JPH072418A - Folding method and folder - Google Patents

Abstract

PURPOSE:To automate the folding work by making the feeding speed of the upper paper sheet body of folding paper sheet faster than the feeding speed of the lower paper sheet body, to form a gap in the free end part between the upper paper sheet body and the lower paper sheet body, and by inserting an other paper sheet body into the gap. CONSTITUTION:The rotation speed of an upper feeding roller 25 becomes faster than that of a lower feeding roller 26 when the connection end 12c of a folding paper sheet 12 reaches a specified point while the folding paper sheet 12 is sandwiched between the upper feeding roller 25 and the lower feeding roller 26. The roller 25 is stopped, and only the upper feeding roller 25 gives feeding force only to an upper paper sheet body 12a, while the upper paper sheet body 12a is raised from a lower paper sheet body 12b, leaving a gap between the free end parts 12d of the upper paper sheet and the lower paper sheet. Another paper sheet body 13 is fed between the upper paper sheet body 12a and the lower paper sheet body 12b, and it is detected by a detection sensor 30 that the front end part is reached. The work of inserting another paper sheet body 13 into a folding paper sheet 12 is thus automated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of inserting another sheet into a folded sheet having an upper sheet and a lower sheet having one end connected to each other, and a folding machine therefor.

[0002]

2. Description of the Related Art This type of folding operation is indispensable, for example, in a laminating machine. Laminating machine inserts another paper sheet (for example, commuter pass) to be protected into a transparent folded paper (pack type laminating film) with one end folded or joined and heats it as it is. Attach the laminated film to the front and back of.
In this laminating machine, conventionally, another paper sheet insertion operation has been performed manually.

[0003]

OBJECTS OF THE INVENTION It is an object of the present invention to provide a method and a device that can automate this folding operation. In particular, it is an object of the present invention to obtain a folding machine which has a simple structure and can be sufficiently attached to a small-sized laminating machine.

[0004]

SUMMARY OF THE INVENTION According to the present invention, another paper sheet is inserted from a free end side of the folded paper into a folded paper having an upper paper sheet and a lower paper sheet having one end connected to each other. And a step of conveying the folded paper with its connecting end forward, and setting the feeding speed of the upper paper sheet of this folded paper to be faster than the feeding speed of the lower paper sheet, Having a step of forming a gap between the free ends of the paper sheet and the lower paper sheet, and a step of inserting the other paper sheet into the gap between the upper paper sheet and the lower paper sheet. Is characterized by.

Further, according to the present invention, a folded sheet having an upper sheet and a lower sheet which are connected to each other at one end thereof is conveyed by the conveying means and the conveying end is conveyed by the conveying means. Stopping means for stopping the movement of the connection end of the folded sheet and the feeding speed of the stopped upper sheet of the folded sheet are made higher than the feeding rate of the lower sheet of paper so that the upper sheet of paper and the lower sheet of paper are not in contact with each other. An upper paper sheet feeding roller for forming a gap between free ends of the paper sheet, and a feeding means for feeding another paper sheet between the upper paper sheet feeding roller and the lower paper sheet. Is characterized by.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments. FIG. 7 is a side view showing the entire folding machine 11 to which the present invention is applied. The folding machine 11 is attached to a laminating machine (not shown), and supplies the folded paper 12 in which the paper sheet 13 is folded into the laminating machine. The folding machine 11 has an upper feed roller (upper paper sheet) at the front. A folding portion 15 having a feeding roller 25 and a lower feeding roller (lower sheet feeding roller) 26, and the folded sheet 12 and the sheet 13 (FIG. 4) are fed to the folding portion at the rear. The first and second supply units 16 and 17 are provided.

The paper sheet 13 is a sheet to be protected, for example, a commuter pass made of ordinary paper material.
The folded paper 12 is a transparent or semitransparent pack-type laminated film in which a special adhesive is applied to the surfaces of the upper paper sheet 12a and the lower paper sheet 12b that face each other. This adhesive is dry in a normal state, and when the upper paper sheet 12a and the lower paper sheet 12b are thermocompression-bonded and cured, the paper sheet 13 is sandwiched between the upper paper sheet 12a and the lower paper sheet 12a. The side sheets 12b are adhered to each other.

