JP2021059106A - Manufacturing apparatus of single facer and corrugated board sheet and method for adjustment of degree of parallelization of rolls - Google Patents

Abstract

To provide a manufacturing apparatus of a single facer and a corrugated board sheet and a method for adjustment of degree of parallelization of rolls, with improved workability in adjustment work of a glue roll and a corrugation roll.SOLUTION: A manufacturing apparatus of a single facer and a corrugated board sheet includes: a first positioning block provided on one side in an axial direction of a glue roll and an upper stage roll in a body frame or a replacement frame and performing positioning toward an arrangement direction of the glue roll and the upper stage roll; a second positioning block provided on the other side in the axial direction of the glue roll and the upper stage roll in the body frame or the replacement frame and performing positioning toward the arrangement direction of the glue roll and the upper stage roll; and a block movement apparatus for moving at least one of the first positioning block and the second positioning block to the arrangement direction of the glue roll and the upper stage roll.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to a single facer for manufacturing a single-sided corrugated board sheet, a corrugated board sheet manufacturing device including the single facer, and a roll parallelism adjusting method for adjusting the parallelism of a step roll.

The corrugated board machine as a corrugated cardboard sheet manufacturing apparatus includes a single facer and a double facer. In the single facer, the core paper is processed into a corrugated shape, and the back liner is attached to form a single-sided corrugated cardboard sheet. In the double facer, a front liner is attached to a single-sided corrugated cardboard sheet to form a double-sided corrugated cardboard sheet. The continuous double-sided corrugated board sheet manufactured by the double facer is cut to a predetermined width by a slitter scorer and cut to a predetermined length by a cutoff device to manufacture a corrugated board sheet.

The single facer has a belt roll, a tension roll, a pressure belt, an upper roll, a lower roll, and a gluing device. The back liner is heated by the preheater and transferred to the nip portion between the pressure belt and the upper roll. The core paper is heated by a preheater and processed into a wavy shape at the meshing portion between the upper roll and the lower roll to form a core. The core is glued to the top of the step by a gluing device and then transferred to the nip. The back liner and the core are bonded together at the nip to form a single-sided corrugated cardboard sheet.

As such a single facer, for example, there is one described in the following cited document 1.

Japanese Unexamined Patent Publication No. 2018-118390

The gluing device has a gluing roll, and the gluing roll is arranged adjacent to the upper roll. The gluing device contacts and glues the gluing roll to the top of the wavy core that is conveyed between the gluing roll and the upper roll. The gluing roll needs to glue the corrugated core step top uniformly in the axial direction. Conventionally, the parallelism between the two is adjusted by adjusting the position of the upper roll with respect to the gluing roll. Therefore, after adjusting the parallelism of the upper roll with respect to the gluing roll, it becomes necessary to adjust the parallelism of the lower roll with respect to the upper roll. As a result, there is a problem that the work of adjusting the parallelism of the upper roll and the lower roll in the single facer becomes complicated and the work time becomes long.

The present disclosure solves the above-mentioned problems, and provides a single facer and corrugated cardboard sheet manufacturing apparatus and a roll parallelism adjusting method for improving the workability of the adjusting work between the gluing roll and the step roll. With the goal.

In order to achieve the above object, the single facer of the present disclosure is equipped with a pressure belt that is hung around a pair of support rolls and a glue roll that applies glue to the stepped top of the corrugated core. In a single facer in which a stage roll cassette in which an upper roll and a lower roll are mounted on a replacement frame can be attached to and detached from the main body frame, the gluing roll and the upper roll in the main body frame or the replacement frame are axially oriented. A first positioning block provided on one side for positioning the gluing roll and the upper roll in the arrangement direction, and a first positioning block provided on the other side of the main body frame or the replacement frame in the axial direction of the gluing roll and the upper roll. The second positioning block for positioning the gluing roll and the upper roll in the arrangement direction, and at least one of the first positioning block and the second positioning block are moved in the arrangement direction of the gluing roll and the upper roll. It has a block moving device and a device for moving the block.

Further, the corrugated cardboard sheet manufacturing apparatus of the present disclosure includes the single facer for manufacturing a single-sided corrugated cardboard sheet by attaching a second liner to a corrugated core, and a first liner on the core side of the single-sided corrugated cardboard sheet. It is equipped with a double facer that manufactures corrugated cardboard sheets by laminating.

Further, the method of adjusting the parallelism of the rolls of the present disclosure is a main body frame in which a pressure belt hung around a pair of support rolls and a gluing roll for applying glue to the stepped top of the corrugated core are mounted. On the other hand, in a single facer in which a step roll cassette in which an upper roll and a lower roll are mounted on a replacement frame can be attached and detached, a step of raising the step roll cassette with respect to the main body frame and a step of raising the step roll cassette with respect to the main body frame. The step of positioning the glue roll and the upper roll in the arrangement direction when the step roll cassette reaches the assembling position, and the main body frame and the main body frame with the step roll cassette assembled to the main body frame. It has a step of adjusting the parallelism between the gluing roll and the upper roll by changing the relative position with the step roll cassette.

