JP4383795B2 - Punching device, post-processing device including the punching device, and image forming apparatus - Google Patents

Description

  The present invention relates to a punching device, a post-processing device including the punching device, and an image forming apparatus, and more particularly, a punching device that collects punching waste formed by punching a transfer object, and the punching thereof. And a post-processing apparatus for performing post-processing of a transfer target after forming an image, and a copying machine for forming a toner image by a printing machine or an electrophotographic method for forming an image on the transfer target to be punched The present invention relates to an image forming apparatus such as a printer, a facsimile machine, a printer, or a complex machine of these.

In a conventional punching device, a post-processing device including the punching device, and an image forming apparatus, a sheet on which an image is formed and discharged is punched by the punching device, and is discharged or discharged. The paper is conveyed to a post-processing apparatus that performs sorting, binding, stacking, and the like of subsequent sheets.
Such a punching device includes a punch and a die for making a hole in a sheet, a punch waste conveying means for conveying punch waste generated when the punch and the die make a hole in a sheet, and a punch waste conveying means. And a punch waste box for receiving punch waste that has been conveyed.
Then, a screw type conveying device is adopted as the punch waste conveying means, and the punch waste box is detachably provided on the outer side of the image forming apparatus main body. When the punch waste box is removed from the image forming apparatus main body, The driving of the waste conveying means is stopped, but the image forming of the image forming apparatus is configured to continue.
As a result, it is well known that the punching waste is not scattered as dust outside the apparatus, and the image forming operation is continued even if the punch waste box is removed. (See Patent Document 1).
As a means for storing scraps when drilled, the punch and waste receiving container is configured to be detachable from the outside of the image forming apparatus through an opening formed in the side plate of the image forming apparatus main body. By being formed of a material such as a transparent plastic material, the inside of the punch and waste receiving container is visible from the outside of the apparatus, and the punch and dust receiving container is arranged on the side surface of the image forming apparatus main body, It is also known that the punching process can be easily performed (see Patent Document 2).
In addition, a punch mechanism is attached to the open / close cover provided on the side of the copier body, and a paper discharge tank for storing punch scraps generated when punch holes are opened in the open / close cover by the punch mechanism is detachable. It is also known (see Patent Document 3).
In a paper processing apparatus provided with a punching unit for punching paper that has been carried in, a transporting unit for transporting punched scraps punched by the punching unit, and a punching waste storage hopper for storing punched scraps transported by the transporting unit The drill waste storage hopper is detachably provided on the inner surface of the openable front cover that releases the inside of the sheet processing apparatus main body on the side parallel to the sheet conveying direction, thereby reducing size and space. In addition, an inventor of the same applicant has proposed a sheet processing apparatus with excellent operability.

In the conventional punching apparatus 100 shown in FIG. 19, punched scraps (p) formed by punching a sheet (P) carried by the carry-in roller 101 with the punch and die of the punching means 102, are formed. Are stacked on the conveyor belt 103a wound around the timing pulley 104 and conveyed to the operation side of the front surface 100a of the main body, and most of the perforated waste (p) is separated from the conveyor belt 103a by the bent portion 103b of the conveyor belt 103a. Then, it is dropped and accommodated in the perforated waste storage box 105.
However, the perforated waste (p) may be charged with static electricity or paper fibers may protrude, and the perforated waste (p) may not be separated from the transport belt 103a due to static electricity or paper fibers. It was.
If the perforated waste (p) falls into the perforated waste storage box 105 without being separated from the transport belt 103a and is not accommodated, the perforated waste (p) falls as shown in the bent portion 103b of the transport belt 103a. Instead, it goes around to the back side of the conveyor belt 103a as it is and falls inside the apparatus or scatters inside and outside the apparatus.
A reflection type sensor (not shown) that is not accommodated in the perforated waste storage box 105, but perforated waste (p) that has fallen into the inside of the apparatus and has fallen into the inside of the apparatus or scattered outside the inside of the apparatus. Etc., the quality of the formed image is lowered by erroneous detection and malfunction, and the perforated dust (p) is scattered and the appearance is also bad.
Therefore, in the conventional punching device, the post-processing device including the punching device, and the image forming apparatus, punching scraps formed by punching the transferred sheet of paper with the punch and die of the punching means. However, it does not move away from the conveyor belt, but it goes around to the back side and is not stored in the perforated waste storage box, but falls into the device or scatters inside and outside the device to block the reflective sensor, etc. There has been a problem that the quality of post-processing and formed image is deteriorated by causing malfunction, and the perforation dust is scattered and the appearance is also deteriorated.
JP 2001-25995 A Japanese Patent Laid-Open No. 7-112861 JP-A-6-155393

  Therefore, an object of the present invention is to solve such problems. In other words, the perforated waste formed by perforating means on the transferred transfer medium is reliably separated from the transport means for transporting to the operation side of the front surface of the main body and reliably accommodated to prevent erroneous detection and malfunction. It is an object of the present invention to provide a small-sized and low-cost perforating apparatus that has high-quality image formation and post-processing, and has a good appearance, a post-processing apparatus including the perforating apparatus, and an image forming apparatus. .

