JPH0719032B2 - Photo printing mask device - Google Patents

Description

The present invention relates to a photographic printing mask device which is interposed between a photographic printing light source and a photosensitive material to determine a printing range on the photosensitive material.

[Background technology]

In a photographic printing apparatus, a negative film image is printed on a photosensitive material such as printing paper by printing light from a light source to obtain a printed image. There are cases in which the print image has a non-printed edge around it, and cases in which there is no edge image in which the image is printed over the entire area of the print image, and the mask must be replaced accordingly.

SUMMARY OF THE INVENTION In consideration of the above facts, an object of the present invention is to provide a photographic printing mask device which does not require replacement of the mask when printing a borderless image and a bordered image.

[Outline and Action of the Invention] The present invention is a mask device that is interposed between a light source for photographic printing and a photosensitive material to determine a printing range, and is a pair of movable members arranged movably in the width direction of the photosensitive material. Table, drive means for moving the moving table according to the width dimension of the photosensitive material for printing, and positioning it near the end of the photosensitive material for printing in the width direction. A widthwise mask which is capable of moving back and forth slightly by two-position switching corresponding to an existing image, and a widthwise mask which is arranged at a right angle to the widthwise mask and determines the printing range together with the widthwise mask, and onto the photosensitive material. It is characterized in that it has a lengthwise mask which can be retracted from a position where an edged image is formed to a position where it is moved to a direction in which the printing range is enlarged and a position where an edgeless image is formed. If a parallel moving mechanism is interposed between the movable table and the widthwise mask, the auxiliary mask is moved while its end portion remains parallel to the longitudinal axis of the photosensitive material.

Example of Invention

1 to 5 show a photographic processing apparatus to which the present invention is applied. This photographic processor uses photographic paper, which is a photosensitive material.
After the printing process is performed by the printing unit 12, the printing unit 10 is sent to a developing device (not shown) via the printing unit 14.

At the entrance of the printing unit 12, vertical guide blocks 20 are provided on both sides of the transport center line L, and the photographic paper 10 is directed upward between the guide plates 22 corresponding to these vertical guide blocks 20. It is supposed to be sent out.
The upper end portions of these vertical guide blocks 20 are bent in a semicircular shape, and a guide roller 24 having an outer peripheral shape substantially equal to this bent portion is arranged between these vertical guide blocks 20. The guide rollers 24 include transport rollers 26, 28.
Are in contact with each other, and the photographic printing paper 10 is sandwiched between the photographic paper 10 and the guide roller 24 and fed out in the horizontal direction. Therefore, the central axis 30 of the guide roller 24 is pivotally supported near the machine base 32 at both ends, and the pulley 34 is fixed to the end protruding from the machine base 32 to receive the rotational force of a motor (not shown). ing.

One end of a horizontal guide block 42 is integrally connected to the upper ends of the pair of vertical guide blocks 20. A block 44 is fixed to the lower surface of these guide blocks 42, and a screw shaft 46 is screwed therein. This screw shaft
In the screw 46, the threaded portions of the pair of blocks 44 are screws in opposite directions, and the pair of horizontal guide blocks 42 are rotated during rotation.
The width dimensions at the time of printing can be changed by contacting each other.

Further, a pair of blocks 48 are also fixed to the vertical guide blocks 20, respectively, and a screw shaft 50 is similarly screwed. Timing belt 5 is installed between these screw shafts 46 and 50.
The screw shaft 46 is wound around the output shaft 56 of the motor 54 and the timing chain 58 is wound around the screw shaft 46 to receive the rotational force. Therefore, when the motor 54 rotates, the pair of horizontal guide blocks 42 can be brought into contact with and separated from each other along the axial centers of the screw shafts 46 and 50 while maintaining the parallel state with each other.

The upper end of the vertical guide block 20 is a semi-circular bent portion.
Since 20A is formed around the central axis 30, it can move along the axial direction of the central axis 30 without interference.

The photographic paper is fed horizontally between the guide roller 24 and the conveying roller 28 between the pair of horizontal guide blocks 42.
A support base 60 for mounting the 10 is fixedly attached to the machine base 32.

