JP4468272B2 - Paper sheet take-out device - Google Patents

Description

  The present invention relates to a paper sheet take-out device that takes out a plurality of paper sheets such as mails one by one.

  2. Description of the Related Art Conventionally, as a paper sheet take-out device, a take-out device that takes out a plurality of postal items one by one in a standing position is known (for example, see Patent Document 1). This take-out device is a stacking table for placing a plurality of paper sheets in a stacked state with their lower end sides in contact with each other, urging the paper sheets in the stacking direction and supplying the paper sheets to the take-out position. Backup plate, two downstream floor belts that are partially exposed from the mounting table near the take-out position and extend along the carrying direction, and are partially exposed from the stand at a position away from the take-out position The upstream floor belt extending along the direction, rotating in contact with the paper sheets at the end of the stacking direction supplied to the take-out position, and rotating in the direction substantially orthogonal to the conveying direction in order from the paper sheets at the end In other words, there is a take-out roller that is taken out in the direction in which the floor belts are arranged, and an auxiliary roller that is arranged on the upstream side of the take-out roller along the take-out direction and that rotates in contact with the paper that is taken out from the take-out position. That.

  In the take-out device having the above structure, when the downstream end portion along the take-out direction of the paper sheet at the take-out position is inclined toward the backup plate from the upstream end portion, the downstream side on the downstream side in the take-out direction The moving speed of the floor belt is made higher than the moving speed of the downstream floor belt on the upstream side in the take-out direction, and the posture of the paper sheet is corrected so as to be straight along the take-out direction. On the contrary, when the upstream end along the take-out direction of the paper sheet at the take-out position is inclined toward the backup plate from the downstream end, the moving speed of the downstream floor belt upstream in the take-out direction Is made faster than the moving speed of the downstream floor belt on the downstream side in the take-out direction, and the posture of the paper sheet is corrected so as to be straight along the take-out direction.

However, when the posture of the paper sheet is corrected so as to be straight along the take-out direction as described above, the paper sheet is taken out in a state of being strongly pressed against the auxiliary roller, and the paper is taken out from the auxiliary roller. A load in the direction opposite to the take-out direction is applied to the leaves. For this reason, the feeding force by the take-out roller is offset by that amount, causing a problem that the feeding force transmission efficiency is lowered and the feeding operation becomes unstable.
Japanese Patent Laying-Open No. 2005-145671 (paragraph [0038], FIG. 6)

  An object of the present invention is to provide a paper sheet take-out device that can reduce the load resistance in the direction opposite to the take-out direction and can take out paper sheets stably.

  In order to achieve the above object, a paper sheet take-out device according to the present invention comprises a mounting table for placing a plurality of paper sheets in a standing position with their lower end sides in contact with each other, and on the mounting table. A backup plate that urges a plurality of paper sheets placed on the stacking direction to feed the paper sheets at the end of the stacking direction to the take-out position, and is exposed from the mounting table along the stacking direction. And the exposed portion moves toward the take-out position along the stacking direction, so that the lower end side of the paper sheet moves toward the take-out position and is substantially orthogonal to the stacking direction. The first and second floor belts separated in the take-out direction, the take-out roller that rotates in contact with the paper sheets supplied to the take-out position, and takes out the paper sheets in the take-out direction, and the take-out roller More above An auxiliary roller that is spaced upstream of the sheet direction and is opposed to the take-out position, and the pressing force between the take-out roller and the paper sheet is relatively greater than the pressing force between the auxiliary roller and the paper sheet. It is characterized by having been enlarged.

  According to the above invention, since the pressing force of the take-out roller and the paper sheet on the downstream side in the paper take-out direction is relatively larger than the press force of the auxiliary roller and the paper sheet on the upstream side, the take-out roller is rotated. Thus, the load resistance acting on the paper sheet from the auxiliary roller when taking out the paper sheet can be reduced, and the paper sheet can be taken out stably.

  Since the paper sheet take-out device of the present invention has the above-described configuration and operation, the load resistance in the direction opposite to the take-out direction can be reduced, and the paper sheets can be taken out stably.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a plan view of a paper sheet take-out device 1 (hereinafter simply referred to as a take-out device 1) according to the first embodiment of the present invention as seen from above, and FIG. A front view of the take-out device 1 is shown. The take-out device 1 is for taking out, for example, a plurality of postal items P (paper sheets) put together and sending them to a subsequent processing unit.

  As shown in FIG. 1, the take-out device 1 includes a supply device 10 that supplies the postal matter P to the take-out position, and a feeding device 20 that feeds the postal matter P supplied to the take-out position one by one.

  The supply device 10 has a flat mounting table 2 on which the lower end sides of a plurality of pieces of mail P that are put in a lump in a state (stacked state) arranged in a plane direction are brought into contact with each other and placed in an upright position. A backup plate 3 is provided at the right end of the mounting table 2 in the drawing (that is, the end portion away from the take-out position). The backup plate 3 is erected in a substantially vertical direction substantially orthogonal to the mounting table 2.

  The backup plate 3 urges the mail items P in the arrangement direction, that is, the stacking direction (the arrow T1 direction in FIG. 1), and supplies all the mail items P in the arrow T1 direction. As a result, the postal matter P at the front end in the supply direction is supplied to the take-out position at the left end of the mounting table 2 in the drawing.

