JP2016147677A - Sheet folding and bonding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet folding and bonding device which does not require a large installation space, and can easily and reliably bond an opening of an adhesive body which is formed in a bag shape by folding a sheet.SOLUTION: A sheet folding and bonding device 100 is provided with: a non-pressing part for forming an opening in an adhesive body by not pressing a part of a peripheral edge of a superposed surface of a folded sheet S with a pressing force of a predetermined value of or more; and a manual sealing path 71 for allowing the adhesive body, in which the opening is formed, to pass, and closing the opening. The manual sealing path 71 allows the adhesive body, in which the opening is formed, to pass through a sheet pressing roller again by manual insertion while omitting folding processing, and can press and seal the opening.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a sheet folding and bonding apparatus.

2. Description of the Related Art There is known a sealing device that folds a sheet having an adhesive applied to the edge in advance and presses the folded sheet with a pressure larger than a predetermined value to bond and seal the overlapping surfaces of the sheets. Patent Document 1 listed below discloses a pressure-bonding mechanism that includes a pair of sheet pressing rollers that sandwich a sheet and press it with a pressure larger than a predetermined value for such a sealing device.

In the pressure-bonding mechanism described in Patent Document 1, a pair of sheet pressing rollers is provided with a large-diameter portion that presses a sheet with a pressing force equal to or greater than a predetermined value, and a small-diameter portion that is formed adjacent to the large-diameter portion and has a small diameter. It has been. Then, the sheet folded in a rectangular shape is nipped and conveyed by the large-diameter portion, so that the three sides of the periphery of the sheet are bonded, and one side of the periphery is aligned with the small-diameter portion and the small-diameter portion is passed. By doing so, it becomes non-adhesive. Thus, the folded sheet can be formed into a bag-like adhesive body in which three sides are bonded and the remaining one side is an opening. An attached material or the like can be inserted into the bag-shaped adhesive body later.

Japanese Patent Laid-Open No. 2003-212218

Examples of a method for closing and sealing an opening after inserting an attachment or the like into a bag-like adhesive include a method of manually sealing with a glue or a stapler. It is also possible to seal automatically using a dedicated sealing device that seals only one side provided with a sealing roller capable of pressing only the opening of the adhesive body and its periphery with a pressing force of a predetermined value or more. is there.

However, manual sealing with glue or stapler is inefficient. Further, when a dedicated sealing device capable of sealing only one side is used, a separate installation space for the sealing device dedicated to one side sealing is required, and a larger installation space is required as a whole.

The present invention solves the above-described problem, and does not require a large installation space, and is a sheet folding and bonding apparatus capable of easily and reliably bonding an opening of a bonded body formed by folding a sheet into a bag shape. For the purpose of provision.

According to the first aspect of the present invention, a sheet is stacked by a folding unit that folds the sheet conveyed by the conveyance unit and a pair of sheet pressing rollers, and an adhesive that is applied in advance to a predetermined portion of the sheet. A pressure bonding portion that forms a bonded body by bonding the peripheral edges of the mating surfaces, and the sheet pressing roller conveys the folded sheet with a pressing force equal to or greater than a predetermined value while conveying the folded sheet. A sheet fold provided with a pressing portion to be pressed and a non-pressing portion for forming an opening in the adhesive body by not pressing a part of the periphery of the overlapping surface of the sheets with a pressing force of a predetermined value or more. In the tatami-bonding apparatus, the operator manually feeds or feeds the sheet again, separately from a series of processing paths for creating the opening adhesive body in which the opening is formed by performing at least the folding and press bonding on the sheet. Via a step, the direct to the pressing portion of the pair of sheet pressing roller, and inserting the created opening adhesive body, characterized in that the opening is provided further manual feed sheet inserting portion capable of sealing.

According to a second aspect of the present invention, in the sheet folding bonding apparatus according to the first aspect, the manual sheet insertion portion is inserted from a manual sheet insertion port for inserting the opening adhesive and the manual sheet insertion port. And a transfer roller and a transfer path for transferring the opening adhesive to the pressing portions of the pair of sheet pressing rollers.

According to a third aspect of the present invention, in the sheet folding and bonding apparatus according to the first or second aspect, the folding portion includes a folding tray having a sheet insertion space into which a sheet is inserted, and the folding tray is configured to insert a manual sheet. The manual sheet insertion portion is provided with a manual sheet insertion port for inserting an opening adhesive body in communication with the sheet insertion space.

According to a fourth aspect of the present invention, in the sheet folding and bonding apparatus according to the third aspect, the folding tray including the manual sheet insertion portion is detachable integrally with the manual sheet together with the manual sheet insertion portion. It is characterized by that.

According to a fifth aspect of the present invention, in the sheet folding and bonding apparatus according to the first aspect, a control unit that controls the drive motor so that at least the pair of sheet pressing rollers can be driven independently of the folding operation. It is characterized by providing.

The invention according to claim 6 is the sheet folding bonding apparatus according to claim 5, wherein the manual sheet insertion portion includes a manual sheet insertion port for inserting the opening adhesive body, and the opening adhesive body inserts the manual sheet. Detection means for detecting insertion into the mouth is provided, and when the control unit receives a detection signal from the detection unit, a drive motor is started to start rotation of the pair of sheet pressing rollers.

According to a seventh aspect of the present invention, in the sheet folding and bonding apparatus according to the fifth or sixth aspect, the control unit includes an opening adhesive body inserted between the pair of sheet pressing rollers from the manual sheet insertion port, and the pair of sheets. A sheet that presses only a predetermined range of the front end portion of the opening adhesive body by forward rotation of the pressing roller, and then pulls back the opening adhesive body to the manual sheet insertion opening by reverse rotation of a pair of sheet pressing rollers. Folding adhesive device.

The invention according to claim 8 is the sheet folding bonding apparatus according to claim 7, wherein the predetermined range of the tip portion of the opening adhesive body is at least a range corresponding to the non-pressing portion in the opening adhesive body. It is characterized by being.

According to a ninth aspect of the present invention, in the sheet folding bonding apparatus according to the seventh or eighth aspect, a predetermined range of the opening adhesive front end can be arbitrarily set by a user.

