JP6007371B2 - Paper processing apparatus and paper processing method - Google Patents

Description

  The present invention relates to a paper processing apparatus and a paper processing method.

  In recent years, pressure-sensitive postcards for information concealment have become widespread. Crimp postcards are created by a paper processing method in which the paper is folded into a postcard size and bonded in a peelable manner, and can be mailed as postal mail for a postcard fee. The contents can be easily confirmed by peeling on the surface where the agent is applied. Patent Document 1 below relates to an apparatus for creating a pressure-bonded postcard by such a paper processing method, using varnish as an adhesive, applying the varnish to the surface of the paper while being conveyed by a conveying means, folding, pressing Techniques to do this are disclosed. Patent Document 2 below discloses a technique for applying, folding, and pressing an adhesive parallel to the edge of a sheet.

Japanese Patent No. 4105066 JP 2010-13247 A

In the said patent document 1, it is necessary to dry a varnish before performing a folding process. For this reason, paper processing cannot be performed quickly unless a varnish drying device is provided. However, UV dryers often used as varnish dryers are very large and expensive.

Further, in Patent Document 2, since the adhesive is applied only to a part of the paper, almost the entire surface of the paper cannot be adhered, and the adhesive strength is relatively weak.

SUMMARY OF THE INVENTION The present invention solves the above-described problems, and a paper processing apparatus and paper processing capable of applying an adhesive to a wide area of a surface where papers are overlapped without installing a large and expensive device. The purpose is to provide a method.

In order to achieve the above object, a paper processing apparatus according to the present invention includes a transport unit that transports a paper, an adhesive application unit that applies an adhesive to the paper transported by the transport unit, and an adhesive application surface of the paper. In the paper processing apparatus provided with a folding part that is folded so that the inner side is inside, and a pressing part that presses the folded paper, the adhesive application unit has a streak shape along the conveyance direction on the paper conveyed by the conveyance means. The press part is an adhesive layer that is formed by spreading the adhesive applied in a streak shape, and presses the peeled pieces of the folded paper so that they can be peeled off. A plurality of application nozzles are provided in the conveyance width direction of the paper, the conveyance means includes a conveyance roller that is brought into contact with the adhesive application surface of the paper, and the conveyance rollers are divided into a plurality of the conveyance width direction of the paper. Installed, folding part pinches paper A folding roller that forms a fold line by feeding, a folding tray in which the leading end side of the paper is inserted in a switchback manner for a predetermined length, and a feeding roller that rolls on the adhesive application surface of the paper and feeds the paper to the folding tray, A plurality of feed rollers are divided and installed in the paper conveyance width direction, and both the conveyance rollers and the feed rollers are installed so as not to overlap the position of the application nozzle in the paper conveyance width direction, and the pressure rollers are adjacent to each other. The paper is pressed with a predetermined pressing force where the line-shaped adhesives overlap .

Furthermore, in each of the above-described configurations, the folding unit includes a folding roller that sandwiches and conveys the sheet to form a folding line, and a folding tray into which the leading end of the sheet is inserted into the switchback type for a predetermined length on the upstream side of the folding roller. A plurality of guide members that guide the adhesive application surface of the folding tray are divided in the sheet conveyance width direction.

Further, in each of the above-described configurations, a plurality of adhesive application portions and folding portions are provided along the sheet conveyance direction.

Further, the paper processing method according to the present invention includes an adhesive application step for applying an adhesive to a paper conveyed by the conveyance means, a folding step for folding the adhesive application surface of the paper inward, and the folded paper. A paper processing method including a pressing process of pressing by a pressing roller, wherein an adhesive is applied in a streak pattern along the paper transport direction by an application nozzle in the adhesive application process, and an adjacent streak is formed in the pressing process. It is characterized by adhering the folded pieces of the folded paper in a peelable manner with an adhesive layer that is formed by being spread so as to overlap each other .

According to the paper processing apparatus of the present invention, the adhesive application unit includes the application nozzle that applies the adhesive in a streak pattern along the transport direction to the paper transported by the transport unit, and the pressing unit has the streak shape. The adhesive layer formed by spreading the applied adhesive is equipped with a pressure roller that releasably adheres the folded pieces of the folded paper, so there is no need to install a large and expensive device. Adhesive can be applied to a wide range of surfaces that are folded inside the paper.

When a plurality of application nozzles are installed in the paper conveyance width direction, a plurality of adhesives can be applied in a streak pattern even on wide paper, and the plurality of adhesives are pressed. By spreading, an adhesive layer is easily formed over a wide area of the adhesive application surface of the paper.

Further, the transport means includes a transport roller that is in rolling contact with the adhesive application surface of the paper. When the transport rollers are divided and arranged in the paper transport width direction, the transport roller transports the paper after the adhesive application. At this time, adhesion of the adhesive to the transport roller can be prevented, and the paper can be transported properly.

Furthermore, when a plurality of folding section feed rollers are installed in the paper conveyance width direction, a feed roller that rolls into contact with the adhesive application surface of the paper when feeding the paper after application of the adhesive to the folding tray. It is possible to prevent the adhesive from adhering to the surface.

Furthermore, when a plurality of guide members for guiding the adhesive application surface of the folding tray are provided in the paper conveyance width direction, when the paper after adhesive application is inserted into the folding tray, the guide member It is possible to prevent adhesion of the adhesive.