As shown in FIG. 5, a support plate 62 is placed on the support base 60. This support plate 62 is bent so that both sides sandwiching the central part become a low position part 63B via a step part 63A, and further, the width direction end parts of these low position parts 63B are reinforced parts 63C rising at right angles, It is 63E. This support plate 62
As shown in FIG. 3, a circular hole 62A and a notch 62B, 62C are formed on the upstream side and the downstream side, respectively, in the printing paper conveying direction to the lower portion 63B, and the pins 32A, 32 protruding from the machine base 32 are formed therein.
B and 32C (Fig. 2) are inserted and the support plate 62 is positioned on the machine base 32 and mounted on the tower.

The support plate 62 has a large number of suction holes 64 formed on the mounting surface of the photographic paper 10, and the suction device 65 arranged in the support base 60 can adsorb the photographic paper 10 to the top surface of the support plate 62. It is like this.

As shown in FIG. 1, an optical means 66 including a light source (not shown) is arranged above the support plate 62, and a guide rail 68 is provided.
The photographic paper 10 can be moved in the longitudinal direction, that is, along the transport center line L. For this reason, this printing part
In FIG. 12, the printing optical axis P is movable in the left-right direction in FIG.

A cutter 72 is arranged between the printing plate 14 and the support plate 62 on the downstream side of the printing paper conveyance direction. This cutter 72 is the printing unit 12
The fixed blade 74 is arranged at the lower side of the passage of the photographic paper 10 fed in the horizontal direction from the above, and the movable blade 76 is arranged at the upper side, and the movable blade 76 moves up and down so that the photographic paper 10 can be cut between the images. ing. This cutter 72 constitutes one longitudinal mask when the printing operation is performed on the photographic printing paper 10 on the support plate 62 around the printing optical axis P so that the printing range can be determined.

Corresponding to the movable blade 76 of the cutter 72, a lengthwise mask 82 for determining the other end of the printing range is arranged as shown in FIG. 4, and also determines the widthwise end of the printing range. For this purpose, widthwise masks 84 and 86 are provided to determine the printing range centering on the printing optical axis P together with the lengthwise mask 82 and the movable blade 76.

The lengthwise mask 82 is arranged such that its longitudinal direction is at a right angle to the transport center line L, that is, in the widthwise direction of the printing paper, one end is fixed to the moving block 88, and the other end is placed on the widthwise mask 84. ing. The moving block 88 moves in parallel with the longitudinal direction of the photographic printing paper 10 along a guide bar 92 which is horizontally extended to an opening 90 (illustrated by an imaginary line in FIG. 5) formed in the reinforcing portion 63C of the support plate 62. It is possible. Further, the moving block 88 is formed with a projection 96 (FIG. 3) which is inserted into a guide groove 94 formed along the longitudinal direction of the guide bar 92, whereby the moving block 88 and the lengthwise mask 82 are linear. Therefore, it can be moved in parallel with the transport center line L.

As shown in FIG. 3, a part of the endless timing belt 98 is attached to a part of the moving block 88, and the timing belt 98 is supported by the pulleys 100, 1 axially supported by the reinforcing portion 63C.
It is hung on 02, and the middle part is arranged parallel to the guide bar 92. The pulley 100 is a motor 10 fixed to the reinforcing portion 63C.
By receiving the driving force of 3, the timing belt 98 can be reciprocated, whereby the lengthwise mask 82
Can be moved toward and away from the cutter 72.

The optical means 66 is also moved in accordance with the movement of the lengthwise mask 82, and the optical means 66 guides to the midpoint of the printing range constituted by the lengthwise mask 82 and the cutter 72. It is designed to move along the rail 68.

On the other hand, the widthwise masks 84 and 86 are movable tables 112 and 114, respectively.
It is supported by the lower portion 63B of the support plate 62 via.

The movable tables 112 and 114 are attached to the rectangular cutouts 63D formed in the lower portion 63B of the support plate 62, respectively, and the transport center line L
It is possible to move in and out of. For this,
U-shaped grooves 112A and 114A (fourth
(Fig.) Are respectively formed and rectangular cutouts are formed in these
The edge of 63D has entered.

