JPH07444Y2 - Sensitive material attaching / detaching device for drum type image scanning recording device - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention applies to a photosensitive material (hereinafter, referred to as a raster plotter for a printed wiring board or a color scanner for plate making).
Sensitive material) is wound around a rotary drum to perform scanning exposure, and in particular, the photosensitive material is automatically mounted on the rotary drum, and the photosensitive material is automatically transferred from the rotary drum after completion of the scanning exposure. The present invention relates to a photosensitive material attaching / detaching device configured to automatically remove the photosensitive material.

<Prior Art> As a sensitive material attaching / detaching device of this type, a device shown in FIG. 4 proposed by the present applicant has been conventionally known (Japanese Patent Laid-Open No. 62-294245).

It is a rotary drum 103 that holds the photosensitive material 102 by suction, and the upper lids 121 and 131 can be automatically opened and closed.
It comprises an unexposed photosensitive material storage case 120 and an exposed photosensitive material storage case 130 which are arranged above the photosensitive material, and a photosensitive material adsorbing and conveying means 140 having a plurality of suction cups 141.

The sensitive material adsorption / transport means 140 includes a first rotary shaft 142 pivotally supported by the apparatus main body, a pair of first rotary arms 143 and 143 fixed to both ends of the first rotary shaft 142, 1 rotating arm
A second rotating shaft 144 pivotally supported at the tip of 143 and a pair of second rotating arms 145 fixed to both ends of the second rotating shaft 144.
.145 and a third pivotally supported at the tip of the second rotating arm 145
Rotating shaft 146 and a plurality of suction cups 141 ... Aligned with the third rotating shaft 146 in the axial direction thereof, and the first, second and third rotating shafts 142, 144, 146 are not shown separately. Of the unexposed photosensitive material accommodating case 120 by sucking and picking up the front end of the photosensitive material 102 with the suction cup 141, transporting it to the rotary drum 103, and mounting it. The rear end portion of the material 102 is sucked and conveyed to be housed in the exposed photosensitive material housing case 130.
In FIG. 4, reference numeral 122 is a belt-operated opening / closing means for opening and closing the upper lid 121 of the unexposed light-sensitive material containing case 120, 132 is an actuator for opening and closing the upper lid of the exposure agent sensitive material containing case 130, 105
Is a blade attached to the rotary drum 103 for fixing the tip of the photosensitive material 102, 106 is a blade lifter for opening the blade 105 prior to attachment / detachment of the photosensitive material, and 115 is a rotary drum.
An exposure head is provided so as to be capable of sub-scanning in the axial direction of 103 (direction perpendicular to the paper surface), and 116 is a guide rail of the exposure head 115.

<Problems to be Solved by the Invention> While the above-described conventional example of the sensitive material suction transport means 140 has a relatively simple structure, the three rotary shafts 142, 144, 146 are interlocked with each other by separate drive motors. Since it is a structure, it has the following drawbacks.

I. The position and orientation of the suction cup 141 are defined by the rotation angles of the three rotation shafts, and even a slight rotation error causes a large displacement. Therefore, it is necessary to maintain the rotational position accuracy of the first to third rotary shafts with high accuracy. It has 14 rotating shafts
The drive control is performed so that the 2.144 and 146 are interlocked with each other, for example, by a DC servo motor, but such a drive control system is expensive as a whole.

B. Since backlash is inevitably present in the transmission means interposed between the drive motor and the rotary shafts 142, 144, 146, an error is included in the state in which the sensitive material attracting and conveying means 140 is returned to the origin position. . Therefore, in order to fully bring out the function of the drive control system, the transmission means needs to be mechanically highly precise, resulting in high cost. The present invention has been made in view of such circumstances, and an object of the present invention is to solve the above problems (a) and (b).

<Means for Solving the Problems> In order to solve the above problems, the present invention is an improvement of the conventional photosensitive material attaching / detaching device as follows.

That is, an unexposed photosensitive material storage case is provided for the photosensitive material suction / transport means so as to be able to control the advancing / retreating position up to the photosensitive material take-out position, and the sensitive material suction / transport means is a frame to which lifting means for sucking the sensitive material is assembled. , With the upper part of the frame serving as a swing fulcrum, supporting the frame in an upright position, a front tilt position, and a rear tilt position so that the tilt position is controllable, and the suction cup is at least a suction position of the sensitive material by a lifting means, It is characterized in that the elevation position can be controlled over a position where it is attached to and detached from the rotary drum and a position where the photosensitive material is discharged.

