JPH0192098A - Thin material punched residual section separating mechanism - Google Patents

Abstract

PURPOSE: To separate a punched part made up by a punching edge and a receiving member exactly from the unpunched part by installing a separating means for separating the punched part from the unpunched part after being curved at the time of conveying it by way of holding both sides of the unpunched part after punching. CONSTITUTION: When a punched part 12A after being separated and a unpunched part 12B both are fed into space between two pinch conveyor rollers 84 and 312, the punched part 12A is flexed into curvature by two large diametral parts 84B and 312B installed in an intermediate part between these pinch conveyor rollers 84 and 312, as being dislocated in the axial direction, whereby it is separated from the unpunched part 12B being held between both these large diametral parts 84A and 312A of the pinch conveyor rollers 84 and 312. The unpunched part 12B further delivered is guided by a guide plate and shifted upward aslant, while the punched part 12A is held between these rollers at the intermediate part, and both the sides are largely flexed by a rubber arm of a turning wheel, and fully separated from the unpunched part 12B.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thin material punching residue separation mechanism used for cutting thin materials such as photographic light-sensitive materials.

[Background technology]

To create a photographic print of a photographic image, a roll of unused photographic paper is pulled out, an image is printed on it from a negative film, etc., and the resulting print is developed using a cutting blade with a straight edge. Each image is cut and separated.

However, there are cases where an image portion is punched out into a predetermined shape from a printed image to produce a product. This is mainly used for driver's licenses, ID cards, etc.

In this case, in order to punch out the required image portion from a long print, a cutter is required that has a male mold that matches the punching shape and a female mold that accommodates the male mold. The cutter for this purpose is large and expensive, and it is necessary to adjust the meshing dimensions of the female and male types during installation.

For this reason, the present applicant has already realized that when punching a predetermined shape from a thin material to make a product, it is not necessary to manufacture a female die.
We have proposed a cutter for punching thin materials that does not require size adjustment (see Japanese Patent Application Nos. 61-203476 and 203477).

In such a cutter, the punching blade is pressed against the workpiece,
The punching blade and the receiver sandwich the print between the members and punch out a punching portion from the center of the print. Therefore, it is not necessary to manufacture a female mold, and manufacturing and dimensional adjustment are simplified.

However, with a cutter having this structure, the punched portion may be cut incompletely compared to the case where the punched portion is punched out by meshing the female die and the male die. That is, since the punching blade shears the print by being pressed against the support plate, a part of the shearing portion may connect the punching portion and the punching remaining portion. Therefore, in extremely rare cases, there is a possibility that the punched part is moved together with the remaining punched part, and a means for reliably separating the punched part from the remaining punched part is desired.

In consideration of the above facts, the present invention provides a thin-walled material punching remainder separation mechanism that can reliably separate the punched portion from the punched remainder even when punching thin-walled materials by combining the punching blade and the receiver with the members. That is the purpose.

[Summary and operation of the invention]

The first invention of the present application provides a conveyance means that pinches and conveys both sides of the punched residue after punching, and a separating means that curves and separates the punched part corresponding to the punched residue in the pinched state from the punched residue. It is characterized by having the following.

Therefore, in the present invention, even if the cutter that punches out the intermediate part by pressing the punching blade against the thin material is in an uncertain punching state where the punched part and the punched remaining part are partially connected, the punched part can be separated. On the other hand, since the remaining punched portion is held between both sides by the conveying means, a tensile force acts between the punched portion and the remaining punched portion, and this inadvertently connected punched portion The part and the remaining punched part can be reliably separated.

A second invention of the present application is a conveying means that pinches and conveys both sides of the punched residue after punching, and a separating means that bends and separates the punched part corresponding to the punched residue held in the pinched state from the punched residue. and a guide means for separating the remaining punched portion from the punching portion, inverting it, and then discharging it through above the punching portion.

Therefore, in this invention, the punching residue can be reliably separated from the punching part, and the punching residue can be continuously discharged through the upper part of the punching part, making it extremely easy to dispose of the punching residue. become.

[Embodiments of the invention]

FIG. 2.3 shows an embodiment of a cutter 10 to which the present invention is applied. In this cutter IO, an image is printed and developed in a pre-process (not shown), and the photographic paper 12 is conveyed between a pair of side plates 14 in the six directions of arrows.