According to the single facer and corrugated cardboard sheet manufacturing apparatus and the roll parallelism adjusting method of the present disclosure, it is possible to improve the workability of the adjusting work between the gluing roll and the step roll.

FIG. 1 is a schematic view showing a corrugated machine as a corrugated cardboard sheet manufacturing apparatus. FIG. 2 is a schematic configuration diagram showing a single facer. FIG. 3 is a schematic view showing a roll support structure in a single facer. FIG. 4 is a perspective view showing a stage roll cassette. FIG. 5 is a perspective view showing an arrangement configuration of positioning blocks in the positioning device. FIG. 6 is a schematic front view showing a main part of the positioning device and the parallelism adjusting device. FIG. 7 is a schematic plan view showing a main part of the positioning device and the parallelism adjusting device. FIG. 8 is a schematic view showing a first modification of the parallelism adjusting device. FIG. 9 is a schematic view showing a second modification of the parallelism adjusting device.

Preferred embodiments of the present disclosure will be described in detail below with reference to the drawings. It should be noted that the present disclosure is not limited by this embodiment, and when there are a plurality of embodiments, the present embodiment also includes a combination of the respective embodiments. In addition, the components in the embodiment include those that can be easily assumed by those skilled in the art, those that are substantially the same, that is, those in a so-called equal range.

[Corrugated machine]
FIG. 1 is a schematic view showing a corrugated machine as a corrugated cardboard sheet manufacturing apparatus. In the following description, the front-rear direction in the transport direction of the cardboard sheet is the X direction, the horizontal direction orthogonal to the front-rear direction (X direction) in the transport direction of the cardboard sheet is the Y direction (width direction of the cardboard sheet), and the cardboard sheet. The vertical direction (thickness direction of the cardboard sheet) orthogonal to the front-rear direction (X direction) in the transport direction will be described as the Z direction.

As shown in FIG. 1, the corrugated machine 10 as a corrugated cardboard sheet manufacturing apparatus manufactures a single-sided corrugated cardboard sheet D by bonding a back liner C to a corrugated core B and a single-sided corrugated board sheet D. A front liner A is attached to the core B side to form a double-sided corrugated cardboard sheet E, and a continuous double-sided corrugated cardboard sheet E is cut to a predetermined length to manufacture a sheet-shaped double-sided corrugated cardboard sheet F.

The corrugated machine 10 includes a core B mill roll stand 11 and a preheater 12, a back liner C mill roll stand 13 and a preheater 14, a single facer 15, a bridge 16, a front liner A mill roll stand 17, and a front liner A. It includes a preheater 18, a glue machine 19, a double facer 20, a rotary shear 21, a slitter scorer 22, a cutoff 23, a defective product discharge device 24, and a stacker 25.

The mill roll stand 11 is provided with roll paper on which the core B is wound in a roll shape on both sides in the X direction, and splicers 11a for splicing the paper above the roll paper in the Z direction. When one roll paper is low, the splicer 11a joins the paper to the other roll paper, so that the core B can be continuously fed from the mill roll stand 11 toward the downstream side.

The mill roll stand 13 is provided with roll paper on which the back liner C is wound in a roll shape on both sides in the X direction, and splicers 13a for joining the paper are provided above the roll paper in the X direction. When one roll paper is low, the splicer 13a joins the paper to the other roll paper, so that the back liner C can be continuously fed from the mill roll stand 13 toward the downstream side.

The preheaters 12 and 14 preheat the core B and the back liner C, respectively. The preheaters 12 and 14 have preheating rolls 31 and 32 to which steam is supplied to the inside, and the core B and the back liner C continuously fed out from the mill roll stands 11 and 13 are heated by the preheating rolls 31 and 32. By transporting while transporting, the core B and the back liner C are heated to a predetermined temperature.

In the single facer 15, the core B heated by the preheater 12 is processed into a wavy shape and then glued to the top of each step, and the back liner C heated by the preheater 14 is bonded to form a single-sided corrugated cardboard sheet D. The single facer 15 is provided with a pick-up conveyor 15a diagonally upward on the downstream side in the transport direction. The pick-up conveyor 15a is composed of a pair of endless belts, sandwiches the single-sided corrugated cardboard sheet D formed by the single facer 15, and conveys it to the bridge 16. The bridge 16 temporarily retains the single-sided corrugated cardboard sheet D in order to absorb the speed difference between the single facer 15 and the double facer 20.

The mill roll stand 17 is provided with roll paper on which the front liner A is wound in a roll shape on both sides, and a splicer 17a for splicing the paper is provided above the roll paper. When one roll paper is low, the splicer 17a joins the paper to the other roll paper, so that the front liner A can be continuously fed from the mill roll stand 17 toward the downstream side.