In order to achieve the above object, the present invention of claim 1 is a punching device in which punching waste storage means for storing punching waste generated when punching a transfer object is disposed on the operation side of the front surface of the main body.
A transfer means for carrying in the transfer body, a punching means for punching the transfer body carried from the carry-in means, a pair of pulleys, and drilling scraps generated by the punching of the one punching means. Perforated waste collecting and conveying means for conveying to the side, a conveying member of the perforated waste collecting and conveying means, and a pulley arranged on the downstream side of the conveying member, and the perforated waste conveyed by the conveying member is transferred to the conveying member A bending portion curved so as to be spaced apart from the bending portion, and a punching waste having a pressing member that presses a rear end of the punching waste on the conveying member on the upstream side of the bending portion and promotes the separation of the punching waste in the bending portion. And a separation promoting means.
According to a second aspect of the present invention, in the punching device according to the first aspect, the pressing member is made of a film-shaped resin material.
According to a third aspect of the present invention, in the perforating apparatus according to the first or second aspect, the punching waste separation promoting means is disposed in the vicinity of the bent portion and peeled off from the tip of the punching waste on the conveying member. It has the peeling member which accelerates | stimulates separation of the said perforated waste in the said bending part, It is characterized by the above-mentioned.
According to a fourth aspect of the present invention, in the perforating apparatus according to the third aspect, the peeling member is made of a film-shaped resin material.
According to a fifth aspect of the present invention, in the perforating apparatus according to any one of the first to fourth aspects, the perforated waste conveyed by the conveying member of the perforated waste collecting and conveying means is curved so as to be separated from the conveying member. A plurality of bent portions are provided.
According to a sixth aspect of the present invention, in the perforating apparatus according to the fifth aspect, the bent portion at the high position is disposed at a position closer to the side of the perforated waste accommodating means for accommodating the perforated waste than the bent portion at the lower position. It is characterized by that.

The present invention of claim 7 is the perforating apparatus according to claim 6, the bending portion of the high position was disposed than the bending portion of the lower position close to the above the chad storage means side for housing the chad position It is characterized by that.
The present invention of claim 8, avoided in perforation apparatus according to claim 7, the bending portion of the high position, the bent portion of the bent portion position chad low falling apart the conveying member from a higher position It arrange | positions in the position which carries out.
The present invention of claim 9 is the perforating apparatus according to any one of claims 1 to 8, the chad spaced promotion means, the chad on the transfer member to the chad in the front and rear of the bent portion It consists of a bending shape addition member which adds a bending shape and promotes separation.
The present invention of claim 10, in the drilling apparatus according to claim 9, said bent shape adding member is characterized by a idler roller.
The present invention of claim 11, in the perforating apparatus of claim 10, said idler rollers, the present invention according to claim 12, characterized in that it consists of corrugated portion formed an uneven surface on the outer periphery, the image 12. A post-processing apparatus that performs post-processing of a transferred object after formation, and a conveying unit that conveys the punching apparatus according to any one of claims 1 to 11 and a transferred object punched by the punching apparatus. And .
According to a thirteenth aspect of the present invention, there is provided an image forming apparatus for forming an image on a transfer target to be perforated, an image forming unit for forming an image on the transfer target, and a transfer target on which an image is formed by the image forming unit. A perforating apparatus according to any one of claims 1 to 11 , wherein the perforating apparatus according to any one of claims 1 to 11 is provided .
The present invention of claim 14 is the image forming apparatus according to claim 13, said image forming means and forming a toner image by an electrophotographic method.

According to the first aspect of the present invention, the pressing member of the punching waste separation promoting means from the punching waste collecting and transporting means for transporting the punched waste formed by punching the transferred transfer object by the punching means to the operation side of the front surface of the main body. Therefore, it is possible to provide a perforating apparatus that is surely separated and securely accommodated to prevent erroneous detection and malfunction and has a good appearance.
According to the second aspect of the present invention, the holding member is surely separated from the punched waste collecting and transporting means for transporting the punched waste formed by punching the transferred transfer object by the punching means to the operation side of the front surface of the main body. It is possible to provide a low-cost drilling device that is securely accommodated, prevents false detections and malfunctions, has a good appearance and is easy to process and attach.
According to the invention of claim 3 , the peeling member of the punching waste separation promoting means from the punching waste collecting and transporting means for transporting the punching waste formed by being punched by the punching means to the transferred transfer body to the operation side of the front surface of the main body. Therefore, it is possible to provide a perforating apparatus that is surely separated and securely accommodated to prevent erroneous detection and malfunction and has a good appearance.
According to the fourth aspect of the present invention, the peeling member formed by being punched by the punching means on the transferred transfer object is reliably separated from the punching waste collecting and transporting means for transporting to the operation side of the front surface of the main body by the peeling member. It is possible to provide a low-cost drilling device that is securely accommodated, prevents false detections and malfunctions, has a good appearance and is easy to process and attach.
According to the fifth aspect of the present invention, the plurality of bent portions surely separate the perforated waste formed by being perforated by the perforating means on the transferred transfer medium to the operation side of the front surface of the main body. Therefore, it is possible to provide a perforating apparatus that can be securely accommodated and has a good appearance while preventing erroneous detection and malfunction.
According to the sixth aspect of the present invention, the plurality of bent portions surely separate the perforated waste formed by being perforated by the perforating means on the transferred transfer medium to the operation side on the front surface of the main body. Thus, it is possible to provide a small-sized perforating apparatus that can be securely accommodated and that has a good appearance while preventing erroneous detection and malfunction.

