JP5277395B2 - Paper feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily correct, when a difference is caused in progress between the right side and the left side of a section bundle placed on a carrier belt in a section feeder, the difference by manual work without using an electromagnetic clutch. <P>SOLUTION: A rotational driving shaft 2 is provided with: a plurality of one-way driving pulleys 5-8; and a plurality of downstream side carrier belt driving pulleys 19-22. Downstream side carrier belt pulleys 27-30 corresponding to the driving pulleys 19-22 are arranged on a front downstream side carrier belt shaft 31. Upstream side carrier belt pulleys 13-16 corresponding to the one-way driving pulleys 5-8 are arranged on a rear upstream side carrier belt shaft 34. Downstream side carrier belts 23-26 are extended between the respective downstream side carrier belt pulleys and the respective downstream side carrier belt driving pulleys. An upstream side carrier belt is extended between the respective upstream side carrier belt pulleys and the respective one-way driving pulleys. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention is an invention in the technical field of a sheet feeding device that takes out a part of a bundle of sheets, such as an advertisement flyer, in a folded sheet and supplies them.

Conventionally, there are such sheet feeding apparatuses as shown in FIG. 3, FIG. 4, and FIG.
FIG. 3 is a side view in which a sheet bundle having a folded portion is placed on a conveyor belt inclined downward in the conveyance direction. However, the electromagnetic clutch, the drive belt, the worm gear, etc. are omitted. The earliest paper that reaches the support plate 67 is pulled out by the suction pad 57 and is sandwiched between the discharge main driving roller 55 and the discharge driven roller 56 and discharged to the right.
FIG. 4 is a schematic view of FIG. 3 as viewed from above.

FIG. 5 is a top view of the arrangement of the conveyor belt with the sheet bundle 68 of FIG. 4 removed.
The conveyor belt is composed of upstream conveyor belts 9 to 11 and downstream conveyor belts 23 to 26.
When the worm 48 is rotated by a motor (not shown), the worm gear 49 is rotated, and the first drive shaft 52 connected thereto is rotated. The first drive shaft 52 is provided with a first electromagnetic clutch 50 and a second electromagnetic clutch 51.

  A drive belt 58 is hung on the first electromagnetic clutch 50, and the other side of the drive belt 58 is fixedly provided on a second drive shaft 53 supported by bearings 38 and 39. Suspended by the drive pulley 60, the second drive shaft 53 is thereby rotated. An upstream side conveyor belt drive pulley 35 and a downstream side conveyor belt drive pulley 19 are fixedly provided on the shaft, and the upstream side conveyor belt 9 and the downstream side conveyor belt 23 are suspended from the shaft. The other side of the upstream conveyor belt 9 is suspended by an upstream conveyor belt pulley 13 that is rotatably provided on an upstream conveyor belt shaft 34 that is supported by bearings 17 and 18. The other side of the belt 23 is suspended by a downstream conveyor belt pulley 27 provided on a first downstream conveyor belt shaft 62 that is supported by bearings 42 and 43.

As described above, when the first drive shaft 52 rotates while the first electromagnetic clutch 50 is in contact, the upstream conveyor belt 9 and the downstream conveyor belt 23 are simultaneously conveyed in the direction of the arrow.
Similarly, when the first drive shaft 52 rotates while the second electromagnetic clutch 51 is in contact, the third drive shaft 54 supported by the bearings 40 and 41 is rotated by the drive belt 59 and the second drive pulley 61. The upstream conveyor belt drive pulleys 36 and 37 fixed to the shaft, the upstream conveyor belts 10 and 11 and the downstream conveyor belts 24, 25 and 26 suspended from the downstream conveyor belt drive pulleys 20, 21 and 22, respectively. Moves in the direction of the arrow.

  As described above, the upstream conveyor belt 9 and the downstream conveyor belt 23 (right system) driven via the first electromagnetic clutch 50 on the right side, and the upstream conveyor belt 10 driven via the second electromagnetic clutch 51 on the left side. , 11 and the downstream conveyor belts 24, 25, and 26 (left system) have separate drive systems on the left and right. Accordingly, when both electromagnetic clutches are in contact, all the conveyor belts are advanced. However, when one of the electromagnetic clutches is disconnected, the drive system is stopped.

  The reason for this is that when the folded paper is bundled with sheets of flyers 66 and the like placed on the conveyor belt as shown in FIG. A situation occurs in which the left and right sides do not progress in a balanced manner. For example, when the flyer 66 is sandwiched on the right side as shown in FIG. 4A, the left side is delayed and not parallel to the support plate 67 as shown in FIG.