The preheater 18 preheats the single-sided corrugated cardboard sheet D and the front liner A, respectively. The preheater 18 has preheating rolls 33 and 34 to which steam is supplied to the inside, and conveys the front liner A continuously fed from the single-sided corrugated cardboard sheet D and the mill roll stand 17 while being heated by the preheating rolls 33 and 34. By doing so, the temperature of the single-sided corrugated cardboard sheet D and the front liner A is raised to a predetermined temperature.

The glue machine 19 has a gluing device. The single-sided corrugated cardboard sheet D heated by the preheating roll 33 is guided into the glue machine 19 on the way, and is glued to each top of the step of the core B as it passes between the rider roll and the glued roll. .. The single-sided corrugated cardboard sheet D glued by the glue machine 19 is transferred to the double facer 20. Further, the front liner A heated by the preheating roll 34 is also transferred to the double facer 20 through the glue machine 19.

The double facer 20 is divided into a heating section 20A on the upstream side and a cooling section 20B on the downstream side along the traveling line of the single-sided corrugated cardboard sheet D and the front liner A. The single-sided corrugated board sheet D glued by the glue machine 19 is carried in between the pressure belt 20a and the hot plate 20b in the heating section 20A, and the front liner A is moved to the core B side of the single-sided corrugated board sheet D. It is carried between the pressure belt 20a and the hot plate 20b so as to overlap each other. The single-sided corrugated cardboard sheet D and the front liner A are carried in between the pressure belt 20a and the hot plate 20b, and then are integrally transferred to the cooling section 20B in a state of being overlapped vertically. During this transfer, the single-sided corrugated board sheet D and the front liner A are heated while being pressurized so that they are bonded to each other to form a continuous double-sided corrugated cardboard sheet E. The double-sided corrugated cardboard sheet E is naturally cooled when it is transported while being sandwiched between the pressure belt 20a and the transport belt 20c in the cooling section 20B, and is transferred to the rotary shear 21.

The rotary shear 21 cuts or partially cuts the double-sided corrugated cardboard sheet E in the width direction (Y direction) until the bonding becomes stable at the initial stage of operation. The slitter scorer 22 cuts a wide double-sided corrugated cardboard sheet E along the transport direction (X direction) so as to have a predetermined width, and processes a ruled line extending in the transport direction. The slitter scorer 22 is composed of a first slitter scorer unit 22a and a second slitter scorer unit 22b having substantially the same structure arranged along the transport direction of the double-sided corrugated cardboard sheet E. The first slitter scorer unit 22a and the second slitter scorer unit 22b have a plurality of pairs of upper ruled line rolls and lower ruled line rolls arranged opposite to each other with the double-sided corrugated cardboard sheet E in between in the width direction, and the double-sided corrugated cardboard sheet E. It has a plurality of sets of slitter knives arranged on the lower side in the width direction.

The cutoff 23 cuts the double-sided corrugated cardboard sheet E cut in the transport direction by the slitter scorer 22 along the width direction (Y direction) to form a plate-shaped double-sided corrugated cardboard sheet F having a predetermined length. The defective product discharging device 24 discharges the double-sided corrugated cardboard sheet F determined to be a defective product by the defective product detecting device from the transport line. The stacker 25 stacks non-defective double-sided corrugated cardboard sheets F and discharges them to the outside of the machine as a product.

[Single facer]
FIG. 2 is a schematic configuration diagram showing a single facer.

As shown in FIG. 2, the single facer 15 includes a belt roll 41, a tension roll 42, a pressure belt 43, an upper roll 44, and a lower roll 45.

The belt roll 41 can be driven and rotated by a driving device (not shown). The tension roll 42 is rotatably supported with a predetermined interval from the belt roll 41. The pressure belt 43 is an endless belt and is hung between the belt roll 41 and the tension roll 42. The upper roll 44 can be driven and rotated by a driving device (not shown), and the outer peripheral surface is formed in a wavy shape. The upper roll 44 is arranged below the pressure belt 43 in the Z direction between the belt roll 41 and the tension roll 42, and the corrugated outer peripheral surface abuts on the lower surface of the pressure belt 43 in a pressurized state. Similar to the upper roll 44, the lower roll 45 has a wavy outer peripheral surface and meshes with the outer peripheral surface of the upper roll 44 below the upper roll 44 in the Z direction.

Therefore, the back liner C is wound around the guide roll 46 and then transferred to the nip portion between the pressure belt 43 and the upper roll 44 together with the pressure belt 43 guided by the belt roll 41. On the other hand, the core B is processed into a wavy shape at the meshing portion between the upper roll 44 and the lower roll 45, and then guided by the upper roll 44 and transferred to the nip portion between the pressure belt 43 and the upper roll 44. ..

Further, the single facer 15 includes a gluing device 51. The gluing device 51 is arranged in the vicinity of the upper roll 44 in the X direction. The gluing device 51 includes a gluing dam 52, a gluing roll 53, a meter roll 54, and a gluing blade 55.