According to the first aspect of the present invention, a large installation space is not required, and the opening of the adhesive body in which the opening is formed can be easily and reliably bonded by folding and bonding the sheet.

According to the second aspect of the present invention, even if the distance from the manual sheet insertion opening to the pair of sheet pressing rollers is long, the opening adhesive body can be directly transferred between the pair of sheet pressing rollers.

According to the invention described in claim 3, since the folding tray having the sheet insertion space is integrally provided with the manual sheet insertion portion, the sheet conveyance path can be shortened rather than arranging both of them side by side. It is possible to reduce the size.

According to the invention described in claim 4, since the folding tray having the manual sheet inserting portion is integrally detachable together with the manual sheet inserting portion with respect to the sheet folding bonding apparatus main body, the jam processing is performed. It can be done easily.

According to the fifth aspect of the invention, at least the drive of the pair of sheet pressing rollers can be controlled so as to be independent of the folding operation, so that it can be used for an adhesion test, and a separate side seal is provided. Since it is not necessary to prepare a dedicated sealing device, a large installation space is not required.

According to the sixth aspect of the present invention, since the opening adhesive is detected to be inserted into the manual sheet insertion opening and the rotation of the sheet pressing roller is automatically started, the workability is good for the user.

According to the seventh aspect of the present invention, when the opening adhesive having the three sides sealed is passed through the sheet pressing roller again by manual feeding with the folding process omitted, the opening is pressed and sealed. Even if it is easily damaged, the opening is not sufficiently pressed even if it is pressed by the pressing part because it controls to press only the predetermined range of the opening adhesive tip so as to avoid the contents There is no problem of insufficient adhesion or damage to the contents.

According to the eighth aspect of the present invention, when the opening adhesive having the three sides sealed is passed through the sheet pressing roller again by manual feeding while omitting the folding process, and the opening is pressed and sealed, the contents are thick. Even if it is easy to break, it is controlled so as to press only the range corresponding to the non-pressing part of the opening adhesive tip so as to avoid the contents. There are no problems such as insufficient adhesion, insufficient adhesion, or damage to the contents.

According to the ninth aspect of the invention, the predetermined range for pressing the opening adhesive tip can be arbitrarily set by the user depending on the conditions such as the thickness of the contents, so that the quality of the product can be improved. it can.

It is a perspective view which shows one Embodiment of the sheet folding bonding apparatus by this invention. It is a longitudinal cross-sectional view of the said sheet folding bonding apparatus. It is a top view of the said sheet folding bonding apparatus. It is a longitudinal cross-sectional view which shows other embodiment of the said sheet folding bonding apparatus. It is the figure which looked at the side plate of the said sheet folding bonding apparatus, and the 3rd, 4th roller in the arrow H direction of FIG. It is a figure which shows one Embodiment of the sheet | seat processed by the said sheet folding bonding apparatus. It is a perspective view at the time of folding the said sheet | seat. It is a perspective view which shows the adhesive body obtained by adhesion | attachment of the said sheet | seat. It is a figure explaining operation | movement of the said sheet folding bonding apparatus. It is a figure which shows operation | movement of the said sheet folding bonding apparatus. It is a top view which shows other embodiment of the said sheet | seat. It is a perspective view which shows other embodiment of the said adhesive body. It is a perspective view which shows other embodiment of the sheet | seat press roller of the said sheet folding bonding apparatus. It is a figure which shows operation | movement of the said sheet folding bonding apparatus. It is a figure which shows operation | movement of the said sheet folding bonding apparatus. It is a perspective view which shows the said other embodiment of the said sheet folding bonding apparatus. It is a figure which shows embodiment at the time of removing a folding tray from the said sheet folding bonding apparatus.

Hereinafter, an embodiment of a sheet folding and bonding apparatus 100 according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an appearance of a sheet folding and bonding apparatus 100 according to the present embodiment, FIG. 2 is a longitudinal sectional view of the sheet folding and bonding apparatus 100, and FIG. 3 is a diagram of the sheet folding and bonding apparatus 100. It is a top view.

The sheet folding bonding apparatus 100 includes a sheet feeding unit 1, a folding unit 2, a pressing bonding unit 3, and a stacker unit 4. In the sheet folding bonding apparatus 100, a sheet folding bonding path 91 and a manual sealing path 71 are formed. A folding portion 2 and a pressure bonding portion 3 are provided in the middle of the sheet folding bonding path 91. In addition, the manual sealing / sealing path 71 communicates directly with the press bonding part 3 without the folding part 2 interposed therebetween.

The sheet feeding unit 1 includes a sheet feeding table 11, a width guide 14, a sheet feeding roller 12, and a separating member 13. A sheet S is placed on the paper feed tray 11. The paper feed table 11 is centered on a swing shaft 15 provided at a position about one third of the length of the paper feed table 11 from the upstream end in the conveyance direction F by paper feed. It is pivotally supported in the direction shown. One end of an arm 19 shown in FIG. 2 is fixed to the swing shaft 15 on the outer side of one side plate 9 shown on the left side in FIG. 3 of the pair of side plates 9 and 10 constituting the apparatus body 7. The other end of the arm 19 is connected to the lower end of a spring as the biasing means 17. The upper end portion of the urging means 17 is fixed to the upper portion of the side plate 9 in front of the swing shaft 15, and the downstream end portion of the paper feed table 11 is urged upward from this, It is brought into pressure contact with the paper feed roller 12 installed above the downstream end. The sheet S placed on the sheet feed table 11 is pressed against the sheet feed roller 12 by the urging force of the urging means 17.

The width guide 14 is provided to come into contact with both edges in the width direction W of the sheet S placed on the sheet feed table 11 and determine the position of the sheet S in the width direction W. The width guide 14 is manually movable in the width direction W while being guided by the guide groove 16. The width guide 14 is adjusted to a predetermined position according to the width direction W length of the sheet S, and according to the bonding state of the adhesive body E obtained by folding by the folding portion 2 and bonding processing by the pressure bonding portion 3. Aligned to the desired position. As another means, the sheet feeding table 11 itself may be moved in the width direction W of the sheet S without moving the width guide 14.

