JP2019038262A - Corrugated cardboard sheet bonding apparatus, manufacturing method of continuous corrugated cardboard sheet, and corrugated cardboard blank manufacturing apparatus - Google Patents

Abstract

To eliminate waste of paper picked up and shorten time required for supplement of a corrugated cardboard sheet to be a material in on-demand manufacturing of a corrugated cardboard box.SOLUTION: In the method, by using a corrugated cardboard sheet bonding apparatus 200 which comprises transportation means 220 for transporting a corrugated cardboard sheet S in a direction parallel to one side of the corrugated cardboard sheet S, and bonding means 230 for bonding opposed end edges of two pieces of the corrugated cardboard sheets S to be transported sequentially by the transportation means 220, a continuous corrugated cardboard sheet C is manufactured, then is supplied to a blank-cut out apparatus 400 which comprises a vertically cutting apparatus 420 and a horizontally cutting apparatus 430.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an apparatus for manufacturing a continuous corrugated cardboard sheet as a material for manufacturing a large number of cardboard boxes by bonding cardboard sheets.

  A cardboard box is an assembly of blanks (corrugated cardboard blanks) cut out from corrugated cardboard sheets that are packaging materials. Various types are available, ranging from standard products with standard sizes in vertical, horizontal, and height to non-standard products. There is. Corrugated cardboard blanks are usually manufactured by cutting out one by one from a plate-shaped cardboard sheet and putting slits or ruled lines at necessary locations. When manufacturing a standard cardboard blank, it can be cut out at a certain length and slits and ruled lines into a certain point can be continuously and at high speed, so a large amount of cardboard blanks can be manufactured at low cost. .

  However, in recent years, there has been an increasing demand for so-called on-demand cardboard box manufacturing in which it is desired to individually manufacture cardboard boxes corresponding to various packages. In such a case, if cardboard boxes having various unfolded shapes are manufactured from a plate-shaped corrugated cardboard sheet having a certain size, waste of cutting is increased.

  Therefore, an apparatus has been proposed in which a long cardboard sheet is manufactured and stored in advance, and a necessary length is drawn out when necessary, and a blank sheet corresponding to a cardboard box of a desired size is cut out (for example, , See Patent Document 1). This corrugated board blank manufacturing apparatus includes a transporting device that pulls out and transports stock long cardboard sheets little by little, a crossing device that cuts in a direction perpendicular to the transporting direction, and a cut along the transporting direction. A vertical cutting device is provided, and the vertical cutting device is movable in the width direction (direction orthogonal to the conveying direction). The long corrugated cardboard sheet drawn from the stock is first cut to a required length by a crossing device, and further, the required shape and A sized cardboard blank is produced.

  In such on-demand cardboard box manufacturing, if the long cardboard sheet as a raw material is single-sided cardboard, it can be rolled up and stocked. However, in the case of double-sided cardboard that is usually used as a material for a cardboard box, it is difficult to wind it in a roll shape. Therefore, it has been proposed that long-sided double-sided cardboards manufactured in advance are stocked in a bellows-like state and used for on-demand cardboard box manufacturing (for example, Non-Patent Document 1). See). By folding in a bellows shape in this way, it is possible to store as a long cardboard sheet in both cases of double-sided cardboard and single-sided cardboard.

International Publication No.WO2014 / 119439

BOX ON DEMAND MACHINE, Panotec S.R.L, [Search June 1, 2017], Internet <URL: http: //www.boxondemand.it/en/box-on-demand-machines/>

  However, in the on-demand cardboard box manufacturing as described above, even if a long cardboard sheet rolled up in a roll shape or folded in a bellows shape is used as a material, a single long cardboard sheet is used. The cardboard blanks are cut out sequentially from the front end side of the cardboard sheet, and when the remaining cardboard sheet is less than the length required for the desired cardboard blank, the remaining cardboard sheet is discarded, which is slight. However, paper is wasted. In addition, when one long cardboard sheet is used up, it is necessary to replenish a new roll-shaped or bellows-like long cardboard sheet to the transport device. In other words, it is necessary to temporarily stop the entire corrugated board blank manufacturing apparatus including the above-described crossing apparatus and vertical cutting apparatus, which causes a reduction in production efficiency.

  The present invention has been made in view of the above points, and an object of the present invention is to eliminate the waste of paper removal and to replenish a corrugated sheet as a material in the production of a corrugated cardboard box on demand. It is to shorten time.

A cardboard sheet joining apparatus according to the present invention, which has been made to solve the above problems,
a) conveying means for conveying the cardboard sheet in a direction parallel to one side of the cardboard sheet;
b) joining means for joining opposite edges of the two corrugated cardboard sheets conveyed back and forth by the conveying means;
It is characterized by having.

  In addition, the said joining means shall be what shall join the said 2 corrugated cardboard sheet | seats with an adhesive agent, or shall join by fasteners, such as a stapler and a hook.

According to the corrugated cardboard joining means according to the present invention, a plurality of corrugated cardboard sheets can be automatically joined to form a continuous corrugated cardboard sheet.
Therefore, by disposing the corrugated sheet joining apparatus according to the present invention in front of the vertical cutting apparatus and the horizontal cutting apparatus in the above-described corrugated cardboard blank manufacturing apparatus, It becomes possible to supply continuously. This eliminates waste of paper removal and eliminates the need to temporarily stop the apparatus for replenishing cardboard sheets, thereby improving the production efficiency of cardboard blanks.