<Operation> In the present invention, the position and orientation of the sucker are raised and lowered by the lifting and lowering means of the sucker assembled to the frame of the sensitive material suction and transport means, and the entire frame is swung back and forth, so that the sensitive material is not picked up. The tip of the photosensitive material is sucked and held from the exposure photosensitive material storage case, taken out, and the photosensitive material is conveyed and mounted on the rotating drum. After scanning exposure, the rear end of the photosensitive material is sucked and held by a suction cup to rotate. Discharge from the drum.

That is, in place of the rotational position control of the first to third rotary shafts in the conventional example, the position and the direction of the suction cup are surely controlled by interlocking with a system that raises and lowers the suction cup and a system that tilts the entire system. You can

<Embodiment> FIG. 1 is a side view showing an outline of a main part of a drum type image scanning recording apparatus. In FIG. 1, reference numeral 1 denotes the entire photosensitive material attaching / detaching device. The photosensitive material attaching / detaching device 1 has a rotary drum 3 for adsorbing and holding the photosensitive material 2 and an unexposed body in which upper lids 21 and 31 are automatically opened and closed. Sensitive material storage case 20 and exposed photosensitive material storage case
30 and a photosensitive material suction / transport means 40 having a plurality of suction cups 41.

The rotary drum 3 has a hollow structure and is connected to a blower (not shown) via a support shaft 4. A large number of suction holes are formed on the outer peripheral surface of the rotary drum 3 and a blade 5 for fixing the sensitive material is attached, and one end is fixed by the blade 5. The photosensitive material 2 is sequentially sucked and held on the outer peripheral surface of the drum.

Around the rotary drum 3, a blade lifter 6 for automatic attachment / detachment, a blade lifter 8 for manual feed, a drum low-speed rotation means 10 and an exposure head 15 for image exposure are arranged close to each other. Drive roller for low speed rotation means 10
11 is pressed against the outer peripheral surface of the rotary drum 3 to rotate the rotary drum 3 at a low speed. Since the control of the rotational position and the amount of rotation of the rotary drum 3 and the high-speed driving means at the time of image scanning exposure are conventional means of this type of drum-type image scanning recording apparatus, detailed description thereof will be omitted.

The low-speed rotation means 10 includes a drive roller 11 and a drive motor 12
And a pressure contact actuator 13 and is provided only for attaching and detaching the photosensitive material, but it is not necessarily required and a speed reducer may be interposed in the high speed driving means for scanning exposure.

The unexposed light-sensitive material storage case 20 includes the rotating drum 3 and the exposure head.
It is arranged horizontally above 15 and is provided so that the advancing / retreating position can be controlled with respect to the sensitive material suction / transport means 40 up to the sensitive material take-out position H ₂ . That is, the unexposed photosensitive material storage case 20 is advanced from the origin position H ₀ shown by the solid line in FIG. 1 to the photosensitive material take-out position H ₂ shown by the virtual line, and at the position H ₂ , the tip of the photosensitive material 2 is sucked by the suction cup 41. Is adsorbed and taken out, and then the case 20 is retracted to an intermediate position H ₁ indicated by an imaginary line. After the photosensitive material 2 is taken out, the case 20 is returned to the origin position H ₀ again, while the upper lid 21 is located at the origin position H _0. Is closed by the locking tool 22, fully open at the sensitive material take-out position H ₂ , and half open at the intermediate position H ₁ .
In FIG. 1, reference numeral 23 is a drive motor for moving the unexposed photosensitive material containing case 20 forward and backward, 24 is a drive screw, and 25 is a drive nut. The case 20 should be loaded from the front or side of the image scanning exposure apparatus. Thus, it is configured to engage with the drive nut 25 at the origin position H ₀ .

The exposed light-sensitive material storage case 30 is arranged in a rearward and lower direction of the unexposed light-sensitive material storage case 20 in an inclined shape, and
By conveying the exposed photosensitive material along the transport path 2 formed from above to the rear, the photosensitive material 2 is stored in the exposed photosensitive material storage case 30.
In FIG. 1, reference numeral 33 is a drive motor for opening and closing the upper lid 31, 34 is a driving screw, and 35 is a driving nut. The case 30 is loaded from the side of the image scanning recording apparatus, so that the upper lid 31 can be driven by the driving nut. Is configured to engage 35. The exposed photosensitive material may be fed into the automatic developing machine via the transport path 36, and in that case, the exposed photosensitive material storage case 30 can be omitted.

