JP2019177652A - Manufacturing apparatus of corrugated cardboard sheet - Google Patents

Abstract

To provide a manufacturing apparatus of a corrugated cardboard sheet, capable of improving product quality by bonding a single-sided corrugated cardboard sheet and a liner with high precision.SOLUTION: The manufacturing apparatus is provided with a single facer, a glue application apparatus 34, 35, a double facer 22, a width direction position adjustment apparatus 54 for adjustment of a position of a surface liner A in its width direction, an imaging device (width direction position detector) 101 for detecting a position of the surface liner A in the width direction in its transportation direction of the surface liner A than the width direction position adjustment apparatus 54 on its downstream side and prior to bonding with a center core, and a control apparatus for controlling the width direction position adjustment apparatus 54 in accordance with the width direction position of the surface liner A detected by the imaging device 101.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cardboard sheet manufacturing apparatus for manufacturing a double-sided cardboard sheet by bonding a front liner, a corrugated core and a back liner.

  A corrugating machine as a corrugated sheet manufacturing apparatus includes a single facer that forms a single-sided cardboard sheet and a double facer that forms a double-sided cardboard sheet by bonding a front liner to the single-sided cardboard sheet. A single facer forms a corrugated core, and a back liner is bonded to form a single-sided cardboard sheet. A double facer bonds a front liner to the single-sided cardboard sheet to form a double-sided cardboard sheet. A continuous double-sided corrugated cardboard sheet produced by this double facer is cut to a predetermined width by a slitter scorer, and cut to a predetermined length by a cut-off to form a plate-like cardboard sheet.

  In this corrugating machine, when the single-sided cardboard sheet and the front liner are bonded together with a double facer, the glue solution is adhered to the core side of the single-sided cardboard sheet by an upstream gluing device. At this time, if the position in the width direction of the single-sided cardboard sheet and the front liner is shifted, not only the end in the width direction that has been bonded together will not become a product, but the center of the single-sided cardboard sheet will contact the hot plate of the double facer. By doing so, the paste liquid adheres to the hot plate, causing the double-sided cardboard sheet to become dirty. Therefore, adjustment is necessary so that the position in the width direction of the single-sided cardboard sheet and the front liner does not shift. That is, the positional relationship in the width direction between the single-sided corrugated cardboard sheet and the front liner is detected in advance, and if the single-sided corrugated cardboard sheet or the front liner is displaced in the width direction, the deviation is corrected and then the single-sided corrugated cardboard sheet and the front liner are Are pasted together. An example of such a technique is described in Patent Document 1 below.

Japanese Patent No. 4568266

  In the technique described in Patent Document 1 described above, a position operating device that corrects a shift in the width direction of a single-sided cardboard sheet or a front liner is disposed upstream of the preheater. Then, even if the position operation device corrects the deviation in the width direction of the single-sided cardboard sheet or the front liner, the single-sided cardboard sheet or the front liner may be shifted again in the width direction while passing through the preheater or the like. Therefore, it becomes difficult to bond the single-sided cardboard sheet and the front liner with high accuracy.

  The present invention solves the above-described problems, and an object of the present invention is to provide a corrugated cardboard sheet manufacturing apparatus that improves product quality by bonding a single-sided corrugated cardboard sheet and a liner with high accuracy.

  In order to achieve the above object, a corrugated cardboard sheet manufacturing apparatus according to the present invention includes a single facer for manufacturing a single-faced corrugated sheet by attaching a second liner to a corrugated core, and the medium in the single-faced corrugated sheet. A gluing device that attaches a glue solution to a core, a double facer that manufactures a double-sided cardboard sheet by bonding a first liner to the middle core of the single-sided cardboard sheet, and a width that adjusts the position of the first liner in the width direction A direction-direction adjusting device and a width-direction position detecting device that detects a position in the width direction of the first liner before being bonded to the core on the downstream side in the conveyance direction of the first liner from the width-direction position adjusting device. And a control device for controlling the width direction position adjusting device according to the width direction position of the first liner detected by the width direction position detecting device. The one in which the features.

  Therefore, the single facer produces a single-sided cardboard sheet by laminating the second liner to the corrugated core, and the gluing device attaches the glue solution to the core of the single-sided cardboard sheet, while the double facer A double-sided cardboard sheet is manufactured by laminating a first liner with a paste on the center of a single-sided cardboard sheet manufactured by a facer. At this time, the width direction position detection device detects the position of the first liner in the width direction downstream from the width direction position adjustment device, and the control device detects the width direction position adjustment device according to the current width direction position of the first liner. Thus, the position of the first liner in the width direction is adjusted to an appropriate position. Therefore, the position of the first liner is adjusted to an appropriate position immediately before being supplied to the double facer, and the product quality is improved by bonding the single-sided cardboard sheet and the first liner with high accuracy. Can do.

  In the corrugated cardboard sheet manufacturing apparatus of the present invention, a preheating device for preheating the single-sided corrugated cardboard sheet and the first liner is provided, and the width direction position adjusting device and the width direction position detecting device are arranged in the first direction from the preheating device. It is characterized by being arranged on the downstream side of the liner conveyance direction.

  Therefore, since the width direction position adjusting device and the width direction position detecting device are arranged downstream of the preheating device, the position of the first liner is adjusted to an appropriate position immediately before being supplied to the double facer. Thus, the single-sided cardboard sheet and the first liner can be bonded with high accuracy.

  In the cardboard sheet manufacturing apparatus of the present invention, the gluing device and the width direction position adjusting device are arranged in the same frame.

  Accordingly, since the gluing device and the width direction position adjusting device are arranged in the same frame, the gluing device and the width direction position adjusting device can be configured as a unit, simplifying the configuration and facilitating installation work. Can be planned.

  In the corrugated cardboard sheet manufacturing apparatus according to the present invention, the control device is configured so that the width of the first liner is detected according to the width-direction position of the first liner detected by the width-direction position detection device with respect to a preset reference position of the first liner. The directional position adjusting device is controlled.

  Therefore, since the position in the width direction of the first liner is adjusted according to the current position in the width direction of the first liner with respect to the reference position of the first liner, the position in the width direction of the first liner is adjusted with high accuracy. Can do.

  In the corrugated sheet manufacturing apparatus of the present invention, the width direction position detecting device can detect the position in the width direction of the single-sided cardboard sheet, and the control device detects the single-sided cardboard detected by the width-direction position detecting device. The width direction position adjusting device is controlled according to the width direction position of the first liner detected by the width direction position detecting device with respect to the width direction position of the sheet.

  Therefore, since the position of the first liner in the width direction is adjusted according to the width direction position of the first liner with respect to the width direction position of the single-sided cardboard sheet, the position of the first liner is adjusted according to the running state of the single-sided cardboard sheet. Thus, the single-sided cardboard sheet and the first liner can be bonded with high accuracy.

  In the corrugated board sheet manufacturing apparatus according to the present invention, the gluing device has a gluing area adjusting device that adjusts a gluing area to which the gluing liquid adheres to the core, and the control device is configured in the width direction. The pasting area adjusting device is controlled in accordance with the width direction position of the first liner detected by the position detecting device.

  Therefore, the control device adjusts the position in the width direction of the first liner to an appropriate position according to the position in the width direction of the first liner, and adjusts the glue area with respect to the center by the glue area adjustment device. The single-sided cardboard sheet and the first liner can be bonded with high accuracy. In addition, by adjusting with high precision so that the glue liquid does not adhere to the core outside the widthwise end of the first liner, the glue liquid does not adhere to the hot plate of the double facer, and the double-sided corrugated cardboard sheet is soiled. Can be prevented.