  Each of the corrugated cardboard sheets joined by the corrugated cardboard joining apparatus according to the present invention may be a sheet-like corrugated cardboard sheet, that is, a plate-shaped corrugated cardboard sheet that is not folded or bent, and is a length folded in a bellows shape. It may be a long cardboard sheet or a long cardboard sheet wound up in a roll shape.

That is, the corrugated board joining apparatus according to the present invention is
The sheet-fed corrugated cardboard sheets may be fed one by one to the conveying unit, and may have a sheet feeding unit,
It may have a paper feeding means that pulls out one end of the corrugated cardboard sheet folded into a bellows shape and supplies it to the conveying means,
Alternatively, it may have a paper feeding means that pulls out one end of the corrugated cardboard sheet wound in a roll shape and supplies it to the conveying means.

Moreover, the corrugated cardboard sheet joining apparatus according to the present invention further includes:
A crease applying means for applying a crease perpendicular to a conveying direction by the conveying means to the corrugated cardboard sheet joined by the joining means at a constant interval;
It is desirable to have.

  This makes it possible to fold a continuous corrugated cardboard sheet obtained by joining a plurality of corrugated cardboard sheets into a bellows shape.

  Further, when a continuous corrugated sheet is produced using the corrugated sheet joining apparatus according to the present invention, in the continuous corrugated sheet obtained by joining a plurality of corrugated cardboard sheets, there is a large difference in thickness between the joining location and other regions. It is desirable to prevent this from occurring.

Therefore, a method for producing a continuous cardboard sheet according to the present invention is a method for producing a continuous cardboard sheet by joining a plurality of cardboard sheets with the cardboard sheet joining apparatus according to the present invention,
Forming a margin part by crushing the front end and the rear end of each cardboard sheet conveyed by the conveying means in the thickness direction in advance;
In the joining means, the glue margin provided at the rear end of the front cardboard sheet of the two cardboard sheets and the glue margin provided at the front end of the rear cardboard sheet are overlapped. It is characterized by joining.

Alternatively, the method for producing a continuous cardboard sheet according to the present invention is a method for producing a continuous cardboard sheet by joining a plurality of cardboard sheets with the cardboard sheet joining apparatus according to the present invention,
One liner or one liner and corrugated sheet out of two liners and one corrugated sheet constituting the corrugated cardboard sheet are missing at the front and rear ends of each corrugated sheet conveyed by the conveying means. Preliminary glue margin is provided,
In the joining means, the glue margin provided at the rear end of the front cardboard sheet of the two cardboard sheets and the glue margin provided at the front end of the rear cardboard sheet are overlapped. It is characterized by joining.

The continuous cardboard sheet according to the present invention is
It is composed of a plurality of corrugated cardboard sheets arranged in a line and joined to each other with their edges overlapped, and each of the corrugated cardboard sheets is crushed in the thickness direction at the edges. .

In addition, the continuous cardboard sheet according to the present invention is
It is composed of a plurality of corrugated cardboard sheets arranged in a row and joined to each other with their edges overlapped, and each of the corrugated cardboard sheets comprises two liners constituting each corrugated cardboard sheet at the edge And one corrugated sheet, or a region where one liner or one liner and the corrugated sheet are missing.

Moreover, the corrugated board blank manufacturing apparatus according to the present invention is
a) Corrugated cardboard sheet joining apparatus according to the present invention,
b) a continuous corrugated sheet conveying means for conveying the continuous corrugated sheet generated by the corrugated sheet joining apparatus;
c) a blank cutting means for cutting a cardboard blank from the continuous cardboard sheet by cutting the continuous cardboard sheet along a direction parallel to and perpendicular to the transport direction by the transport means;
It is characterized by having.

  As described above, according to the corrugated cardboard sheet joining apparatus according to the present invention, it is possible to eliminate the waste of paper removal and reduce the time required for replenishing the corrugated cardboard sheet as a material in the production of a corrugated cardboard box on demand. Can do.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram of the corrugated board joining apparatus by the 1st Embodiment of this invention, (a) is side sectional drawing, (b) is a top view. The top view which shows another example of arrangement | positioning of the paper feed preparation part in the said corrugated board joining apparatus. The top view which shows another example of arrangement | positioning of the paper feed preparation part in the said corrugated-cardboard joining apparatus. Sectional drawing of the corrugated board sheet | seat joined by the corrugated board joining apparatus which concerns on the embodiment. The figure explaining the joining method of the said corrugated cardboard sheet. The side view which shows the said corrugated cardboard sheet | seat joined. It is a schematic block diagram of the corrugated board blank manufacturing apparatus by the 2nd Embodiment of this invention, (a) is side sectional drawing, (b) is a top view. The side view which shows the structure of the crease provision part in the same embodiment. The figure which shows a mode that a corrugated cardboard sheet is pressed by a ruled line provision part. The figure which shows the cardboard sheet | seat with which the ruled line was provided by the ruled line provision part. Sectional drawing which shows another 1st example of the corrugated cardboard sheet | seat joined with the corrugated board joining apparatus which concerns on this invention. The figure explaining the joining method of the said corrugated cardboard sheet. The side view which shows the said corrugated cardboard sheet | seat joined. The perspective view which shows another 2nd example of the corrugated cardboard sheet | seat joined by the corrugated board joining apparatus which concerns on this invention. The side view explaining the joining method of the said corrugated cardboard sheet. The side view which shows the said corrugated cardboard sheet | seat joined. AA arrow sectional drawing of FIG. It is a schematic block diagram which shows the cardboard sheet manufacturing apparatus for manufacturing a cardboard sheet like FIG. 14, (a) is a side view, (b) is a top view. The schematic block diagram of the corrugated board joining apparatus in the case of using a bellows-like long corrugated board as a raw material. The schematic block diagram of the corrugated-cardboard sheet | seat joining apparatus in the case of using a roll-shaped long corrugated-cardboard as a raw material. Sectional drawing which shows another 3rd example of the corrugated cardboard sheet | seat joined with the corrugated cardboard sheet | seat joining apparatus which concerns on this invention. The figure explaining the joining method of the said corrugated cardboard sheet. The side view which shows the said corrugated cardboard sheet | seat joined. The disassembled perspective view which shows another 4th example of the corrugated cardboard sheet | seat joined with the corrugated cardboard sheet | seat joining apparatus which concerns on this invention. The perspective view of the said cardboard sheet.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