Sensitive material suction transport means 40 is a suction cup on a pair of left and right frames 42
The lifting means 45 of the frame 41 is assembled, and the upper part of the frame 42 is used as the swing fulcrum Q by the rotary actuator 43.
And an upright position W ₀ indicated by a solid line, and tiltably supported between a rear tilt position W ₁ and a front tilt position W ₂ respectively indicated by imaginary lines, and the suction cup 41 is moved to the origin position V ₀ by the elevating means 45, The raising / lowering position is controllable between the take-out position V ₁ of the sensitive material 2, the attachment / detachment position V ₂ with respect to the rotary drum 3 and the discharging position V _{3 of the} sensitive material.

The lifting means 45 for the suction cup is provided with a pair of left and right frames 42, 42 on the upper sprocket 46, 46 and lower sprocket 47, respectively.
・ 47 is pivotally supported and both sprocket wheels 46 ・ 47 have transmission chain 48
The suction cup support 49 is laid substantially horizontally on the left and right transmission chains 48, a plurality of suction cups 41 are arranged in line on the suction cup support 49, and the upper sprocket 46 is rotationally driven by the drive motor 50. Thereby, the suction cup 41 is configured to be moved up and down to a predetermined position. As a positioning means, a detection sensor (not shown) is arranged at a required position of the frame 42 to detect the position of the suction cup support 49. The suction cup 41 is connected to a vacuum pump (not shown).

Further, the rotary actuator 43 is configured to switch the tilting position of the frame 42 via the operating rods 44a and 44b. By coordinating the ascending / descending position control and the tilting position control, the unexposed photosensitive material storage case 20 The photosensitive material 2 is adsorbed and taken out by the suction cup 41, mounted on the rotary drum 3, and the exposed photosensitive material 2 is detached from the rotary drum 3 and collected in the exposed photosensitive material storage case 30. It is configured.

The operation of the apparatus of the above embodiment will be described below with reference to FIGS. 2 and 3. First, based on FIGS. 2 (A) to (F),
The mounting operation of the sensitive material will be described.

In the same figure (A), the unexposed photosensitive material storage case 20 is placed at the origin position H _0.
To the sensitive material take-out position H ₂ indicated by the solid line, and at that position the suction cup 41 is lowered from the origin position V ₀ to the sensitive material take-out position V ₁ to adsorb the tip of the sensitive material 2 to the position of the virtual line. lift.

In the same figure (B), the unexposed photosensitive material storage case 20 is moved to the intermediate position H ₁
In order to make it easy to take out the photosensitive material 2 while retracting to the
And spray the air from the air brush 28/29.

In FIG. 6C, the frame 42 is tilted to the rear tilt position W ₁ and the suction cup 41 is lowered to the attachment / detachment position V ₂ with respect to the rotary drum 3. The rotary drum 3 is positioned at the origin position D ₀ during the operations (A) to (C), and the blade 5 for fixing the photosensitive material is opened by the blade lifter 6.

In the same figure (D), the frame 42 is returned to the upright position W _0, and the tip of the photosensitive material 2 is fixed by the blade 5, and then the suction cup 41
Release the adsorption of.

In FIG. 6E, the suction cup 41 is returned to the origin position V ₀ and the photosensitive material 2 is adsorbed to the drum peripheral surface while rotating the rotating drum 3 at a low speed. At this time, the squeegee roller 7 integrated with the blade lifter 6 is brought into contact with the drum surface to squeeze the film.

In FIG. 6F, the winding of the photosensitive material 2 around the rotary drama 3 is completed, the rotary drum 3 is stopped, and the contact of the squeegee roller 7 is released. And unexposed photosensitive material storage case
20 returns to the origin position H ₀ , and the upper lid 21 is closed.

Although the above series of operations are automatically performed, the sensitive material 2a is inserted from the manual guide (Fig. 1) as necessary and the rotary drum 3 is manually inserted by a manual switch (not shown). The photosensitive material 2a can be mounted in the same manner as above by opening the blade 5 with the manual blade lifter 8 after positioning to the position.

After mounting the sensitive material, rotate the rotating drum 3 at high speed,
An image is exposed and recorded by scanning the exposure head 15 in the sub-scanning direction.

Next, the discharge operation of the photosensitive material will be described based on FIGS. 3 (A) to 3 (F).

In FIG. (A), positioning the rotary drum 3 to the photosensitive material discharge position D _1, lifting adsorbs rear end portion of the photosensitive material 2 lowers the suction cups 41 to the mounting and dismounting position V _2, the squeegee roller 7 equivalents Contact.

