JP6855329B2 - Paper leaf matching transport device - Google Patents

Description

The present invention relates to a paper leaf matching transport device for transporting the centers of paper leaves having different widths at high speed in a aligned manner with a transport passage.

When a valuable paper leaf such as a bill is inserted into the paper leaf discrimination device, the paper leaf matching device performs a center alignment (centering or centering) operation in which the central axis of the valuable paper leaf is aligned with the central axis of the transport passage. , Patent Document 1 below discloses a paper leaf matching transport device of a type in which valuable paper sheets are automatically transported to a discrimination sensor along a transport passage by the transport device. Identification sensors provided at predetermined positions in the aisle detect the optical or magnetic characteristics of the banknotes being transported. When the banknotes transported to the discrimination sensor are aligned in advance, the physical characteristics of the banknotes of different widths inserted into the paper leaf discrimination device can be accurately detected by the discrimination sensor.

The capture sensor of Patent Document 1 that detects the bill inserted from the bill entrance generates a detection signal to the discrimination control device, and the discrimination control device operates the actuator to lower the bracket to the operating position and capture the bill. Bring the roller into contact with the bill. After that, the discrimination control device rotates the take-in motor in the normal direction and drives the take-in roller to rotate, so that the banknotes are conveyed inside.

In Patent Document 1, when the capture completion sensor detects the tip of the banknote to be conveyed, the discrimination control device stops the drive of the capture motor and drives the actuator to move from the operating position to the non-operating position via the link device. Move the bracket to separate the feeding roller and the taking roller from the bill. After that, the discrimination control device rotates the first and second opposing rollers of the matching transfer device by the drive motor, drives the matching motor in the forward rotation, and moves the pair of movable pieces from the maximum separation position to the minimum separation position. Then, the centering operation of the banknotes is performed on the transport passage.

Japanese Patent No. 5,184,926

However, in the paper sheet matching transfer device of Patent Document 1, the actuator is operated, the bracket is lowered, the take-in roller is in contact with the banknote, the take-in roller is rotated, the bracket is pulled up, the take-in roller is separated from the banknote, and the like. Since the various operations of the above are performed before the central alignment of the banknotes, there is a drawback that a long time and a complicated structure are required from the insertion of the banknotes to the completion of the alignment operation.

Therefore, an object of the present invention is to provide a paper leaf matching transport device for aligning paper leaves with a transport passage at a high speed continuously and with a simple structure.

The paper leaf matching transport device of the present invention transports the paper leaves (15) inserted into the inlet (12) by the transport device (2) and the transport device (2) that transport the paper leaves (15) along the transport passage (11). A detection sensor (3) that detects the arrival of the paper sheets (15) to the side width position and generates a detection signal, a standby position that separates from each other on both sides of the transport passage (11), and an inside of the standby position. A pair of movable pieces (4) that are freely moved back and forth between the matching position and the alignment position approaching the surface of the paper, and a pressing device (5) that brings the paper sheets (15) into close contact with the transport roller (31) of the transport device (2). ), A width shift device (6) that moves a pair of movable pieces (4) from the standby position to the alignment position, and a return device (7) that rearranges the pair of movable pieces (4) from the alignment position to the standby position. To be equipped.

The width-shifting device (6) includes a spring (8) that generates elasticity to press a pair of movable pieces (4) from a standby position toward a matching position. The pressing device (5) is provided between a support piece (9) erected between a pair of movable pieces (4) separated from each other in the standby position, and between each of both ends of the support piece (9) and the movable piece (4). A movable roller (21) that is rotatably attached to the center of the cam mechanism (10) provided and the support piece (9) to bring the paper sheets (15) into close contact with the transport roller (31) of the transport device (2). And. The return device (7) holds a pair of movable pieces (4) in the standby position and releases the holding of the movable piece (4) in the standby position when a detection signal is generated from the detection sensor (3), and the return device (7) releases the holding of the movable piece (4) in the standby position. The pair of movable pieces (4) released from the holding position are moved from the standby position to the matching position by the elasticity of the spring (8). At the initial stage of movement of the pair of movable pieces (4) to the matching position by the elasticity of the spring (8), the movable roller (21) is moved in the direction away from the paper sheets (15) by the cam mechanism (10). After that, both movable pieces (4) come into contact with the side edges of the paper leaves (15) due to the elasticity of the spring (8), and move the central axis of the paper leaves (15) to the center of the transport passage (11). Align with the axis.

