JPH0561078B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thin material punching cutter for cutting thin materials such as photographic materials.

[Background technology]

To create a 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 engagement dimensions of the female and male types during installation.

For this reason, the present applicant has already proposed a cutter for punching thin-walled materials that does not require the production of a female mold or the need for dimension adjustment when punching a predetermined shape from thin-walled materials to produce a product (particularly Gansho 61-203476,
(See No. 203477).

In such a cutter for punching thin material, by passing a feed roller through the cutter and making contact with the thin material, the punched portion punched from the thin material can be conveyed together with the remaining punched portion. However, if the feed roller is provided inside the cutter, it is necessary to remove the feed roller before removing the cutter when replacing or repairing the cutter, which makes the work complicated and takes a long time.

The present invention has been made in consideration of the above facts, and an object of the present invention is to obtain a cutter for punching thin-walled materials that can be easily repaired even when a feed roller is provided for conveying the punched portion of thin-walled materials through the punching means. It is.

[Summary and operation of the invention]

The present invention provides punching means that are provided on both sides of a thin material conveyance path and punch out a part of the thin material in close proximity to each other, and a pair of clamping rollers that pinch and convey the punched portion and the remaining punched portion of the thin material. and a pair of feed rollers that pass through the extraction means and sandwich the thin material, and a repair guide means that separates one of these feed rollers and the pair of nipping rollers from the thin material conveyance path. It is characterized by

Therefore, in the present invention, when a thin-walled material is held between the punching means and a punched portion is punched from the thin-walled material,
A feed roller and a nipping roller passing through the punching means clamp the punched portion of the thin material and transport it along with the remaining punched portion along the thin material conveyance path. Therefore, the punched part does not come off from the remaining punched part and cannot be transported.

At the time of repair, one of the feed rollers and the nipping roller are retracted from the thin material conveyance path by the repair guide means, so that the punching means can be easily replaced.

[Embodiments of the invention]

1 and 2 show a cutter 10 to which the present invention is applied.
An example is shown. In this katsuta 10,
After an image has been printed and developed in a pre-process (not shown), the photographic paper 12 is conveyed between a pair of side plates 14 in the direction of arrow A.

A winding roller 16 is arranged between the pair of side plates 14, and after the photographic paper 12 is pressed onto the winding roller 16 by a pressure belt 18, it is conveyed horizontally in the direction of arrow B. ing. The pressure belt 18 is endless and has winding rollers 20, 2.
2, and 24, and the winding roller 2
0 rotates under 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 between the receiving member 26 and the punching blade 28.

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

As shown in FIG.
6 and a pair of holders 38 fixed to the lower surface of the upper support base 36. That is, a pair of holders 38 are provided parallel to the conveying direction of the photographic paper 12 across the conveyance path of the photographic paper 12, and the ribs 38A protruding from the opposing surfaces are connected to the upper support base 3.
The receiving member 26 is held by sandwiching both sides of the receiving member 26 between the receiving member 6 and the receiving member 6. Therefore, the receiving member 26 can be extracted from between the upper support base 36 and the opening 36A in a direction parallel to the transport path of the photographic paper 12.

This receiving member 26 is connected to the upper support base 36 and the rib 38A.
A stopper plate 40 is provided on the upper support base 36 at the downstream end in the conveying direction of the photographic paper 12 so that the receiving member 26 does not come off when it is attached between the upper support base 36 and the upper support base 36 . 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. This prevents the receiving 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 FIGS. 3 and 5, the upper support base 36
A receiving member pushing lever 44 is provided on its upper surface. The receiving member pushing lever 44 projects in the radial direction from one end of the outer periphery of a cylinder 46, and the cylinder 46 is fixed to the upper end of a rotating shaft 48 that vertically passes through the upper support base 36. An eccentric cam 50 is fixed to the other end of the rotary shaft 48 that protrudes below the upper support 36, and its outer peripheral surface corresponds to the end of the receiving member 26.