A winding roller 16 is disposed between the pair of side plates 14, and the photographic paper 12 is pushed around the winding roller 16 by a pressing belt 18.
After being crimped, it is transported horizontally in the direction of arrow B. The pressure belt 18 is endless and is wound around winding rollers 20, 22, and 24, and the winding roller 20 is rotated by the driving force of a motor (not shown) or the like.

The photographic paper 12 fed out from between the winding roller 16 and the pressing belt 18 is fed into a punching section comprised of a receiving member 26 and a punching blade 28.

As shown in FIG. 4, the receiving member 26 is connected to a pair of supporting plates 30.
．． 32 are bonded to each other with a rubber plate 34 in between, and the punching force can be absorbed by the support plate 30 approaching the support plate 32 while elastically deforming the rubber plate 34.

As shown in FIG. 3, the member 26 consists of an upper support 36 which is horizontally extended between the upper ends of the side plate 14, and a pair of holders 38 which are fixed to the lower surface of the upper support 36. It is designed to be held in between.

That is, a pair of holders 38 are provided parallel to the conveyance direction of the photographic paper 12 across the conveyance path of the photographic paper 12, and a rib 38A protruding from the opposing surface is disposed between the upper support base 36 and the member 26.
The receiver holds the member 26 by pinching both sides of the member 26. Therefore, the receiver member 26 is the photographic paper 12.
It can be extracted from between the upper support stand 36 and the rib 38A in a direction parallel to the conveyance path.

This receiver is provided with a stopper plate at the downstream end of the photographic paper 12 in the transport direction to prevent the member 26 from coming off when the member 26 is installed between the upper support stand 36 and the rib 38A. 40 are provided. This stopper plate 40 is pivotally supported on the side surface of the upper support base 36 by screws 42, and as shown in FIG. The receiver prevents the member 26 from falling off. In this state, the stopper plate 40 has a notch 40A formed therein so as not to obstruct passage of the photographic paper 12.

As shown in FIG. 5, the upper support base 36 is provided with a lever 44 for pushing out the member on its upper surface.

The member pushing lever 44 protrudes in the radial direction from one end of the outer periphery of a cylinder 46, and this cylinder 46 is connected to the upper support base 36.
It is fixed to the upper end of a rotating shaft 48 that vertically passes through the. An eccentric cam 50 is fixed to the other end of the rotary shaft 48 that protrudes below the upper support base 36, and the outer peripheral surface of the eccentric cam 50 corresponds to the end of the member 26.

Therefore, by rotating the receiver member pushing lever 44 in the direction of arrow E together with the rotating shaft 48, the eccentric cam 50 can push the receiver member 26 in the downstream direction of conveyance of the photographic paper 12. This receiver is a member and the lever 44 is the upper support base 3.
6, the receiver allows the member 26 to be inserted to the normal insertion state, and when it is rotated in the direction of arrow E and contacts the stop pin 53, the receiver allows the member 26 to be inserted into the normal insertion state. The eccentric cam 50 can be rotated to the maximum extrusion state.

As shown in FIG. 3.4, the holder 38 has ribs 38B protruding downward from the beam 38A in parallel to each other.
The space between A and the rib 38B is used to accommodate the side edge of the photographic paper 12. As a result, both ends of the conveyed photographic paper 12 are reliably guided and positioned accurately.

As shown in FIG. 5, a through hole 54 is formed in the receiver member 26 for insertion of a feed roller 56 (FIG. 2.3). The feed roller 56 has a receiver that comes into contact with the photographic paper 12 extending below the member 26.
It has the role of providing a feed driving force to the punching portion 12A after the punch is punched out.

For this reason, an opening 36A is also formed in the upper support base 36, and the feed roller 56 is connected to the bracket 60 within this opening 36A.
It is pivoted to. A gear 62 is coaxially fixed to the feed roller 56 and meshes with the gear 64. This gear 64 is fixed to a rotating shaft 66, and this rotating shaft 66
is a rotating bracket 6 to which a cone-shaped bracket 60 is fixed.
The hooks are passed to the leg plates 68A and 68B of No.8. One end of this rotating shaft 66 protrudes from the leg plate 68B, and a gear 67 is fixed thereto to receive the driving force of the motor 94 via a transmission mechanism (not shown).