The glue dam 52 stores a predetermined amount of glue. The gluing roll 53 adheres the glue stored in the glue dam 52 to the core B conveyed by the upper roll 44 to perform gluing. The meter roll 54 contacts the outer peripheral surface of the gluing roll 53 and rotates synchronously to adjust the amount of glue adhering to the outer peripheral surface of the gluing roll 53. By contacting the outer peripheral surface of the meter roll 54, the glue scraping blade 55 is removed from the gluing roll 53 and scrapes off excess glue adhering to the outer peripheral surface of the meter roll 54.

Therefore, the glue stored in the glue dam 52 adheres to the rotating gluing roll 53, and the amount of glue adhering to the outer peripheral surface is adjusted by the meter roll 54. The core B processed into a wavy shape at the meshing portion between the upper roll 44 and the lower roll 45 is glued to the top of each step by coming into contact with the gluing roll 53. When the glued core B is transferred to the nip portion of the pressure belt 43 and the upper roll 44, it is attached to the back liner C to form a single-sided corrugated cardboard sheet D.

The belt roll 41, the tension roll 42, the upper roll 44, and the lower roll 45 are heated by circulating steam inside. Therefore, the back liner C is heated when it comes into contact with the belt roll 41 and the tension roll 42 via the pressure belt 43. The core B is heated when it is pressed by the meshing portion between the upper roll 44 and the lower roll 45 and processed into a wavy shape. Further, the core B is heated from the meshing portion until it is overlapped with the back liner C by the pressure belt 43 and the upper roll 44. While being heated, the core B is coated with glue on the top of each step by the gluing roll 53 and transferred to the nip portion of the pressure belt 43 and the upper roll 44. Here, the back liner C and the core B are pressurized and joined. The glue is solidified by increasing its adhesive strength by receiving a predetermined amount of heat, and the core B and the back liner C are bonded by the glue receiving heat and solidifying to form a single-sided corrugated cardboard sheet D. To.

Further, although not shown, a pressure adjusting device capable of adjusting the pressure of the core B and the back liner C by the upper roll 44 and the pressure belt 43 is provided. The pressurizing adjustment device has a hydraulic cylinder, and the tip end portion of the drive rod is connected to the support shaft of the tension roll 42. Therefore, the tension of the pressure belt 43 is adjusted by moving the tension roll 42 closer to and away from the belt roll 41 by the hydraulic cylinder, and the core B and the back surface are conveyed between the upper roll 44 and the pressure belt 43. The pressing force of the liner C can be adjusted.

In the single facer 15, the upper roll 44 and the lower roll 45 are interchangeable. The upper roll 44 and the lower roll 45 are rotatably supported by the frame to form a stage roll cassette. The stage roll cassette is removable with respect to the single facer 15. The single facer 15 needs to form a plurality of types of cores B having different wave shapes. Therefore, there are a plurality of types of upper rolls 44 and lower rolls 45 depending on the type of core B to be formed. Therefore, a plurality of stage roll cassettes having different shapes of the upper roll 44 and the lower roll 45 are prepared. By attaching a predetermined stage roll cassette 70 to the single facer 15, the single facer 15 can form a single-sided corrugated cardboard sheet D having a predetermined shape.

[Roll support structure in single facer]
FIG. 3 is a schematic view showing a roll support structure in a single facer, and FIG. 4 is a perspective view showing a stage roll cassette.

As shown in FIG. 3, in the single facer 15, main body frames 61 and 62 are installed on one side (driving side) and the other side (operating side) in the Y direction. The belt roll 41, the tension roll 42, the pressure belt 43 (all of which see FIG. 2), the upper roll 44, and the lower roll 45 described above are arranged between the main body frames 61 and 62. The belt roll 41 and the tension roll 42 are rotatably supported by the main body frames 61 and 62. The axis of rotation of the belt roll 41 and the tension roll 42 is along the Y direction. Further, the gluing device 51 is arranged between the main body frames 61 and 62. The gluing roll 53 is rotatably supported by the main body frames 61 and 62. The center of rotation of the gluing roll 53 is along the Y direction.

As shown in FIG. 4, the stage roll cassette 70 includes replacement frames 71 and 72, a connecting member 73, an upper roll 44, and a lower roll 45. The exchange frames 71 and 72 are arranged so as to be parallel to each other at predetermined intervals. The exchange frames 71 and 72 include upper exchange frames 71A and 72A and lower exchange frames 71B and 72B. The upper exchange frames 71A and 72A and the lower exchange frames 71B and 72B are connected by a plurality of fixing bolts 74 (see FIG. 3). The exchange frames 71 and 72 are connected by a connecting member 73 in which the lower exchange frames 71B and 72B are connected by two (one in the figure). The upper roll 44 and the lower roll 45 are arranged between the replacement frames 71 and 72. The upper roll 44 is rotatably supported by the upper exchange frames 71A and 72A via bearings 75 and 76. The lower roll 45 is rotatably supported by the lower replacement frames 71B and 72B via bearings 77 and 78.

