JPH0730615Y2 - Paper folding machine - Google Patents

Description

[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to a paper folding machine, and in particular, when stacking two folded sheets of paper in a V shape, a stacking error occurs. To a new improvement for stacking in a good alignment state without any problems.

b. Conventional Technology Conventionally, as this type of paper folding machine, various configurations are adopted, and a typical configuration among them is shown in FIG. The configuration shown in FIG. 3 of JP-A-61-191358 can be disclosed.

That is, a pair of folding rollers 2a and 2b having a feeding function, which are superposed in the vertical direction and joined to each other, are configured to rotate in directions opposite to each other at a position below the passage 1a in the guide body indicated by reference numeral 1 in FIG. It is installed in.

A pressing roller 3 is in contact with the folding roller 2a, and a folding body 4 having a passage 4a is arranged in an inclined state at a position adjacent to the folding roller 2b.

The conventional paper folding machine is configured as described above, and its operation will be described below.

First, the paper 5 sent to the passage 1a of the guide body 1 is sent downward by the pressing roller 3 and the folding roller 2a, and the tip of the paper 5 is sent downward in the passage 4a of the fold body 4. ,
When the leading edge of the paper 5 comes into contact with the closed end 4b of the passage 4a, the substantially central portion 5a of the paper 5 is bent and inserted between the folding rollers 2a and 2b in a bent state, as shown in FIG. In addition, the sheets are superposed on each other in a double-folded state and continuously sent out.

e. Problems to be solved by the invention Since the conventional paper folding machine is configured as described above,
It had the following problems.

That is, since the paper 5 folded in half by the pair of paper folding rollers 2a and 2b is fed out in the lateral direction, the fed paper 5 is overlapped with each other in the lateral direction as shown in FIG. As if it had a shape like fish sashimi lined up, for example, when it was requested to fold it in half and stack it in a V shape when it was stacked, it was completely folded. The paper could not be polymerized into a V shape, could not be aligned in the container and could not meet such requirements.

Further, as described above, the paper that is continuously stacked in the lateral direction and sent out is bulky, and thus requires a large number of storage places, and is not suitable for election papers.

Further, when the number of sheets of paper is counted by a counter, it is impossible to count the number of sheets of paper in the conventional state.

The present invention has been made to solve the above problems, and particularly, when stacking two folded sheets of paper in a V-shaped state, it is preferable that a stacking error does not occur. An object of the present invention is to provide a paper folding machine that can be stacked in an aligned state.

d. Means for Solving the Problem In the paper folding machine according to the present invention, the fed-out paper is sent to a stopper body by a first paper folding roller and a pressing roller located above the first paper folding roller, and the stopper is provided. The first and second paper folding rollers are folded in two by the first paper folding roller and the second paper folding roller that is in contact with the first paper folding roller. In the paper folding machine, which is located directly below the rollers and has the valley-shaped bottom portion, the paper folding rollers directly fall from the paper folding rollers in a state where the paper is partially folded and are stacked. Friction members that contact each other are formed at both end positions of each of the first and second paper folding rollers, and the plurality of ridge rings formed on the respective circumferential surfaces of the first and second paper folding rollers are respectively Different positions in the axial direction It is configured to rotate at an identical peripheral speed while being disposed.

e. Action In the paper folding machine according to the present invention, since the ridge rings that are axially different from each other are arranged on each peripheral surface of each paper folding roller, they are formed on one peripheral surface. Since the ridge rings formed on the other peripheral surface correspond to each other between the ridge rings and rotate at the same peripheral speed, the paper is clamped by the peripheral surfaces of the ridge rings. Partially folded.

Therefore, the folded surface of the folded paper is surely folded, falls on the valley-shaped bottom of the receiving box, and the stacking of a large number of sheets in a V-shape is extremely good.

Further, since the circumferential speeds of the ridge rings of the paper folding rollers are the same, no slippage occurs at the time of paper folding, a sufficient discharging speed of the folded paper is given, and the sheets are reliably stacked.