Furthermore, when a plurality of adhesive application sections and folding sections are installed along the paper conveyance direction, the adhesive can be properly applied to the necessary ranges of both the front and back surfaces of the paper, A plurality of folding lines can be formed by performing a plurality of folding processes.

Furthermore, the sheet processing method according to the present invention includes an adhesive application step for applying an adhesive to a sheet conveyed by the conveying means, a folding step for folding the adhesive application surface of the sheet inward, and a folded sheet. A paper processing method comprising a pressing step of pressing by a pressing roller, wherein the adhesive is applied in a streak along the paper transport direction by an application nozzle in the adhesive application step, and is applied in a streak in the pressing step. The folded pieces of the folded paper are releasably adhered by the adhesive layer formed by spreading and spreading the applied adhesive, so that the adhesive can be easily applied to a wide area of the paper.

1 is a schematic configuration diagram of a sheet processing apparatus according to an embodiment of the present invention. It is a perspective view of the paper processed by the paper processing device. It is the schematic which shows the state of the paper at the time of processing the said paper. It is a perspective view which shows a part of adhesive agent application part of the said paper processing apparatus, and a part of folding part. It is an embodiment figure of the above-mentioned folding part. It is an embodiment figure of the press part of the said paper processing apparatus. It is a development perspective view of the paper. It is a development perspective view of the paper. It is the structure schematic of the paper processing apparatus concerning other embodiment of this invention. It is a perspective view of the paper processed by the paper processing apparatus. It is the structure schematic of the paper processing apparatus concerning further another embodiment of this invention. It is a perspective view of the paper processed by the paper processing apparatus. It is the schematic which shows the state of the paper at the time of processing the said paper. It is an embodiment figure of the paper processing apparatus concerning further another embodiment of this invention. It is an embodiment figure of the paper processing apparatus concerning further another embodiment of this invention.

(First embodiment)
A first embodiment of a sheet processing apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of the sheet processing apparatus S. The paper processing apparatus S includes a supply unit 1, an adhesive application unit 2, a folding unit 3, a pressing unit 4, and a stacker unit 5 in order from the upstream side to the downstream side in the conveyance direction F of the paper P.

The supply unit 1 includes a stacking table 11, a belt conveying unit 12, and a supply roller 13. The loading table 11 is loaded with unprocessed paper P before various types of processing such as adhesive application and folding are performed. The belt conveying means 12 is an air suction type, and conveys the paper P on the stacking table 11 one by one from the top to the downstream side. A pair of upper and lower supply rollers 13 are installed on the downstream side of the belt conveying means 12. The belt conveying means 12 and the supply roller 13 are linked to a supply drive motor via a transmission mechanism (not shown).

The adhesive application unit 2 includes an application nozzle 25 and a conveyance means 22 for the paper P. The application nozzle 25 applies an adhesive to the upper surface of the paper P from above. As the adhesive, an adhesive layer formed by spreading the adhesive is used to bond the folded pieces of the folded paper in a peelable manner, for example, an adhesive for a crimped postcard or a weak adhesive. Adhesives and the like. The amount of adhesive discharged from the application nozzle 25 can be adjusted. The amount of the adhesive is such that the adhesive applied in a streak form by the application nozzle 25 is applied to the adhesive application surface by either or both of the folding rollers 34 and 35 of the folding part 3 and the pressing roller 46 of the pressing part 4. It is spread and adjusted so that an adhesive layer can be formed over a wide range of the folded inner surface of the paper P. A plurality of application nozzles 25 are provided in the transport width direction W of the paper P, and three in the first embodiment (see FIG. 4). The position of the application nozzle 25 in the width direction of the paper P can be adjusted, and FIG. 4 shows an example in which the application nozzle 25 is adjusted to positions at equal intervals in the center in the width direction of the paper P and on the left and right sides thereof. ing.

In FIG. 1, the transport means 22 for paper P includes a transport path plate 21, a transport belt 24, and a transport roller 23. The transport path plate 21 is installed substantially horizontally at a position below the transport belt 24 that travels on the upper side. The transport belt 24 extends in the front-rear direction and transports the paper P on the transport path plate 21 to the downstream side. The conveyance roller 23 is installed before and after the application nozzle 25 and presses the paper P on the conveyance belt 24 from above. The conveyance roller 231 on the downstream side of the application nozzle 25 is brought into contact with the adhesive application surface of the paper P after application of the adhesive. The conveying belt 24 and the conveying roller 23 are installed facing the upper and lower sides of the conveying surface of the paper P, and a plurality of the conveying belt 24 and four sets in the present embodiment are arranged in the conveying width direction W of the paper P (see FIG. 4). ).

As shown in FIG. 4, the transport belts 24 and the transport rollers 23 are arranged at positions that do not overlap with the plurality of application nozzles 25 in the width direction of the paper P. That is, each of the transport belts 24 and the transport rollers 23 is disposed outside the coating nozzle 25 disposed at both ends in the width direction of the paper P, and between the adhesive coating nozzle 25 at both ends and the central coating nozzle 25. .

The drive roller 241 of the conveyance belt 24 shown in FIG. 1 is linked to, for example, the drive motor of the supply unit 1, and the sheet P is fed at the same conveyance speed as the belt conveyance unit 12 and the supply roller 13 of the supply unit 1. Transport.