As shown in FIGS. 3 and 4, the stage roll cassette 70 is removable from the main body frames 61 and 62. When the step roll cassette 70 is mounted on the main body frames 61 and 62, the replacement frames 71 and 72 are fixed to the main body frames 61 and 62. The replacement frame 71 is fixed to the main body frame 61, and the replacement frame 72 is fixed to the main body frame 62. At this time, the upper roll 44 and the lower roll 45 are arranged between the main body frames 61 and 62. The center of rotation of the upper roll 44 and the lower roll 45 is along the Y direction. Further, the upper roll 44 comes into contact with the gluing roll 53.

The main body frames 61 and 62 have almost the same configuration, the upper exchange frames 71A and 72A have almost the same configuration, and the lower exchange frames 71B and 72B have almost the same configuration. Therefore, only the main body frame 62 and the replacement frame 72 (upper replacement frame 72A, lower replacement frame 72B) will be described, and the description of the main body frame 61 and the replacement frame 71 (upper replacement frame 71A, lower replacement frame 71B) will be omitted.

As shown in FIG. 3, the main body frame 62 is installed on a floor surface (not shown), and a mounting opening 63 is provided. The mounting opening 63 has no rectangular shape, and the step roll cassette 70 can be inserted. The main body frame 62 is provided with two elevating devices 64 below the mounting opening 63 in the Z direction. The two elevating devices 64 are arranged at predetermined intervals in the X direction, and the drive rod 64a can move along the Z direction. The elevating device 64 is, for example, a hydraulic cylinder, but is not limited thereto.

The lower exchange frame 72B has a rectangular shape and is arranged in the mounting opening 63 of the main body frame 62. The lower exchange frame 72B has an opening 81 formed at the center thereof. The opening 81 has a semicircular shape, and the upper portion in the Z direction is opened. In the lower roll 45, the bearing 78 is arranged in the opening 81. In the bearing 78, two flange portions 78a and 78b are fixed to the lower replacement frame 72B by fixing bolts 82. The lower exchange frame 72B is formed with first mounting surfaces 83 and 84 along the horizontal direction on both sides of the opening 81 at the upper portion in the Z direction. Further, in the lower exchange frame 72B, second mounting surfaces 85 and 86 along the horizontal direction are formed on both sides of the first mounting surfaces 83 and 84 at the upper portion in the Z direction. In the lower exchange frame 72B, a space portion is secured between both side portions in the X direction and the main body frame 62.

The upper exchange frame 72A is arranged above the lower exchange frame 72B in the Z direction at the mounting opening 63 of the main body frame 62. The upper exchange frame 72A is formed with an opening 91 at the center. The opening 91 has a circular shape. The upper roll 44 is arranged so that the bearing 76 fits into the opening 91. In the bearing 76, the two flange portions 76a and 76b are fixed to the upper replacement frame 72A by the fixing bolts 92. The upper exchange frame 72A is formed with mounting surfaces 93 and 94 along the horizontal direction on both sides of the opening 91 at the lower portion in the Z direction. In the upper exchange frame 72A, a space portion is secured between both side portions in the X direction and the main body frame 62. The upper exchange frame 72A is fixed to the upper part of the lower exchange frame 72B by a plurality of fixing bolts 74. At this time, the mounting surfaces 93 and 94 of the upper replacement frame 72A are in close contact with the first mounting surfaces 83 and 84 of the lower replacement frame 72B.

A positioning device 100 and a parallelism adjusting device 150 are provided between the main body frames 61 and 62 and the stage roll cassette 70. The positioning device 100 positions the main body frames 61 and 62 and the replacement frames 71 and 72 in the X and Y directions. The parallelism adjusting device 150 adjusts the parallelism between the gluing roll 53 and the upper roll 44 with the step roll cassette 70 mounted on the main body frames 61 and 62.

[Positioning device]
FIG. 5 is a perspective view showing an arrangement configuration of positioning blocks in the positioning device.

As shown in FIGS. 3 and 5, the positioning device 100 includes a first positioning block 101, a second positioning block 102, a third positioning block 103, and a fourth positioning block 104.

The first positioning block 101 has a first positioning upper block 111 and a first positioning lower block 112. The first positioning upper block 111 is fixed to the notch 61a of the main body frame 61. The first positioning lower block 112 is fixed to the second mounting surface 85a of the replacement frame 71 (lower replacement frame 71B). The first positioning upper block 111 is provided with a first positioning upper portion 113 at the lower portion in the Z direction. The first positioning upper portion 113 is a concave portion having a triangular shape, and the apex has a predetermined length along the Y direction. The first positioning lower block 112 is provided with a first positioning lower portion 114 at an upper portion in the Z direction. The first positioning lower portion 114 is a convex portion having a triangular shape, and the apex has a predetermined length along the Y direction. The first positioning upper part 113 of the first positioning upper block 111 and the first positioning lower part 114 of the first positioning lower block 112 can be wedge-fitted. The first positioning upper block 111 and the first positioning lower block 112 perform positioning in the X direction.

