CN206154933U - Sheet finishing apparatus and image forming apparatus - Google Patents

Abstract

The utility model provides a paper post-processing device and an image forming device. The paper post-processing device comprises: two impellers, which are oppositely arranged rolling wheels; and the center line between the two said dispensing wheels coincides with the center line between the two said impellers; the sticky paper tube is conveyed below the center line of the two said dispensing wheels with an adhesive The gummed paper; the pressure roller, which is arranged below the center line of the two loose paper wheels, to squeeze the paper adhered to the gummed paper. The utility model takes the center of the sides of multiple sheets of paper P as a symmetrical point, so that the sheets of paper P on both sides are scattered sideways, which can not only ensure the pasting area, but also beautify the appearance.

Description

Paper post-processing device and image forming device

technical field

The utility model relates to the field of image formation, in particular to a paper post-processing device for binding paper discharged from an image forming device into a book, and an image forming device using the paper post-processing device.

Background technique

Most existing office spaces use a set of image forming devices (MFP: Multi-Functional Peripheral) as public office equipment. The image forming devices operate through the following steps: the image reading device scans the Original, image data is generated, and then a toner image is formed on the surface of the photoreceptor, and then the toner image on the photoreceptor is transferred to the transfer belt device, and the transfer belt device transfers the toner image to the medium On the upper side, the medium on which the toner image is transferred passes through the fuser to pressurize and heat both sides of the medium to fix the toner image on the medium, and the fixed medium is discharged to the discharge tray.

Some image forming apparatuses include a sheet post-processing device, that is, a device that performs binding processing on sheets discharged from the image forming apparatus. The existing paper P binding methods include two types of gluing and punching binding, wherein the gluing method is to let the paper P spread out in a wedge shape so as to ensure the pasting area. However, if the method of spreading to one side is adopted, the more the number of sheets of paper P, the greater the misalignment between the first page and the last page, which is not beautiful.

Utility model content

In order to solve the above-mentioned problems in the prior art, the utility model provides a paper post-processing device with an aesthetic effect after bonding the paper into a book, and an image forming device using the paper post-processing device.

Specifically, a paper post-processing device according to an embodiment of the present invention includes:

The impeller is two rolling wheels arranged oppositely;

There are two dispensing wheels, which are arranged oppositely between the two impellers, and the center line between the two dispensing wheels coincides with the center line between the two impellers;

Adhesive paper cylinder, conveying adhesive paper with adhesive on one side below the center line of the two said dispensing wheels;

The pressure roller is arranged below the centerlines of the two paper loosening wheels, so as to squeeze the paper adhered to the gummed paper.

Another embodiment of the present invention provides an image forming device, comprising:

The original loading table is used to place the original so that the information on the original can be read;

The image forming part obtains an optical analog image signal by scanning the original, and then passes the optical analog image signal through toner to form a toner image on the photosensitive part;

a transfer section that transfers the toner image formed on the photosensitive section onto paper and outputs it; and

A paper post-processing device that receives output paper and processes it, the paper post-processing device further includes:

The impeller is two rolling wheels arranged oppositely;

There are two dispensing wheels, which are arranged oppositely between the two impellers, and the center line between the two dispensing wheels coincides with the center line between the two impellers;

Adhesive paper cylinder, conveying adhesive paper with adhesive on one side below the center line of the two said dispensing wheels;

The pressure roller is arranged below the centerlines of the two paper loosening wheels, so as to squeeze the paper adhered to the gummed paper.

In this embodiment, the center of the sides of the multiple sheets of paper P is used as a symmetrical point, and the papers P on both sides are spread sideways, which can not only ensure the pasting area, but also beautify the appearance.

Description of drawings

FIG. 1 is a schematic diagram of the internal structure of an image forming device and a paper post-processing device according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the working state of the impeller and the loose paper wheel in an embodiment of the present invention;

Fig. 3 is a schematic diagram of the working state of the paper post-processing device in an embodiment of the present invention;

Fig. 4 is a schematic diagram of another working state of the paper post-processing device shown in Fig. 3;

Fig. 5 is a schematic diagram of the working state of the pressure roller in an embodiment of the present invention.

detailed description

Next, embodiment of this invention is demonstrated.

