JPH0546425U - Paper folding machine - Google Patents

Abstract

(57) [Abstract] [PROBLEM] The present invention relates to a paper folding machine, and in particular, by using a one-way clutch and a pair of engaging bodies, a paper feed roller is intermittently driven with a pure mechanical structure, and a leading paper and a rear paper are fed. It is characterized in that the line paper is prevented from polymerizing. [Structure] The paper folding machine according to the present invention comprises first and second rollers (3, 4) for joining papers (30) sent by a paper feed roller (1) which is rotated by joining with a restraining plate (2). ) To the first tray (7), and the paper (30) is folded by the second roller (4) and the third roller (5) joined to the second roller (4). In the folding machine, the paper feed shaft of the paper feed roller (1)
A first coaxially arranged on (10) via a one-way clutch (11).
A driving body (12), a second driving body (13) provided on the paper feeding shaft (10) via a bearing (14), and a first engaging body formed on the first driving body (12). A second engagement body (17) engaged with (18) and formed on the second drive body (13); and a drive body (19) for rotating the second drive body (13), Each engagement body (17,18)
When not engaged, the paper feed roller (1) is not rotated and the paper feed roller (1) is intermittently rotated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a paper folding machine, and in particular, by using a one-way clutch and a pair of engaging bodies, the paper feed roller is intermittently driven with a pure mechanical structure to prevent the preceding paper and the following paper from overlapping. For new improvements for.

[0002]

[Prior Art]

 There are various types of paper folding machines that have been used in the past, but a typical configuration among them is described.The paper feed roller is equipped with an electromagnetic clutch or spring clutch, and the position of the paper is detected by a sensor. As a result, the paper feed roller is driven intermittently to avoid collision and stacking of the preceding paper and the following paper.

[0003]

[Problems to be solved by the device]

 Since the conventional paper folding machine is configured as described above, there are the following problems. That is, since the sensor is used to drive and control the electromagnetic clutch and the like, the structure is complicated, the reliability is lowered, and the cost is increased.

The present invention has been made to solve the above problems, and in particular, by using a one-way clutch and a pair of engaging bodies, a paper feed roller is intermittently driven with a pure mechanical structure. An object of the present invention is to provide a paper folding machine that prevents the preceding paper and the following paper from overlapping with each other.

[0005]

[Means for Solving the Problems]

 In the paper folding machine according to the present invention, the first and second rollers for joining the papers sent by the paper feed roller which is joined to the restraining plate and rotated to the first tray are fed to the second tray and the papers. In a paper folding machine configured to fold a paper by a third roller joined to the second roller, a first driving body coaxially arranged on a paper feeding shaft of the paper feeding roller via a one-way clutch, and the paper feeding unit. A second driving body provided on the paper shaft via a bearing; a second coupling body formed on the second driving body by engaging with a first engagement body formed on the first driving body; 2) a drive body for rotating the drive body, and when the engagement bodies are not engaged, the paper feed roller is kept in a non-rotated state and the paper feed roller is intermittently rotated. .

[0006]

[Action]