Therefore, by rotating the receiving member pushing lever 44 in the direction of arrow E together with the rotating shaft 48, the eccentric cam 50 can push the receiving member 26 in the downstream direction of conveyance of the photographic paper 12. When the receiving member pushing lever 44 is in contact with the stop pin 52 protruding from the upper support base 36, it is possible to insert the receiving member 26 to the normal insertion state, and when it is rotated in the direction of arrow E, it is pushed into the stop pin 53. When abutting, the eccentric cam 50 can be rotated to the maximum extrusion state of the receiving member 26.

As shown in FIGS. 2 and 4, the holder 38 has ribs 38B protruding below the ribs 38A in parallel to each other, and the space between the ribs 38A and the ribs 38B is
It is designed to accommodate the side end of 2. As a result, both ends of the photographic paper 12 being conveyed are reliably guided and positioned accurately.

As shown in FIG. 4, a through hole 54 is formed in the receiving member 26, and a feed roller 56 (FIGS. 1 and 2) is formed in the receiving member 26.
It is designed for insertion. This feed roller 56 is adapted to come into contact with the photographic paper 12 extending below the receiving member 26, and has the role of providing a feed driving force to the punching section 12A after the photographic paper 12 is punched out.

For this purpose, an opening 36A is also formed in the upper support base 36, and the feed roller 56 is pivotally supported on both legs of the U-shaped bracket 60 within this opening 36A. A gear 62 is fixed coaxially 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 spanned over leg plates 68A and 68B of a rotating bracket 68 to which the U-shaped bracket 60 is fixed.

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 to the state shown in FIG. 3. In the state shown in FIG. 3, the feed roller 56 is pulled out from the through hole 54 of the receiving member 26, but when the rotation bracket 68 is rotated in the direction opposite to the direction of arrow F, the feed roller 56 is raised. It passes through the opening 36A of the support base 36 and enters into the through hole 54 of the receiving member 26. When the rotating bracket 68 rotates to the state shown in FIGS. 1 and 2, the L-shaped plate 72 fixed to the inside of the leg plate 68B is inserted into the side plate 14 with screws 74 as shown in FIG.
By engaging with a hook 78 of a stopper 76 which is pivotally supported by a stopper 76, it is possible to prevent the rotation bracket 68 from being inadvertently rotated.

The hook 78 is maintained in a state in which the hook 78 is reliably engaged with the stopper 76 by a tension coil spring 80. Therefore, when the worker wants to rotate the rotating bracket 68 around the bolt 70 in the direction of the arrow F, the hook 78 must be rotated in the direction of the arrow G against the biasing force of the tension coil spring 80. That's fine.

The feed roller 56 has a ring groove 5 in the center in the axial direction.
6A is formed, and the guide portion 58 is stretched over the through hole 54 of the receiving member 26 along the photographic paper conveyance direction.
is running away. The guide portion 58 allows the through hole 54 to extend two minutes from the center, so that even if the photographic paper fed in the direction of arrow B is curled, the leading end will not get caught on the end surface 54A of the through hole 54. It is considered.

A nipping conveyance roller 84 is provided between the leg plates 68A and 68B.
is pivotally supported and corresponds to the lower surface of the photographic paper 12 fed out from between the receiving member 26 and the punching blade 28.
A shaft 86 of this nipping and conveying roller 84 protrudes from the leg plate 68B, and a gear 88 (FIG. 3) is fixed to the tip. This gear 88 is adapted to mesh with a gear 90 pivotally supported on the outside of the side plate 14 when the rotating bracket 68 is in the loaded state as shown in FIGS. 1 and 2. This gear 90 meshes with a gear (not shown) fixed to one end of a rotating shaft 92 that spans between the side plates 14, and the other end of this rotating shaft 92 is connected to a timing belt 96 on the outside of the opposite side plate 14.
This timing belt 96 is driven by a motor 94.

The leg plate 68A is parallel to the nipping conveyance roller 84,
A support shaft 98 is spanned between the support shafts 68B, and the parallel leg plate portion 100A of the rotating bracket 100 is pivotally supported. A nipping and conveying roller 102 is pivotally supported on this rotating bracket 100. This nipping conveyance roller 102 is capable of contacting the nipping conveyance roller 84 in the state shown in FIGS. Photographic paper 12 after punching
The photographic paper 12 is held therebetween, and conveying force is applied to the photographic paper 12 by the driving force of the nipping and conveying rollers 84.

