JPS6348778B2 - - Google Patents

Abstract

A rotating drum (29) employed in this thin sheet feeding apparatus sucks the topmost one of stacked thin sheets, shifts it to a predetermined position, and then feeds it in the tangential direction of outer circumference of rotating drum (29). A pair of belts (71, 72) running on both sides of tangential direction form a V-shaped area (74) which is wide at the side of receiving the thin sheets fed from the drum but becomes narrower as it advances toward the tangential direction, thus allowing the thin sheets fed from the drum (29) to be guided to a thin sheet holding portion (73) which is formed by belts (71, 72) and to be conveyed to a predetermined place with the thin sheets held in the thin sheet holding portion (73). All of pulleys (64, 66, 67) for guiding belts (71, 72) have diameters smaller than that of the rotating drum (29) and axes parallel to that (35) of the rotating drum (29). and are arranged eccentrically relative to the rotating drum (29). Belts (71, 72) are driven at a speed substantially equal to the maximum circumferential speed of the rotating drum (29).

Description

[Detailed description of the invention] [Objective of the invention] (Industrial application field) The present invention enables paper sheets made of laminated thin papers or sheets to be sent out one by one reliably and at high speed. This invention relates to a paper sheet conveying device.

(Prior Art) Paper sheets such as data cards are usually stored in a stacked form. In order to utilize the information recorded on such paper sheets, a paper sheet conveying device is required to take out the sheets one by one and send them to a reading device.

FIG. 1 shows a conventional sheet conveying device used for this type of application, and only the main parts are schematically shown in this figure. In the figure, reference numeral 1 indicates a case with an open top surface, and a push-up plate 3 is provided at the inner bottom of the case 1, which is constantly biased upward by a spring 2. Leaves, for example, data cards 4... are arranged to be stacked. A locking edge 5 is provided at the upper right end of the case 1 in the figure, and by appropriately selecting the locking action of the locking edge 5 and the spring constant of the spring 2, the locking edge 5 can be fixed on the push-up plate 3. The top card of a stack of data cards is always held in a fixed position. A rotating drum 6 is disposed above the left end side of the case 1 in the figure, without contacting the case 1, with its rotating shaft perpendicular to the plane of the paper. Suction holes 7, 7 are provided at opposing positions on the circumferential wall of the drum 6, and a suction nozzle 8 whose opening is close to and opposed to the inner circumferential surface of the drum 6 is located inside the drum 6 in a stationary state. It is provided in The suction nozzle 8 is connected to a suction pump (not shown). On the other hand, an injection nozzle 9 connected to an exhaust pump (not shown) is provided above the left end of the case 1 in the figure, and the injection nozzle 9 blows air between the stacked data cards 4. . A shielding member 10 is provided near the injection nozzle 9 and facing the drum 9, and the gap between the shielding member 10 and the drum 6 is the same as the data card 4.
The thickness is set to a value between one sheet and two sheets of thickness. Further, on the left side of the case 1 in the figure, a pair of conveyor belts 11 and 12 are arranged in the vertical direction, and these belts 11 and 12 are wound around guide pulleys 11a and 12a, respectively.

According to this device, when the drum 6 is rotated in the direction shown by the arrow in the figure and the suction pump and exhaust pump are activated, the suction hole 7 provided in the drum 6 reaches the entire surface of the suction nozzle 8. In other words, each time the suction hole 7 reaches above the left end of the data card 4, the left end of the upper data card 4 is attracted to the drum 6, and as a result,
The sucked data card 4 is transferred to the left as the drum 6 rotates. Then, this transferred card is sandwiched between the conveyor belts 11 and 12,
For example, it is sent to a card reader. At this time,
Due to the presence of the shielding member 10, only the topmost card is delivered.

However, the conventional conveying device configured as described above has the following problems.

That is, the leading end of the paper sheet is dropped onto the belt 12 from the outer peripheral surface of the drum 6, and then the belt 1 is
Since it is narrowed between 1 and 12,
There were also problems such as the tip being bent or wrinkled when dropped, resulting in jamming.
In particular, when trying to feed thin paper sheets with no elasticity at high speed, the above-mentioned problems become noticeable, and as a result, high speed feeding is almost impossible. In addition, instead of dropping the paper sheet onto the belt from the outer circumferential surface of the drum, the paper sheet disclosed in US Pat. After moving the leading edge of the paper sheet to the end of the nipping opening formed between the pair of belts and pinching the leading edge of the paper sheet between the pair of belts, the paper sheet being sucked by the rotating drum is removed. If the leading end of the belt bends before reaching the end of the clamping opening, there is a problem that the bent end of the belt becomes wedged between the pair of belts.

