JP2012254806A - Pallet for loading paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a pallet while being directed in a desired direction, in a non-stop paper feeding device and in a non-stop paper ejecting device, irrespective of the direction of paper on the pallet in a following process.SOLUTION: The pallet 10 loads a plurality of papers P, and also the paper P is transferred between itself and a temporary table 15 having bars 15a. The pallet 10 is provided with a plurality of first grooves 11a enabling the bars 15a of the temporary table 15 to be entered along one direction on an upper surface of the pallet. Similarly, the pallet 10 is provided with a plurality of second grooves 11b enabling the bars 15a of the temporary table to be entered along the direction perpendicular to the one direction on the upper surface of the pallet.

Description

  The present invention relates to a paper stacking pallet that is used in a non-stop paper supply / discharge device and that stacks a plurality of sheets and transfers the sheets to and from a temporary receiving base having a plurality of rods.

  2. Description of the Related Art Conventionally, a non-stop paper supply / discharge device has been used in order to continuously feed and discharge paper processed by a sheet-fed machine without stopping it halfway. Such a non-stop paper supply / discharge device has a lifting platform movable in the vertical direction and a pallet on the lifting platform. For example, when paper is discharged, the processed paper that is sequentially discharged toward the top surface of the pallet is stacked on the top surface of the pallet in the thickness direction while the elevator is lowered and the top surface of the paper stacked on the pallet is Keep the height almost constant. When a predetermined amount of paper is placed on the pallet, a temporary cradle is arranged so that it can be pulled out horizontally above the paper loaded on the pallet, and the ejected paper is placed on the temporary cradle. Remove the pallet on which the paper is loaded from the elevator. Then, a pallet on which no paper is loaded is placed on a lifting platform, the lifting platform is raised to a position where the pallet is close to the temporary tray, and the temporary tray is pulled out in the horizontal direction and loaded on the temporary tray. Paper is moved to the top of the pallet.

  By the way, the pallet on which the plurality of discharged sheets are stacked is then sent to the next process, and the next process is performed on the sheets on the pallet.

  Conventionally, the pallet is provided with a groove for the temporary cradle to enter, but since the groove on the pallet is provided in only one direction, the orientation of the pallet in the non-stop feed / discharge device is also It will be fixed in one direction. For this reason, it is necessary to select a pallet to be used in the non-stop paper supply / discharge device in accordance with the orientation of the paper on the pallet in the next process, and the work is complicated.

JP 2001-139163 A

  The present invention has been made in consideration of such points, and a paper stacking pallet that can be used in a non-stop paper supply / discharge device without considering the orientation of the paper on the pallet in the next process is provided. The purpose is to provide.

  The present invention relates to a paper stacking pallet for stacking a plurality of sheets of paper and transferring a sheet to and from a temporary support base having a plurality of stick bodies. Are formed, and a plurality of second grooves into which the rods of the temporary cradle can enter are formed along another direction orthogonal to one direction. This is a paper loading pallet.

  The present invention is the paper stacking pallet, wherein the arrangement pitch of the first grooves is the same as the arrangement pitch of the second grooves.

  In the present invention, the pallet has a pallet base and a pallet main body provided on the pallet base and having a plurality of first grooves and a plurality of second grooves formed on the upper surface, The sheet loading pallet is characterized in that a chamfered portion that descends toward the surface is formed.

  As described above, according to the present invention, the pallet can be used in a desired direction in the non-stop paper feeding device or the non-stop paper ejection device regardless of the orientation of the paper on the pallet in the next process.

FIG. 1A is a plan view showing a non-stop paper discharge apparatus in which a pallet is incorporated according to the first embodiment of the present invention, and FIG. 1B shows a non-stop paper discharge apparatus in which the direction of the pallet is changed. FIG. 1C is a plan view showing a pallet. 2A is a plan view showing the pallet, FIG. 2B is a B direction arrow diagram of FIG. 2A, and FIG. 2C is a C direction arrow diagram of FIG. 2A. FIG. 3A is a plan view showing a non-stop paper discharge apparatus in which a pallet is incorporated, and FIG. 3B is a plan view showing the pallet. 4A is a plan view showing the pallet, FIG. 4B is a B direction arrow diagram of FIG. 4A, and FIG. 4C is a C direction arrow diagram of FIG. 4A. FIGS. 5A and 5B are views showing the operation of the non-stop paper discharge device. FIG. 6A is a view showing a non-stop paper discharge device as a comparative example, and FIG. 6B is a plan view showing the pallet. FIG. 7 is a view showing a non-stop paper discharge apparatus in which a pallet is incorporated according to the second embodiment of the present invention. FIG. 8 is a diagram showing a non-stop paper feeding device in which a pallet is incorporated according to the third embodiment of the present invention.