The first supply section 16 constitutes a feeding means for feeding the paper sheet 13 between the upper feed roller 25 and the lower paper sheet 12b shown in FIG. The first delivery roller 2 rotatably supported by the rotating shaft 21a for delivering the formed sheet material 13 toward the folding portion 15.
Have one. The paper sheet 13 delivered by the first delivery roller 21 is guided by a delivery guide 22 fixed to the main body panel 14. The front end portion of the delivery guide 22 allows the paper sheet 13 to be fed between the upper feed roller 25 and the lower feed roller 26, and between the delivery guide 27 located below, the folded sheet 12 is fed.
The shape is determined so that the moving space can be formed.

The second supply unit 17 located below the first supply unit 16 has a second delivery roller 23 rotatably supported by a rotary shaft 23a. The folded paper 12 sent out by the second sending roller 23 is the main body panel 2
With the above-mentioned delivery guide 27 fixed to 4, the connecting end 1
2c (FIG. 1) is guided forward, and is conveyed toward the folding portion 15 side. In addition, the upper feed roller 25, the lower feed roller 26, and the first and second delivery rollers 21 and 23.
At least their peripheral surfaces are each made of a material having a relatively large friction coefficient such as a rubber material.

The folding part 15 is an upper feed roller 25, which is a conveying means for conveying the folded paper 12 with its connecting end 12c forward, and the folded paper 12 is sandwiched between the upper feed roller 25 and the upper feed roller 25. It has a lower feed roller 26. The upper feed roller 25 is arranged so as to form a slight gap with the lower feed roller 26, and when the lower feed roller 26 rotates, the upper feed roller 25 is rotationally driven in the opposite direction to the roller 26 to return the folded paper. 12 is conveyed forward (left in FIG. 7).

When the connection end 12c (FIG. 1) of the folded paper 12 reaches a predetermined position with the folded paper 12 being sandwiched between the folded paper 12 and the lower feed roller 26, Rotation speed (feed speed) is lower feed roller 2
Be done earlier than 6. In this embodiment, the connection ends 12c of the folded paper 12 are provided by the upper and lower paper sheet feeding rollers 25 and 26.
This roller 26 is stopped at the time point when is reached to a predetermined position, whereby the feed speed of the upper feed roller 25 is made faster than that of the lower feed roller 26. Therefore, the upper feed roller 25 applies a feeding force only to the upper paper leaf 12a of the folded folded paper 12, and the upper paper leaf 12a is turned up against the lower paper leaf 12b.
A gap can be created between the free ends 12d of both.

The lower feed roller 26 also constitutes the above-mentioned conveying means, and also constitutes a stop means for stopping the forward movement of the folded sheet 12 by the frictional force when the rotational drive is stopped.

The folding portion 15 has a connection end detecting sensor 29.
A front end detection sensor 30 adjacent to the connection end detection sensor 29 on the front side in the transport direction, and a control unit 18 such as a microcomputer for stopping the movement of the folded paper 12 based on the detection of the connection end detection sensor 29. Have The connection end detection sensor 29 includes upper and lower paper sheet feeding rollers 25, 2.
The front end portion detection sensor 30 detects the arrival of the connection end 12c of the folded paper 12 conveyed by 6 and is fed and sandwiched between the upper paper sheet 12a and the lower paper sheet 12b of the folded paper 12. The arrival of the front end of the sheet material 13 in the transport direction is detected. The control unit 18 detects the arrival detection signal of the front end portion of the paper sheet 13 by the front end detection sensor 30 based on the detection signal.
5 and the lower feed roller 26 are rotated at the same speed, and both the upper paper sheet 12a and the lower paper sheet 12b of the folded paper 12 sandwiched between the two are conveyed forward.

Further, the control unit 18 includes a connection end detection sensor 2
9, a front end detection sensor 30, an upper feed roller 25, and a lower feed roller 26, a first feed roller 21 and a second feed roller 23 are connected to feed the folded paper 12 and the paper sheet 13 to the upper side. The rollers 25 and the lower feed roller 26 are controlled to be conveyed to the folding section 15 in synchronism with the operations of the rollers 25 and the lower feed roller 26, and further fed out to the laminating machine (not shown).