The second positioning block 102 has a second positioning upper block 121 and a second positioning lower block 122. The second positioning upper block 121 is fixed to the notch 62a of the main body frame 62. The second positioning lower block 122 is movably supported on the second mounting surface 85b of the replacement frame 72 (lower replacement frame 72B) along the X direction (arrangement direction of the gluing roll 53 and the upper roll 44). The second positioning upper block 121 is provided with a second positioning upper portion 123 at the lower portion in the Z direction. The second positioning upper portion 123 is a concave portion having a triangular shape, and the apex has a predetermined length along the Y direction. The second positioning lower block 122 is provided with a second positioning lower portion 124 at the upper portion in the Z direction. The second positioning lower portion 124 is a convex portion having a triangular shape, and the apex has a predetermined length along the Y direction. The second positioning upper portion 123 of the second positioning upper block 121 and the second positioning lower portion 124 of the second positioning lower block 122 can be wedge-fitted. The second positioning upper block 121 and the second positioning lower block 122 perform positioning in the X direction.

Therefore, the apex of the first positioning upper part 113 of the first positioning upper block 111 and the apex of the first positioning lower part 114 of the first positioning lower block 112 follow a straight line L1 along the Y direction. Further, the apex of the second positioning upper portion 123 of the second positioning upper block 121 and the apex of the second positioning lower portion 124 of the second positioning lower block 122 are along a straight line L2 along the Y direction. When the first positioning upper part 113 and the first positioning lower part 114 are wedge-fitted and the second positioning upper part 123 and the second positioning lower part 124 are wedge-fitted, the straight line L1 and the straight line L2 coincide with each other, and the main body frame 61, The 62 and the replacement frames 71 and 72 are positioned in the X direction.

The third positioning block 103 has a third positioning upper block 131 and a third positioning lower block 132. The third positioning upper block 131 is fixed to the notch 61b of the main body frame 61. The third positioning lower block 132 is fixed to the second mounting surface 86a of the replacement frame 71 (lower replacement frame 71B). The third positioning upper block 131 is provided with a third positioning upper portion 133 at the lower portion in the Z direction. The third positioning upper portion 133 is a concave portion having a quadrangular shape, and is along the X direction. The third positioning lower block 132 is provided with a third positioning lower portion 134 at an upper portion in the Z direction. The third positioning lower portion 134 is a convex portion having a quadrangular shape and is along the X direction. The third positioning upper portion 133 of the third positioning upper block 131 and the third positioning lower portion 134 of the third positioning lower block 132 can be wedge-fitted. The third positioning upper block 131 and the third positioning lower block 132 perform positioning in the Y direction.

Therefore, when the third positioning upper portion 133 of the third positioning upper block 131 and the third positioning lower portion 134 of the third positioning lower block 132 are fitted, the main body frames 61 and 62 and the replacement frames 71 and 72 are in the Y direction. Positioning is done for. When the third positioning upper portion 133 and the third positioning lower portion 134 are fitted, a slight gap is secured between them in the Y direction.

The fourth positioning block 104 has a fourth positioning upper block 141 and a fourth positioning lower block 142. The fourth positioning upper block 141 is fixed to the notch 62b of the main body frame 62. The fourth positioning lower block 142 is fixed to the second mounting surface 86b of the replacement frame 72 (lower replacement frame 72B). The fourth positioning upper block 141 is provided with a fourth positioning upper portion 143 at the lower portion in the Z direction. The fourth positioning upper portion 143 is a flat surface. The fourth positioning lower block 142 is provided with a fourth positioning lower portion 144 at an upper portion in the Z direction. The fourth positioning lower portion 144 is a flat surface. The fourth positioning upper part 143 of the fourth positioning upper block 141 and the fourth positioning lower part 144 of the fourth positioning lower block 142 are in contact with each other. The fourth positioning upper block 141 and the fourth positioning lower block 142 follow the positioning by the positioning blocks 101, 102, 103, respectively.

[Parallelity adjustment device]
FIG. 6 is a front schematic view showing the main parts of the positioning device and the parallelism adjusting device, and FIG. 7 is a plan schematic view showing the main parts of the positioning device and the parallelism adjusting device.

As shown in FIGS. 6 and 7, the parallelism adjusting device 150 includes a block moving device 151. The block moving device 151 can move the second positioning block 102 (second positioning lower block 122) in the X direction (arrangement direction of the gluing roll 53 and the upper roll 44).

The block moving device 151 is arranged between the second positioning lower block 122 and the replacement frame 72 (upper replacement frame 72A). By moving the second positioning lower block 122, the parallelism of the gluing roll 53 and the upper roll 44 (both see FIG. 3) is adjusted. That is, the block moving device 151 can be adjusted so that the central axis O1 of the gluing roll 53 and the central axis O2 of the upper roll 44 are parallel to each other.

The second positioning upper block 121 fits into the notch 62a of the main body frame 62 and is fixed by a plurality of fixing bolts 65. The second positioning lower block 122 is placed on the second mounting surface 85a of the lower exchange frame 72B. The block moving device 151 is arranged between the second positioning lower block 122 and the upper exchange frame 72A.

