JP2000335819A - Sheet cutting and folding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of cutting and folding sheets in the same process line. SOLUTION: This device is provided with a feeder part 11 supplying a paper sheet 1, a cutting part 13 cutting a supplied paper sheet along a supplying direction and forming divided sheets 2, 2 divided into two, a first carrier part 14 carrying each divided sheets 2, 2 divided into two, a first sheet folding part 15 folding each carried divided sheets 2, 2 in a direction orthogonally crossed with a carrier direction in two and forming each two fold sheets 3, 3, second carrier parts 16, 17 carrying each folded two fold sheet 3, each third carrier part 18, 19 carrying each two carried fold sheet 3 in the direction orthogonally crossed with the carrier direction and second sheet folding parts 20, 21 folding each two fold sheet 3 carried by the third carrier parts 18, 19 in two in the direction orthogonally crossed with the carrier direction and forming four fold sheets 4, 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet cutting and folding apparatus for cutting a sheet such as a printing sheet and cutting the sheet into two, and folding each cut sheet into four.

[0002]

2. Description of the Related Art Conventionally, in a processing step such as bookbinding of printed matter, when a sheet sheet such as printing paper is cut into two, and each cut sheet sheet is folded in four to form a signature. First, in the sheet cutting process, cut the sheet using a cutting machine, after this cutting process is completed,
In another folding step, folding was performed using a single sheet folding machine.

[0003]

As described above, the cutting process and the folding process of a single sheet are performed in separate processes, so that each process requires personnel, and
Since an intermediate transfer operation and an assortment operation are required between each process, the process is lengthened and the operation time is lengthened accordingly.

[0004] Further, the work yield between the steps is poor due to the difference in work processing efficiency in each step, and a problem may occur in work management.

An object of the present invention is to solve the above-mentioned problem by providing an apparatus capable of performing a cutting process and a folding process on a single sheet in the same process line.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a single-sheet sheet 1;
, A cutting unit 13 for cutting the fed single sheet 1 along the feeding direction to form the divided sheets 2, 2, and the divided sheets 2, 2, respectively. And a first transport unit 14 for transporting the divided sheets 2 and 2 in a direction orthogonal to the transport direction to form two folded sheets 3 and 3
Sheet folding section 15, second transport sections 16 and 17 for transporting each folded two-fold sheet 3, and third transport section for transporting each transported two-fold sheet 3 in a direction orthogonal to the transport direction. 18 and 19, and the two-folded sheet 3 conveyed by the third conveying units 18 and 19, respectively.
And a second sheet folding section 20, 21 for folding the sheet into two in the direction orthogonal to the conveying direction to form four-fold sheets 4, 4.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A sheet cutting and folding apparatus according to the present invention will be described below in detail according to an embodiment. FIG. 1 is an overall plan view of the apparatus according to the present invention. Feeder unit that accumulates and supplies one by one to the front, 1
Reference numeral 2 denotes a sheet feeding unit (for example, a vacuum air suction type, sheet feeding unit of a separating roll type) for feeding the stacked topmost sheet 1 forward, and 13 cuts and separates the sheet 1 in the feeding direction. A cutting unit 14 that divides the sheet 2 and 2 into two, and a first unit 14 that conveys the divided sheet 2 and 2
A transport section 15 is a first sheet folding section that folds the divided sheets 2 and 2 in a direction orthogonal to the transport direction to form a two-fold sheet 3, and 16 and 17 are folded at the first sheet folding section 15. The second transport unit, which transports the folded sheets 3 in the same direction as the first transport unit 14, respectively.
Reference numerals 8 and 19 denote third transport units for transporting in a direction perpendicular to the transport direction, and reference numerals 20 and 21 denote a second sheet folding unit that folds in two in a direction perpendicular to the transport direction to form four-fold sheets 4 and 4. Department.

FIG. 2A shows a two-fold sheet 3 obtained by folding each of the two divided sheets 2 and 2 at a fold a in a first sheet folding section 15, and FIG. Is a four-fold sheet 4 obtained by folding the two-fold sheets 3 and 3 at the fold b at the second sheet folding sections 20 and 21 respectively.

FIG. 3 is a side view of the apparatus according to the present invention. The sheet 1 is aligned flat on a front table 11a of a feeder section 11 with its front end aligned, and is placed flat on a vertically movable table 11b. Integrated.