In the same figure (B), the frame 42 is tilted to the front tilt position W ₂ and the suction cup 41 is raised. Note that the rotary drum 3 is rotated at a low speed as the suction cup 41 is raised, and the suction on the peripheral surface of the drum is released to separate the film.

In the same figure (C), the suction cup 41 is stopped at the photosensitive material discharge position V ₃ ,
In the same figure (D), by tilting the frame 42 again to the rear tilt position W ₁ , the rear end of the photosensitive material 2 is held by the feed rollers 37, 37 of the transport path 36. Note that the suction of the suction cup 41 is released after the holding.

In the same figure (E), the suction of the suction cup 41 is released to return to the origin position V ₀ , and the frame 42 is returned to the upright position W ₀ . On the other hand, when the rotary drum 3 reaches the origin position D ₀ , the blade 5 is opened to release the tip of the photosensitive material 2, and the upper lid 31 of the exposed photosensitive material storage case 30 is opened.

In FIG. 6F, the photosensitive material conveyed by the conveying path 36 is stored in the exposed photosensitive material storage case 30, and then the upper lid 31 is closed. Incidentally, the exposed photosensitive material is taken out of the apparatus body of the case 30 and carried to the developing processing chamber where the phenomenon processing is performed.However, when the apparatus and the automatic developing machine are directly connected, as described above. The case 30 is unnecessary.

Although the rotary drum 3 includes the blade 5 for fixing the tip of the photosensitive material 2 and the blade lifter 6 opens and closes the blade 5 in the above embodiment, the present invention is not limited to this. Any material can be used as long as it absorbs and holds the material.

Further, in the above-described embodiment, the supply of the photosensitive material to the rotary drum is exemplified as the one that can be manually supplied, but it is not always necessary.

Further, the present invention can be implemented with various other modifications.

<Effects of the Invention> As is clear from the above description, in the present invention, the position and orientation of the suction cup are controlled by the interlocking of the system for raising and lowering the suction cup and the system for tilting the whole of the sensitive material suction conveyance means. Since this is done, the following effects can be obtained.

I. Compared to the conventional example in which three rotary shafts are interlocked with each other, they can be practically used without high precision, so that the drive control system can be manufactured at low cost as a whole.

B. Moreover, the error caused by the lifting movement of the suction cup and the error caused by the tilting of the system are independent of each other, so that even if there is a backlash such as transmission means. Can be dealt with individually. Therefore, the attachment / detachment of the sensitive material can be reliably performed.

[Brief description of drawings]

FIG. 1 is a schematic side view of a drum type image scanning recording apparatus showing an embodiment of the present invention, FIG. 2 is an explanatory view of a photosensitive material mounting operation, and FIG. FIG. 4 is a schematic side view of a main part of a conventional example. 2 ... Sensitive material, 3 ... Rotating drum, 20 ... Unexposed sensitive material storage case, 40 ... Sensitive material suction / transport means, 41 ... Sucker, 42 ...
Frame, 45 …… Sucker lifting means, H ₂ …… Sensitive material extraction position of unexposed photosensitive material storage case, V ₁ …… Sucker photosensitive material extraction position,
V ₂ …… Suction cup attachment / detachment position to the rotating drum, V ₃ …… Suction cup discharge position of sensitive material, Q …… Frame swing fulcrum, W ₀ …… Frame upright position, W ₁ …… Frame rear tilt Position, W ₂ ... Front tilt position of the frame.

Claims (1)

[Scope of utility model registration request] 1. A photosensitive material attaching / detaching device for a drum-type image scanning recording apparatus, comprising: a rotary drum for adsorbing and holding a photosensitive material; an unexposed photosensitive material storage case; and a photosensitive material adsorbing and conveying means having a plurality of suction cups. In the above, an unexposed photosensitive material storage case is provided for the photosensitive material suction / conveying means so that the advancing / retreating position can be controlled up to the photosensitive material take-out position, and the photosensitive material suction / transporting means is a frame to which lifting means for sucking the sensitive material is attached. , The upright position with the upper part of this frame as the swing fulcrum,
The tilting position is controllable between the front tilt position and the rear tilt position, and the suction cup is moved up and down by at least the suction and suction position of the sensitive material, the mounting and demounting position on the rotary drum, and the discharge position of the sensitive material. A photosensitive material attaching / detaching device for a drum-type image scanning recording device, which is configured to be position controllable.