JP2011195262A - Stacked sheet carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stacked sheet carrying device which accumulates a great number of stacked sheets in a smaller space and carries the stacked sheets without causing the end crease, wrinkle, etc. of the lowest sheet.SOLUTION: Comb-shaped vertically movable duckboards 9, 6, 10a are provided movably vertically at a plurality of positions at equal spaces in the carrying direction. A comb-shaped pass-on duckboard 5a having a length an equivalent of one position where the vertically movable duckboard is arranged, shorter than the total length in the carrying direction to allow the vertically movable duckboard to pass therethrough in the vertical direction is provided reciprocatively over the equivalent of one position in the carrying direction in the midway of the vertically moving stroke of the vertically movable duckboard. The vertically movable duckboard 9 located at the upstream end in the carrying direction is moved vertically from the reception/delivery position of the stacked sheets A above the pass-on duckboard over the lower side of the pass-on duckboard. The vertically movable duckboard 10a located at the downstream end in the carrying direction is moved vertically to a reception/delivery position set in the vertical direction of the pass-on duckboard.

Description

  The present invention relates to a transport device that transports a stack of sheets that have been stacked in a predetermined number after being cut or zigzag folded, and in particular, has a function that can store a plurality of stack sheets during the transport. The present invention relates to an apparatus for conveying an accumulated sheet that conveys accumulated sheets in a progressive manner.

  When the processing speed in the next process of the accumulated sheets accumulated from the printing processing machine after being ejected from the printing processing machine is below the processing speed of the printing processing machine, the operation of the printing processing machine is intermittently performed. It is necessary to stop the operation, and various problems such as workability, product quality stability, and production efficiency due to the intermittent operation occur.

  In addition, when using a roller conveyor or belt transport system to transport from the printing machine to the next process, the product part on the bottom surface side of the stacked sheets will be bent, wrinkles, and lateral displacement between the stacked sheets will occur. There was a problem to do.

JP 2007-254006 A JP 2004-224477 A JP 2009-72968 A

  In the above-described patent document, FIG. 6 of Patent Document 1 discloses that in the conveyance of the accumulated sheets by the roller conveyor, a deviation occurs between the sheets and the collapse of the accumulated state occurs.

  Also, in the apparatus disclosed in Patent Document 2, after cutting and discharging each set by a predetermined amount by zigzag folding, it is sent to the next process by a belt-type discharge conveyor. In addition, there is a problem that end folding or wrinkles occur in the sheet on the lowermost surface portion of the integrated sheet at the transfer section between the individual belt-type conveying devices that are continuously provided, thereby reducing the quality of the product. .

  Further, in Patent Document 3, after cutting and discharging for each set by a predetermined amount by zigzag folding, the belt-type discharge conveyor sends it to the next process, and then transfers and conveys between the belt-type transfer devices provided in series. However, in this apparatus, the apparatus is configured to fold, cut and discharge in accordance with the processing speed capability of the post-processing apparatus after cutting and discharging for each set. When the processing capacity for folding and cutting is high, it is necessary to limit the processing speed according to the post-processing apparatus, and there is a waste that the original capacity of the apparatus cannot be exhibited.

  The present invention has been made in view of the above, so that a large amount of stacked sheets can be stored in a small space, and end folding or wrinkles are not generated on the bottom sheet of the stacked sheets being conveyed. It is an object of the present invention to provide an apparatus for transporting collected sheets.

In order to achieve the above object, an apparatus for conveying an integrated sheet according to the present invention is an apparatus for conveying an integrated sheet that conveys an integrated sheet in one direction. The lifting / lowering slats formed in a shape can be moved up and down, and the length of the lifting / lowering slats is shorter than the total length in the conveying direction by one position where the lifting / lowering slats are arranged, and the lifting / lowering slats can pass vertically. In the middle of the lifting / lowering stroke of the lifting / lowering sword, the progressive feeding slat is provided so as to be able to reciprocate over one position in the conveying direction. By carrying out reciprocating motion alternately and synchronously, the stacked sheets supplied from the sheet supply device are forwardly fed one by one in the transport direction on the slats. .
In this stacking sheet conveying apparatus, the raising and lowering slats positioned at the upstream end in the conveying direction are moved up and down from the position where the stacked sheets are transferred over the progressive feeding slats to the lower side of the progressive feeding slats. It is configured to ascend and descend to a delivery position set in one of the above-mentioned progressively moving slats in the vertical direction.

