JPH0661716B2 - Thin material punching cutter - Google Patents

Description

The present invention relates to a thin material punching cutter for punching a thin material such as a photographic light-sensitive material into a predetermined shape.

[Background Art] In the production of photographic prints of photographic images, an unused photographic printing paper wound in a roll is drawn out to print an image from a negative film or the like, and the photographic print obtained by development is cut with a straight blade. A blade is used to cut and separate each image.

However, there is a case where the image portion is punched out into a predetermined shape from the print to make a product. This is mainly used for driver's licenses, ID cards, etc.

In this case, there has been proposed a thin-material punching cutter having a configuration in which a flat plate is arranged on one side of the print and the movable blade is pressed against the flat plate surface to punch a predetermined shape from the long print. In this thin material punching cutter, the punching residual portion of the print for printing is sandwiched by the conveying rollers and conveyed so as to be bent in the conveying direction of the punching portion. As a result, even if the punching is insufficient and the punching part and the punching remaining part remain connected and are not completely separated, the punching part and the punching remaining part are separated.

However, in this thin-material punching cutter, it is necessary to specially provide a transporting roller for bending and transporting the punching residual portion, and there is a problem that the number of parts such as the roller and the driving device increases and the cost increases. It was Furthermore, if the width of the unpunched portion is extremely narrow, it may be cut during transportation.

[Problems to be Solved by the Invention] In consideration of the above facts, the present invention, when punching a predetermined shape from a print to make a product, is not sufficiently punched and the punching portion and the punching residual portion are completely separated. Even if it is not done, it is possible to reliably separate these regardless of the size of the punching residual part and the size of the punching part (product shape), and it is necessary to manufacture or replace a special separation mold. It is an object to obtain a thin material punching cutter that can be carried out without the need.

[Means for Solving Problems] A thin material punching cutter according to the present invention is a thin material punching cutter that conveys a punching portion punched by a punching cutting portion and a punching remaining portion by a pair of rollers for conveyance. There, a plurality of ring-shaped convex portions are formed around the axis on the peripheral surface of one of the pair of rollers at predetermined intervals along the axis, and the convex portions are formed on the peripheral surface of the other roller, respectively. A plurality of recesses for receiving are formed, and the punched portion is bent when the punched portion and the punching remaining portion are held.

[Operation] In the thin-material punching cutter having the above-described structure, the punched portion and the unpunched portion both pass between the pair of rollers in the printed image after punching. At this time, since the convex portions and the concave portions formed on the peripheral surface of each roller forcefully bend and convey the concave and convex portions, the residual connecting portion is separated and the punching portion and the punching residual portion are completely separated. It

[Embodiment] FIGS. 1 and 2 show an embodiment of a punching cutter 10 to which the present invention is applied. In this punching cutter 10, the printing paper 12 after the image has been printed and developed in a pre-process (not shown) is conveyed in the direction of arrow A between the pair of side plates 14.

A winding roller 16 is arranged between the pair of side plates 14 and is rotated by receiving the driving force of a motor (not shown). A pressing belt 18 is pressed against the winding roller 16. The pressing belt 18 has an endless shape and is wound around the winding rollers 20, 22 and the winding roller 24. The photographic printing paper 12 is pressure-bonded to the winding roller 16 by the pressing belt 18 and then conveyed in the horizontal direction. It is supposed to be done.

The printing paper 12 delivered from between the winding roller 16 and the pressing belt 18 enters between the fixed base 26 and the movable base 28.

As shown in FIG. 3, the fixed base 26 is the base plate 3
0 is arranged, and the photographic printing paper 12 is passed over a plurality of seat plates 34 accommodated in the cutout portion 32 of the base plate 30.

The seat plate 34 is fixed to the base plate 30 with screws 36, and the photographic paper 12 is mounted on the uppermost seat plate 34.

As shown in FIG. 2, both ends of the base plate 30 in the width direction are fixed to the upper ends of the standing brackets 42 by the mounting bolts 40, and the standing brackets 42 are fixed to the machine base 44.

