KR20160118411A

KR20160118411A - Medium conveying apparatus

Info

Publication number: KR20160118411A
Application number: KR1020150045992A
Authority: KR
Inventors: 김경수; 김석원; 이종우
Original assignee: 노틸러스효성 주식회사
Priority date: 2015-04-01
Filing date: 2015-04-01
Publication date: 2016-10-12

Abstract

The purpose of the present invention is to provide a medium conveying device capable of improving the conveying quality of a medium to be conveyed by uniformly transmitting the elastic force of a pressurizing means to a pinch roller while simultaneously reducing the number of parts of the pressurizing means for elastically supporting the pinch roller toward a driving roller. To achieve the purpose, the medium conveying device (100) according to the present invention comprises: a conveying guide (110) consisting of a first conveying guide (111) and a second conveying guide (112), which are arranged with a gap to form a conveying path (113) of a medium between the first and second conveying guides; multiple first rollers (120) which partially protrude toward the conveying path (113) after penetrating the first conveying guide (111) and are rotated by receiving the power of a motor; multiple second rollers (130) protruding toward the conveying path (113) so that part of the multiple second rollers can come into contact with the first roller (120) by penetrating the second conveying guide (112), rotating in connection with the rotation of the first roller (120), and rising and falling to correspond to the thickness of the medium when the medium passes between the first rollers (120) and the second rollers; and the pressurizing means (140) for elastically supporting the second rollers (130) toward the first rollers (120). The pressurizing means (140) is a torsion spring for elastically supporting a shaft (131) which is combined by penetrating the center of rotation of the multiple second rollers (130), toward the first rollers (120).

Description

[0001] MEDIUM CONVEYING APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a medium conveying apparatus, and more particularly, to a medium conveying apparatus which is provided so that a plurality of rollers face each other with a conveying path therebetween, and conveys a medium passing therebetween.

BACKGROUND ART [0002] Financial automation devices such as a banknote depositing / dispensing machine, a check or certificate returning machine, and a paper currency counter, which are generally used in financial institutions, are equipped with a medium transporting device for transporting paper media.

1 is a view schematically showing a state in which a medium is transported along a transport path in a conventional medium transport apparatus. In the medium conveying apparatus, the medium conveying path 1 is provided with a driving roller 2, 2a for receiving the power of the motor for conveying the paper sheets P, P 'such as banknotes, checks, The media P and P 'are sandwiched between the drive rollers 2 and 2a and the pinch rollers 4 and 4a so as to be conveyed to the conveying path 1 .

The drive roller 2 and the pinch roller 4 are rotated in a state of being in contact with each other when the medium P is not sandwiched between the drive roller 2 and the pinch roller 4 as shown in the left side of Fig. And each of the shafts 3 and 5 is maintained at a constant distance.

On the other hand, when the medium P 'passes between the driving roller 2a and the pinch roller 4a as shown in the right side of FIG. 1, the driving roller 2a and the shaft 3a are maintained in a constant position The pinch roller 4a and the shaft 5a move upward in correspondence with the thickness of the medium P 'in the state of the pinch rollers 4a and the shaft 5a. On the upper side of the pinch roller 4a and the shaft 5a, A pressing means for elastically supporting the pinch roller 4a so as to be pressed toward the driving roller 2a side is provided.

In the prior art related to the medium conveying apparatus having the above-described pressing means, Korean Patent Laid-Open Publication No. 10-2012-0041465 discloses a cantilever-shaped straight portion and a hook- Lt; / RTI > A body portion having an engaging portion inserted into the snap fit to be engaged with a protrusion of the snap fit, and a snap fit outer side support portion for reinforcing the outer side of the snap fit to limit the degree of freedom of the free end of the snap fit. An integrally formed combination; And an elastic member elastically supporting the coupling body by pressing the coupling body toward the protruding portion side of the snap fit.

Another example of the prior art is disclosed in Japanese Patent Laid-Open No. 10-162203, in which a conveying path is formed by a pair of opposing plate-like guide bodies, and on the surface opposite to the opposite surface of the above- A plurality of driving roller shafts are provided at predetermined intervals along the conveying direction of the medium, and a plurality of driving rollers are mounted at predetermined intervals along the axial direction on the driving roller shaft A plurality of tensioning rollers are mounted on the tensioning roller shaft at predetermined intervals along the axial direction, and elastic members for applying an elastic force toward the driving roller shaft are connected to both ends of the tensioning roller shaft, respectively.