  Two endless downstream floor belts 4a and 4b (first and second floor belts) are provided in the vicinity of the take-out position. The downstream floor belts 4a and 4b are arranged in parallel and spaced apart from each other in a direction (in the direction of arrow T2 in FIG. 1) substantially orthogonal to the supply direction (in the direction of arrow T1) of the postal matter P. Are extended along the conveying direction.

  As shown in FIG. 2, each of the downstream floor belts 4a and 4b is wound around a plurality of pulleys 5 and stretched, and a part of the floor belt 4a and 4b is exposed from the mounting table 2 toward the lower end side of the postal matter P. Yes. The downstream floor belts 4a and 4b are traveled by a single floor motor 6, and the portion exposed upward from the mounting table 2 contacts the lower end side of the postal matter P, and the postal matter P is directed to the take-out position. It is supposed to move.

  In the present embodiment, two pulleys 5a and 5b having different diameters are coaxially attached to the drive shaft 6a of the motor 6 and are arranged on the downstream side along the take-out direction (arrow T2 direction) of the postal matter P. 4a is wound around a pulley 5a (first pulley) having a relatively large diameter, and a downstream floor belt 4b disposed on the upstream side in the arrow T2 direction is wound around a pulley 5b (second pulley) having a relatively small diameter. . That is, the traveling speeds of the two downstream floor belts 4a and 4b are made different by changing the diameters of the pulleys 5a and 5b that transmit the driving force of the motor 6. As a result, the conveyance force of the postal matter P by the downstream floor belt 4a on the downstream side in the take-out direction T2 is made larger than the conveyance force of the postal matter P on the downstream side floor belt 4b on the upstream side in the take-out direction T2.

  Further, one endless upstream floor belt 7 is provided between the downstream floor belts 4a and 4b. The upstream floor belt 7 is wound around a plurality of pulleys 5 and is stretched, and is positioned and arranged so that a part of the upstream floor belt 7 is exposed upward from the mounting table 2. The upstream floor belt 7 is driven by a motor 8 so that the exposed portion moves along the accumulation direction toward the take-out position.

  The downstream floor belts 4 a and 4 b protrude above the upstream floor belt 7 in the vicinity of the take-out position, and the postal matter P moved by the upstream floor belt 7 is delivered to the downstream floor belt 4. It is designed to be transported. In other words, the exposed portions of the downstream side floor belts 4a and 4b can move only a few mail items P close to the take-out position among the mail items P placed on the placing table 2, whereas the upstream side The exposed portion of the floor belt 7 comes into contact with the lower end side of the postal matter except for several postal items P close to the take-out position among all the postal items P placed on the placing table 2. . In other words, the postal matter P on the side close to the backup plate 3 is moved by the upstream floor belt 7, delivered to the downstream floor belt 4, and supplied to the take-out position.

  The backup plate 3 is slidably attached to a shaft 9 extending along the supply direction T1 of the postal matter P, and the vicinity of the lower end thereof is connected to the upstream floor belt 7. The backup plate 3 moves in the supply direction T1 of the mail P along the shaft 9 by the movement of the upstream floor belt 7. That is, the backup plate 3 is moved toward the take-out position by the motor 8 at the same speed as the upstream floor belt 7.

  At the position where the postal matter P is taken out, the feeding device 20 is arranged adjacently. The feeding device 20 includes a take-out roller 11 that contacts the postal matter P supplied to the take-out position by the supply device 10 and rotates in the take-out direction T2. As shown in FIGS. 2 and 3A, the take-out roller 11 includes a lower take-out roller 11a that rotates in contact with the vicinity of the lower end side of the postal matter P supplied to the take-out position, and the lower take-out roller 11a. The upper take-out roller 11b is provided so as to be separated from the upper side and independently rotatable. As shown in FIG. 3A, the upper take-out roller 11b is provided so as to be spaced apart from the lower take-out roller 11a so as to be in contact with the smallest postal matter Pmin handled by the take-out device 1.

  Each take-out roller 11a, 11b (hereinafter sometimes collectively referred to as take-out roller 11) is arranged such that its rotation axis extends in a substantially vertical direction, and its outer peripheral surface is in contact with the surface of the postal matter P. It is designed to rotate. The take-out roller 11 is arranged at a position biased to the downstream side in the take-out direction of the postal matter P so that the postal matter P of all sizes can be taken out. Then, by rotating the take-out roller 11 in the counterclockwise direction in FIG. 1, the postal matter P supplied to the take-out position is orthogonal to the stacking direction and in a substantially horizontal direction (the direction of arrow T2 in FIG. 1) (hereinafter, This direction is referred to as a take-out direction), that is, it is taken out upward in FIG.

  The rotation shafts of the take-out rollers 11 a and 11 b are rotatably attached to the tip of the first arm 12. A rotating tip of the second arm 13 is rotatably attached to the proximal end of the first arm 12, and a torque-controlled servo motor 14 is attached to the proximal end of the second arm 13. In addition, a rotation tip of the third arm 15 is rotatably attached to substantially the center of the first arm. Thus, the take-out roller 11 can be moved substantially in parallel with the supply direction of the postal matter P, that is, the stacking direction by such a parallel link mechanism. It is pressed against the supplied mail item P.