Rectangular holes 46 and 48 are formed in the base plate 30 and the seat plate 34 on both sides of the center line of the photographic printing paper 12 in the transport direction, so that the enlarged diameter portion 52 of the lower roller 50 projects. That is, the enlarged diameter portion 52 of the lower roller 50 is configured such that a part of its outer periphery passes through the rectangular holes 46 and 48 of the seat plate 34 and contacts the lower surface of the photographic printing paper 12 being conveyed.
The support shaft 54, which is fixed to the shaft center of the lower roller 50, passes through the vertical bracket 42, and both ends thereof are supported by the side plate 14.

The support shaft 54 is connected to a drive motor for the winding roller 16 via a timing belt (not shown),
It is adapted to rotate at the same transport speed as the winding roller 16.

On the other hand, in the movable table 28, the movable blade 60 is provided with the cutting plate 62.
Installed to. The movable blade 60 is a thin plate material whose longitudinal axis is bent in a rectangular shape, and its upper end is housed in a recess 64 formed in the lower surface of the cutting plate 62, and the lower end is located below the cutting plate 62. Protruding to. An elastic block 66 is provided with a screw 6 in the moving blade 60.
It is fixed to the cutting plate 62 at 8. The elastic block 66 is an elastic material such as vinyl chloride or sponge, and has a function of pushing the punching portion 12A of the photographic printing paper 12 from the moving blade 60.

A rectangular hole 62B is formed in the cutting plate 62 at a substantially central portion so as to accommodate the upper roller 96. A support shaft 97 penetrates the shaft center of the upper roller 96, and both ends of the support shaft 97 are screwed to the lower end of a guide shaft 98 penetrating the cut plate 62. The upper end of the guide shaft 98 projects to the upper end of the cutting plate 62, and the enlarged diameter portion 98
A limits the amount of downward movement of the guide shaft 98.
A compression coil spring 99 is interposed between the guide shaft 98 and the cutting plate 62. Therefore, the upper roller 96
The lower roller 50 is driven by the biasing force of the compression coil spring 99.
The expanded portion 52 is pressed to generate a force for conveying the punched portion 12A after punching.

A rectangular hole 66A for allowing the upper roller 96 to pass is formed in the elastic block 66 arranged in the moving blade 60.

The cutting plate 62 is inserted into a rectangular hole 72 formed in the central portion of the press plate 70, and thin flanges 62A protruding from both ends in the width direction are fixed to the pressing plate 70 with mounting bolts 74.

As shown in FIG. 2, the upper end of the connecting rod 76 is fixed to both sides of the rectangular hole 72 with bolts 77, and the lower end of the connecting rod 76 is fixed to the upper end of the connecting plate 78 with bolts 79.

A central portion of the connecting rod 76 is axially supported by a support plate 82 via a bearing 86, and the support plate 82 is fixed to the upright bracket 42. Therefore, the connecting plate 78 is connected to the cut plate 62 via the press plate 70.
Is guided to move up and down in a straight line.

An eccentric cam 88 is provided between the vertical brackets 42 via a bearing 87.
A shaft 89 of is supported. A bearing 90 is centered on the outer circumference of the eccentric cam 88, and the bolt 9 is attached to the lower end of the bearing 90.
The top of 1 corresponds. This bolt 91 is a lifting plate 92
The lifting plate 92 is connected to the connecting plate 78 via the lifting wall 93 by screwing. The output shaft of the motor 94 is connected to the shaft 89, and the rotation of the motor 94 causes the eccentric cam 88 to move the lifting plate 92 and the lifting wall 93 up and down, whereby the connecting rod 76 moves the moving table 28 relative to the fixed table 26. It is designed to move up and down.

In this case, the lower end of the movable blade 60 contacts the seat plate 34 of the fixed base 26 at the lowest point of the movable base 28, and a rectangular punching portion is formed on the photographic paper 12 passing between the movable base 28 and the fixed base 26. 12
A is formed and cut from the blanking portion 12B.