The folding part 3 shown in FIG. 1 folds the paper P so that the adhesive application surface is on the inside. The folding unit 3 includes two folding trays 30 and 31 and four folding rollers 32 to 35. The folding trays 30 and 31 are inserted so that the leading edge of the paper P can be reversed by a predetermined length in a switchback manner. In FIG. 1, the upstream folding tray 30 is installed so as to protrude vertically upward from the conveyance surface of the paper P. On the other hand, the folding tray 31 on the downstream side protrudes vertically downward from the transport surface of the paper P. Each of the folding trays 30 and 31 is detachably mounted on a tray mounting portion (not shown).

Each folding tray 30, 31 includes guide members 42, 43, 47, 48 that extend in the length direction of the folding tray 30, 31 and guide the front and back surfaces of the paper P. The guide members 42, 43 and 47, 48 face each other in the front-rear direction and are spaced apart from each other by a predetermined distance, and the insertion spaces T 1, T 2 for the paper P are formed between the guide members 42, 43, 47, 48. . A plurality of guide members 42, 43, 47, and 48 are installed in the conveyance width direction W of the paper P (see FIG. 4). Further, stoppers 36 and 37 whose positions can be changed in the longitudinal direction of the folding trays 30 and 31 are provided orthogonal to the guide members 42, 43, 47 and 48 so as to block the insertion spaces T 1 and T 2 of the paper P.

The folding rollers 32 to 35 are in contact with each other to form a nip portion, nipping and conveying the paper, and linked to a driving motor for the folding portion 3 via a linkage mechanism (not shown). . The two folding rollers 32 and 33 on the upstream side in the transport direction of the paper P are configured as feed rollers that are in contact with the adhesive application surface of the paper P and feed the paper to the folding trays 30 and 31, respectively. The folding rollers 32 and 33 as feed rollers are divided in the conveyance width direction W of the paper P so as to prevent the adhesive applied to the paper P from adhering, and a plurality, four in this embodiment, are installed ( (See FIG. 4). The four feed rollers 32 and 33 are arranged at intervals in the width direction of the paper P so that the divided roller portions do not overlap the position of the coating nozzle 25 in the width direction of the paper P. Has been. In FIG. 4, the positions of the divided feed rollers 32 and 33 in the width direction W are the same as those of the upstream-side transport roller 231. However, each of the divided roller portions can be individually adjusted in the width direction with respect to the roller shaft.

On the other hand, the two folding rollers 34 and 35 on the downstream side in the transport direction of the paper P are integrally formed longer than the length in the width direction of the paper P, and can hold and transport the folded paper P with the full width.

The folding rollers 33, 34, and 35 end at the stoppers 36 and 37 of the folding trays 30 and 31, hold the curved sheet P between the pair of folding rollers 33, 34, and 35 and convey it. Polygonal lines q1 and q2 are formed.

The pressing unit 4 presses the folded paper P. A pair of upper and lower pressing rollers 46 are arranged in the pressing portion 4. The distance between the pair of pressing rollers 46 can be adjusted, and the sheet is folded in the adhesive layer formed by being applied in a streaky manner in the adhesive application unit 2 and being spread by the folding rollers 34 and 35. It adjusts so that the fold pieces P1, P2, and P3 of P may be bonded in a peelable manner. The pressing roller 46 is interlocked and connected to a driving motor (not shown) for the folding unit 3 so as to rotate in synchronization with the folding rollers 32 to 35.

In FIG. 1, the stacker unit 5 includes a transport unit 51, a discharge table 52, and a presser roller 53. The discharge table 52 is disposed in an inclined posture at the downstream end of the transport means 51. The presser roller 53 is disposed on the upper side of the transport unit 51. The conveying means 51 is linked to a paper receiving drive motor via a transmission mechanism (not shown). The paper transport speed of the transport means 51 is set to be smaller than the paper discharge speed by the pressing roller 46.

Hereinafter, a method of processing the paper P using the paper processing apparatus S will be described. FIG. 2 is a perspective view of a state in which a postcard, which is a processed product of the paper P created using the paper processing apparatus S according to the first embodiment, is peeled off at the adhesive application surface. As shown in the figure, the paper P is folded in an inner trifold by the paper processing apparatus S. That is, the first, second, and third fold pieces P1, P2, and P3 that divide the paper P into three equal parts are folded along two fold lines q1 and q2. In FIG. 2, the center second folded piece P2 is located at the lowest position, the first folded piece P1 is located at the highest position, and the third folded piece P3 is located between the second folded piece P2 and the first folded piece P1. Is sandwiched. Of the front and back surfaces of each of the folded pieces P1, P2, and P3, an adhesive layer is formed on the surface that is folded inward.

FIG. 3 schematically shows the state of the paper P in the paper processing method of the first embodiment. As shown in FIG. 3 (a), the paper P supplied to the adhesive application unit 2 in the supply process has a streak-like adhesive on the first fold piece P1 and the second fold piece P2 in the adhesive application process. Is applied. The adhesive application range may be the downstream third fold piece P3 instead of the second fold piece P2, and as a result, the first fold piece P1 and the third fold piece P3 may be the adhesive application range. Or you may apply | coat an adhesive agent to the whole surface of all the fold pieces P1, P2, and P3.

Next, as shown in FIG. 3B, in the folding process, the paper P is passed through the folding tray 30 so as to be transported upward, and then transported downward in a switchback manner. As shown in 3 (c), the surfaces of the second fold piece P2 and the third fold piece P3 are overlapped to form a second fold line q2. Subsequently, as shown in FIG. 3 (d), the back surface of the third folded piece P3 inserted into the folding tray 31 in a switchback manner and the surface of the first folded piece P1 from the folding tray 30 are overlapped, A first broken line q1 is formed. And it is conveyed to the press part 4 in the state shown in FIG.3 (e), is pressed by a press process, and is discharged | emitted to the discharge stand 51 at a discharge process.

