JP3398889B2 - Paper holding device in folding device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper pressing device for a folding device, and more particularly, in a folding device having a folding cylinder and a gripper cylinder, the paper to be gripped by the gripper mechanism of the gripper cylinder is rotated in the folding cylinder rotation direction. Paper pressing device for pressing the outer peripheral surface of the folding cylinder on the downstream side of the blade mechanism.

[0002]

2. Description of the Related Art A device in which a gripping mechanism of a gripping cylinder presses a paper to be gripped outward of a folding cylinder or a gripping cylinder in the radial direction is disclosed, for example, in Japanese Utility Model Publication No. 6-32448, full text specification, Japanese Utility Model Publication No. -54205, Utility Model Registration No. 2
The one disclosed in Japanese Patent No. 503804 is publicly known.

The full-text specification of Japanese Utility Model Laid-Open No. 6-32448 discloses a gripper folding device having a folding cylinder and a gripper cylinder, starting from a position near a position where a folding blade of the folding cylinder is installed, and upstream in a rotational direction of the folding cylinder. The outer peripheral surface of the folding cylinder to be the side, and the outer peripheral surface of the gripper cylinder on the upstream side in the rotating direction of the gripper cylinder, starting from the position near the gripper equipment position of the gripper cylinder, at least one of the outer peripheral surfaces, An elastic member having a length that almost reaches the bottom of the paper folded by the joint action of the cylinder is provided so as to protrude from the cylinder diameter, and the free movement of the paper to be folded from the gripped position of the paper is suppressed, The paper tail side is prevented from bulging or slipping between the folding cylinder and the gripping cylinder.

The one disclosed in Japanese Utility Model Publication No. 7-54205 is a roll-foldable folding device having a folding cylinder, a first gripping cylinder, and a second gripping cylinder for parallel folding for the second time. Front side (downstream side) in the rotation direction near the insertion knife
In the state of protruding from the surface of the first gripper cylinder and protruding from the surface, the first gripper cylinder side of the paper held by the first gripper cylinder, that is, the paper tail of the inner paper, A pressing member is provided that presses outwardly in the radial direction of the cylinder. This pressing member prevents the paper edge of the paper inside the first gripping cylinder from being held between the paper and the outside paper, and This is to prevent unnecessary folds inside the signature when the sheets are folded in parallel.

The utility model registration No. 2503804 discloses a folding machine having a folding cylinder, a first holding cylinder, and a second holding cylinder for parallel folding for the second time. To the front side (downstream side) in the direction of rotation near the insertion knife of the first gripper cylinder, which projects radially outward from the surface of the first gripper cylinder and is gripped by the first gripper cylinder at the time of folding and folding, that is, the inside paper. The paper edge of the paper is pressed and urged to the outside in the radial direction of the first gripping cylinder, and an elastic member that does not prevent relative rotation of the adjacent cylinders by elastically deforming is provided, and the first gripping cylinder is gripped by this elastic member. The bottom of the paper on the inside of the paper is pressed against the paper on the outside to prevent misalignment, and to prevent unnecessary folding inside the signature at the time of the second parallel folding.

[0006]

SUMMARY OF THE INVENTION A saw cylinder, a folding cylinder, and a gripping cylinder are provided in parallel, and continuous paper guided between the saw cylinder and the folding cylinder is provided.
The leading side is held by a holding mechanism provided on the folding cylinder and guided along the outer peripheral surface of the folding cylinder while being wound around the outer peripheral surface of the folding cylinder by rotation of the folding cylinder, and the cutting mechanism of the saw cylinder and the folding cylinder is provided. The paper is cut into a predetermined length by a joint action, the leading side of the cut paper is released from the holding, and the blade mechanism provided on the folding cylinder protrudes outward in the radial direction of the folding cylinder to remove the protruding portion. In the folding device that folds the cut paper in parallel with the center line of the folding cylinder by the gripping mechanism provided in the gripping cylinder, when the leading side of the paper is released from holding, the entire paper becomes free. Cannot follow the rotation of, and the position along the outer peripheral surface of the folding cylinder is not stable. Therefore, the gripping position when the paper is projected outward in the radial direction of the folding cylinder and held in the gripping mechanism, that is, the folding position is not fixed, and it is impossible to prevent the overlapping end positions from becoming uneven due to folding. It was