  Further, a motor 17 is connected to the rotation shaft of each take-out roller 11a, 11b via three timing belts 16a, 16b, 16c, and the take-out roller 11 is rotated by rotating the motor 17 in a predetermined direction. It rotates in the direction of taking out the postal matter P.

  An auxiliary roller 18 is provided at a position spaced upstream of the take-out roller 11 along the take-out direction of the postal matter P supplied to the take-out position. The auxiliary roller 18 includes three roller portions 18a, 18b, and 18c that are provided apart from each other along the rotation axis thereof. Each roller part 18a, 18b, 18c can be rotated independently with respect to a rotating shaft extending substantially in the vertical direction, and the outer peripheral surface of the roller part 18a comes into contact with the surface of the postal matter P to be taken out. It is designed to go around with the object P. For example, as shown in FIG. 3B, the auxiliary roller 18 is used to pick up a postal item upstream from the position where the takeout roller 11 comes into contact with the postal item P when a relatively large postal item P is fed out. Functions to support P.

  The rotating shaft of the auxiliary roller 18 is rotatably attached to the swinging tip of the swinging arm 19. The swing arm 19 rotates around a rotation shaft 19a provided at the approximate center thereof. A spring 19b is connected to the base end portion of the swing arm 19, and urges the swing arm 19 in the counterclockwise direction in the drawing around the rotation shaft 19a. That is, the swing arm 19 presses the auxiliary roller 16b attached to the tip of the swing arm 19 against the postal matter P supplied to the take-out position with a constant pressure.

  Further, a feed roller and a reverse roller (not shown) are provided on the downstream side in the take-out direction of the postal matter P supplied to the take-out position. The feed roller is provided at a position where it comes into contact with the surface on which the take-out roller 11 of the postal matter P to be taken out contacts, and feeds the postal matter P by rotating with the postal matter P sandwiched between it and the reverse roller. To do. The reverse roller functions to separate the second and subsequent postal items P taken out by the postal item P fed by the feed roller by applying a torque in the direction opposite to the take-out direction to the postal item P.

  A guide plate 21 is provided at a position adjacent to the rear side of the supply device 10 described above, that is, the downstream side (upward in FIG. 1) of the mounting table 2 along the take-out direction T2 of the postal matter P. This guide plate 21 guides the leading end T2 of the postal matter P supplied to the takeout position by the backup plate 3, the upstream floor belt 7, and the downstream floor belts 4a and 4b. This guide plate 21 is slightly curved toward the downstream side in the take-out direction T2 in the vicinity of the take-out position of the postal matter P.

  Further, the feeding device 20 described above has a guide plate 22 disposed so as to face the postal matter P supplied to the take-out position by the supply device 10. The guide plate 22 has a plurality of openings (not shown) that expose the take-out roller 11 and the auxiliary roller 18 toward the supply device 10. Further, as shown in FIG. 2, the guide plate 22 is slightly bent in the direction away from the supply device 10 in the vicinity of the roller portion 18 c positioned at the uppermost position of the auxiliary roller 18. As a result, even when the postal matter P placed in a standing position on the placement table 2 falls to the feeding device 20 side, the vicinity of the upper end of the postal matter P does not come into contact with the guide plate 22. Yes.

Here, with reference to FIG. 4 and FIG. 5, the effect | action and effect of the taking-out apparatus 1 which concern on 1st Embodiment mentioned above are demonstrated.
In the take-out device 1 described above, of the two downstream floor belts 4a and 4b of the supply device 10, the downstream floor belt 4a (hereinafter simply referred to as the floor belt 4a) on the downstream side in the take-out direction T2 of the postal matter P. ) Is larger than the diameter of the pulley 5b around which the downstream floor belt 4b (hereinafter simply referred to as the floor belt 4b) on the upstream side in the take-off direction T2 is wound, and the two pulleys 5a 5b is attached to the rotating shaft 6a of a single motor 6 so that the traveling speed of the two floor belts 4a and 4b is different. Specifically, the traveling speed (moving speed) of the floor belt 4a is made faster than the traveling speed (moving speed) of the floor belt 4b. As a result, the conveyance force of the postal matter P by the floor belt 4a becomes larger than the conveyance force by the floor belt 4b, and the pressing force between the take-out roller 11 and the postal matter P is the pressing force between the auxiliary roller 18 and the postal matter P. Greater than force.

  For example, when the traveling speed of the upstream floor belt 7 is V1, the traveling speed of the floor belt 4a is V2, and the traveling speed of the floor belt 4b is V3, as described above, the floor belt 4a is connected to the other floor belts 7, 4b. 4 is driven at a higher traveling speed (V1 = V3 <V2), the postal matter P that is substantially parallel to the takeout direction T2 as shown in FIG. Is changed to a posture pressed against the take-out roller 11.

  Although not shown here, according to the present embodiment, even if the postal matter P is thrown in the reverse direction (the posture in which the rear end of the postal matter P is taken out against the auxiliary roller 18), it is fed out. As the operation continues, the posture of the postal matter P gradually changes as shown in FIG. 5 (so that the front end side of the postal matter P in the take-out direction is pressed against the take-out roller 11).