First Embodiment Next, a first embodiment of the present invention will be described with reference to FIGS.

  First, a non-stop paper discharge device in which a paper stacking pallet is incorporated will be described.

  As shown in FIGS. 1 (a), (b), (c) and FIGS. 5 (a) and 5 (b), the non-stop paper discharge device 20 includes a lift 13 and a book placed on the lift 13. The sheet loading pallet 10 according to the invention, a lifting device 14 for moving the lifting platform 13 in the vertical direction, and a pair of left and right rails 16 disposed above the pallet 10 and retractable from above the pallet 10 by a moving mechanism (not shown). And a temporary cradle 15 supported by the rail 16. In addition, the sheet P that has been printed in the previous process is conveyed by the conveyance roller 22, and the sheet P conveyed by the conveyance roller 22 is stacked on the pallet 10 via the discharge roller 21.

  As shown in FIGS. 1 (a), (b), (c) and FIGS. 5 (a), (b), the temporary support 15 is a plurality of cylindrical rods arranged in parallel at a predetermined interval. 15a and a U-shaped connecting member 15b in which one ends of these rods 15a are connected to each other, and as a whole form a comb shape.

  Next, a paper loading pallet 10 according to the present invention will be described with reference to FIGS.

  As shown in FIGS. 1A, 1B and 1C, on the upper surface of the pallet 10, a plurality of first grooves 11a for receiving the rods 15a of the temporary support 15 are arranged in parallel at a predetermined interval. Similarly, a second groove 11b orthogonal to the first groove 11a is provided on the upper surface of the pallet 10 in parallel with a predetermined interval. Each of the grooves 11a and 11b has a depth larger than the diameter of the rod 15a so that the uppermost portion of the received rod 15a is lower than the upper surface of the pallet 10.

  Next, the pallet 10 will be further described with reference to FIGS. 1 (a), (b), and (c) and FIGS. 2 (a) and (b).

  The pallet 10 includes a pallet base 12 made of synthetic resin and a wooden pallet main body 11 provided on the pallet base 12 made of synthetic resin. The pallet 10 has a planar rectangular shape as a whole. As described above, a plurality of first grooves 11a and a plurality of second grooves 11b are provided on the upper surface. Of these, each first groove 11a extends from one long side of the pallet 10 toward the other long side, and each second groove 11b extends from one short side of the pallet 10 toward the other short side. The plurality of first grooves 11a and the plurality of second grooves 11b are orthogonal to each other.

  The arrangement pitch P1 of the first groove 11a and the arrangement pitch P2 of the second groove 11b are the same, and the arrangement pitch P1 of the first groove 11a and the arrangement pitch P2 of the second groove 11b are The arrangement pitch of each rod 15a is also the same.

  With such a configuration, either the first groove 11a or the second groove 11b can be arranged so as to face the transport direction of the paper P. Moreover, even if the direction is wrong, damage to the groove of the pallet can be reduced.

  Next, the operation of the present embodiment having such a configuration will be described. As shown in FIGS. 1 (a), (b), (c) and FIGS. 5 (a) and 5 (b), at the start of printing, the elevator 13 on which an empty pallet 10 is placed is disposed at the upper limit position. . Note that the rail 16 is retracted, and the temporary cradle 15 does not exist above the pallet 10.

  In this state, the paper P printed in the previous process is transported by the transport roller 22, and the paper P is sent from the discharge roller 21 to the non-stop paper discharge device 20, and the top surface of the pallet 10 of the non-stop paper discharge device 20. Are sequentially stacked in the thickness direction. At this time, the elevator 13 is lowered by a predetermined stroke, and the upper surface of the paper P on the pallet 10 is maintained at a substantially constant height (see FIG. 5A). When a predetermined amount of paper P is placed on the pallet 10, a paper counter or sensor (not shown) detects this, and the rail 16 is disposed above the pallet 10 and the lifting platform 13 reaches the lower limit position. Descend. At that time, the sheet P starts to accumulate on the upper surface of the temporary support 15 supported by the rail 16 (see FIG. 5B).

  In this case, the pallet 10 is arranged on the lifting platform 13 so that the short side thereof faces the conveyance direction of the paper P, and the rod 15a of the temporary receiving table 15 can be inserted into the first groove 11a on the pallet 10. (FIGS. 1A and 1C).