  In the corrugated board sheet manufacturing apparatus according to the present invention, the gluing device has a gluing area adjusting device that adjusts a gluing area to which the gluing liquid adheres to the core, and the control device is configured in the width direction. The width direction position adjusting device and the gluing area adjusting device are controlled in conjunction with each other according to the width direction position of the first liner detected by the position detecting device.

  Therefore, since the control device controls the width direction position adjusting device and the glued region adjusting device in conjunction with each other according to the width direction position of the first liner, the position of the width direction position adjusting device and the glued region adjusting device is Even when the first liner is displaced in the conveying direction of the first liner, the gluing area to the center core with respect to the width direction position of the first liner can be controlled with high accuracy, and the single-sided cardboard sheet and the first liner can be Can be bonded with accuracy.

  In the corrugated cardboard sheet manufacturing apparatus of the present invention, the control device is configured to adjust the travel direction adjustment position of the first liner adjusted by the width direction position adjusting device, and the glue of the single-sided cardboard sheet adjusted by the gluing region adjusting device. The width direction position adjusting device and the gluing region adjusting device are controlled so that the adjustment position in the running direction in the attaching region matches.

  Accordingly, the control device matches the adjustment position in the running direction in the first liner with the adjustment position in the running direction in the gluing area of the single-sided cardboard sheet, so that the single-sided cardboard sheet and the first liner are bonded with high accuracy. Can do. In addition, by adjusting with high precision so that the glue liquid does not adhere to the core outside the widthwise end of the first liner, the glue liquid does not adhere to the hot plate of the double facer, and the double-sided corrugated cardboard sheet is soiled. Can be prevented.

  According to the cardboard sheet manufacturing apparatus of the present invention, product quality can be improved by bonding the single-sided cardboard sheet and the liner with high accuracy.

FIG. 1 is a schematic diagram showing a corrugating machine as a corrugated board sheet manufacturing apparatus according to the first embodiment. FIG. 2 is a schematic diagram illustrating a configuration from a preheater to a double facer in the corrugated board sheet manufacturing apparatus according to the first embodiment. FIG. 3 is a side view showing the gluing device. FIG. 4 is a plan view showing the gluing device. FIG. 5 is a schematic configuration diagram illustrating a position adjustment control block in the width direction of the front liner and the scraping member according to the first embodiment. FIG. 6 is a flowchart for explaining the position adjustment control method in the width direction of the front liner and scraping member of the first embodiment. FIG. 7 is a flowchart for explaining a first modification of the position adjustment control method in the width direction of the front liner and the scraping member of the first embodiment. FIG. 8 is a flowchart for explaining a second modification of the position adjustment control method in the width direction of the front liner and the scraping member of the first embodiment. FIG. 9 is a schematic diagram illustrating a configuration from a preheater to a double facer in the corrugated board sheet manufacturing apparatus according to the second embodiment. FIG. 10 is a schematic configuration diagram illustrating a position adjustment control block in the width direction of the front liner and the scraping member according to the second embodiment. FIG. 11 is a flowchart for explaining a position adjustment control method in the width direction of the front liner and the scraping member according to the second embodiment.

  Exemplary embodiments of a cardboard sheet manufacturing apparatus according to the present invention will be described below in detail with reference to the accompanying drawings. In addition, this invention is not limited by this embodiment, and when there are two or more embodiments, what comprises combining each embodiment is also included.

[First Embodiment]
FIG. 1 is a schematic diagram showing a corrugating machine as a corrugated board sheet manufacturing apparatus according to the first embodiment.

  In the first embodiment, as shown in FIG. 1, a corrugating machine 10 as a corrugated cardboard manufacturing apparatus firstly attaches a back liner (second liner) C1 to a corrugated core B1 to form a single-sided corrugated cardboard sheet. D1 is manufactured. Next, a continuous double-sided cardboard sheet E1 is manufactured by laminating a front liner (first liner) A to the core B1 of the manufactured single-sided cardboard sheet D1. Then, by cutting the continuous double-sided cardboard sheet E1 into a predetermined length, a plate-like double-sided cardboard sheet F1 can be manufactured. In addition, the corrugating machine 10 first manufactures the single-sided cardboard sheet D1 described above, and manufactures the single-sided cardboard sheet D2 by bonding the back liner (second liner) C2 to the corrugated core B2. Next, the back liner C2 of the single-sided cardboard sheet D2 is bonded to the center B1 of the manufactured single-sided cardboard sheet D1, and the front liner (first liner) A is continuously bonded to the center B2 of the single-sided cardboard sheet D2. The manufactured double-sided cardboard sheet E2 is manufactured. Then, by cutting the continuous double-sided cardboard sheet E2 into a predetermined length, a plate-like double-sided cardboard sheet F2 can be manufactured.

  The corrugating machine 10 includes a mill roll stand 11 with a center core B1, a mill roll stand 12 with a back liner C1, a single facer 13, a bridge 14, a mill roll stand 15 with a center core B2, and a mill with a back liner C2. Roll stand 16, single facer 17, bridge 18, front roll liner A mill roll stand 19, preheater (preheating device) 20, glue machine 21, double facer 22, rotary 23, slitter scorer 24 And a cut-off 25, a defective product discharge device 26, and a stacker 27.

  Each of the mill roll stands 11 and 15 is provided with a roll paper in which the cores B1 and B2 are formed on both sides and wound in a roll shape, and a splicer that performs a splicing between the roll papers. Is provided. When one roll paper is being fed, the other roll paper is loaded and ready for splicing. When one roll paper is low, the splicer is spliced with the other roll paper. Is done. Therefore, the paper is continuously fed from the mill roll stands 11 and 15 toward the downstream side.

  Further, the mill roll stands 12 and 16 are each provided with roll papers in which the back liners C1 and C2 are wound in rolls on both sides, and a splicer is provided between each roll paper. When one roll paper is being fed, the other roll paper is loaded and ready for splicing. When one roll paper is low, the splicer is spliced with the other roll paper. Is done. Therefore, the paper is continuously fed from the mill roll stands 12 and 16 toward the downstream side.

  The cores B1 and B2 fed from the mill roll stands 11 and 15 and the back liners C1 and C2 fed from the mill roll stands 12 and 16 are preheated by preheaters (not shown). Each preheater has a heating roll to which steam is supplied, and the cores B1 and B2 and the back liners C1 and C2 are wound around the heating roll and conveyed to increase the temperature to a predetermined temperature.

  The single facer 13 forms a single-sided cardboard sheet D1 by processing the heated core B1 into a corrugated shape and then gluing the heated core B1 to each step top and bonding the heated back liner C1. The single facer 13 is provided with a take-up conveyor obliquely upward on the downstream side in the conveyance direction, and conveys the single-sided cardboard sheet D1 formed by the single facer 13 to the bridge 14. Since the bridge 14 absorbs the speed difference between the single facer 13 and the double facer 22, the single-sided cardboard sheet D1 can be temporarily retained.

