The present invention relates a cross conveying device for mounting a planar-view-rectangle sheet, which has been conveyed from a preceding devise toward a first direction, onto a conveyance surface and conveying the sheet toward a second direction perpendicular to the first direction while moving it along an alignment guide.
The above cross conveying device for mounting a planar-view-rectangle sheet, which has been conveyed from a preceding devise toward a first direction, onto a conveyance surface and conveying the sheet toward a second direction perpendicular to the first direction while moving it along an alignment guide, has been disclosed in Patent Document 1. And the alignment guide in Patent Document 1 has a lot of rotatable spherical bodies which are provided so as to mount onto a sheet abutting on a guide surface of the alignment guide. Other similar techniques are disclosed in Patent Documents 2-4.
Patent Document 1: Japanese Unexamined Patent Application Publication No. 60-34835
Patent Document 2: Japanese Unexamined Utility Model Publication No. 59-57430
Patent Document 3: Japanese Unexamined Patent Application Publication No. 2007-106558
Patent Document 4: Japanese Unexamined Patent Application Publication No. 3-138245
Problems to be Solved by the Invention
However, in a case shown in
An object of the present invention is to provide a cross conveying device which can mount the sheet onto the conveyance surface reliably and convey the sheet while guiding it by the alignment guide, even if the sheet is easy to break.
Means for Solving the Problems
The present invention is a cross conveying device for mounting a planar-view-rectangle sheet, which has been conveyed from a preceding devise toward a first direction, onto a conveyance surface and conveying the sheet toward a second direction perpendicular to the first direction while moving it along the alignment guide, wherein the alignment guide comprises a guide surface which abuts on a front edge of the first direction of the sheet and guides the sheet, and a rotatable spherical body which mounts onto the sheet abutting on the guide surface and applies a load to the sheet,
In the present invention, when the sheet having been conveyed from the preceding device is mounted onto the conveyance surface, the alignment guide is located at the retraction position, therefore, it does not result that the sheet jams short of the spherical bodies of the alignment guide. Also, after the sheet is mounted onto the conveyance surface, the alignment guide is located at the guide position, therefore, the front edge of the sheet abuts on the guide surface reliably. Therefore, the cross conveying device of the present application can mount the sheet onto the conveyance surface reliably and convey the sheet while guiding it by the alignment guide, even if the sheet is easy to break.
10: cross conveying device, 100: sheet, 101: front edge (folded line), 20: conveyance surface, 3: alignment guide, 31: guide surface, 321, 331: spherical body, 4: alignment guide moving mechanism, 41: reciprocating mechanism
Namely, the cross conveying device 10 comprises a discharging roller 1 which sandwiches the sheet from above and below and discharges it toward the first direction, a lot of conveying rollers 2 which mount and convey the sheet having been discharged, and the alignment guide 3 which guides a front edge (i.e. a folded line) of the first direction of the sheet to be conveyed.
Also, as shown in
The conveying roller 2 is provided so that a conveyance direction (direction as indicated by the arrow C) is inclined toward the alignment guide 3 with respect to the second direction. The conveyance surface 20 is comprised of a lot of conveying rollers 2.
As shown in
As shown in
Specifically, the alignment guide 3 includes the guide surface 31, a flange part 3C which supports the spherical bodies 321, 331 rotatably, and a flange part 3D which supports the spherical bodies 322, 332 rotatably.
As shown in
The rotation roller 322 is supported rotatably by the flange part 3D by means of the horizontal rotation axis 327 which extends toward the direction perpendicular to the second direction. A gap D1 is provided between the spherical body 321 and the rotation roller 322. The gap D1 is set to a size that the spherical body 321 can move upward in order to mount onto the sheet 100. In the same way, the rotation roller 332 is also supported rotatably by the flange part 3D by means of the horizontal rotation axis 337. A gap D2 is provided between the spherical body 331 and the rotation roller 332. The gap D2 is set to a size that the spherical body 331 can move upward in order to mount onto the sheet 100. Incidentally, D1 and D2 may be same or different.
The alignment guide moving mechanism 4 includes a reciprocating mechanism 41 which can reciprocate the alignment guide 3 along the first direction, and a movement control part (not shown) which controls the reciprocating mechanism 41.