According to the invention of claim 7 , by a plurality of bent portions from the perforated waste collecting and transporting means for transporting the perforated waste formed by perforating means to the transferred transfer body to the operation side of the front surface of the main body, It is possible to provide a small-sized perforating apparatus that is reliably spaced apart and reliably accommodated to prevent erroneous detection and malfunction and to have a good appearance.
According to the invention of claim 8 , by a plurality of bent portions from the perforated waste collecting and transporting means for transporting the perforated waste formed by being perforated by the perforating means to the transferred transfer body to the operation side of the front surface of the main body, It is possible to provide a small-sized perforating apparatus that is surely separated and further reliably accommodated to prevent erroneous detection and malfunction and to have a good appearance.
According to the ninth aspect of the present invention, the bent shape adding member reliably separates the punched waste formed by being punched by the punching means on the transferred transfer object to the operation side of the front surface of the main body. Therefore, it is possible to provide a perforating apparatus that can be securely accommodated and has a good appearance while preventing erroneous detection and malfunction.
According to the tenth aspect of the present invention, the punched waste collecting and transporting means for transporting the punched waste formed by punching the transferred transfer object by the punching means to the operation side on the front surface of the main body by the idler roller of the bending shape adding member. It is possible to provide a perforating apparatus that is surely spaced apart and securely accommodated to prevent erroneous detection and malfunction and to have a good appearance.
According to the eleventh aspect of the present invention, the punched waste collecting and transporting means for transporting the punched waste formed by punching the transferred transfer object by the punching means to the operation side of the front surface of the main body by the idler roller of the bending shape adding member. Furthermore, it is possible to provide a perforating apparatus that is reliably spaced apart and securely accommodated to prevent erroneous detection and malfunction and to have a good appearance.
According to the invention of claim 12, the perforated waste formed by being perforated by the perforating means on the transferred transfer object is reliably separated from the transport means for transporting to the operation side of the front surface of the main body, and is reliably accommodated. High-quality post-processing is performed while preventing erroneous detection and malfunction, and it is possible to provide a post-processing apparatus having a small-sized and low-cost perforating apparatus that looks good.
According to the invention of claim 13, the punched waste formed by being punched by the punching means on the transferred transfer object is reliably separated from the transport means for transporting to the operation side of the front surface of the main body, and is securely stored, Image formation is performed while preventing erroneous detection and malfunction, and an image forming apparatus including a small-sized and low-cost punching apparatus that has a good appearance can be provided.
According to the invention of claim 14, the perforated waste formed by being perforated by the perforating means on the transferred transfer object is reliably separated from the conveying means for conveying to the operation side of the front surface of the main body, and is reliably accommodated. It has become possible to provide an image forming apparatus having a small-sized and low-cost punching device that is high-quality image forming while preventing erroneous detection and malfunction.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic configuration explanatory view of a punching device according to an embodiment of the present invention, in which a punching device 0 for recovering punch scraps formed by punching a transferred member is a transferred member (P). Of the transfer paper 1 in the direction perpendicular to the paper surface by the carry-in roller pair 1b from the carry-in entrance 1a, and the punching means 2 for punching the transfer target (P) carried in from the carry-in entrance 1a and the carry-in roller pair 1b. Conveying member wound around the pulley 3c of the punch 2a, the die 2b, and the punching waste collecting and transporting means 3 for transporting the punching waste (p) formed by punching of the punch 2a and the die 2b to the operation side of the main body front surface 0a. A conveyor belt 3a, a bending portion (bending portion) 3b formed on the operation side of the main body front surface 0a which the conveying member 3a conveys and separates the perforated waste (p), and perforated waste from the bent portion 3b ( p) Hands that promote the separation of perforated waste 4, a conveying member 3 a for conveying perforated waste (p) formed by perforating the transferred object (P) carried by the punch 2 a and the die 2 b to the operation side of the main body front surface 0 a. It is surely separated from the housing and securely accommodated to prevent erroneous detection and malfunction.
The holding member 4a presses the rear end side of the perforated waste (p) on the conveying member 3a on the upstream side of the bent portion 3b, and lifts and separates the front end side of the perforated waste (p) from the upper side of the conveying member 3a. It is easy to do.
The perforated waste (p) on the transport member 3a is promoted to be separated from the transport member 3a by the pressing member 4a, and is reliably accommodated in the perforated waste storage hopper 5a of the perforated waste storage means 5.
The pressing member 4a is made of a film-shaped resin material, and is easily held and fixed to a fixing member such as the main body frame 0b at a low cost with easy processing and attachment.
The peeling member 4b of the punching waste separation promoting means 4 is disposed in the bent portion 3b immediately after the pressing member 4a.
By further abutting the tip of the peeling member 4b on the lower side of the tip of the punched debris (p) whose tip is lifted by the pressing member 4a, the punched debris (P) is peeled off from the conveying member 3a, Furthermore, it is easier to separate.
The separating member 4b promotes the separation of the perforated waste (p) on the transport member 3a from the transport member 3a, so that the perforated waste (p) is reliably accommodated in the perforated waste accommodating hopper 5a.
The peeling member 4b is made of a film-shaped resin material, and is fixed and held on the perforated dust guide 5b at a low cost with simple processing and attachment.
Accordingly, the perforated waste (p) formed by perforating the transferred transfer body (P) with the punch 2a and the die 2b is transported to the operation side of the front face 0a of the main body. It is further separated from the member 3a, and is further securely accommodated in the perforated waste accommodating hopper 5a, so that erroneous detection and malfunction are reliably prevented. A simple and low-cost drilling device 0 can be provided.