Further, in the embodiment excluding FIG. 5A, since each paper folding roller is composed of a part that contacts each other and a part that does not contact each other, the folds of the paper are completely folded and non-folded. This non-folded part has a restoring force with sufficient elasticity, so when it opens in a V shape and is piled up on the valley bottom of the receiving box, it does not cause a stacking error. All are stacked in a V-shaped open state.

Further, in the case of the embodiment shown in FIG. 5A, in particular, the paper is folded gently and a paper fold having a strong restoring force can be obtained.

f. Embodiment Hereinafter, a preferred embodiment of the paper folding machine according to the present invention will be described in detail with reference to the drawings.

FIGS. 1 to 7 are for showing a paper folding machine according to the present invention. FIG. 1 is an overall configuration diagram, FIG. 2 is an enlarged configuration diagram showing a main part of FIG. 1, and FIG. Is a block diagram showing another embodiment of the main part of FIG. 1, FIG. 4 is an enlarged plan view showing the main part of FIG. 1, FIG. 5 is an enlarged view of the main part of FIG. 4, and FIG. 5B is a plan view of an essential part showing another embodiment, and FIGS. 6 and 7 are plan views showing another embodiment of the configuration of FIG.

The same or equivalent parts as those of the conventional example will be described with the same reference numerals.

In the figure, reference numeral 6 is a sheet feeding base plate configured to be vertically movable by a handle 7 provided on the frame body 7A. 5 are stacked and provided.

A feeding roller 8 is provided above the paper feeding base plate 6, and first and second paper folding rollers 2a and 2b having a feeding function are formed as a pair at a position adjacent to the feeding roller 8. The first and second paper folding rollers 2a and 2b arranged in a horizontal state rotate in opposite directions, and
The friction member 20 and the gear member as the friction member 20 to each other
Contact through 22.

At the end of the first paper folding roller 2a, a pulley 9 having a diameter larger than that of the first paper folding roller 2a is coaxially provided, and the pulley 9 is attached to the frame 7A. It is connected to the drive pulley 11 of the drive motor 10 via the belt 12.

Further, above the folding roller 2a, the pressing roller 3
Is rotatably provided, the pressing roller 3 is joined to the first paper folding roller 2a, and a guide path for guiding the fed paper 5 is provided above the second paper folding roller 2b.
4a is provided, and a stopper body 4 having a stopper 4b for stopping the movement of the paper 5 is provided. The stopper 4b is provided with an adjusting screw 13 for adjusting the stop position of the paper 5. It is provided.

At the lower position just below the paper folding rollers 2a and 2b,
A holding box 15 having a V-shaped valley bottom 14a is provided on a holding bar 15, and a guide projection 14b of the receiving box 14 is provided on the holding bar 1.
By being able to slide in the guide hole 15a formed in 5, the receiving box 14 can be selectively moved to two positions shown by a solid line and a dotted line in FIG.

A holding plate 16 is provided between the receiving box 14 and each of the paper folding rollers 2a and 2b, and a pair of antistatic devices 17 are provided on both sides of the holding plate 16 and Antistatic device
An opening 18 for passing the paper 5 is formed between the portions 17.

Further, the pair of paper folding rollers 2a and 2b described above are arranged in the fourth
As shown in FIG. 5 and FIG. 5, friction members 20 made of rubber, tape, or the like are formed in a ring shape at both ends thereof, and these friction members 20 are in contact with each other.
The friction members 20 are configured to be rotatable with respect to each other.

On the peripheral surfaces 2aA and 2bA of the paper folding rollers 2a and 2b, a plurality of ridge rings 21 and 21A made of a friction material such as rubber are provided.
Are formed at predetermined intervals along the axial direction, and the ridge rings 21 formed on the first paper folding roller 2a and the ridge rings 21A formed on the second paper folding roller 2b are It is arranged so as to be in mutually different positions in the axial direction, that is, in mutually different states.

FIG. 5 is an enlarged view of the respective ridge rings 21 and 21A in FIG. 4, one ridge ring 21 is located between the other ridge rings 21A, and each edge portion 21b is located. The rib rings 21 and 21A are in contact with each other by the contact of the rib rings 21 and 21Aa.

Therefore, the operation of folding the paper by the paper folding rollers 2a, 2b is performed in a state where the paper is nipped by the edge portions 21b, 21Aa.