  Further, the single facer 17 forms the one-sided cardboard sheet D2 by processing the heated core B2 into a corrugated shape and then gluing it to the tops of the steps and bonding the heated back liner C2. The single facer 17 is provided with a take-up conveyor obliquely upward on the downstream side in the conveyance direction, and conveys the single-sided cardboard sheet D2 formed by the single facer 17 to the bridge 18. Since the bridge 18 absorbs the speed difference between the single facer 17 and the double facer 22, the single-sided cardboard sheet D2 can be temporarily retained.

  The mill roll stand 19 is provided with roll paper on which the front liner A is wound in rolls on both sides, and a splicer is provided between each roll paper. When one roll paper is being fed, the other roll paper is loaded and ready for splicing. When one roll paper is low, the splicer is spliced with the other roll paper. Is done. Therefore, the paper is continuously fed from the mill roll stand 19 toward the downstream side.

  In the preheater 20, three preheating rolls 31, 32, and 33 are arranged in the vertical direction. The preheating roll 31 is for heating the front liner A, the preheating roll 32 is for heating the single-sided cardboard sheet D2, and the preheating roll 33 is for heating the single-sided cardboard sheet D1. Each preheating roll 31, 32, 33 has a winding amount adjusting device (not shown), is supplied with steam and heated to a predetermined temperature, and has a front liner A and a single-sided cardboard sheet on its peripheral surface. D2 can be preheated by winding the single-sided cardboard sheet D1.

  In the glue machine 21, the pasting devices 34 and 35 are arranged side by side in the vertical direction. The gluing device 34 is for gluing by contacting each top of the step of the core B2 in the single-sided cardboard sheet D2 heated by the preheating roll 32. The gluing device 35 is for gluing by contacting each top of the step of the core B1 in the single-sided cardboard sheet D1 heated by the preheating roll 33. The single-sided cardboard sheets D1 and D2 glued by the glue machine 21 are transferred to the double facer 22 of the next process. Further, the front liner A heated by the preheating roll 31 is also transferred to the double facer 22 through the glue machine 21.

  The double facer 22 has a heating section 36 on the upstream side and a cooling section 37 on the downstream side along the traveling lines of the single-sided cardboard sheets D1 and D2 and the front liner A. The single-sided corrugated cardboard sheets D1 and D2 and the front liner A glued by the glue machine 21 are carried between the pressure belt and the hot plate by the heating section 36, and are cooled together in an overlapping state. It is transported towards section 37. During this transfer, the single-sided cardboard sheets D1 and D2 and the front liner A are heated while being pressurized, so that they are bonded together to form a continuous double-sided cardboard sheet E2, which is then naturally cooled while being conveyed. Note that when the double-sided cardboard sheet E1 is manufactured, the single-sided cardboard sheet D2 is not manufactured. Therefore, the single-sided cardboard sheet D1 and the front liner A are heated while being pressed, so that the double-sided cardboard sheet E1 is continuously bonded to each other. It becomes.

  The double-sided cardboard sheet E2 (double-sided cardboard sheet E1) manufactured by the double facer 22 is transferred to the slitter scorer 24. The slitter scorer 24 cuts a wide double-sided cardboard sheet E2 along the transport direction so as to have a predetermined width, and processes a ruled line extending in the transport direction. The slitter scorer 24 includes a first slitter scorer unit 38 and a second slitter scorer unit 39 having substantially the same structure arranged along the conveyance direction of the double-sided cardboard sheet E2. The wide double-sided cardboard sheet E2 is cut by the slitter scorer 24 to form a double-sided cardboard sheet E2 having a predetermined width.

  The cut-off 25 cuts the double-sided cardboard sheet E2 cut in the transport direction by the slitter scorer 24 along the width direction to form a plate-like double-sided cardboard sheet F2 (double-sided cardboard sheet F1) having a predetermined length. To form. The defective product discharge device 26 discharges the double-sided corrugated cardboard sheet F2 determined as a defective product by a defect detection device, which will be described later, from the conveyance line. The stacker 27 stacks the double-sided corrugated cardboard sheets F2 determined to be non-defective products and discharges them as products to the outside of the machine.

  Note that, as described above, the corrugating machine 10 according to the first embodiment is capable of producing the plate-like double-sided cardboard sheet F1 and the plate-like double-sided cardboard sheet F2. However, the cutting process and the cutting process described below are almost similar work processes. Therefore, in the following description, the continuous double-sided cardboard sheet E1 and the continuous double-sided cardboard sheet E2 are represented as a continuous double-sided cardboard sheet E, and the plate-like double-sided cardboard sheet F1 and the plate-like double-sided cardboard sheet F2 are represented by plate-like shapes. Represented as a double-sided cardboard sheet F.

  The corrugating machine 10 can adjust the position of the front liner A in the width direction between the single facers 13, 17 and the double facer 22, and the glue machine 21 according to the position of the front liner A in the width direction. It is possible to adjust the pasting position on the single-sided corrugated cardboard sheets D1, D2.

  FIG. 2 is a schematic diagram illustrating a configuration from a pre-heater to a double facer in the corrugated board sheet manufacturing apparatus according to the first embodiment, FIG. 3 is a side view illustrating a gluing apparatus, and FIG. 4 is a plan view illustrating the gluing apparatus. FIG. 5 is a schematic configuration diagram illustrating a position adjustment control block in the width direction of the front liner and the scraping member.

  As shown in FIG. 2, the preheater 20 has preheating rolls 31, 32, and 33 arranged side by side in the vertical direction and is rotatably supported by a frame 41. The preheating roll 31 is provided with two support rolls 42 and 43 around it, and can support and heat the front liner A. The preheating roll 32 is provided with two support rolls 44 and 45 around it, and can heat the single-sided cardboard sheet D2. The preheating roll 33 is provided with two support rolls 46 and 47 around it, and can heat the single-sided cardboard sheet D1. The preheating rolls 31, 32 and 33 can adjust the winding amount of the front liner A and the single-sided cardboard sheets D2 and D1 by moving the support rolls 43, 45 and 47 in the circumferential direction. The frame 41 is provided with guide rolls 48, 49, 50 for guiding the preheated front liner A and single-sided cardboard sheets D2, D1 to the glue machine 21.

  In the glue machine 21, the pasting devices 34 and 35 are arranged side by side in the vertical direction. The gluing device 34 is for gluing the core B2 of the single-sided cardboard sheet D2, and the gluing device 35 is for gluing the core B1 of the single-sided cardboard sheet D1. Here, the gluing devices 34 and 35 will be described in detail. Since the gluing devices 34 and 35 have substantially the same configuration, only the gluing device 34 will be described in detail.

  As shown in FIGS. 3 and 4, the gluing device 34 includes a glue bath 71, a gluing roll 72, a doctor roll 73, a scraping member 74, a damming member 75, and a lidar roll 76. Have.

  The end of the glued roll 72 is rotatably supported by the apparatus frame 82 by a bearing 81. An end of the doctor roll 73 is rotatably supported by the apparatus frame 82 by a bearing (not shown), and a nip portion with a predetermined gap is secured between the doctor roll 73 and the glued roll 72. The end of the rider roll 76 is rotatably supported on the apparatus frame 82 by a bearing (not shown), and the single-sided cardboard sheet D2 is conveyed between the glue roll 72. The gluing roll 72 can be driven and rotated in the direction of the arrow in FIG. 2 by a driving device (not shown), the doctor roll 73 can be driven and rotated in the direction of the arrow in FIG. It can rotate freely in the direction of the arrow.