In the punching device according to another embodiment shown in FIGS. 2 to 4, the punching device 00 for collecting punch scraps formed by punching on the transfer target body transfers the transfer target body (P) from the carry-in entrance 1a to a pair of carry-in rollers. 1b, carrying-in means 1 for carrying in the direction perpendicular to the paper surface, punch 2a and die 2b for punching the transferred material (P) carried from the pair of carry-in port 1a and carry-in roller 1b, and punching of punch 2a and die 2b a conveying member 3a are wound around the above the chad recovery conveying means pulley 3c ₁ and the pulley 3c ₂ of the pulley 3c of 3 for conveying the operating side of the front panel 0a recovering the formed chad (p) by, The bent portion 3b formed on the operation side of the main body front surface 0a where the conveying member 3a conveys and separates the perforated waste (p), and the above promotes the separation of the perforated waste (p) from the bent portion 3b. Of the drilling waste separation promoting means 4 Sequentially disposed a plurality in the bent portion 3b ₁ and the bent portion 3b ₂ and the height direction position of the bending portion lower position which is located lower than 3b ₁ of the high position of the high position of the bent portion 4c of the number The perforated waste collecting / conveying means 3 for transporting the perforated waste (p) formed by perforating the transferred transfer body (P) with the punch 2a and the die 2b to the operation side of the main body front surface 0a. Of the plurality of bent portions 4c of the perforated waste separation promoting means 4 is reliably separated from the conveying member 3a by the higher bent portions 3b ₁ and the lower bent portions 3b _2. It may be housed in the housing hopper 5a to prevent erroneous detection and malfunction, and may look good.
Further, the plurality of bent portions 4c of the perforated waste separation promoting means 4 include the perforated waste storage hopper that stores the higher-order bent portion 3b ₁ than the lower-position bent portion 3b _2. It is arranged at a position where it approaches the 5a side and protrudes to the front.
That is, the perforated waste (p) separated from the conveying member 3a of the perforated waste collecting / conveying means 3 at the _first bent portion 3b ₁ at the high position does not come into contact with the next bent portion 3b ₂ at the lower position. In this way, it is further ensured that they are separated from each other and fall into the perforated waste guide 5b of the perforated waste accommodating means 5 so as to be more reliably accommodated in the perforated waste accommodating hopper 5a. .

Also, the reason why the two bent portions 3b _{1 at the} high position and the bent portion 3b ₂ at the low position are shifted in the height direction is to prevent the perforated dust guide 5b from being enlarged, The punching device 00 can be provided.
If the plurality of bent portions 3b ₃ and the bent portions 3b ₄ are shifted in the horizontal direction, they are as shown in FIG.
In order to drop the drilling scraps (p) dropped at all the bent portions 3b ₃ and the bent portions 3b ₄ to the inclined portion 5b ₁ of the punched scrap guide 5b and slide the inclined portion 5b ₁ to some extent. An angle is required, and the drilling dust guide 5b inevitably increases in size.
Accordingly, perforation waste separation is promoted from the conveying member 3a for transporting perforated waste (p) formed by perforating the transferred transfer medium (P) with the punch 2a and the die 2b to the operation side of the main body front surface 0a. surely is separated by a bent portion 3b ₂ of the bent portion 3b ₁ and the lower position of the high position of the plurality of bent portions 4c of unit 4, the chad storage hopper 5a, further, to certainly accommodated, erroneous It is possible to provide a small-sized punching device 00 that reliably prevents detection and malfunction, and also has a good appearance.

5 and 6, the punching device 00 for collecting punch scraps formed by punching the transfer target body is a direction in which the transfer target body (P) is orthogonal to the paper surface from the carry-in entrance 1 a by the carry-in roller pair 1 b. Perforations formed by perforation of the transporting means 1 for transporting to, the punch 2a and the die 2b for perforating the transferred object (P) transported from the transport inlet 1a and the transport roller pair 1b, and the punch 2a and the die 2b. a conveying member 3a are wound around the pulley 3c ₁ and the pulley 3c ₂ pulleys 3c for conveying the operating side of the front panel 0a for recovering scrap (p), the conveying member 3a is come to carry the chad (p) The bending portion (curved portion) 3b formed on the operation side of the main body front surface 0a that is spaced apart and the idler (roller) 4d of the bending shape additional member 4d that promotes the separation of perforated waste (p) from the bending portion 3b. It consists of _one Tokyo, transportable Is the transfer target body and the chad formed by perforation of the punch 2a and die 2b in (P) (p), from the transport member 3a for conveying the operating side of the front panel 0a, bending idler 4d shape additional member 4d _It is also possible to further ensure the separation by ₁ and to further securely accommodate the perforated waste accommodating hopper 5a to prevent erroneous detection and malfunction.
The idler 4d ₁ is arranged in front of and behind the bent portion 3b _{1 at the} high position and the bent portion 3b _{2 at} the low position to add a bent shape to the punched debris (p). 3a is further reliably separated and further reliably accommodated in the perforated waste accommodating hopper 5a.
That is, the chad (p) is, without spaced bend 3b ₁ of the high position of the beginning of the bending portion 3b, is conveyed pinched bending the shape adding member 4d said idler 4d ₁ of the conveying member 3a Before reaching the next bent portion 3b ₂ at the lower position, a curved bent shape is formed as shown in the figure.
The idler 4d ₁ of the bending shape addition member 4d has a role as a curler, and presses and conveys the perforated waste (p) with a certain amount of pressure so that the bending direction of the bending portion 3b ₂ at the next lower position can be reduced. A reverse curvature is formed in the perforated waste (p) to facilitate separation from the conveying member 3a.
Illustrated, spaced to curved bend chad which shape is formed from the conveying member 3a (p) is by the idler 4d ₁ of bent shape additional member 4d, so curved bent shape is formed, following the The bent portion 3b ₂ at the lower position is easily and reliably separated from the conveying member 3a.

In addition, as shown in FIG. 6, the idler 4d ₁ is composed of a concavo-convex shape portion 4d _{11 having} a concavo-convex surface formed on the outer periphery, so that perforated dust (p) is sandwiched between the idler 4d ₁ and the conveying member 3a. When a curved bent shape is formed and added, an uneven shape can be added at the same time, so that the perforated waste (P) can be easily and reliably separated from the conveying member 3a. Yes.
Therefore, the idler 4d ₁ is transferred from the transport member 3a for transporting the punched waste (p) formed by punching the transferred transfer object (P) with the punch 2a and the die 2b to the operation side of the main body front surface 0a. And the uneven shape portion 4d ₁₁ having an uneven surface formed on the outer periphery of the idler 4d ₁ , and further reliably separated into the perforated waste storage hopper 5a to ensure erroneous detection and malfunction. In addition, it is possible to provide a small-sized punching device 00 that has a good appearance.