Therefore, in order to solve the drawbacks of this conventional paper sheet conveying device, the present inventor previously proposed Japanese Patent Application No. 129753/1983 (Japanese Patent Application No. 23686/1983).

The outline of this invention will be explained using FIG. 10.
The left end side of the uppermost card of the stacked data cards 85 in FIG. 10 is attracted to the outer surface of the rotating drum 89. When the rotary drum 89 performs rotational movement while accelerating, the adsorbed card is transferred to the tenth card.
As shown in the figure, it is transferred to the left in the figure while being accelerated while being attracted. As the rotary drum 89 rotates, the leading end of the data card 85 adsorbed on the drum 89 becomes a narrow V-shaped paper sheet formed between the first conveyor belt 91 and the second conveyor belt 92. The material is guided into the transport entrance S, and is transported in a direction toward the deep part of the transport entrance S. When the leading end in the rotational direction of the peripheral wall portion where the suction hole 90 is provided has passed the entire surface of the suction nozzle 93, the leading end of the data card 85, which is attracted to the outer surface of the drum 89, is transferred to the drum by the belt 91. 89
The tip begins to be separated from the outer surface of the belt, and the tip is guided deeper into the V-shaped conveyance entrance S, and is finally sandwiched between the belts 91 and 92. In this case, the suction holes 90 of the rotary drum 89 are attracted to the outer surface of the rotary drum 89 over a wide circumferential area (approximately the rear side of the data card 85, that is, the portion that does not penetrate into the V-shaped conveyance entrance S). Since the circumferential speed of the rotating drum 89 is still below the moving speed of the belts 91 and 92, frictional force is applied to the data card 85 by the belts 91 and 92 due to this difference in speed. Since the leading end of the data card 85 is in a state where it can receive the transfer force by the belts 91 and 92, tension acts on the data card 85, and this tension and the moving direction of the belts 91 and 92 act effectively. This prevents the tip of the data card 85 from bending and prevents "sagging".
Smooth out wrinkles and wrinkles. Also, data card 85
Since the rear side of the data card is attracted, the position of the data card is restricted by this attraction, and as a result, the card being transferred may vibrate, generate vibration noise, or move horizontally. This prevents the transfer from occurring and ensures smooth transfer. Then, when the rear end side of the area where the suction holes 90 are provided finishes passing through the entire surface of the suction nozzle 93, the circumferential speed of the rotating drum 89 increases to the extent that the belts 91, 92
At this point in time, the data card 85 is completely transferred between the belts 91 and 92.

The suction nozzle 93 is connected to a hollow annular body arranged concentrically within the rotating drum 89, and the hollow annular body 94 is connected to the eleventh hollow annular body.
As shown in the figure, the hollow fixed shaft 95 is connected to a suction pump (not shown). As shown in FIG. 11, bearings 96 and 97 are provided on the outer periphery of the hollow fixed shaft 95.
A housing 98 is rotatably fitted through the housing 98 . The housing 98 is comprised of a cylindrical portion 99 and a jaw portion 100 projecting from the end of the cylindrical portion 99 on the rotating drum side, and a pulley 101 is keyed to the outer periphery of the cylindrical portion 99. Also, jaw part 1
A hole 10 is located at a symmetrical position centering on the axis of 00.
2,103 are provided, and these holes 102,10
3 has shafts 106 and 1 via bearings 104 and 105.
07 are rotatably supported, and these shafts 10
Planetary gears 109 and 110 that mesh with a sun gear 108 that is non-rotatably mounted on the outer periphery of the hollow fixed shaft 95 are mounted on the outer peripheries of the shafts 6 and 107, respectively. The rotating drum 89 rotates due to the rotation of the planetary gears 109 and 110 accompanying the rotation of the housing 98, and the suction hole 90 of the rotating drum 89 rotates.
The rotary drum 89 stops at a position where the leading end of the portion provided with is directly above the left end in FIG. 10 of the stacked data cards 85.
Each gear and connection relationship is set. Also,
A rotating drum 89 is provided on the side surface of the hollow annular body 94.
A guide pulley 113 is formed with a smaller diameter and protrudes outside the rotating drum, and a guide pulley 113 is rotatably attached to the outer periphery of this projecting peripheral wall 111 via a bearing 112. Similarly, a guide pulley 115 having the same diameter as the guide pulley 113 is rotatably attached to the base of the rotating drum 89 via a bearing 114. Therefore, guide pulleys 113 and 115 having a smaller diameter than the rotating drum 89 are coaxially located on both sides of the rotating drum 89.
Moreover, these three members face the upper surface of the stacked data cards 85.