In order to correct this and return it as shown in (a), the right system conveyor belt is stopped and only the left system conveyor belt is conveyed.
When the right side is delayed, the left system conveyor belt is stopped.
In such control, immediately before reaching the support plate 67, the sheet detection sensors 64 and 65 are provided at positions slightly below the sheet bundle conveyance surface and slightly inside the width of the sheet bundle, and the left sheet detection sensor 65 is shown in FIG. When the sheet is not detected as in (b), the first electromagnetic clutch 50 is disengaged to stop the right conveying belt, and only the left conveying belt is conveyed, so that the left side of the sheet bundle is The support plate 67 is brought into contact with the support plate 67. Then, since the paper detection sensor 65 detects the paper, the right first electromagnetic clutch 50 that has been disconnected is brought into contact with each other, and the left and right transport belts are operated.

  On the contrary, if the right side of the sheet bundle 68 is delayed and a gap is formed between it and the support plate 67, the sheet detection sensor 64 will not detect the sheet. Since only the right system is stopped, the right side of the sheet bundle 68 is moved forward so that there is no gap with the support plate 67 and the sheet detection sensor 64 detects the sheet. The electromagnetic clutch 51 is brought back into contact so that both left and right systems are transported.

As described above, the control for disengaging / connecting the second electromagnetic clutch 51 and the first electromagnetic clutch 50 by the paper non-detection / paper detection of the paper detection sensors 64 and 65 is performed by a control circuit (not shown). Patent Document 1).
Japanese Patent No. 3464530 (paragraphs [0027] to [0029], FIGS. 1 and 4).

  As described above, the above-described conventional apparatus corrects the left and right inclinations of the sheet bundle placed on the conveyance belt with respect to the conveyance direction, so that the conveyance operation of the right conveyance belt and the left conveyance belt can be performed in two electromagnetic directions. This is done by disconnecting and engaging the clutch, but there is a problem that this electromagnetic clutch is expensive.

  In addition, when the amount of paper bundles placed on the transport belt is large and a considerable amount is placed on the upstream transport belt, the lower part of the rear paper slides backward on the upstream transport belt. There is also a problem that an avalanche phenomenon as shown in FIG. 6 may occur.

An object of the present invention is to realize a sheet feeding device capable of correcting left and right inclinations by a simple manual operation without using a conventional expensive electromagnetic clutch.
In addition, it is to realize a paper feeding device in which the rear of the sheet bundle on the upstream belt does not cause an avalanche phenomenon.

In order to solve the above-mentioned problems, the present invention has the following means configurations.
The first configuration of the present invention comprises a transport belt that is inclined downward in the transport direction and a support plate having a lower side at a position of a predetermined height from the belt at a belt folding position forward in the transport direction. A paper feeding device that feeds paper by placing the frontmost paper of a bundle of papers placed on a transport belt with the paper surface facing in the transport direction and transported to a support plate one by one from the lower side of the support plate with a suction pad. The conveyor belt includes a plurality of parallel upstream conveyor belts and a plurality of downstream conveyor belts in parallel , and the upstream conveyor belt is rotatably supported on an upstream conveyor belt shaft provided rearward in the conveyance direction. And a one-way clutch provided on a rotary drive shaft that is downstream of the upstream conveyor belt shaft and is driven to rotate by a motor via a one-way clutch that is free to rotate forward. The downstream conveyor belt is suspended between the drive pulley and the downstream conveyor belt is freely rotated between a downstream conveyor belt drive pulley fixed to the rotary drive shaft and a downstream conveyor belt shaft provided forward in the conveyance direction. The sheet feeding device is suspended between a shaft-supported downstream-side conveyor belt pulley.

  The second configuration of the present invention is characterized in that, in the first configuration, irregularities are provided on the surface of the upstream-side transport belt so that the stacked sheet bundle does not avalerate backward from the lower side. Is a sheet feeding device.

According to the above configuration, the downstream conveying belt shaft in the direction orthogonal to the conveying direction is at the leading end of the conveying direction, the rotational driving shaft is parallel to the rear thereof, and the upstream conveying belt shaft is parallel to the rear thereof. A plurality of downstream conveyor belt pulleys are rotatably provided on the downstream conveyor belt shaft.
The rotational drive shaft is provided with a downstream conveyor belt drive pulley fixed to the shaft at a position corresponding to the downstream conveyor belt pulley. A plurality of one-way drive pulleys are provided alternately on the rotary drive shaft with the downstream side conveyor belt drive pulley. The one-way drive pulley is forcibly rotated in the same direction when the rotary drive shaft rotates in the transport direction, but freely rotates when the portion of the one-way drive pulley on which the belt hangs is rotated in the transport direction.