FIG. 7 is an overall configuration diagram of another example of the punching device of the present invention. In FIG. 7, the punch 2a and the die 2b are transferred to the transfer body (P) carried from the carry-in entrance 1a and the carry-in roller pair 1b. The perforated waste (p) formed by the perforation falls on the conveying member 3a.
The conveying member 3a is stretched and tensioned by the timing pulley of the pulley 3c and the timing pulley of the pulley 3d, and the conveying member 3a on the side where the perforated dust (p) has fallen moves in the direction of the arrow (A) shown in the figure. By doing so, perforated waste (p) is conveyed to the operation side of the main body front surface 0a.
Driving of the conveying member. 3a, the worm wheel 3d ₁ integrated with the timing pulley of the pulley 3d is in mesh with the worm 3d _2, performed by the rotation of the worm 3d _2.
The worm 3d ₂ is rotationally driven from the stepping motor 3e via the timing belt 3f.
Here, the perforated waste (p) transported to the operation side of the main body front surface 0a by the transport member (transport belt) 3a is the slope of the inclined portion 5b ₁ of the perforated waste guide 5b of the perforated waste storage means 5. It passes through the guide and falls into the perforated waste accommodating hopper 5a and accommodated.
Chad storage hopper 5a is inside the front cover 0a ₁ reclosable said body front 0a, or is mounted by the detachable inside side of the post-processing apparatus 10 (not shown).
In the enlarged view of the main part of FIG. 8, a magnet 5a ₁ is mounted on the side wall of the perforated waste storage hopper 5a, and is magnetized and held on the bracket 0a ₂ attached to the inner side of the front cover 0a _1. It is like that.
As a guide for magnetization, pins 0a ₃ and 0a ₄ are provided in a part of the front cover 0a ₁ of the front surface 0a of the main body, and a mounting hole on the side wall of the perforated waste accommodating hopper 5a is inserted therein. A guide function is provided.
As mentioned above, allowing the attachment and detachment of the chad storage hopper 5a by the presence or absence of magnetization of the magnet 5a ₁ and the bracket 0a _2.

The punching means 2 in the punching device 0 can be mounted with a press punch method (see FIGS. 9 and 10) or a rotary punch method (see FIGS. 11 and 12).
9, FIG. 9 (a) to FIG. 9 (e) is a simulation of the operation of the arrow (B) direction of the illustrated cutting head 2a ₁ of the press punch type punch 2a.
The punching blade 2a ₁ of the press punch type is shown in the direction of the arrow (D) shown in the figure with respect to the transfer target (P) by the cam 2a ₁₂ rotating around the shaft 2a ₁₁ in the direction of the arrow (C) shown in the figure, or Then, the vertical movement of the arrow (E) shown in the figure is performed, and the transfer target (P) is perforated in the state shown in FIG. 9C.
The transferred object (P) at that time is in a state where the inlet sensor 1c disposed at the carry-in port 1a is stopped after a predetermined time or after a predetermined pulse after the rear end of the transferred object (P) passes. in, perforated by punching blade 2a ₁ of the press punch method is performed.
In the cutting head of the drive mechanism shown in FIG. 10, the cutting head 2a ₁ of the press punch method, the cam _{2a 12} being engaged with the shaft _{2a 11} is, arrows shown around the said axis _{2a 11} (C ) Direction, the inner wall of the holder 2a ₁₃ that is in contact with the outer cam surface of the cam 2a ₁₂ is pushed down in the direction of the transfer target (P) in the direction of the arrow (D) shown.
The pressed-down holder 2a ₁₃ pushes down the press punching type perforating blade 2a ₁ integrally engaged with the holder 2a _{13 in the} direction of the transferred object (P) in the direction of the arrow (D) shown in the figure. Perforation is performed.
A pulley 2a ₁₄ is mounted on the shaft 2a ₁₁ and rotates by driving from a stepping motor 2a ₁₆ via a timing belt 2a ₁₅ .
The pulley 2a ₁₄ is driven from the pulley 2a ₁₄ to the shaft 2a ₁₁ by always rotating the pulley 2a ₁₄ by the stepping motor 2a ₁₆ via the timing belt 2a ₁₅ and, when necessary, by a one-rotation clutch (not shown). it can either be transmitted to the shaft _{2a 11,} stopping of the stepping motor _{2a 16,} by repeating the driving can also be transmitted to the shaft _{2a 11.}

Figure 11 is a configuration and operation explanatory view of a punching blade according to another embodiment, reference numeral 11 (a) to (e), the arrows shown in the cutting head 2a ₂ of the rotary punch method of the punch 2a (F) It is an operation | movement simulation of a direction.
The rotary punch type drilling blade 2a ₂ rotates in the direction of the arrow (G) shown in the figure around the shaft 2a _21, and the rotary die of the die 2b is located at a position where it is paired with the rotary punch type drilling blade 2a ₂ . 2b ₂ is provided.
The rotary die 2b ₂ rotates about the shaft 2b ₂₁ in the direction of the arrow (H) shown in the figure.
The transferred object (P) passes through the inlet sensor 1c disposed at the carry-in port 1a in accordance with the operation of the transferred object (P) after a predetermined pulse after the rear end of the transferred object (P) passes. above with die 2b ₂ of the cutting head 2a ₂ and rotary system of the rotary punch method starts rotating, in the state of FIG. 11 (c), the is adapted to perform perforation with respect to the transfer member (P).
FIG. 12 is a view showing a driving mechanism of an embodiment of a rotary punch system. In the figure, the rotary punch type punching blade 2a ₂ and the rotary type die 2b ₂ sandwich the transfer target (P). Are attached to the rotating body 2a ₂₂ and the rotating body 2b ₂₂ which are paired with each other.
Each of the rotating bodies 2a ₂₂ and 2b ₂₂ rotates around the shaft 2a ₂₁ and the shaft 2b ₂₁ in the illustrated arrow (G) direction and the illustrated arrow (H) direction. .
To the shaft _{2a 21} and the shaft _{2b 21} of the cutting head 2a ₂ and the die 2b ₂ of the rotary system of the rotary punch method is gear _{2a 23} and the gear _{2b 23} respectively is mounted, both of the gears _{2a 23} Rotation is transmitted by the meshing of the gear 2b ₂₃ .
Drive is transmitted to the gear 2a ₂₃ from a stepping motor 42a ₂₅ 1 via a timing belt 2a ₂₄ .