  On the other hand, in the above-described conventional apparatus, the postal matter supplied to the takeout position is controlled so as to be substantially parallel to the takeout direction. The pressing force of the auxiliary roller is substantially the same, and the load resistance of the auxiliary roller that is rotated by taking out the postal matter acts on the postal matter. In addition, when the postal matter is controlled to be substantially parallel to the take-out direction as in the prior art, the postal matter easily comes into contact with a guide plate or the like, and load resistance due to contact with other members occurs. Thus, when a load resistance in the direction opposite to the take-out direction acts on the postal matter, the postal feeding operation becomes unstable.

  However, the postal matter P can be separated from the auxiliary roller 18 by controlling the posture of the postal matter P supplied to the taking-out position as in the taking-out position 1 of the present embodiment (or pressed with a weak force). Load resistance from the auxiliary roller 18 and the guide plate 22 can be reduced, the feeding force by the take-out roller 11 can be efficiently applied to the postal matter P, and the postal matter P can be taken out stably.

  In the present embodiment, the traveling speed V1 of the upstream floor belt 7 and the traveling speed V3 of the floor belt 4b are made the same, and the traveling speed V2 of the floor belt 4a is made faster (V1 = V3 <V2). However, it is only necessary to satisfy the relationship (V3 <V2) in which at least the traveling speed V2 of the floor belt 4a is higher than the traveling speed V3 of the floor belt 4b, and the traveling speed V1 of the upstream floor belt 7 is not related.

  Next, a paper sheet takeout device 23 (hereinafter simply referred to as the takeout device 23) according to a second embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected about the component which functions similarly to the taking-out apparatus 1 mentioned above here, and the detailed description is abbreviate | omitted.

  As shown in FIG. 6, the take-out device 23 has two downstream floor belts 24 and 25 that are driven by the single motor 6 at the same traveling speed. In the first embodiment described above, the traveling speeds of the downstream side floor belts 4a and 4b are made different by changing the diameters of the pulleys 5a and 5b. In this embodiment, the pulleys 5a and 5b are attached to the rotating shaft 6a of the motor 6. The two pulleys 5 have the same diameter, and the two downstream floor belts 24 and 25 travel at the same speed.

  Instead, in the present embodiment, the friction coefficient of the surface of the downstream floor belt 24 (first floor belt) (hereinafter simply referred to as the floor belt 24) on the downstream side in the take-out direction of the postal matter P is calculated as the postal matter P. The friction coefficient of the surface of the downstream floor belt 25 (second floor belt) (hereinafter simply referred to as the floor belt 25) on the upstream side in the take-out direction is relatively larger. Thereby, the frictional force (first frictional force) that acts on the lower end side of the postal matter P from the floor belt 24 is larger than the frictional force (second frictional force) that acts on the lower end side of the postal matter P from the floor belt 25. did. For this reason, the conveyance force for conveying the postal matter P by the floor belt 24 is relatively larger than the conveyance force for conveying the postal matter P by the floor belt 25.

  For example, the gravity of the postal matter P acting on the floor belts 24 and 25 is W, the friction coefficient of the surface of the floor belt 24 is μ1, the conveying force by the floor belt 24 is F1, the friction coefficient of the surface of the floor belt 25 is μ2, and the floor belt. Assuming that the conveyance force by 25 is F2, since μ1> μ2, F1 (= μ1 · W)> F2 (= μ2 · W).

  By differentiating the friction coefficients of the floor belts 24 and 25 in this way, even if the traveling speed of the floor belt 24 and the traveling speed of the floor belt 25 are the same, the conveying force F1 of the floor belt 24 is conveyed by the floor belt 25. As a result, the pressing force between the take-out roller 11 and the postal matter P can be made relatively larger than the pressing force between the auxiliary roller 18 and the postal matter P.

  That is, as shown in FIG. 8, even if the postal matter P is supplied to the takeout position in a posture substantially parallel to the takeout direction T2, as shown in FIG. After being supplied to the take-out position, the vicinity of the tip of the take-out direction T2 of the postal matter P at the take-out position can be pressed relatively strongly against the take-out roller 11, and the posture of the postal matter P can be changed as shown.

  Although not shown here, the posture of the postal matter P may not change as shown in FIG. 9, but the conveying force by the floor belt 24 acting near the leading end of the postal matter P in the take-out direction is the postal matter. Since it is relatively stronger than the conveying force by the floor belt 25 acting near the rear end of P in the take-out direction, load resistance from the auxiliary roller 18 acting on the postal matter P and load resistance from the guide plate 22 can be reduced, and the take-out roller 11 feeding force can be efficiently applied to the postal matter P, and the feeding operation can be stabilized.

  Next, a paper sheet takeout device 31 (hereinafter simply referred to as the takeout device 31) according to a third embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected here about the component which functions similarly to the taking-out apparatus 23 which concerns on 2nd Embodiment mentioned above, and the detailed description is abbreviate | omitted.