However, such a configuration has the following problems.

Since the bearing 114 specifically uses a ball bearing, the bearing 114 is composed of a bearing ring (inner ring, outer ring), rolling elements (balls), and a cage. A number of rolling elements (balls) are arranged between two opposing bearing rings, and the structure is such that the rolling elements (balls) are kept in rolling motion by a retainer while keeping a constant distance from each other so that they do not come into contact with each other. . This structure allows the members attached to the inner race and the members attached to the outer race to move separately. Next, a partial schematic diagram of the bearing 114 is shown in Fig. 13.
As shown in the figure. In Fig. 13, the bearing ring is the outer ring 11.
6. It is composed of an inner ring 117, and the rolling elements 118 are held by a cage (not shown).

The inner ring 117 of the bearing 114 is attached to a rotating drum 89 that rotates intermittently, and rotates intermittently together with the rotating drum 89. On the other hand, a pulley 115 around which the running belt 91 is wrapped is attached to the outer ring 116 of the bearing 114, and the outer ring 116 of the bearing 114 rotates at a constant speed together with the pulley 115. In other words, bearing 1
14, the circumferential speed of the outer ring 116 rotates at the same speed as the belt speed, while the inner ring 117 rotates intermittently at a non-uniform speed between zero and approximately the belt speed. This situation is shown in FIG. Therefore,
When the circumferential speed of the inner ring is zero, the rolling elements (balls) between the inner and outer rings revolve while rotating on their own axis, attempting to perform the original rolling operation as shown in FIG. 13a. Furthermore, when the circumferential speed of the inner ring reaches almost the belt speed, it attempts to only revolve without rotating, as shown in FIG. 13b. When the circumferential speed of the inner ring is other than the above (in fact, most cases are other than the above), the rolling elements (balls) do not roll but slide, as shown in FIG. 13c. I'm going to be angry about the next thing. Since sliding resistance is much greater than rolling resistance, this generates frictional heat, which causes grease, etc. sealed in for lubrication to scatter, staining the paper being fed, or seizing the bearing itself. . The sliding causes problems such as damage to the rolling element (ball) surfaces and the inner and outer ring surfaces, making it unusable as a bearing. In addition, since the leading edge of the paper sheet is dropped onto the belt 12 from the outer circumferential surface of the drum 6 and then sandwiched between the belts 11 and 12, the leading edge of the paper sheet does not bend or wrinkle when dropped. There were also problems such as "jamming" occurring. Furthermore, since the first belt 91 is provided coaxially with the rotating drum, the V-shaped conveyance entrance S formed by the first belt and the second belt cannot be adjusted. However, there was a problem in that it was difficult to make adjustments depending on the size, material, and usage condition (for example, if it had become worn out and shabby), as well as to make maintenance and inspection difficult.

(Problems to be Solved by the Invention) The present invention has been made in view of the above circumstances, and its purpose is to be able to reliably adsorb and transport paper sheets even when high-speed transport is performed. In addition, the paper sheets can be fed out one by one at a precise pitch without bending the leading edge of the paper sheet, jamming it, shifting its position, or generating vibration noise. In addition, it is possible to prevent damage to the bearings used to support the guide pulley around which the sheet conveyance belt is wrapped, and furthermore, it is possible to make fine adjustments according to the shape, size, and usage condition of the sheet (for example, the state of wobbling). The object of the present invention is to provide an easy paper sheet conveying device.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a rotating drum that is arranged opposite to the paper surface of the stacked paper sheets, and that extends over a predetermined length along the peripheral wall of the rotating drum. Each time the group of suction holes formed in this way reach a position opposite to the paper surface, the paper sheet is attracted to the outer surface of the peripheral wall of the rotary drum, and as the rotary drum rotates, the paper sheet is accelerated in the feeding direction and the paper sheet is In the paper sheet conveying device, the leading end of the paper sheet is gradually released from suction from a group of suction holes in the peripheral wall of the rotary drum, and the paper sheet is conveyed while being sandwiched between the first and second conveyor belts. The first conveyor belt is wound around a first guide pulley, the second conveyor belt is wound around second and third guide pulleys, and the belt is gradually narrowed in a V-shape along the feeding direction of the paper sheets. to form a paper sheet conveyance entrance, and
The first and second guide pulleys form the opening of the paper sheet conveyance entrance, and the first and second guide pulleys are installed non-coaxially with the axis of the rotating drum, and
The support member of the guide pulley is screwed to the frame, and the third guide pulley is configured to overlap the first and second conveyor belts at a deep part of the paper sheet conveyance entrance to form a sandwiching surface. Located in the leaf transport device.