Each of these nipping and conveying rollers 84 and 102 is a stepped roller in which a large diameter portion and a small diameter portion are formed alternately, and the large diameter portion slightly enters the other small diameter portion to separate the punched portion 12A from the remaining punched portion. Although they are designed to be easy to separate, they can also be straight rollers with no unevenness.

Note that a pair of guide plates 1 are provided on the leg plates 68A and 68B.
04 are fixed to each other, and the punching portion 12A guides both sides of the remaining punched portion 12B and sends it out in the direction of arrow H. This punched remaining portion 12B is sent out in the direction of arrow H and then cut into pieces or wound up and discarded. The punched portion 12A is designed to fall in the direction of arrow J under its own weight from between the pair of guide plates 104 after being sent out from between the nipping and conveying rollers 84 and 102.

Further, a group of gears (not shown) for applying driving force from the gear 88 to the rotating shaft 66 is provided on the outside of the leg plate 68A.

The punching blade 28 is adapted to be mounted on the lifting platform 110. This lifting platform 110 is arranged horizontally and has blocks 112 fixed to both sides.
A leaf spring 114 is fixed to the upper end of the plate with screws 116. One end of these leaf springs 114 protrudes in a direction closer to each other than the blocks 112, and the notches 12 formed in the outer frame 118 of the punching blade 28
0, and the outer frame 118 is pressed against and held by the lifting platform 110.

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 fixed between the outer frame 118 and the inner frame 124. It's summery. The movable blade main body 122 has an upper end portion, which is a cutting edge, protruding from the upper end portions of the outer frame 118 and the inner frame 124, and when raised, is pressed against the receiving member 26 and punches out the punching portion 12A from the photographic paper 12. ing.

One end of a leaf spring 126 is fixed to the top surface of the inner frame 124 with a screw 128. The leaf spring 126 is bent in a direction that gradually moves away from the inner frame 124 toward the tip, and in a free state, the movable blade main body 126
It is closer to the transport path of the photographic paper 12 than the leading end of the photographic paper 12, 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 receiving member 26 and reaches downward, it elastically returns to the movable blade main body 12.
It protrudes from the upper end of the movable blade 2 and pushes out the punching part 12A from the movable blade main body 122.

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 moves the leading end of the photographic paper 12 to the 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 movable blade body 122 and the receiving member 2
It has the role of guiding the person between 6 and 6. However, this sponge plate 130 also includes the receiving member 26 and the punching blade 2.
When the paper 8 is in close contact with the paper 12, it 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 13 are provided in the leaf spring 126, the inner frame 124, and the lifting platform 110.
5 are formed respectively, and are used for passage of the feed roller 136. This feed roller 136 is rotatably supported between upstanding plates 140 and 142 of a rotating bracket 138 shown in FIGS. 1 and 2.

One end of the rotating bracket 138 is pivotally supported on the lifting platform 110 by a pin 144, and the vicinity of the other end serves as an operating section 138A. Also, a spring locking piece 146 is provided at the middle part of this rotation bracket 138.
is fixed to the lifting platform 110 as shown in FIG.
A tension coil spring 148 is interposed between the two. As a result, the feed roller 136 is pressed against the feed roller 56 through the rectangular through holes 135, 134 and the circular through hole 132.

This feed roller 136 is attached to a rotating bracket 138.
When rotated clockwise in Figure 1, the circular through hole 132
The punching blade 2 comes out of the rectangular through hole 134.
8 in the direction of arrow B.

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 is a pressing portion 154A corresponding to the upstream side of the punching blade 28 in the photographic paper conveyance direction, and the other end is a pressing portion 154A corresponding to the upstream side of the punching blade 28 in the photographic paper conveyance direction.
The operating section 154B protrudes further downstream than the operating section 10 in the photographic paper transport direction. Therefore, when the rotary lever 154 is rotated in the direction of arrow K in FIG. 6, the pressing portion 154A pushes the punching blade 28 out of the lifting platform 110 in the direction of arrow B.