Specifically, as shown in
The movement control part includes a sensor 5 which is provided adjacent to the upstream side of the discharging roller 1. The sensor 5 is adapted to detect a front edge 101 and a rear edge 102 of the sheet 100 being conveyed toward the first direction. When the movement control part detects a time when the sheet 100 begin to mount onto the conveyance surface 20, the movement control part controls the reciprocating mechanism 41 so as to move the alignment guide 3 from the guide position to the retraction position, and when the movement control part, detects a time when the sheet 100 has finished mounting onto the conveyance surface 20, the movement control part controls the reciprocating mechanism 41 so as to move the alignment guide 3 from the retraction position to the guide position. Incidentally, “a time when the sheet 100 begin to mount onto the conveyance surface 20” is “a time when the sensor 5 detects the front edge 101 of the sheet 100”, and also “a time when the sheet 100 has finished mounting onto the conveyance surface 20” is “a time when the predetermined time T has passed since the sensor 5 detects the rear edge 102 of the sheet 100”. This predetermined time T means the time after the sensor 5 detects the rear edge 102 and before the sheet 100 completely falls onto the conveyance surface 20.
Next, it is described an operation of the cross conveying device having the above-described construction.
Firstly, in a state that the conveying roller 2 is stopped, the sheet 100 with the front edge 101 located in front is conveyed from the preceding device toward the first direction. And when the sensor 5 detects the front edge 101 of the sheet 100 as shown in
Next, when the sensor 5 detects the rear edge 102 of the sheet 100, the movement control part stops the reciprocating mechanism 41 until the predetermined time T is passed. According to this, as shown in
Next, after the predetermined time T is passed, the movement control part controls the reciprocating mechanism and moves the alignment guide 3 from the retraction position to the guide position, as shown in
In this time, due to the gap D2 between the spherical body 331 and the rotation roller 332, the spherical body 331 can move upward, and also due to the gap D1 between the spherical body 321 and the rotation roller 322, the spherical body 321 can move upward. Therefore, the alignment guide 3 can move to the guide position without difficulty. Furthermore, the spherical bodies 331, 321 move upward, however, they can not get through upward because of the rotation rollers 332, 322.
And then, the conveying roller 2 begins operating. According to this, the sheet 100 is conveyed toward the direction as indicated by the arrow C, namely, the sheet 100 is conveyed toward the second direction while being conveyed to the alignment guide 3 side and being guided by the guide surface 31. At this time, because a load is applied to the sheet 100 from above by the spherical bodies 331, 321, the sheet 100 receives a conveying force strongly by the conveying roller 2, therefore, the sheet 100 is conveyed reliably without slipping.
Incidentally, when the sheet 100 is conveyed by the conveying rollers 2 and completely discharged from the conveyance surface 20, the conveying rollers 2 stop and the cross conveying device 10 becomes into the state as shown in
As described above, in the cross conveying device 10 having the above-mentioned construction, when the sheet 100 having been conveyed from the preceding devise is mounted onto the conveyance surface 20, the alignment guide 3 is located at the retraction position, therefore, the sheet 100 may not jam short of the spherical bodies 331, 321 of the alignment guide 3. And after the sheet 100 is mounted onto the conveyance surface 20, the alignment guide 3 is located at the guide position, therefore, the front edge 101 of the sheet 100 abuts on the guide surface 31 reliably.
Therefore, according to the cross conveying device 10 having the above-mentioned construction, even if the sheet 100 is easy to break, the device 10 can mount the sheet 100 onto the conveyance surface 20 and convey it while guiding it by the alignment guide 3 reliably.
Modified Configuration
Even if the sheet 100 is easy to break, the cross conveying device 10 of the present invention can mount the sheet 100 onto the conveyance surface 20 and convey it while guiding it by the alignment guide 3 reliably, therefore, the cross conveying device 10 is industrially very useful.
Number | Date | Country | Kind |
---|---|---|---|
2009-101027 | Apr 2009 | JP | national |
2009-101029 | Apr 2009 | JP | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
---|---|---|---|---|
PCT/JP2010/056155 | 4/5/2010 | WO | 00 | 10/14/2011 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2010/119786 | 10/21/2010 | WO | A |
Number | Date | Country |
---|---|---|
59-57430 | Apr 1984 | JP |
60-34835 | Feb 1985 | JP |
3-138245 | Jun 1991 | JP |
2007-106558 | Apr 2007 | JP |
2010-30766 | Feb 2010 | JP |
Number | Date | Country | |
---|---|---|---|
20120049443 A1 | Mar 2012 | US |