  As shown in FIG. 10 and FIG. 11, the take-out device 31 is a downstream floor on the downstream side in the take-out direction, instead of making the friction coefficients of the surfaces of the floor belts 24, 25 different from those in the second embodiment described above. A plurality of claw-like projections 33 (profiles) are provided on the surface of the belt 32 (first floor belt) (hereinafter simply referred to as the floor belt 32). The plurality of protrusions 33 act on the lower end sides of the postal matter P placed on the mounting table 2, and the lower end sides of each postal matter P are fitted between the protrusions 33 and moved in the stacking direction T1. That is, also in the present embodiment, the conveying force of the postal matter P by the floor belt 32 is relatively larger than the conveying force of the postal matter P by the floor belt 25 having no protrusion.

  For this reason, for example, as shown in FIG. 12, even when the postal matter P is supplied to the takeout position in a posture substantially parallel to the takeout direction T2, as shown in FIG. After the article P is supplied to the take-out position, the vicinity of the tip of the take-out direction T2 of the postal matter P at the take-out position can be pressed relatively strongly against the take-out roller 11, and the posture of the postal matter P can be changed as shown in the figure. it can.

  Therefore, also in the present embodiment, the pressing force between the postal matter P and the take-out roller 11 is more relative to the pressing force between the postal matter P and the auxiliary roller 18 as in the second embodiment described above. The load resistance from the auxiliary roller 18 acting on the postal matter P and the load resistance from the guide plate 22 can be reduced, the feeding force of the take-out roller 11 can be efficiently applied to the postal matter P, and the feeding out The operation can be stabilized.

  Next, a paper sheet takeout device 41 (hereinafter simply referred to as the takeout device 41) according to a fourth embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected here about the component which functions similarly to the taking-out apparatus 23 which concerns on 2nd Embodiment mentioned above, and the detailed description is abbreviate | omitted.

  As shown in FIGS. 14 and 15, the take-out device 41 is arranged in the take-out direction downstream instead of making the friction coefficients of the surfaces of the two downstream floor belts 24, 25 different as in the second embodiment described above. The downstream floor belt 42 (first floor belt) (hereinafter simply referred to as the floor belt 42) on the side of the downstream side downstream belt 25 (second floor belt) (hereinafter simply referred to as the floor belt 42) in the take-out direction. It is characterized by being relatively larger than the floor belt 25).

  Thus, by making the width of the floor belt 42 relatively wider than the width of the floor belt 25, the length of contact of the floor belt 42 with the lower end side of the postal matter P can be made relatively long. The frictional force acting on the side can be made relatively large. For this reason, also in the present embodiment, the conveying force of the postal matter P by the floor belt 42 is relatively larger than the conveying force of the postal matter P by the floor belt 25.

  For example, as shown in FIG. 16, even if the postal matter P is supplied to the takeout position in a posture substantially parallel to the takeout direction T2, as shown in FIG. After being supplied to the take-out position, the vicinity of the tip of the take-out direction T2 of the postal matter P at the take-out position can be pressed relatively strongly against the take-out roller 11, and the posture of the postal matter P can be changed as shown.

  Accordingly, also in the present embodiment, as in the second and third embodiments described above, the pressing force between the mail piece P and the take-out roller 11 is changed between the mail piece P and the auxiliary roller 18. The load resistance from the auxiliary roller 18 acting on the postal matter P and the load resistance from the guide plate 22 can be reduced, and the feeding force of the take-out roller 11 can be efficiently applied to the postal matter P. The feeding operation can be stabilized.

  Next, a paper sheet take-out device 51 (hereinafter simply referred to as the take-out device 51) according to a fifth embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected here about the component which functions similarly to the taking-out apparatus 23 which concerns on 2nd Embodiment mentioned above, and the detailed description is abbreviate | omitted.

  As shown in FIGS. 18 and 19, the take-out device 51 does not change the friction coefficients of the surfaces of the two downstream floor belts 24 and 25 as in the second embodiment described above, but takes out the take-out direction. The friction coefficient and width of the surface of the downstream floor belt 52 (first floor belt) (hereinafter simply referred to as the floor belt 52) on the downstream side are used to determine the downstream floor belt 25 (second floor belt) on the upstream side in the take-out direction. ) (Hereinafter, simply referred to as the floor belt 25), and an elongated belt-like friction member 53 is disposed adjacent to the floor belt 25.

  The friction member 53 functions to apply a certain frictional force to the lower end side of the postal matter P placed on the placement table 2 in a standing position, and extends along the supply direction T1 of the postal matter P. . In particular, the friction member 53 is positioned and disposed at a position facing the auxiliary roller 18 which is a main cause of load resistance acting in the direction opposite to the direction in which the postal matter P is taken out, and is disposed slightly apart from the guide plate 22. Has been. That is, by disposing the friction member 53, a frictional force in the direction opposite to the supply direction T1 is applied to the lower end side of the postal matter P supplied toward the take-out position, and the conveying force by the adjacent floor belt 25 is applied. It works to weaken.

  On the other hand, if the friction member 53 is extended to the take-out position, when the postal matter P supplied to the take-out position is taken out from the take-out position in the arrow T2 direction, A frictional force in the opposite direction will be generated, causing a problem. For this reason, in the present embodiment, the friction member 53 is arranged at a position separated from the guide plate 22 so that the friction member 53 does not interfere with the postal matter P taken out from the take-out position, and is taken out in the direction of the arrow T2. The undesired load resistance is not given to the postal matter P to be displayed.