13 and 14, a front cover 10 a ₁ that can be opened and closed by rotating in the direction of the arrow (I) shown on the operation side of the main body front surface 10 a of the post-processing device 10 including the punching device 0 is provided. It is provided in place of the front cover 0a ₁ of the punching device 0.
A drill waste storage hopper 5a is attached to the front cover 10a ₁ which can be opened and closed by turning in the direction of the arrow (I) shown on the operation side of the main body front surface 10a, and is shown in FIG. The front cover 10a ₁ provided on the operation side of the main body front surface 10a is in a closed state.
The front cover 10a ₁ provided on the operation side of the main body front 10a illustrated in FIG. 14 is a state open.
When the front cover 10a ₁ is turned around the fulcrum 10a ₁₁ to open (see FIG. 14), the perforated waste accommodating hopper 5a is also rotated together.
Chad storage hopper 5a, when the front cover 10a ₁ is closed by rotating (see Figure 13) is in a state that closes the transport path of the transporting means 11 (not shown), if, jam Even if it is attempted to open and close the transport path of the transport means 11 or the like, the punch waste storage hopper 5a is fixed at that position, and if it does not retract, jam processing or the like will be hindered.
That is, when you open the front cover 10a ₁ with jam processing or the like, the chad storage hopper 5 of the chad storage means 5 become the front cover 10a ₁ integral must also be moved.
Therefore, the post-processing device 10 comprising the perforating device 0, with open the front cover 10a _1, because so also retracted chad storage hopper 5a, to impede the jam treatment or the like In addition, the perforated waste accommodating hopper 5a can be enlarged, and the capacity for accommodating perforated waste (p) can be increased in a space-saving manner.

FIGS. 15 to 17 show the configuration when the punching apparatus of the present invention is incorporated in the post-processing apparatus. In FIG. 15, the post-processing apparatus 10 including the punching apparatus 0 includes the image forming apparatus 50. The transferred object (P) on which the image is formed and discharged from the image forming unit 51 is transported and carried in from the paper discharge direction indicated by the arrow (J) in the drawing (see FIG. 15).
The transferred material (P) conveyed to the post-processing device 10 having the punching device 0 and carried in is carried from the carry-in port 1a of the punching device 0 and passes through the carry-in roller pair 1b. The transfer object (P) is transported from the transport roller 11 to the transport roller pair 12 of the transporting transport path 11a of the transport means 11, and an image is formed and discharged between the transport roller pair 1b and the transport roller pair 12. The punch 2a and the die 2b of the punching device 0 for punching are provided.
In addition, the perforated waste collecting and conveying means 3 for conveying the perforated waste (p) after perforation by the punch 2a and the die 2b together with the perforation separation promoting transport means 4 below the punch 2a and the die 2b of the perforating apparatus 0. Equipped as shown.
The perforated waste (p) after being perforated by the punch 2a and the die 2b is conveyed by the perforated waste collecting and conveying means 3 in the perforated waste conveying direction (K) in the direction of the arrow (K) shown in FIG.
Chad conveying direction of arrow (K) direction shown in FIG. 16 of the chad (p) is the user in the front operating side of the cover 10a ₁ of the front panel 10a to perform the Operate process or jam processing or the like, chad accommodation of (p) is carried out are stacked inside the chad storage hopper 5a disposed on the front operating side of the cover 10a ₁ of the front panel 10a.
The transferred object (P) formed and ejected by the punch 2a and the die 2b is discharged from the transfer claw pair 12 by switching the branch claw 13 and the branch claw 14 respectively. The paper is transported to the transport path, and is stacked on the paper discharge tray 16 through the post-processing transport path 11b of the transport unit 11 in which a post-processing process such as a stapler such as the stapler 15 of the next post-processing process is performed.
Or if it is simple discharge | emission, it will pass on the simple discharge conveyance path | route 11c, and will be loaded on the proof tray 17. FIG.
That is, since the punch 2a, the die 2b, and the perforated waste storage hopper 5a are disposed at the uppermost stream in each post-processing step, basically, an image to be conveyed to which conveyance path is formed and discharged. The transfer body (P) can also be perforated.

The post-processing device 10 provided with the punching device 0 is applied to the transfer target (P) on which an image conveyed from the discharge direction of the arrow (J) shown in FIG. Then, the punch 2a and the die 2b are used for perforation.
The punch 2a and the die 2b are illustrated in FIG. 17 of the transfer target (P) on which the image is formed and discharged after the transfer target (P) on which the image is formed and stopped is stopped at a predetermined position. Press punch method (diagram a cutting head 2a ₁ is vertically operating drilling with the press punch method arrow (L) direction perpendicular to the punch 2a depicted in arrow (J) the direction of the discharge direction in FIG. 17 9 and FIG. 10), the transferred object (P) discharged after the image is formed is conveyed in the discharge direction of the arrow (J) shown in FIG. It may be a rotary punch method of drilling by rotating the cutting head 2a ₂ of the rotary punch method punch 2a (not shown) so as to synchronize with the conveying speed (see FIGS. 11 and 12).
The cutting head 2a ₁ of the press punch system of any punch 2a press punch method is vertically operate to drilled (see FIGS. 9 and 10), or, by rotating the cutting head 2a ₂ of the rotary punch method The perforated waste (p) dropped from the transfer target (P) perforated by the rotary punch method (see FIGS. 11 and 12) is perforated by the perforated waste collecting and conveying means 3 and the perforation separation promoting and conveying means 4. , so that it falls within the prior chad is arranged on the operating side of the cover 10a ₁ storage hopper 5a of the front panel 10a, it is accommodated.
Accordingly, the punched waste (p) formed by being punched by the punch 2a and the die 2b in the transferred transfer object (P) is reliably separated from the punched scrap collecting and transporting means 3 for transporting to the operation side of the main body front surface 10a. In addition, the capacity that can accommodate drilling waste (p) is increased in a space-saving manner, and it is securely stored, and high-quality post-processing is performed to prevent false detections and malfunctions. The post-processing apparatus 10 having the cost perforating apparatus 0 can be provided.