The paper feed roller 12 is disposed in the vicinity of the downstream end of the paper feed tray 11 and the upper position of the separating member 13. As shown in FIGS. 1 and 3, the paper feed roller 12 is constituted by a single rubber roller 121 installed at the center in the width direction W of the apparatus main body 7. Resin guide rollers 122 are installed on both the left and right sides of the rubber roller 121 with a predetermined distance therebetween. The rubber roller 121 and the guide roller 122 are fixed to one rotating shaft 18 that is installed between the pair of side plates 9 and 10. The rotating shaft 18 is connected to the motor 36 via an electromagnetic clutch (not shown) and a coupling mechanism (not shown). The electromagnetic clutch is turned on and off by an electromagnetic clutch controller (not shown). When the motor 36 is driven and the electromagnetic clutch is on (contacted), the rotating shaft 18 is connected to the connecting mechanism and is rotated, whereby the rubber roller 121 and the guide roller 122 are rotated. Conversely, when the electromagnetic clutch is off (released), the rotating shaft 18 is not connected to the connecting mechanism, the rubber roller 121 and the guide roller 122 do not rotate, and paper feeding is not performed.

The separating member 13 is installed facing the lower position of the rubber roller 121 through the sheet S conveyance surface. When the sheet feeding roller 12 sends the uppermost sheet S out of the sheets S on the sheet feeding table 11 one by one to the downstream side, the separating member 13 is fed in a state where the sheets S are overlapped. Sometimes the lower sheet S comes into contact with the sheet S so that the lower sheet S is not fed out.

The folding unit 2 folds the conveyed sheet S. The folding unit 2 includes first and second folding trays 27 and 28 and first to fourth four rollers 21, 22, 23, and 24 as folding rollers. As shown in FIG. 2, the first folding tray 27 protrudes from the conveyance path of the sheet S slightly upward from the horizontal direction continuing from the paper feeding unit 1 so as to protrude forward and upward. The second folding tray 28 is installed to be inclined rearward and downward from the conveyance path of the sheet S extending substantially downward in the vertical direction from the nip portion 32 of the second and third rollers 22 and 23.

The first fold tray 27 and the second fold tray 28 are each provided with a pair of flat plate-like members 38 arranged to face each other with a predetermined amount apart. A sheet insertion space 39 into which the sheet S is inserted is formed between the pair of flat plate members 38. The sheet insertion space 39 is provided for inserting the sheet S while inclining the sheet S by a predetermined angle with respect to the conveying direction of the sheet S by the first and second rollers 21 and 22 and the second and third rollers 22 and 23. . In the first fold tray 27 and the second fold tray 28, the abutting member 64 with which the leading edge of the sheet S inserted into the sheet insertion space 39 abuts is freely changeable in the insertion direction of the sheet S of the flat plate member 38. Each is provided.

Further, the opening 62 formed at the lower end of the first folding tray 27 is opened toward a space surrounded by the first, second, and third rollers 21, 22, and 23. The opening 63 formed at the upper end of the second folding tray 28 is opened toward a space surrounded by the second, third, and fourth rollers 22, 23, and 24.

The first to fourth rollers 21 to 24 constitute a conveyance unit that conveys the sheet S. The first to fourth rollers 21 to 24 are installed between the pair of side plates 9 and 10, and are rotatably supported by the side plates 9 and 10. In addition, the first to fourth rollers 21 to 24 are adjacent to each other to form nip portions 31, 32, and 33, respectively. The third and fourth rollers 23 and 24 are formed larger in diameter than the first and second rollers 21 and 22. The first to fourth rollers 21 to 24 are connected to the motor 36 through an interlocking mechanism, and are rotated by driving the motor 36.

The folding unit 2 includes a second folding tray 28 having a sheet insertion space 39 into which the sheet S is inserted. The second folding tray 28 includes a manual sheet insertion unit 70, and the manual sheet insertion unit 70 includes: A manual sheet insertion port 72 for inserting the opening adhesive is provided in communication with the sheet insertion space 39. The sheet inserted from the manual sheet insertion port 72 is configured to be introduced between the pair of sheet pressing rollers 23 and 24 through the sheet insertion space 39. In addition, the manual sheet insertion portion 70 is provided with a guide member 73 on the second folding tray 28 for introducing the inserted sheet S into the sheet insertion space 39.
When the jam occurs, as shown in FIG. 16, the second folding tray 28 is detachable integrally with the manual sheet insertion portion 70 with respect to the apparatus main body 7, so that it is easy for the user. Can be jammed. A broken line portion in FIG. 16 shows a state in which the second folding tray 28 is integrally removed. According to the above configuration, since the second folding tray 28 having the sheet insertion space 39 is integrally provided with the manual sheet insertion portion 70, the sheet conveyance path can be shortened compared to the case where both are installed side by side. It is possible to reduce the size. Note that the term “integrally attachable / detachable” may be constituted by separate parts, and may be a single unit by screws or the like.

Further, the manual sheet insertion portion 70 is provided with a detecting means 75 for detecting that a sheet has been inserted. For example, the detecting means 75 includes an optical sensor having a light emitting portion and a light receiving portion arranged vertically so as to block the manual sealing path 71 as shown in FIG. 2, and the guide member 73 and the pair of flat plate members 38 are arranged. The presence / absence of a sheet can be recognized by detecting the transmission / shielding state of light transmitted through the aperture.

The press bonding unit 3 presses the sheet S and adheres the peripheral edge of the overlapping surface of the sheet S with an adhesive G applied in advance to a predetermined portion of the sheet S to form an adhesive body E. The pressure bonding unit 3 includes a pair of sheet pressing rollers. The sheet pressing roller is also configured by the third and fourth rollers 23 and 24 constituting the folding roller of the folding unit 2.