[0007] In such a situation, the actual Kaihei 6-324
What is shown in the full text of No. 48 is that the elastic member is used to hold down the free movement of the paper edge side (upstream side) from the gripping position of the paper to be gripped and folded, and the leading side of the paper. When the (downstream) is released from hold, the entire paper is rarely free. However, when the leading side (downstream side) of the paper is released from holding, the leading side (downstream side) from the position where the paper is to be held becomes free and cannot follow the rotation of the folding cylinder. Depending on the physical properties of the paper, the paper that moves according to the rotation of the folding cylinder may be pushed up to the back (upstream side) of the position where it should be gripped, causing a waist bend or leaning, and sticking the paper out to the outside in the radial direction of the folding cylinder. The gripping position when the gripper was gripped by the mechanism, that is, the folding position was difficult to determine uniformly, and the positions of the overlapping end portions were likely to be uneven due to folding. In addition, there is a risk that wrinkles may occur in the folded portion.

[0008] Further, those disclosed in Japanese Utility Model Publication No. 7-54205 and Utility Model Registration No. 2503804 are:
In both cases, when the first gripper cylinder grips the paper on the gripper side of the paper, that is, the paper bottom of the inner paper is pressed outward in the radial direction of the first gripper cylinder, The paper edge of the inner paper is pressed against the outer paper to prevent fraud, and to prevent unnecessary folding inside the signature at the time of the second parallel folding. Therefore, most of the paper, which is moved by the rotation of the first gripper cylinder with its leading end gripped by the first gripper cylinder, is separated from the outer peripheral surface of the first gripper cylinder, and the first gripper cylinder When the second gripper cylinder performs the second folding process, the entire paper becomes extremely free to keep up with the rotation of the folding cylinder and the position along the outer surface of the folding cylinder is stable. do not do. Therefore, it is possible to prevent the position of the gripping part, that is, the folding position, when the paper is projected outward in the radial direction of the folding cylinder and held by the gripping mechanism, that is, the overlapping end positions are not aligned due to folding. There wasn't.

Further, those disclosed in Japanese Utility Model Publication No. 7-54205 and Utility Model Registration No. 2503804 include:
Since the paper tail of the inner paper is pressed outward in the radial direction of the first gripper cylinder, even if the paper held by the first gripper cylinder is pressed against the second gripper cylinder, it is the first gripper cylinder and the second gripper cylinder. It is only at the time when the grip barrel and the paper are delivered,
In order to prevent the overlapping edges from being misaligned due to folding, it was necessary to precisely adjust the timing at which the first gripper cylinder releases the paper.

The present invention solves the problems described above, that is, the leading side of continuous paper is held by a holding mechanism provided on the folding cylinder, and is cut while guiding along the outer peripheral surface of the folding cylinder.
A fold that folds the cut paper in parallel with the center line of the folding cylinder while releasing the leading side from the holding, protruding it to the outside in the radial direction of the folding cylinder, holding the protruding part with the holding mechanism provided in the holding cylinder. In the device, even if the timing of releasing the paper is not adjusted very accurately, the gripping position when the paper is gripped by the gripping mechanism, that is, the folding position is fixed, and the position of the overlapping end is properly aligned. It is intended to be folded.

[0011]

In order to achieve the above-mentioned object, a paper pressing device in a folding device according to the present invention has a saw cylinder, a folding cylinder, and a gripping cylinder provided in parallel, and a space between the saw cylinder and the folding cylinder. The leading edge of the continuous paper is held by the holding mechanism provided on the folding cylinder, and is wound around the outer circumference of the folding cylinder by the rotation of the folding cylinder and guided along the outer circumference of the folding cylinder. The paper is cut into a predetermined length by the joint action of the cutting mechanism provided in the and, and the leading side of the cut paper is released from the holding and the outside of the folding cylinder in the radial direction of the folding cylinder by the blade mechanism provided in the folding cylinder. In the folding device that folds the cut paper in parallel with the center line of the folding cylinder by gripping the protruding portion with the gripping mechanism provided in the gripping cylinder, in the downstream side of the gripping mechanism in the rotating direction of the gripping cylinder. Gripper outer peripheral surface Before the release of the cut paper, which is moved with the rotation of the folding cylinder, from the holding paper, which is provided with elastic pressing means that protrudes in the radial direction by a distance larger than the outer circumferential surface of the folding cylinder and the gripping cylinder. Until it is projected by the insert blade mechanism, it is configured to be pressed to the outer peripheral surface of the folding cylinder on the downstream side close to the insert blade mechanism in the folding cylinder rotation direction.