The lower conveyance roller 100 and the upper conveyance roller 10 are provided between the side plate 14 on the downstream side of the printing paper punching section by the movable blade 60 and the seat plate 34.
2 is arranged, and the photographic printing paper 12 after punching that has passed between the fixed base 26 and the movable base 28 is the lower conveyance roller 100.
And the upper conveying roller 102, and receives a conveying force.

As shown in FIG. 4 and FIG.
Is a substantially cylindrical roller, and a skin portion 103 made of a rubber material is attached to the peripheral surface of a hard main body portion 101. A plurality of ring-shaped convex portions 105 are projected on the outer periphery of the skin portion 103 around the axis, and these convex portions 105 are formed at regular intervals in the direction along the axis of the lower conveying roller 100.

The lower conveyance roller 100 is connected to a rotation shaft of a motor 114 via a timing belt 112, and the motor 1
It receives the driving force of 14 and rotates. In this case, the conveyance speed of the lower conveyance roller 100 is set to the lower roller 5
It is the same as the expanded diameter portion 52 of 0 and the winding roller 16.

On the other hand, the upper conveyance roller 102 is also a substantially cylindrical roller like the lower conveyance roller 100, and a skin portion 109 made of a rubber material is attached to the peripheral surface of a hard main body portion 107. On the outer periphery of the skin portion 109, a concave portion 111 for receiving the convex portion 105 of the lower conveying roller 100 in the circumferential direction.
Is formed, and the concave portion 111 is formed by the convex portion 105.
Similarly to the above, they are formed at regular intervals in the axial direction of the upper conveying roller 102. The concave portion 111 is configured to fit with the convex portion 105.

The upper conveying roller 102 is axially supported by a holding member 118 via a bearing 116, and the holding member 118 is fixed by screwing a bolt 120 to an arm portion 14A of the side plate 14. In addition, the holding material 118 and the bolt 120
A compression coil spring 122 is interposed between the head of the holding member 118 and the upper conveying roller 102.
Is urged toward the lower conveyance roller 100. in this case,
By rotating the bolt 120, the urging force of the compression coil spring 122 is changed so that the upper conveyance roller 102 presses the lower conveyance roller 100 (in other words, the photographic paper 12 formed by the lower conveyance roller 100 and the upper conveyance roller 102).
Gripping force) can be adjusted. The compression coil spring 122 is normally adjusted to have such a biasing force that the photographic printing paper 12 can be sandwiched and transported, and that the rugged surface does not remain on the photographic printing paper 12 after the transportation.

When the lower transport roller 100 rotates, the upper transport roller 102 rotates in the opposite direction, and the photographic paper 12 is sent out. At this time, the photographic printing paper 12 is bent in an uneven shape by the convex portions 105 and the concave portions 111 and passes between the rollers. Therefore, even when the punching of the photographic printing paper 12 by the moving blade 60 is insufficient, the photographic printing paper 12 bends so as to separate the remaining connecting portion between the punching portion 1A and the punching residual portion 12B, and the punching portion 12A is completely removed. Remaining blank 12
It is designed to be separated from B.

Separation guides 104 are arranged at the outlets of the lower conveyance roller 100 and the upper conveyance roller 102. One side 104A of the separation guide 104 is fixed to the machine base 44, and arms 110A and 110B extending from the one side correspond to both sides of the unpunched portion 12B of the printing paper 12 and project upward.

Therefore, the punching portion 12A is provided between the arms 110A and 110B.
The punching portion 12A passes between the arms 110A and 110B and is stored therein, as shown in FIG.

Next, the operation of this embodiment will be described.

The image is printed by a pre-process (not shown), and the developed printing paper 12 is sent between the winding roller 16 and the pressing belt 18 and between the fixed base 26 and the movable base 28.

Here, when the motor 94 rotates, the connecting rod 76 lowers the moving base 28 by the rotation of the eccentric cam 88, whereby the moving blade 60 is pressed against the seat plate 34. Therefore, the printing paper 12 is separated into the punching section 12A and the punching remaining section 12B.