In order to insert the movable tables 112 and 114 into the rectangular cutout 63D,
A part of the rectangular cutout 63D is extended to the stepped portion 63A, and the width dimension is enlarged.

A circular hole 113 and a long hole 115 (Fig. 5) are formed in the movable bases 112, 114 to accommodate a pair of pins 42A, 42B (Fig. 2) standing upright from the horizontal guide block 42. There is. Therefore, the moving bases 112 and 114 move together with the horizontal guide block 42 relative to the support plate 62 when the size of the image to be printed is changed, and are driven in the direction perpendicular to the transport center line L.

Since the support structure for the movable table 112 of the widthwise mask 84 and the support structure for the movable table 114 of the widthwise mask 86 are symmetrical with respect to the transport center line L, the movable table for the widthwise mask 86 is representative.
The support structure for 114 will be described.

As shown in FIG. 3, a pair of pins 116,
118 is vertically projected, and the intermediate portions of the links 120 and 122 are pivotally supported. The width direction mask 86 is axially supported by the pins 124 and 126 which are erected from one ends of the links 120 and 122. The distance between these pins 118 and 126 is pin 116.
Is equal to the distance between the pins 124 and 126, and the distance between the pins 124 and 126 is equal to the distance between the pins 116 and 118. Therefore pin 11
The axes of 6, 118, 124 and 126 are at the vertices of the parallelogram,
The movable table 114 supports the width-direction mask 86 via a parallel movement link mechanism, and allows the width-direction mask 86 to contact and separate from the conveyance center line L while maintaining the parallel state with the conveyance center line L.

That is, when the widthwise mask 86 approaches the conveyance center line L as shown in FIGS. 3 and 6, a part of the widthwise mask 86 is printed on the printing portion 12.
The marginal image is formed by slightly penetrating into the widthwise end of the printing range, and conversely, when the widthwise mask 86 is separated from the transport center line L as shown in FIG. 7, the widthwise mask 86 is retracted from the printing range. Then, a borderless image is formed.

As shown in FIG. 3, the link 120 receives a biasing force counterclockwise in FIG. 3 with a tension coil spring 127 interposed between the link 120 and the lower portion 63B.

Similarly, the widthwise mask 84 on the opposite side via the transport center line L is also supported by the movable table 112 to perform the same operation, but each component is the same as that of the widthwise mask 86. It is shown with the same reference numerals.

The other ends of the links 120 and 122 are pivotally supported on the intermediate link 132 by pins 128 and 130, respectively. These intermediate links 132 have an upright portion 134 at the downstream end of the photographic printing paper 10 in the conveying direction, and the pin 13 protruding from the gear 136 as shown in FIGS.
Corresponds to 8. A pair of the gears 136 are provided coaxially with the widthwise masks 84 and 86 so as to sandwich the transport center line L.
Support shafts 142 that are respectively supported on the support plate 62 via L metal fittings.
Is stuck to.

When the moving block 88 moves toward the cutter 72, the pin 138 abuts against the end of the moving block 88 and is rotated clockwise in FIG. 8, whereby the pin 138 stands up. The installation portion 134 is moved leftward as shown in FIG. 9, and the links 120 and 122 are moved around the pins 116 and 118 to the sixth position.
The widthwise masks 84 and 86 are retracted from the transport center line L as shown in FIG. 7 by rotating them clockwise in the drawing.

Thus, the gear 136 is held by the latch 144 as shown in FIG. 9 when the pin 138 is moved by the moving block 88 from the state shown in FIG. 8 to the state shown in FIG. That is, a notch 136A is formed on the outer periphery of the gear 136, and the latch 1
The rotation of the gear 136 in the counterclockwise direction in FIG. 9 is prevented by the engagement of the notch 136A with the elastic member biasing force of 44.

A solenoid 146 corresponds to this latch 144, and when the solenoid 146 is excited, the latch 144 is pulled out from the notch 136A, and the gear 136 is brought into a state in which it can rotate counterclockwise in FIG.