  As described above, by reducing the conveyance force acting from the floor belt 25 (friction member 53) on the upstream side in the take-out direction from the conveyance force acting on the downstream side in the take-out direction of the postal matter P at the take-out position, As in the above-described embodiments, the pressing force between the postal matter P and the take-out roller 11 can be made relatively larger than the pressing force between the postal matter P and the auxiliary roller 18 and acts on the postal matter P. The load resistance from the auxiliary roller 18 and the load resistance from the guide plate 22 can be reduced, the feeding force of the take-out roller 11 can be efficiently applied to the postal matter P, and the feeding operation can be stabilized.

  For example, as shown in FIG. 20, even when the postal matter P is supplied to the takeout position in a posture substantially parallel to the takeout direction T2, as shown in FIG. In addition, the posture of the postal matter P can be changed, and the vicinity of the leading end T2 of the postal matter P at the takeout position can be pressed relatively strongly against the takeout roller 11.

  Next, a paper sheet take-out device 61 (hereinafter simply referred to as the take-out device 61) according to a sixth embodiment of the present invention will be described with reference to FIGS. Here, the same reference numerals are given to components that function in the same manner as the take-out device 1 according to the first embodiment described above, and detailed description thereof will be omitted.

  As shown in FIGS. 22 and 23, the take-out device 61 of the present embodiment drives a downstream floor belt 4a (first floor belt) (hereinafter simply referred to as the floor belt 4a) downstream in the take-out direction. And a floor motor 63 (second motor) for driving a floor motor 62 (first motor) to be driven and a downstream floor belt 4b (second floor belt) (hereinafter simply referred to as a floor belt 4b) upstream in the take-out direction. Motor).

  In other words, the take-out device 61 is characterized by having two floor motors 62 and 63 for independently running the two downstream floor belts 4a and 4b. That is, in the first embodiment described above, the traveling speeds of the downstream side floor belts 4a and 4b are made different by changing the diameters of the pulleys 5a and 5b. However, in this embodiment, two independent floors are used. The motors 62 and 63 are driven to vary the traveling speed of the floor belts 4a and 4b.

  For example, when the traveling speed of the upstream floor belt 7 is V1, the traveling speed of the floor belt 4a is V2, and the traveling speed of the floor belt 4b is V3, as described above, the floor belt 4a is connected to the other floor belts 7, 4b. Since the mail P is driven at a higher traveling speed (V1 = V3 <V2) than the postal matter P almost parallel to the takeout direction T2 as shown in FIG. Is changed to a posture pressed against the take-out roller 11.

  Although not shown here, according to the present embodiment, even if the postal matter P is thrown in the reverse direction (the posture in which the rear end of the postal matter P is taken out against the auxiliary roller 18), it is fed out. As the operation continues, the posture of the postal matter P gradually changes as shown in FIG. 25 (so that the front end side of the postal matter P in the take-out direction is pressed against the take-out roller 11).

  As described above, also in this embodiment, the same effect as that of the first embodiment described above can be obtained. That is, by changing the traveling speed of the floor belts 4a and 4b, the postal matter P can be separated from the auxiliary roller 18 (or can be pressed with a weak force), and the load from the auxiliary roller 18 and the guide plate 22 can be reduced. The resistance can be reduced, the feeding force by the take-out roller 11 can be efficiently applied to the postal matter P, and the postal matter P can be taken out stably.

  In the present embodiment, the traveling speed V1 of the upstream floor belt 7 and the traveling speed V3 of the floor belt 4b are made the same, and the traveling speed V2 of the floor belt 4a is made faster (V1 = V3 <V2). However, it suffices to satisfy the relationship (V3 <V2) in which at least the traveling speed V2 of the floor belt 4a is higher than the traveling speed V3 of the floor belt 4b, and the traveling speed V1 of the upstream floor belt 7 does not matter.

  Next, a paper sheet takeout device 71 (hereinafter simply referred to as the takeout device 71) according to a seventh embodiment of the present invention will be described with reference to FIGS. Here, the same reference numerals are given to components that function in the same manner as the take-out device 61 of the above-described sixth embodiment, and detailed description thereof is omitted.

  As shown in FIG. 26 and FIG. 27, the take-out device 71 detects that the take-out roller 11 protruding from the guide plate 22 toward the take-out position has been pushed beyond a certain threshold value. , And a second detector 73 that detects that the auxiliary roller 18 protruding from the guide plate 22 toward the take-out position is pushed beyond a certain threshold value. The take-out device 71 of the present embodiment has the same configuration as the take-out device 61 described above, except that these two detection units 72 and 73 are provided.

  The first detection unit 72 is provided to detect the presence of the postal matter P in the vicinity of the guide plate 22 in the vicinity of the takeout roller 11, and in the present embodiment, presses the takeout roller 11 toward the postal matter P. The protruding position of the take-out roller 11 is detected by an encoder 72 built in the servo motor 14 for this purpose. That is, in the present embodiment, the servo motor 14 also serves as the first detection unit 72.