(Function) The paper sheet conveyance entrance formed by the first and second conveyor belts is gradually narrowed in a V-shape along the feeding direction of the paper sheets, and further held on the rotating drum, and the rear end side The paper sheet is held in suction and pushed back, and the suction on the leading edge side is released one after another, and the leading edge side of the paper sheet is stretched in the feeding direction, making frictional contact, so the leading edge does not bend or become loose. , when the sheet almost reaches the moving speed of the first and second conveyor belts without jamming since the wrinkles and slack are stretched out and the position of the trailing end side is restricted,
This first and second paper sheet suction is completely released and
In addition, since the first and second conveyor belts are wound around a guide pulley that is disposed non-coaxially with the axis of the rotating drum, the bearing that supports the guide pulley may be damaged. V formed by the first and second conveyor belts
It becomes easy to adjust the letter-shaped conveyance entrance.

(Example) The details of the present invention will be explained below by referring to the illustrated example.

FIG. 2 is a side view showing essential parts of a paper sheet conveying device according to an embodiment of the present invention.

In the figure, 15 is a frame (mounting board), and bearings 16a and 16b are fixed to this frame 15 through a support member in a vertically opposing relationship, and a ball screw 17 is rotated by these bearings 16a and 16b. freely supported. The upper end of the ball screw 17 is connected to the rotating shaft of a motor 19 via a speed reduction mechanism 18. A ball nut 20 is screwed onto the outer periphery of the ball screw 17, and a mounting table 21 on which data cards 25 are placed in a stacked state is fixed horizontally to the upper surface of the ball nut 20. This mounting table 21
Above is a data card 2 located on the top layer of the data card 25 placed on the mounting table 21.
A position detector 22 formed of a limit switch or the like is provided, which sends an OFF signal when 5 makes contact, and sends an ON signal when no contact is made, and the ON signal from this position detector 22 causes the motor 19 to The rotation (normal rotation) is controlled so that the ball nut 20 is raised in the direction indicated by an arrow 23 in the figure. Therefore, the data card 25 located on the top layer is always held at a constant height. The motor 19 can be selectively reversed and stopped by external operation.

On the left side of the mounting table 21, there is a data card 25 placed on the mounting table 21.
As shown in FIG. 6, the upper end surface of the intake cylinder 24, which is formed in the shape of a flat rectangular cylinder, is positioned at the same height as the data card 25 located on the top layer, so as to restrict the position of the left end surface of the cylinder. 26, and this plate-shaped 26 has intake holes 27 formed in, for example, five rows and three columns. The lower end of this intake cylinder 24 in FIG. 2 is connected to an intake pump _P1 . On the other hand, at the upper end and both side surfaces of the intake cylinder 24, there is a pair of holes, as shown in FIG. spray cylinders 28a, 28b are provided. A spray nozzle H extending in the stacking direction is formed on the wall of these spray tubes 28a, 28b facing the side surface of the stacked data cards 25, and each of the spray tubes 28a, 28b is connected to a compressor _C1. has been done.

Therefore, the rotary drum 29 is mounted on the mounting table 21.
The shaft is oriented perpendicular to the plane of the paper.

As shown in FIG. 3, this rotating drum 29 is formed to have a width narrower than the width of the data card 25, and as shown in FIG. A predetermined length is formed along the circumferential direction, and these suction hole groups 30
A member 32 having a large coefficient of friction, such as rubber, and having holes 31 in the portions corresponding to the suction hole groups 30 is fixed to the outer surface of the portion where the suction hole groups 30 are formed. As shown in FIG. 4, a suction nozzle 33 is fixed inside the rotary drum 29 with its opening close to the inner peripheral surface of the rotary drum 29. The inner surface of one of the starting walls 33a that regulates the width of the suction nozzle 33 in the circumferential direction has a circumferential length of 3 in the counter-rotational direction of the rotary drum 29 from the left end in FIG. 4 of the stacked data cards 25.
~8mm, and the other end wall 33
The inner surface of b is located to the left of the intake cylinder 24 and to the right of a point where an upper belt 71, which will be described later, intersects with the rotating drum 29.