For example, a delivery unit 12 using a vacuum air suction system sucks and lifts the uppermost sheet 1 one by one, and is driven by a pair of upper and lower delivery rolls 12b, 12b which are supported by a rotating shaft 12a and driven to rotate. Between the nips.

The introduced sheet 1 is fed by a delivery roll 1
The sheet 1 is sandwiched between the cutting members 2b and 12b and introduced into the cutting portion 13. The sheet 1 is supported by a rotating blade 13b that is driven and rotated by a rotating shaft 13a of the cutting portion 13 and a rotating shaft 13c. Blade receiving roll 1 driven and rotated by receiving the rotating blade 13b
3d, the sheet is cut in half along the cutting line c in the transport direction, and is introduced into the first transport unit 14 as two divided sheets 2 and 2.

As shown in FIGS. 1 and 3, the first transport section 14 includes two or several lower endless belts 14a, and a paper alignment that rotates following the upper endless belt 14a in contact with the upper end of the introduction section. A roll 14b, a front abutting portion 14c, 14c, 14c, 14c which is disposed on the delivery side of the upper endless belt 14a and which protrudes and waits to align the front ends of the two divided sheets 2, 2; A flat guide plate 14d provided between the endless belts 14a, and two divided sheets 2 introduced into the first transport unit 14,
The needles 14e and 14e, each of which pulls out the outer end portion of the upper endless belt 14a to a predetermined position on the outer side thereof, and separates and abuts on the upper side of the carry-out portion of the upper endless belt 14a to perform the support shaft 14f.
And a feed roll 14g which is rotatably supported by and rotates following the contact.

As shown in FIG. 3, each of the needle portions 14e is
The pair of upper and lower nip rolls, which are driven and rotated by a rotating shaft in a direction parallel to the conveying direction of the divided sheet 2, perform separation and contact operations. Alignment roll 1
4b, the outer ends of each of the divided sheets 2 and 2 are introduced between the nip rolls at the time of the separating operation, and the contact operation is performed immediately when the front end of each of the divided sheets 2 and 2 contacts the front contact portion 14c. Then, the outer ends of the divided sheets 2 and 2 are pulled out to a predetermined position on the outer side in a direction orthogonal to the conveying direction and positioned. As a result, the front and outer ends of each of the divided sheets 2 and 2 that are divided and conveyed by the first conveying unit 14 are positioned, and their inner ends are separated by a distance d (FIG. 1). It will be in the separated state.

When the front end of each of the divided sheets 2 and 2 comes into contact with the front contact portion 14c, the endless belt 14a and the endless belt 14a are separated from each other so that the rear end of the divided sheets 2 and 2 is separated from the nip between the endless belt 14a and the aligning roll 14b. The distance between the nip between the aligning roll 14b and the front contact portion 14c is set to be substantially equal to the length of the sheet 1 in the transport direction.

The divided sheets 2 and 2 divided and positioned by the first transport section 14 are subsequently carried into the first sheet folding section 15 and formed into two folded sheets 3 and 3 respectively.

As shown in FIG. 3, the first sheet folding section 15 includes a pair of upper and lower opposing press-introducing rolls 15a, 15a for introducing the divided sheets 2, 2, respectively, and introduction of the introduction rolls 15a, 15a. A pair of folding guide plates 15b, 15b, which are inclined upward from the opposing side opposite to the side and are separated from and opposed to each other, and the folding guide plates 15b, 15b
A stop plate 15c is provided at an upper portion between the fold-in roll 15d and a fold-in roll 15d which is opposed to the lower side of the fold-in roll 15a.
A delivery roll 15e facing the lower side of the folding roll 15d, a guide plate 15f provided between the lower folding introduction roll 15a and the delivery roll 15e and facing the peripheral surface of the folding roll 15d; Roll 1
The feed guide plate 15g is provided horizontally outside the space between the feed roll 5d and the feed roll 15e.

The front end of each divided sheet 2 introduced between the folding introduction rolls 15a, 15a of the first sheet folding section 15 is introduced between the folding guide plates 15b, 15b after passing between the rolls 15a, 15a. And temporarily stops by contacting the stop plate 15c. On the other hand, the rear end of the divided sheet 2 is moved in the direction of the folding guide plates 15b, 15b by the continuous introduction operation of the folding introduction rolls 15a, 15a with the front end stopped. As shown in FIG. 3, the split sheet 2 is bent, and the folded sheet is bent between the lower folding roll 15a and the folding roll 15d to be folded in half.