Further, in the configuration shown in FIG. 5A, each ridge ring 21, 21A is configured to be in a non-overlapping state with each other in the direction orthogonal to the axial direction, and in the configuration shown in FIG. 5B, each ridge ring. 21,21A is configured to be in a state of being overlapped with each other in a direction orthogonal to the axial direction, and in any case, the paper is partially folded and is configured to be folded with a proper restoring force. There is.

Incidentally, even if one of the above-mentioned friction members 20 is made of metal or plastic and the like, and as a result, a combination of metal or plastic and rubber is obtained, the same effect can be obtained. Further, even when each of the friction members 20 is made of metal and has a rough surface, the same effect can be obtained.

In another embodiment shown in FIG. 6, a gear member 22 as the friction member 20 is used.

FIG. 7 shows the structure of another embodiment in which the respective paper folding rollers 2a and 2b are independently rotated in a non-contact state via rollers (not shown) and the like in opposite directions.

The paper folding machine according to the present invention is configured as described above, and its operation will be described below.

First, as shown in FIG. 1, when the drive motor 10 is operated in a state in which the sheets 5 are stacked, the feeding roller 8, the sheet folding rollers 2a and 2b, and the pressing roller 3 simultaneously start to rotate.

In this case, each paper folding roller is faster than the peripheral speed of the feeding roller 8.
The peripheral speed ratio is set so that the peripheral speeds of 2a and 2b are faster.

The paper 5 delivered by the delivery roller 8 is transferred to the pressing roller 3
And the first paper folding roller 2a send the paper 5 to the stopper body 4 through the guide passage 4a, and the leading end of the paper 5 is stopped by the stopper body 4a.
When the sheet abuts against the stopper 4b of the sheet and the feeding is stopped, the central portion of the sheet bends downward and is sandwiched between the circumferential surfaces of the ridge rings 21 and 21A of the first sheet folding roller 2a and the second sheet folding roller 2b. Sent down.

In the above-mentioned case, since the ridge rings 21 and 21A are rotating at the same peripheral speed, the folding surface of the paper 5 is partially sharply folded without any phenomenon such as sagging, and the paper 5 is folded. In this state, the paper folding rollers 2a, 2b fall directly into the receiving box 14 and are stacked vigorously on the valley bottom 14a of the receiving box 14 in a correct posture.

Further, in the above-mentioned case, the paper 5 is fed by the width between the friction members 20.
It is sent within width P ₁ which is smaller than P ₂ .

The folded paper 5 sent downward as described above
After the static electricity is removed by the static eliminator 17, they are stacked on the valley-shaped bottom portion 14a of the receiving box 14 in a V-shaped open state.

When a predetermined number of sheets of paper 5 are piled up, the operation of the drive motor 10 is stopped and the receiving box 14 is pulled by hand, so that the receiving box 14 moves from the position indicated by the solid line to the position indicated by the dotted line. The paper 5 inside can be taken out.

Furthermore, when the gear member 22 is used in place of the friction member 20 as shown in FIG. 6, each of the paper folding rollers 2a and 2b further has each of the paper folding rollers 2a and 2b as shown in FIG.
The same effect can be obtained when the 2b are independently rotated in a non-bonded state.

Further, the configuration shown in FIG. 3 shows another embodiment of the receiving box 14, in which a part of the valley-shaped bottom portion 14a is constituted by an opening / closing bottom portion 14aA made of an elastic material, and when the weight becomes a predetermined weight, As shown by the dotted line in FIG. 3, the open state is reached, and the paper 5 is continuously discharged to the outside.

Further, after the paper 5 is discharged, when the weight of the paper 5 in the receiving box 14 decreases, the opening / closing bottom portion 14aA is configured to restore the original closed state.

Further, the outer peripheral surface 2aA or 2bA of each of the paper folding rollers 2a, 2b.
The distance D between the outer peripheral surface of each of the ridges 21 and 21A differs depending on the paper quality, paper thickness, paper width, atmosphere temperature, humidity, material of the folding roller, surface condition, and folding speed. As a result of the experiment, it was found that the range of about 0.5 to 2.0 mm is most suitable for paper folding.

g. Effect of the Invention Since the paper folding machine according to the present invention is configured as described above, the following effects can be obtained.