In the present invention, (i) the pair of movable pieces (4) released from the standby position are moved from the standby position to the matching position by the elasticity of the spring (8) of the width-shifting device (6). ii) At the initial stage of moving the movable piece (4) to the matching position, the movable roller (21) is automatically separated from the paper leaves (15) by the cam mechanism (10), and further (iii) the paper leaves (iii). The movable pieces (4) that come into contact with both edges of 15) perform the three actions of aligning the width of the paper leaves (15) and aligning the paper leaves (15) with the central axis of the transport passage (11). Be told.

The elasticity of the spring, which simplifies the structure of the side-by-side device, allows a pair of movable pieces to move at high speed from the standby position to the matching position.

Cross-sectional view of the paper leaf matching transport device of the present invention Perspective view of FIG. Sectional view of return device Sectional view of transport device and pressing device Perspective view of the pressing device Sectional view showing a movable piece moved to the alignment position Perspective view of the return device Side view showing the meshing of the drive gear and the intermittent gear of the return device Side view showing a state in which the intermittent gear is disengaged from the drive gear. Side view showing a state in which the intermittent gear is further rotated from the state of FIG. Side view showing a state in which the intermittent gear is re-engaged with the drive gear. Side view showing a state in which the movable piece is returned to the standby position by the rotation of the intermittent gear via the drive gear, the pinion and the rack against the elasticity of the spring.

Embodiments of the paper leaf matching transport device of the present invention applied to the banknote matching transport device will be described below with reference to FIGS. 1 to 12. In the embodiment of the present specification, the "paper leaves" described as "banknotes" refer to valuable documents such as banknotes, coupons, securities, tickets, and cards.

In the embodiment shown in FIGS. 1 and 2, the bill matching transport device of the present invention has a transport device (2) that transports the bill (15) inserted into the inlet (12) along the transport passage (11). , Separated into the maximum distance between the detection sensor (3), which detects the arrival of the banknote (15) transported by the transport device (2) and generates a detection signal, and the maximum distance position on both sides of the transport passage (11). A pair of movable pieces (4) that are freely moved back and forth between the standby position to be moved and the minimum separation position inside the standby position, that is, the alignment position to be shifted, and the transfer roller of the transfer device (2). A pressing device (5) that brings the bill (15) into close contact with the (31), a width-shifting device (6) that moves a pair of movable pieces (4) from the standby position to the matching position, and a pair of shifting devices (6) from the matching position to the standby position. It is equipped with a return device (7) for rearranging the movable piece (4).

The inlet sensor (30) provided near the inlet (12) detects the bill (15) inserted into the transport passage (11) from the inlet (12) and generates a detection signal to a transport matching control device (not shown). It consists of an optical sensor such as a photocoupler. The transport matching control device that receives the detection signal drives two transport rollers (31) by a transport motor of a transport device (2) (not shown) to transport the bill (15) along the transport passage (11). The detection sensor (3) composed of an optical sensor such as a photocoupler detects the tip of the bill (15) that reaches the side-by-side position and generates a detection signal in the transport matching control device.

The pair of movable pieces (4) are arranged along the guide rod (32) between the standby position, which is arranged in parallel with each other and separated on both sides of the transport passage (11), and the alignment position, which is closer to the inside than the standby position. And move freely back and forth. Each movable piece (4) includes a main body (4a) formed in an substantially L shape and a rack (70) that protrudes from the main body (4a) in a direction approaching each other and forms a part of a return device (7). To be equipped. A single pinion (71) that forms part of the return device (7) meshes with a pair of opposing racks (70) of each movable piece (4). A single pinion (71) that simultaneously meshes with the rack (70) formed on each movable piece (4) allows the pair of movable pieces (4) to move back and forth at the same time and in opposite directions by the same distance. it can. The pair of movable pieces (4) are moved from the standby position to the aligned position by the width-shifting device (6), and returned from the aligned position to the standby position by the return device (7).