Pinions 148 are engaged with the outer circumference of the gear 136. These pinions 148 are fixed to both ends of the rotary shaft 150 so as to rotate the gears 136 on both sides of the transport center line L in synchronization. The longitudinal axis of the rotary shaft 150 is arranged at a right angle to the transport center line L, and the rotary shaft 150 is axially supported by the reinforcing portion 63C above the cutter 72. One end of a length direction auxiliary mask 152 is fixed to the middle portion of the rotating shaft 150. A bent portion 152A is formed at the other end of the lengthwise mask 152.

The lengthwise mask 152 is rotated clockwise in FIG. 9 to the state shown in FIG. 8 and comes into contact with the cutter 72 to stop. In this state, the bent portion 152A is slightly inserted into the printing optical axis P from one end in the lengthwise direction of the printing range determined by the moving blade 76, which makes it possible to cope with the printing of the edged image. ing. However, when the moving block 88 moves together with the lengthwise mask 82 and the widthwise masks 84 and 86 are retracted as shown in FIG. 7, the rotation shaft 150 that receives the rotation of the gear 136 through the pinion 148 has this length. The depth direction auxiliary mask 152 is rotated to the state shown in FIG. 9 so that the length direction auxiliary mask 152 is retracted out of the range of the printing light.

Next, the printing unit 14 arranged at the rear of the printing unit 12 will be described. In the printing unit 14, an upper guide plate 158 and a lower guide plate 160 are provided continuously to the cutter 72, and guides the cut photographic paper 10 fed from the cutter 72 in the horizontal direction.

For this reason, notches are formed in parts of the upper guide plate 158 and the lower guide plate 160, and the upper guide roller 166 and the lower guide roller 168 project part of them toward the photographic paper conveyance path to sandwich the photographic paper 10. Then, it is designed to send it to the light shielding rollers 170 and 172. The upper guide roller 166 and the lower guide roller 168 are configured to rotate by receiving a rotational force from a driving unit (not shown). The upper guide roller 166 is supported by an arm 176 that is pivotally supported around a pin 174, and is lifted together with the arm 176 to open the photographic paper conveyance path when necessary.

The lower guide plate 160 is provided between the pair of lower guide rollers 168.
The print head 180 can be projected to the back surface of the photographic printing paper 10 through a notch provided in the. This print head
180 is pressed against the back surface of the photographic printing paper 10 by a driving force of a driving means (not shown) so that necessary information such as characters can be printed.

The lower guide roller 168 preferably receives a driving force from a developing device (not shown) and rotates at the same feeding speed as the conveying speed of the printing paper 10 by the developing device.

The light-shielding rollers 170 and 172 are rollers that can freely rotate, and sandwich the printed photographic paper 10 to guide it to a developing device in the next step (not shown).

Next, the operation of this embodiment will be described.

A continuous long photographic printing paper 10 sent out from a pre-process (not shown) is vertically sent between a vertical guide block 20 and a guide plate 22, and is guided by a guide roller 24 and a conveying roller.
It is sandwiched by 26 and 28 and fed to the upper part of the support plate 62.

In the printing unit 12, the horizontal guide block 42 is moved in advance corresponding to the size of the printed image, and the width-direction masks 84 and 86 are positioned. In this state, the widthwise mask
The state shown in FIG. 6 in which 84 and 86 are projected toward the printing optical axis P is shown. For this reason, the surfaces (printing surfaces) of the widthwise both ends of the fed photographic printing paper 10 are moved along the conveyance center line L while being sandwiched between the widthwise masks 84 and 86 and the support base 62.

When the leading end of the photographic paper 10 reaches the cutter 72, the moving blade 76 descends and meshes with the fixed blade 74, cutting the unnecessary leading end of the photographic paper 10.

In this state, the lengthwise auxiliary mask 152 is in a state in which the bent portion 152A is lowered onto the photographic printing paper 10 as shown in FIG. 6, which corresponds to the edged image.

Therefore, the lengthwise mask 82 is positioned by moving the moving block 88 to a position separated from the lengthwise auxiliary mask 152 by a length corresponding to the printing range of the bordered image. Similarly, the optical means 66 is also moved to the midpoint between the lengthwise auxiliary mask 152 and the lengthwise mask 82 to determine the optical axis P.

