JP2018193172A - Method for extracting paper sheet bundle - Google Patents

Abstract

To provide a method for extracting a paper sheet bundle that can extracts a set of paper sheet bundles from a stack at a high speed with extremely high precision.SOLUTION: A method for extracting a set of paper sheet bundles 32 from a stack 30 of the paper sheet bundles 32 is characterized in that: the stack 30 is constituted by stacking a plurality of sets of paper sheet bundles 32, each having a cut groove 36 formed on a binding margin-side edge part, one over another in the same direction with respective sides at orderly positions such that the paper sheet bundles 32 vertically adjoining each other have the cut grooves 36 not one over the other; and a paper sheet bundle 32' as a top layer of the stack 30 is held between an upper claw 9a brought into contact with an upper surface of the paper sheet bundle 32' as the top layer and a lower claw 9b having its tip entered into the cut groove 36 of a paper bundle 32" as a second layer of the stack 30, and then moved in a predetermined direction.SELECTED DRAWING: Figure 4

Description

  The present invention extracts a bundle of a set of sheets in order from the top from a stack of a plurality of sets of sheets stacked up and down through each process of printing, cutting, and collating, The present invention relates to a method of supplying the bookbinding apparatus and the like one by one.

  As a method of manufacturing a booklet such as a calendar, first, a paper sheet constituting each page of the booklet is manufactured by performing a printing and cutting process on the base paper, and then, the paper sheets are continuously arranged in the page order. Further, as shown in FIG. 7, a stack 30 is formed by stacking a number of paper sheets 31 in the vertical direction with the direction and the position of each side aligned, and the binding margin side of the stack 30 After applying glue (top glue) to the entire side surface 30a of the paper and drying and solidifying the glue, a stack of paper sheets 31 constituting one booklet (paper paper bundle 32) is placed on top of the stack 30. A method is known in which a set is sequentially extracted and supplied to a device (bookbinding device or the like) that executes the next process one by one.

  In this method, conventionally, only the uppermost sheet 31 in each sheet bundle 32 is targeted, and a material (medium) having a property of repelling glue on the upper surface (print display surface) along the binding margin side edge 34. ), The separation band 37 is printed. In this case, invasion of the base paste between the paper sheet 31 on which the separation band 37 is printed and the paper sheet 31 (the lowermost paper sheet 31 in the paper sheet bundle 32 thereon), And adhesion of these paper sheets 31 can be avoided suitably, and the extraction of the paper sheet bundle 32 from the stack 30 can be performed smoothly.

JP 2014-84203 A JP-A-7-329444

  When the separation band 37 is printed on the uppermost sheet 31 of each sheet bundle 32 and then the top sheet is applied to the side surface 30a of the stack 30 to bond the sheets 31, the separation band 37 is not printed. Compared to the case, the sheet bundle 32 can be extracted smoothly. However, the condition of each sheet 31 constituting the stack 30 is not necessarily uniform, and this extraction operation is automatically performed by mechanical means. When trying to execute the error, an error (for example, the sheet bundle 32 should originally be extracted one by one in order, but two sets of the sheet bundle 32 are extracted together. Or an error in which a sheet bundle 32 that is less than one set is extracted) occurs.

  The present invention is intended to solve such a problem of the prior art, and a bundle of sheets capable of extracting a set of bundles of sheets from a stack at a high speed and with extremely high accuracy. It is an object of the present invention to provide an extraction method.

  An extraction method for a sheet bundle according to the present invention includes a stage on which a stack of sheet bundles is placed, and a clamp that is movable in a horizontal direction and a vertical direction and includes an upper nail and a lower nail. Is used to extract a set of paper bundles from a stack of paper bundles, collating the sets of paper sheets so that they are continuous in page order, and aligning the direction and position of each side In order to prevent the positions of the notch grooves from overlapping each other in the upper and lower adjacent sheet bundles, a plurality of sets of paper sheets stacked vertically are formed on the binding margin side edge, respectively. Stacks up and down with the sides aligned and the top nails in contact with the top surface of the top stack of paper stacks and the leading edge into the cutout groove of the second stack of stacks The uppermost sheet bundle is sandwiched between the lower nails and moved in the specified direction. It is characterized in that.