In the medium conveying apparatuses disclosed in Korean Patent Laid-Open Nos. 10-2012-0041465 and 10-162203, both ends of a shaft on which a pinch roller or a tension roller is mounted are driven by an elastic member in the form of a coil spring, Or in a direction toward a shaft on which the driving roller is mounted.

According to the configuration in which both ends of the shaft on which the pinch roller or the tension roller is mounted are supported by the coil spring, a large elastic force acts on both ends of the shaft, but a relatively small elastic force acts on the central portion of the shaft, There is a problem in that the target medium can not be accurately sandwiched and transported.

In addition, according to the configuration of the prior art, since the elastic members are respectively connected to both ends of the shaft and the parts for supporting the elastic members are additionally provided, the number of parts for elastically supporting the pinch roller or the tension roller is increased, And disassembling and assembling work for maintenance is troublesome.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to reduce the number of parts of the pressing means for elastically supporting the pinch rollers toward the driving rollers, and to transmit the elasticity of the pressing means uniformly to the pinch rollers, And to provide a medium conveying device capable of improving the quality of a medium.

Another object of the present invention is to provide a medium conveying apparatus which can simplify the maintenance of the parts by simplifying the assembly structure in which the pinch rollers, the shaft and the pressurizing means are mounted on the conveying guide.

In order to achieve the above-mentioned object, the medium conveying apparatus 100 according to the present invention includes a first conveying guide 111 and a second conveying guide 111 which are arranged so as to be spaced apart from each other and form a conveying path 113 of the medium therebetween, (112); A plurality of first rollers (120) protruding through the first conveying guide (111) and partially protruding toward the conveying path (113) and rotated by receiving the power of the motor; The first roller 120 protrudes toward the conveying path 113 so that a part thereof passes through the second conveying guide 112 and contacts the first roller 120 and is rotated in conjunction with the rotation of the first roller 120, A plurality of second rollers (130) lifted and lowered in accordance with the thickness of the medium when the medium passes through the first roller (120); And a pressing means 140 for elastically supporting the second roller 130 toward the first roller 120 side, wherein the pressing means 140 rotates the rotation center of the plurality of second rollers 130, And a torsion spring for elastically supporting the shaft 131 coupled to the first roller 120 side.

The pressing unit 140 may be provided on both sides of the single type shaft 131 or on both sides of the shaft 131 divided into the two sides, 1 roller 120 side.

The pressing unit 140 includes a first coil part 141 and a second coil part 142 which are spaced apart from each other and through which the stationary shaft 150 is inserted; A first extension 143 extending from one end of the first coil part 141 to support one side of the shaft 131; A second extension 144 extending from one end of the second coil part 142 to support the other side of the shaft 131; And a connecting part 145 extending from the other end of the first coil part 141 and the other end of the second coil part 142 and connected to each other and supported by the second conveying guide 112.

The first extended portion 143 and the second extended portion 144 may be mounted on one side of the shaft 131 to support the flat portion 131a.

The second conveying guide 112 may be provided with a lifting and supporting unit 160 for preventing the second roller 130 and the shaft 131 from separating from each other and guiding the lifting movement.

The lifting and supporting part 160 includes a shaft body supporting member 161 that is received in such a manner that the shaft 131 can be lifted and lowered and is provided at both sides of the shaft body supporting member 161 to support both ends of the shaft 131 And a shaft end supporting member 162 for supporting the shaft.

The shaft body support member 161 may be formed with an extension support groove 161a through which the first extension portion 143 and the second extension portion 144 are inserted and supported.

A guide rib 161b may be formed on the inner surface of the shaft body support member 161 to reduce friction when the shaft 131 is moved up and down.

According to the medium conveying apparatus of the present invention, the pressing means for elastically supporting the pinch roller (second roller) toward the driving roller (first roller) is constituted by a torsion spring as a single part, The two extension portions and the second extension portions are configured to elastically support the two side portions of the shaft or the two divided shafts constituted by a single unit so that the number of parts of the pressing means is reduced and the elastic force of the pressing means is uniformly transmitted to the pinch rollers So that the conveying quality of the conveyance target medium can be improved.

In addition, by providing the pinch roller and the lifting / lowering portion for guiding the lifting and lowering of the shaft to the conveying guide, it is possible to prevent the pinch roller from separating from the shaft and simplify the assembling structure between the pinch roller and the shaft and the pressing means, There is an effect that it becomes easy.

