JPH038662A - Writing paper guide - Google Patents

Abstract

PURPOSE:To solve the flapping by air of the top end of a writing paper held and brought by a writing paper holding part of the drum of a folding machine by forming a writing paper guide part with a brush hair facing the drum circumferential surface in the state inclined to the adjacent normal of the drum circumferential surface in such a manner as to accord with the rotating direction of the drum circumferential surface. CONSTITUTION:When the top end of a writing paper is flapped by air, the portion largely separated from the drum circumferential surface collides with the side surface of a brush hair 13. However, the part around the top end of the brush hair 13 inclined in such a manner as to accord with the rotating direction of the drum circumferential surface retreats with the inclination being increased, and softens the collision shock applied to the writing paper top end. Additionally, the writing paper top end largely separated from the drum circumferential surface by the flapping is guided to the hair top side while being returned back to the drum circumferential surface side by the inclined side part of the brush hair 13. Consequently, the writing paper is introduced into a gap between the writing paper guide part 12 of a writing paper guide 1 and the drum circumferential surface without any inconvenience.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a paper guide device for a folding machine that cuts and folds web paper. In detail, it relates to a paper guide device for maintaining the paper held and displaced by the paper holding section of the six cylinders of the folding machine in a state close to the peripheral surface of each cylinder, and more specifically, it relates to a paper paper guide in the form of a plan. Concerning

(Prior art) A brush-shaped paper guide is known, for example, from Utility Model Application Publication No. 63-1423.
A conventional example is known as shown in Publication No. 62 "Origami Leaf Pressing Brush for Rotary Folding Machine" and the full specification thereof. As shown in FIG. 3, in the brush-shaped paper guide (21), brush bristles (22) made of synthetic or natural fibers or bristles are folded into opposing folds i1;1 (23).
It is planted perpendicularly to the inner surface of the arc-shaped base 1 (24) having a larger radius. And brush bristles (2
2) with the tip side facing the circumferential surface of the folding drum (23), and
24) is arranged so as to be substantially concentric with the folding cylinder (23).

That is, the brush bristles (22) are substantially along the normal line (2)' to the circumferential surface of the folding drum (23), and are substantially perpendicular to the circumferential surface of the folding drum (23).

(Problem to be Solved by the Invention) By the way, the folding machine, after cutting the web paper, sends the paper to the downstream side while holding the tip or middle of the cut paper in the paper holding section of the six cylinders and delivering it. Fold at right angles to the feeding direction.

In this operation, the row of needles, which are paper holding parts,
When the paper is held and rotated after being pierced near the cut end of the paper, the leading edge of the paper may be agitated by the air and become loose. In this fluctuating state, if the brush bristles are provided approximately at right angles to the body circumferential surface as in the conventional example, when the leading edge of the paper reaches the starting end of the paper guide, the sides of the brush bristles Collision may cause unnecessary folding of the leading edge of the paper,
The problem is that the expansion of the needle puncture hole holding the paper may cause the paper to shift toward the rear end, or in the worst case, the paper may come off the needle.

In addition, the brush bristles become flattened due to long-term use and the bristles spread out, causing them to act in a reverse manner on the tip of the paper that is taken to the paper holding section of the barrel, increasing the frequency of the above-mentioned inconvenience.

(Means for Solving the Problems) In order to solve the problems of the conventional example, the present invention provides a folding machine that cuts and folds web paper along the circumferential surface of the cylinder downstream of the web paper cutting position. The paper guide portion provided in close proximity to each other is composed of brush bristles facing the trunk circumferential surface in an inclined state in the direction of rotation of the trunk circumferential surface with respect to the normal line of the adjacent trunk circumferential surface. We will provide a melon guide featuring this feature.

(Function) As the cylinder rotates, the paper is held and carried by the paper holding section, and the leading edge of the paper reaches the starting end of the paper guide. At this time, even if the tip of the paper is agitated by the air and flutters, the brush bristles, which are inclined in accordance with the rotation of the circumferential surface of the body, retreat to the inclined side to alleviate the collision impact on the tip of the paper. On the side, the tip of the paper, which has become separated from the body circumferential surface due to fluctuation, is
Guide it toward the tip of the hair while returning it to the body circumferential side. Then, the paper is guided into the gap between the barrel circumferential surface and the paper guide, and the paper guide section maintains the paper in a position close to the barrel circumferential surface.
Example) Next, the present invention will be described with reference to the drawings showing embodiments.