<Embodiment 1>
FIG. 1 is a schematic configuration diagram of a corrugated board joining apparatus 100 according to a first embodiment of the present invention. A corrugated cardboard sheet joining apparatus 100 according to the present embodiment generates a continuous corrugated cardboard sheet C by joining single-wafer type corrugated cardboard sheets S. A sheet feeding unit 110, a transport unit 120, a joining unit 130, and A control unit 140 to be controlled and a control panel 150 for a user to input various settings to the control unit 140 are provided. In the following, front, rear, left and right are defined with the conveyance direction of the corrugated cardboard sheet S, that is, the direction indicated by the white arrow in FIG. In the sheet-type cardboard sheet S and the continuous cardboard sheet C, a direction parallel to the transport direction is referred to as a length direction, and a direction orthogonal to the transport direction is referred to as a width direction.

  The sheet feeding unit 110 includes a sheet storage unit 111 that can store a plurality of sheet-shaped cardboard sheets S having a predetermined shape, and an inner bottom surface 112a of the sheet storage unit 111 includes a motor (not shown). The bottom drive mechanism 112 can be moved up and down. The sheet feeding unit 110 further includes a kicker 113 for pushing out the uppermost one of the plurality of cardboard sheets S stacked in the sheet storage unit 111 toward the right in the drawing. Each time the uppermost cardboard sheet S is pushed out by the kicker 113, the inner bottom surface 112a of the sheet storage unit 111 is raised by the thickness of the cardboard sheet S by the bottom surface driving mechanism 112. Further, as shown in FIG. 1B, on both the left and right sides of the sheet storage unit 111, there are sheet feeding preparation units 114 and 115 in which stocks of cardboard sheets S are respectively arranged. Corrugated sheet in the sheet storage unit 111 When S is lost, the corrugated sheet S is supplied to the sheet storage unit 111 from either one of the sheet feeding preparation units 114 and 115.

  In FIG. 1B, the configuration in which the sheet feeding preparation units 114 and 115 are arranged on both the left and right sides of the sheet storage unit 111 is shown, but not limited thereto, the sheet storage unit 111 is supplied to only one of the left and right sides. A configuration in which the paper preparation unit 114 is arranged (FIG. 2) or a configuration in which the paper feed preparation unit 114 is arranged behind the sheet storage unit 111 (FIG. 3) can be used (the same applies to the second embodiment described later).

  Each corrugated cardboard sheet S accommodated in the sheet feeding unit 110 has a predetermined length of an area at a front end and a rear end (that is, an end located on the front side and an end located on the rear side during conveyance). By crushing over the whole area of the direction, it is compressed to about half of the original thickness. At this time, as shown in FIG. 4, the front end (the right end in the figure) of the cardboard sheet S compresses the lower surface side upward, and the rear end (the left end in the figure) faces the upper surface downward. Compress. Hereinafter, the crushed areas of the front and rear ends of each corrugated cardboard sheet S will be referred to as paste margin portions Sa and Sb, and the other areas will be referred to as body portions Sc. By performing the compression as described above, the upper surface of the front margin portion Sa of each corrugated cardboard sheet S is flush with the main body portion Sc, and the lower end of the past margin portion Sb is flush with the main body portion Sc. It becomes.

  The transport unit 120 includes a plurality of transport rollers 121 that form a transport path for the corrugated cardboard sheet S and a motor (not shown) that drives them, and the corrugated cardboard sheets pushed out one by one from the sheet storage unit 111 by the kicker 113. S is sequentially transported on these transport rollers 121.

  The joining unit 130 includes a paper edge detection unit 131, an adhesive application unit 132, and a crimping unit 133. The paper edge detection unit 131, the adhesive application unit 132, and the pressure bonding unit 133 are arranged so as to straddle the support bases 131b, 132b, and 133b and the left and right support bases 131b, 132b, and 133b, which are disposed on the left and right sides of the conveyance path, respectively. The frames 131c, 132c, and 133c are provided. The paper end detection unit 131 further includes a sensor 131a such as an infrared sensor attached to the frame 131c. The paper end detection unit 131 detects the front end and the rear end of each corrugated cardboard sheet S moving on the conveyance path and outputs a detection signal to the control unit 140. Send to. The adhesive application unit 132 includes a spray nozzle 132a attached to the frame 132c. Under the control of the control unit 140, the adhesive coating unit 132 is spread over the entire width direction of the cardboard sheet S at the timing when the rear end of each cardboard sheet S passes. The adhesive is applied to the upper surface of the pasting margin Sb at the rear end of each corrugated cardboard sheet S by spraying the adhesive.