1 is a schematic view showing a state in which a medium is transported along a transport path in a conventional medium transport apparatus,
2 is a perspective view schematically showing a medium transporting apparatus according to the present invention,
FIG. 3 is a plan view showing a main part of a medium conveying apparatus according to the present invention,
4 is a side view schematically showing a medium transporting apparatus according to the present invention,
FIG. 5 is an exploded perspective view for explaining a connection structure between a second roller, a pressurizing unit, and a lifting support unit constituting the medium conveying apparatus according to the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 to 5, the medium conveying apparatus 100 according to the present invention includes a conveying guide 110 including a first conveying guide 111 and a second conveying guide 112 which are vertically spaced apart from each other, A plurality of driving rollers 120 (hereinafter referred to as "first rollers") that are rotated by receiving power from a motor (not shown) A plurality of pinch rollers 130 (hereinafter, referred to as "second rollers") provided to move up and down according to the thickness of the medium when the medium P passes through the first roller 120, And a pressing means 140 for elastically supporting the second roller 130 so as to be pressed in a direction in contact with the first roller 120.

The second conveying guide 112 is formed with a lifting and supporting portion 160 for preventing the second rollers 130 and the shaft 131, which is inserted through the rotation centers of the second rollers 130, .

The first conveying guide 111 and the second conveying guide 112 support the both sides of the medium in conveying the conveying medium (for example, banknotes, checks, passbooks, gift certificates, And the second conveying guide 112, a conveying path for the medium 113 is provided.

4, a first through hole 111a is formed in the first conveying guide 111 so that a part of the first roller 120 passes through the conveying path 113, and the second conveying guide 112 are formed with a second through-hole 112a through which a part of the second roller 130 passes and protrudes toward the conveying path 113 side.

The first rollers 120 are spaced apart from each other by a predetermined distance along the axial direction so as to correspond to the width of the medium conveyed to the first shaft 121 provided laterally on the lower side of the first conveying guide 111, And the second roller 130 rotatably supports the second shaft 131 along the axial direction on the second shaft 131 installed in the lateral direction in parallel with the first shaft 121 on the upper side of the second conveying guide 112, (120).

In the present embodiment, the second shafts 131-1 and 131-2 are divided and formed on both sides, and the second rollers 130 are divided into second shafts 131-1 and 131-2 As shown in Fig.

In another embodiment, the second shaft 131 is formed in a single shape, and the plurality of second rollers 130 are coupled to the outer circumferential surface of the second shaft 131 at predetermined intervals along the axial direction .

The pressing means 140 is constituted by a torsion spring made of a single part capable of exerting an elastic force at two places at positions spaced apart on both sides.

3, the pressing unit 140 is coupled with the outer circumferential surface of the fixed shaft 150 disposed in the lateral direction in parallel with the first shaft 121 and the second shaft 131 in a coiled manner A first coil section 141 and a second coil section 142 which are disposed on both sides of the first coil section 141 so as to be spaced apart from each other and support or support one side of a single shaft 131 extending from one end of the first coil section 141, A first extending portion 143 for supporting a shaft 131-1 formed at one side thereof, a second extending portion 143 for supporting the other side portion of the single shaft 131 extending from one end of the second coil portion 142, And a second extending portion 144 extending from the other end of the first coil portion 141 and the other end of the second coil portion 142 to be connected to each other, And a connecting portion 145 supported on the conveying path 112.

The first extending portion 143 and the second extending portion 144 of the pressing means 140 are mounted on one side of the second shaft 131 (131-1, 131-2) 131a may be formed. According to this configuration, the first extended portion 143 and the second extended portion 144 can be stably mounted on the upper surface of the plane portion 131a in a straight line, and the driving force of the first roller 120 The second shafts 131-131-1 and 131-2 can be prevented from being arbitrarily rotated when the second shafts 131 and 131-1 and 131-2 are transmitted to the second roller 130, ) Of the second shaft 131 (131-1, 131-2) is not smoothly moved due to friction between the first shaft 131 (131-1, 131-2) and the abrasion of parts due to friction can be minimized.

According to the configuration of the pressing means 140 as described above, both side portions of the single-type shaft 131 are supported by the first extended portion 143 and the second extended portion 144 of the torsion spring made of a single component, The first shaft 131-1 and the second shaft 131-2 can be supported by the first shaft 131-1 and the second shaft 131-2 at the same time. Therefore, compared with the structure in which both sides of the shaft are supported by the coil spring, Can be reduced and the assembly structure can be simplified.

The lifting and supporting unit 160 is configured to prevent the second roller 130 and the second shaft 131 from separating from each other and guide the lifting and lowering movement. A shaft end supporting member 161 and a shaft end supporting member provided on both sides of the shaft body supporting member 161 with a second through hole 112a therebetween to support both side ends of the second shaft 131 162).