  The second detection unit 73 is provided to detect the presence of the postal matter P in the vicinity of the guide plate 22 in the vicinity of the auxiliary roller 18, and in the present embodiment, the rotation shaft of the auxiliary roller 18 can be rotated. The photo interrupter 73 detects that the attached swing arm 19 has been rotated to a specific rotation position, and detects that the auxiliary roller 18 has been pushed beyond a certain threshold.

  Here, an encoder is used as the first detection unit 72, but a photo interrupter may be used, and there is a method using a proximity sensor or the like. In the following description, the first and second detection units 72 and 73 are turned on when the take-out roller 11 and the auxiliary roller 18 are pushed by the postal matter P exceeding a specific threshold, respectively, and the postal matter P It is assumed that the signal is turned off when it is separated from the guide plate 22.

  Hereinafter, the operation of the above-described take-out device 71 will be described with reference to the flowchart of FIG. 28 and the operation explanatory diagrams of FIGS. Here, the traveling speed of the upstream floor belt 7 is V1, the traveling speed of the downstream floor belt 4a is V2, and the traveling speed of the downstream floor belt 4b is V3.

  When a plurality of postal items P to be processed are put into the take-out device 71 and the supply operation is started (FIG. 28, step 1), the downstream floor belt 4a on the downstream side in the take-out direction is changed to the upstream floor belt 7. And it is driven at a traveling speed (normal speed: V1 = V3 <V2) faster than the downstream side floor belt 4b.

  Thereafter, the state of the postal matter P supplied to the take-out position is monitored via the first detection unit 72 and the second detection unit 73 (step 2), and is in any state of FIGS. Is determined (step 3). Based on the determination result, the floor motor 62 (first motor) and the floor motor 63 (second motor) are driven and controlled, and the driving of the floor belt 4a and the floor belt 4b is controlled (step 4).

  Thereafter, the processing of steps 2 to 4 is repeated (steps 2 to 4) until the postal matter P to be supplied disappears on the mounting table 2 (step 5; YES), and the supply operation is terminated. Although not shown in the flowchart of FIG. 28, the upstream floor belt 7 is repeatedly driven and stopped in the same manner as the downstream floor belt 4a.

  More specifically, for example, as shown in FIG. 29, when the postal matter P is separated from the take-out roller 11 and the auxiliary roller 18, that is, the first detection unit 72 and the second detection unit 73 are each OFF. In this case, since the floor belt 4a is operated at a higher traveling speed than the floor belt 4b (V2> V3), by continuing to drive the floor belts 4a and 4b, the postal matter P is taken out as shown in FIG. The position near the front end in the direction changes to a posture pressed against the take-out roller 11.

  If it is determined in step 3 above that the postal matter P is in the posture shown in FIG. 30, that is, only the first detection unit 72 is ON, the postal matter P has an appropriate posture. Therefore, the floor belt 4a and the floor belt 4b are stopped.

  If it is determined in step 3 that the postal matter P is in the posture shown in FIG. 31, that is, if only the second detection unit 73 is ON, the front end of the postal matter P in the take-out direction is placed on the take-out roller 11. The floor belt 4a (and the upstream side floor belt 7) is driven so as to be pressed. At the same time, in order to reduce the load resistance applied from the auxiliary roller 18 to the postal matter P, the floor belt 4b facing the auxiliary roller 18 is reversed. By this operation, the postal matter P changes from the posture shown in FIG. 31 to the posture shown in FIG.

  Further, when it is determined in step 3 that the postal matter P has the posture shown in FIG. 32, that is, when both the first and second detection units 72 and 73 are ON, the postal matter P is already taken out. Since the vicinity of the tip is pressed against the take-out roller 11, the floor belt 4a (and the upstream side floor belt 7) is stopped. At the same time, the floor belt 4b is reversed to reduce the load resistance applied to the postal matter P from the auxiliary roller 18. By this operation, the postal matter P changes from the posture shown in FIG. 32 to the posture shown in FIG.

  As described above, according to the present embodiment, it is possible to reduce the load resistance applied to the postal matter P from the auxiliary roller 18 or the guide plate 22 regardless of the posture of the postal matter P put into the taking-out device 71. The feeding force of the roller 11 can be efficiently applied to the postal matter P.

  In the present embodiment, the traveling speed V1 of the upstream floor belt 7 and the traveling speed V3 of the floor belt 4b are made the same, and the traveling speed V2 of the floor belt 4a is made faster (V1 = V3 <V2). Each floor motor 8, 62, 63 is driven and controlled, but at least the traveling speed of the floor belt 4a on the downstream side in the take-out direction of the postal matter P should be made faster than the traveling speed of the upstream floor belt 4b (V3 <V2). ) The traveling speed V1 of the upstream floor belt 7 is not related. In the present embodiment, the operation (drive / stop timing) of the upstream floor belt 7 is matched with the floor belt 4a. However, the operation timing of the upstream floor belt 7 may be matched with the floor belt 4b.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments. For example, you may delete some components from all the components shown by embodiment mentioned above. Furthermore, you may combine the component covering different embodiment suitably.