In FIG. 1 , the sheet post-processing apparatus includes a staple binding unit 2 for binding a plurality of sheets of paper P with staples, a perfect binding unit 3 for glue binding without using staples, and a paper sheet P to be processed from an image forming apparatus 100. The discharged paper P is conveyed to the first conveyance part 4 of the perfect binding part 3, the second conveyance part 5 which branches off from the first conveyance part 4 and conveys the paper P to the staple binding part 2, and a plurality of discharge trays 6. A discharge tray unit 7 arranged to be movable up and down. In addition, the bundle of paper sheets bound by the staple binding unit 2 and the perfect binding unit 3 is discharged to the paper discharge tray 6 of the paper discharge tray unit 7 .

MFP 100 includes paper feeding cassette unit 102 , image forming unit (not shown), transfer unit (not shown), and paper discharge roller unit 103 in apparatus main body 101 . For example, a toner image formed by the image forming processing section is transferred onto the paper P supplied from the paper feeding cassette section 102 . Then, the unfixed toner image transferred onto the paper P is fixed by the transfer unit, and the paper P on which the toner image is fixed is discharged out of the machine by the discharge roller unit 103 . The paper P discharged from the paper discharge roller portion 103 is supplied to a paper post-processing device.

MFP 100 has document placement table 104 . The sheet-shaped originals placed on the original feeding table 104A are fed one by one to a transfer unit (not shown), and the read original information is temporarily stored in the storage unit 105 . For example, document information sent from a computer (not shown), document information read by the scanner via ADF 104 , paper information such as the number of printed sheets of printing paper P, and the thickness of printing paper P are stored in storage unit 105 .

The operation unit 106 of the image forming apparatus 100 can perform various operations while viewing the display screen displayed on the display unit 107 . The control unit 108 performs overall control of the MFP, and transmits paper information such as the number of printed sheets and the thickness of printing stored in the storage unit 105 to the finisher control unit 150 . The finisher control unit 150 is arranged on the side of the image forming apparatus 100 in this embodiment, but may be arranged on the side of the sheet post-processing apparatus.

The operation unit 106 selects the binding method of the paper P by the staple binding unit 2 or the perfect binding unit 3 in the paper post-processing apparatus. In addition, when perfect binding is selected, the first binding strength adjustment mode and the second binding strength adjustment mode can be selected. The first binding strength adjustment mode and the second binding strength adjustment mode are set with a standard strength, a first binding strength whose binding strength is stronger than the standard strength, and a second binding strength whose binding strength is stronger than the first binding strength, and the user can select . Selection of these modes and strengths is displayed on, for example, a touch-panel display unit 107 of the operation unit 106 , and is selected when the operator presses a corresponding display.

In the paper post-processing apparatus, the perfect binding unit 3 includes a rotating paddle 302 near the paper discharge side of the paper feed roller 301 arranged at the conveyance end portion of the first conveyance unit 4, and a paddle 302 that reciprocates within a predetermined range. The first paddle 302A of the rotary paddle unit 302 and the control unit 305 control the conveyance rear end of the discharged paper P from both sides by turning the lever-shaped control part (grip) 305 . Also, the discharged paper P stands by on the standby tray 303 . Here, the conveyance direction of the paper P is set as the vertical alignment direction, and the direction of the paper surface perpendicular to the longitudinal alignment direction is set as the horizontal alignment direction.