  The stacked sheet conveying apparatus having the above-described configuration has a configuration in which the upstream end in the transport direction of the next-stage stacked sheet transport apparatus corresponds to the downstream end in the transport direction of the previous-stage stacked sheet transport apparatus, The stacked sheet is transferred from the sheet feeding device to the lifting / lowering saw at the upstream end of the conveying device of the upstreammost stacked sheet conveying device, and the stacked sheet on the lifting / lowering saw at the downstream end of the conveying device of the most downstream stacked sheet is the next step To be discharged.

  According to the apparatus for conveying an accumulated sheet according to the present invention, a large amount of accumulated sheets can be accommodated in the conveying apparatus by arranging the accumulated sheets at each position to be sequentially fed, and has a large storage capacity in a small space. be able to. In particular, by making the transport path multi-stage, it is possible to obtain a more efficient configuration in terms of storage capacity and space. Even when the processing speed of the processing device upstream of this transport device is high, the processing before and after The operation speed of the apparatus can be easily adjusted due to the presence of the storage function, and the possible continuous operation time of the upstream processing apparatus can be increased.

  And since there is much accommodation capacity | capacitance of the accumulation | storage sheet | seat in a conveying apparatus, it is not influenced by the trouble after the buffer part which is downstream from this, and the continuous operation in this upstream can be continued.

  Further, according to the present invention, the conveyance operation is configured by a combination of two operations of the raising / lowering operation of the raising and lowering slats and the horizontal operation of the progressive feeding slats, so that the stacked sheets sequentially conveyed on the sequential feeding slats always move up and down. Thus, the integrated sheet can be conveyed without causing end folding or wrinkles on the lowermost sheet.

It is a front view showing roughly an accumulation sheet conveyance device concerning the present invention. It is a top view of the said apparatus. It is a side view of the said apparatus. (A), (b) is explanatory drawing which shows the effect | action which transfers an accumulation | stacking sheet | seat from the raising / lowering stool for accumulation | stacking to a progressive feeding sword, (c), (d) is the accumulation | storage sheet | seat on a progressive feeding slat on the raising / lowering stool for standby It is effect | action explanatory drawing which shows the effect | action to transfer. It is effect | action explanatory drawing which shows the effect | action which transfers an accumulation | stacking sheet | seat from the raising / lowering stool for accumulation | stacking onto a progressively advanced slat. It is effect | action explanatory drawing which shows the state which moved the forward-feeding slat by one feeding interval. FIG. 7 is an operation explanatory diagram illustrating a state in which the stacked sheets are lifted from the progressively advanced slats by the standby slats from the state illustrated in FIG. 6. It is effect | action explanatory drawing which shows a mode that the accumulation | storage stool is mounted on a progressive feeding slat sequentially. It is operation | movement explanatory drawing which shows the state which moves the accumulation | storage sheet | seat of the most downstream of a progressive feed slat onto the sequential forward slat. FIG. 10 is an operation explanatory diagram illustrating a state in which the progressive feeding slats are moved upstream from the state illustrated in FIG. 9 and the stacked sheets on the transfer raising and lowering slats are transferred onto the lower sequential feeding slats.

  Embodiments of the present invention will be described with reference to the drawings.

[Outline of sheet transport structure]
In FIG. 1, reference numerals 1a, 1b, and 1c denote first, second, and third progressive feeding devices arranged in a step shape in the vertical direction. The first forward feed device 1a has an upstream end portion in the transport direction at the upstream end position 2a, and a downstream end portion in the transport direction at the downstream end position 2b. For example, two sheets, that is, the first and second intermediate positions 2c and 2d are provided at equal intervals, and the stacked sheet A supplied to the upstream end position 2a is moved from the upstream end position 2a to the first and second intermediate positions. After passing through 2c and 2d, the sheet is sequentially conveyed to the downstream end position 2b in a progressive manner.

