in FIG. 6, since the escape groove 123 is formed in the lower surface of the blade 121, the second positioning pin 34
It is possible to avoid contact with. At this time, the original film S falls on the printing table 23, and the pin holes (not shown) of the original film S are fitted into the second positioning pins 34.

Then, the original film positioning belt 24
Is retracted (step P4), the transport head 75 is lowered toward the printing table 23 by the elevating means 91 (step P5), and the original film S is adsorbed by the adsorbing means 71 (step P6). At the same time, the second positioning pin 34 is retracted to the lower side of the printing table 23, and further, as shown in FIG.
As shown in FIG.
7). Then, the air nozzle 74 starts blowing air (step P8), and the rotating body 76 is rotated in the forward direction to wind up the original film S (step P8).
9). Then, the blowing of air by the air nozzle 74 is stopped (step P10).

Then, as shown in FIG. 22, the transfer head 75 is moved forward (step P11), and the air cylinder 58 is moved.
Is driven to move the discharge pallet 28a forward, and the discharge pallet 28a is arranged at the same position as the supply pallet 28b (step P1).
2). Then, the transport head 75 is lowered above the discharge pallet 28a (step P13).

At this point, the air nozzle 74 starts blowing air (step P14), the guide 105 is projected rearward (step P15), and the rotating body 76 is rotated in the opposite direction to rotate the original film S. Is rewound (step P16). The state at this point is shown in FIG.

Thereafter, the transport head 75 is lowered to a position directly above the discharge pallet 28a (step P17), air blowing by the air nozzle 74 is stopped (step P18), and at the same time, the original film S by the suction means 71.
Is canceled (step P19). And in FIG.
As described above, the transport head 75 is lifted up and retracted (step P20), and the discharge pallet 28a is retracted (step P21), and the original film discharge operation is completed.

As described above, the film supply / discharge means 29
Thus, since the original film S is automatically transferred and conveyed between the pallets 28a, 28b, 28c and the original film positioning belt 24, compared with the conventional example in which the original film is manually attached to the original film positioning belt, Installation efficiency can be dramatically improved.

Further, by winding and conveying the original film S, it is possible to suffice only the winding diameter for the conveying space, and therefore even a large area of the original film S does not require a large conveying space. Can be transported.

(Original Film Exchange Operation) Further, the original film exchange operation of the belt transport type printing apparatus will be described. The exchange operation is the original film discharge operation described in the flowchart of FIG. 18 (steps P1 to P21).
After that, it can be achieved by performing the supply operation (steps S1 to S22) described in the flowchart of FIG. 11, but the raising / lowering operation of the transport head 75 is two reciprocations. In this embodiment, as shown in FIG. 25, the transfer head 75 can be replaced in a short time by raising and lowering the transfer head 75 in about one reciprocation.
It operates according to steps T1 to T6 of the flowchart of FIG.

That is, first, the original film S that has been printed on the adhesive tape 111 of the original film positioning belt 24 is printed.
After initial setting in the state where
1), the same processing as steps S2 to S15 of the above-described supply operation is performed to transfer a new original film S to the transport head 75.
Is set on the printing table 23 (step T2).
This state is shown in FIG. In FIG. 26, So represents a printed original film, and Sn represents a new original film.

Next, the original film positioning belt 24 is moved to the supply position (step T3), and the same processing as steps P2 to P11 of the discharging operation described above is carried out to peel off the original film So which has been baked to remove it from the baking table. Drop it on 23,
It is wound around the rotating body 76 (step T4). This state is shown in FIG.

Then, step S1 of the above-mentioned supply operation.
The same process as 6 to S22 is performed, and a new original film Sn is attached to the original film positioning belt 24 (step T5). The pressing means 112 is the original film S.
Hold o as wound up. This state is shown in FIG. After that, steps P12 to P of the discharging operation described above are performed.
The same process as 21 is performed, and the printed original film So wound on the rotating body 76 is discharged to the discharge pallet 28a (step T6), and the replacement operation of the original film is completed.