The leg plates 68A, 68B are pivotally supported by bolts 70 to the upper support base 36, and are rotatable in the direction of arrow F for repair work from the operating state shown in FIG. 2.3.

In this rotating state, the feed roller 56 is pulled out from the through hole 54 of the member 26, but when the rotating bracket 68 is rotated in the direction opposite to the arrow F direction, the feed roller 56 is pulled out from the through hole 54 of the member 26.
6 passes through the opening 36A of the upper support base 36 and the receiver is attached to the member 26.
0 through hole 54. This rotating bracket 68 is provided with a stopper (not shown) to prevent it from accidentally rotating in the direction of arrow F from the state shown in FIG.

Further, in the state of rotation in the direction of arrow F, the swinging hook 83A shown in FIG. 2 engages with a protrusion 83B protruding from the leg plate 68A of the swing bracket, so that this swinging state can be maintained. . This swinging hook 83A is connected to the protrusion 83.
By removing it from B, the rotating bracket 68 can be returned to the state shown in FIG.

A ring groove 56A is formed in the center of the feed roller 56 in the axial direction, and the receiver runs through a guide portion 58 that extends along the photographic paper conveyance direction into the through hole 54 of the member 26. The guide portion 58 divides the through hole 54 into two from the center, and is designed to prevent the tip from getting caught on the end surface 54A of the through hole 54 even if the photographic paper fed in the direction of arrow B is curled. ing.

A nipping conveyance roller 84 shown in FIG. 1.9 is arranged between the leg plates 68A and 68B in correspondence with the lower surface of the photographic paper 12 that is sent out after punching. This nipping conveyance roller 84
The vicinity of both ends of the central shaft 86 that protrudes integrally is the leg plate 68.
A, 68B is pivotally supported, and one end thereof is connected to the leg plate 68B.
A gear 88 is fixedly protruding from the top. This gear 88
In the state shown in FIG. 2.3 in which the rotating bracket 68 is in an operating state, it meshes with a gear 90 that is pivotally supported on the outside of the side plate 14. This gear 90 is driven by a motor 94.

One end of a pair of rotating arms 98 is pivotally supported in the middle part of the central shaft 86, and a support shaft 1 is attached to the tip of the rotating arm 98.
00 is pivotally supported, and a roller 300 attached to the axial center of this support shaft 100 is attached to a leg plate 68 as shown in FIG.
A support shaft 302 that is supported between A and 68B comes into contact with the roller 304 to sandwich the punched portion 12A and apply a conveying force. Therefore, a gear 306 is fixed to the protrusion of the support shaft 302 from the leg plate 68A, and this gear 306 meshes with a gear 307 (FIG. 1) fixed to the central shaft 86.

In addition, a pair of rotating arms 3 are provided at the axially intermediate portion of the support shaft 302.
One end of 08 is pivotally supported. These pivot arms 30
8, a support shaft 310 is supported as shown in FIG.
12 are formed. The swing arm 98 and the swing arm 308 are substantially parallel, and a tension coil spring 314 is suspended between them. Therefore, the rotating arm 308 and the rotating arm 98 are biased toward each other around the central axis 86 and the support shaft 302, and the nipping conveyance roller 312 is moved toward the nipping conveyance roller 84, and the roller 300
is subjected to a tensile force on roller 304.

As shown in FIG. 1, the nipping conveyance roller 84 and the nipping conveyance roller 312 have large diameter portions 312A and 84A at both ends in the axial direction.
Both sides of the remaining punched portion 12B are held between them. Further, as shown in FIG. 1, a large diameter portion 84B is also formed at the axial center of the nipping and conveying roller 84, while the nipping and conveying roller 312 has a large diameter portion 84B at a different axial position from the large diameter portion 84B. A pair of large diameter portions 312B are formed equidistant from portion 84B. These large diameter portions 84B, 312B are sized so that some of them interfere with each other when viewed from the axial direction. Therefore, as shown in FIG. 1, the center part of the punched part 12A after punching is bent to one side (upward) by the large diameter part 84B, and the vicinity of both measuring parts is bent by the large diameter part 31.
Since it is bent to the other side (downward) by 2B and curved,
A force is generated to forcibly separate both side portions from the punched remaining portion 1'2B held between the large diameter portion 84A and the large diameter portion 11312A.