However, in the state shown in FIG. 6 and FIGS. 1 and 2 in which the punching blade 28 is accurately filled into the lifting platform 110, a stopper is provided to prevent the receiving member 26 from coming off so that the punching blade 28 does not come off carelessly. plate 4
0 corresponds. That is, as shown in FIG. 2, the stopper plate 40 has a cutout 40A with a protrusion 40B below the punching blade 28 when viewed in the photographic paper conveyance direction.
It is interfering with one end, and arrow B of the punching blade 28
This prevents extraction in that direction.

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 is fixed when the rotary lever 154 is rotated in the direction of arrow K in FIG. state, pin 1 is connected as shown by the imaginary line in Figure 1.
The rotating bracket 13 enters above the rotating bracket 138 which is rotated clockwise around the rotating bracket 138.
8 is maintained in a lowered state.

Below the lifting table 110, a lower support table 170 is stretched between the side plates 14 and is horizontal. 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 17 is provided at the lower end of the lifting shaft 172 that projects downward from the guide sleeve 174.
6 is fixed in a horizontal state, and this elevating plate 17
6, a lifting block 178 is fixed. This lifting block 178 is placed on a cam 180, and the cam 180 is fixed to a cam shaft 182 extending between the side plates 14. The cam shaft 182 rotates under the driving force of a motor 184 fixed to the outside of the side plate 14, thereby vertically moving the lifting platform 110 together with the punching blade 28 via the lifting shaft 172.

Note that a tension coil spring 186 is interposed between the elevating plate 176 and the leg plate 14 and receives a force in the direction of pushing it toward the cam 180.
86 may be omitted and the robot may be lowered by its own weight.

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 arrow A, passes between the winding roller 16 and the pressing belt 18, and is sent in the direction of arrow B to the receiving member 26. and the punching blade 28.

When the motor 184 is rotated here, the cam 180
As a result of the rotation, the elevating shaft 172 is raised together with the elevating table 110. This causes the punching blade 28 to be pressed against the receiving member 26. Therefore, the punched portion 12A of the photographic paper 12 is punched out and separated from the punched remaining portion 12B. In this case, the leaf spring 126 is elastically bent and enters the movable blade main body 122.

During this punching operation, in the receiving member 26, the support plate 30 pressed by the movable blade main body 122 is pressed against the rubber plate 34.
The movable blade body 122 moves while being compressed.
It absorbs the overstroke and enables reliable punching work.

After punching, when the motor 184 further rotates, the punching blade 28 separates from the receiving member 26 and descends due to the rotation of the cam 180. During this descent, leaf spring 1
14 protrudes from the movable blade main body 122 due to elastic force, the punched portion 12A is completely removed from the remaining punched portion 1.
Even if it is cut and separated from 2B, 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.
is sent out 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 conveying direction of the punched part 12A correspond to the inner peripheral surface of the circular through hole 132 formed in the leaf spring 114. is circular, so
Even if the leading end of the photographic paper 12 or the uncut portion 12B is curled, the photographic paper 12 will not be caught in the circular through hole 132. In addition, since a guide portion 58 is formed in the center of the through hole in the receiving member 26, the guide portion 58 is formed at the center of the through hole.
2B will not get caught in this through hole either.

The punched portion 12A and the remaining punched portion 12B sent out from between the feed roller 56 and the feed roller 136 are sandwiched by the nipping conveyance roller 84 and the nipping conveyance roller 102, and further sent in the direction of arrow B, separated by the guide plate 104, They are sorted in the direction of arrows H and J, respectively.

Next, repair work such as replacing the receiving member 26 and punching blade 28 will be explained.

First, when the stopper 76 is rotated around the screw 74 in the direction of arrow G against the biasing force of the tension coil spring 80, the hook 78 is removed from the L-shaped plate 72. Therefore, the rotating bracket 68 becomes rotatable in the direction of arrow F in FIG. For this reason, when the rotating bracket 68 is rotated around the bolt 70 and lifted, the pinching and conveying roller 84, the pinching and conveying roller 102, and the conveying roller 56 are raised together with the rotating bracket 68, as shown in FIG.