 In the paper folding machine according to the present invention, the driving unit rotates the first to fourth rollers 3 to 6 at a predetermined number of rotations at the same time, and the sheet feeding roller 1 includes the belt 21, the second driving unit 13, and each member. Since it is rotated at a peripheral speed ratio of, for example, 1: 2 via the combining units 17 and 18, the first driving body 12, and the one-way clutch 11, the paper is fed by the paper feed roller 1 and the first and second rollers. When it is bitten by 3 and 4, the feed speed is doubled and the paper feed roller 1 is rotated through the paper at a speed twice that before. Therefore, in the double-speed rotation of the paper feed roller 1, the first drive body 12 is in the forward feed state through the free rotation of the one-way clutch 11, and the first engagement body 18 is forwardly fed in the back direction of the second engagement body 17. As shown in FIG. 4, the engaging bodies 17 and 18 are disengaged in the predetermined angular range A, the second driving body 13 idles by the angular range A, and the sheet feeding roller 1 is stopped during that period. During this stop period, the preceding paper sent to the first tray 7 by the first and second rollers 3 and 4 is folded by the second and third rollers 4 and 5, and the trailing edge of the paper is the first tray. The second engaging body 17 of the second driving body 13, which is rotating at a reduced speed, catches up with the first engaging body 18 at the time of coming out of 7, and the respective engaging bodies 17, 18 are engaged as shown in FIG. The roller 1 rotates and the next succeeding paper is sent to the first tray 7 side. At that time, the preceding paper is sent to the second tray 8 side via the second and third rollers 4 and 5. Therefore, it is possible to reliably prevent the collision and the overlap between the preceding paper and the following paper. Therefore, the sheet feeding roller 1 is driven intermittently, and reliable intermittent driving can be obtained without using a sensor or the like as in the conventional case.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a paper folding machine according to the present invention will be described in detail below with reference to the drawings. 1 to 4 show a paper folding machine according to the present invention, FIG. 1 is a schematic configuration diagram showing the overall configuration, FIG. 2 is a sectional view of an essential part, FIG. 3 is a plan view of an essential part of FIG. It is explanatory drawing which shows the operation state of 4 to 3.

A reference numeral 1 in the drawing is a sheet feeding roller composed of a rubber roller or the like which is joined to the restraining plate 2 and rotates. The upstream side of the sheet feeding roller 1 includes a first roller 3 and a second roller 3. The roller 4, the third roller 5, and the fourth roller 6 are arranged in a substantially T shape and are joined to each other.

A first tray 7 having a first bottom portion 7 a is provided below the first and second rollers 3 and 4, and is located below the second and fourth rollers 4 and 6. Is provided with a second tray 8 having a second bottom portion 8a.

A first driving body 12 is coaxially disposed on a paper feeding shaft 10 having the paper feeding roller 1 through a one-way clutch 11, and the paper feeding shaft 10 is engaged with the first driving body 12 by the one-way clutch 11. The corresponding second driving body 13 is rotatably provided via a bearing 14. A flat spring 11a is provided between the one-way clutch 11 and the paper feed shaft 10 in the axial direction, and the first drive is performed in the free direction of the one-way clutch 11 through the friction of the flat spring 11a. Both the body 12 and the paper feed shaft 10 can rotate.

The paper feed shaft 10 is provided on the frame 16 via the main bearing 10, and the projecting second engagement body 17 formed on the second drive body 13 is the first drive body. It is configured to engage with twelve protruding first engaging bodies 18.

The second driving body 13 is connected via a belt 21 to a pulley 20 of a driving body 19 which is a driving pulley that is rotatably provided on the frame 16 and is directly connected to a motor (not shown). The second driving body 13 is set to a ratio of 0.5, which is half that of the driving body 19 when the rotation speed of the driving body 19 is 1.

Since the second roller 4 is directly connected to the drive shaft 22 of the drive body 19, the peripheral speed ratio between the paper feed roller 1 and each of the rollers 3, 4, 5, 6 is, for example, It is composed of 1: 2.

Next, in the above-described configuration, when the driving body 19 is rotated by the motor, the first to fourth rollers are rotated at the same peripheral speed at the same time, and the paper feeding roller 1 is rotated by the belt 21, It is rotated at a peripheral speed ratio of, for example, 1: 2 via the second drive body 13, the respective engagement bodies 17 and 18 (engaged state as shown in FIG. 3), the first drive body 12 and the one-way clutch 11. Therefore, when the paper 30 is sent out by the paper feed roller 1 and is bitten by the first and second rollers 3 and 4, the speed of each roller 3 and 4 is set to double the speed of the paper feed roller 1. The speed of the paper roller 1 also doubles, and the first driving body 12 advances forward in the same direction as the paper feed roller 1 at double speed due to the friction of the flat spring 11a through the free state of the one-way clutch 11. To be done.