Explaining each of these processes in more detail, in the supply process, the unfolded sheets P stacked on the stacking table 11 of the supply unit 1 shown in FIG. It is fed forward, sandwiched between the upper and lower supply rollers 13, and supplied to the front adhesive application unit 2.

In the adhesive application step, the paper P is transported forward by the transport means 22 and is pressed from above by the transport rollers 23 to maintain a flat state. Further, when passing under the application nozzle 25, the three adhesives are applied in a streak shape along the transport direction F. The application range of the adhesive is from the front end of the first fold piece P1 on the surface of the paper P to the rear end of the second fold piece P2.

At this time, since a plurality of application nozzles 25 are provided in the conveyance width direction W of the paper P, even a wide paper P can apply a plurality of streak-like adhesives along the conveyance direction. . Therefore, when conveyed by the folding rollers 34, 35 or the pressing roller 46, a plurality of streaky adhesives can be easily spread out, and a substantially uniform thickness can be applied to a wide range of the adhesive application surface of the paper P. An adhesive layer M can be formed.

Since a plurality of conveying rollers 231 installed downstream of the application nozzle 25 in the conveyance direction F of the paper P and in contact with the adhesive application surface of the paper P are divided and arranged in the conveyance width direction W of the paper P, the conveyance roller 231 is conveyed. The paper P can be transported without bringing the roller 231 into contact with the adhesive-applied portion of the paper P. Therefore, it is possible to suppress the conveyance roller 231 from being soiled. When the application of the adhesive in the adhesive application unit 2 is completed, the paper P is conveyed to the folding unit 3.

In the folding process, folding lines are formed in the order of the second folding line q2 and the first folding line q1 with the adhesive-coated surface of the paper P in the folding portion 3, and the paper P is folded. Specifically, as shown in FIG. 5A, the paper P is first fed into the nip portion between the folding rollers 32 and 33, and the front and back surfaces of the paper P are guided by the guide members 42 and 43 to be folded. The tray 30 is inserted into the insertion space T1.

At this time, as shown in FIG. 4, a plurality of folding rollers 32 as feed rollers are arranged in the conveyance width direction W of the paper P, so that the folding rollers 32 are placed on the adhesive application surface of the paper P. Even when the paper P is rolled and fed to the folding tray 30, it is possible to prevent the adhesive from adhering to the folding roller 32.

Further, since a plurality of guide members 42 for guiding the adhesive application surface of the folding tray 30 are provided in the conveyance width direction W of the paper P, the paper P after the adhesive application is inserted through the folding tray 30. When inserted into T1, adhesion of the adhesive to the guide member 42 can be prevented.

In FIG. 5A, the length from the nip portion of the folding rollers 33, 34 to the stopper 36 of the folding tray 30 is the total length of the first folded piece P1 and the second folded piece P2, that is, the sheet P It is set to 2/3 of the length in the transport direction. Therefore, when the paper P is further fed by the folding rollers 32 and 33 after the leading edge of the paper P comes into contact with the stopper 36 of the folding tray 30, the paper P curves downward. And it is nipped and conveyed by the nip part of the folding rollers 33 and 34, and the 2nd folding line q2 is formed.

As the folding rollers 33 and 34 rotate, the leading edge of the first folded piece P1 of the paper P moves backward in the insertion space T1 of the folding tray 30 in a switchback manner, and as shown in FIG. In a state where the adhesive application surface of the fold piece P2 and the third fold piece P3 are overlapped, the second fold line q2 is sent to the insertion space T2 of the lower fold tray 31 with the second fold line q2 at the head.

The length from the nip portion of the folding rollers 34 and 35 to the stopper 37 of the folding tray 31 is the length of the second folded piece P2 (or the first folded piece P1), that is, the length in the transport direction of the unfolded sheet P. It is set to a length corresponding to one third of the length. After the second folding line q2 comes into contact with the stopper 37, when the sheet P is further fed by the folding rollers 33 and 34, the sheet P is bent at the first folding line q1 portion. The first fold line q1 portion is sandwiched between the nip portions of both fold rollers 34 and 35 to form the first fold line q1 and conveyed downstream. In addition, the sheet P is sandwiched and conveyed by the folding rollers 34 and 35, so that the adhesive applied in a streak pattern to the first and second folded pieces P1 and P2 is formed on the surface of the first folded piece P1 and the third piece. An adhesive layer is formed between the back surface of the folded piece P3 and between the second folded piece P2 and the front surface of the third folded piece P3.

Even when the first folding line q1 is formed by the lower folding tray 31, the folding roller 33 as the feeding roller and the guide member 47 are provided in the transport width direction W of the paper P as in the case of the upper folding tray 30. Therefore, it is possible to prevent the adhesive from adhering to the folding roller 33 and the guide member 47. That is, by forming the second fold line q2, the adhesive application surface of the second fold piece P2 is overlapped with the third fold piece P3 and is folded so that the adhesive application surface is on the inside. Therefore, the folding roller 33 and the guide member 47 do not adhere an adhesive when transporting the place where the second folded piece P2 and the third folded piece P3 are overlapped. On the other hand, since the surface of the first folded piece P1 is still exposed on the adhesive application surface, the folding roller 33 and the guide member 47 are used to convey the first folded piece P1. It will be in contact with the adhesive application surface. However, since the folding roller 33 and the guide member 47 are separately installed, it is possible to prevent the adhesive from adhering to the folding roller 33 and the guide member 47.