  The glue liquid tank 71 is open at the top and can store glue liquid inside, and a part of the glued roll 72 can contact the glue liquid and adhere the glue liquid to the surface. In the paste liquid tank 71, a storage pan 83 is disposed below. A seal plate 84 is fixed to one end of the paste liquid tank 71, and the seal plate 84 is disposed with a predetermined gap with respect to the surface of the glued roll 72. Therefore, the paste liquid tank 71 does not leak down the glue liquid in the glue liquid tank 71 when the glue roll 72 rotates, but the paste liquid in the glue liquid tank 71 is downward when the glue roll 72 stops. Leaked into the storage pan 83.

  The scraping member 74 is in pressure contact with the upstream surface in the rotational direction from the nip portion of the gluing roll 72 with the doctor roll 73 and adheres the glue solution to the outside of the gluing area of the core B2 in the single-sided cardboard sheet D2. Is to regulate. The scraping member 74 is fixed to the damming member 75, and the tip portion is pressed against the surface of the gluing roll 72. Therefore, the scraping member 74 is in contact with the surface of the glued roll 72 and can substantially scrape off the glue film adhering to the glued roll 72. The damming member 75 is in contact with the surface on the downstream side in the rotational direction from the contact position of the scraping member 74 on the upstream side in the rotational direction from the nip portion with the doctor roll 73 in the gluing roll 72, and in the single-sided cardboard sheet D2. The adhesive liquid that protrudes from the pasting area of the core B2 is blocked.

  The device frame 82 is fixed to the ends of the guide rails 85 parallel to the rolls 43, 44, 47. In the guide rail 85, the moving plate 86 is disposed upward along a direction orthogonal to the guide rail 85. The moving plate 86 is supported such that a slide member 87 fixed to the base end portion is movable along the guide rail 85. The drive motor 88 is fixed to the apparatus frame 82, and a screw shaft 89 connected to the drive shaft is screwed into the slide member 87. Therefore, when the drive motor 88 is driven, the screw shaft 89 rotates, and the moving plate 86 can be moved along the guide rail 85 via the slide member 87 to be screwed.

  A support arm 90 is connected to the distal end of the moving plate 86, and the support arm 90 extends to the gluing roll 72 side, and a scraping member 74 and a damming member 75 are attached to the distal end. Since the scraping member 74 and the damming member 75 are supported by the same support arm 90, the scraping member 74 and the damming member 75 are easily positioned with respect to the glued roll 72 and moved in the axial direction of the glued roll 72 to adjust the position. It can be done easily. The positions of the scraping member 74 and the damming member 75 can be adjusted according to the width of the front liner A attached to the single-sided cardboard sheet D2.

  In other words, when the single-sided cardboard sheet D2 is conveyed to the glued roll 72, the glued area on the single-sided cardboard sheet D2 is adjusted according to the width of the front liner A that is bonded to the single-sided cardboard sheet D2. Here, when the width of the single-sided cardboard sheet D2 and the width of the front liner A are the same, the gluing area of the single-sided cardboard sheet D2 is adjusted to be narrower than the width of the front liner A. That is, by moving the moving plate 86 in the axial direction of the gluing roll 72 by the drive motor 88, the scraping member 74 and the damming member 75 are moved in the width direction of the single-sided cardboard sheet D2, and the glue of the single-sided cardboard sheet D2 is set. The attached area can be adjusted. Here, the pasting area adjusting device 91 is configured by the drive motor 88, the moving plate 86, the scraping member 74, the damming member 75, and the like.

  Further, as shown in FIG. 2, the glue machine 21 has a preheating roll 51 and two support rolls 52 and 53 arranged below the gluing device 34, and supports the front liner A for heating. can do. Further, the glue machine 21 is provided with a width direction position adjusting device 54 below the gluing device 34 and adjacent to the preheating roll 51, and supports the front liner A and adjusts the running position in the width direction. can do. The width direction position adjusting device 54 has a pair of upper and lower adjustment rolls 55, 56 around which the front liner A sent from the preheating roll 51 and the support roll 53 is wound. By adjusting the angle of at least one of the adjustment rolls 55 and 56, the supporting liner A is moved to one or the other in the width direction, so that the traveling position in the width direction can be adjusted. The gluing devices 34 and 35, the preheating roll 51, the support rolls 52 and 53, and the width direction position adjusting device 54 are supported by the frame 57.

  The double facer 22 heats the single-sided cardboard sheet D2 and the front liner A while applying pressure, thereby producing a continuous double-sided cardboard sheet E1 that is bonded together. The double facer 22 heats the single-sided cardboard sheets D1 and D2 and the front liner A while applying pressure to produce a continuous double-sided cardboard sheet E2 bonded together. Note that a guide roll 61, a preheating roll 62, and support rolls 63 and 64 are disposed between the width direction position adjusting device 54 and the double facer 22. Further, guide rolls 66 and 67 are disposed between the pasting devices 34 and 35 and the support roll 65 of the double facer 22.

  The corrugating machine 10 can automatically adjust the traveling position in the width direction of the front liner A before being introduced into the double facer 22 by the width direction position adjusting device 54. An imaging device 101 is provided as a width direction position detection device that detects the position in the width direction of the front liner A before being bonded to the core B2 on the downstream side in the conveyance direction of the front liner A from the width direction position adjustment device 54. ing. As shown in FIG. 5, the control device 102 controls the width direction position adjustment device 54 based on the photographed image of the front liner A taken by the imaging device 101.

  Further, the corrugating machine 10 can automatically adjust the pasting area for the single-sided cardboard sheets D1 and D2 before being introduced into the double facer 22 by the pasting area adjusting device 91. The gluing area adjusting device 91 sets a gluing area for the single-sided cardboard sheets D1, D2 in accordance with the position in the width direction of the front liner A before being bonded to the center core B2. The control device 102 controls the pasting area adjustment device 91 based on the photographed image of the front liner A taken by the imaging device 101.

  In this case, the control device 102 may control the gluing area adjustment device 91 according to the position adjustment amount in the width direction of the front liner A by the width direction position adjustment device 54. Further, the control device 102 adjusts the travel direction adjustment position in the front liner A adjusted by the width direction position adjustment device 54 and the travel direction in the pasting area of the single-faced cardboard sheets D1 and D2 adjusted by the pasting area adjustment device 91. It is preferable to control the width direction position adjusting device 54 and the pasting area adjusting device 91 so that the adjustment position matches.

  Here, the width direction position adjusting device 54 and the imaging device 101 are disposed downstream of the preheater 20 in the transport direction of the front liner A. The gluing devices 34 and 35 and the width direction position adjusting device 54 are arranged in the same frame 57. Further, the imaging device 101 is disposed on the frame 57 above the travel path of the front liner A and below the travel path of the single-sided cardboard sheet D2.

  The control device 102 includes an image processing device 111, a liner width direction deviation amount calculation unit 112, a first determination unit 113, an adjustment roll adjustment amount calculation unit 114, a glued region deviation amount calculation unit 115, and a second determination. Unit 116 and a pasting area adjustment amount calculation unit 117. The control device 102 is connected to the imaging device 101, the production management device 121, the operation device 122, the display device 123, the storage device 124, the width direction position adjustment device 54, and the gluing area adjustment device 91. Has been.