The standby tray 303 is inclined upward in the front of the longitudinal alignment direction, and when a sheet P is supplied, it opens left and right outward in the transverse alignment direction to drop the loaded paper P to the processing tray 304 below. At this time, the grasping action of the above-mentioned grip part is released, and at approximately the same time, the rotating paddle part 302 starts to rotate. P falls to the processing tray 304 . At this time, the paddle with a long paddle blade presses the paper P backward in the longitudinal alignment direction while contacting the surface of the paper P. FIG. At the rear of the processing tray 304 in the longitudinal alignment direction, a positioning part 306 is arranged, and the rear end of the paper P touches the positioning part 305 to perform positioning of the paper P in the longitudinal alignment direction, so as to align the rear end of the paper P.

In the glue binding part 3, on the surface of the rear end part in the longitudinal alignment direction of the paper P, although a double-sided adhesive tape with strong adhesiveness as described later is pasted, even if the subsequent binding paper contacts and moves thereon, The next binding paper will not be pasted on the double-sided adhesive tape immediately, and the subsequent paper will reach the rear end of the positioning part 306 smoothly. The above-mentioned double-sided adhesive tape is bonded by applying pressure to the paper.

Fig. 2 is a schematic diagram of the working state of the impeller and the loose paper wheel in one embodiment of the present invention; Fig. 3 is a schematic diagram of the working state of the paper post-processing device in one embodiment of the present invention; Fig. 4 is a schematic view of the paper post-processing device shown in Fig. 3 Another schematic view of the working state; FIG. 5 is a schematic view of the working state of the pressure roller in an embodiment of the present invention.

As shown in FIGS. 2-5 , the paper post-processing device in one embodiment of the present invention generally includes an impeller 10 , a paper loosening wheel 20 , a sticky paper cylinder 30 and a pressure roller 40 .

The impellers 10 are two opposite rolling wheels, which use the channel between the two impellers 10 to restrictively transport the paper P transported by the first transporting part 4 to the paper distributing wheel 20 described below.

The loose paper wheel 20 has two and is oppositely arranged between two impellers 10, and the center line between the two loose paper wheels 20 coincides with the center line between the two impellers 10; The restricted and concentrated paper P will be sent directly between the two loose paper wheels 20 .

This sticky paper cylinder 30 conveys one side to have adhesive tape 31 of sticky agent below the center line of two loose paper wheels 20; glued together.

The pressing roller 40 is arranged below the center line of the two paper dispensing wheels 20 to squeeze the paper P adhered with the gummed paper 31 to complete the booklet processing of the paper P.

During operation, the multiple sheets of paper P conveyed by the first conveying unit 4 that need to be glued enter the restricted area formed between the two impellers 10 , and at this time, the sides of the multiple sheets of paper P are at the same level. The impeller 10 transports the neatly arranged paper P to between the two paper distributing wheels 20. The two paper dispensing wheels 20 first rotate in the opposite direction, and use the friction on the surface of the paper dispensing wheel 20 to make the sides of the neatly arranged paper P become two sides. A V-shaped structure with high middle and low, and then the two paper dispensing wheels 20 rotate in opposite directions to transport the paper P under the V-shaped structure. The side of the V-shaped structure of the conveyed paper P is first in contact with the side of the glued paper 31 below with the adhesive, and then enters between the two pressure rollers 40, under the extrusion of the pressure roller 40, The adhesive on the gummed paper 31 is in contact with the sides of each paper P respectively, and forms an adhesive relationship.

In this embodiment, the center of the sides of the multiple sheets of paper P is used as a symmetrical point, and the papers P on both sides are spread sideways, which can not only ensure the pasting area, but also beautify the appearance.

In one embodiment of the present utility model, in order to limit the position of the paper P conveniently, the diameter of the impeller 10 may be larger than that of the paper dispensing wheel 20 , and its rotation direction is opposite rotation. When the impeller 10 is working, the paper P sent by the first conveying part 4 enters between the two impellers 10, and the two impellers 10 rotate in opposite directions, so that multiple sheets of paper P are limited between the two impellers 10, so that the multiple sheets of paper P P can enter the loose paper wheel 20 neatly.