In the rotating drum 29 and the suction nozzle 33 having such a positional relationship, the starting wall 33a of the suction hole 30
The relationship between the circumferential length l ₂ mm of the suction hole 30 from the start wall 33a to the end wall 33b and the opening length l ₁ mm of the suction nozzle 33 along the inner wall of the rotating drum 29 from the start wall 33a to the end wall 33b is as follows. It becomes like this.

1/4 L/n5/12 L/n 1/2 L/n+3l ₁ +l ₂ 1/2 L/2+8 Therefore, the suction nozzle 33 is connected to the hollow fixed shaft 3
A cover 33c is screwed to the side surface of the suction nozzle 33, and is further tightened from the outside to a hollow fixed shaft with a tightening screw 34. The hollow fixed shaft 35 is an intake pump.
Connected to _P2 .

Housing 3 via the middle fixed shafts 36, 37
8 is rotatably fitted. This housing 38 is composed of a cylindrical portion 39 and a jaw portion 40, and a pulley 41 is secured to the outer periphery of the cylindrical portion 39 with a key 41a. A timing belt 79 is wound around the pulley 41, and the belt 79 is driven by a motor M (not shown). Further, holes 42 and 43 are located at symmetrical positions with respect to the axis of the jaw 40.
A bearing 4 is provided in these holes 42 and 43.
Shafts 46 and 47 are rotatably supported via shafts 4 and 45, and planetary gears are disposed on the outer peripheries of these shafts 46 and 47 and mesh with a sun gear 48 that is non-rotatably mounted on the outer periphery of the hollow fixed shaft 35. 49 and 50 are installed respectively. and the shafts 46, 47
flanges 51 and 52 are respectively attached to the flanges 51 and 52, and pins 53 and 54 are provided on the pitch circles of the planetary gears 49 and 50 on these flanges 51 and 52, as shown in FIG. is a crankshaft 59 fixed to the rotating drum 29 via connecting rods 55, 56 and pins 57, 58;
is connected to. Note that the planetary gears 49, 5
The diameter of the rotary drum 29 is set to 1/2 of the diameter of the sun gear 48, and the rotation of the planetary gears 49 and 50 in conjunction with the rotation of the housing 38 rotates the rotary drum 29. The gears and the coupling relationships are set such that the rotary drum 29 temporarily stops at the position where the tip of the portion where the suction hole 30 is provided is directly above the left of the stacked data cards 25 in FIG. ing.

Further, on both sides of the drum 29, U-shaped support members 61 are fixed to the frame 15 by screws via support members, and are installed in such a manner that the drum 29 is sandwiched between the openings of the support members 61 in a non-contact manner. A shaft 63 parallel to the axial center line of the rotary drum 29 is rotatably supported at both ends of the support member 61 via bearings 62, and a guide pulley 64 (first guide pulley) is attached to each of these shafts 63. ) is installed. That is, the guide pulleys 64 are located on both sides of the drum 29 non-coaxially with the drum 29.

Thus, diagonally above the mounting table 21 in FIG.
1 and 72 are provided in parallel to form a holding surface 73 for the data card 25 in a relationship that they circulate in the direction shown by the arrow in the figure. The first conveyor belt 71 located on the upper side of these conveyor belts partially runs on the side of the rotating drum 29 via guide pulleys 67 (second guide pulleys) and 64.
In addition, the second conveyor belt 72 located on the lower side passes through the left side of the stacked paper sheets 25 and pulls the guide pulley 6.
7, and both conveyor belts 71, 7.
2 overlap at the position of the guide pulley 66 (third guide pulley) to form a clamping surface 73.
Between the portion of the upper belt 71 extending from the guide pulley 64 to the guide pulley 66 and the lower belt 72 opposing this, there is a narrow V-shape that gradually widens as it approaches the stacked paper sheets. The upper two belts 71 forming the V-shaped paper sheet conveyance entrance S or their extension line form the V-shaped paper sheet conveyance entrance S, and each belt has a straight portion. A line formed by connecting the end wall 33b of the suction nozzle 33 where it intersects with the inner surface extension crosses the drum 29.

Next, the operation of the apparatus of the present invention configured as described above will be explained.