  The imaging device 101 images the front liner A immediately before being supplied to the double facer 22 on the downstream side of the preheating roll 62 from above. The imaging device 101 can capture an area of the full width of the front liner A. The imaging apparatus 101 is, for example, one or a plurality of line cameras, and can capture an image of a plurality of pixels along the width direction of the front liner A. The image processing device 111 defines left and right end portions in the width direction of the front liner A based on the captured image captured by the imaging device 101. The image processing apparatus 111 captures a predetermined length in the width direction of the front liner A as one pixel and the entire length in the width direction of the front liner A as an image of a plurality of pixels.

  The liner width direction deviation amount calculation unit 112 is based on the left and right end portions of the specified front liner A, and the center in the width direction in the reference travel path of the front liner A (the center in the width direction in the transport device of the front liner A). The shift amount of the end portion in the width direction of the front liner A is calculated. The first determination unit 113 determines whether or not the shift amount of the end portion in the width direction of the front liner A is equal to or less than a preset first determination value. The adjustment roll adjustment amount calculation unit 114 adjusts according to the calculated shift amount of the front liner A in the width direction when it is determined that the shift amount of the end portion of the front liner A in the width direction is larger than the first determination value. The operation amount of the rolls 55 and 56 is calculated.

  The gluing area deviation amount calculation unit 115 calculates the deviation amount of the gluing area with respect to the single-sided cardboard sheets D1 and D2 based on the left and right ends of the front liner A defined by the image processing apparatus 111. The second determination unit 116 determines whether or not the shift amount of the pasting area is equal to or less than a second determination value set in advance. When it is determined that the shift amount of the glue area is larger than the second determination value, the glue area adjustment amount calculation unit 117 determines the glue corresponding to the calculated shift amount of the glue area with respect to the single-sided cardboard sheets D1 and D2. The adjustment amount of the attachment area, that is, the operation amount of the scraping member 74 is calculated.

  Further, the production management device 121 provides the control device 102 with the width in the width direction of the front liner A, the back liners C1 and C2, and the cores B1 and B2, the pasting area of the single-sided cardboard sheets D1 and D2 with respect to the front liner A, etc. Output. The operation device 122 is used by an operator to input a command value to the control device 102 as necessary. The display device 123 includes a liner width direction deviation calculation unit 112, a first determination unit 113, an adjustment roll adjustment amount calculation unit 114, a gluing region deviation amount calculation unit 115, a second determination unit 116, and a gluing region adjustment amount calculation unit. The calculation result 117 is displayed. The storage device 124 includes a liner width direction deviation calculation unit 112, a first determination unit 113, an adjustment roll adjustment amount calculation unit 114, a gluing region deviation amount calculation unit 115, a second determination unit 116, and a gluing region adjustment amount calculation unit. 117 calculation results and the like are stored.

  Here, the control processing of the width direction position adjusting device 54 and the pasting area adjusting device 91 by the control device 102 will be described in detail. FIG. 6 is a flowchart for explaining a position adjustment control method in the width direction of the front liner and the scraping member.

  In the control processing of the width direction position adjusting device 54 and the glued region adjusting device 91 by the control device 102, as shown in FIGS. 2, 5, and 6, the imaging device 101 is configured to preheat the rolls 31, 51 in step S11. The front liner A before being heated and supplied to the double facer 22 is imaged. In step S <b> 12, the image processing apparatus 111 detects and defines the positions of the left and right end portions in the width direction of the front liner A based on the captured image captured by the imaging apparatus 101. For example, the image processing apparatus 111 defines the positions of the left and right end portions in the width direction of the front liner A with respect to the center in the width direction on the reference travel route of the front liner A. In this case, the center in the width direction of the reference travel path of the front liner A is the center in the corrugating machine 10 and the center in the width direction of the liner transport path, so-called machine center.

  In step S13, the liner width direction deviation amount calculation unit 112 calculates the width direction reference position of the left and right ends with respect to the center in the width direction on the reference travel route of the front liner A and the left and right end portions of the current front liner A. The amount of deviation from the current position in the width direction is calculated. In step S14, the first determination unit 113 determines whether or not the amount of deviation of the front liner A from the end in the width direction is within an allowable range, that is, whether or not it is equal to or less than the first determination value. Here, if it is determined that the deviation amount of the end portion in the width direction of the front liner A is equal to or smaller than the first determination value (Yes), this routine is exited without doing anything. On the other hand, if it is determined (No) that the shift amount of the end portion in the width direction of the front liner A is greater than the first determination value (No), the adjustment roll adjustment amount calculation unit 114 calculates the calculated front liner A in step S15. The operation amount of the adjustment rolls 55 and 56 corresponding to the amount of deviation in the width direction is calculated. In step S <b> 16, the control device 102 controls the width direction position adjustment device 54 and operates the adjustment rolls 55 and 56.

  When the positions of the left and right end portions in the width direction of the front liner A with respect to the center in the width direction on the reference travel route of the front liner A are defined in step S12, the amount of pasting area deviation is calculated in step S21. The unit 115 is based on the pasting areas of the single-sided corrugated cardboard sheets D1, D2 by the current pasting devices 34, 35 and the pasting devices 34, 35 according to the current position in the width direction of the left and right ends of the current front liner A. The amount of deviation from the glued area of the single-sided cardboard sheets D1, D2 is calculated. In step S22, the second determination unit 116 determines whether or not the amount of deviation of the glued areas of the single-sided cardboard sheets D1 and D2 is within an allowable range, that is, whether or not it is equal to or less than the second determination value. Here, if it is determined that the shift amount of the glued area of the single-sided corrugated cardboard sheets D1 and D2 is equal to or smaller than the second determination value (Yes), this routine is exited without doing anything. On the other hand, if it is determined (No) that the shift amount of the glued area of the single-sided cardboard sheets D1, D2 is larger than the second judgment value, the glued area adjustment amount calculation unit 117 calculates the calculated one-sided sheet in step S23. An adjustment amount of the gluing area corresponding to the amount of shift of the gluing area with respect to the corrugated cardboard sheets D1, D2, that is, an operation amount of the scraping member 74 is calculated. In step S <b> 24, the control device 102 controls the gluing area adjustment device 91 and operates the scraping member 74.

  Note that the control processing of the width direction position adjusting device 54 and the pasting area adjusting device 91 by the control device 102 of the first embodiment is not limited to the above-described one. FIG. 7 is a flowchart for explaining a first modification of the position adjustment control method in the width direction of the front liner and the scraping member, and FIG. 8 is a flowchart of the position adjustment control method in the width direction of the front liner and the scraping member. It is a flowchart for demonstrating 2 modifications.

  In the first modification of the control processing of the width direction position adjusting device 54 and the glued area adjusting device 91 by the control device 102, the processing from step S11 to step S16 is the same as described above, as shown in FIG. In step S16, when the control device 102 controls the width direction position adjusting device 54 and operates the adjustment rolls 55 and 56, the control device 102 calculates the travel amount of the front liner A in step S17. . That is, the control device 102 calculates the timing (time) when the correction position of the front liner A adjusted by the width direction position adjusting device 54 (adjustment rolls 55 and 56) enters the imaging range of the imaging device 101. In step S <b> 18, the control device 102 determines whether the correction position of the front liner A has reached the imaging range of the imaging device 101. If it is determined (No) that the correction position of the front liner A has not reached the imaging range of the imaging apparatus 101, the process returns to step S17. On the other hand, if it is determined that the correction position of the front liner A has reached the imaging range of the imaging apparatus 101 (Yes), the process returns to step S11, and the processing from step S11 to step S18 is executed again.

  On the other hand, the processing from step S21 to step S24 is the same as described above.