  In this method, after the upper nail is brought into contact with the upper surface of the uppermost sheet bundle of the stack, the lower nail tip is moved into the notch groove of the second sheet bundle of the stack. Based on the height position information of the lower surface of the upper nail that is in contact with the upper surface of the upper sheet bundle, the position lower than the height position of the lower surface of the upper nail by the thickness dimension of a set of sheet bundles Further, it is preferable that the lower nail is positioned in the height direction by further descending to a height position between the sheet and the lower position by the thickness dimension of the pair of sheet bundles.

  A groove forming apparatus having a first cutter that forms a notch groove at any position on the binding margin side edge of the sheet bundle and a second cutter that forms a notch groove at a position different from the first cutter, Are placed between a collating machine that sequentially sends out a bundle of paper sheets one by one and a stacking device that stacks a plurality of paper bundles up and down to form a stack. Operate only one of the first cutter and the second cutter for the bundle of sheets supplied by each set, and switch the operation side each time the bundle of sheets is sent one by one. It is preferable that the first cutter and the second cutter are alternately operated with respect to the supplied series of paper sheet bundles so that the notch grooves are alternately formed at one of the positions.

  It should be noted that a groove forming apparatus having a cutter that can move in the horizontal direction and can set a plurality of notch groove forming positions at the binding margin side edge of the paper sheet bundle is used to collate the paper sheet and combine the paper sheet bundle. Arranged between a collating machine that sequentially sends out a set and a stacking device that stacks a plurality of sets of paper bundles up and down to form a stack, and the paper bundles are sent one by one from the collating machine The position can be changed every time to form a notch groove.

  According to the method for extracting a sheet bundle according to the present invention, a set of sheet bundles can be extracted at a high speed and with extremely high accuracy from a stack in which a large number of sheet bundles are stacked. Moreover, unlike the conventional method, it is not necessary to apply the top paste to the side surface on the binding margin side, and therefore, the step of drying and solidifying the applied top paste and the step of printing the separation band (medium) may be omitted. The cost and time required can be greatly reduced.

FIG. 1 is a diagram showing a configuration of a main part of an extraction apparatus 1 used in the “sheet bundle extraction method” according to the present invention. FIG. 2 is an enlarged view of the notch groove 36 formed along the binding margin side edge 34 of the sheet bundle 32 shown in FIG. FIG. 3 is an explanatory diagram of a method of stacking the sheet bundles 32 constituting the stack 30 shown in FIG. FIG. 4 is an explanatory diagram of an extraction operation (an operation mode of each component of the extraction device 1) executed by the extraction device 1 shown in FIG. FIG. 5 is an explanatory diagram of an extraction operation (an operation mode of each component of the extraction device 1) executed by the extraction device 1 shown in FIG. FIG. 6 is a configuration diagram of a groove forming device 41 and the like for forming the notch groove 36 in the sheet bundle 32, (1) is a plan view thereof, and (2) is a side view thereof. FIG. 7 is an explanatory view of a conventional paper sheet bundle extraction method, and is a perspective view of a stack 30 in which a large number of paper sheet bundles 32 are stacked.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment for carrying out a “sheet bundle extracting method” according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram showing a configuration of a main part of an extraction apparatus 1 used for carrying out a method according to the present invention. As shown in the figure, the extraction device 1 is a stage 2 on which a stack 30 of sheet bundles 32 (a large number of sheet bundles 32 stacked vertically with their orientations and sides aligned). And a clamp 9 that can move freely in the horizontal and vertical directions. The clamp 9 includes an upper claw 9a and a lower claw 9b.

  Each sheet bundle 32 constituting the stack 30 on the stage 2 collates a pair of sheets 31 constituting one booklet so as to be continuous in the page order, and aligns the direction and the position of each side. It is a thing stacked up.

  Note that, as shown in FIG. 2, one binding groove 33 is formed in the binding margin portion 33 of each sheet bundle 32 along the binding margin side edge portion 34. More specifically, a semicircular cutout 35 having a radius of 5 mm is formed at a position along the binding margin side edge 34 in each paper sheet 31 constituting one paper sheet bundle 32. Since these notches 35 are formed at the same position in all the paper sheets 31 constituting one paper sheet bundle 32, all the paper sheets 31 constituting one paper sheet bundle 32 are arranged in the direction and each side. By aligning these positions and stacking them vertically, an arc-shaped cutout groove 36 as shown in FIG. 2 is formed.