  The transport direction of the second forward feed device 1b is opposite to that of the first forward feed device 1a, and its upstream end in the transport direction is located directly below the downstream end position 1b of the first forward feed device 1a. The upstream end position 3a and the downstream end in the transport direction are the downstream end position 3b, and a plurality of, for example, two, ie, first and second intermediate positions 3c, 3d are provided between the positions 3a, 3b. Are provided at equal intervals, and the stacked sheets A supplied to the upstream end position 3a are sequentially fed from the upstream end position 3a to the downstream end position 3b through the first and second intermediate positions 3c and 3d. It is designed to be conveyed.

  The transport direction of the third forward feed device 1c is opposite to that of the second forward feed device 1b, and its upstream end in the transport direction is located directly below the downstream end position 3b of the second forward feed device 1b. The upstream end position 4a and the downstream end in the transport direction are the downstream end position 4b, and a plurality of, for example, five, ie, first, second, third, and fourth, between the positions 4a and 4b. The fifth intermediate positions 4c, 4d, 4e, 4f, and 4g are provided at equal intervals, and the stacked sheets A supplied to the upstream end position 4a are arranged in the first to fifth positions from the upstream end position 4a. It is sequentially conveyed to the downstream end position 4b through the intermediate positions 4c to 4g. The intervals between the positions of the sequential feeding devices 1a, 1b, and 1c are the same.

  In the first, second, and third sequential feeding apparatuses 1a, 1b, and 1c, the stacked sheets A at the downstream end positions 2b and 3b of the upper sequential feeding apparatus are supplied to the lower upstream end positions 3a and 4a. Thus, the stacked sheets A supplied to the sheet supply position 2a of the first progressive feeding device 1a are fed to the feeding position 4b of the downstreammost sequential feeding device 1c via the sequential feeding devices 1a to 1c of each stage. Come.

  At this time, the accumulated amount of the accumulated sheets A remaining at the respective positions of the progressive devices 1a to 1c in each stage becomes the accumulation capacity in the entire conveying apparatus of the accumulated sheets, and the number of stages of the progressive devices 1a to 1c and the progressive devices 1a in each stage. The storage capacity can be increased by increasing the number of intermediate positions of ˜1c.

[Configuration and operation of progressive device]
Next, a specific configuration and operation of the progressive feed devices 1a to 1c at each stage will be described. The progressive feed devices 1a to 1c at the respective stages are provided with comb-shaped progressive feed slats 5a, 5b and 5c in the forward feed direction. The length in the feed direction of the progressive feed slats 5a to 5c of each stage is shortened by the length of one position in the transport direction of each stage, and reciprocates in the transport direction with a stroke corresponding to this one feed interval. It is supposed to be.

  In addition, at the intermediate position of the forward feed devices 1a to 1c of each stage, a stand-up lifting / lowering slat 6 that is comb-shaped so as to be able to pass up and down with respect to each of the forward feeding slats 5a to 5c moves up and down with a predetermined stroke. It is provided to do.

  Further, at the upstream end position 2a of the first progressive feeding device 1a, a stacking raising and lowering saw 9 that receives a sheet 8 supplied from the sheet feeding device 7 is arranged in a comb-like manner. And is moved up and down over this lower position. The sheet supply device 7 is provided with provisional receiving slats 7 a that receive more sheets 8 when a predetermined number of sheets 8 are supplied to the sheet supply device 7.

  In addition, the downstream end position 2b of the first progressive feed device 1a has both positions extending from the upper side of the progressive feed slat 5a of the first sequential feed device 1a to the lower side of the progressive slat 5b of the second sequential feed device 1b. A first delivery raising / lowering slat 10a in the form of a comb is provided so as to move up and down through the slats 5a and 5b.

  In addition, the downstream end position 3b of the second forward feed device 1b includes both positions extending from the upper side of the forward feed slat 5b of the second forward feed device 1b to the lower side of the forward feed saw 5c of the third forward feed device 1c. There is provided a second delivery raising / lowering slat 10b in the form of a comb that is moved up and down through the slats 5b and 5c.