The upstream conveyor belt shaft is provided with an upstream conveyor belt pulley at a position corresponding to the one-way drive pulley.
The downstream conveyor belt is suspended between the downstream conveyor belt pulley and the downstream conveyor belt drive pulley, and the upstream conveyor belt is suspended between the upstream conveyor belt pulley and the one-way drive pulley. Has been.

  Therefore, the upstream side conveyor belt can be pushed forward at a speed higher than the conveyance speed manually even when being conveyed. Of course, it can be pushed forward by hand even when it is not transported.

  With the above-described configuration, when the rotation drive shaft is rotated in the transport direction by the motor, all the upstream and downstream transport belts advance in the transport direction. Therefore, the sheet bundle placed on the belt is fed toward the front support plate and pulled out one by one to be fed.

  In such a paper feeding process, a delay in progress occurs on the left or right side of the sheet bundle due to the flyer or other positions sandwiched between the folded sheets, and the front direction of the sheet bundle is either left or right. When a tilted situation occurs, the rear end of the sheet bundle on the upstream conveying belt is pushed by hand, or the delayed belt among the plurality of upstream conveying belts is manually pushed. By moving forward, the inclination of the sheet bundle can be corrected.

  In this way, there is an effect that the inclination of the sheet bundle progress on the conveying belt can be corrected only by using an inexpensive one-way clutch without using an expensive electromagnetic clutch as in the conventional apparatus.

  The second configuration of the present invention has an effect that the rear portion of the sheet bundle is not avalanche to the rear because the unevenness is provided on the surface of the upstream side conveyance belt. Even in the case where the progress is delayed and the paper is pushed manually, there is an effect that the sheet bundle can be effectively corrected without slipping on the belt.

In practicing the present invention, it is best to alternately provide the one-way driving pulley and the downstream conveying belt driving pulley provided on the rotation driving shaft. Further, it is best that the one-way drive pulley and the downstream-side transport belt drive pulley on the left side and the right side in the transport direction are close to each other.
This is because, when a delay occurs in the left or right side of the sheet bundle, and the correction is made, it is preferable that the upstream conveyor belt and the downstream conveyor belt be kept as continuous as possible by conveying and delivering the sheet bundle. .

Hereinafter, embodiments of the paper feeding device of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a sheet bundle conveying portion of the sheet feeding device of the present invention.
A rotary drive shaft 2 connected to the rotary drive source 1 is supported by bearings 3 and 4. The rotary drive shaft 2 is provided with four one-way drive pulleys 5, 6, 7, and 8 and four downstream conveyance belt drive pulleys 19, 20, 21, and 22 alternately. A downstream conveyor belt shaft 31 is pivotally supported by bearings 32 and 33 in front of the rotational drive shaft 2 in the conveyance direction. The downstream conveyor belt shaft 31 includes four downstream conveyor belt pulleys 27 and 28. , 29, 30 are rotatably supported.

  And downstream conveyance belts 23, 24, 25, and 26 are suspended between the downstream conveyance belt drive pulleys 19, 20, 21, and 22, respectively. At the rear of the rotational drive shaft 2 in the transport direction, an upstream transport belt shaft 34 is supported by bearings 17 and 18, and the four one-way drive pulleys 5, 6, 7 are supported on the upstream transport belt shaft 34. , 8, four upstream side conveyor belt pulleys 13, 14, 15, 16 are rotatably provided.

  The upstream conveyor belts 9, 10, 11, and 12 are suspended between the one-way drive pulleys 5, 6, 7, and 8 and the upstream conveyor belt pulleys 13, 14, 15, and 16, respectively. Since the one-way drive pulley is a pulley provided on the rotary drive shaft 2 via a one-way clutch, when the rotary drive shaft 2 rotates in the direction of the rotation arrow, the one-way drive pulley rotates in the same direction. Even when 2 is stopped, each upstream-side transport belt rotates freely when it is manually advanced in the transport direction.