Here, the printing light is exposed to the printing paper 10 through the optical axis P,
The image of the negative film is printed.

After printing, the guide roller 24 and the conveying rollers 26, 28 are driven again to move the photographic paper 10 leftward in FIG. 1 by one image.
When the next image is printed, the cutter 72 operates and the photographic paper 10 is cut between the images. After the cutting, necessary information is printed on the back surface of the printing paper 10 by the printing unit 14 and sent to a developing device (not shown).

When forming the next borderless image, the moving block 88 is moved in the direction of approaching the cutter 72. This causes the moving block 88 to move from the state shown in FIG. 8 to the state shown in FIG. 9 and rotate the gear 136 via the pin 138. Therefore, the upright portion 134 moves the intermediate link 132 from the state shown in FIG. 6 to the state shown in FIG. 7, and the links 120 and 122 are pinned.
The widthwise masks 84 and 86 are rotated around 116 and 118, and are retracted in a direction away from the printing optical axis P, that is, from the printing opening.

At the same time, in the gear 136, the latch 144 engages with the notch 136A, and the rotated state of the gear 136 is maintained. The rotating shaft 150 that receives the rotation of the gear 136 via the pinion 148 rotates the lengthwise auxiliary mask 152 from the state of FIG. 8 to the state of FIG. 9, and the lengthwise auxiliary mask 152 is printed by the optical means 66. Save from range.

Next, the lengthwise mask 82 moves, the block 88 moves, and the guide bar 92 moves.
Along the photographic paper conveying direction, and is separated from the cutter 72 by a length corresponding to the length of the printed image. Further, the optical means 66 moves to the midpoint of this printing length dimension.

As a result, the image printed by the optical means 66 is photographic paper 10.
A borderless image is formed, and the negative film image is printed over the entire width direction of the printing paper 10.

In this way, the bordered image and the borderless image are selected, and when the width dimension of the printing paper 10 is changed as necessary, the width direction masks 84 and 86 are horizontally guided by driving the motor 54. Together with the block 42, they are moved toward and away from each other so as to follow both widthwise ends of the printing paper 10.

〔The invention's effect〕

Since the present invention has the above-mentioned configuration, the moving table quickly conveys the width direction mask to the baking position to cope with the change of the baking size, and the width direction mask has an edge, and an effect that can accurately correspond to the edgeless baking size Have.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a photographic printing apparatus to which the present invention is applied (however, a supporting plate 62 is removed), FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a supporting plate 62. FIG.
The figure is an exploded perspective view showing the baking part with the support plate omitted.
FIG. 5 is a perspective view showing the support plate 62 and its related components, FIG. 6 is a plan view of one widthwise mask portion, FIG. 7 is an operation diagram of FIG. 6, and FIG. 8 is a bottom view of FIG. FIG. 9 is a side view showing a drive unit of the lengthwise auxiliary mask corresponding to the drawing, and FIG. 9 is an operation view of FIG. 10 ... Printing paper, 12 ... Printing part, 66 ... Optical means, 84,86
...... Width mask, 112, 114 …… Movable table, 120,122 ……
Link.

Claims (2)

[Claims] 1. A mask device interposed between a light source for photographic printing and a photosensitive material to determine a printing range, comprising a pair of movable bases movably arranged in the width direction of the photosensitive material. Driving means for moving the movable table according to the width dimension of the photosensitive material and positioning it near the widthwise end of the photosensitive material for printing, and corresponding to the marginless image and the edged image mounted on these movable tables. A widthwise mask that can be moved back and forth by a slight amount by switching between two positions, and is arranged in a direction perpendicular to the widthwise mask to determine the printing range together with the widthwise mask. A photographic printing mask device comprising: a lengthwise mask that can move from a position for forming a print to a direction for expanding a printing range and retract to a position for forming a borderless image. 2. A range table (1) according to claim 1, wherein said widthwise mask is capable of advancing and retracting while maintaining a parallel state with a longitudinal axis of the photosensitive material by interposing a parallel moving mechanism between the width direction mask and the moving table. Photo printing mask device.