  Further, in the second modification of the control processing of the width direction position adjusting device 54 and the pasting area adjusting device 91 by the control device 102, the processing from step S11 to step S16 is the same as described above, as shown in FIG. is there.

  When the operation amounts of the adjustment rolls 55 and 56 are calculated in step S15, the pasting area deviation amount calculation unit 115 of the single-sided cardboard sheets D1 and D2 by the current pasting devices 34 and 35 is obtained in step S31. The amount of shift between the pasting area and the pasting area of the single-sided cardboard sheets D1, D2 by the pasting devices 34, 35 according to the current position in the width direction of the left and right ends of the front liner A is calculated. In step S32, the second determination unit 116 determines whether or not the amount of deviation of the glued areas of the single-sided cardboard sheets D1 and D2 is equal to or smaller than the second determination value. Here, if it is determined that the shift amount of the glued area of the single-sided corrugated cardboard sheets D1 and D2 is equal to or smaller than the second determination value (Yes), this routine is exited without doing anything. On the other hand, if it is determined (No) that the shift amount of the glued area of the single-sided cardboard sheets D1, D2 is larger than the second judgment value, the glued area adjustment amount calculation unit 117 calculates the calculated one-sided sheet in step S33. An adjustment amount of the gluing area corresponding to the amount of shift of the gluing area with respect to the corrugated cardboard sheets D1, D2, that is, an operation amount of the scraping member 74 is calculated.

  In step S34, the control device 102 calculates an elapsed time according to the difference between the travel distance L1 of the single-sided cardboard sheets D1 and D2 and the travel distance L2 of the front liner A. Here, the travel distance L1 of the single-sided cardboard sheets D1, D2 is the length in the conveying direction of the single-sided cardboard sheets D1, D2 from the contact position of the glued roll 72 and the scraping member 74 to the arrival position of the double facer 22. The travel distance L2 of the front liner A is the length in the transport direction of the front liner A from the adjustment position by the width direction position adjusting device 54 to the arrival position of the double facer 22. The control device 102 calculates the arrival time by dividing the travel distance L1 of the single-sided cardboard sheets D1 and D2 by the transport speed of the single-sided cardboard sheets D1 and D2, and also calculates the travel distance L2 of the front liner A as the transport speed of the front liner A. Is calculated by subtracting the arrival time of the front liner A from the arrival time of the single-sided cardboard sheets D1 and D2, that is, the arrival time of the single-sided cardboard sheets D1 and D2 and the arrival of the front liner A Calculate the difference from time.

  In step S35, the control device 102 controls the gluing area adjusting device 91 so that the adjustment position in the running direction on the front liner A matches the adjustment position in the running direction in the gluing area of the single-sided cardboard sheets D1 and D2. To do. That is, when the traveling distance L2 of the front liner A is longer than the traveling distance L1 of the single-sided cardboard sheets D1, D2 and the front liner A, the width direction position adjusting device 54 When the gluing area adjusting device 91 is operated simultaneously, the adjustment position in the running direction in the gluing area of the single-sided corrugated cardboard sheets D1 and D2 reaches the arrival position of the double facer 22 earlier than the adjustment position in the running direction on the front liner A. Therefore, the glued area adjusting device 91 is controlled to operate the scraping member 74 after a predetermined time has elapsed with respect to the operation of the width direction position adjusting device 54.

  As described above, in the corrugated sheet manufacturing apparatus according to the first embodiment, the single facers 13 and 17, the pasting apparatuses 34 and 35, the double facer 22, and the width for adjusting the position of the front liner A in the width direction. Directional position adjusting device 54 and an imaging device (width) for detecting the position in the width direction of the front liner A before being bonded to the cores B1 and B2 on the downstream side of the conveying direction of the front liner A from the width direction position adjusting device 54 (Direction position detection device) 101 and a control device 102 for controlling the width direction position adjustment device 54 in accordance with the width direction position of the front liner A detected by the imaging device 101 are provided.

  Accordingly, the single facers 13 and 17 manufacture the single-sided cardboard sheets D1 and D2 by bonding the back liners C1 and C2 to the corrugated cores B1 and B2, and the gluing devices 34 and 35 are used for the single-sided cardboard sheets. Adhesive liquid is adhered to the cores B1 and B2 in D1 and D2, and the double facer 22 uses the adhesive on the cores B1 and B2 in the single-sided cardboard sheets D1 and D2 manufactured by the single facers 13 and 17, and the front liner A The double-sided corrugated cardboard sheets E1 and E2 are manufactured by bonding. At this time, the imaging device 101 detects the position of the front liner A in the width direction downstream of the width direction position adjusting device 54, and the control device 102 determines the width direction position adjusting device according to the current width direction position of the front liner A. 54, the position of the front liner A in the width direction is adjusted to an appropriate position. Therefore, the front liner A is adjusted to an appropriate position in the width direction immediately before being supplied to the double facer 22, and the product quality can be improved by bonding the single-sided cardboard sheets D1 and D2 and the front liner A with high accuracy. Improvements can be made.

  In the corrugated cardboard manufacturing apparatus of the first embodiment, the preheater 20 for preheating the single-sided corrugated cardboard sheets D1 and D2 and the front liner A is provided, and the width direction position adjusting device 54 and the imaging device 101 are arranged on the front liner A from the preheater 20. It is arranged downstream in the transport direction. Therefore, the position of the front liner A in the width direction is adjusted to an appropriate position immediately before being supplied to the double facer 22, and the single-sided cardboard sheets D1 and D2 and the front liner A can be bonded with high accuracy.

  In the corrugated board sheet manufacturing apparatus according to the first embodiment, the pasting apparatuses 34 and 35 and the width direction position adjusting apparatus 54 are arranged in the same frame 57. Therefore, the gluing devices 34 and 35 and the width direction position adjusting device 54 can be configured as a unit, and the configuration can be simplified and the installation work can be facilitated.

  In the corrugated board sheet manufacturing apparatus according to the first embodiment, the control device 102 controls the width direction position adjusting device 54 in accordance with the current width direction position of the front liner A with respect to a preset reference position of the front liner A. Therefore, the position of the front liner A in the width direction can be adjusted with high accuracy.

  In the cardboard sheet manufacturing apparatus according to the first embodiment, the gluing devices 34 and 35 have a gluing area adjustment device 91 that adjusts a gluing area to which the gluing liquid adheres to the cores B1 and B2, and controls them. The apparatus 102 controls the pasting area adjusting apparatus 91 according to the position in the width direction of the front liner A detected by the imaging apparatus 101. Therefore, the control device 102 adjusts the position in the width direction of the front liner A to an appropriate position in accordance with the position in the width direction of the front liner A, and sets the pasting area for the cores B1 and B2 by the pasting area adjustment device 91. Thus, the single-sided cardboard sheets D1 and D2 and the front liner A can be bonded with high accuracy.

  In the corrugated board sheet manufacturing apparatus according to the first embodiment, the control device 102 interlocks the width direction position adjusting device 54 and the glued region adjusting device 91 in accordance with the width direction position of the front liner A detected by the imaging device 101. Control. Accordingly, since the width direction position adjusting device 54 and the glued area adjusting device 91 are controlled in conjunction with each other according to the width direction position of the front liner A, the positions of the width direction position adjusting device 54 and the glued area adjusting device 91 are controlled. However, the single-sided corrugated cardboard sheets D1 and D2 and the front liner A can be bonded with high accuracy even if they are arranged so as to be shifted in the conveying direction of the front liner A.