Further, the pressing means in the paper pressing device in the folding device having the above-mentioned structure uses the brush, the resin having elasticity, the resin having foaming and elasticity, or the spring steel thin plate to cut the cut paper to the outer peripheral surface of the folding cylinder. It is supposed to be held.

[0013]

[Operation] According to the above configuration, the continuous paper guided between the saw cylinder and the folding cylinder is held by the holding mechanism provided on the folding cylinder at its leading side, and is wound around the outer surface of the folding cylinder by the rotation of the folding cylinder. While being guided, it is guided along the outer peripheral surface of the folding cylinder and cut into a predetermined length by the joint action of the cutting mechanism provided on the saw cylinder and the folding cylinder. Further, the leading side of the cut paper is released from the holding and is protruded outward in the folding cylinder radial direction by the blade mechanism provided in the folding cylinder, and the protruding portion is held by the holding mechanism provided in the holding cylinder, The cut paper is folded parallel to the center line of the folding cylinder.

In this folding device, the pressing means provided on the outer peripheral surface of the gripper cylinder is protruded in the radial direction more than the outer peripheral surface distance between the folding cylinder and the gripper cylinder, and the elasticity releases the paper from the holding. Before the sheet is ejected by the insert blade mechanism, the paper is pressed against the outer peripheral surface of the folding cylinder at a position on the downstream side close to the insert blade mechanism in the folding cylinder rotation direction.

The paper pressed at a position close to the downstream side of the blade mechanism in the folding cylinder rotation direction moves following the rotation of the folding cylinder at the pressed position, and the upstream side also moves in a blowing state. Follow Therefore, the part of the paper that is projected by the blade mechanism is stable on the outer peripheral surface of the folding cylinder, and the position where the paper is gripped by the gripping mechanism when it is projected outward in the radial direction of the folding cylinder. That is, the folding position is fixed, and folding is performed with the overlapping end positions aligned.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described with reference to the drawings showing the embodiments. FIG. 1 is a schematic view of a folding device embodying one form of the paper pressing device according to the present invention, and parts not related to the present invention are omitted for easy understanding. The folding device shown in the drawing includes a saw cylinder 5, a folding cylinder 3 and a gripping cylinder 1 which are provided in parallel with each other and whose peripheral surfaces facing each other are synchronously rotated in the same direction. FIG. 2 is a schematic perspective view of a main part of the gripper cylinder 1 shown in FIG. 1, and like FIG. 1, parts not related to the present invention are omitted for easy understanding.

A saw blade 51, which constitutes a cutting mechanism 50 together with a saw blade receiver 31 provided on the folding cylinder 3 which will be described later, is provided on the saw cylinder 5 at a position where the outer peripheral surface is out of phase by 180 degrees. There is. On the folding cylinder 3, saw blade receivers 31 constituting the cutting mechanism 50 together with the saw cylinder 51 are provided at respective positions where the outer peripheral surface thereof is divided into five equal parts and at the same intervals as the intervals of the saw blades 51 of the saw cylinder 5. In addition, a plurality of needles 32 as a holding mechanism are provided in the width direction of the folding cylinder 3 in the vicinity of the upstream side of the saw blade receiver 31 in the rotating direction of the folding cylinder 3, and further in the middle between the saw blade receivers 31. The blade mechanism 33 is provided at each position where the outer peripheral surface is divided into five parts. Mouth 1 has a fixed jaw 12
A gripping mechanism 11 consisting of a movable plate 13 and a movable plate 13
The holding means 15 is provided at each equally divided position and at the same position as the distance between the saw blades 51 of the saw cylinder 5, and on the outer peripheral surface immediately downstream of the gripping mechanism 11 in the rotation direction of each gripping cylinder 1. It is provided.