The above-mentioned main folding machine 11 operates as follows. That is, when a start switch (not shown) is turned on, power is supplied to the control unit 18 and the connection end detection sensor 29 and the front end detection sensor 30 start detection, and the upper feed roller 25 and the lower feed The rollers 26 start rotating in opposite directions at the same speed. In this state, the second delivery roller 23 is rotationally driven to supply one sheet of folded paper 12 from the second supply unit 17 to the folding unit 15 side via the delivery guide 27. Then, the folded paper 12 sandwiched between the upper feed roller 25 and the lower feed roller 26 applies the feeding force from the rollers 25 and 26 to the upper paper sheet 12a and the lower paper sheet 12b. It is evenly received and conveyed forward.

When the connection end 12c of the folded paper 12 reaches the position corresponding to the connection end detection sensor 29 (FIG. 1), the detection sensor 29 detects the arrival of the connection end 12c and outputs the detection signal. Output to 18. Then, the control unit 18 outputs a stop signal based on the detection signal,
The lower feed roller 26 stops its rotation. Therefore, the carrying force for the folded paper 12 is substantially eliminated, and the upper feed roller 25 that continues to rotate in the same direction flips up the upper paper sheet 12a of the folded paper 12 (FIG. 2).
Furthermore, since the upper feed roller 25 continues to rotate in the same direction, the rotation of the upper feed roller 25 and the upper paper sheet 12a
The upper paper sheet 12a is lifted onto the upper feed roller 25 in cooperation with the waist of the sheet (FIG. 3). At this time, there is a slight gap between the upper feed roller 25 and the lower paper sheet 12b, or the lower feed roller 26 is larger than the frictional force when the lower paper sheet 12b contacts the upper paper feed roller 25. The lower paper sheet 12b is not turned up by the rotating upper feed roller 25 because it is held by the frictional force.

Then, based on a signal from the controller 18, the first delivery roller 21 is rotationally driven at a predetermined timing,
One sheet 13 is delivered from the first supply unit 16, and the upper sheet 12a and the lower sheet 12 are delivered via the delivery guide 22.
It is fed between the free ends 12d of b, that is, between the upper feed roller 25 and the lower paper sheet 12b (FIG. 4). During this time as well, the upper feed roller 25 continues to rotate in a non-contact or contact state with the lower paper sheet 12b, and maintains the state in which the upper paper sheet 12a is lifted.

When the fed paper sheet 13 comes into contact with the upper feed roller 25 and begins to receive the feed force, the lower paper sheet 13 is prevented from moving forward by the frictional force of the lower feed roller 26 that has stopped. Slide on 12b and move forward (Fig. 5). When the front end detection sensor 30 detects that the paper sheet 13 has reached the front end connection end 12c, the control unit 18 based on this outputs a drive signal to the lower feed roller 26, and the roller 26 is driven. The upper feed roller 25 is rotated in the opposite direction at the same speed.

Therefore, the folded paper 12 is the upper feed roller 2
5, the connection end 12c is pressed in the same direction by the paper sheet body 13 moving forward in response to the feed force of 5, and the paper sheet body receives the feed force of the lower feed roller 26 on the back surface of the lower paper sheet 12b. It moves toward the front while holding 13 (FIG. 6). Further, the folded paper 12 is supplied to a laminating machine and then thermocompression-bonded from above and below to be cured, and the upper paper sheet 12a and the lower paper sheet 12b are adhered to each other with the paper sheet 13 sandwiched therebetween. .

Thus, the folding machine 11 according to the present invention,
Further, according to the folding method using the folding machine 11, the work of inserting another sheet 13 into the folded sheet 12 and folding it can be automated. Moreover, the folding machine 1
1 can be realized with a simple structure, and can be a folding machine that can be sufficiently attached to a small-sized laminating machine.

In the first embodiment described above, the upper feed roller 25 and the lower feed roller 26 are arranged so as to face each other.
The lower feeding roller 2 has
Instead of 6, a belt moving body 31 in which an endless belt 35 having a relatively large friction coefficient such as a rubber material is stretched is provided between a pair of feed rollers 32 and 33, and the upper feed roller 25 and the belt moving body 31 are provided. A second embodiment in which the conveying means is constituted by will be described with reference to FIGS.