Therefore, the first engagement body 18 of the first drive body 12 is advanced by a predetermined angle A as shown in FIG. 4, and the engagement bodies 17 and 18 are brought into the non-engagement state. At A 2, only the second driving body 13 idles, and the first driving body 12 and the sheet feeding roller 1 are stopped. Therefore, in this angle range A, the paper feed roller 1 does not rotate, and intermittent feeding of the paper feed roller 1 can be achieved. The angle range A described above can be arbitrarily set by arbitrarily setting the relative positions of the engagement bodies 17 and 18.

In the above-mentioned state, when the second driving body 13 and the rollers 3, 4, 5, 6 continue to rotate, one end of the paper 30 collides with the first bottom 7 a of the first tray 7, and the other end side It is sandwiched by the rollers 4 and 5 and folded, and is sent to the second tray 8.

At the timing when one end, which is the end of the paper 30, is completely ejected from the first tray 7, the idle rotation of the second drive body 13 advances, and the second engagement body 17 catches up with the first engagement body 18. Then, since they engage again as shown in FIG. 3, the paper feed roller 1 rotates again to feed the next succeeding paper.

The trailing paper fed by the paper feed roller 1 is sent to the first tray 7 by the rollers 3 and 4. At this time, the preceding paper 30 is completely fed from the first tray 7. Since the trailing paper does not collide with the preceding paper, it is possible to avoid the polymerization.

Next, the preceding sheet 30 in the once-folded state sent by each of the rollers 4 and 5 is sent to the second tray 8 and collides with the second bottom portion 8a, and then the upper end of each sheet 30 is applied to each roller. After being folded at 4, 6, they are fed above the fourth roller 6 in a folded state of twice.

Therefore, by repeating the above operation, the sheets can be folded one after another without colliding with each other and without overlapping with each other. In addition, in the above-mentioned embodiment, the case of double folding has been described, but it can be folded once.

[0021]

[Effect of the device]

 Since the paper folding machine according to the present invention is configured as described above, the following effects can be obtained. That is, since the paper feed roller is driven intermittently via each engaging body and the one-way clutch, it is not necessary to adopt an electrical configuration such as a sensor or an electromagnetic clutch as in the conventional case, and the configuration is purely mechanical. Therefore, improvement in reliability and cost reduction can be easily achieved.

[Brief description of drawings]

FIG. 1 is a schematic view of a paper folding machine according to the present invention.

FIG. 2 is an enlarged sectional view showing a main part of FIG.

FIG. 3 is a front view showing an engaged state of each engaging body in the main part of FIG.

FIG. 4 is a front view showing a non-engaged state of each engagement body of FIG. 3;

[Explanation of symbols]

 1 Feeding Roller 2 Suppression Plate 3 1st Roller 4 2nd Roller 5 3rd Roller 7 1st Tray 10 Feeding Shaft 11 One-way Clutch 12 1st Driving Body 13 2nd Driving Body 14 Bearing 17 2nd Engaging Body 18th 1 Engagement body 19 Driving body 30 Paper

Claims (1)

[Scope of utility model registration request] 1. A first tray with first and second rollers (3, 4) for joining together papers (30) sent by a paper feed roller (1) which is joined to a restraining plate (2) and rotates. In the paper folding machine, the paper is fed to (7) and the paper is folded by the second roller (4) and the third roller (5) joined to the second roller (4). A first driving body (12) coaxially arranged on the paper feed shaft (10) of the paper roller (1) via a one-way clutch (11), and a bearing (14) on the paper feed shaft (10). Second drive provided
(13) and the first engagement body (1) formed on the first driving body (12).
Second engaging body formed on the second driving body (13) by engaging with 8)
(17) and a driving body for rotating the second driving body (13)
(19) and, each of the engagement body (17, 18) when not engaged,
A paper folding machine characterized in that the paper feed roller (1) is not rotated and the paper feed roller (1) is intermittently rotated.