As described above, since the raising / lowering operation of the transport head 75 can be completed in about one reciprocation in the replacement work of the original film S, the replacement work can be carried out in a short time.

<Modification> (1) In the above embodiment, the triangular drum was used as the rotating body 76, but as shown in FIG. What if the cross-sectional shape has a top with three or more points, such as a square drum, a Y-shaped section as shown in FIG. 31, a pentagonal drum, a cross-shaped section, etc. It may be anything.

(2) In the above embodiment, when the original film S is replaced, as shown in FIGS.
The original plate film So that has already been baked is stacked on the new plate film Sn on the baking plate 23, but the new plate film Sn is stacked on the original plate film So that has been baked on the printing plate 23. You may.

[0075]

According to the first aspect of the present invention, when the sheet-like material is conveyed, one end of the sheet-like material at a predetermined position is adsorbed by the adsorbing means, and the rotating means is wound in the winding direction by the rotating means. Since the sheet is rotated to wind up the sheet, and the moving means moves the rotating body to convey the rolled sheet to another position, the width of the conveying space is limited to the winding diameter. Therefore, it is possible to save the space of the sheet material conveying device as compared with the case where the sheet material is conveyed in the unfolded state.

According to the second aspect of the invention, since the sheet-like material is floated and guided in the predetermined direction by the air blowing means, when the sheet-like material is wound or unwound, the sheet-shaped material is guided. Friction due to contact between an object and peripheral equipment therebelow can be mitigated, and therefore damage to winding and unwinding can be prevented.

According to the third aspect of the present invention, when the sheet-shaped material is wound, the cover-sheet member is wound so as to cover the sheet-shaped material. You can hold it down,
It is possible to easily prevent the sheet-like material from coming off the rotating body.

According to the fourth aspect of the present invention, since the rotating body is provided with three or more apex portions projecting in the outer peripheral direction, the sheet-like material which is doubly attached is the rotating body. At the time of winding the sheet, the sheet-like material can be curved while being in contact with the top of the rotating body to form a gap between the sheet-like material and a portion other than the top of the rotating body. Then, when the double sheet-shaped material is wound, since the outer sheet-shaped material and the inner sheet-shaped material have different diameters from each other, the inner sheet-shaped material is bent, but the bending portion is It can escape into the gap formed between the sheet-like material and the portion other than the top of the rotating body. Therefore, peeling of the attached sheet-like material can be prevented.

According to the fifth aspect of the present invention, when the first moving means conveys the rotating body in the vertical direction, the pallet is moved above the pallet when moved horizontally from the position directly below the printing table. Move the rotating body up and down, and
Since the original film is conveyed while being wound by the rotating body, it is sufficient to prepare only the winding diameter as the width of the conveying space, and even if the conveying path is limited to the space above the open area. Can be transported without any problem. Therefore, compared with the case where the original film is conveyed in the unfolded state, the space of the printing apparatus can be saved.

According to the invention described in claim 6, since the original film is configured to be floated and guided in a predetermined direction by the air blowing means, when the original film is taken up or rewound, Friction due to contact with the printing table or pallet can be mitigated, and therefore damage to winding and unwinding can be prevented.

According to the invention described in claim 7, since the cover sheet member is covered with the original film and wound up, the cover sheet member is pressed against the rotating body at the time of winding the original film. Therefore, the original film can be easily prevented from coming off the rotating body.

According to the eighth aspect of the invention, since the rotating body is provided with three or more apex portions projecting in the outer peripheral direction, an original film formed by laminating two sheets on top of each other is provided. When the film is wound around the rotating body, the original film bends while being in contact with the top of the rotating body, so that a gap can be formed between the original film and a portion other than the top of the rotating body. Then, since the outer original film and the inner original film have different diameters from each other, the inner original film is bent, but such a bent portion is formed between the original film and a portion other than the top of the rotating body. You can let it escape into the gap. Therefore, peeling of the attached original film can be prevented.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a printing apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing an internal mechanism of the printing apparatus according to the embodiment of the present invention.