One of the feed rollers 32 and 33 is a drive roller which is driven by the rotational force of a motor (not shown),
The other is a driven roller that receives the rotation of the drive roller via the endless belt 35. The configuration of the second embodiment is the same as that of the first embodiment except that the belt moving body 31 is replaced by the lower feed roller 26. The belt moving body 31 is the lower feed roller 26 of the first embodiment.
Similarly to the above, the transport means is configured, and the stop means for stopping the forward movement of the folded paper 12 by the frictional force when the rotational drive is stopped is configured.

First, when the start switch is turned on, the connection end detection sensor 29 and the front end detection sensor 30 start detection, and the upper feed roller 25 and the belt moving body 31 are rotationally driven in the opposite directions at the same speed, Second supply unit 1
A uniform feeding force is applied to the top and bottom of the folded paper 12 fed from the 7 side, and the folded paper 12 is conveyed forward. And the connection end detection sensor 2
When 9 detects the arrival of the connection end 12c of the folded paper 12 (FIG. 8), the control unit 18 stops the rotational drive of the belt moving body 31, so that the conveying force for the folded paper 12 is substantially eliminated, and the same direction is applied. The upper feed roller 25, which continues to rotate, flips up the upper sheet 12a (FIG. 9).
Further, the upper feed roller 25 continues to rotate in the same direction, whereby the upper paper sheet 12a is lifted onto the upper feed roller 25 (FIG. 10).

In this state, the paper sheet 13 is provided between the upper feed roller 25 and the free end 12d of the lower paper sheet 12b.
Is sent from the first supply unit 16 side at a predetermined timing (FIG. 11). This paper sheet 13 is provided on the upper feed roller 2
When the sheet 5 comes into contact with the sheet 5 and begins to receive the feeding force, it slides on the lower sheet 12b, which is prevented from moving forward by the frictional force of the endless belt 35 that is stopped, and moves forward (FIG. 12). When the front end detection sensor 30 detects that the front end of the paper sheet 13 has reached the connecting end 12c, the control unit 18 rotates the lower feed roller 26 in the opposite direction to the upper feed roller 25 at the same speed. Therefore, the folded paper 12 is pushed in the same direction at the connection end 12c by the paper sheet body 13 which moves forward by receiving the feed force of the upper feed roller 25, and at the same time, the lower paper sheet body 12b.
Since the feeding force of the belt moving body 31 is received on the back surface of the sheet, the sheet body 13 moves forward with the sheet body 13 sandwiched (see FIG.
3). Then, the paper sheet 13 is sent toward the laminating machine, as in the first embodiment.

Next, instead of the lower feed roller 26 and the belt moving body 31 which are driven by themselves, the smooth surface 36 is folded back between the upper feed roller 25 and a position facing the upper feed roller 25. A third embodiment in which a gap is formed to be smaller than the thickness of the paper 12 and the conveying means is constituted by the upper feed roller 25 and the smooth surface 36 will be described with reference to FIGS.

In the third embodiment, the smooth surface 36 has an advancing / retracting hole 36a for advancing / retreating the stopper 37 as a stopping means at a position corresponding to the connecting end detecting sensor 29. The stopper 37 enters the advancing / retreating hole 36a based on a signal from the control unit 18 and projects onto the smooth surface 36 when or before the connection end detection sensor 29 detects the arrival of the connection end 12c of the folded paper 12. , The connection end 12c is brought into contact, and the forward movement of the folded paper 12 is stopped. The stopper 37
Is moved into and out of the advancing / retreating hole 36a by operating means such as a solenoid and a motor which are turned on / off based on a signal from the control unit 18.