FIG. 18 is an explanatory view of the configuration of an image forming apparatus provided with the punching apparatus of the present invention. In FIG. 18, the image forming apparatus 50 for forming an image on a transfer target body for punching is provided on the transfer target (P). The image forming unit 51 for forming an image, and the punching device 0 according to any one of claims 1 to 12, which punches a transfer body (P) on which an image is formed by the image forming unit 51. Perforated scraps (p) formed by punching a transfer sheet with punch 2a and die 2b on the transferred transfer object (P) that has been carried in are conveyed to the operation side of the front cover 0a _{1 on} the front face 0a of the main body. It is surely separated from the perforated waste collecting and conveying means 3 and securely accommodated to prevent erroneous detection and malfunction, and high-quality image formation is performed. It looks good and is small and low cost.
A copying machine that forms a toner image by the electrophotographic method of the image forming apparatus 50 is provided with a document image reading device 52 that reads an image of a document (O) at the top.
On the other hand, a transferred object supply device 53 for supplying the transferred object (P) by placing the image forming means 51 is disposed in the lower part.
The original image reading device 52 is uniformly charged by the charger 51b by causing the laser diode of the image writing means 51c to emit light by an electrophotographic method in which a toner image is formed with image data of the original image of the original (0) to be read. An electrostatic latent image is formed on the drum-shaped photosensitive drum of the image carrier 51a.
The electrostatic latent image formed by causing the laser diode of the image writing means 51c to emit light is visualized by a developing device 51d to form a toner image.
The toner image visualized by the developing device 51d is transferred to the transferred material (P) conveyed from the transferred material supply device 53 by the transfer device 51e.

The toner image transferred to the transfer medium (P) by the transfer device 51e is heated and pressed by the fixing device 51f, and then the transfer object (P) is transported to the inlet 1a of the punching device 0 by the paper discharge roller 51g. It is carried in.
On the other hand, the drum-shaped photosensitive drum of the image carrier 51a transfers residual toner adhered to the drum-shaped photosensitive drum of the image carrier 51a after transferring the toner image to the upper transfer body (P). Then, it is scraped off and cleaned by the cleaning member 51h to prepare for image formation in the next process.
The transfer target (P) carried in from the carry-in port 1a of the punching device 0 is punched by the operations of the punch 2a and the die 2b, and then discharged onto the discharge tray 54 and stored.
The perforated waste (p) dropped from the transfer target (P) perforated by the punch 2a and the die 2b is collected by the perforated waste collecting and conveying means 3 and the perforated separation promoting and conveying means 4 on the front cover 0a. securely fall within chad storage hopper 5a disposed on the operating side of 0a _1, is adapted to be accommodated.
Therefore, the perforated waste collection for transporting the perforated waste (p) formed by perforating the transferred transfer medium (P) with the punch 2a and the die 2b to the operation side of the front cover 0a _{1 on} the front surface 0a of the main body. The punching device 0 is surely separated from the conveying means 3 and securely accommodated to prevent erroneous detection and malfunction, and further, high-quality image formation is performed, and the perforating device 0 that is good in appearance and small in size and low in cost. The image forming apparatus 50 provided can be provided.

It is explanatory drawing explaining the punching apparatus which shows the embodiment of this invention. It is explanatory drawing explaining the punching apparatus which shows the other embodiment of this invention. It is an enlarged view explaining the state of the principal part of the punching apparatus which shows the other embodiment of this invention. It is an enlarged view explaining the other state of the principal part of the punching apparatus which shows the other embodiment of this invention. It is an enlarged view explaining the state of the principal part of the punching apparatus which shows the other embodiment of this invention. It is an enlarged view explaining the other state of the other principal part of the punching apparatus which shows the other embodiment of this invention. It is explanatory drawing explaining the other main part of the punching apparatus which shows the embodiment of this invention. It is explanatory drawing explaining the other main part of the punching apparatus which shows the embodiment of this invention. It is explanatory drawing explaining operation | movement of the other main part of the punching apparatus which shows the embodiment of this invention. It is explanatory drawing explaining the other main part of the punching apparatus which shows the embodiment of this invention. It is explanatory drawing explaining other operation | movement of the other main part of the punching apparatus which shows the embodiment of this invention. It is explanatory drawing explaining the other main part of the punching apparatus which shows the embodiment of this invention. It is a top view explaining the state of the principal part of the post-processing apparatus which comprises the punching apparatus which shows the other embodiment of this invention. It is a top view explaining the other state of the principal part of the post-processing apparatus which comprises the punching apparatus which shows the other embodiment of this invention. It is explanatory drawing explaining the post-processing apparatus which comprises the punching apparatus which shows the other embodiment of this invention. It is explanatory drawing explaining the other principal part of the post-processing apparatus which comprises the punching apparatus which shows the other embodiment of this invention. It is an enlarged view explaining the other main part of the post-processing apparatus which comprises the punching apparatus which shows the other embodiment of this invention. It is explanatory drawing explaining the image forming apparatus which comprises the punching apparatus which shows the other embodiment of this invention. It is explanatory drawing explaining the conventional punching apparatus.