The supporting shafts 100 and 302 disposed on the downstream side of the pinching conveyance roller 84 and the pinching conveyance roller 312 are similarly subjected to force in the direction of approaching each other due to the tensile force of the tension coil spring 314. Rollers 300 and 304 are punching section 1
The middle part of 2A is held between them. The outer diameter of the scroll roller 304 is slightly larger than that of the large diameter portions 84A and 312A, and its circumferential speed is faster than that of the large diameter portions 84A and 312A. The structure is such that it is easy to separate the punched portion 12A from the remaining punched portion 12B by feeding it as quickly as possible.

Further, a pair of rotating wheels 316 are attached to the support shaft 302 on both sides of the roller 304 . A plurality of rubber arms 318 protrude radially from the outer periphery of these rotating wheels 316 . The tips of these rubber arms 318 are formed larger than the outer shape of the roller 304, and therefore the seventh
As shown in the figure, the punched portion 12A is curved with its both sides largely bent. This punching part 12A
The amount of bending is made larger than the amount of bending of the punched portion 12A shown in FIG. 1, so that the punched portion 12A is reliably separated from the remaining punched portion 12B. The reason why the amount of bending of the punching section 12A shown in FIG. 1 is smaller than that shown in FIG. 7 is to prevent the amount of bending of the photographic paper 12 from increasing in the punching section and to eliminate cutting defects.

Note that, as shown in FIG. 2, the roller 304 is
00 in the photographic paper conveyance direction, and the tangent to the roller 300 is directed diagonally downward. For this reason, when the punched portion 12A is sent out from between the rollers 300 and 304, it is rotated so that it is taken out in the direction of the arrow J in FIG.

As shown in FIG. 7, a guide arm 320 is provided on the outside in the axial direction of the pair of rotating wheels 316, and this guide arm 320 is arranged below the punched remaining portion 12B sent out from between the large diameter portions 84A and 312A. There is. Therefore, these guide arms 320 have the role of guiding the punched remaining portion 12B and sending it out between the nipping rollers 330, 332.

These clamping rollers 330 and 332 are mounted on support shafts 334 on which the pair of clamping rollers 330 corresponding to the upper side of the punched part 12A are supported by being hooked to leg plates 68A and 68B as shown in FIG. 8.9. attached to. Also, the punching part 12A
A pair of pinching rollers 332 corresponding to the lower side of the swivel arms 336 and 338 are each pivotally supported via a support shaft 333 to the tip of a swing arm 336 and 338, and these swing arms 336 and 338 are
0 and is attached to the leg plates 68A and 68B.

The pivot arms 336 and 338 have leg plates 68A and 6, respectively.
A tension coil spring 342 is interposed between the roller 8B and the clamping roller 330 to press the clamping roller 332 toward the clamping roller 330. A gear 344 is fixed to the support shaft 334 of the nipping roller 330 on the outside of the leg plate 68A, so that it receives rotational force from the gear 307 (FIG. 1).

For this reason, the pinching roller 330 and the pinching roller 332 pinch both sides of the punched remaining portion 12B to be sent out, and send it out between the pair of guide plates 346 and 348. In this case, the nipping roller 332 is different from the nipping roller 330 in that it is not pivotally supported on the - support shaft, and since there is no supporting shaft between these nipping rollers 332, the punched remaining portion 12B is unnecessarily curled. Even if a is sent, this punching remainder a'
It does not interfere with the center part in the width direction of 1s12B and does not hinder its movement.

The guide plate 346 and the guide plate 348 are formed in a double U-shape to guide the punched remaining portion 12B sent diagonally upward, and as shown in FIG. It is extended and bent in the direction away from the photographic paper transport path on the upstream side of the support shafts 333 and 340, so as to smoothly guide the photographic paper. In addition, these information boards 346
．． The intermediate portion of 348 is adapted to invert the punched remaining portion 12B and then guide it horizontally above the punching blade 28, that is, above the punching work section, and send it out onto the bracket 356. Leg plates 356A and 356B of this bracket 356 are bent at right angles from both sides and are fixed to leg plates 68A and 68B of the rotating bracket 68, respectively. Since the punched remaining portion 12B guided in the horizontal direction is continuous, it can be guided as shown by arrow M in FIG. 2 and stored in the waste box.