The block moving device 151 includes a fixed-side wedge member 152, a moving-side wedge member 153, and a wedge member moving member 154. The fixed side wedge member 152 is provided on the upper exchange frame 72A side, and the moving side wedge member 153 is provided on the second positioning lower block 122 side. The fixed-side wedge member 152 has an L-shape in a plan view, and has a flat surface portion 152a and an inclined surface portion 152b (first wedge surface). The flat surface portion 152a and the inclined surface portion 152b are provided so as to face each other in opposite directions. Further, the fixed side wedge member 152 has a flange portion 152c that extends to one side in the Y direction and then bends to one side in the X direction. On the other hand, the moving side wedge member 153 has a rectangular shape in a plan view, and has a flat surface portion 153a and an inclined surface portion 153b (second wedge surface). The flat surface portion 153a and the inclined surface portion 153b are provided so as to face each other in opposite directions.

In the fixed side wedge member 152, the flat surface portion 152a comes into contact with the side surface portion of the upper exchange frame 72A. In the moving side wedge member 153, the flat surface portion 153a comes into contact with the side surface portion of the second positioning lower block 122. The inclined surface portion 152b of the fixed side wedge member 152 and the inclined surface portion 153b of the moving side wedge member 153 are inclined in the same direction and come into contact with each other. Then, the fixing side wedge member 152 is fixed to the upper replacement frame 72A by the fixing bolt 155. The moving side wedge member 153 is movable in the Y direction. The wedge member moving member 154 is an adjusting bolt, penetrates the flange portion 152c of the fixed side wedge member 152, and the tip portion is screwed into the moving side wedge member 153. Further, the wedge member moving member 154 is provided with locknuts 156 and 157 on both sides of the flange portion 152c, and locknuts 158 are provided on the moving side wedge member 153 side.

Therefore, the locknuts 156 and 157 are loosened and the locknut 158 is loosened, and the wedge member moving member 154 is rotated in one direction. When the wedge member moving member 154 rotates in one direction, the wedge member moving member 154 does not move in the axial direction, and the screwing moving side wedge member 153 moves to one side in the Y direction (upper side in FIG. 7). When the moving side wedge member 153 moves to one side in the Y direction, the inclined surface portion 153b of the moving side wedge member 153 presses the inclined surface portion 152b of the fixed side wedge member 152, and the total length of the block moving device 151 in the X direction. Becomes longer. Then, the block moving device 151 presses the second positioning lower block 122 toward one side in the X direction (left side in FIG. 6), and pushes the upper exchange frame 72A to the other side in the X direction (right side in FIG. 6). Press to. As a result, the second positioning lower block 122 and the upper exchange frame 72A move in the pressing direction, respectively.

Further, the wedge member moving member 154 is rotated in the other direction. When the wedge member moving member 154 rotates in the other direction, the wedge member moving member 154 does not move in the axial direction, and the screwing moving side wedge member 153 moves to the other side in the Y direction (lower side in FIG. 7). When the moving side wedge member 153 moves to the other side in the Y direction, the inclined surface portion 153b of the moving side wedge member 153 releases the pressing of the inclined surface portion 152b of the fixed side wedge member 152, and the entire block moving device 151 in the X direction is released. The length becomes shorter. Then, the pressing force on the second positioning lower block 122 and the upper exchange frame 72A by the block moving device 151 is reduced. As a result, the second positioning lower block 122 and the upper exchange frame 72A move in the direction opposite to the pressing direction.

As shown in FIGS. 3 and 5, the main body frames 61 and 62 and the replacement frames 71 and 72 are positioned in the X direction by the first positioning block 101 and the second positioning lower block 102. That is, the parallelism between the gluing roll 53 and the upper roll 44 is set by the first positioning block 101 and the second positioning lower block 102.

When the second positioning lower block 122 and the upper exchange frame 72A are moved in a direction away from each other by the block moving device 151, the central axis O1 of the gluing roll 53 and the central axis O2 of the upper roll 44 move on the first positioning block 101 side. As a fulcrum, the second positioning lower block 102 side fluctuates so as to be separated from each other. On the other hand, when the second positioning lower block 122 and the upper exchange frame 72A are moved in the direction of approaching each other by the block moving device 151, the central axis O1 of the gluing roll 53 and the central axis O2 of the upper roll 44 become the first positioning block 101. With the side as a fulcrum, the second positioning lower block 102 side fluctuates so as to approach. That is, the parallelism between the central axis O1 of the gluing roll 53 and the central axis O2 of the upper roll 44 can be adjusted by moving the second positioning lower block 122 and the upper exchange frame 72A closer to each other by the block moving device 151.

The second positioning lower block 122 is placed on the second mounting surface 85a of the lower replacement frame 72B, and is fixed to the upper replacement frame 72A by a plurality of fixing bolts 161 as fixing devices. The plurality of fixing bolts 161 penetrate the second positioning lower block 122 and the block moving device 151 (fixed side wedge member 152, moving side wedge member 153), and the tip end portion is screwed into the upper replacement frame 72A. In the fixed side wedge member 152 and the moving side wedge member 153, elongated holes through which a plurality of fixing bolts 161 pass are formed along the Y direction.