Then, similarly to the above, the connection end detecting sensor 29
When the upper end feed roller 25 is rotated clockwise in FIG. 14 after the detection by the front end detection sensor 30 is started, the folding portion 1 is inserted between the upper end feed roller 25 and the smooth surface 36.
When the folded paper 12 is fed from the 5 side, the upper paper sheet 12
Since the feeding force is applied to a by the upper feeding roller 25 and the lower paper sheet 12b slides on the sliding surface 36, the folded sheet 1
2 is conveyed forward. After that, when the connection end detection sensor 29 detects the arrival of the connection end 12c (FIG. 14),
Since the control unit 18 causes the stopper 37 to project onto the smooth surface 36, the folded paper 12 is stopped from moving, and the upper feed roller 25 that continues to rotate in the same direction is used to move the upper paper 12
You can flip up a (Fig. 15). Further, by the upper feed roller 25 continuing to rotate in the same direction, the upper paper sheet 12a is lifted onto the upper feed roller 25 (FIG. 16).

Then, when the paper sheet 13 is fed from the first feeding section 16 side at a predetermined timing between the upper feed roller 25 and the free end portion 12d of the lower paper sheet 12b (FIG. 1).
7) The paper sheet 13 slides on the lower paper sheet 12b, which is prevented from moving forward by the stopper 37, and moves forward (FIG. 18). Further, when the front end detection sensor 30 detects that the front end of the paper sheet 13 has reached the connection end 12c, the control unit 18 based on this detects the stopper 37 from the smooth surface 36 and releases the folded paper 12. Therefore, the folded paper 12 is pushed toward the laminating machine in a state in which the connection end 12c is pushed in the same direction by the paper sheet body 13 moving forward by the feeding force of the upper feed roller 25, and the paper sheet body 13 is sandwiched. Move (Fig. 19).

In each of the first and second embodiments described above, the speed difference between the lower feed roller 26 and the belt moving body 31 is stopped so that the speed difference with the upper feed roller 25 is produced. The upper paper sheet 12 of the folded paper 12
Since the feeding speed of a is higher than the feeding speed of the lower paper sheet 12b, the lower feeding roller 26 and the belt moving body 31 are not stopped but are rotated relatively slower than the upper feeding roller 25. Can be realized by

In the first, second, and third embodiments, the folded paper 12 is a laminated film, and a normal commuter pass or the like is provided between the folded paper 12 between the upper paper sheet 12a and the lower paper sheet 12b. However, the present invention is not limited to this, and for example, an ordinary paper material folded in two is used as the folded paper 12, and the laminated postcard capable of delamination is used as the paper sheet 13. Can be used to fold the laminated postcard into the above-mentioned folded paper material. In that case, the laminated postcards that can be delaminated are attached by thermocompression to the inner surfaces of the upper and lower sheets, respectively, which form the folded paper material, and the laminated postcards are attached. As a result, both paper sheets will be in close contact with each other, so you cannot see the text written between both paper sheets during mailing, but if you peel off the paper sheets after delivery, you can see the text above. it can.
In such a configuration, since the folded two-fold paper material for sandwiching the laminated postcard is not transparent, the sensor for detecting the front end portion or the like has a connecting end used in the first, second, and third embodiments. A structure different from that of the detection sensor 29 and the front end detection sensor 30 is used.

Further, according to the present invention, in addition to the case where the paper sheet 13 is folded into the above-mentioned folded paper 12 and the case where the delaminated postcard which can be peeled off is folded into the usual paper material folded in two, the advertisement is folded into the newspaper. It can also be used in cases such as.

[0032]

As described above, according to the folding method and the folding machine of the present invention, the work of inserting another sheet into the folded sheet can be automated. Moreover, the folding machine can be realized with a simple configuration, and can be a folding machine that can be sufficiently attached to a small-sized laminating machine.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a state in which a folded sheet is conveyed by a folding section in a first embodiment of the present invention.

FIG. 2 is a schematic side view showing a state in which only the upper sheet of folded paper is fed by the folding section.

FIG. 3 is a schematic side view showing a state in which an upper paper sheet of folded paper is turned up by the folding section.

FIG. 4 is a schematic side view showing a state in which another paper sheet is fed between the free end portions of the upper paper sheet and the lower paper sheet of the same folded sheet.

FIG. 5 is a schematic side view showing a state in which another paper sheet inserted between the upper paper sheet and the lower paper sheet of the folded sheet is conveyed.

FIG. 6 is a schematic side view showing a state in which another paper sheet inserted between an upper paper sheet and a lower paper sheet of the folded paper is conveyed together with the folded paper.