In addition, in the portion where the remaining punched portion 12B is guided in the horizontal direction above this punching work section, a leg plate 68A is provided as shown in FIG.
, 68B, a support shaft 352 is supported between the support shaft 3
The remaining punched portion 12B is conveyed onto a roller 354 that is fixed to the roller 52. A support shaft 358 is pivotally supported on the leg plates 68A and 68B and a hook is passed over the roller 354, and a swing arm 36 whose one end is pivotally supported on this support shaft 358
Rollers 364 and 366, which are pivotally supported at the tip of the
It is designed to hold both sides of the Since these rollers 364 and 366 do not have support shafts between them, the remaining punched portion 12B can be guided without interference even if the remaining punched portion 12B is significantly curled.

Further, one end of the support shaft 352 protrudes from the leg plate 68B and the gear 36
8 is fixed. This gear 368 rotates in response to the driving force from the motor 94, and drives the punched remaining portion 12B in the longitudinal direction.

The punching blade 28 shown in FIG. 4 is adapted to be mounted on the lifting platform 110. This elevating table 110 is arranged in a horizontal state, and a leaf spring 114 is fixed with screws 116 to the upper end of a block 112 fixed to both sides. One end of these leaf springs 114 protrudes in a direction closer to each other than the blocks 112, and the outer frame 118 of the punching blade 28
The outer frame 118 is pressed against and held by the lifting platform 110 in correspondence with the notch 120 formed in the .

A movable blade main body 122 is housed in the inner peripheral portion of the outer frame 118. The movable blade main body 122 is made by bending a long plate material into a rectangular frame shape, and an inner frame 124 is press-fitted inside, so that the movable blade main body 122 is formed between the outer frame 118 and the inner frame 124.
is fixed. The upper end of the movable blade main body 122, which is the cutting edge, protrudes from the upper ends of the outer frame 118 and the inner frame 124, and when raised, the receiver is pressed against the member 26 and the punching portion 12Δ is punched out from the photographic paper 12. It has become.

One end of the leaf spring 126 is attached to the top surface of the inner frame 124 with a screw 128.
It is fixed in place. The leaf spring 126 is gradually bent in a direction away from the inner frame 124 toward its tip, and in a free state is closer to the transport path of the photographic paper 12 than the tip of the movable blade main body 122, that is, closer to the top.

Therefore, when the punching blade 28 is raised to punch out the middle part of the photographic paper 12, the leaf spring 126 is elastically bent and enters below the upper end of the movable blade main body 122, so that it does not interfere with the punching operation. .

However, when the punching blade 28 separates from the member 26 and moves downward, it returns elastically and protrudes beyond the upper end of the movable blade body 122, pushing out the punching portion 12A from the movable blade body 122. There is.

A sponge plate 130 is attached to the outer frame 118 on the upstream side of the movable blade body 122, and its upper end protrudes higher than the tip of the movable blade body 122.

This sponge plate 130 prevents the leading end of the photographic paper 12 from hitting the movable blade main body 122 when the leading end of the photographic paper 12 is moved in the direction of arrow B along the photographic paper transport path. The receiver has a role of guiding between the member 26 and the member 26. However, this sponge plate 130 also has a receiving member 2.
When the punching blade 6 and the punching blade 28 are in close contact with each other, the punching blade 28 bends elastically, so that the punching operation of the photographic paper 12 is not hindered.

A circular through hole 132 and rectangular through holes 134 and 135 are formed in the leaf spring 126, the inner frame 124, and the lifting platform 110, respectively, through which the feed roller 136 passes. This feed roller 136 is rotatably supported between standing plates 140 and 142 of a rotating bracket 138 shown in FIG. 2.3.

One end of the rotating bracket 138 is pivotally supported by a bin 144 to the lifting platform 110, and the vicinity of the other end is supported by the operating section 13.
It is 8A. A spring locking piece 146 is fixed to the intermediate portion of the rotating bracket 138, and a tension coil spring 148 is interposed between the rotating bracket 138 and the lifting platform 110, as shown in FIG.

This allows the feed roller 136 to pass through the rectangular through hole 135.1.
34, so that it passes through the circular through hole 132 and is pressed against the feed roller 56.