The third and fourth rollers 23 and 24 press the sheet S with a pressing force equal to or greater than a predetermined value, and adhere the peripheral edge of the overlapping surface of the sheet S with an adhesive G applied in advance to a predetermined portion of the sheet S. The third and fourth rollers 23 and 24 are formed to have a larger diameter than the first and second rollers 21 and 22, so that the third and fourth rollers 23 and 24 can withstand a pressure greater than a predetermined value when the sheet S is pressed. . Then, the third and fourth rollers 23 and 24 as sheet pressing rollers simultaneously perform the final folding of the sheet S and the bonding of the sheet S folded by pressing. The third and fourth rollers 23 and 24 are preferably made of metal in order to generate a sufficient pressing force.

The third and fourth rollers 23 and 24 as sheet pressing rollers include both a pressing portion 54 and a non-pressing portion 55 (see FIG. 5). The pressing unit 54 presses the overlapping surface of the sheets S with a pressing force equal to or greater than a predetermined value while conveying the sheets S. And the non-pressing part 55 forms the opening part 59 in the adhesive body E by not pressing a part of the periphery of the overlapping surface of the sheet S with a pressing force of a predetermined value or more. The adhesive E in which the opening 59 is formed will be referred to as an opening adhesive.

FIG. 5 is a view of the side plates 9, 10, the third and fourth rollers 23, 24 as viewed from the front, that is, in the direction of arrow H in FIG. 1. In FIG. 5, the pressing portion 54 occupies most of the third and fourth rollers 23 and 24 as a pair of sheet pressing rollers, and is provided in the axial direction W over a predetermined length L2. The non-pressing portion 55 is formed adjacent to the pressing portion 54 and is provided on the left side of the third and fourth rollers 23 and 24 in the width direction W over a predetermined length L3.

The non-pressing portion 55 is formed such that the diameter D2 is slightly smaller than the diameter D1 of the pressing portion 54. Thereby, in the non-pressing part 55, the outer peripheral surfaces of the third and fourth rollers 23 and 24 are not in contact with each other and are not in contact with each other. When the sheet S is nipped and conveyed between the third and fourth rollers 23 and 24, the portion of the sheet S that passes through the non-pressing portion 55 is not pressed with a pressing force equal to or greater than a predetermined value. A part of the adhesive application region G is not bonded.

The size of the gap J in the non-pressing portion 55 of the third and fourth rollers 23 and 24 is a value that does not press the sheet S that is folded and passes between the two sheet pressing rollers with a pressing force equal to or greater than a predetermined value. The thickness is preferably about 0.5 mm to 2.5 mm, and more preferably 1.0 mm to 2.0 mm.

Further, the length L3 in the width direction W (axial direction) of the non-pressing portion 55 is applied in advance to the periphery of the sheet S, and adhesion at the application position of the adhesive G that becomes a portion that forms the opening 59 of the adhesive body E. The length can be about 2 to 3 times the distance K longer than the distance K from the end of the body E, for example, about 15 mm to 30 mm. On the other hand, the width direction length L2 of the pressing portion 54 is set to be longer than the width direction length of the sheet S. The axial length L1 of the entire sheet pressing roller including the non-pressing portion 55 and the pressing portion 54 is set to be longer than the lateral width of the sheet S.

The stacker unit 4 includes an impeller 42, a horizontal guide plate 45, a vertical guide plate 43, and a receiving plate 44. As shown in FIG. 3, two impellers 42 are installed at a predetermined distance in the width direction W. The two impellers 42 are fixed to a rotating shaft 46 that is rotatably supported by the pair of side plates 9 and 10. The impeller 42 is provided with a large number of blades 421 on the outer peripheral surface, and the blades 421 are arranged at equal intervals in the circumferential direction and extend radially outward in a curved shape. The lateral guide plate 45 is installed between the two impellers 42 and between the impeller 42 and the left and right side plates 9 and 10. The horizontal guide plate 45 is horizontally installed at a height position substantially the same as or slightly lower than the nip portion 33 of the third and fourth rollers 23 and 24. The vertical guide plate 43 is erected below the impeller 42. The receiving plate 44 is disposed so as to be inclined forward and forward from the lower end of the vertical guide plate 43.

The conveyance path of the sheet S from the paper feeding unit 1 to the stacker unit 4 via the folding unit 2 and the pressure bonding unit 3 constitutes a sheet folding bonding channel 91.

Next, the operation of the sheet folding bonding apparatus 100 according to the present embodiment will be described. Adhesives G1 to G6 are preliminarily applied to predetermined positions on the sheet S that is processed to be folded and bonded by the sheet folding and bonding apparatus 100. FIGS. 6A and 6B are diagrams showing the front and back surfaces of the sheet S in which adhesives G1 to G6 are previously applied to such predetermined locations, and FIG. 7 is in the middle of folding the sheet S shown in FIG. It is a perspective view which shows a state.

As shown in FIGS. 6A and 6B, an adhesive application region G is formed on the periphery of the overlapping surface of the sheet S. As shown in FIG. 7, the adhesive application region G is formed at a position where the edges of the overlapping surface of the sheet S are bonded to each other when the sheet S is folded. More specifically, streaks are formed along the conveyance direction F of the sheet S at both end positions in the width direction W of the inner side surfaces of the first and second folded pieces P1 and P2 on the surface of the sheet S1 shown in FIG. Adhesives G1 and G2 are applied. Further, the adhesive G3 is applied in a streak shape along the width direction W to the front end portion of the sheet S of the first folded piece P1 in the conveying direction F and the rear end portion of the sheet S of the second folded piece P2 in the conveying direction F. Yes. Also, as shown in FIG. 6 (b), on the peripheral edge formed by the both end positions in the width direction W of the overlapping surface of the second folded piece P2 and the third folded piece P3 on the back surface of the sheet S2 and the front and rear end portions in the conveying direction F Adhesive application areas G4, G5 and G6 are formed.

Then, as shown in FIG. 7, the sheet S is folded three times at the folding portion 2 so that the application surfaces of the adhesives G <b> 1 to G <b> 6 are inside. That is, the sheet S is divided into first, second, and third folded pieces P1, P2, and P3 by two folding lines q1 and q2 that are parallel to each other. The third fold piece P3 is folded above the second fold piece P2 by the second fold line q2, and the first fold piece P1 is folded below the second fold piece P2 by the first fold line q1. .