First, the motor 19 is reversed to lower the mounting table 21 to the lowest position, and in this state, a plurality of data cards 25 are placed on the mounting table 21 in a stacked state as shown in FIG. Next, the motor M (not shown) is rotated to start rotating the rotary drum 29, the conveyor belts 71 and 72 are started to run, the intake pumps P ₁ and P ₂ and the compressor C ₁ are operated, and the motor 19 is Switch to the opposite side.

In this state, the data card 25 located on the top layer is not in contact with the position detector 22, so the motor 19 continuously rotates in the forward direction, and as a result,
The mounting table 21 gradually rises. Then, when it rises to a certain position, the data card 2 located on the top layer
5 contacts the position detector 22, and as a result, the motor 1
9 stops, and the mounting table 21 stops rising. Therefore, the data card 25 located at the top layer is always held at a constant height.

On the other hand, when the pulley 41 rotates and the housing 38 rotates as the belt 79 driven by a motor M (not shown) runs, this rotation causes the shaft 4
6 and 47 to planetary gears 49 and 50. As a result, the planet gears 49 and 50 are the sun gear 4.
It revolves around 8 while rotating on its axis. Similarly, the flanges 51 and 52 also revolve while rotating. Pins 53, 54 are provided on the flanges 51, 52 at positions corresponding to the pitch circles of the planetary gears 49, 50, and are further connected to the crankshaft 59 via connecting rods 55, 56 and pins 57, 58. As the flanges 51 and 52 rotate, the rotating drum 29
The rotating drum 29 also rotates, and the rotating drum 29 stops once every half rotation, and reaches its maximum speed at the halfway point. As mentioned above, the tip of the portion of the rotary drum 29 where the suction hole group 30 is provided is 3 to 8 mm over the entire surface of the suction nozzle 33.
Since the rotating drum 29 is set to stop at the part where it enters, the rotating drum stops when it rotates to this position. At this stop position, the suction nozzle 33 communicates with the outside through the suction hole group 30 provided between 3 and 8 mm, so a strong suction force acts on the suction hole group 30. As a result, the data card 25 loaded on the mounting table 21
The left end in FIG. 4 of the uppermost card is attracted to the outer surface of the rotating drum 29. In this case, the second data card 25 loaded on the mounting table 21
Since the pair of blowing nozzles 28a and 28b blow air toward both sides parallel to the feeding direction at the left end in the figure, the data cards 25 that are in close contact with each other in the stacking direction are not tilted in one direction. separated from each other. Therefore, when the rotary drum 29 rotates, the adsorbed card is transferred to the left in the drawing while remaining adsorbed, as shown in FIG. In this case, even if the cards located below the top layer try to move together, the suction force of the intake pipe 24 will be stronger than the cards located on the top layer, and as a result, these cards will not move as shown in the figure. As shown in FIG. 2, it is attracted to the hole 27 of the intake cylinder 24 and its movement is restricted. Therefore, only the uppermost data card 25 is transferred as the rotating drum 29 moves. Further, in this case, the suction surface of the rotating drum 29 is attached to a member 32 having a large coefficient of friction.
Since the data card 25 is covered by the rotary drum 29, so-called slipping does not occur, and the data card 25 that has been sucked is transferred to the left at the same speed as the rotating drum 29.

The speed of the rotating drum 29 gradually increases, and the data card 25 attracted to this drum 29 also receives acceleration. As the rotating drum 29 rotates,
Data card 2 adsorbed on this drum 29
5 is guided into a narrow V-shaped sheet conveyance entrance S formed between belts 71 and 72, and is transported in a direction toward the deep part of this conveyance entrance S. When the rotational end of the peripheral wall portion where the suction hole group 30 is provided has passed through the entire surface of the suction nozzle 33, the end of the data card 25, which is attracted to the outer surface of the drum 29, is moved by the belt 71. Then, the tip begins to be separated from the outer periphery of the drum 29, and the tip is guided deeper into the V-shaped conveyance entrance S, and is finally sandwiched between the belts 71 and 72.