FIG. 7 is a side view showing the entire folding machine to which the present invention is applied.

FIG. 8 is a schematic side view showing a state in which a folded sheet is conveyed by a folding section according to a second embodiment of the present invention.

FIG. 9 is a schematic side view showing a state in which only the upper sheet of folded paper is fed by the folding section.

FIG. 10 is a schematic side view showing a state in which an upper paper sheet of folded paper is turned up by the folding section.

FIG. 11 is a schematic side view showing a state in which another paper sheet is fed between the free end portions of the upper paper sheet and the lower paper sheet of the folded sheet.

FIG. 12 is a schematic side view showing a state in which another paper sheet inserted between the upper paper sheet and the lower paper sheet of the folded sheet is conveyed.

FIG. 13 is a schematic side view showing a state in which another paper sheet inserted between an upper paper sheet and a lower paper sheet of the folded paper is conveyed together with the folded paper.

FIG. 14 is a schematic side view showing a state in which a folded sheet is conveyed by a folding section according to a third embodiment of the present invention.

FIG. 15 is a schematic side view showing a state in which only the upper sheet of folded paper is fed by the folding section.

FIG. 16 is a schematic side view showing a state in which an upper paper sheet of folded paper is turned up by the folding section.

FIG. 17 is a schematic side view showing a state in which another paper sheet is fed between the free ends of the upper paper sheet and the lower paper sheet of the folded sheet.

FIG. 18 is a schematic side view showing a state in which another paper sheet inserted between the upper and lower paper sheets of the folded sheet is conveyed.

FIG. 19 is a schematic side view showing a state in which another paper sheet inserted between the upper paper sheet and the lower paper sheet of the folded paper is conveyed together with the folded paper.

[Explanation of symbols]

11 Folding Machine 12 Folded Paper 12a Upper Paper Leaf 12b Lower Paper Leaf 12c Connection End 12d Free End 13 Paper Leaf 15 Folding Part 16 First Supply Part (Feeding Means) 17 Second Supply Part 18 Control Part 20 22 Delivery guide 21 First delivery roller 23 Second delivery roller 25 Upper (paper sheet) feed roller (conveying means) 26 Lower (paper sheet) feeding roller (conveying means, stopping means) 27 Delivery guide 29 Connection end detection sensor 30 front end detection sensor 31 belt moving body (conveying means, stopping means) 32 33 feed roller 35 endless belt 36 smooth surface 36a advancing / retreating hole 37 stopper (stopping means)

Claims (5)

[Claims] 1. A method in which another paper sheet is inserted into a folded paper sheet having an upper paper sheet and a lower paper sheet, one end of which is connected, from the free end side of the folded paper sheet and then folded. And the step of transporting the folded paper sheet with its connection end forward; the feed speed of the upper paper sheet of the folded paper sheet is made higher than the feed speed of the lower paper sheet, and the folded paper sheet is conveyed to the upper paper sheet. A step of forming a gap between the free ends of the lower sheet and the step of inserting the above-mentioned another sheet into the gap between the upper and lower sheets. How to insert 2. Conveying means for conveying a folded sheet having an upper paper sheet and a lower paper sheet, one end of which is connected, with its connecting end forward, and a folded paper sheet conveyed by this conveying means. Stop means for stopping the movement of the connection end of the upper paper sheet and the lower paper sheet by making the feeding speed of the upper paper sheet of the stopped folded paper faster than that of the lower paper sheet. An upper paper sheet feed roller for forming a gap between the free ends of the sheet; and a feeding means for feeding another paper sheet between the upper paper sheet feed roller and the lower paper sheet. And folding machine. 3. The conveying means according to claim 2, wherein the conveying means includes an upper paper sheet feeding roller and a lower paper sheet feeding roller for sandwiching the folded sheet between the upper paper sheet feeding roller. Folding machine. 4. The conveying means according to claim 2, comprising an upper paper sheet feeding roller and a belt moving body in which an endless belt is stretched between a pair of feeding rollers, and the upper paper sheet feeding roller is A folding machine located between a pair of feed rollers. 5. The folding machine according to claim 2, wherein the conveying means includes an upper paper sheet feeding roller and a folded paper conveying surface having a smooth surface.