Then, in the folded state as shown in FIG. 7, the adhesives G4 to G6 on the upper surface of the second fold piece P2 and the adhesives G4 to G6 on the lower surface of the third fold piece P3 facing this are bonded on three sides. The Further, the adhesives G1 to G3 on the lower surface of the second fold piece P2 and the adhesives G1 to G3 on the upper surface of the first fold piece P1 opposite to the adhesives G1 to G3 are bonded on three sides.

The adhesives G1 to G6 have low adhesiveness used for a crimping postcard or the like, and adhere the sheet S only when pressed with a pressing force equal to or greater than a predetermined value. Therefore, the upper and lower sheets S are not bonded to each other by the adhesives G1 to G6 in a state where the sheets S are stacked on the sheet feeding table 11. On the other hand, when the pressing portion 54 of the sheet pressing roller is pressed with a pressing force of a predetermined value or more, the overlapping surface of the sheets S to be folded is bonded. Furthermore, when most of the sheet S passes through the pressing portion 54 and part of the periphery of the sheet S passes through the non-pressing portion 55 of the sheet pressing roller, The sheet S is not pressed with a pressing force of a predetermined value or more and is not bonded.

Therefore, the sheet folding bonding apparatus 100 according to the present embodiment sets the conveyance position of the sheet S in the width direction W to a position where the entire sheet S passes through the pressing portion 54 or a part of the periphery of the sheet S. The adhesive E obtained by folding and adhering treatment is coated with adhesives G1 to G6 out of the rectangular peripheral edge as shown in FIG. By adhering all three sides of the overlapping surface, an adhesive body E1 in which all four sides of the adhesive body E are closed is formed, or as shown in FIG. It is possible to select whether only the two sides of the superposed surface to which G6 is applied are bonded and the opening 59 is provided with the other side to which the remaining adhesives G2 and G5 are applied non-bonded.

The adjustment of the transport position of the sheet S in the width direction W can be manually performed by the user using the width guide 14. FIG. 9 is a plan view for explaining the positional relationship between the width guide 14 and the third roller 23 as the sheet pressing roller. When the user wants to bond all the peripheral edges of the overlapping surface of the sheet S and obtain an adhesive body E1 in which all four rectangular peripheral edges are bonded as shown in FIG. 8A, the entire sheet S3 is pressed. The width guide 14 is aligned with the position indicated by the solid line so as to pass through the portion 54.

The non-pressing portion 55 shown at the right end portion of the sheet pressing roller in FIG. 9 has a diameter D2 that is smaller than the diameter D1 of the pressing portion 54 over the length L3. Further, the length L2 in the width direction W of the pressing portion 54 of the third and fourth rollers 23 and 24 is set to be longer than the lateral width LS of the sheet S. Therefore, when the entire sheet S3 is at the position indicated by the solid line passing through the pressing portion 54, the entire lateral width LS is accommodated within the length L2 of the pressing portion 54 of the sheet pressing roller. Therefore, when the folded sheet S3 passes through the nip portion 33 of the rotating third and fourth rollers 23 and 24, the third and fourth rollers 23 and 24 are applied to all the adhesives G1 to G6 applied on the sheet S3. Since the pressing force of 24 is applied, the periphery of the adhesive body E is bonded to the three sides of the overlapping surface, and all four sides of the rectangular adhesive body E are closed.

On the other hand, like the adhesive body E2 shown in FIG. 8 (b), a region to which the adhesives G1, G3, G4, and G6 are applied is bonded to one side of the rectangular peripheral edge, and one side to which the adhesives G2 and G5 are applied When the user wants to obtain a bag-like adhesive body E2 in which the opening 59 is formed without adhering the adhesive, the user can make most of the sheet S excluding the region where the adhesives G2 and G5 are applied to the pressing portion 54. The width guide 14 is positioned at a position indicated by a broken line shifted by a predetermined amount to the right side in FIG. 9 so that the region to which the adhesives G2 and G5 of the sheet S are applied passes through the non-pressing portion 55.

As a result, the area where the adhesives G1, G3, G4, and G6 on the overlapping surface of the sheet S4 are applied is applied with a pressing force of a predetermined value or more by the pressing portion 54, but the adhesives G2 and G5 are bonded. No pressing force exceeding a predetermined value is applied to the coating area. Therefore, in this region, since the overlapping surface of the sheet S4 is not bonded even if the adhesives G2 and G5 are applied in advance, a bag-shaped adhesive body (opening adhesive body) in which the three sides of the adhesive body E are bonded. E2 is produced.

Thus, after the user manually adjusts the width guide 14 to an appropriate position, the user places a plurality of sheets S between the pair of width guides 14. The plurality of stacked sheets S are pressed against the paper feed roller 12 by the urging force of the urging means 17. When the user presses the start button on the operation panel 6, the motor 36 is driven. The first to fourth rollers 21 to 24 and the impeller 42 are rotated by driving the motor 36. A plurality of the motors 36 may be provided so that they can be controlled separately. Further, when the clutch controller is turning on the electromagnetic clutch, the rotating shaft 18 is rotated, and the sheet feeding roller 12 and the guide roller 122 are rotated.

The uppermost sheet S among the plurality of sheets S on the sheet feeding table 11 is sent to the downstream side by the rotating sheet feeding roller 12 and the guide roller 122, and is separated from other sheets S by the lower separating member 13 and folded. Sent to part 2.

In the folding part 2, for example, by operating as shown in FIGS. 10A to 10C, the sheet S can be folded into the outer tri-fold state of FIG.
In the following description with reference to FIGS. 10A to 10C, the manual sheet insertion portion 70 in the second folding tray 28 is omitted from the drawing.

As shown in FIG. 10A, the unfolded sheet S sent from the paper feeding unit 1 is first sent to the nip portion 31 between the first and second rollers 21 and 22, and further on the upper side. The sheet is fed into the sheet insertion space 39 of the first tray 27. The position of the abutting member 64 of the first folding tray 27 is set to a position corresponding to the length of the first folding piece P1. Accordingly, after the leading edge of the sheet S comes into contact with the abutting member 64 of the first folding tray 27, when the sheet S is further fed by the first and second rollers 21 and 22, the sheet S is moved to the first folding line q1. The fold line q1 is sandwiched by the nip portion 32 between the second roller 22 and the third roller 23, and enters the sheet insertion space 39 of the lower second folding tray 28 as shown in FIG. It is sent.