As shown in FIG. 5 (c), the paper P is folded at first and second folding lines q1 and q2, respectively, and the inner tri-fold where the back surface of the third folded piece P3 and the front surface of the first folded piece P1 are overlapped. It is in the state of. In this state, the paper P is sent to the pressing unit 4 with the first folding line q1 as the head.

As shown in FIG. 6, in the pressing step, the pair of pressing rollers 46 sandwich and press the entire width of the paper P from above and below. Further, the stripe applied by the adhesive application unit 2 in a stripe shape by the pressing force of the pressing roller 46, and pushed and spread on the overlapping surface of the folded pieces P1, P2, and P3 by nipping and conveying the folding rollers 34 and 35. The shaped adhesive is further spread to form a substantially uniform adhesive layer. And each fold piece P1, P2, P3 is adhere | attached so that peeling is possible. As described above, in the adhesive application unit 2, the adhesive is applied in a streak shape along the conveyance direction F. Therefore, before passing the folding rollers 34 and 35 and before the pressing step, a predetermined amount of the paper P is set. The adhesive is attached only to the region. Then, by the nipping and conveying of the folding rollers 34 and 35 and the pressing with the pressing force of the pressing roller 46, the adhesive is thinly stretched on the adhesive-coated surface of the paper P, and the adhesive layer M is spread over a wide range. Can be formed.

In the discharging process, the paper P discharged onto the conveying means 51 of the stacker unit 5 shown in FIG. 1 is conveyed on the belt of the conveying means 51. The conveying speed of the conveying means 51 is set lower than the discharging speed from the pressing portion 4 by the pressing roller 46. As a result, the continuously discharged paper P is superposed on the conveying means 51 in a scale shape. And it is loaded on the discharge stand 52 in a standing state.

7 and 8 show a state in which the paper P processed by the paper processing apparatus S is peeled off at the overlapping surface of the respective fold pieces P1, P2, and P3. FIG. 11 is the upper surface when it is placed, and is folded inward during processing. FIG. 8 shows the rear surface of the paper P, which is the lower surface of the mounting table 11 and includes the outer surface during processing. In FIG. 7, since all the fold pieces P1, P2, and 3 are folded inward, the adhesive layer M is formed in a wide range of all the fold pieces P1, P2, and P3. Further, in FIG. 8, the first fold piece P1 on the right side and the second fold piece P2 on the right side are outside after the processing, and thus the adhesive layer M is not formed. In FIG. 2, the adhesive layer M is formed only on the third folded piece P3 sandwiched between the first folded piece P1 and the second folded piece P2.

As described above, according to the paper processing method of the present embodiment, in the adhesive application process, the adhesive is applied in a streak pattern along the conveyance direction F of the paper P by the application nozzle 25. Since the adhesive applied in a streak shape is spread by the pressing force, the folds P1, P2, and P3 of the paper P folded by the adhesive layer M are detachably bonded by the adhesive layer. By using the paper P to which the agent has not been applied in advance, it is possible to easily create a processed product of the releasable paper P. In addition, an adhesive layer M is formed in a wide range on the overlapping surface of the paper P and can be adhered to each other, and a predetermined strength can be imparted to the processed product.

In the sheet processing apparatus S, the adhesive application unit 2 includes an application nozzle 25 that applies the adhesive in a streak pattern along the conveyance direction F to the paper P conveyed by the conveyance unit 22, and the pressing unit 4. Is provided with a pressure roller 46 that peels and adheres the folded pieces P1, P2, and P3 of the folded paper P with an adhesive layer M formed by spreading and spreading a linearly applied adhesive. An adhesive can be easily applied to the paper P to form a uniform adhesive layer, and a wide range of the folds P1, P2, and P3 can be bonded.

(Second Embodiment)
In the first embodiment, the paper P is folded in an inner trifold, but in the second embodiment, the paper P is folded in a fold in place of this. FIG. 9 is a schematic configuration diagram of a sheet processing apparatus Sa according to the second embodiment. In the following embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In FIG. 9, the folding tray 31 on the downstream side of the folding portion 3 protruding downward from the conveyance surface of the paper P in FIG. The turn guide 38 is detachably mounted on the tray mounting portion. The turn guide 38 guides the paper Pa downstream without forming a fold line. Therefore, in the paper Pa, the folding lines q1 and q2 are not two trifolds, but the folding line q1a is one bifold.

Moreover, in FIG. 9, the position of the stopper 36 of the folding tray 30 of the folding part 3a is set lower than in the first embodiment shown in FIG. The length from the folding rollers 33 and 34 to the stopper 36 is ½ the length of the paper Pa in the transport direction Fa.

FIG. 10 shows a state where a postcard as a processed product of the paper Pa processed by the paper processing apparatus Sa according to the second embodiment is peeled off at the adhesive application surface. In the figure, the paper Pa is folded in two at a folding line q1a that bisects the paper Pa. And the adhesive agent is apply | coated to the inner surface. This paper Pa is shorter than the length in the conveyance direction of the paper P according to the first embodiment in a state before being folded, and has a length that is two-thirds the length of the paper P according to the first embodiment. Used.