  Next, the operator removes the pallet 10 on which the paper P is loaded from the elevator 13 and places an empty pallet 10 on the elevator 13 instead. Next, the lift 13 is raised, the first groove 11a of the pallet 10 receives the bar body 15a of the temporary receiving base 15, and the upper surface of the pallet 10 pushes up the lower surface of the paper P supported by the bar 15a. Is lifted from the rod 15a. The lifting platform 13 stops at a position immediately before the bottom surface of the first groove 11a is in contact with the lowermost portion of the rod 11a. In this way, the paper P on the temporary tray 15 is transferred onto the pallet 10. Next, the rail 16 that supports the temporary support 15 is retracted from the pallet 10.

  The pallet 10 on which the paper P is loaded is then sent to a subsequent process, and the post-process for the paper P is performed in the subsequent process. In this case, each of the pallet 10 and the paper P has a short side facing the transport direction L of the paper P, and with respect to the paper P, the post-processing is performed with the short side facing the transport direction L of the paper P. For example, a process such as a punching process or a surface processing process is performed.

  On the other hand, when post-processing is performed on the paper P with its long side facing the transport direction L of the paper P, the pallet 10 is placed on the elevator 13 in advance and the long side of the paper P is transported in the transport direction L of the paper P. It is placed so as to face (FIG. 1B). In this case, the paper P is placed on the pallet 10 so that the long side thereof faces the transport direction L.

  In the state shown in FIG. 1B, the orientation of the pallet 10 on the lifting platform 13 is orthogonal to the orientation of the pallet 10 shown in FIGS. However, since the second groove 11b orthogonal to the first groove 11a is provided on the upper surface of the pallet 10, the rods 15a of the temporary support 15 are surely entered into the second groove 11b of the pallet 10. Thus, the paper P on the temporary tray 15 can be reliably transferred onto the pallet 10.

  Next, a comparative example of the present invention will be described with reference to FIGS.

  As shown in FIGS. 6A and 6B, when only the groove 11 a extending in one direction from one short side to the other short side is formed on the upper surface of the pallet 10, 10 is required to align the groove 11a of the pallet 10 with the conveyance direction L of the paper P. 6A and 6B, the pallet 10 and the paper P on the lifting platform 13 both have the short sides facing the transport direction L.

  However, when it is desired to align the orientation of the pallet 10 and the paper P on the lifting platform 13 so that the long sides thereof face the transport direction L for convenience of post-process processing, the pallet 10 placed on the lifting platform 13 is used as a pallet. It is necessary to prepare a separate pallet 10 in which the groove 11a on 10 extends from one long side to the other long side.

  On the other hand, according to the present invention, the first groove 11a and the second groove 11b orthogonal to the first groove 11a are provided on the upper surface of the pallet 10, and therefore the same according to the convenience of the post-processing. The pallet 10 can be handled by simply changing the direction of the pallet 10 and placing the pallet 10 on the lifting platform 13. There is no need to prepare a separate pallet 10 for each direction of the pallet 10 and the paper P.

  Next, a modification of the pallet will be described with reference to FIGS. 3 (a), 3 (b) and FIGS. 4 (a), 4 (b), and 4 (c).

  In FIGS. 1A, 1B, and 1C, the pallet 10 has a planar rectangular shape. However, the pallet 10 may have a planar square shape (not limited to this) (FIGS. 3A and 3B). ).

  Further, as shown in FIGS. 4A, 4B, and 4C, the pallet 10 includes a pallet base 12 made of synthetic resin and a wooden pallet body 13 provided on the pallet base 12 made of synthetic resin. Have. Further, chamfered portions 11 </ b> A descending outward are formed on two peripheral edges along the short side of the pallet 10 in the wooden pallet main body 13. You may provide this chamfer 11A in the perimeter of the pallet 10. FIG. By providing the chamfered portion 11 </ b> A on the pallet 10 in this manner, it is possible to prevent the peripheral edge of the pallet 10 from being damaged due to interference between the peripheral edge of the pallet 10 and the rod 15 a of the temporary support 15.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIG.

  In the second embodiment shown in FIG. 7, instead of the paper P printed in the previous process being supplied onto the pallet 10 of the non-stop paper discharge device 20 via the transport roller 22 and the discharge roller 21, The sheet S unwound from the unwinding section 28 is cut by the sheet cutter 27 to become a sheet P, and this sheet P is supplied from the discharge roller 21 onto the pallet 10 via the high-speed conveyor 26 and the low-speed conveyor 25. Only the points differ, and other configurations are substantially the same as those of the first embodiment shown in FIGS. 1 (a), (b), (c) to FIGS. 5 (a), (b).