Since the abutting member 64 of the lower second folding tray 28 is set at a position corresponding to the length of the first folding piece P1, the first fold line q1 portion abuts against the abutting member 64. Thereafter, when the sheet is further fed by the second and third rollers 22 and 23, this time, it is folded at the second fold line q2 portion, and the fold line q2 portion is formed at the nip portion 33 of the third and fourth rollers 23 and 24. As shown in FIG. 10 (c), the sheet is nipped and conveyed to the stacker unit 4 in an outer tri-fold state. In other words, when folded at the first and second folding lines q1 and q2, respectively, the outer three-fold state is obtained and supplied to the stacker unit 4.

When sandwiched by the nip portion 33 between the third and fourth rollers 23 and 24, the sheet S is pressed by the third and fourth rollers 23 and 24 with a pressing force equal to or greater than a predetermined value. Thus, the sheet S is subjected to both folding and bonding processes at once. Then, the overlapping surfaces of the sheets S are bonded to each other by the adhesives G1 to G6 previously applied to the periphery of the sheet S.

At that time, when the entire sheet S passing between the third and fourth rollers 23 and 24 is nipped and conveyed by the pressing portion 54 in the width direction W, the rectangular peripheral four sides to which the adhesives G1 to G6 are applied. Are pressed with a pressing force equal to or greater than a predetermined value to obtain a bonded E1. On the other hand, when a part of the periphery of the sheet S passes through the non-pressing portion 55, the three sides of the rectangular periphery are pressed and bonded with a pressing force of a predetermined value or more, and the opening 59 is formed on the remaining one side. Adhesive E2 can be obtained.

The bonded bodies E1 and E2 that have passed through the third and fourth rollers 23 and 24 and have been folded and bonded are guided by the lateral guide plate 45 and inserted between the blades 421 one by one or several. Then, the upper and lower sides of the adhesive bodies E1 and E2 are reversed by the rotating impeller 42, fed forward, and sequentially stacked on the receiving plate 44.

In a bag-like adhesive body (opening adhesive body) E2 in which an opening 59 is formed at a part of the periphery, contents such as attachments are inserted by the user. In order to close the opening 59, the user performs a sealing process by the manual sealing path 71.

Next, the sealing process by the manual sealing path 71 will be described.
(First embodiment)
In FIG. 2, the present sheet folding and bonding apparatus 100 includes a control unit that controls a driving motor so that the driving of the pair of sheet pressing rollers can be performed independently of the folding operation. When the opening adhesive is inserted into the manual sheet insertion opening 72 and the detecting means 75 detects the opening adhesive (see FIG. 14A), the pair of sheet pressing rollers 23 and 24 and the impeller 42 start rotating.

The manual sheet insertion portion 70 in the second folding tray 28 is configured to communicate with the sheet insertion space 39 at the slit portion 74, and the sheet inserted from the manual sheet insertion opening 72 is the sheet insertion space. It is introduced between the pair of sheet pressing rollers 39. (See FIG. 14B) After that, the opening adhesive is pressed between the pair of sheet pressing rollers 23 and 24 by pressing the opening 59 with a pressing force of a predetermined value or more by the pressing portion 54 of the sheet pressing roller. The opening 59 is closed by the adhesives G2 and G4 applied to the overlapping surface of the opening 59.

The opening bonded body that has passed between the pair of sheet pressing rollers 23 and 24 and has been subjected to the bonding process is guided by the lateral guide plate 45 and is inserted between the blades 421 one by one or several sheets. Then, it is sent forward by the rotating impeller 42 and sequentially stacked on the receiving plate 44.

According to the above configuration, since both the sheet folding adhesion path 91 provided with the folding part 2 and the pressure bonding part 3 and the manual sealing path 71 are provided, the opening part 59 of the opening adhesive body can be easily and reliably adhered. Thus, the sheet S can be folded and bonded efficiently. The sheet folding bonding apparatus 100 is provided with two sealing apparatuses: a sealing apparatus for creating the bag-like adhesive body E2 and a dedicated sealing apparatus capable of sealing only one side where the opening 59 is formed. Compared to the case, it can be installed in a smaller space.

Furthermore, according to the above-described configuration, it is possible to control at least the drive of the pair of sheet pressing rollers independently of the folding operation, so that it can be used for an adhesion test, and is separately dedicated to one side sealing. Since it is not necessary to prepare a sealing device, a large installation space is not required. Moreover, since it detects that the opening adhesive body was inserted in the manual sheet insertion port, and the rotation of the sheet pressing roller is automatically started, the workability for the user is good.

Next, another form of sealing processing by the manual sealing path 71 will be described.
(Second embodiment)
In FIG. 2, the sheet folding and bonding apparatus 100 includes a control unit that controls a drive motor so that at least the pair of sheet pressing rollers 23 and 24 can be driven independently of the folding operation. When the opening adhesive is manually inserted into the manual sheet insertion opening 72 and the detection means 75 detects the opening adhesive (see FIG. 14A), the pair of sheet pressing rollers 23 and 24 start rotating.
In this case, the opening adhesive is inserted with the opening 59 at the tip side.
The sheet inserted from the manual sheet insertion port 72 is introduced between the pair of sheet pressing rollers 23 and 24 through the sheet insertion space 39 and further conveyed downstream beyond the nip portion 33 of the sheet pressing roller. Is done. (See FIG. 14B)

Near the downstream side of the nip portion of the sheet pressing roller, an optical system sensor (not shown) is installed as a detecting means for detecting the leading edge of the sheet, and further, on the rotating shafts of the pair of sheet pressing rollers 23 and 24. Is equipped with an encoder linked to its rotation. After the detection means detects the leading edge of the sheet, pulse counting of the encoder is started, and the sheet pressing roller is rotated forward (direction r1 in FIG. 14B) until a predetermined number of counts are reached, so Only the range is pressed, and then the opening adhesive after the sealing process is controlled to be pulled back to the manual sheet insertion port 72 by reverse rotation of the pair of sheet pressing rollers (FIG. 14B, r2 direction).