The top view which shows schematic structure of the taking-out apparatus which concerns on 1st Embodiment of this invention. The front view of the taking-out apparatus of FIG. The side view (a) which shows the positional relationship which each roller of the taking-out apparatus of FIG. 1 contacts a mail piece, and a top view (b). Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. The top view which shows schematic structure of the taking-out apparatus which concerns on 2nd Embodiment of this invention. The front view of the taking-out apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the extraction apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. The top view which shows schematic structure of the taking-out apparatus which concerns on 3rd Embodiment of this invention. The front view of the taking-out apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. The top view which shows schematic structure of the taking-out apparatus which concerns on 4th Embodiment of this invention. The front view of the taking-out apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. The top view which shows schematic structure of the taking-out apparatus which concerns on 5th Embodiment of this invention. The front view of the taking-out apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. The top view which shows schematic structure of the taking-out apparatus which concerns on 6th Embodiment of this invention. The front view of the taking-out apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. Operation | movement explanatory drawing for demonstrating operation | movement of the taking-out apparatus of FIG. The top view which shows schematic structure of the taking-out apparatus which concerns on 7th Embodiment of this invention. The front view of the taking-out apparatus of FIG. The flowchart for demonstrating operation | movement of the taking-out apparatus of FIG. FIG. 27 is an operation explanatory diagram for explaining the operation of the take-out device of FIG. 26; FIG. 27 is an operation explanatory diagram for explaining the operation of the take-out device of FIG. 26; FIG. 27 is an operation explanatory diagram for explaining the operation of the take-out device of FIG. 26; FIG. 27 is an operation explanatory diagram for explaining the operation of the take-out device of FIG. 26;

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Paper sheet taking-out apparatus, 2 ... Loading table, 3 ... Backup plate, 4a, 4b ... Downstream floor belt, 5 ... Pulley, 6, 8 ... Floor motor, 7 ... Upstream floor belt, 10 ... Feeding device, DESCRIPTION OF SYMBOLS 11 ... Take-out roller, 18 ... Auxiliary roller, 20 ... Feeding device, 22 ... Guide plate, 33 ... Projection, 53 ... Friction member, P ... Mail.

Claims (12)

A mounting table for placing a plurality of paper sheets in a standing position with their lower end sides in contact with each other;
A backup plate that urges a plurality of paper sheets placed on the mounting table in the stacking direction and supplies the paper sheets at the end in the stacking direction to the take-out position;
The lower end side of the paper sheet is exposed to the take-out position by being exposed from the mounting table and extending along the stacking direction and moving the exposed portion toward the take-out position along the stacking direction. A first floor belt and a second floor belt separated in a take-out direction substantially orthogonal to the accumulation direction,
A take-out roller that rotates in contact with the paper sheet supplied to the take-out position and takes out the paper sheet in the take-out direction;
An auxiliary roller that is spaced from the take-out roller upstream in the take-out direction and is opposed to the take-out position,
A paper sheet take-out apparatus, wherein a pressing force between the take-out roller and the paper sheet is relatively larger than a pressing force between the auxiliary roller and the paper sheet.   2. The sheet take-out apparatus according to claim 1, wherein a moving speed of the first floor belt on the downstream side in the take-out direction is set higher than a moving speed of the second floor belt on the upstream side. A single motor for driving the first and second floor belts;
A second pulley attached to the rotation shaft of the motor and wound around the second floor belt;
A first pulley having a diameter larger than that of the second pulley, which is attached to a rotating shaft of the motor and wound with the first floor belt;
The paper sheet takeout device according to claim 2, further comprising:   The sheet take-out device according to claim 2, further comprising first and second motors for independently driving the first and second floor belts. A first detection unit that detects that the take-out roller has been pushed beyond a threshold value;
A second detector for detecting that the auxiliary roller has been pushed in excess of a threshold;
A control unit that drives and controls the first and second motors based on the detection results of the first and second detection units;
The paper sheet takeout device according to claim 4, further comprising:   The first frictional force acting on the lower end side of the paper sheet from the first floor belt on the downstream side in the take-out direction is the second frictional force acting on the lower end side of the paper sheet from the second floor belt on the upstream side. The paper sheet takeout device according to claim 1, wherein the paper takeout device is larger.   7. The paper sheet takeout device according to claim 6, wherein a friction coefficient of the first floor belt surface is relatively larger than a friction coefficient of the second floor belt surface.   The paper sheet take-out device according to claim 6, wherein the width of the first floor belt is relatively larger than the width of the second floor belt.   2. The paper sheet takeout device according to claim 1, wherein a plurality of protrusions acting on a lower end side of the paper sheets are provided on a surface of the first floor belt on the downstream side in the takeout direction.   2. The paper sheet according to claim 1, wherein a friction member that applies a frictional force to a lower end side of the paper sheet is extended in the accumulation direction adjacent to the second floor belt on the upstream side in the take-out direction. Kind take-out device.   The paper sheet takeout device according to claim 10, wherein the friction member is disposed at a position facing the auxiliary roller.   The paper sheet takeout device according to claim 10 or 11, wherein the friction member is arranged at a position where the friction member does not interfere with a lower end side of the paper takeout in the takeout direction from the takeout position. .

Images