Now, if the stopper plate 40 is rotated around the screw 42 to be in the state shown in FIG.
6. The punching blade 28 can be extracted. Therefore, when the receiving member pushing lever 44 is rotated in the direction of arrow E in the direction from the stop pin 52 to the stop pin 53, the eccentric cam 50 moves the receiving member 26 into the holder 3.
Push it out from between 8.

On the other hand, to take out the punching blade 28, rotate the rotating bracket 138 clockwise in FIG. 1, and while maintaining this rotating state, rotate the rotating lever 154 counterclockwise in FIG.
pushes out the punching blade 28 from the lifting table 110 in the horizontal direction, and the stopper 156 pushes out the rotating bracket 13.
8 to prevent the pivot bracket 138 from rising.

Therefore, it is possible to take out the receiving member 26 and punching blade 28 and replace them with new receiving members 26 and punching blade 28. After replacement and mounting, the receiving member 26 and the punching blade 28 can be brought into the normal loading state by performing the operation opposite to the above. Note that when the punching blade 28 is loaded onto the lifting platform 110,
Pushed by this punching blade, the pressing portion 154A
52 in the direction opposite to the direction of arrow E. This also causes the stopper 156 to disengage from the rotation bracket 138, so that the tension coil spring 1
48 allows the pivot bracket 138 to return and the feed roller 136 to return into the opening 36A.

In this way, during repair, after moving the feed roller 56 and the feed roller 136 in the direction away from the photographic paper conveyance path, the receiving member 26 and the punching blade 28 are placed parallel to the conveyed photographic paper (in this embodiment, in the photographic paper conveyance direction).
It is extremely easy to handle as it can be pulled out along the same direction. That is, the feed roller 56, the feed roller 13
6 is a receiving member 26 and a punching blade 28 on the upper and lower sides, respectively.
Since the receiving member 26 and the punching blade 28 are to be extracted in a horizontal plane, even though the feeding roller 56 and the feeding roller 136 are inserted into the receiving member 26 and the punching blade 28,
The receiving member 26 and the punching blade 28 can be repaired easily and quickly.

Note that the feed roller 56 is rotated together with the rotating bracket 68 as shown in FIG.
In addition to being pulled out from 6, it is also possible to configure the feed roller 136 to be retracted vertically upward, and the feed roller 136 may also be retracted vertically downward. Further, the receiving member 26 and the punching blade 28 are configured not only to take out the photographic paper along the conveying direction, but also in the horizontal direction, which is the surface containing the photographic paper being conveyed in the direction of arrow B between the receiving member 26 and the punching blade 28. Good to have.

〔Effect of the invention〕

As explained above, the present invention includes punching means that are provided on both sides of a thin-walled material conveyance path and punch out a part of the thin-walled material in close proximity to each other, and a punching means that pinches and conveys the punched portion and the remaining punched portion of the thin-walled material. a pair of nipping rollers, a pair of feed rollers that pass through the punching means and nip the thin material, and a repair guide means that separates one of the feeding rollers and the pair of nipping rollers from the thin material conveyance path; This feature provides an excellent effect in that the punching means can be easily repaired.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing a punching cutter to which the present invention is applied, FIG. 2 is a cross-sectional view taken along the - line in FIG.
Fig. 3 is a perspective view showing the rotating bracket in a lifted state, Fig. 4 is an exploded perspective view showing the receiving member and punching blade, Fig. 5 is a sectional view taken along the line of Fig. 1, and Fig. 6
The figure is a sectional view taken along the line of FIG. 10... cutter, 12... photographic paper, 26... receiving member, 28... punching blade, 56... feeding roller, 68... rotating bracket, 68A, 68B...
...Leg plate, 84...Nipping and conveying roller, 102...Nipping and conveying roller, 122...Moving blade main body, 136...
...Feed roller.

Claims (1)

[Claims] 1. A punching means provided on both sides of the thin material conveyance path and punching a part of the thin material in close proximity to each other; a pair of nipping rollers that pinch and convey the punched portion and the remaining punched portion of the thin material; A cutter for punching a thin material, comprising a pair of feed rollers that pass through a punching means and sandwich the thin material, and a repair guide means that separates one of the feed rollers and the pair of nipping rollers from a thin material conveyance path.