The shaft body support member 161 may be formed with an extension support groove 161a through which the first extension portion 143 and the second extension portion 144 of the pressing means 140 are inserted and supported . The first extension 143 and the second extension 144 are inserted into the extension support groove 161a and supported on both sides of the second shaft 131 (131-1, 131-2) The first extended portion 143 and the second extended portion 144 of the pressing means 140 are supported by the side walls of the extended portion support groove 161a so as to be moved up and down at a predetermined position .

A plurality of guide ribs 161b may be formed on the inner surface of the shaft body support member 161 to protrude inward along the longitudinal direction. Accordingly, when the medium P passes between the first roller 120 and the second roller 130 as shown in FIG. 4, the second roller 130 and the second shaft 131 coupled thereto Since the outer side surface of the second shaft 131 is in line contact with the projecting end of the guide rib 161b when raising and lowering, friction can be minimized so that the second shaft 131 can be smoothly moved up and down, The wear of the shaft body supporting member 161 and the shaft body supporting member 161 can be minimized.

As described above, the present invention is not limited to the above-described embodiments, and various changes and modifications may be made without departing from the scope of the present invention as defined in the appended claims. And such modifications are within the scope of the present invention.

1: conveying path 2,2a: drive roller
3,3a: Shaft 4, 4a: Pinch roller
5, 5a: shaft 100: medium conveying device
110: conveying guide 111: first conveying guide
111a: first through hole 112: second conveying guide
112a: second through hole 113:
120: first roller (driving roller) 121: first shaft
130: second roller (pinch roller) 131: second shaft (shaft)
131a: flat portion 140: pressing means (torsion spring)
141: first coil part 142: second coil part
143: first extension part 144: second extension part
145: connection part 150: fixed shaft
160: lifting and supporting portion 161: shaft body supporting member
161a: extension portion support groove 162: shaft end support member

Claims

A medium conveying apparatus which is provided so that a plurality of rollers are opposed to each other and conveys a medium passing therebetween,
A conveying guide 110 formed of a first conveying guide 111 and a second conveying guide 112 arranged so as to be spaced apart from each other and forming a conveying path 113 of the medium therebetween;
A plurality of first rollers (120) protruding through the first conveying guide (111) and partially protruding toward the conveying path (113) and rotated by receiving the power of the motor;
The first roller 120 protrudes toward the conveying path 113 so that a part thereof passes through the second conveying guide 112 and contacts the first roller 120 and is rotated in conjunction with the rotation of the first roller 120, A plurality of second rollers (130) lifted and lowered in accordance with the thickness of the medium when the medium passes through the first roller (120); And
And pressing means (140) for elastically supporting the second roller (130) toward the first roller (120) side,
Wherein the pressing means 140 is a torsion spring for elastically supporting the shaft 131 connected to the rotation center of the plurality of second rollers 130 toward the first roller 120. [ .

The method according to claim 1,
The shaft 131 is provided in a single shape or a shape divided into two sides,
Wherein the pressing unit (140) resiliently supports each of the shafts (131) divided on both sides of the single type shaft (131) or both sides thereof toward the first roller (120) side.

The method according to claim 1,
The pressing means (140)
A first coil portion 141 and a second coil portion 142 which are spaced apart from each other and through which the stationary shaft 150 is inserted;
A first extension 143 extending from one end of the first coil part 141 to support one side of the shaft 131;
A second extension 144 extending from one end of the second coil part 142 to support the other side of the shaft 131; And
And a connecting portion 145 extending from the other end of the first coil portion 141 and the other end of the second coil portion 142 to be connected to each other and supported by the second conveying guide 112 A medium conveying device.

The method according to claim 1,
Wherein a flat portion (131a) is formed on one side of the shaft (131) to receive and support the first extension portion (143) and the second extension portion (144).

The method according to claim 1,
Wherein the second transport guide (112) is provided with a lifting and supporting unit (160) for preventing the second roller (130) and the shaft (131) from coming off and guiding the lifting movement.

6. The method of claim 5,
The lifting and supporting part 160 includes a shaft body supporting member 161 that is received in such a manner that the shaft 131 can be lifted and lowered and is provided at both sides of the shaft body supporting member 161 to support both ends of the shaft 131 And a shaft end supporting member (162) for supporting the shaft end supporting member (162).

The method according to claim 6,
Wherein the shaft body support member (161) is formed with an extension support groove (161a) in which the first extension part (143) and the second extension part (144) are inserted and supported.

The method according to claim 6,
Wherein a guide rib (161b) is formed on the inner side surface of the shaft body support member (161) to reduce friction when the shaft (131) moves up and down.