The transport aisle (11) comprises a flat aisle (25) connected to the inlet (12) and a curved aisle (26) connected to the flat aisle (25) and extending rearward, and a pair of movable pieces (4). Each of the contact surfaces (40) has a grooved cross-section contact surface (40) that abuts on the side edge of the bill (15), and each contact surface (40) is a flat passage (25) and a curved passage (25) of the transport passage (11). It is provided with a linear contact surface (41) and a curved contact surface (42) formed in a V-shaped cross section along 26). However, in the present invention, the curved passage (26) of the transport passage (11) and the curved contact surface (42) of the movable piece (4) are omitted, and the flat passage (25) and the linear contact surface (41) are omitted. It will be understood that the aisle (11) and the movable piece (4) can be constructed by themselves.

The width adjusting device (6) shown in FIG. 3 is composed of a single spring (8) that generates a tensile force from the standby position to the matching position on the pair of movable pieces (4). Both ends of the spring (8) are locked to the protrusions (4b) of the main body (4a) of each movable piece (4), and the spring (8) arranged between the two movable pieces (4) is a double movable piece (2). 4) Always generate tensile force in the direction of approaching each other. However, the movable piece (4) is held in the standby position against the elasticity of the spring (8) by the reverse rotation prevention mechanism of the return device (7) described later. An example in which the width-aligning device (6) is configured by a spring (8) that generates a tensile force that pulls a pair of movable pieces (4) from a standby position to a matching position is illustrated, but as an alternative method. , A compression spring that generates elasticity to press the pair of movable pieces (4) in the approaching direction can also be arranged between each movable piece (4) and a housing (not shown).

In the standby position for holding the movable piece (4) shown in FIG. 4 at the maximum distance, the pressing device (5) transports the banknote (15) transported by the transport roller (31) of the transport device (2). Press on the roller (31). In the illustrated example, three pressing devices (5) are conveyed near the entrance (12), near the boundary between the flat passage (25) and the curved passage (26), and near the end of the curved passage (26). It is provided along the passage (11). Each pressing device (5) is movable with a support piece (9) erected between a pair of movable pieces (4) separated from each other, and a cam roller (10a) rotatably attached to both ends of the support piece (9). An inclined surface (4c) formed on the main body (4a) of the piece (4) and a banknote (15) rotatably attached to the central portion of the support piece (9) to carry the bill (15) to the transport roller (31) of the transport device (2). ) Is provided with a movable roller (21) that is brought into close contact with the). Since the cam roller (10a) of the support piece (9) rolls on the inclined surface (4c) formed on the main body (4a) of the movable piece (4), the cam roller (10a) and the inclined surface (4c) are It constitutes the cam mechanism (10).

Since each support piece (9) shown in FIG. 5 is pressed toward the transfer passage (11) by a pressing spring (27) arranged between the housing and the support piece (9) (not shown), the transfer device. The movable roller (21) of the pressing device (5), which is arranged to face the transport roller (31) constituting (2), transports the bill (15) in the radial direction of the rotation axis of the transport roller (30). (31) Make it adhere to the top. As a result, the bill (15) is sandwiched between the rotating transport roller (31) of the transport device (2) and the movable roller (21) that can rotate with the movement of the bill (15), and the width is surely adjusted. It is transported to the execution position.

When the bill (15) is conveyed to the alignment preparation position shown in FIG. 6, the cam mechanism (10) is at the moment when the pair of movable pieces (4) move to the alignment position where the pair of movable pieces (4) approach each other due to the tensile force of the spring (8). Since the cam roller (10a) of the movable piece (4) rolls in the direction of climbing the inclined surface (4c) of the movable piece (4), the movable roller (21) is separated from the bill (15) and pressed against the transport roller (31). To cancel. In this way, the cam mechanism (10) smoothly converts the advancing / retreating motion of the pair of movable pieces (4) into the vertical motion of the movable roller (21). Contrary to the above, inclined surfaces are formed at both ends of the support piece (9), and a cam roller rotatably provided on the main body (4a) of the movable piece (4) is rolled on the inclined surface of the support piece (9). You may move it. The cam mechanism (10) of the pressing device (5) is provided with an inclined surface or roller provided on each movable piece (4) and an inclined surface of a pair of movable pieces (4) provided at the end of the support piece (9). Alternatively, it is provided with a pair of rollers or complementary inclined surfaces that abut the rollers.