In this case, the opening length of the suction nozzle 33 which is closely opposed to the inner wall of the drum 29 can be shortened by the length of the suction hole group 30 provided on the peripheral wall of the drum 29 in the circumferential direction of the drum 29, The amount of vacuum leakage in the suction nozzle 33 can be reduced, and the degree of vacuum in the suction nozzle 33 required for high-speed suction and transfer of the data card 25 can be ensured. Further, while the leading end of the data card 25 begins to separate from the outer surface of the rotating drum 29, is guided into the V-shaped conveyance entrance S, and advances to the deep part of the conveyance entrance S, the data card 25
While the rear end of the data card 25 is held by suction and its position is regulated, the moving speed of the data card 25 is lower than the running speed of the belts 71 and 72.
The two belts 71 and 72 run at both ends in the same direction of movement at a faster speed, and the distance between them gradually narrows.
Since the data card 25 is subjected to sliding friction, the leading end of the data card 25 is prevented from bending, and "sag" and "wrinkles" are smoothed out. Furthermore, after the leading end of the data card 25 begins to leave the outer surface of the rotating drum 29, the V-shaped conveyance entrance S is opened.
The rear side of the data card 25, which faces inward toward the deep side and is transferred until it begins to be sandwiched between the belts 71 and 72, that is, the portion that does not enter the V-shaped conveyance entrance S, is the outer circumferential surface of the rotating drum 29. Since the card 25 is still adsorbed, the position of the card 25 to be transferred is restricted by this adsorption, and as a result,
The transferred card is prevented from vibrating or generating vibration noise, and smooth transfer is performed. When the rear end side of the area where the suction hole group 30 is provided finishes passing through the entire surface of the suction nozzle 33, the circumferential speed of the rotating drum 29 increases to the moving speed of the belts 71 and 72, and at this rising point The leading end of the data card 25 is attached to the belt 7.
It is completely sandwiched between 1 and 72. In this way, every time the rotating drum 29 makes a half rotation, the mounting table 21
The stacked data cards 25 are taken out one by one and sent between conveyor belts 71 and 72.

In this way, the rotary drum 29 is disposed opposite the stacked paper sheets 25, and the suction holes 30 formed in the peripheral wall of the rotary drum 29 face each other each time the paper sheets come to a position facing the paper sheets. In a device in which paper sheets are adsorbed to the outer surface of the peripheral wall of the rotary drum 29 and moved in the sending direction, they are sandwiched between the pair of conveyor belts 71 and 72. These belts 71, 72
Forming a narrow V-shaped paper sheet conveyance entrance S that gradually widens as the paper sheets approach the stacked paper sheets is formed by a straight portion of each belt,
A suction thread is set so that the leading end of the paper sheet transferred by the rotary drum 29 in the conveyance entrance S is released from the rotary drum by suction, and
The suction hole group 30 is connected to the peripheral wall of the rotary drum 29 in such a manner that the data card 25 can be sucked and held until the leading end of the data card 25 transferred by the rotary drum 29 is sandwiched between the conveyor belts 71 and 72. Further, the circumferential speed of the rotating drum 29 is set to be lower than the running speed of the conveyor belts 71 and 72.

In addition, in the above-mentioned embodiment, a plurality of suction hole groups 30 are provided at two opposing locations on the peripheral wall of the rotating drum 29, but these may be provided at only one location, or may be provided at three or more locations. . It depends on the diameter ratio n of the sun gear and the planetary gear, for example, n
When n=2, there are two suction hole groups 30, and when n=3, there are three... In addition, a detector is installed to detect the paper sheets located at the top layer of paper sheets, and the output of this detector drives a motor to control the position of the entire stack, thereby making the top position constant. However, it is not limited to this. For example, a spring can be used to constantly apply an upward eccentric force to the paper sheets stacked inside the case, and a locking edge can be provided to measure the spring constant of the spring. The uppermost position may be made constant by appropriate selection and the locking action of the locking edge.

Further, the position of the guide pulley 64 is not limited to the above-mentioned embodiment; for example, as shown in FIG. As shown in FIG. 8, it may be positioned slightly above the lower end of the rotary drum 29, and even with this arrangement, the same effects as in the previous embodiment can be achieved. Also, the 9th
As shown in the figure, the belt 71 may be moved behind the rotating drum 29 in combination with guide pulleys 81 and 82. In addition, each of the above-mentioned embodiments is an example in which the present invention is applied to a device having a stacking section that stacks paper sheets in the vertical direction, but the present invention also applies the present invention to stacking paper sheets in a direction perpendicular to the direction of gravity. It can also be applied to products with laminated parts.