When the rotating bracket 138 rotates clockwise in FIG. 2, the feed roller 136 is pulled out from the circular through hole 132 and the rectangular through hole 134, allowing the punching blade 28 to be pulled out in the direction of arrow B. There is.

For this purpose, an intermediate portion of a rotary lever 154 is pivotally supported at the lower part of the lifting platform 110 by a pin 152, as shown in FIG. One end of this rotary lever 154 serves as a pressing portion 154A corresponding to the upstream side of the punching blade 28 in the photographic paper conveyance direction;
The other end is an operating section 154B that protrudes downstream of the lifting table 110 in the photographic paper transport direction. Therefore, when the rotary lever 154 is rotated in the direction of the arrow in FIG.
It is designed to be pushed out.

However, in the state shown in FIGS. 6 and 2.3 in which the punching blade 28 is accurately loaded onto the lifting platform 110, the receiver prevents the member 26 from being removed so that the punching blade 28 does not come off inadvertently. A stopper plate 40 corresponds thereto. That is, as shown in FIG. 2, the stopper plate 40 has a notch 40.
A protrusion fm40B below A interferes with one end of the punching blade 28 when viewed in the photographic paper conveyance direction, and prevents the punching blade 28 from being pulled out in the direction of arrow B.

Further, as shown in FIG. 6, this rotary lever 154 has a stopper 156 protruding between the pressing portion 154A and the pin 152, and this stopper 156 prevents the rotary lever 154 from being rotated in the direction of the arrow in FIG. In this state, as shown by the imaginary line in FIG. There is.

Below the lifting platform 110, a lower support platform 170 is horizontally extended between the side plates 14. A guide sleeve 174 of a lifting shaft 172 that projects downward from the lifting table 110 is fixed to the lower support table 170. A lifting plate 176 is horizontally fixed to the lower end of the lifting shaft 172 that projects downward from the guide sleeve 174, and a lifting block 178 is fixed to the lifting plate 176. This lifting block 178 is placed on the cam 180,
The cam 180 is fixed to a cam shaft 182 that extends between the side plates 14. The cam shaft 182 rotates in response to the driving force of a motor 184 fixed to the outside of the side plate 14, thereby moving the lifting table 110 via the lifting shaft 172 to the punching blade 28.
It is designed to move up and down along with it.

Note that a tension coil spring 186 is interposed between the elevating plate 176 and the leg plate 14 to receive a force in the direction of pushing it toward the cam 180, but the tension coil spring 186 is omitted and the elevating plate 176 is lowered by its own weight. Good too.

Next, the operation of this embodiment will be explained.

The photographic paper 12, on which an image has been printed and developed in a pre-process (not shown), is sent in the direction of the arrow in FIG. It is sent out between the member 26 and the punching blade 28.

When the motor 184 is rotated here, the elevating shaft 172 is raised together with the elevating table 110 due to the rotation of the cam 180.

As a result, the punching blade 28 is pressed against the support member 26, and the punching portion 12A of the photographic paper 12 is punched out, and the punching remaining portion 12B is punched out.
separated from In this case, the leaf spring 126 is elastically bent and enters the movable blade main body 122.

During this punching operation, the receiver is attached to the movable blade body 12 at the member 26.
Since the support plate 30 pressed by 2 moves while compressing the rubber plate 34, the overstroke of the movable blade main body 122 can be absorbed and reliable punching work can be performed.

After punching, when the motor 184 further rotates, the cam 180
By the zero rotation, the punching blade 28 separates from the member 26 and descends. During this descent, the leaf spring 114 protrudes from the movable blade main body 122 due to its elastic force, so the punched portion 12A
Even if it is completely cut and separated from the punched remaining portion 12B, it will not remain in the movable blade main body 122.

Since the feed roller 56 receives the driving force of the motor 94, it rotates counterclockwise in FIG. 1 and feeds the photographic paper 12 in the direction of arrow B. In this case, since the feed roller 136 can freely rotate, the feed roller 136 also rotates in synchronization with the feed roller 56 to feed the photographic paper 12.