  However, as shown in FIG. 3, there are two types of positions where the notch groove 36 is formed (a position A on the right side of the center in the width direction and a position B on the left side). The sheet bundles 32 are stacked so that the formation positions (A, B) of the notch grooves 36 do not overlap (so as not to be continuous). That is, the sheet bundle 32 (A) in which the notch groove 36 is formed at the right position A and the sheet bundle 32 (B) formed at the left position B are alternately stacked.

  4 and 5 show a stack 30 formed by alternately stacking two types of paper sheet bundles 32 (A) and 32 (B) (see FIG. 3) in which the notch grooves 36 are formed. FIG. 6 is an explanatory diagram of the sheet bundle 32 extraction operation performed by the extraction device 1 when placed on the stage 2 as described above.

  First, as shown in FIG. 4, the clamp 9 moves to a position in the stack 30 near the notch groove 36 of the second sheet bundle 32 ″ (position indicated by a broken line in FIG. 4). The upper claw 9a moves to a position above the uppermost sheet bundle 32 '(position indicated by a one-dot chain line), and then contacts the upper surface of the uppermost sheet bundle 32' (position indicated by a solid line). The upper claws 9a are lowered.

  The lower nail 9b is positioned at the same height as the second sheet bundle 32 ″ based on the height position information of the lower surface of the upper nail 9a that is in contact with the upper surface of the uppermost sheet bundle 32 ′. In FIG. 4, a position H1 that is lower than the height position H0 of the lower surface of the upper claw 9a by the thickness dimension of a set of sheet bundles (the uppermost sheet bundle 32 '). And further descends to a height position between the lower position H2 by the thickness dimension of the pair of sheet bundles (second sheet bundle 32 ″) (lower nail in the height direction) 9b positioning).

  Next, the lower claw 9b moves in the horizontal direction toward the cutout groove 36 of the second sheet bundle 32 ″, and the tip of the lower claw 9b enters the cutout groove 36 as shown by a solid line in FIG. 5, the uppermost sheet bundle 32 '(the binding margin 33) is clamped by the clamps 9 (upper claw 9a, lower claw 9b), as shown in FIG. .

  Then, the clamp 9 rises with the uppermost sheet bundle 32 ′ sandwiched, and then moves in the horizontal direction (left side in FIG. 5), and the uppermost sheet bundle 32 ′ is extracted from the stack 30. Then, it is transported to an apparatus (bookbinding apparatus or the like) that executes the next process. When the extraction of the uppermost sheet bundle 32 ′ is completed in this way, the second sheet bundle 32 ″ becomes the uppermost layer, and then the extraction operation as described above is repeated.

  In the present embodiment, the arc-shaped cutout groove 36 is formed at a position along the binding margin side edge 34 of each sheet bundle 32, but it is rectangular, V-shaped, or other shape. Notch grooves (not shown) may be formed. As for the formation position of the notch groove 36, as shown in FIG. 3, two types of positions A and B on the right side of the center in the width direction are set, but three types or more are set. It is good.

  In addition, the formation of the notch groove 36 in each paper sheet bundle 32 is performed, for example, by arranging a groove forming device 41 as shown in FIG. 6 between the collating machine 42 and the stacking device 43 so that one paper sheet bundle 32 is provided. This can be done by feeding one by one. More specifically, the collating machine 42 first feeds the sheets 31 one by one from each tray of the multi-stage tray 42a and collects them into one set (a set of sheet bundles 32). The bundled sheet bundle 32 is sent to the groove forming device 41 one by one by the conveyor 42b.

  In the groove forming device 41, a first cutter 41a capable of forming a notch groove 36 at a position A shown in FIG. 3 (a position closer to the right than the center in the width direction of the sheet bundle 32), and B shown in FIG. (A position closer to the left than the center in the width direction of the sheet bundle 32) (a second cutter 41b capable of forming the notch groove 36 at a position different from the position where the first cutter 41a forms the notch groove 36). , And only one of the first cutter 41a and the second cutter 41b is operated on the sheet bundle 32 supplied one by one from the collating machine 42, and one sheet bundle 32 is The operation side is switched every time the set is sent, and the first cutter 41a and the second cutter 41b are alternately operated with respect to a series of sequentially supplied sheet bundles 32, so that the notch groove 36 is formed in FIG. A or B position They are formed alternately.