After the punching, the movable table 28 is raised, and the punching residual portion 12B receives a tensile force by the lower conveying roller 100 and the upper conveying roller 102, and is fed toward the separation guide 104. Further, the punching portion 12A is also driven by the lower roller 50 and the upper roller 96, and is sent out together with the punching residual portion 12B even though it is separated from the punching residual portion 12B. By the way,
Even when the punching portion 12A is not completely separated from the punching residual portion 12B, they are reliably separated when passing between the lower conveyance roller 100 and the upper conveyance roller 102. That is, since the convex portion 105 and the concave portion 111 are formed on the lower conveying roller 100 and the upper conveying roller 102, the remaining connecting portion is separated and the photographic paper 12 is bent in an uneven shape and the punching portion 12 is formed.
A and the unpunched portion 12B are forcibly separated and pass between these rollers.

Further, in this case, since both the punching portion and the punching residual portion are nipped and conveyed by the lower conveying roller 100 and the upper conveying roller 102, even if the width of the punching residual portion is extremely narrow, it is not cut. . Further, the clamping force of the photographic printing paper 12 between the lower conveyance roller 100 and the upper conveyance roller 102 is the bolt 1
It can be adjusted by rotating 20
Even when the paper quality of No. 2 is changed, the optimal clamping force can be set so that the uneven surface does not remain after being conveyed.

When the photographic paper 12 reaches the separation guide 104, the unpunched portion 1
2B is guided by the separation guide 104 and moves upward.
On the other hand, the punching part 12A goes straight on and is accumulated. For this reason, the separation guide 104 appropriately separates the punching portion 12A and the blanking portion 12B, the blanking portion 12A is used as a product, and the blanking portion 12B is wound around a roller or the like (not shown) and discarded. .

As described above, in the present embodiment, the photographic printing paper 12 can be conveyed by the lower conveying roller 100 and the upper conveying roller 102, and at the same time, the punching portion and the unpunched portion can be separated.

In this embodiment, the winding roller 16 and the lower roller 5
However, the present invention is not limited to this, and the conveying speed by the enlarged diameter portion 52 of the lower roller 50 is different from that of the winding roller 16 and the lower conveying roller 100. The configuration may be changed. In this case, the punching portion 12A and the blanking portion 12B are more easily separated.

[Effects of the Invention] As described above, the thin material punching cutter according to the present invention is
A thin material punching cutter that conveys a punching portion and a punching remaining portion punched by a punching cutting portion by a pair of rollers, wherein a peripheral surface of one of the pair of rollers is provided around an axis. A plurality of ring-shaped protrusions are formed at predetermined intervals along the axis, and a plurality of recesses are formed on the peripheral surface of the other roller to receive the protrusions, respectively, and when sandwiching the punching portion and the punching residual portion, Since the punching part is bent, even if the punching part and the unprinted part of the printed image are connected without being completely separated at the time of punching, the above-mentioned rollers will finally complete the cutting regardless of the size of the uncut part. In addition, even if the size of the punched part is different, it can be handled without requiring the production or replacement of a special separation type, which reduces the number of parts and reduces the cost. Having.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a thin material punching cutter according to the present invention, FIG. 2 is a sectional side view of FIG. 1, FIG. 3 is an exploded perspective view showing an arrangement state of rollers, and FIG. Is an enlarged perspective view of the roller, and FIG. 5 is a sectional view of the roller. 10 ... Punching cutter, 12 ... Printing paper, 12A ... Punching part, 12B ... Punching residual part, 100 ... Lower carrying roller, 102 ... Upper carrying roller, 103 ... Skin part, 105 ... Convex Part, 109 ... Skin part, 111 ... Recessed part.

Claims (1)

[Claims] 1. A punching cutter for thin-walled material in which a punching portion punched by a punching cutting portion and a punching remaining portion are sandwiched by a pair of rollers and conveyed, and a peripheral surface of one of the pair of rollers is provided. A plurality of ring-shaped protrusions are formed around the axis at predetermined intervals along the axis, and a plurality of recesses are formed on the peripheral surface of the other roller to receive the protrusions, respectively. A punching cutter for thin-walled material, characterized in that the punching portion is bent when sandwiched.