Note that the predetermined range of the front end portion of the opening adhesive body is substantially the same as the length L3 in the width direction of the non-pressing portion 55 (see FIG. 9). The length slightly longer than the distance K (see FIG. 6) from the end of the adhesive E at the application position of the adhesives G2 and G5 that will form the part 59, for example, about 15 mm to 30 mm. .

As described above, the opening 59 is pressed with a pressing force of a predetermined value or more by the pressing portion 54 of the sheet pressing roller between the pair of sheet pressing rollers 23 and 24 only in a predetermined range of the opening adhesive body tip. Thus, the opening 59 can be closed by the adhesives G2 and G5 applied to the overlapping surface of the opening 59.

According to the above configuration, when the opening adhesive body with the three sides sealed is passed through the sheet pressing roller again by manual feeding with the folding process omitted, and the opening 59 is pressed and sealed, the contents are thick or damaged. Even if it is easy to do, it controls to press only the range corresponding to the non-pressing part of the opening adhesive body tip so as to avoid the contents. There is no problem that the adhesive is not pressed, the adhesion is insufficient, or the contents are damaged.

The predetermined range of the opening adhesive tip can be arbitrarily set by the user. In this case, the sheet folding and bonding apparatus 100 may include an operation panel 6 so that the user can input an arbitrary numerical value using the operation panel 6.

According to the said structure, since the predetermined range which presses an opening adhesive body front-end | tip part can be arbitrarily set by users according to conditions, such as the thickness of the content, the quality of a deliverable can be made favorable.

In the second embodiment, the same control can be performed without installing the detection means 75. For example, the user inserts the opening adhesive body from the manual sheet insertion opening 72 until it hits the nip portion of the sheet pressing rollers 23 and 24, and in that state, presses the start switch for starting the sealing process from the operation panel 6. In the same manner as described above, only a predetermined range of the tip of the opening adhesive body is pressed (forward rotation of the pair of sheet pressing rollers), and then the sealing process is completed by reverse rotation of the pair of sheet pressing rollers. The body may be controlled to be pulled back to the manual sheet insertion opening.

Next, other forms of the manual sheet insertion portion 70 in the second folding tray 28 will be described.
(Other examples)
For the sealing process control method described in the first embodiment and the second embodiment,
The configuration of the manual sheet insertion portion 70 in the second folding tray 28 has been described using the form shown in FIG. 2, but the distance between the manual sheet insertion port 72 and the pair of sheet pressing rollers is long by design, In the case where the user cannot manually insert the sheet directly between the pair of sheet pressing rollers, the configuration shown in FIG. 4 may be used instead.

For example, as shown in FIG. 15, the manual sheet insertion portion 70 </ b> A includes a manual tray 310 and a width guide 311, and an opening adhesive inserted through the manual sheet insertion port 72 is disposed between the pair of sheet pressing rollers 23 and 24. A transfer roller 76 and a transfer path 77 are provided. The width guide 311 is provided to contact the both ends of the opening adhesive body in the width direction placed on the manual feed tray 310 and determine the position in the width direction. The width guide 311 is manually movable in the width direction while being guided by the guide groove 312. In addition to the above-described configuration, a paper feeding roller may be further provided on the downstream side of the manual feed tray 310 so that a plurality of stacked adhesives are automatically fed.

The transfer path 77 in the manual sheet insertion portion 70 is configured to communicate with the sheet insertion space 39 in the second folding tray 28 by a slit portion 74 as a manual sealing path 71. In addition, the manual sheet insertion portion 70 is provided with a guide member 78 on the second folding tray 28 for introducing the inserted sheet into the sheet insertion space 39.

Further, the manual sheet insertion portion 70 is provided with a detection means 75 for detecting that a sheet has been inserted on the upstream side of the transfer roller. For example, the detection means 75 includes optical sensors having a light emitting portion and a light receiving portion arranged vertically so as to block the conveyance path as shown in FIG. 4, and the guide member 73 and the pair of flat plate members 38 are opened. The presence / absence of the sheet can be recognized by detecting the transmission / shielding state of light transmitted through the section.

In the configuration shown in FIG. 2, the user manually inserts the opening adhesive body between the pair of sheet pressing rollers 23 and 24, but in the configuration shown in FIG. 4, the user The opening adhesive is manually inserted to the transfer roller 76, and then the transfer roller 76 transfers the opening adhesive to the space between the pair of sheet pressing rollers 23 and 24, and delivers the opening adhesive. When the user manually inserts the opening adhesive body into the manual sheet insertion opening 72 and the detecting means 75 detects the opening adhesive body, the transfer roller 76 and the pair of sheet pressing rollers 23 and 24 start to rotate. To be controlled.
Alternatively, a detection unit (not shown) is further provided on the downstream side of the transfer roller, and when the user manually inserts the opening adhesive body into the manual sheet insertion port 72 and the detection unit 75 detects the opening adhesive body, Only the transfer roller 76 may be rotated, and the pair of sheet pressing rollers 23 and 24 may be controlled to start rotating after the detection means (not shown) detects the opening adhesive.

After the transfer roller 76 transfers the opening adhesive to the pair of sheet pressing rollers 23 and 24 and delivers the opening adhesive, the same control as in the first and second embodiments is performed. Therefore, the description about it is abbreviate | omitted here.

According to the above configuration, the opening adhesive can be directly transferred between the pair of sheet pressing rollers by the transfer roller 76 even if the distance from the manual sheet insertion opening to the pair of sheet pressing rollers is long.

In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the meaning of invention, The combination of a modification is also contained in this invention. Hereinafter, modifications of the embodiment will be described. In the above-described embodiment, the second folding tray 28 is configured integrally with the manual sheet insertion portion 70. However, the manual sheet insertion portion 70 is referred to as the second folding tray 28 as the manual sealing path 71. Alternatively, a sheet inserted from the manual sheet insertion opening 72 may be directly introduced between the pair of sheet pressing rollers 23 and 24 without the second folding tray 28 interposed therebetween.