As shown in FIGS. 3 and 9, the return device (7) consists of a single pinion (71) and a pinion (71) that simultaneously mesh with two racks (70) formed on each movable piece (4). Return to rotate the intermittent gear (73) via the fixed drive gear (72) (FIG. 7), the intermittent gear (missing gear) (73) that meshes with the drive gear (72), and the reduction gear (75). It is equipped with a motor (74). In the present embodiment, since the DC motor that rotates at high speed in one direction is used for the return motor (74), the movable piece (4) can be returned to the standby position in about 170 ms.

The return motor (74) is connected to and controlled by a transport matching control device (not shown). The reduction gear (75) connected between the return motor (74) and the intermittent gear (73) includes a screw (worm) gear (76) and a helical gear (77) that meshes with the screw gear (76). To be equipped. Since the torsion angle of the screw gear (76) is smaller than the angle of repose (friction angle), the screw gear (76) cannot rotate even if an external force is applied to the helical gear (77). , Constructs a reverse rotation prevention (self-locking) mechanism. In this way, even if the elasticity of the spring (8) is applied to the pinion (71), the pair of movable pieces (4) can be held in the standby position by the reverse rotation prevention mechanism of the return device (7), so that complicated control or The return device (7) can be constructed at low cost without using the reverse rotation prevention device.

In the initial state shown in FIG. 3, the pair of movable pieces (4), springs (8) and return device (7) are held in a standby state by the reverse rotation prevention mechanism of the return device (7), whereby the pressing device is held. The movable roller (21) of (5) is also held in the standby position shown in FIG. When the inlet sensor (30) detects the bill (15) inserted into the inlet (12) and a detection signal is sent to the transport matching control device, the transport matching control device drives the transport roller (31). As a result, the movable roller (21) in contact with the transport roller (31) also rotates, and the bill (15) is transported along the transport passage (11). The sensor (3) that detects the tip of the bill (15) that reaches the matching preparation position shown in FIG. 4 generates a detection signal to the transport matching control device. At this time, the transport matching control device sends a signal to the return motor (74) to operate it. As a result, the intermittent gear (73) shown in FIG. 3 is rotated counterclockwise as shown in FIG. 9, so that the engagement between the drive gear (72) and the intermittent gear (73) is released.

Therefore, as shown in FIG. 10, the pair of movable pieces (4) are moved in the direction of approaching each other by the tensile force of the spring (8), so that the cam is immediately after the movement of the movable pieces (4) shown in FIG. Since the cam roller (10a) of the mechanism (10) rolls in the direction of climbing the inclined surface (4c) of the movable piece (4), the movable roller (21) is separated from the bill (15) and the transport roller (15) is separated. 31) Release the pressure. After that, the movable pieces (4) move in the direction of approaching each other by the tensile force of the spring (8), and as shown in FIG. 6, the movable piece (15) performs a matching operation of aligning the center of the bill (15) with the center of the transport passage. Do.

In this way, when the detection signal from the detection sensor (3) is generated, the return motor (74) rotates the intermittent gear (73) to separate the engagement between the intermittent gear (73) and the drive gear (72). , Release the holding of the movable piece (4) in the standby position. Next, when the pair of movable pieces (4) start moving before both movable pieces (4) come into contact with both side edges of the bill (15), the support piece (9) is moved by the cam mechanism (10) to the bill (10). The movable roller (21) moves away from the bill (15) as it moves away from the bill (15), so that the movable roller (21) does not press the bill (15) against the transport roller (31). Will be done. After that, both movable pieces (4) come into contact with both side edges of the bill (15), and the center line of the bill (15) is aligned (width-aligned) with respect to the center line of the transport passage (11).

In the embodiment of the present invention, the elasticity of the spring (8) allows the pair of movable pieces (4) to be moved from the standby position to the matching position within 0.4 seconds to complete the side-by-side operation. In addition, the structure for driving the side-by-side device (6) using the spring (8) can be simplified. When the detection signal from the detection sensor (3) is generated, the return device (7) operates the return motor (74) to release the holding of the movable piece (4) in the standby position, and the spring (8) The elasticity allows the pair of movable pieces (4) to move from the standby position to the matching position.