[Effects of the Invention] As is clear from the above description, the present invention has the advantage that the position where the leading edge of the paper sheet is released from suction is set within the paper sheet conveyance entrance S.
Paper sheets can be smoothly transferred from the sheet to the conveyor belts 71, 72. Further, the leading edge of the paper sheet begins to separate from the outer circumferential surface of the rotating drum 29, is guided into the V-shaped conveyance entrance S, and faces the deep part of the conveyance entrance S,
1 and 72, the rear side of the paper sheet, that is, the part that has not entered the V-shaped conveyance entrance S, is still attracted to the outer circumferential surface of the rotating drum. As a result, the paper sheets are regulated in position, and as a result, the paper sheets being transported are prevented from vibrating, generating vibration noise, or shifting in the horizontal direction, and are fed out smoothly. be able to. Furthermore, the conveyance entrance S formed by the conveyor belt is formed into a V-shape that gradually becomes narrower for each belt, and the suction hole group 3 is formed as described above.
0 is set so that the circumferential speed of the rotating drum 29 is equal to the conveyor belt 7.
By accelerating from a running speed of 1.72 or less, the sliding friction of the conveyor belt effectively acts on the leading edge of the paper sheet, which is no longer adsorbed, and prevents the leading edge from bending, which is likely to occur when the sheet is transferred to the belt. It is possible to prevent the occurrence of jams, and it is also possible to lengthen the "wrinkles" and "sag" of paper sheets, thereby preventing the occurrence of jams. Furthermore, since the guide pulley 64 that guides the upper belt 71 is provided independently of the rotating drum 29, the diameter of the guide pulley 64 can be made small, unlike the case where the guide pulley 64 is supported by the rotating drum 29. The outer ring of a bearing 62 that supports the is fixed to the support member 61 so as not to rotate, and the inner ring is attached to the shaft 63 of a pulley 64 that is wound around a belt 71 and rotated at a constant speed. Therefore, since the rolling elements between the inner ring and the outer ring perform only rolling motion, the rolling elements caused by sliding of the rolling elements,
This prevents damage to the inner ring and outer ring surfaces, and prevents grease and the like sealed in for lubrication by frictional heat from scattering and staining the paper sheets to be transported. Furthermore,
A guide pulley 64 is provided independently of the rotating drum 29, and the guide pulley 64 is supported by the support member 61 via a shaft 63 and a bearing 62.
is screwed to the frame 15. Therefore, the V-shaped paper sheet conveyance entrance S can be adjusted by adjusting the position of the support member 61 or replacing it according to the shape, size, and material of the paper sheet.
Assembly, maintenance and inspection can be facilitated.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the main parts of a conventional device of this type, FIG. 2 is a schematic diagram of the main parts of a conveying device according to an embodiment of the present invention, and FIG. 3 is a section taken along line A-A in FIG. 4 is a view taken along the line BB in FIG. 3, FIG. 5 is a view taken along the line C-C in FIG. 3, and FIG. 6 is a view taken along the line DD in FIG. 2. The cutaway view, FIG. 7, FIG. 8, and FIG. 9 are schematic configuration diagrams of main parts in different embodiments of the present invention, and FIG.
0, FIG. 11, FIG. 12, and FIG. 13 are schematic diagrams and explanatory diagrams of a device that is an improvement of the device in FIG. 1. 21...Placement stand, 25...Data card, 29
... Rotating drum, 30 ... Suction hole group, 33 ... Suction nozzle, 64 ... First guide pulley, 66 ...
...Third guide pulley, 67...Second guide pulley, 71...First conveyor belt, 72...Second
Conveyor belt, S...Paper sheet conveyance entrance.

Claims (1)

[Claims] 1. A rotating drum is arranged opposite to the paper surface of the stacked paper sheets, and each time a group of suction holes formed over a predetermined length along the peripheral wall of the rotating drum reaches a position opposite to the paper surface, The paper sheet is attracted to the outer surface of the peripheral wall of the rotary drum, and the leading end of the paper sheet is pulled out from a group of suction holes in the peripheral wall of the rotary drum while accelerating in the feeding direction of the paper sheet as the rotary drum rotates. In the paper sheet conveying device in which suction is gradually released and paper sheets are conveyed by being sandwiched between a first and second conveyor belt, the first conveyor belt is wound around a first guide pulley, and the second conveyor belt is wound around a first guide pulley. Wrap the conveyor belt around the second and third guide pulleys,
A paper sheet transport entrance is formed by gradually narrowing in a V-shape along the paper sheet feeding direction, and an opening for the paper sheet transport entrance is formed by the first and second guide pulleys. However, the first and second guide pulleys are installed non-coaxially with the axis of the rotating drum, the support member of the first guide pulley is screwed to the frame, and the third guide pulley is configured to support the paper sheets. A paper sheet conveyance device characterized in that a first and second conveyance belt are overlapped at a deep part of a conveyance entrance to form a sandwiching surface.