When processing the paper Pa, in the adhesive application step, the adhesive is applied to either the first folded piece P1a or the second folded piece P2a on the surface of the paper Pa from the application nozzle 25 shown in FIG. In addition, the application range of the adhesive in the adhesive application unit 2 may be both the first fold piece P1a and the second fold piece P2a. In the folding process, when one half of the length Fa of the paper conveyance direction Fa is inserted into the folding tray 30 of the folding portion 3a, the leading edge of the paper Pa comes into contact with the stopper 36, and the paper Pa is switched back. Reversely, it is nipped and conveyed by the folding rollers 33 and 34, and a first folding line q1a is formed. Thereafter, the leading edge of the paper Pa comes into contact with the turn guide 38 by the rotation of the folding rollers 33, 34, and is turned from diagonally downward to diagonally upward in FIG. 9, and is guided to the folding rollers 34, 35 on the downstream side. The paper Pa is nipped and conveyed by the folding rollers 34 and 35 and sent to the pressing unit 4. Thereafter, it is pressed by the pressing roller 46 and discharged to the stacker unit 5.

Thus, by changing the downstream folding tray 31 to the turn guide 38 and changing the position of the stopper 36, it is possible to easily produce a processed product of the folded paper Pa.

(Third embodiment)
In the first embodiment, the paper P is folded in an inner three fold, and in the second embodiment, the paper P is folded in a two. In the third embodiment, instead of these, the paper P is folded in an outer three fold. FIG. 11 is a schematic configuration diagram of a sheet processing apparatus Sb according to the third embodiment. In the paper processing apparatus Sb shown in FIG. 11, a plurality of adhesive application portions 2b and folding portions 3b are installed along the conveyance direction Fb of the paper Pb. The adhesive application part 2 b on the upstream side in the transport direction Fb of the paper Pb is the first application part 29, and the downstream side is the second application part 59. Further, the folding portion 3 b on the upstream side in the transport direction of the paper Pb is the first folding portion 39, and the downstream side is the second folding portion 89.

Both the first folding section 39 and the second folding section 89 are provided with only folding trays 30 and 80 on the upstream side protruding upward from the conveyance surface of the paper Pb, and folding trays protruding downward from the downstream paper Pb conveyance surface. The turn guides 38b and 88 are installed without being installed. Further, the position of the stopper 36 of the folding tray 30 of the first folding portion 39 is such that the length from the nip portion of the folding rollers 33 and 34 to the stopper 36 of the folding tray 30 is the conveyance direction of the paper Pb for the three folding. It is set at a position corresponding to two-thirds of the length. The position of the stopper 86 of the folding tray 80 of the second folding portion 89 is such that the length from the nip portion of both folding rollers 83 and 84 to the stopper 86 of the folding tray 80 is the length of the first folding piece P1b. The position is set to a length corresponding to one-third of the conveyance direction length of the three-fold paper Pb.

FIG. 12 is a perspective view of a state where the paper Pb processed using the paper processing apparatus Sb according to the third embodiment is peeled off at the adhesive application surface. As shown in the drawing, the first folded piece P1b of the paper Pb is folded at the top, the second folded piece P2b is folded at the center, and the third folded piece P3b is folded at the bottom.

FIG. 13 schematically shows the state of the paper Pb in the paper processing method according to the third embodiment. In the third embodiment, unlike the first and second embodiments, the first folded piece P1b is located on the downstream side in the transport direction Fb of the paper Pb, and the top of the transported paper Pb is the third fold. It becomes a piece P3b. Therefore, on the mounting table 11 shown in FIG. 11, the paper Pb is placed in the direction in which the third folded piece P3b is on the downstream side in the transport direction Fb of the belt transport unit 12 of the supply unit 1.

In the first adhesive application process, the paper Pb is applied in a streaky manner to the surface of the second folded piece P2b in the first application unit 29 as shown in FIG. 13A. In addition, the application range of the adhesive in the 1st application part 29 is good instead of the 2nd fold piece P2b, and is good also as the 1st fold piece P1b of an upstream, both the 2nd fold piece P2b and the 1st fold piece P1b. It is good. Then, the paper Pb is conveyed to the first folding part 39, and as shown in FIG. 13B, the adhesive application surface of the second folded piece P2b and the surface of the first folded piece P1b are folded inward, One folding line q1b is formed.

When the paper Pb reaches the second application part 59, an adhesive is applied to the back surface of the second folded piece P2b as shown in FIG. In the second application part 59, an adhesive may be applied to the back surface of the third folded piece P3b instead of or in addition to the back surface of the second folded piece P2b. In the second folding part 89, as shown in FIG. 13 (d), the adhesive application surface of the second fold piece P2b and the back surface of the third fold piece P3b are folded inward to form a second fold line q2b. In the state shown in 13 (e), it is conveyed to the pressing part 4 and pressed. In the third embodiment, as shown in FIG. 13E, the vertical direction of the paper Pb is opposite to the direction shown in FIG.

As described above, since a plurality of adhesive application portions 2b and folding portions 3b are installed along the conveyance direction Fb of the paper Pb, the adhesive can be applied to the paper Pb in a plurality of times. A plurality of folding lines can be formed by folding the sheet Pb a plurality of times so that the coating surface of the agent is on the inside. By using the turn guide 38b, the paper Pb can be turned upside down, the adhesive can be applied to the back surface as well as the back surface of the paper Pb, and the back surfaces can be folded inside. In particular, as in the case of the third embodiment, when two sets of the adhesive application unit 2b and the folding unit 3b are installed in the transport direction Fb of the paper Pb, the paper P can be easily folded into the outer trifold. it can.