  In addition, as shown in FIG. 1A, the downstream conveyance path is more corrugated than the predetermined point downstream of the adhesive application unit 132 and the downstream conveyance path. Is a slightly lower surface (that is, the upper end position of the transport roller 121). Therefore, when the entire sheet of corrugated cardboard sheet S that has passed through the adhesive application unit 132 gets on the downstream conveyance path, only the downstream conveyance path is temporarily stopped, and then the adhesive application section The margin margin Sa at the front end of the corrugated board sheet S that has passed 132 can be overlaid on the margin margin Sb at the rear end of the corrugated board sheet S that is stopped on the downstream conveyance path (FIG. 5). In this state, by operating the downstream conveyance path again, the two corrugated cardboard sheets S in a state where the front end and the rear end overlap with each other are introduced into the crimping portion 133.

  The pressure bonding part 133 is provided with a pressure roller 133a attached to the frame 133c and disposed above the conveying roller 121. The distance between the conveying roller 121 and the pressure roller 133a in the pressure bonding part 133 is substantially equal to the thickness of the corrugated cardboard sheet S. It has become. The cardboard sheet S introduced into the crimping part 133 passes between the conveying roller 121 and the crimping roller 133a, and in the process, the cardboard sheet S located on the rear end and the upstream side of the cardboard sheet S located on the downstream side. The overlapping portion with the front end is pressed in the thickness direction and securely bonded (FIG. 6).

<Embodiment 2>
Subsequently, a corrugated board blank manufacturing apparatus according to a second embodiment of the present invention will be described with reference to FIG. The corrugated board blank manufacturing apparatus according to this embodiment includes a corrugated board joining apparatus 200 that joins a plurality of single-sheet corrugated board sheets S to create a continuous corrugated board sheet C, and cuts out the corrugated board blank B from the continuous corrugated board sheet C. Are provided between the cardboard sheet joining device 200 and the blank cutout device 400, the control unit 540 for controlling these, the control panel 550 for the user to input various settings to the control unit 540, Buffer zone 300.

  The corrugated board joining apparatus 200 in the present embodiment has the same configuration as that of the corrugated board joining apparatus 100 according to the first embodiment except that a crease imparting section 260 is provided on the downstream side of the crimping section 233. doing. Therefore, among the components of the corrugated board bonding apparatus 200 shown in FIG. 7, the same or corresponding components as those described in the first embodiment are denoted by the same reference numerals in the last two digits, and will be described as appropriate. Is omitted.

  Also in the corrugated cardboard joining apparatus 200 in the present embodiment, the single-wafer type corrugated cardboard sheets S are sent out one by one from the paper feeding unit 210 to the conveyance path, as in the first embodiment, and these corrugated cardboard sheets S are By passing through the paper edge detection unit 231, the adhesive application unit 232, and the pressure bonding unit 233, a continuous cardboard sheet C is generated. When the continuous corrugated sheet C passes through the crease imparting section 260, ruled lines (folded lines) extending over the entire width direction of the continuous corrugated sheet C are formed at regular intervals.

  As shown in FIGS. 7B and 8, the crease imparting section 260 is spanned between the support bases 260 b disposed on the left and right sides of the transport path and the left and right support bases 260 b, and continues on the transport path. Two ruler rollers 261a and 261b arranged vertically so as to sandwich the corrugated cardboard sheet C, and a first drive unit 262a and a second drive unit 262b composed of a motor or the like that rotationally drives them are provided. The ruled rollers 261a and 261b are each extended in the width direction of the continuous cardboard sheet C and have a width wider than the width of the continuous cardboard sheet C. On the surfaces of the ruler rollers 261a and 261b, press members 263a and 263b extending in the axial direction of the ruler rollers 261a and 261b are provided, respectively. These pressing members 263a and 263b are rod-shaped members having the same length as the axial length of the ruled rollers 261a and 261b and having a substantially rectangular cross section.

  As shown in FIG. 9, each pressing member 263a, 263b is formed with grooves 264a, 264b extending in the axial direction, so that each pressing member 263a, 263b has two protrusions on its tip surface. It has strips 265a, 266a, 265b, 266b. These protrusions 265a, 266a (and 265b, 266b) are provided with an interval of 1 to 3 times the thickness of the continuous cardboard sheet C. The two ruled rollers 261a and 261b are positioned such that when the two pressing members 263a and 263b approach each other, the upstream protrusion 265a of the upper pressing member 263a is located on the lower pressing member 263b. The center of rotation is shifted in the conveying direction of the continuous corrugated cardboard sheet C so as to fit between the two protrusions 265b and 266b.

  Under the control of the control unit 540, when the first driving unit 262a and the second driving unit 262b of the crease providing unit 260 rotate and drive the ruled rollers 261a and 261b, the continuous corrugated sheet supplied to the crease applying unit 260. C is pressed from both sides by being sandwiched between the upper and lower pressing members 263a, 263b as shown in FIG. 9 for every certain length (for example, 1100 mm). As a result, as shown in FIG. 10, a crease 610 composed of two adjacent parallel ruled lines 611 and 612 is applied to the continuous cardboard sheet C at regular intervals.