  That is, when the first cutter 41a is operated with respect to the sheet bundle 32 sent first and the notch groove 36 is formed at the position A shown in FIG. 3, the sheet bundle sent next is sent. For 32, the second cutter 41b is operated to form a notch groove 36 at the position B shown in FIG. Thereafter, the first cutter 41a operates for the odd-numbered sheet bundle 32 and the second cutter 41b operates for the even-numbered sheet bundle 32.

  Then, the sheet bundle 32 in which the notch groove 36 is formed in the groove forming device 41 is sent to the stacking device 43 and stacked in order on the stage 2. Then, as shown in FIG. 3, the sheet bundle 32 (A) in which the notch groove 36 is formed at the right position A and the sheet bundle 32 (B) formed at the left position B are alternately arranged. Stacks are formed to form a stack 30 as shown in FIG.

  FIG. 6 shows a groove forming device 41 having two cutters (first cutter 41a and second cutter 41b). However, the groove forming device 41 can be moved in the horizontal direction, and the binding margin side edge of the sheet bundle. Groove formation that has a cutter that can set a plurality of notch groove forming positions in the section, and can change the forming position each time a sheet bundle is sent from the collating machine one by one. An apparatus (not shown) can also be used.

1: Extraction device,
2: Stage,
9: Clamp,
9a: upper nails,
9b: lower nails,
30: Stack,
30a: side surface of the binding margin side,
31: Paper sheet,
32: Paper bundle,
32 ': Topmost sheet bundle,
32 ": second layer paper bundle,
33: Binding margin,
34: Binding margin side edge,
35: Notch,
36: Notch groove,
37: separation zone,
41: groove forming device,
41a: first cutter,
41b: second cutter,
42: Collating machine,
42a: multi-stage tray,
42b: conveyor,
43: Accumulator

Claims (4)

One set from a stack of paper sheets using an extraction device having a stage on which the stack of paper bundles is placed and a clamp that is movable in the horizontal and vertical directions and comprises upper and lower claws A method for extracting a sheet bundle of minutes,
A pair of paper sheets are collated so that they are continuous in page order, and a plurality of paper sheet bundles stacked in the vertical direction with the orientation and position of each side aligned are formed with notch grooves on the binding margin side edges, respectively. On top of that, stacking up and down is configured by aligning the direction and position of each side so that the formation position of the notch groove does not overlap in the sheet bundle adjacent to the top and bottom,
The uppermost sheet bundle is sandwiched between the upper nail that is in contact with the top surface of the uppermost sheet bundle in the stack and the lower nail that has the tip advanced into the notch groove of the second sheet bundle in the stack. And a sheet bundle extracting method, wherein the sheet bundle is moved in a predetermined direction.   After bringing the upper nail into contact with the upper surface of the uppermost sheet bundle of the stack, when the tip of the lower nail is advanced into the notch groove of the second sheet bundle of the stack, the upper surface of the uppermost sheet bundle Based on the height position information of the lower surface of the upper nail that is in contact with the upper nail, a position below the height position of the lower surface of the upper nail by the thickness dimension of a set of paper bundles, and then another set of 2. The sheet bundle according to claim 1, wherein the lower nail is positioned in the height direction by being lowered to a height position between the lower position by the thickness dimension of the sheet bundle. Extraction method. A groove forming device having a first cutter that forms a notch groove at any position on the binding margin side edge of the sheet bundle and a second cutter that forms a notch groove at a position different from the first cutter is provided. Combined and placed between a collating machine that sequentially sends out a bundle of paper sheets one by one and a stacking device that stacks a plurality of paper bundles up and down to form a stack,
For the sheet bundle supplied one by one from the collator, only one of the first cutter and the second cutter is operated, and the side that is activated each time the sheet bundle is sent one by one The first cutter and the second cutter are alternately operated with respect to a series of sequentially supplied sheet bundles, and the notch grooves are alternately formed at any one of the positions. The method for extracting a sheet bundle according to claim 1 or 2. A groove forming device having a cutter that can move in the horizontal direction and can set a plurality of notch groove forming positions at the binding margin side edge of the sheet bundle, collates the sheets, and sets the sheet bundles one by one Arranged between a collating machine that sends out in order and a stacking device that stacks multiple sets of paper sheets up and down to form a stack,
The method for extracting a sheet bundle according to claim 1 or 2, wherein the position is changed each time a pair of sheet bundles is sent from the collating machine to form a notch groove. .

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