In addition, in the present invention, the user manually inserts the sheet into the manual sheet insertion opening 72 not only to the opening bonded body folded by the sheet folding bonding apparatus 100, but separately folded by the user manually. The sheet may be inserted into the manual sheet insertion port 72 of the sheet folding bonding apparatus 100 and pressed.

In the above-described embodiment, the sheet S is folded into the Z shape and is folded into the Z-shaped adhesives E1 and E2. However, other folding methods such as the C-shape are also possible. Well, it may be folded in half into a V shape. Thus, when changing to another folding method, the position of the abutting member of the first and second folding trays is adjusted, or the tray is replaced with another tray such as one having a different sheet insertion space length.

Further, the non-pressing portion 55 is provided at one end of the third and fourth rollers as the sheet pressing roller, but may be provided at both ends in the width direction of the sheet pressing roller, from the center in a predetermined amount from the width direction end. Other locations such as a position may be used.

In the above embodiment, one of the four sides of the rectangular adhesive body is an opening, but if the contents such as attachments can be inserted into the bag-like adhesive, the opening is one side. It is good also considering a part instead of all sides, such as half or 80%, as an opening part. FIG. 12 shows a case where half of one side of the four sides of the adhesive E3 is the opening 59a. In order to form a part of one side of such a rectangular periphery as the opening 59a, for example, a sheet pressing roller 83 shown in FIG. 13 can be used. In the figure, a non-pressing portion 55 a is provided at the left end portion of the upper roller 83 a of the pair of sheet pressing rollers 83. The non-pressing portion 55a is constituted by a portion in which about half of the right side of the peripheral surface of the left end portion of the roller 83a is cut away.

The non-pressing portion 55a in FIG. 13 is not in contact with the opposed lower roller 83b because a part of the peripheral surface of the upper roller 83a is cut away. Therefore, the non-pressing portion 55a does not press a part of one side of the sheet periphery with the roller 83b with a pressing force equal to or greater than a predetermined value, so that the non-pressing part 55a opens in a part of one side of the rectangular adhesive body. Forming part.

The remaining uncut portion of the left end portion of the roller 83a is configured as a pressing portion 54a capable of pressing the sheet with a pressure equal to or higher than a predetermined value. By pressing the sheet while being conveyed by the sheet pressing roller 83, both the bonding portion 60 and the opening 59a can be formed on one side of the periphery of the bonding body.

E, E1, E2, E3 Adhesive G Adhesive S, S1, S2, S3, S4, S5 Sheet 2 Folded part 3 Pressed adhesive part 10 Side plate 54, 54a Pressed part 55, 55a Non-pressed part 59 Opening part 70 Manual feed sheet Insertion section 71 Manual sealing path 72 Manual sheet insertion port 73 Guide member 74 Slit 75 Detection means 91 Sheet folding adhesion path 100 Sheet folding adhesion apparatus 231 Rotating shaft

Claims (9)

A folding part that folds the sheet conveyed by the conveying part and a pair of sheet pressing rollers press the sheet, and an adhesive pre-applied to a predetermined portion of the sheet adheres the periphery of the overlapping surface of the sheets. A pressure bonding portion that forms an adhesive body, and the sheet pressing roller includes a pressing portion that presses the overlapping surface of the sheets with a pressing force equal to or greater than a predetermined value while conveying the folded sheet, In the sheet folding bonding apparatus provided with a non-pressing part for forming an opening in the bonded body by not pressing a part of the periphery of the overlapping surface with a pressing force of a predetermined value or more,
Apart from a series of processing paths for creating an opening adhesive body in which the opening is formed by performing at least the folding and pressing adhesion to the sheet, the operator again through manual feed or paper feeding means, A sheet folding and bonding apparatus, further comprising a manual sheet insertion portion that can directly insert the created opening adhesive body into the pressing portions of the pair of sheet pressing rollers and seal the opening. The manual sheet insertion portion is configured to transfer a manual sheet insertion port for inserting the opening adhesive body and the opening adhesive body inserted from the manual sheet insertion port to the pressing portions of the pair of sheet pressing rollers. The sheet folding bonding apparatus according to claim 1, further comprising a transfer roller and a transfer path. The folding section includes a folding tray having a sheet insertion space into which a sheet is inserted, the folding tray includes a manual sheet insertion section, and the manual sheet insertion section inserts a manual sheet for inserting an opening adhesive. The sheet folding bonding apparatus according to claim 1 or 2, wherein a mouth is provided in communication with the sheet insertion space. The sheet folding and bonding apparatus according to claim 3, wherein the folding tray including the manual sheet insertion unit is detachable integrally with the apparatus main body together with the manual sheet insertion unit. The sheet folding bonding apparatus according to claim 1, further comprising a control unit that controls a drive motor so that at least the pair of sheet pressing rollers can be driven independently of the folding operation. The manual sheet insertion unit includes a manual sheet insertion port for inserting the opening adhesive and a detection unit that detects that the opening adhesive is inserted into the manual sheet insertion port, and the control unit detects the detection 6. The sheet folding and bonding apparatus according to claim 5, wherein upon receiving the detection signal of the portion, the drive motor is started to start the rotation of the pair of sheet pressing rollers. The control unit presses the opening adhesive body inserted between the pair of sheet pressing rollers from the manual sheet insertion port only by a predetermined range of the opening adhesive body front end portion by forward rotation of the pair of sheet pressing rollers, and thereafter The sheet folding bonding apparatus according to claim 5 or 6, wherein the opening adhesive body is pulled back to the manual sheet insertion opening by reverse rotation of the pair of sheet pressing rollers. The sheet folding bonding apparatus according to claim 7, wherein the predetermined range of the front end portion of the opening adhesive body is at least a range corresponding to the non-pressing portion in the opening adhesive body. The sheet folding bonding apparatus according to claim 7 or 8, wherein the predetermined range of the opening adhesive front end portion can be arbitrarily set by a user.

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