(Fourth embodiment)
In the first to third embodiments, the sheets P, Pa, and Pb to be folded are sheet sheets, but in the fourth embodiment, continuous sheets are used instead. Then, an adhesive is applied to the continuous paper Pc, folded into an inner trifold, pressed, and cut at a predetermined position to process the paper Pc.

FIG. 14 is an embodiment diagram when processing the sheet Pc using the sheet processing apparatus Sc according to the fourth embodiment. The paper Pc, which is a continuous paper, is conveyed from the upper right to the lower left in FIG. Also in the sheet processing apparatus Sc shown in FIG. 14, a plurality of adhesive application sections 2c and folding sections 3c are installed along the conveyance direction Fc of the sheet Pc, as in the third embodiment. The sheet processing apparatus Sc includes a supply unit (not shown), a first coating unit 29c, a first folding unit 39c, a second coating unit 59c, a second folding unit 89c, from the upstream side to the downstream side in the transport direction Fc of the paper Pc. The pressing part 4c and a discharge part (not shown) are installed.

In both the first application unit 29c and the second application unit 59c, the application nozzles 25c and 85c that apply adhesive in a streak pattern along the conveyance direction Fc on the upper surface of the paper Pc are conveyed perpendicularly to the conveyance direction Fc. A plurality are arranged in parallel in the width direction Wc. The first folding portion 39c and the second folding portion 89c sandwich the curved guide plates 44 and 45 that guide the paper Pc so as to be folded back along the transport direction Fc, and the paper Pc that is folded back by the guide plates 44 and 45. Folding rollers 34c and 64c are provided to form folded lines q2c and q1c. The pressing part 4c includes a pressing roller 46c.

When processing the paper Pc, the paper Pc is supplied from the supply unit in the supply process. In FIG. 14, the sheet Pc has the first folded piece P1c located on the right side of the central second folded piece P2c and the third folded piece P3c located on the left side of the second folded piece P2c. In the first adhesive application step, the adhesive is applied in a streaky manner to the upper surface of the central second folded piece P2c from the application nozzle 25c of the first application part 29c. In the first folding step, the left third folded piece P3c is superimposed on the central second folded piece P2c by the guide plate 44 of the first folded portion 39c, and the adhesive application surface is folded inward. Then, the second folding line q2c is formed by being pressed by the pressing folding roller 34c and nipped and conveyed with a conveying belt (not shown) below the folding roller 34c.

In the second adhesive application step, the adhesive is applied in a streak shape along the transport direction Fc to the back surface of the third folded piece P3c that is on the upper side by the application nozzle 85c of the second application part 59c. In the second fold portion 89c, the first fold piece P1c on the right side is overlaid on the third fold piece P3c by the guide plate 45, and is folded with the adhesive-coated surface inside. Then, the first folding line q1c is formed by the folding roller 64c. In the pressing step, the pressing roller 46c is pressed.

Then, a predetermined portion of the paper Pc is cut by a cutting blade such as a cutter (not shown). As a result, the paper Pc, which is a continuous paper, can be easily processed into an inner tri-fold.

(Fifth embodiment)
In the fourth embodiment, the paper Pc, which is a continuous sheet, is folded in an inner trifold, but in the fifth embodiment, it is folded in an outer trifold. FIG. 15 is an embodiment diagram when processing the sheet Pd using the sheet processing apparatus Sc according to the fifth embodiment. Note that the sheet processing apparatus Sc according to the fifth embodiment has the same configuration as the sheet processing apparatus Sc according to the fourth embodiment.

When processing the paper Pd, the paper Pd is supplied from the supply unit in the supply process. In FIG. 15, the sheet Pd has the first folded piece P1d on the left side of the central second folded piece P2d and the third folded piece P3d on the right side. In the first adhesive application step, the range in which the adhesive is applied by the application nozzle 25c of the first application part 29c is the right third fold P3d instead of the center second fold P2c in the fourth embodiment. It has become the surface of. In the first folding step, only the left third folded piece P3c is folded back in the fourth embodiment. However, in the fifth embodiment, both the left first folded piece P1d and the second folded piece P2d are It is folded back by the guide plate 44 of the first folding part 39c. Then, the central second folded piece P2d is overlaid on the third folded piece P3d to which the adhesive is applied. Thereafter, the folded portion is pressed by the folding roller 34c, and is nipped and conveyed to form the second folding line q2d.

In the second adhesive application step, the adhesive is applied to the back surface of the second folded piece P2d by the application nozzle 85c of the second application part 59c. In the second folding part 89c, the first folded piece P1d on the right side is superimposed on the central second folded piece P2d, and the adhesive application surface is folded inward. Then, the first folding line q1d is formed by the folding roller 64c. Then, the folded pieces P1d, P2d, and P3d are pressed by the pressing roller 46c, and a predetermined portion of the paper Pd is cut by a cutting blade (not shown). Thus, it is possible to easily process the outer three folds using the paper Pd which is a continuous paper.