The folding cylinder 3 and the saw cylinder 1 are arranged so that their outer peripheral surfaces closely face the outer peripheral surface of the saw cylinder 5 and the outer peripheral surface of the gripper cylinder 1 closely face each other. The saw blade 51 of the saw cylinder 5 and the saw blade receiver 31 of the folding cylinder 3 sequentially face each other at positions close to each other on the outer peripheral surfaces of both cylinders, and the blade mechanism 33 of the folding cylinder 3 is disposed. The gripping mechanism 11 of the gripper cylinder 1 is provided so as to sequentially face each other at closely facing positions on both outer peripheral surfaces of the trunks, and the facing surfaces are synchronously rotated in the same direction.

Further, the saw blade 51 of the saw cylinder 5 bites into the saw blade receiver 31 of the folding cylinder 3 at a position where the outer peripheral surface of the saw cylinder 5 and the outer peripheral surface of the folding cylinder 1 closely face each other, and is fed between them. It is provided so as to cut the continuous paper 7.

The needle 32, which is a holding mechanism of the folding cylinder 3, has a saw blade receiver 31 near the downstream side and a saw blade 51 facing the needle blade 32 which cooperates to cut the continuous paper 7 substantially at the same time. 3 protrudes outward from the outer peripheral surface of the continuous paper 7 and pierces the continuous paper 7 immediately upstream of the cutting position at a plurality of positions in the width direction thereof.
When the folding cylinder 3 is rotated by about 3/5 from that, the paper 71 which is buried inward from the outer peripheral surface of the folding cylinder 3 and cut from the continuous paper 7 after the holding is held. It is provided to finish. Further, the blade mechanism 33 protrudes outward from the outer peripheral surface of the folding cylinder 3 when facing the gripping mechanism 11 of the gripping cylinder 1 at a position close to the outer peripheral surface of the gripping cylinder 1, and rotates in the rotation direction of the folding cylinder 3. It is provided so that a substantially central portion of the cut paper 71 held by the needle 32 on the downstream side is projected to the outside in the radial direction of the folding cylinder 3.

The gripping mechanism 11 of the gripping cylinder 1 is opposed to the insert blade mechanism 33 of the folding cylinder 3 at a position close to the outer peripheral surface of the folding cylinder 3, and the insert blade mechanism 33 causes the approximately central portion of the paper 71 to be folded. After protruding outward in the radial direction of 3, the movable plate 13 is closed toward the fixed jaw 12, and the paper 71 inserted between the fixed jaw 12 and the movable plate 13 is gripped and folded. Further, as shown in FIG. 2, the holding means 15 is provided at a plurality of axial positions (5 in the figure) on the outer peripheral surface of the gripper cylinder 1.
Along the outer peripheral surface of the gripper cylinder 1 to a length of 1/10 or less of the outer circumference of the gripper cylinder 1, that is, two adjacent to each other in the circumferential direction.
It is provided with a half length or less between the two gripping mechanisms 11, 11 and is projected in the radial direction of the gripping cylinder 1 more than the distance between the outer peripheral surface of the folding cylinder 3 and the outer peripheral surface of the gripping cylinder 1 in close proximity to each other. At the same time, it is provided so as to be able to pass through the above-mentioned close and opposite intervals by elastic deformation, and presses a plurality of positions in the width direction of the paper 71.

According to the structure described above, the saw cylinder 5, the folding cylinder 3, and the gripper cylinder 1 rotate in synchronization with each other as described above by the operation of the folding device. Then, the continuous paper 7 is fed to a position where the outer peripheral surface of the saw cylinder 5 and the outer peripheral surface of the folding cylinder 3 closely face each other by an appropriate upstream device (not shown). This continuous paper 7
It is pierced by the needle 32 protruding from the outer peripheral surface of the folding cylinder 3 and held at a plurality of positions in the width direction, and the saw blade 51 is cut by biting the saw blade receiver 31 immediately downstream of the held position. It The cut paper (not shown) on the downstream side becomes end paper, falls downward, and is appropriately discharged.

The continuous paper 7 held by the needle 32 passes through a position where the outer peripheral surface of the saw cylinder 5 and the outer peripheral surface of the folding cylinder 3 closely face each other by the rotation of the folding cylinder 3, and is wound into the folding cylinder 3. However, when the folding cylinder 3 is guided by one-fifth, and the folding cylinder 3 rotates one fifth, the portion passing through the position where the outer peripheral surface of the saw cylinder 5 and the outer peripheral surface of the folding cylinder 3 are close to each other,
The needle 32 protruding from the outer peripheral surface of the folding cylinder 3 is again stabbed to hold a plurality of positions in the width direction, and the saw blade 51 bites the saw blade receiver 31 to cut the position immediately downstream of the held position. Then, the preceding portion is formed as the cut paper 71. After that, at the position where the outer peripheral surface of the saw cylinder 5 and the outer peripheral surface of the folding cylinder 3 closely face each other, the holding and cutting of the continuous paper 7 as described above are repeated.