Subsequently, the divided sheets 2, 2 which are folded in two are guided by the guide plate 15f and introduced between the folding roll 15d and the delivery roll 15e, and are folded as shown in FIG. 2 (a). The two-folded sheets 3 and 3 are formed by being folded in two at the eye a, and the two-folded sheets 3 and 3 are guided by the horizontal delivery guide plate 15 g and introduced into the second transport units 16 and 17.

As shown in FIG. 3, the second transport sections 16, 17
Is a third transport unit 1 for transporting each of the two-folded sheets 3 to be transported in a direction orthogonal to the transport direction.
8 and 19, and are connected to the second transport units 16 and 1 respectively.
Reference numeral 7 includes endless belts 16a and 16b and endless belts 17a and 17b, respectively.

For example, one of the second transport sections 16 is set to be longer than the other second transport section 17, and the two-fold sheet 3 transported by the second transport section 16 is moved in the transport direction. The two-fold sheet 3 is sent out and delivered to the endless belt 18a of the third transport unit 18 that transports the sheet in the orthogonal direction, and the other second transport unit 17 transfers the two-fold sheet 3 transported by the second transport unit 17. Belt 19a of the third transport section 19 for transporting the sheet in a direction orthogonal to the transport direction.
To send out the folded sheet 3 and deliver it.

The third transport sections 18 and 19 transport the two-folded sheets 3 and 3 respectively, and each of the second transport sections 18 and 19 has the same structure as the first sheet-fold section 15.
0, 21 and the second sheet folding units 20, 21
The two-folded sheets 3, 3 are folded in two in a direction orthogonal to the conveying direction, and the first sheet folded part 15 and the second sheet folded parts 20, 21 are folded as shown in FIG. The four-fold sheets 4, 4 folded in four at b are formed.

At the subsequent stage of one second sheet folding section 20,
Lower endless belt 22a and upper endless belt 2
The second sheet folding section 20 is provided with a delivery conveying section 23 comprising a lower endless belt 23a and an upper endless belt 23b at a stage subsequent to the delivery conveying section 22 formed by the second sheet folding section 20b. The folded four sheets 4 are manufactured and discharged.

[0023]

According to the sheet cutting and folding apparatus of the present invention, the cutting step and the folding step of a single sheet can be continuously performed on the same production line by the same apparatus. Reduces the number of personnel required for processing in separate processes as in the past, and saves labor time between processes such as intermediate transfer and sorting of sheet workpieces between cutting and folding processes in separate processes. In addition, there is an effect that the yield of the sheet work can be improved and the work management efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a sheet cutting and folding apparatus according to an embodiment of the present invention.

2A is a perspective view of a sheet folded in two by the sheet cutting and folding apparatus of the present invention, and FIG. 2B is a perspective view of a sheet folded in four by the sheet cutting and folding apparatus of the present invention.

FIG. 3 is a partial side view of the embodiment of the sheet cutting and folding apparatus of the present invention.

[Explanation of symbols]

a ... 2nd fold b ... 4th fold c ... Cutting line 1 ... Sheet sheet 2 ... Divided sheet 3 ... Folded sheet 4 ... Quad folded sheet 11 ... Feeder unit 12 ... Sheet sending unit 13 ... Sheet cutting unit 14 ... No. 1 transport section 15 first sheet folding section 16 and 17 second transport section 18 and 19 third transport section 20 and 21 second sheet folding section 22 and 23 delivery transport section

Claims (1)

[Claims] 1. A feeder section 11 for feeding a single sheet 1.
And a cutting unit 13 for cutting the fed sheet 1 along the feeding direction to form the divided sheets 2 and 2
And a first transport unit 14 that transports the divided sheets 2 and 2 respectively divided into two, and the divided sheets 2 that are transported,
2 is folded in two in a direction orthogonal to the transport direction to form two folded sheets 3, 3, and a second transport unit 1 that transports each folded two-fold sheet 3
6, 17; a third transport section 18, 19 for transporting the transported bi-fold sheet 3 in a direction orthogonal to the transport direction; and a 2-fold transport, which is transported by the third transport section 18, 19, respectively. A sheet cutting and folding apparatus comprising second sheet folding units (20, 21) for folding a sheet (3) in two in a direction orthogonal to a conveying direction to form four-fold sheets (4, 4).