(1) is a paper guide. In this invention, the paper guide (1) includes a base (11) and a paper guide portion (12). The paper guide section (12) is provided with brush bristles (13) on the base (11) so as to be inclined to one side.

That is, for example, the paper holding section AI is located downstream of the cutting position X of the web paper W of a folding machine whose cylinder arrangement is schematically shown in FIG. , Bl
, CI, DI, and El are provided at positions corresponding to sections holding paper (not shown). Furthermore, when the paper guide part (12) is provided close to and facing the trunk circumferential surface, the paper guide part (12)
The normal line of the circumferential surface of states A, B, C1D, and E that face each other (body B
(indicated by Z in Fig. 1), condition A
S.B.

The brush bristles (1
3).

The angle α can be determined as appropriate for the design, but 10 degrees ≦ α ≦
Good results have been obtained within a range of 50 degrees.

In addition, the arrow of the rotating body in the figure indicates the direction of rotation of the state.

According to the above configuration, according to the rotation of the states A%B, C1D, and E, the respective paper holding portions At.

[41% The paper (not shown) held and taken by CI, DI, and El reaches the starting end of the paper guide 0).

At this time, if the tip of the paper is agitated by the air and causes fluctuation, the part with a large distance from the body circumferential surface is the brush bristles (13
) collide with the side of the vehicle. However, the portion near the tip of the brush bristles (13), which is inclined in the direction of rotation of the circumferential surface of the body, increases the angle of inclination and retreats, thereby alleviating the collision impact on the tip of the paper. In addition, the leading end of the paper, which has become separated from the trunk circumferential surface due to fluctuation, is returned to the trunk peripheral surface by the slanted sides of the bristles (13) and guided toward the bristles. As a result, the paper can be introduced into the gap between the paper guide portion (12) of the paper guide (1) and the circumferential surface of the trunk without any inconvenience. The paper introduced into the gap is guided by the paper guide section (
12), the holding and carrying is continued while the position close to the trunk circumferential surface is maintained.

In addition, when the brush bristles become flat due to long-term use of the paper guide (1), many of them become sore that the angle of inclination becomes large, and the paper holding portions AI, [3t, CI, Dl, El, etc.
The reverse action on the leading edge of the paper that is taken along with the paper is almost eliminated.

This invention is not limited to the embodiments described above, but may include modifications in design without departing from the scope of the claims.

(Effects) Therefore, in this invention, the leading edge of the paper held and carried by the paper holding part of the folding machine body is agitated by the air, fluttering, and collides with the brush bristles of the paper guide, causing inconveniences such as the leading edge of the paper being carried. Unnecessary bending of the paper, shifting of the paper towards the rear end side, separation of the paper from the paper holding part, etc. can be wiped away.

In addition, since the bristles of the paper guide are inclined in the direction of rotation of the opposing cylinder circumferential surface, that is, in the direction in which the paper is taken, the paper guide of the paper guide Even if the gap between the part and the circumferential surface of the body is made smaller than in the conventional case, the increase in the friction S resistance force acting on the paper is smaller than in the conventional case. Since the folding blade can be maintained at a position closer to the body circumferential surface, such a structure is effective in improving the accuracy of the folding position of the paper by operating the folding blade from the inner side to the outer side.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a paper guide of the present invention,
FIG. 2 is a partially enlarged view of the folding and collecting body, FIG. 2 is a schematic diagram showing an example of a folding machine incorporating the paper guide of the present invention, and FIG. 3 is a diagram of a conventional example. (1)...Ryoshi guide, (11)...
Base, (12) Paper guide section, (13) Brush bristles, A Needle barrel, B folding and collecting barrel, C
...Gripper cylinder, DlE...Deceleration side, F...
...Traditional theater, AI, Bl, C1, DI, El...
...Paper holding part, B2...Folding blade, W...
...Web paper, X...Web paper cutting position, z
S z'...Normal to the trunk surface, α...Inclination angle of the brush bristles to the normal to the trunk surface

Claims (1)

[Claims] In a folding machine that cuts and folds a web of paper, the paper guide section, which is provided adjacently along the circumferential surface of the cylinder on the downstream side of the web paper cutting position, A paper guide comprising brush bristles facing the circumferential surface of the trunk in an inclined state in the direction of rotation of the paper guide.