In the embodiment of the present invention, since the curved contact surface (42) along the curved passage (26) is provided on the pair of movable pieces (4), the curved contact surface (42) is arranged along the curved passage (26) of the transport passage (11). A large widthwise buckling strength (waist) of the banknote (15) can be obtained. For this reason, when the banknotes (15) are aligned, the curved contact surface (42) of the movable piece (4) is moved to the banknotes (42) due to the large buckling strength of the banknotes (15) in the curved passage (26). The width can be reliably adjusted by contacting both edges of 15). Further, by performing the matching operation using the curved passage (26), the length of the transport passage (11) can be shortened and the volume of the occupied space can be reduced. In this way, at the initial stage of moving the pair of movable pieces (4) to the matching position by the elasticity of the spring (8), the movable roller (21) of the pressing device (5) is moved by the cam mechanism (10) to the bill (15). ), And then, due to the elasticity of the spring (8), both movable pieces (4) come into contact with the side edges of the bill (15) and carry the central axis of the bill (15) through the transport passage ( The movable piece (4) can be moved to the alignment position of FIG. 11 that aligns with the central axis of 11).

Therefore, in the embodiment of the present invention, (i) the pair of movable pieces (4) whose holding in the standby position is released are aligned from the standby position by the elasticity of the spring (8) of the Tailgating device (6). At the initial stage of moving to the position and (ii) moving the movable piece (4) to the matching position, the movable roller (21) is automatically separated from the bill (15) by the cam mechanism (10), and further (iii). The movable piece (4) that contacts both side edges of the bill (15) can align the width of the bill (15) and align the bill (15) with the central axis of the transport passage (11).

In this case, the spring (8) of the width-shifting device (6) generates a force smaller than the buckling load that determines the rigidity of the bill (15), and a pair of movable pieces that move the bill (15) to the alignment position. In (4), when the rigidity of the bill (15) increases from the elasticity of the spring (8), the inward movement is stopped and the bill (15) is held in the aligned position. Therefore, the spring (8), which generates less elasticity than the buckling load that determines the stiffness of the bill (15), excess the bill (15) after aligning the bill (15) with the central axis of the transport passage (11). Does not bend to. In the illustrated example, the cam mechanism (10) is displayed as a rolling cam, but a sliding cam can be used instead of the rolling cam.

When the movable piece (4) is returned to the standby position from the matching position of FIG. 11, when the return motor (74) is driven and the intermittent gear (73) is rotated counterclockwise, the intermittent gear is as shown in FIG. Since (73) is re-engaged with the drive gear (72), it is returned to the standby state shown in FIG. 3 against the elasticity of the spring (8). When the leading tooth (78) of the intermittent gear (73) is re-engaged with the driving gear (72), the leading tooth is used to alleviate the impact generated between the leading tooth (78) and the driving gear (72). (78) is cantilevered and the leading teeth (78) generate moderate elasticity to cushion the impact with the drive gear (72). When the movable piece (4) is returned to the standby position, a photo sensor (not shown) that detects the standby position of the movable piece (4) is provided, and the transport matching control device that receives the detection signal of the photo sensor is the return motor (74). Stop driving. By changing or adjusting the mounting position of the photo sensor, the standby position of both movable pieces (4) can be set according to the width of the paper sheets.

The present invention can be effectively applied to a paper leaf matching transport device that handles various paper sheets such as coupons, securities, tickets, etc., in addition to banknotes.

(2) ・ ・ Conveyor device, (3) ・ ・ Detection sensor, (4) ・ ・ Movable piece, (4a) ・ ・ Main body, (4b) ・ ・ Protrusion, (4c) ・ ・ Inclined surface, (5) ・・ Pressing device, (6) ・ ・ Widthing device, (7) ・ ・ Returning device, (8) ・ ・ Spring, (9) ・ ・ Support piece, (10) ・ ・ Cam mechanism, (10a) ・ ・ Cam roller , (11) ... Transport passage, (12) ... Entrance, (15) ... Banknotes (paper sheets), (21) ... Movable rollers, (25) ... Flat passage, (26) ... Curved Passage, (27) ・ ・ Pressing spring, (30) ・ ・ Entrance sensor, (31) ・ ・ Conveying roller, (32) ・ ・ Guide device, (40) ・ ・ Contact surface, (41) ・ ・ Linear contact Surface, (42) ... Curved contact surface, (70) ... Rack, (71) ... Pinion,

Claims (10)