The cut paper 71 held by the needles 32 of the folding cylinder 3 has its needle holding portions located close to the outer peripheral surface of the folding cylinder 3 and the outer peripheral surface of the gripping cylinder 1 as the folding cylinder 3 rotates. pass. Then, the central portion of the cut paper 71 in the longitudinal direction reaches the close opposing position of the outer peripheral surface of the folding cylinder 3 and the outer peripheral surface of the gripper cylinder 1, and before the needle 32 releases the paper 71, the gripper cylinder 1
The outer peripheral portion of the pressing means 15 provided on the outer peripheral surface of the holder comes into contact with the outer peripheral surface of the folding cylinder 3 through the cut paper 71, and the cut paper 71 has the outer peripheral surface of the folding cylinder 3 and the grip cylinder 1. The portion passing through the position close to and facing the outer peripheral surface and a portion on the downstream side of the portion, which is close to the outer peripheral surface, are folded by the elastic force of the pressing means 15 into the folding cylinder 3.
It is pressed against the outer peripheral surface of the folding cylinder 3 and the gripper cylinder 1 in that state.
Rotate synchronously.

As the folding cylinder 3 rotates, the blade mechanism 33 holds the gripping cylinder 1 through the cut paper 71 at a position where the outer peripheral surface of the folding cylinder 3 and the outer peripheral surface of the gripping cylinder 1 closely face each other. When facing the mechanism 11, the needle 32 is buried inward from the outer peripheral surface of the folding cylinder 3 to release the cut paper 71 from holding. Also,
The blade mechanism 33 projects outward in the radial direction from the outer peripheral surface of the folding cylinder 3, projects the substantially central portion of the cut paper 71, and inserts it between the fixed jaw 12 of the gripping mechanism 11 and the movable plate 13. At this time, the needle 32 is buried in the folding cylinder 3 and the paper 71
Since the pressing of the paper 71 against the outer peripheral surface of the folding cylinder 3 by the pressing means 15 before the opening is continued until just before the insert blade mechanism 33 projects outward in the radial direction of the folding cylinder 3,
The cut paper 71 is pressed by the pressing means 15 and moves with the rotation of the folding cylinder 3 even if it is released a little earlier from the holding of the needle 32. Therefore, the blade mechanism 33 holds the same portion of each cut paper 71 and holds the fixed jaw 1 of the gripping mechanism 11.
It can be inserted between 2 and the movable plate 13.

The gripper mechanism 11 of the gripper cylinder 1 moves the movable plate 13 when the substantially central portion of the paper 71 cut by the insert blade mechanism 33 is inserted between the fixed jaw 12 and the movable plate 13 of the gripper mechanism 11. The gripping mechanism 11 is closed by moving toward the fixed jaw 12, and the cut paper 71 is gripped and folded. The gripper cylinder 1 rotates while holding the cut paper 71, and when it rotates by about ⅗, the movable plate 13 moves in a direction away from the fixed jaw 12, and the gripper mechanism 11 is opened to fold the paper ( (Not shown) is delivered to a downstream discharge mechanism (not shown).

The action of the folding cylinder 3 and the gripper cylinder 1 is continuously performed following the continuous action of the saw cylinder 5 and the folding cylinder 3, and the folding is continued.

In the folding device described above, the diameters of the saw cylinder 5, the folding cylinder 3 and the gripper cylinder 1 are approximately 2: 5: 5, but the diameter ratio of each cylinder is not limited to this. . In addition, the pressing means 15 is a radial direction of the gripper cylinder 1 or a brush whose brush bristles rise at an appropriate angle with the radial direction, an elastic resin such as rubber, or a foamed elastic resin such as urethane foam. The outer circumference of the folding cylinder 3 is directly or indirectly utilized by using a member having various elasticity such as a spring steel or a plastic thin plate which is deformable by pressing force, an elastic hollow body inflated by air or the like, or various springs. It is sufficient that the surface and the outer peripheral surface of the gripper cylinder 1 can pass through a close opposing distance by elastic deformation.