In order to facilitate the bonding of the adhesive paper 31, in one embodiment of the present invention, on the conveying track of the adhesive paper cylinder 30 and at a position corresponding to the center line between the two loose paper wheels 20, a paper feeder is provided. The glued paper 31 covers the bonding groove 33 through the bonding groove 33 . When the adjusted sheets of paper P are in contact with the glued paper 31, the glued paper 31 is driven by the continuously descending paper P to move downward at the same time. close together to form a corresponding V-shaped structure, so that it can be pressed onto the paper P without deformation after entering the press roller 40 .

In another embodiment of the present utility model, a cutter 32 for cutting the adhesive paper 31 may be provided on the conveying track of the adhesive paper cylinder 30 . When the transported adhesive paper 31 reaches a predetermined width, the cutter 32 can be controlled to cut off the adhesive paper 31 . The specific position of the cutter 32 can be adjusted according to the different sizes of the paper P, so that the adhesive paper 31 can be better bonded to the paper P of different sizes.

In one embodiment of the present invention, in order to facilitate the rubbing of the paper P by the paper dispensing wheel 20 , a friction layer may be provided on the surface of the paper dispensing wheel 20 . The position of the paper P can be controlled more precisely through the friction layer, thereby improving the bonding effect.

Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the present invention. These new embodiments can be implemented in other various forms, and various omissions, substitutions, combinations, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the present invention, and are included in the present invention described in the claims and its equivalent scope.

Claims (10)

1. The paper post-processing device is characterized in that, comprising, The impeller is two rolling wheels arranged oppositely; There are two dispensing wheels, which are arranged oppositely between the two impellers, and the center line between the two dispensing wheels coincides with the center line between the two impellers; Adhesive paper cylinder, conveying adhesive paper with adhesive on one side below the center line of the two said dispensing wheels; The pressure roller is arranged below the centerlines of the two paper loosening wheels, so as to squeeze the paper adhered to the gummed paper. 2. The paper post-processing device according to claim 1, wherein: The diameter of the impeller is larger than that of the dispensing wheel, and its rotation direction is relative rotation. 3. The paper post-processing device according to claim 1, wherein: On the conveying track of the sticky paper cylinder and at a position corresponding to the centerlines of the two paper dispensing wheels, a bonding groove for passing the paper is arranged, and the adhesive paper is located on the bonding groove. 4. The paper post-processing device according to claim 3, characterized in that, A cutting knife for cutting the adhesive paper is arranged on the conveying track of the adhesive paper cylinder. 5. The paper post-processing device according to claim 1, characterized in that, The surface of the dispensing wheel is provided with a friction layer. 6. An image forming apparatus comprising, The original loading table is used to place the original so that the information on the original can be read; The image forming part obtains an optical analog image signal by scanning the original, and then passes the optical analog image signal through toner to form a toner image on the photosensitive part; a transfer section that transfers the toner image formed on the photosensitive section onto paper and outputs it; and A paper post-processing device that receives output paper and processes it, the paper post-processing device further includes: The impeller is two rolling wheels arranged oppositely; There are two dispensing wheels, which are arranged oppositely between the two impellers, and the center line between the two dispensing wheels coincides with the center line between the two impellers; Adhesive paper cylinder, conveying adhesive paper with adhesive on one side below the center line of the two said dispensing wheels; The pressure roller is arranged below the centerlines of the two paper loosening wheels, so as to squeeze the paper adhered to the gummed paper. 7. The image forming apparatus according to claim 6, wherein: The diameter of the impeller is larger than that of the dispensing wheel, and its rotation direction is relative rotation. 8. The image forming apparatus according to claim 6, wherein: On the conveying track of the sticky paper cylinder and at a position corresponding to the centerlines of the two paper dispensing wheels, a bonding groove for passing the paper is arranged, and the adhesive paper is located on the bonding groove. 9. The image forming apparatus according to claim 8, wherein: A cutting knife for cutting the adhesive paper is arranged on the conveying track of the adhesive paper cylinder. 10. The image forming apparatus according to claim 6, wherein: The surface of the dispensing wheel is provided with a friction layer.