Even when the rotary drive shaft 2 is rotated and the one-way drive pulley is rotating, it can be freely rotated when the upstream conveyor belt is manually advanced so as to rotate at a speed higher than the rotational speed. To do.
Therefore, when the rotation drive shaft 2 is rotating normally, all the upstream conveying belts 9 to 12 and all the downstream conveying belts 23 to 26 travel in the direction of the arrow, and the sheet bundle is placed on the belt. When this is done, the sheet bundle is conveyed forward. During this transport, if there is a difference between the left and right of the sheet bundle due to the position of the leaflet advertisements or the like between the signatures and the amount of the amount, When the upstream conveyor belt is pushed forward manually, it can be advanced at a speed faster than the upstream conveyor belt on the non-delayed side, so that it can be easily returned to the left and right balanced sheet bundle conveyance. .

  Even when the rotary drive shaft 2 is stopped, the upstream conveying belt can be moved forward by the function of the one-way drive pulley, so that even when it is stopped, the inclination of the sheet bundle is manually returned to the normal direction. Can be made.

In the present embodiment, the number of belts is four for both upstream and downstream, but is not limited to this.
Furthermore, in order to ensure the return effect as described above, the surface of the upstream conveyance belt should be provided with irregularities so that the portion of the sheet bundle that is in contact with the upstream conveyance belt does not slip on the belt. Good.

  FIG. 2 is an example in which a narrow groove having a triangular cross section is provided in parallel to the width direction of the upstream conveying belts 9 to 12, but the uneven shape can be any shape as long as it can prevent slippage. Good.

It is a top view of the Example of the sheet | seat bundle conveyance part of this invention paper feeder. It is a side view of the Example which provided the unevenness | corrugation in the upstream conveyance belt surface in this invention. FIG. 10 is a side view of a conventional sheet feeding device in which a sheet bundle having a folded portion is placed on a conveying belt that is inclined downward in the conveying direction. It is the plane top view which looked at FIG. 3 from the top. FIG. 5 is a plan view of the arrangement of the conveyor belt from which the sheet bundle of FIG. 4 is removed as viewed from above. FIG. 10 is a side view showing a state where an avalanche phenomenon occurs on the rear side of the sheet bundle on the upstream side conveyance belt in the conventional apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotation drive source 2 Rotation drive shaft 3-4 Bearing 5-8 One-way drive pulley 9-12 Upstream conveyance belt 13-16 Upstream conveyance belt pulley 17-18 Bearing 19-22 Downstream conveyance belt drive pulley 23-26 Downstream Side conveyor belts 27-30 Downstream conveyor belt pulley 31 Downstream conveyor belt shaft 32-33 Bearing 34 Upstream conveyor belt shaft 35-37 Upstream conveyor belt drive pulley 38-47 Bearing 48 Worm 49 Worm gear 50 First electromagnetic clutch 51 Second Electromagnetic Clutch 52 First Drive Shaft 53 Second Drive Shaft 54 Third Drive Shaft 55 Discharge Main Drive Roller 56 Discharge Follower Roller 57 Adsorption Pad 58-59 Drive Belt 60 First Drive Pulley 61 Second Drive Pulley 62 First Downstream Side conveyor belt shaft 63 Second downstream side conveyor belt shaft 64 to 65 Paper detection sensor 6 flyers 67 support plate 68 sheet bundle

Claims (2)

It consists of a conveyor belt that is inclined downward in the conveyance direction and a support plate that has a lower side at a predetermined height from the belt at the belt folding position forward in the conveyance direction. A sheet feeding device that feeds the foremost sheet of the sheet bundle that is placed and transported to the support plate by pulling out one copy at a time from the lower side of the support plate with a suction pad;
The conveyor belt is composed of a plurality of parallel upstream conveyor belts and a plurality of downstream conveyor belts in parallel .
The upstream conveyor belt includes an upstream conveyor belt pulley that is rotatably supported by an upstream conveyor belt shaft that is provided rearward in the conveyance direction, and a rotation that is downstream of the upstream conveyor belt shaft and is driven to rotate by a motor. It is suspended between a drive shaft and a one-way drive pulley provided via a one-way clutch that is free to rotate forward.
The downstream conveyor belt includes a downstream conveyor belt drive pulley fixed to the rotational drive shaft and a downstream conveyor belt pulley rotatably supported by a downstream conveyor belt shaft provided in front of the conveyor direction. A paper feeding device that is suspended between the two.   2. The paper feeding device according to claim 1, wherein the upstream side conveying belt is provided with irregularities so that the sheet bundle placed thereon does not avalerate backward from the lower part.

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