  Here, the creases 610 are provided over the entire width of the continuous corrugated cardboard sheet C, but may be provided only in part of the width direction. Further, instead of configuring the crease 610 with the two ruled lines 611 and 612 as described above, the crease may be configured with one ruled line.

  The continuous corrugated cardboard sheet C to which the creases 610 have been provided as described above is sent to the buffer strip 300 and is folded in a bellows shape along the creases 610 by a predetermined folding mechanism (not shown). The continuous corrugated cardboard sheets C folded in a bellows shape in the buffer band 300 are sequentially drawn out from the downstream side, and are sent to the subsequent blank cutting device 400 in a flattened state. As described above, by providing the buffer band 300 for storing the continuous corrugated sheet C generated by the corrugated sheet joining apparatus 200, it is possible to absorb the speed difference between the preceding and following processes and to correlate the corrugated sheet joining apparatus 200. Even if either one of the blank cutout device 400 is temporarily stopped for some reason, it is possible to continue operating the one device.

  The blank cutting device 400 includes a conveyance unit 410 including a conveyance roller 411 for conveying the continuous cardboard sheet C, a vertical cutting device 420 that cuts the continuous cardboard sheet C in the vertical direction (that is, the length direction), and a continuous cutting device 420. And a cross-cutting device 430 that cuts the cardboard sheet C in the horizontal direction (that is, the width direction).

  Each of the vertical cutting device 420 and the horizontal cutting device 430 includes support bases 421 and 431 disposed on the left and right sides of the conveyance path, and frames 422 and 432 that span the left and right support bases 421 and 431, respectively. ing. The vertical cutting device 420 is further attached to the frame 422 and has a plurality of vertical cutting units 423 provided with cutting blades for cutting in the length direction of the continuous corrugated cardboard sheet C, and each vertical cutting unit along the frame 422. A left-right moving mechanism 424 that moves 423 and a vertical movement mechanism 425 that moves the cutting blade of each vertical cutting unit 423 up and down are provided. The crossing device 430 is attached to the frame 432 and includes a plurality of crossing units 433 provided with cutting blades for cutting in the width direction of the continuous corrugated cardboard sheet C, and each crossing unit 433 along the frame 432. And a vertical movement mechanism 435 that moves the cutting blade of each horizontal cutting unit 433 up and down.

  As the cutting blades of the vertical cutting unit 423 and the horizontal cutting unit 433, for example, a disk-shaped rotary blade, a cutter, a slitter, a slotter, or the like can be used. Although not shown, the vertical cutting device 420 and the horizontal cutting device 430 are provided with a length measuring sensor for correctly measuring the cutting position and a ruled line for putting a ruled line at a portion to be bent when assembling a cardboard box from a cardboard blank. Laura is included. Further, a take-up roll that winds up a portion separated from the continuous corrugated cardboard sheet C by the vertical cutting device 420 may be provided.

  In the blank cutting device 400, when cutting in the length direction of the continuous corrugated cardboard sheet C, first, with the conveying unit stopped, the interval between the cutting blades of the vertical cutting device 420 is set to the set sheet width. The left / right moving mechanism 424 moves the vertical cutting unit 423 along the frame 422. Thereafter, the cutting blade is lowered onto the continuous corrugated cardboard sheet C by the vertical movement mechanism 425, and in this state, the transport unit 410 is driven to make a cut. On the other hand, when making a cut in the width direction of the continuous corrugated cardboard sheet C, the conveyance unit 410 stops when the position where the cut should be made is directly below the crossing unit 433, and the cutting edge of the crossing unit 433 starts cutting. The left / right moving mechanism 434 moves the crossing unit 433 along the frame 432 so as to reach the position. After that, the cutting blade is lowered onto the continuous corrugated cardboard sheet C by the vertical movement mechanism 435, and in this state, the horizontal cutting unit 433 is driven by the left-right moving mechanism 434, and the cutting blade moves to the cutting end position, so that the cutting is performed. Can be put. At the positions at both ends in the length direction of one corrugated cardboard blank B, cuts are made all the way in the width direction. As a result, a large number of corrugated cardboard blanks B are sequentially manufactured in a state of being cut off.

  At this time, the control unit 540 adjusts the position where the cutting edge of the cross-cutting device 430 cuts into the trough portion of the corrugated sheet of the continuous corrugated cardboard sheet C based on the pitch information of the wave wave described later. To do. This adjustment is performed, for example, by adjusting the size of the portion corresponding to the lid of the cardboard box. This makes it possible to make a straight cut along the troughs of the corrugated sheet into the continuous corrugated sheet C.

  In this cardboard blank manufacturing apparatus, the user operates the control panel 550 to provide information on the dimensions (length, width, thickness, corrugation pitch, etc.) of the sheet-type cardboard sheet S, and a crease imparting section. Information on the interval of the creases to be given at 260, the type (A type, tattoo type, etc.) and size (vertical, horizontal, height dimensions) of the desired cardboard box is set. When these settings are made, the control unit 540 determines the dimensions of each part of the corrugated board blank B based on the set information, and then drives the corrugated board joining device 200 and the blank cutting device 400 to obtain a single wafer type. The continuous cardboard sheet C is manufactured from the sheet-type cardboard sheet S while the cardboard sheet S is conveyed or stopped, and the cardboard blank B is cut out while the continuous cardboard sheet C is conveyed or stopped. Note that the control unit 540 may receive data such as cardboard box dimensions that are sent online instead of manual input by the user via the control panel 550 to determine the cutting position and ruled line position. .