  In the corrugated cardboard sheet manufacturing apparatus of the first embodiment, the control device 102 adjusts the adjustment position in the running direction on the front liner A adjusted by the width direction position adjusting device 54 and the single-sided corrugated cardboard sheet D1 adjusted by the gluing area adjusting device 91. , D2 to control the width direction position adjusting device 54 and the pasting region adjusting device 91 so that the adjustment position in the running direction in the pasting region coincides with D2. Therefore, the control device 102 can bond the single-sided cardboard sheets D1 and D2 and the front liner A with high accuracy.

[Second Embodiment]
FIG. 9 is a schematic diagram illustrating a configuration from a pre-heater to a double facer in the corrugated board sheet manufacturing apparatus according to the second embodiment, and FIG. FIG. In addition, the same code | symbol is attached | subjected to the member which has the same function as embodiment mentioned above, and detailed description is abbreviate | omitted.

  In the second embodiment, as shown in FIGS. 9 and 10, the corrugating machine can automatically adjust the travel position in the width direction of the front liner A before being introduced into the double facer 22 by the width direction position adjusting device 54. ing. An imaging device 101 is provided as a width direction position detection device that detects the position in the width direction of the front liner A before being bonded to the core B2 on the downstream side in the conveyance direction of the front liner A from the width direction position adjustment device 54. ing. Further, imaging devices 103 and 104 are provided as width direction position detection devices for detecting the position in the width direction of the single-sided cardboard sheets D1 and D2 before being bonded to the front liner A. The control device 105 controls the width direction position adjusting device 54 based on the photographed images of the front liner A and the single-sided corrugated cardboard sheets D1, D2 imaged by the imaging devices 101, 103, 104.

  Further, the corrugating machine can automatically adjust the pasting area for the single-sided cardboard sheets D1 and D2 before being introduced into the double facer 22 by the pasting area adjusting device 91. The gluing area adjusting device 91 sets a gluing area for the single-sided cardboard sheets D1, D2 in accordance with the position in the width direction of the front liner A before being bonded to the center core B2. The control device 105 controls the pasting area adjustment device 91 based on the photographed image of the front liner A taken by the imaging device 101.

  Here, the width direction position adjusting device 54 and the imaging devices 101, 103, and 104 are disposed downstream of the preheater 20 in the conveying direction of the front liner A. The imaging device 101 is disposed above the travel path of the front liner A and below the travel path of the single-sided cardboard sheet D2. Furthermore, the imaging devices 103 and 104 are disposed above the traveling paths of the single-sided cardboard sheets D1 and D2, respectively.

  The control device 105 includes an image processing device 131, a liner width direction deviation amount calculation unit 132, a third determination unit 133, an adjustment roll adjustment amount calculation unit 134, a glued region deviation amount calculation unit 115, and a second determination. Unit 116 and a pasting area adjustment amount calculation unit 117. Further, the control device 105 includes an imaging device 101, 103, 104, a production management device 121, an operation device 122, a display device 123, a storage device 124, a width direction position adjustment device 54, and a gluing area adjustment device. 91 is connected.

  The imaging device 101 images the front liner A immediately before being supplied to the double facer 22 on the downstream side of the preheating roll 62 from above. The imaging devices 103 and 104 image the single-sided cardboard sheets D1 and D2 immediately before being supplied to the double facer 22 on the downstream side of the preheating roll 62 from above. The imaging devices 103 and 104 can capture an area of the full width of the single-sided cardboard sheets D1 and D2.

  The liner width direction deviation amount calculation unit 132 calculates the deviation amount of the center position in the width direction of the front liner A with respect to the center in the width direction of the single-sided cardboard sheets D1 and D2. In this case, it is preferable to calculate the shift amount of the center position in the width direction of the front liner A with respect to the center in the width direction of the single-sided cardboard sheet D2 to which the front liner A is directly bonded. However, the shift amount of the center position in the width direction of the front liner A with respect to the center in the width direction of the single-sided cardboard sheet D1 may be calculated, or the front liner A with respect to the average position of the center in the width direction of the single-sided cardboard sheets D1 and D2. The amount of deviation of the center position in the width direction may be calculated. The third determination unit 133 determines whether or not the deviation amount of the center in the width direction of the front liner A is equal to or less than a preset third determination value. The adjustment roll adjustment amount calculation unit 134 adjusts according to the calculated shift amount of the front liner A in the width direction when it is determined that the shift amount of the end portion of the front liner A in the width direction is larger than the third determination value. The operation amount of the rolls 55 and 56 is calculated.

  The pasting area deviation amount calculation unit 115, the second determination unit 116, and the pasting area adjustment amount calculation unit 117 are the same as those in the first embodiment.

  Here, the control processing of the width direction position adjusting device 54 and the pasting area adjusting device 91 by the control device 105 will be described in detail. FIG. 11 is a flowchart for explaining a position adjustment control method in the width direction of the front liner and the scraping member according to the second embodiment.

  In the control processing of the width direction position adjusting device 54 and the glued region adjusting device 91 by the control device 105, as shown in FIGS. 9 to 11, in step S41, the imaging devices 103 and 104 are moved by the preheating rolls 32 and 33. The single-sided cardboard sheets D1 and D2 before being heated and supplied to the double facer 22 are imaged. In step S42, the image processing device 131 detects and defines the positions of the left and right end portions in the width direction of the single-sided cardboard sheets D1 and D2 based on the captured images captured by the imaging devices 103 and 104. In step S43, the image processing apparatus 131 defines the center position in the width direction based on the positions of the end portions in the width direction of the defined single-sided cardboard sheets D1 and D2. On the other hand, in step S44, the imaging device 101 images the front liner A. In step S <b> 45, the image processing apparatus 131 detects and defines the positions of the left and right end portions in the width direction of the front liner A based on the captured image captured by the imaging apparatus 101. In step S46, the image processing apparatus 131 defines the position of the center in the width direction based on the position of the end portion in the width direction of the defined front liner A.

  In step S47, the liner width direction deviation amount calculation unit 132 calculates the deviation amount between the center position in the width direction of the single-sided cardboard sheet D2 (D1) and the center position in the width direction of the front liner A. In step S48, the third determination unit 133 determines whether the deviation amount between the center in the width direction of the single-sided cardboard sheet D2 (D1) and the center in the width direction of the front liner A is within an allowable range, that is, the third It is judged whether it is below the judgment value. Here, if it is determined that the deviation amount of the center of the front liner A in the width direction is equal to or less than the third determination value (Yes), this routine is exited without doing anything. On the other hand, if it is determined (No) that the shift amount of the center of the front liner A in the width direction is larger than the third determination value (No), the adjustment roll adjustment amount calculating unit 134 calculates the calculated front liner A in step S49. The operation amount of the adjustment rolls 55 and 56 corresponding to the shift amount of the center in the width direction is calculated. In step S <b> 50, the control device 105 controls the width direction position adjustment device 54 to operate the adjustment rolls 55 and 56.

  The imaging devices 103 and 104 image the single-sided cardboard sheets D1 and D2, and the image processing device 131 detects and defines the positions of the left and right end portions in the width direction of the single-sided cardboard sheets D1 and D2 based on the captured image. Since the center position in the width direction of the single-sided cardboard sheets D1 and D2 is defined, when the other center position of the single-sided cardboard sheets D1 and D2 is deviated from one of the single-sided cardboard sheets D1 and D2, it is not shown. The position in the width direction of the single-sided cardboard sheet D1 may be adjusted by an adjusting device.