(1) Since the peripheral surfaces of the ridge rings of the first paper folding roller and the second paper folding roller rotate at the same peripheral speed, the paper folding surface can be neatly folded without sagging and the valley of the receiving box. When a large number of layers are stacked on the bottom of the shape, the stacked state is formed upright without tilting, and handling after taking out from the receiving box becomes extremely good.

(2) Further, since each ridge ring of each paper folding roller has the same peripheral speed, when the paper is folded by each paper folding roller and stacked on the valley-shaped bottom of the receiving box, the posture in the middle of dropping is maintained. It can be stacked without breaking.

(3) Further, since the paper folding surface of each paper folding roller is actually the edge portion or the peripheral surface of each ridge ring, all the paper folding surfaces are not completely folded and are partially complete. Since the other parts are loosely folded, the restoring force of the paper after folding is maintained by each paper folding roller, and the sheets can be stacked in a V-shaped state.

[Brief description of drawings]

FIGS. 1 to 7 are for showing a paper folding machine according to the present invention. FIG. 1 is an overall configuration diagram, FIG. 2 is an enlarged configuration diagram showing a main part of FIG. 1, and FIG. 1 is a block diagram showing another embodiment of the main part of FIG. 1, FIG. 4 is an enlarged plan view showing the main part of FIG. 1, FIG. 5 is an enlarged view of the main part of FIG. 4, and FIG. 5A. FIG. 5B is a plan view of an essential part showing another embodiment, FIGS. 6 and 7 are plan views showing another embodiment of the construction of FIG. 4, and FIGS. 8 and 9 are conventional drawings. 8 shows a paper folding machine, FIG. 8 is a schematic configuration diagram, and FIG. 9 is a configuration diagram showing a folded state of paper. 2a is a first paper folding roller, 2b is a second paper folding roller, 2aA and 2bA are outer peripheral surfaces, 5 is paper, 14 is a receiving box, 14a is a valley bottom, 2
1, 21A are ridge rings, 21b, 21Aa are edge portions, 20 is a friction member, and 22 is a gear member.

Claims (6)

[Scope of utility model registration request] 1. A fed paper (5) is fed to a stopper body (4) by a first paper folding roller (2a) and a pressing roller (3) located above the first paper folding roller (2a). The first paper folding roller (2a) and the first paper folding roller (2a) are brought into contact with the paper (5) that has stopped moving by contacting the stopper (4b) of the stopper body (4). It is folded in two by two paper folding rollers (2b) and is located directly below the first and second paper folding rollers (2a, 2b) and has a valley bottom (14
In a paper folding machine in which the paper (5) is partially folded in a receiving box (14) having a) and is directly dropped from the paper folding rollers (2a, 2b) to be stacked. Friction members (20) contacting each other are formed at both ends of each of the paper folding rollers (2a, 2b).
The plurality of ridge rings (21, 21A) formed on the respective peripheral surfaces (2aA, 2bA) located between the respective friction members (20) of the paper folding rollers (2a, 2b) are mutually arranged in the axial direction. A paper folding machine, which is arranged at different positions and configured to rotate at the same peripheral speed. 2. A gear member (22) as the friction member (20).
The paper folding machine according to claim 1, wherein the paper folding machine is used. 3. The paper folding rollers (2a, 2b) are joined only at the edge portions (21b, 21Aa) of the ridge rings (21, 21A). Paper folding machine. 4. The paper folding machine according to claim 1, wherein each of the ridge rings (21, 21A) is formed in a non-overlapping state in a direction orthogonal to the axial direction. 5. The paper folding machine according to claim 1, wherein each of the ridge rings (21, 21A) is formed in an overlapping state in a direction orthogonal to the axial direction. 6. An opening (1) for passing the paper (5) between the paper folding rollers (2a, 2b) and the receiving box (14).
Holding plate (1) having an antistatic device (17)
6. The paper folding machine according to any one of claims 1 to 5, further comprising: 6).