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to the said embodiment, A change is accept | permitted suitably in the range of the meaning of this invention.

  For example, in the corrugated paper sheet joining apparatuses 100 and 200 in the first and second embodiments, as described with reference to FIGS. 4 to 6, the adhesive margins Sa and Sb of the corrugated cardboard sheet S to be joined are crushed. Thus, the thickness of the continuous corrugated cardboard sheet C is prevented from being greatly different between the joining part and other parts. Instead, for example, as shown in FIG. At least one of the corrugated sheet W and the two liners L1 and L2 constituting S may be omitted. For example, in the example shown in FIG. 11, a region (glue margin Sa) where the lower liner L2 is not provided over a predetermined length is provided at the front end of the single-wafer cardboard sheet S, and the single-wafer corrugated cardboard A region (glue margin Sb) where the corrugated sheet W and the upper liner L1 are not provided is provided at the rear end of the sheet S over a predetermined length. When joining such a single-wafer type corrugated cardboard sheet S with the corrugated cardboard sheet joining device 200, of the two corrugated cardboard sheets S conveyed back and forth on the conveyance path, As shown in FIG. 12, the adhesive margin is applied to the margin margin Sb or the margin margin Sa at the front end of the corrugated sheet S on the rear side, and the margin margin Sb at the rear end and the margin margin Sa at the front end are as shown in FIG. The two are bonded together by pressing from above and below with overlapping or rollers. At this time, as shown in FIG. 13, the upper liner L1 and the lower liner L2 of the joined two corrugated cardboard sheets S partially overlap each other, so that stronger adhesion is possible. It becomes.

  Moreover, in the said embodiment, although the example which joins while conveying the corrugated cardboard sheet S in the direction orthogonal to a wave pattern was shown, it is not restricted to this, and it joins while conveying the corrugated cardboard sheet S in the direction parallel to a corrugated pattern. You may make it perform. In this case, for example, as shown in FIG. 14, the single-wafer type corrugated cardboard sheet S supplied to the corrugated board joining apparatus 200 is placed under a predetermined length on the front end side (the adhesive margin Sa on the front end). The side liner L2 is not provided (that is, the region is constituted only by the corrugated plate W and the upper liner L1), and the region extending over a predetermined length on the rear end side (the adhesive margin Sb on the rear end) It is assumed that the liner L1 is not provided (that is, the region is constituted only by the corrugated sheet W and the lower liner L2).

  When joining such a sheet type corrugated cardboard sheet S with the corrugated cardboard sheet joining device 100 (or the corrugated cardboard sheet joining device 200), the front side of the two corrugated cardboard sheets S transported back and forth on the transport path. FIG. 15 shows adhesive margins Sa and Sb after the adhesive is applied to the margin margin Sb at the rear end of the corrugated cardboard sheet S or the margin margin Sa at the front end of the rear corrugated cardboard sheet S. The two are bonded together by pressing from above and below with overlapping or rollers. When the adhesive margins Sa and Sb are overlapped with each other, as shown in FIG. 17, the corrugations of the corrugated sheet W of one cardboard sheet are fitted into the corrugations of the corrugated sheet W of the other corrugated sheet. To do. Thereby, it can prevent that a big difference arises in the thickness of the continuous corrugated-cardboard sheet | seat C in a joining location and another location. Further, at this time, as shown in FIG. 16, the upper liner L1 and the lower liner L2 of the joined two corrugated cardboard sheets S partially overlap each other, so that stronger adhesion is possible. It becomes.

  FIG. 18 shows an apparatus for manufacturing a sheet-type cardboard sheet S as shown in FIG. In this corrugated board manufacturing apparatus 700, a liner base paper wound in a roll shape is set on the first base paper hook 701 and the third base paper hook 703, and a core core wound up in a roll shape is set on the second base paper hook 702. The base paper is set. Here, the liner base papers set on the first base paper cover 701 and the second base paper cover 702 have the same width, and the core base paper has a width of several centimeters to several tens of centimeters wider than the liner base paper. Use things.