FIG. 3 is a diagram showing an internal mechanism of the printing apparatus according to the embodiment of the present invention.

FIG. 4 is a plan view showing a printing table and an original film positioning belt of the printing apparatus according to the embodiment of the present invention.

FIG. 5 is a diagram showing a pallet and an air cylinder of the printing apparatus according to the embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a winding means of the printing apparatus according to the embodiment of the present invention.

FIG. 7 is a diagram showing a state in which the sticking film is wound around the rotating body in the printing apparatus according to the embodiment of the present invention.

FIG. 8 is a diagram showing an elevating means of the printing apparatus and an air cylinder of the second horizontal movement mechanism according to the embodiment of the present invention.

FIG. 9 is a sectional view showing an original film positioning belt of the printing apparatus according to the embodiment of the present invention.

FIG. 10 is a diagram showing a control system of the printing apparatus according to the embodiment of the present invention.

FIG. 11 is a flowchart showing the operation of supplying the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 12 is a diagram showing an operation of supplying the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 13 is a diagram showing an operation of supplying the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 14 is a diagram showing an operation of supplying the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 15 is a diagram showing an operation of supplying the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 16 is a diagram showing an operation of supplying the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 17 is a diagram showing an operation of supplying the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 18 is a flowchart showing an operation of discharging an original film in the printing apparatus according to the embodiment of the present invention.

FIG. 19 is a diagram showing an operation of discharging the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 20 is a diagram showing an operation of discharging the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 21 is a diagram showing an operation of discharging the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 22 is a diagram showing an operation of discharging the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 23 is a diagram showing an operation of discharging the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 24 is a diagram showing an operation of discharging the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 25 is a flowchart showing the operation of exchanging the original film in the printing apparatus according to the embodiment of the present invention.

FIG. 26 is a diagram showing an original film replacement operation in the printing apparatus according to the embodiment of the present invention.

FIG. 27 is a diagram showing an original film exchange operation in the printing apparatus according to the embodiment of the present invention.

FIG. 28 is a diagram showing an original film replacement operation in the printing apparatus according to the embodiment of the present invention.

FIG. 29 is a diagram showing a modification of the rotating body of the present invention.

FIG. 30 is a diagram showing another modification of the rotating body of the present invention.

FIG. 31 is a diagram showing still another modification of the rotating body of the present invention.

FIG. 32 is a perspective view showing a conventional printing apparatus.

FIG. 33 is a plan view showing a printing table and an original film positioning belt of a conventional printing apparatus.

[Explanation of symbols]

 23 Printing Plate 24 Original Film Positioning Belt 25 Light Source 28a Ejection Pallet 28b Supply Pallet 28c Common Pallet 29 Film Supply and Ejection Means 32 Elevating Cylinder 41 Pulley 41a Ball Screw Mechanism 41b Rotation Motor 42 Adhesion Hole 44 Drive Mechanism 45 Loading Platform 46 Ball Screw Mechanism 47 Drive Motor 47a Belt 47b Pulley 48 Air cylinder 57 Wheel 58 Air cylinder 61 Conveying mechanism 62 Sticking mechanism 63 Peeling mechanism 71 Adsorbing means 72 Winding means 73 Moving means 74 Air nozzle 75 Conveying head 76 Rotating body 77 Rotating means 81 Rotating shaft 82 Belt 83 Pulley 84 Cover Sheet 85 Winding Roller 86 Sub-Roller 91 Lifting Means 92 First Horizontal Moving Mechanism 93 Second Horizontal Moving Mechanism 95 Support 96 Rack 97 Pinion 9 a motor 98 air cylinder 98a telescopic rod 101 rack 102 pinion 102a forward / reverse rotation motor 102b belt 103 air cylinder 103a telescopic rod 105 guide 111 adhesive tape 112 pressing means 121 blade 122 blade running means 125 blade running motor 126a, 126b pulley 127 Wire 128 Supporting member 142 Control unit P Photosensitive material S Original film

[Procedure amendment]

[Submission date] February 2, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

[Fig. 2]

[Figure 5]

FIG. 7

FIG. 9

FIG.