In each of the above embodiments, the sheets P, Pa, Pb, Pc, and Pd are folded in half, folded inwardly, and folded inwardly, but may be folded in other ways, for example, folded inward. In the sheet processing apparatuses Sb and Sc according to the third to fifth embodiments, the adhesive application portions 2b and 2c and the folding portions 3b and 3c are along the conveyance directions Fb and Fc of the sheets Pb, Pc and Pd. Two sets are installed, but three or more sets may be used.

In addition, the adhesive applied in a streak form in the adhesive application sections 2, 2b, and 2c can be applied in a discontinuous broken line shape in addition to the case where the adhesive is continuously applied in a streak form. . In addition, a plurality of application nozzles 25, 25b, 25c, 85b, and 85c are installed in the transport width directions W and Wc of the paper P, Pa, Pb, Pc, and Pd, but may be one. Further, as described above, the position of the application nozzles 25, 25b, 25c, 85b, 85c in the width direction of the paper P can be appropriately changed according to the position where the adhesive is applied. This adjustment can be performed automatically using a spring or manually. Further, the transport unit 22 includes the transport roller 231 that is in rolling contact with the adhesive application surface of the paper P, but may be a transport belt instead of the transport roller 231. Further, although the plurality of conveying rollers 231 are divided and installed in the conveying width direction W of the paper P, they are integrally formed without being divided, and a groove having a predetermined width is formed corresponding to the adhesive application position. It may be formed. As a result, the configuration is such that no adhesive is attached to the transport roller, and such an integrally formed transport roller saves the labor of assembly.

In the first to third embodiments, the folding unit 3 includes the folding trays 30, 31, and 80 in which the leading ends of the sheets P, Pa, and Pb are inserted in a predetermined length in a switchback manner. As in the fifth embodiment, the folding tray may not be provided. In addition, although a plurality of feed rollers that roll over the adhesive application surface of the paper P and feed the paper P to the folding tray are divided in the conveyance width direction W of the paper P, a plurality of feed rollers may be provided instead of a plurality. . In addition, a plurality of guide members 42 and 47 for guiding the adhesive application surface of the folding trays 30, 31, and 80 are divided in the conveyance width direction W of the paper P, but the guide members are not divided. A groove having a predetermined width may be formed corresponding to the application position of the adhesive. As a result, the adhesive does not adhere to the guide member, and such an integrally formed guide member saves assembly work.

Further, the pressing rollers 46 and 46c pressed the paper P, Pa, Pb, Pc, and Pd while conveying the paper P, Pa, Pb, Pc, and Pd in the same direction as the direction of the adhesive applied to the paper P, Pa, Pb, Pc, and Pd. However, it may be pressed while transporting the paper in another direction, for example, perpendicular to the direction of the line-shaped adhesive. Moreover, although the postcard was illustrated as a processed product of paper P, it is not limited to this, For example, you may utilize for other uses, such as a sealed letter, a catalog, an advertising flyer.

2, 2b, 2c Adhesive application part 3, 3b, 3c Folding part 22 Conveying means 231 Conveying rollers 25, 25c, 85b, 85c Coating nozzles 30, 31, 80 Folding trays 33, 34, 34c, 35, 83, 84, 85, 64c Folding rollers 42, 47 Guide member 46 Pressing roller

Claims (4)

Conveying means for conveying the paper, an adhesive application portion for applying an adhesive to the paper conveyed by the conveying means, a folding portion for folding the paper so that the adhesive application surface of the paper is inside, and pressing the folded paper In the paper processing apparatus including the pressing unit, the adhesive application unit includes an application nozzle that applies the adhesive in a streak pattern along the transport direction to the paper transported by the transport unit, and the press unit has a streak shape. It is an adhesive layer formed by spreading the adhesive applied to the sheet, and it has a pressing roller that releasably bonds the folded pieces of the folded paper, and a plurality of application nozzles are installed in the paper transport width direction. The conveying means includes a conveying roller that is brought into rolling contact with the adhesive application surface of the sheet, and the conveying roller is divided and arranged in the conveying width direction of the sheet, and the folding unit sandwiches and conveys the sheet to form a fold line. The folding roller and the leading edge of the paper It has a folding tray that is inserted into the back type for a predetermined length, and a feed roller that rolls in contact with the adhesive application surface of the paper and feeds the paper to the folding tray, and a plurality of feed rollers are installed in the paper conveyance width direction. The transport roller and the feed roller are both installed so as not to overlap the position of the coating nozzle in the transport width direction of the paper, and the pressure roller presses the paper with a predetermined pressing force where the adjacent linear adhesives overlap each other. paper processing apparatus for. The folding part includes a folding roller that sandwiches and conveys the paper to form a folding line, and a folding tray in which the leading end of the paper is inserted in a predetermined length in a switchback manner, and guides the adhesive application surface of the folding tray 2. The sheet processing apparatus according to claim 1, wherein a plurality of the sheet processing units are divided and arranged in the sheet conveyance width direction. The sheet processing apparatus according to claim 1, wherein a plurality of adhesive application sections and folding sections are installed along a sheet conveyance direction. An adhesive application step for applying an adhesive to the paper conveyed by the conveyance means, a folding step for folding the adhesive application surface of the paper inward, and a pressing step for pressing the folded paper with a pressure roller are provided. In the paper processing method, in the adhesive application step, the adhesive is applied in a streak pattern along the paper conveyance direction by the application nozzle, and in the pressing step, the adjacent streak-like adhesives are pushed out so as to overlap each other. A sheet processing method, wherein a folded piece of a folded sheet is adhered in a peelable manner with an adhesive layer formed in the above manner.

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