  In the second embodiment shown in FIG. 7, the same parts as those in the first embodiment shown in FIGS. 1 (a), (b), (c) to FIGS. Detailed description will be omitted.

  In FIG. 7, the sheet S unwound from the unwinding unit 28 is cut by the sheet cutter 27 to become a sheet of paper P, and the paper P is conveyed by the high speed conveyor 26 and the low speed conveyor 25. During this time, the paper P is superimposed on the low-speed conveyor 25 in a scissors shape, and then sent from the discharge roller 21 onto the pallet 10 of the non-stop paper discharge device 20.

  Thereafter, the paper P on the pallet 10 is sent to a subsequent process and subjected to processing such as punching processing or surface processing.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIG.

  The third embodiment shown in FIG. 8 differs only in that the pallet 10 is incorporated into the non-stop paper feeder 30 instead of assembling the pallet 10 into the non-stop paper feeder 20; (A) (b) (c) thru | or FIG. 5 (a) (b) It is substantially the same as 1st Embodiment shown in FIG.

  In the third embodiment shown in FIG. 8, the same parts as those in the first embodiment shown in FIGS. 1 (a), (b), (c) to FIGS. Detailed description will be omitted.

  As shown in FIG. 8, the non-stop paper feeding device 30 includes an elevator 13, a pallet 10 according to the present invention placed on the elevator 13, and an elevator 14 that moves the elevator 13 up and down. A pair of left and right rails 16 disposed above the pallet 10 and retractable from above the pallet 10 by a moving mechanism (not shown), and a temporary support 15 supported by the rails 16 are provided.

  The temporary support 15 has a plurality of columnar rods 15a arranged in parallel at a predetermined interval, and a U-shaped connecting member 15b in which one ends of these rods 15a are connected to each other. And it has a comb shape as a whole.

  In FIG. 8, when starting the paper feeding operation, the elevator 13 on which the pallet 10 on which the sheet P is stacked is placed at the upper limit position. In addition, the rail 16 and the temporary cradle 11 are retracted.

  The paper P on the upper surface of the pallet 10 is sequentially driven by the supply roller 33 and fed by the feed roller 31 and the transport roller 32. At this time, the elevator 13 is raised by a predetermined stroke, and the upper surface of the paper P on the pallet 10 is maintained at a substantially constant height. Thereafter, the paper P sent by the transport roller 32 is subjected to processing such as printing in a subsequent process. When the paper P on the pallet 10 decreases and reaches a predetermined amount, a paper counter or a sensor (not shown) detects this, and the rail 16 and the temporary receiving table 15 are arranged above the pallet 10. At this time, the first groove 11a or the second groove 11b of the pallet 10 receives the rod 15a of the temporary receiving table 15, and the paper P on the pallet 10 is transferred to the temporary receiving table 15 side. Thereafter, the empty pallet 13 is lowered, and the paper P on the temporary receiving table 15 is fed to the feed roller 31 and the transport roller 32 side by the supply roller 33. Thereafter, a new pallet 10 on which the paper P is loaded is prepared below the temporary receiving table 15, and the new pallet 10 is raised. Next, the rail 10 and the temporary receiving table 15 are retracted, and the paper P on the temporary receiving table 15 is transferred onto the paper P loaded on the new pallet 10.

  In the embodiment shown in FIG. 8, an example in which the supply roller 33 is installed is shown. However, the present invention is not limited to this, and a suction pad that sucks the paper P is provided instead of the supply roller 33, and the paper P is sucked by this suction pad. Then, it may be supplied to the feed roller 31 side.

DESCRIPTION OF SYMBOLS 10 Pallet 11 Pallet main body 11a 1st groove | channel 11b 2nd groove | channel 11A Chamfering part 12 Pallet base 13 Lifting stand 15 Temporary receiving stand 15a Rod body 16 Rail 20 Non-stop paper discharge device 30 Non-stop paper feed device

Claims (3)

In a paper stacking pallet for stacking a plurality of sheets and transferring a sheet to and from a temporary receiving table having a plurality of bars,
A plurality of first grooves into which the temporary support bar can enter along one direction are formed on the pallet upper surface, and a plurality of temporary support bar can enter along the other direction perpendicular to one direction. The paper loading pallet is characterized in that the second groove is formed.   2. The paper stacking pallet according to claim 1, wherein the arrangement pitch of the first grooves is the same as the arrangement pitch of the second grooves.   The pallet has a pallet base and a pallet main body provided on the pallet base and formed with a plurality of first grooves and a plurality of second grooves on the upper surface, and descends outward on the periphery of the pallet main body. 3. The paper stacking pallet according to claim 1, wherein a chamfered portion is formed.

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