FIG. 13

FIG. 14

FIG.

FIG.

FIG. 29

FIG. 30

FIG. 31

[Figure 3]

FIG. 4

[Figure 8]

FIG. 16

FIG.

FIG.

FIG. 21

FIG.

FIG. 26

FIG. 6

FIG. 10

FIG. 11

FIG. 23

FIG. 24

FIG.

FIG. 25

FIG. 27

FIG. 28

FIG. 32

FIG. 33

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shoichi Shimizu 1 465 Kuze Tsukiyama-cho, Minami-ku, Kyoto-shi, Kyoto Prefecture Dai-Nippon Screen Mfg. Co., Ltd., Kuze Plant (72) Inventor Kenji Watanabe Minami-ku, Kyoto-shi, Kyoto 1 465 Kuse Tsukiyama-cho 1 Dai Nippon Screen Mfg. Co., Ltd. in Kuze Plant (72) Inventor Masaharu Nakagawa 1 465 Kuse Tsukiyama-cho Minami-ku, Kyoto Prefecture Kyoto Prefecture 1 Dai Nippon Screen Mfg. Co., Ltd. in Kuze Plant (72) Inventor Makoto Gota 1 465 Kuze Tsukiyama-cho, Minami-ku, Kyoto-shi, Kyoto Prefecture Dai-Nippon Screen Mfg. Co., Ltd.'s Kuze Plant

Claims (8)

[Claims] 1. A sheet-like material conveying device for conveying a sheet-like material from a predetermined position to another position, which has an adsorbing means for adsorbing one end of the sheet-like material to the outside, and the sheet-like material. A rotating body capable of winding the sheet-like object, rotating means for rotating the rotating body in a winding direction and a rewinding direction of the sheet-like object, A sheet-shaped material conveying device, comprising: 2. The sheet-like material conveying device according to claim 1, wherein air is blown out to lift the sheet-like material in a predetermined direction when the sheet-like material is wound and unwound by the rotating body. A sheet material conveying device further comprising air blowing means. 3. The sheet-like material conveying device according to claim 1, wherein the cover is overlapped and rolled up on the sheet-shaped material around the rotating body when the sheet-shaped material is wound up. A sheet-shaped material conveying device further comprising a sheet member. 4. The sheet-like material conveying device according to claim 1, wherein the rotating body has three or more apex portions projecting in an outer peripheral direction. Object transport device. 5. A printing apparatus for printing an image of an original film on a photosensitive material, comprising: a printing table on which the photosensitive material is placed; a printing table arranged below the printing table, and horizontally from a position directly below the printing table. A rotator that is movable and that has a pallet for accommodating the original film, and a suction means that adsorbs one end of the original film on the outside, and that is capable of winding the original film; Rotating means for rotating in the winding direction and the rewinding direction, and for moving the rotating body in the vertical direction above the pallet when the pallet is moved horizontally from a position directly below the printing table, A printing apparatus comprising: a moving unit No. 1 and a second moving unit that horizontally moves the rotating body on the printing table. 6. The printing apparatus according to claim 5, further comprising air blowing means for blowing air to lift the original film in a predetermined direction when the original film is wound and rewound by the rotating body. A printing device equipped. 7. The printing apparatus according to claim 5 or 6, further comprising a cover sheet member that is wound on the original film around the rotating body so as to be wound up when the original film is wound up. Printing device. 8. The printing apparatus according to any one of claims 5 to 7, wherein the rotary body has three or more apex portions protruding in the outer peripheral direction.