  Further, when the positions of the left and right end portions in the width direction of the front liner A with respect to the center in the width direction on the reference travel route of the front liner A are defined in step S45, the amount of glue area deviation is calculated in step S61. The unit 115 is based on the pasting areas of the single-sided corrugated cardboard sheets D1, D2 by the current pasting devices 34, 35 and the pasting devices 34, 35 according to the current position in the width direction of the left and right ends of the current front liner A. The amount of deviation from the glued area of the single-sided cardboard sheets D1, D2 is calculated. In step S62, the second determination unit 116 determines whether or not the shift amount of the glued areas of the single-sided cardboard sheets D1 and D2 is within an allowable range, that is, whether or not it is equal to or less than the second determination value. Here, if it is determined that the shift amount of the glued area of the single-sided corrugated cardboard sheets D1 and D2 is equal to or smaller than the second determination value (Yes), this routine is exited without doing anything. On the other hand, if it is determined (No) that the shift amount of the glued area of the single-sided cardboard sheets D1, D2 is larger than the second judgment value, the glued area adjustment amount calculation unit 117 calculates the calculated one-sided sheet in step S63. An adjustment amount of the gluing area corresponding to the amount of shift of the gluing area with respect to the corrugated cardboard sheets D1, D2, that is, an operation amount of the scraping member 74 is calculated. In step S <b> 64, the control device 105 controls the gluing area adjustment device 91 and operates the scraping member 74.

  As described above, in the cardboard sheet manufacturing apparatus according to the second embodiment, the imaging devices 103 and 104 that detect the positions in the width direction of the single-sided cardboard sheets D1 and D2 are provided, and the control device 105 includes the imaging devices 103 and 104. The width direction position adjusting device 54 is controlled in accordance with the width direction position of the front liner A imaged by the imaging device 101 with respect to the width direction position of the single-sided cardboard sheets D1 and D2 imaged by the above.

  Therefore, since the position in the width direction of the front liner A is adjusted according to the position in the width direction of the front liner A with respect to the current position in the width direction of the single-sided cardboard sheets D1, D2, it is matched with the running state of the single-sided cardboard sheets D1, D2. Thus, the position of the front liner A is adjusted, and the single-sided cardboard sheets D1, D2 and the front liner A can be bonded with high accuracy.

  In the above-described embodiment, the imaging apparatus 101 is a line camera, but a CCD camera, a laser sensor, or the like may be used. Further, although the width direction position adjusting device 54 is configured by the two adjusting rolls 55 and 56, it may be one or three or more, and may be a width direction position adjusting device having other configurations.

  In the above-described embodiment, the corrugating machine 10 manufactures a double-sided cardboard sheet in which the single-sided cardboard sheet D1, the single-sided cardboard sheet D2, and the front liner A are bonded together. However, the single-sided cardboard sheet D2 (D1) It is good also as what manufactures the double-sided cardboard sheet | seat which bonded the front liner A.

10 Corrugating machine (corrugated cardboard sheet manufacturing equipment)
11, 12, 15, 16, 19 Mill roll stand 13, 17 Single facer 14, 18 Bridge 20 Preheater 21 Glue machine 22 Double facer 23 Rotary shear 24 Slitter scorer 25 Cut-off 26 Defective product discharger 27 Stacker 31, 32, 33 , 51 Preheating roll 34, 35 Gluing device 41 Frame 42, 43, 44, 45, 46, 47, 52, 53 Support roll 48, 49, 50 Guide roll 54 Width direction position adjusting device 55, 56 Adjustment roll 71 Glue Tank 72 Gluing roll 73 Doctor roll 74 Scraping member 75 Damping member 76 Rider roll 82 Device frame 85 Guide rail 86 Moving plate 88 Drive motor 90 Support arm 91 Gluing area adjustment device 101, 103, 104 Imaging device (width direction) Directional position detection device)
102, 105 Control device 111, 131 Image processing device 112, 132 Liner width direction deviation amount calculation unit 113 First determination unit 114, 134 Adjustment roll adjustment amount calculation unit 115 Gluing area deviation amount calculation unit 116 Second determination unit 117 Glue Attached area adjustment amount calculation unit 121 Production management device 122 Operating device 123 Display device 124 Storage device 133 Third determination unit A Table liner (first liner)
B1, B2 Center C1, C2 Back liner (second liner)
D1, D2 Single-sided cardboard sheet E, E1, F1 Double-sided cardboard sheet E, E2, F2 Double-sided cardboard sheet

Claims (8)

A single facer for producing a single-sided cardboard sheet by laminating a second liner to a corrugated core;
A gluing device for attaching a glue solution to the core in the single-sided cardboard sheet;
A double facer for producing a double-sided cardboard sheet by bonding a first liner to the core of the single-sided cardboard sheet;
A width direction position adjusting device for adjusting a position of the first liner in the width direction;
A width direction position detection device that detects a position in the width direction of the first liner before being bonded to the core on the downstream side in the conveyance direction of the first liner from the width direction position adjustment device;
A control device for controlling the width direction position adjusting device according to the width direction position of the first liner detected by the width direction position detecting device;
An apparatus for manufacturing a corrugated cardboard sheet.   A preheating device for preheating the one-sided corrugated cardboard sheet and the first liner is provided, and the width direction position adjusting device and the width direction position detecting device are disposed downstream of the preheating device in the conveying direction of the first liner. The cardboard sheet manufacturing apparatus according to claim 1.   The corrugated sheet manufacturing apparatus according to claim 1, wherein the gluing device and the width direction position adjusting device are arranged in the same frame.   The control device controls the width direction position adjusting device according to a width direction position of the first liner detected by the width direction position detection device with respect to a preset reference position of the first liner. An apparatus for producing a corrugated cardboard sheet according to any one of claims 1 to 3.   The width direction position detecting device is capable of detecting a position in the width direction of the single-sided cardboard sheet, and the control device is a position in the width direction with respect to the width direction position of the single-sided cardboard sheet detected by the width-direction position detecting device. 4. The production of a corrugated cardboard sheet according to claim 1, wherein the width direction position adjusting device is controlled according to a width direction position of the first liner detected by a detecting device. 5. apparatus.   The gluing device includes a gluing region adjusting device that adjusts a gluing region that adheres the glue liquid to the core, and the control device detects the first detected by the width direction position detecting device. The corrugated board sheet manufacturing apparatus according to any one of claims 1 to 5, wherein the gluing area adjusting device is controlled according to a position in a width direction of the liner.   The gluing device includes a gluing region adjusting device that adjusts a gluing region that adheres the glue liquid to the core, and the control device detects the first detected by the width direction position detecting device. The corrugated board sheet according to any one of claims 1 to 6, wherein the width direction position adjusting device and the glued region adjusting device are controlled in conjunction with each other in accordance with a width direction position of the liner. Manufacturing equipment.   The control device includes an adjustment position in the running direction in the first liner that is adjusted by the width direction position adjustment device, and an adjustment position in the running direction in the gluing region of the single-faced cardboard sheet that is adjusted by the gluing region adjustment device. 8. The corrugated board sheet manufacturing apparatus according to claim 7, wherein the width direction position adjusting device and the gluing area adjusting device are controlled so as to coincide with each other.

Images