  A liner base paper (hereinafter referred to as “first liner L1”) drawn from the first base paper hook 701 and a core base paper M drawn from the second base paper base 702 are separated into a single-stage manufacturing machine 704 (“single-stage generating means” in the present invention). ”). The one-stage manufacturing machine 704 generates a corrugated sheet W by forming corrugated irregularities on the core base paper M (so that the corrugations are parallel to the width direction of the core base paper M). A single-sided cardboard sheet P is generated by applying an adhesive and bonding the adhesive to the first liner L1. As described above, the core base paper M is wider than the liner base paper, and the corrugated sheet W generated from the core base paper M has the first liner L1 and the right side (the lower side in FIG. 18B). Affixed in an aligned state. Accordingly, in the single-sided corrugated cardboard sheet P obtained by the single-stage manufacturing machine 704, the region extending from several centimeters to several tens of centimeters on the left side is in a state where only the corrugated sheet W is present (that is, the first liner L1 is not attached). . The single-sided cardboard sheet P obtained in this way is introduced into a gluing machine 705, and the lower surface (that is, the surface on the side of the corrugated sheet W) is glued, and the liner base paper (hereinafter referred to as the liner base paper drawn out from the third base paper hook 703). , Referred to as “second liner L2”), and introduced between the two rollers 711a and 711b. Thereby, the single-sided cardboard sheet P and the second liner L2 are pressed and bonded from above and below by the two rollers 711a and 711b to generate a double-sided cardboard sheet D (here, the gluing machine 705 and the rollers 711a and 711b This corresponds to “both stage generation means” in the present invention). At this time, since the single-sided cardboard sheet P and the second liner L2 are attached with the left side aligned, the double-sided cardboard sheet D obtained thereby has an area extending from several centimeters to several tens of centimeters on the right side. Only the liner L1 and the corrugated sheet W are in a state (that is, a state where the second liner L2 is not attached). The double-sided cardboard sheet D obtained as described above is heated by the hot plate part 706 and cooled by the cooling part 707, and then cut to a predetermined length by the cutter machine 709. Further, if necessary, the double-sided corrugated cardboard sheet D is slit or scored by a slitter / scorer 708 before being cut by the cutter 709. Thereby, the cardboard sheet S as shown in FIG. 14 is completed. The obtained corrugated cardboard sheets S are stacked by a stacker machine 710, and the corrugated sheet sheet S of the corrugated cardboard sheet joining apparatus 100 according to the present invention as shown in FIG. The second liner L2 is set so that the region where the second liner L2 is not attached is positioned on the front side in the conveying direction) and used for manufacturing the continuous cardboard sheet C.

  Further, in the first and second embodiments, the example in which the continuous corrugated cardboard sheets are manufactured by joining the single-wafer type corrugated cardboard sheets is shown, but the corrugated cardboard joining apparatus according to the present invention is not limited to this, and the bellows A continuous corrugated board sheet may be manufactured by joining long corrugated cardboard sheets folded into a shape or long corrugated cardboard sheets wound up in a roll shape. As a result, when one long corrugated cardboard sheet is used up, the end of the long corrugated cardboard sheet is automatically connected to the leading end of the next long corrugated cardboard sheet to form a continuous corrugated cardboard sheet. Paper waste can be eliminated and the apparatus does not need to be stopped to replenish the long cardboard sheet. An example of the configuration of such corrugated board joining apparatuses 800 and 900 is shown in FIGS. In these apparatuses, the sheet feeding units 810 and 910 do not have the kicker 113, and the apparatus 900 using the roll-like long corrugated cardboard sheet S is replaced by the roll instead of the sheet storage unit 111 and the bottom surface driving mechanism 112. 1 has the same configuration as that of the corrugated board bonding apparatus 100 shown in FIG. 1 except that a roll support portion 914 that rotatably supports the long corrugated cardboard sheet S is provided. Therefore, the same or corresponding components as those in FIG. In addition, it is more desirable that the corrugated sheet joining apparatuses 800 and 900 are also provided with the crease imparting section 260 as shown in FIGS. As a result, a crease 610 as shown in FIG. 10 can be given to the continuous corrugated sheet C at a certain length, and the generated continuous corrugated sheet C can be folded in a bellows shape. In the case where the continuous cardboard sheet C is manufactured from the long corrugated cardboard sheet S folded in a bellows shape, the crease providing unit 260 may form the creases 610 only at the joints between the cardboard sheets S.

  Moreover, although the other example of the corrugated cardboard sheet S joined using the corrugated cardboard sheet joining apparatuses 100 and 200 in the first and second embodiments is shown in FIG. 11 and FIG. Can do. For example, FIG. 21 is the same as the corrugated cardboard sheet S shown in FIG. 11 in that the margin part Sa and the margin part Sb are provided over a predetermined length at the front end and the rear end of the sheet-like cardboard sheet S. However, the margin portion Sa and the margin portion Sb are formed by not providing the lower liner L2 and not providing the upper liner L1, respectively. When joining such a single-wafer type corrugated cardboard sheet S with the corrugated cardboard sheet joining device 200, of the two corrugated cardboard sheets S conveyed back and forth on the conveyance path, As shown in FIG. 22, the adhesive margin is applied to the margin margin Sb or the margin margin Sa at the front end of the corrugated sheet S on the rear side, and the margin margin Sb at the rear end and the margin margin Sa at the front end are as shown in FIG. The two are bonded together by pressing from above and below with overlapping or rollers. As a result, as shown in FIG. 23, the two corrugated sheets W are overlapped at the portion where the two corrugated sheets S are joined, so that the two corrugated sheets S can be joined firmly.

  24 and 25 show a modification of the corrugated cardboard sheet S shown in FIG. The corrugated cardboard sheet (double-sided corrugated cardboard sheet) S of this example is in a state where the corrugated sheets W1 and W2 of two single-sided corrugated cardboard sheets S1 and S2 having the same size are aligned with each other, It is formed by bonding in a state shifted in a direction parallel to the eyes. As a result, the corrugated sheet S does not have the lower liner L2 in the region extending over a predetermined length on the front end side (the adhesive margin Sa on the front end), and the region extending over the predetermined length on the rear end side (rear side). The edge margin Sb) does not have the upper liner L1, and in the other region (region between the margin margin Sa and the margin margin Sb) Sc, the two corrugated plates W1 and W2 overlap. It becomes a state.

  Similarly to the corrugated cardboard sheet S shown in FIG. 14, such a single-wafer type corrugated cardboard sheet S is joined by the corrugated cardboard joining device 100 (or the corrugated cardboard joining device 200) to form a long corrugated cardboard sheet. be able to. In this example, since the two corrugated sheets overlap at the joint portion of the two corrugated cardboard sheets S, the two corrugated sheets overlap in the entire long corrugated cardboard sheet. For this reason, a very strong long cardboard sheet can be obtained.