  Furthermore, the downstream end position 4b of the third forward feed device 1c passes through the forward feed slat 5c from the lower side of the forward feed slat 5c of the third forward feed device 1c over the delivery position 11 above the third forward feed device 1c. A third raising / lowering slat 10c for delivery is provided in the shape of a comb that is adapted to move up and down.

  The delivery position 11 is separately provided with a delivery device for delivering the accumulated sheet A at this position to the next process.

  Each of the above-mentioned progressive feed slats 5a, 5b, 5c is guided by a horizontal guide rail 13, and each stand-by elevating slat 6, stacking elevating slat 9, and delivery elevating slats 10a, 10b, Each of 10c is guided by the elevating guide rail 14.

[Details of forward operation]
Next, the sequential feeding operation of the stacked sheets A in the sequential feeding devices 1a to 1c at each stage will be described with reference to FIGS.

  The sheet 8 supplied from the sheet supply apparatus 7 is accumulated on the elevating slats 9 for accumulation at the upstream end position 2a of the first progressive feeding apparatus 1a. Then, when the predetermined number of sheets is reached, the provisional receiving slat 7a protrudes, and the subsequent sheet 8 is provisionally received. FIG. 4A shows a state where a predetermined number of stacked sheets A are received by the stacking raising and lowering saws 9. In this state, as shown in FIG. 5, the first progressive feed slat 5 a is moved upstream in the feed direction and is located on the sheet supply position 2 a side.

  Next, the stacking raising and lowering slats 9 are lowered to the lower side of the first progressive feeding slats 5a. As a result, as shown in FIGS. 4B and 5, the stacking sheet A on the stacking raising and lowering slats 9 is transferred onto the progressive feeding slats 5 a. After that, as shown in FIG. 6, the progressive feeding slat 5a is moved in the feeding direction with a stroke over one feeding interval, and the stacking lifting slat 9 is raised and returned to the original position. At the same time, the temporary receiving slat 7a And the sheet 8 from the sheet supply device is supplied onto the raising and lowering slats 9 for accumulation. In this state, as shown in FIG. 6, the stacked sheet A is moved to the first intermediate position 2c.

  Next, as shown in FIGS. 4C, 4D, and 7, the stacking sheet on the progressive-feeding slat 5a is lifted by lifting the standby lifting slat 6 located below the second intermediate position 2c. Lift A to the standby position. Next, as shown in FIG. 8, the progressive feeding slats 5a are moved upstream in the feeding direction and returned to their original positions, and then the standby lifting slats 6 are lowered and the stacked sheets A placed thereon are moved. Is put on the progressively moving slat 5a. In this state, the accumulation sheet A is moved downstream on the progressive feeding slat 5a by one feeding interval in the feeding direction. Then, the next stacking sheet A is supplied from the stacking lifting / lowering saw 9 to the upstream end of the progressive feeding saw 5a.

  In this way, the stacked sheets A are sequentially fed by one feeding interval in the feeding direction on the progressive feeding slat 5a. At this time, in the step in which the progressive feeding slats 5a move, the stacked sheets A on the sequential feeding slats 5a are placed on the rising and lowering lifting scallops 6 for standby.

  Then, in a state where the stacked sheets A are sent to the most downstream position of the progressive feed slats 5a, as shown in FIG. 9, the progressive feed slats 5a are moved to the downstream side, and the downstream end side stacked sheets A are delivered to the delivery position 2b. Then, the first lifting elevating slat 10a is raised and received on the upper side of the progressive feeding slat 5a.

  Next, as shown in FIG. 10, each stacked sheet A on the progressive feeding slats 5 a is received by the lifted rising and falling scallops 6, and then the progressive feeding slats 5 a are moved upstream. In this state, the transfer raising / lowering slat 10a is lowered to the lower side of the progressive slat 5b of the second progressive feeder 1b, so that the second progressive slat 5b positioned on the upstream side in the feeding direction is over the second progressive slat 5b. The accumulated sheet A is delivered. Then, the stacked sheets A are sequentially fed one by one on the second progressive feeding slat 5b by the same operation as the first sequential feeding device 1a.