When the photographic paper 12 is moved, the tip of the photographic paper 12 and the end face perpendicular to the conveyance direction of the punching section 12A correspond to the inner peripheral surface of the circular through hole 132 formed in the leaf spring i14. is circular, so even if the leading edge of the photographic paper 12 or the remaining punched portion 12B is curled, the photographic paper 1
2 will not get caught in this circular through hole 132. Further, in the member 26, the receiver has a guide portion 58 at the center of the through hole.
is formed, so the leading edge of the photographic paper and the remaining punched part 12
B will not get caught in this through hole either.

When the separated punched part 12A and the remaining punched part 12B are sent out between the clamping conveyance rollers 84 and the clamping conveyance rollers 312, the punched part 12A becomes the large diameter part 8 as shown in FIG.
4B and the large diameter portion 312B, and is bent and curved, and is separated from the punched remaining portion 12B held between the large diameter portion 84A and the large diameter portion 312A.

The remaining punched portion 12B that is further sent out is the guide plate 3.
20 and move diagonally upward, - the blade lever extraction part 12A
Since the intermediate portion is held between the rollers 300 and 304, and both side portions are largely bent by the rubber arms 318 of the rotary wheel 316, it is reliably separated from the punched remaining portion 12B. The separated punched parts 12A fall downward under their own weight as shown by arrow J in FIG. 2 and are accumulated. Further, the remaining punched portion 12B guided upward is connected to the pinching roller 330 and the pinching roller 3.
32 moves upward between the guide plate 346 and the guide plate 348, passes above the punching work section, receives driving force from the rollers 354 and 364, 366, moves in the direction of arrow M, and is accumulated. Ru.

In the above embodiment, as shown in FIG. 2, instead of the guide plates 346 and 348, guide plates 346A and 348A are provided to guide the punched remaining portion 12B sent out from the clamping rollers 330 and 332 in a substantially horizontal direction. Good too.

〔Effect of the invention〕

Since the present invention has the above-mentioned configuration, even if the punching structure includes a punching blade and a receiving member, it has an excellent effect of reliably separating the punched portion from the remaining punched portion.

[Brief explanation of the drawing]

FIG. 1 shows a cutter to which an embodiment of the present invention is applied.
2 is a longitudinal sectional view showing the cutter of this embodiment, FIG. 3 is a sectional view taken along the line ■-■ in FIG. 5 is a cross-sectional view corresponding to the line ■-■ in FIG. 2, FIG. 6 is a cross-sectional view corresponding to the line ■-■ in FIG. 2, and FIG. 7 is a cross-sectional view taken along the line ■-■ in FIG. 8 is a right side view of FIG. 2, and FIG. 9 is an exploded perspective view of a part of FIG. 2, showing means for separating the punched portion and the remaining punched portion. 12... Photographic paper, 12A... Punching part, 12B... Punching remaining part, 26... Receiving member, 28... Punching blade, 84... Nipping conveyance roller, 84A, 84B. ...Large diameter portion, 300.304...Roller, 312...Nipping conveyance roller, 312A, 312B...Large diameter portion, 316...Rotating ring, 318...Rubber arm.

Claims (3)

[Claims] (1) A thin-walled material punching cutter that punches out the middle part of a long thin-walled material by pressure contact with a punching blade while conveying the long thin-walled material in the longitudinal direction, and includes a conveying means that clamps and conveys both sides of the punched remaining part after punching, and the clamping member. 1. A thin-walled material punching residue separation mechanism, comprising: separating means for curving and separating a punching part corresponding to the punching residue in a state from the punching residue. (2) The conveying means is a pair of rollers that sandwich both ends of the punched residue, and the separating means is a plurality of large diameter portions formed in the middle of the pair of rollers, and these large diameter portions are The thin material punching residue separation mechanism according to claim 1, wherein the mechanism is provided on a roller and is located at different positions in the axial direction. (3) A thin-walled material punching cutter that punches out the middle part of a long thin-walled material by pressure contact with a punching blade in a punching work section while conveying the long thin-walled material in the longitudinal direction in a substantially horizontal state, and the remaining punched portion on both sides after punching. a conveying means for pinching and conveying; a separating means for bending and separating a punching part corresponding to the punched remainder in the clamped state from the punching remainder; and a separating means for separating the punched remainder from the punching part and inverting it; A thin-walled material punching residue separation mechanism, comprising: a guide means for discharging the punched material through the upper part of the punching section.