DESCRIPTION OF SYMBOLS 100, 200 ... Corrugated-sheet joining apparatus 110, 210 ... Paper feeding part 120, 220 ... Conveying part 130, 230 ... Joining part 131, 231 ... Paper edge detection part 132, 232 ... Adhesive application part 133, 233 ... Crimping part 140 540: control unit 150, 550 ... control panel 260 ... crease crease applying unit 261a ... ruled roller 262a ... first driving unit 262b ... second driving unit 263a, 263b ... pressing member 300 ... buffer band 400 ... blank cutting device 410 ... Conveying section 420 ... Vertical cutting device 430 ... Horizontal cutting device 610 ... Fold crease 611, 612 ... Rule 700 ... Cardboard sheet manufacturing device 704 ... Single-stage manufacturing machine 705 ... Gluing machine 711a, 711b ... Roller S ... Cardboard sheet L1 ... Upper side Liner (first liner)
L2 ... Lower liner (second liner)
W ... Corrugated sheet Sa, Sb ... Paste part

Claims (12)

a) conveying means for conveying the cardboard sheet in a direction parallel to one side of the cardboard sheet;
b) joining means for joining opposite edges of the two corrugated cardboard sheets conveyed back and forth by the conveying means;
A corrugated board joining apparatus characterized by comprising: Furthermore,
c) paper feeding means for feeding the stacked sheet-like cardboard sheets one by one to the transport means;
The corrugated board joining apparatus according to claim 1, wherein Furthermore,
d) paper feeding means for pulling out one end of the corrugated cardboard sheet folded into a bellows and supplying it to the conveying means;
The corrugated board joining apparatus according to claim 1, wherein Furthermore,
e) paper feeding means for pulling out one end of the corrugated cardboard sheet wound in a roll and supplying it to the conveying means;
The corrugated board joining apparatus according to claim 1, wherein Furthermore,
f) A crease applying means for applying a crease perpendicular to the conveying direction by the conveying means to the corrugated sheet joined by the joining means at a constant interval;
The corrugated board joining apparatus according to any one of claims 1 to 4, characterized by comprising: A method for producing a continuous cardboard sheet by joining a plurality of cardboard sheets by the cardboard sheet joining apparatus according to any one of claims 1 to 5,
Forming a margin part by crushing the front end and the rear end of each cardboard sheet conveyed by the conveying means in the thickness direction in advance;
In the joining means, the glue margin provided at the rear end of the front cardboard sheet of the two cardboard sheets and the glue margin provided at the front end of the rear cardboard sheet are overlapped. A method for producing a continuous corrugated cardboard sheet. A method for producing a continuous cardboard sheet by joining a plurality of cardboard sheets by the cardboard sheet joining apparatus according to any one of claims 1 to 5,
One liner or one liner and corrugated sheet out of two liners and one corrugated sheet constituting the corrugated cardboard sheet are missing at the front and rear ends of each corrugated sheet conveyed by the conveying means. There is a glue margin,
In the joining means, the glue margin provided at the rear end of the front cardboard sheet of the two cardboard sheets and the glue margin provided at the front end of the rear cardboard sheet are overlapped. A method for producing a continuous corrugated cardboard sheet.   It is composed of a plurality of corrugated cardboard sheets arranged in a line and joined to each other with their edges overlapped, and each of the corrugated cardboard sheets is crushed in the thickness direction at the edges. Continuous cardboard sheet.   It is composed of a plurality of corrugated cardboard sheets arranged in a row and joined to each other with their edges overlapped, and each of the corrugated cardboard sheets comprises two liners constituting each corrugated cardboard sheet at the edge A continuous corrugated cardboard sheet comprising one liner or a region where one liner and the corrugated plate are missing. a) the corrugated cardboard sheet joining device according to any one of claims 1 to 5;
b) a continuous corrugated sheet conveying means for conveying the continuous corrugated sheet generated by the corrugated sheet joining apparatus;
c) a blank cutting means for cutting a cardboard blank from the continuous cardboard sheet by cutting the continuous cardboard sheet along a direction parallel to and perpendicular to the transport direction by the transport means;
A cardboard blank manufacturing apparatus comprising: On one surface of the corrugated sheet, a first liner having a width dimension that is parallel to the corrugation of the corrugated sheet is smaller than that of the corrugated sheet. Single-stage generating means for generating a single-sided corrugated cardboard sheet by pasting in a state in which one side of the first liner in the width direction is aligned;
A second liner having a width dimension smaller than that of the corrugated sheet is provided on the other surface of the corrugated sheet included in the single-faced corrugated sheet, and the second side of the corrugated sheet and the second side of the corrugated sheet. Both-stage generating means for generating a double-sided corrugated cardboard sheet by pasting in a state aligned with one side in the width direction of the liner;
A cardboard sheet manufacturing apparatus comprising: The corrugated sheets of two single-sided corrugated cardboard sheets of the same size are shifted in a state where the corrugations of the corrugated sheets are aligned and in a direction parallel to the corrugations or in a direction perpendicular to the corrugations. A corrugated sheet manufacturing apparatus comprising: a double-stage corrugated sheet generating means for generating a double-faced corrugated sheet by pasting in a state where the corrugated sheet is attached.

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