  Then, the stacked sheet A that has moved to the most downstream of the lowermost progressive feeding slat 5c passes through the progressive feeding slats 5c from the lower side of the stacking sheet A to raise the third delivery lifting slats 10c, thereby delivering to the lifting slats 10c. At the ascending delivery position 11, it is delivered to the next process side by a delivery device provided separately.

  The movement of the stacked sheet A on the progressive feeding slats 5a, 5b, and 5c is performed by a delivery operation only in the vertical direction from the slats to the slats. For this reason, there are no factors that cause misalignment in various forms of the paper itself in the feeding direction that occurs during delivery in the belt conveyance system, and conveyance with the normal stacking posture is possible. Further, it is possible to obtain various effects such as economical effects and simplification of control and adjustment by saving space.

  The sheet size of the stacked sheets A is determined by the size of the standby lifting slat 6 and can be moved and stocked from a size that can be placed on the standby lifting slat as shown in FIG. Moreover, the mounting position on the raising / lowering saw for standby can also be set arbitrarily.

  Further, in the present invention, instead of the sheet supply device 7 connected to the upstream side of the stacking sheet conveying device, a newspaper production device as shown in Japanese Patent Application Laid-Open No. 2003-341927 can be used, so that a newspaper-size sheet can be obtained. It can be used as an aggregation part. Further, it can also be used for an apparatus for manufacturing a booklet whose number of stacked sheets is changed randomly, for example, a booklet manufacturing apparatus disclosed in Japanese Patent Application Laid-Open No. 2002-086966.

  1a, 1b, 1c... Forward feeding device, 2a, 3a, 4a... Sheet feeding device, 2b, 3b, 4b... Feeding position, 2c, 2d, 3c, 3d, 4c, 4d, 4e, 4f, 4g. , 5b, 5c... Forwarding slats, 6 .. Elevating slats for standby, 7... Sheet feeding device, 7a... Temporary receiving slats, 8 .. Sheets, 9 ... Stacking slats, 10a, 10b, 10c. ... feeding position, 12 ... extrusion device, 13 ... horizontal guide rail, 14 ... lift guide rail.

Claims (5)

In an apparatus for conveying an accumulated sheet that conveys the accumulated sheet in one direction,
Elevating slats formed in a comb shape are provided at each of a plurality of equidistant positions in the conveying direction so as to be able to move up and down.
In addition, a progressively-advancing slat formed in a comb shape that is shorter than the entire length in the conveying direction by one position where the elevating slats are arranged and that allows the elevating slats to pass vertically. In the middle of the lifting / lowering stroke of the lifting / lowering slats, it is provided so as to be able to reciprocate over one position in the conveying direction,
The stacked sheets supplied from the sheet feeding device are sequentially fed one position at a time in the conveying direction on the progressive feeding blades by alternately raising and lowering each raising and lowering blade and the reciprocating movement of the progressive feeding blades in synchronization with the raising and lowering. An apparatus for conveying an integrated sheet, characterized in that it is configured as described above.   2. The stacked sheet conveying apparatus according to claim 1, wherein the raising and lowering slats positioned at the upstream end in the conveying direction are moved up and down from a position where the stacked sheets are passed above the progressive feeding slats to the lower side of the progressive feeding slats.   3. The stacked sheet conveying apparatus according to claim 2, wherein the raising and lowering slats at the downstream end in the conveying direction are raised and lowered to a delivery position set in one of the vertical direction of the progressive feeding slats.   The stacked sheet conveying device according to claim 3 is arranged in a plurality of stages, with the upstream end in the conveying direction of the next stacked sheet conveying device corresponding to the downstream end in the conveying direction of the preceding stacked sheet conveying device. Conveying device for integrated sheets.   The stacked sheet is transferred from the sheet feeding device to the lifting / lowering saw at the upstream end of the conveying device of the upstreammost stacked sheet conveying device, and the stacked sheet on the lifting / lowering saw at the downstream end of the conveying device of the most downstream stacked sheet is the next step 5. The apparatus for transporting an accumulated sheet according to claim 4, wherein the sheet is discharged into the stack.

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