Explanation of symbols

0 punching device,
00 punching device,
0a Front of the main unit,
0a ₁ front cover,
0a ₂ bracket,
0a ₃ pin,
0a ₄ pin,
0b Body frame 1 Loading means,
1a loading port,
1b Carry-in roller pair,
1c Entrance sensor 2 Drilling means,
2a punch,
2a ₁ punch punch hole,
2a ₁₁ axes,
2a ₁₂ cams,
2a ₁₃ holder,
2a ₁₄ pulley,
2a ₁₅ timing belt,
2a ₁₆ stepping motor,
2a ₂ rotary punch type drilling blade,
2a ₂₁ axes,
2a ₂₂ rotator,
2a ₂₃ gears,
2a ₂₄ timing belt,
2a ₂₅ stepping motor,
2b die,
2b _1- press die,
2b ₂ rotary die,
2b ₂₁ axes,
2b ₂₂ rotator,
2b ₂₃ gear 3 perforated scrap collecting and conveying means,
3a conveying member,
3b bending part,
3b ₁ bend at a higher position,
3b ₂ lower bend,
3b ₃ bends,
3b ₄ bends,
3c pulley,
3c ₁ pulley,
3c ₂ pulleys,
3d pulley,
3d ₁ worm wheel,
3d ₂ warm,
3e stepping motor,
3f Timing belt 4 Drilling waste separation promoting means,
4a Presser member,
4b peeling member,
4c multiple bends,
4d bending shape addition member,
4d ₁ idler,
4d ₁₁ concavo-convex shape part 5 perforated waste accommodating means,
5a Perforated waste storage hopper,
5a ₁ magnet,
5b Drilling waste guide,
5b ₁ inclined part
10 Post-processing device 10a Front surface of main body,
10a ₁ front cover,
10a ₁₁ fulcrum 11 conveying means,
11a carry-in transport route,
11b Post-processing transport path,
11c Simple discharge conveyance path 12 Conveying roller pair 13 Branch claw 14 Branch claw 15 Stapler 16 Paper discharge tray 17 Proof tray 50 Image forming device 51 Image forming means,
51a image carrier,
51b charger,
51c image writing means,
51d Developer,
51e transfer device,
51f fixing device,
51g paper discharge roller,
51h Cleaning member 52 Document image reading device 53 Transferred material supply device 54 Paper discharge tray 100 Punching device 100a Main body front surface 101 Loading roller 102 Punching means 103 Punching waste conveying means,
103a conveying belt,
103b Bending part 104 Timing pulley 105 Perforated waste storage box

Claims (14)

In the punching device in which punching waste storage means for storing punching waste generated when punching the transfer body is arranged on the operation side of the front surface of the main body,
Carrying-in means for carrying in the transferred body;
Perforating means for perforating the transferred object carried from the carrying-in means;
Perforated waste collecting and conveying means for conveying perforated waste generated by perforation of the pair of pulleys and the one perforating means to the operation side of the front surface of the main body;
A bending portion that is configured by a conveying member of the perforated waste collecting and conveying means and a pulley disposed on the downstream side of the conveying member, and is curved so as to separate the perforated waste conveyed by the conveying member from the conveying member;
Drilling waste separation promoting means having a pressing member that presses the rear end of the drilling waste on the conveying member on the upstream side of the bending portion and promotes the separation of the drilling waste in the bending portion;
A perforating apparatus comprising:   2. The punching device according to claim 1, wherein the pressing member is made of a film-shaped resin material.   3. The punching device according to claim 1, wherein the punching waste separation promoting means is disposed in the vicinity of the bent portion, and is peeled off from a tip of the punched waste on the conveying member to remove the punched waste in the bent portion. A punching device comprising a peeling member that promotes separation.   4. The punching apparatus according to claim 3, wherein the peeling member is made of a film-shaped resin material.   5. The perforating apparatus according to claim 1, wherein a plurality of curved bent portions are provided so as to separate the perforated waste conveyed by the conveying member of the perforated waste collecting and conveying means from the conveying member. A perforating apparatus characterized by the above.   6. The perforating apparatus according to claim 5, wherein the plurality of bent portions are formed at a high position, and at a lower position than the high position, and the low position bends are high. A perforating apparatus characterized in that a plurality of holes are arranged at a position in the direction.   7. The perforating apparatus according to claim 6, wherein the bent portion at the higher position is disposed closer to the side of the perforated waste storage means for storing the perforated waste than the bent portion at the lower position.   8. The perforating apparatus according to claim 7, wherein the bent portion at the high position is disposed at a position where the perforated scrap falling by separating the conveying member from the bent portion at the high position avoids the bent portion at the low position. Drilling device.   The punching device according to any one of claims 1 to 8, wherein the punching waste separation promoting means separates the punching waste on the conveying member by adding a bending shape to the punching waste before and after the bending portion. A perforating apparatus comprising a bending shape additional member for promoting.   10. The punching device according to claim 9, wherein the bending shape addition member is an idler roller.   11. The punching device according to claim 10, wherein the idler roller is formed of a concavo-convex shape portion having a concavo-convex surface formed on an outer periphery thereof.   In a post-processing apparatus that performs post-processing of a transfer target after forming an image, the punching device according to any one of claims 1 to 11 and the transfer target punched by the punching device are conveyed. A post-processing apparatus comprising a conveying means. In an image forming apparatus for forming an image on a transfer target for punching,
An image forming means for forming an image on a transfer object;
An image forming apparatus comprising: the punching device according to any one of claims 1 to 11, which punches a transfer body on which an image is formed by the image forming unit.   The image forming apparatus according to claim 13, wherein the image forming unit forms a toner image by an electrophotographic method.

Images