[0029]

As described above, according to the present invention, the paper inserted into the gripping mechanism by the insert blade mechanism is caused to follow the rotation of the folding cylinder until it is inserted into the gripping mechanism by the insert blade mechanism, and the folding cylinder It is possible to stabilize the position along the outer peripheral surface, and it is possible to grip when the paper is pushed out to the outside in the radial direction of the folding cylinder and held in the gripping mechanism without adjusting the release timing of the paper very accurately. The position, that is, the folding position can be made constant, and the positions of the overlapping end portions are now aligned by the folding.

Further, since the paper inserted into the gripping mechanism by the blade mechanism is not pushed up by the rear side from the position where it should be gripped, the waist is not bent or leaned, and this paper is placed outside in the radial direction of the folding cylinder. It is possible to keep the gripping position, that is, the folding position when the gripping mechanism sticks out and is gripped by the gripping mechanism, and the positions of the overlapping ends are properly aligned. In addition, wrinkles are no longer generated in the folded portion. Therefore, it is possible to fold with a good folded shape and good quality.

[Brief description of drawings]

FIG. 1 is a schematic view of a folding device embodying one form of a paper pressing device according to the present invention, and parts which are not related to the present invention are omitted for easy understanding.

FIG. 2 is a schematic perspective view of the gripper cylinder 1 shown in FIG. 1, and like FIG. 1, parts not related to the present invention are omitted for ease of understanding.

[Explanation of symbols]

1 ... holding body, 11 ... holding mechanism, 12 ... fixing chin, 1
3 ... Movable plate, 15 ... Pressing means, 3 ... Folding cylinder, 31 ... Saw blade receiver, 32 ... Needle, 33 ... Blade mechanism, 5 ... Saw cylinder, 50 ...
Cutting mechanism, 51 ... Saw blade, 7 ... Continuous paper, 71 ... Cut paper.

Continuation of the front page (56) Reference JP-A-8-230148 (JP, A) JP-A-57-42456 (JP, A) Actually open 6-32448 (JP, U) Actually open 63-142362 (JP , U) Utility model registration 2503804 (JP, Y2) Jikhohei 7-54205 (JP, Y2) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65H 45/28

Claims (5)

(57) [Claims] 1. A folding cylinder in which a saw cylinder, a folding cylinder, and a gripping cylinder are provided in parallel, and continuous paper guided between the saw cylinder and the folding cylinder is held by a holding mechanism provided on the leading side of the folding cylinder. Is guided by the outer peripheral surface of the folding cylinder while being wound around the outer peripheral surface of the folding cylinder by the rotation of the cutting cylinder, and is cut into a predetermined length by the joint action of the cutting mechanism provided on the saw cylinder and the folding cylinder, and further cut. Fold the cut paper by releasing the leading side of the paper from the holding side, projecting it outward in the radial direction of the folding cylinder with a blade mechanism provided on the folding cylinder, and holding the protruding part by the holding mechanism provided on the holding cylinder. In a folding device that folds parallel to the center line of the cylinder, the elastic force is applied to the outer peripheral surface of the gripper cylinder on the downstream side, which is close to the gripper mechanism in the gripper rotation direction, in a radial direction larger than the distance between the outer peripheral surface of the gripper cylinder and the gripper cylinder. Holding hand The holding means is provided, and the cutting paper that is moved with the rotation of the folding cylinder is moved by the pressing mechanism until the paper is ejected from the holding blade until the paper is ejected from the holding blade mechanism in the folding cylinder rotation direction. A paper pressing device for a folding device, characterized in that it is pressed against the outer peripheral surface of the folding cylinder on the downstream side close to the. 2. The paper pressing device in a folding device according to claim 1, wherein the pressing means presses the cut paper on the outer peripheral surface of the folding cylinder with a brush. 3. The paper pressing device in a folding device according to claim 1, wherein the pressing means presses the cut paper on the outer peripheral surface of the folding cylinder with a resin having elasticity. 4. The paper pressing device in a folding device according to claim 1, wherein the pressing means presses the cut paper on the outer peripheral surface of the folding cylinder with a foamed and elastic resin. 5. The pressing means presses the cut paper on the outer peripheral surface of the folding cylinder by a spring steel thin plate.
The paper pressing device in the folding device according to claim 1.