A transport device that transports paper leaves inserted into the entrance along the transport passage,
A detection sensor that generates a detection signal when it detects that the paper sheets transported by the transfer device have reached the side of the width position,
A pair of movable pieces that are freely moved back and forth between a standby position separated on both sides of the aisle and a matching position closer to the inside than the standby position.
A pressing device that brings paper sheets into close contact with the transport roller of the transport device,
A width-shifting device that moves a pair of movable pieces from the standby position to the matching position,
In a paper sheet matching transfer device provided with a return device for returning a pair of movable pieces from the matching position to the standby position.
The shunting device is equipped with a spring that generates elasticity to press a pair of movable pieces from the standby position toward the alignment position.
The pressing device includes a support piece erected between a pair of movable pieces separated from each other, a cam mechanism provided between the end of the support piece and the movable piece, and a paper rotatably attached to the center of the support piece. Equipped with a movable roller that brings leaves into close contact with the transport roller of the transport device.
The return device holds a pair of movable pieces in the standby position and releases the holding of the movable pieces in the standby position when a detection signal is generated from the detection sensor.
The pair of movable pieces released from the standby position are moved from the standby position to the aligned position by the elasticity of the spring.
At the initial stage of movement of the pair of movable pieces to the matching position by the elasticity of the spring, the movable roller of the pressing device moves in the direction away from the paper sheets by the cam mechanism, and then both movable pieces are moved by the elasticity of the spring. , A paper leaf matching transport device characterized in that the central axis of the paper leaf is aligned with the central axis of the transport passage by contacting the side edge of the paper leaf. The spring of the width-shifting device generates elasticity smaller than the buckling load that determines the rigidity of the leaves, and the pair of movable pieces that move the leaves to the matching position has the rigidity of the leaves more than the elasticity of the spring. The paper leaf matching transfer device according to claim 1, wherein when the number increases, the inward movement is stopped and the paper leaves are held in the matching position. The return device according to claim 1 or 2, further comprising a reverse rotation prevention mechanism for returning the pair of movable pieces to the standby position against the elasticity of the spring and holding the pair of movable pieces in the standby position against the elasticity of the spring. Paper leaf matching transport device. The movable roller is arranged so as to face the transport roller constituting the transport device, and the paper sheets are brought into close contact with the transport roller in the radial direction of the rotation axis of the transport roller according to any one of claims 1 to 3. Paper leaf matching transport device. Each of the pair of movable pieces has a grooved cross-section contact surface that abuts on the side edges of the paper leaves.
The transport passage includes a flat passage connected to the entrance and a curved passage connected to the flat passage.
The one according to any one of claims 1 to 4, wherein the contact surface of the groove-shaped cross section of the pair of movable pieces includes a linear passage, a linear contact surface formed along the curved passage, and a curved contact surface. Paper leaf matching transport device. The cam mechanism of the pressing device is a pair of rollers or rollers formed on each of the pair of movable pieces and a pair of rollers or rollers provided at the ends of the support pieces and in contact with the inclined surfaces or rollers of the pair of movable pieces. The paper leaf matching transport device according to any one of claims 1 to 5, further comprising an inclined surface. The return device is a single pinion that meshes with the rack formed on each of the pair of movable pieces at the same time, a drive gear fixed to the fixed shaft of the pinion, an intermittent gear that meshes with the drive gear, and a return that rotates the intermittent gear. It is equipped with a motor and a control device that drives the return motor.
When the detection signal is generated by the detection sensor, the return motor rotates the intermittent gear to disengage the intermittent gear and the drive gear, and the pair of movable pieces move from the standby position to the matching position due to the elasticity of the spring. The paper leaf matching transport device according to any one of claims 1 to 6. The paper sheet matching transfer device according to claim 7, wherein the intermittent gear is rotated by a return motor via a worm gear provided with a reverse rotation prevention mechanism. The seventh aspect of claim 7, wherein the intermittent gear is engaged with the driving gear again by driving the return motor and rotating the intermittent gear, and the pair of movable pieces are returned from the matching position to the standby position against the elasticity of the spring. Paper leaf matching transport device. The paper leaf matching transfer device according to claim 9, wherein the leading tooth of the intermittent gear is cantilevered and generates an appropriate elasticity to alleviate the impact with the driving gear when the movable piece is returned from the matching position to the standby position. ..

Images