Therefore, by moving the second positioning lower block 122 by the block moving device 151, the parallelism of the gluing roll 53 and the upper roll 44 (both see FIG. 3) is adjusted. By fixing the second positioning lower block 122 to the upper exchange frame 72A by a plurality of fixing bolts 161 the positions of the gluing roll 53 and the upper roll 44 whose parallelism is adjusted are maintained.

Here, a method of adjusting the parallelism between the gluing roll 53 and the upper roll 44 in the single facer 15 of the present embodiment will be described.

The roll parallelism adjusting method of the present embodiment includes a step of raising the step roll cassette 70 with respect to the main body frames 61 and 62 and when the step roll cassette 70 reaches the assembly position with respect to the main body frames 61 and 62. Positioning in the X direction (arrangement direction of the gluing roll 53 and the upper roll 44), and the main body frames 61 and 62 and the step roll cassette 70 with the step roll cassette 70 assembled to the main body frames 61 and 62. It has a step of adjusting the parallelism between the gluing roll 53 and the upper roll 44 by changing the relative position of the above.

As shown in FIG. 3, when operating the single facer 15, a predetermined stage roll cassette 70 is attached to the main body frames 61 and 62. At this time, the stage roll cassette 70 is mounted on a transport carriage (not shown) and transported to a position adjacent to the single facer 15. Then, first, the stage roll cassette 70 is moved in the axial direction and inserted into the main body frames 61 and 62. Next, the step roll cassette 70 is raised by the elevating device 64. Then, the stage roll cassette 70 is positioned with respect to the main body frames 61 and 62 by the positioning device 100.

That is, as shown in FIG. 5, the replacement frames 71, 72 fit into the positioning lower blocks 112, 122, 132 with respect to the positioning upper blocks 111, 121, 131 on the main body frames 61, 62 side. Therefore, the stage roll cassette 70 is positioned in the X direction and the Y direction with respect to the main body frames 61 and 62 by the positioning device 100.

Here, the parallelism between the gluing roll 53 and the upper roll 44 is adjusted. As shown in FIGS. 3 and 5, the parallelism between the gluing roll 53 and the upper roll 44 is set by positioning the main body frames 61 and 62 and the replacement frames 71 and 72 by the positioning device 100. Here, when the parallelism between the gluing roll 53 and the upper roll 44 is not within the specified value, the parallelism adjusting device 150 adjusts the parallelism. The parallelism of the upper roll 44 and the lower roll 45 has been adjusted in advance.

First, the fixing of the second positioning lower block 122 to the replacement frame 72 is released by loosening the plurality of fixing bolts 161. Next, the block moving device 151 moves the second positioning lower block 122 and the upper exchange frame 72A in a direction in which they are separated from each other. Then, the second positioning lower block 122 moves so that the second positioning lower portion 124 presses the second positioning upper portion 123 of the second positioning upper block 121 to the left in FIG. Further, the upper exchange frame 72A moves so as to be separated from the second positioning lower block 122. The amount of movement of the second positioning lower block 122 and the upper exchange frame 72A is the deviation of the fitting position between the second positioning upper portion 123 and the second positioning lower portion 124, or the first positioning upper portion 113 and the first positioning lower portion 114. From the deviation of the fitting position with, the slight gap with respect to the Y direction secured between the third positioning upper portion 133 and the third positioning lower portion 134, and the amount of deformation of the upper replacement frame 72A. Secured. By moving the second positioning lower block 122 and the upper exchange frame 72A, the parallelism between the central axis O1 of the gluing roll 53 and the central axis O2 of the upper roll 44 is adjusted in one direction. Here, the actual amount of movement is, for example, about 0.1 mm.

Further, the block moving device 151 moves the second positioning lower block 122 and the upper exchange frame 72A in the direction of approaching each other. Then, the second positioning lower block 122 moves so that the second positioning lower portion 124 presses the second positioning upper portion 123 of the second positioning upper block 121 to the right in FIG. Further, the upper exchange frame 72A moves so as to approach the second positioning lower block 122. By moving the second positioning lower block 122 and the upper exchange frame 72A, the parallelism between the central axis O1 of the gluing roll 53 and the central axis O2 of the upper roll 44 is adjusted in the other direction. When the parallelism between the gluing roll 53 and the upper roll 44 is adjusted within an appropriate value, the second positioning lower block 122 is fixed to the replacement frame 72 by a plurality of fixing bolts 161.

In this way, the parallelism between the gluing roll 53 and the upper roll 44 is adjusted by the parallelism adjusting device 150 provided on the step roll cassette 70 side, and even if the step roll cassette 70 is removed from the main body frames 61 and 62, the block moves. The amount adjusted by the device 151 is maintained. That is, when the same stage roll cassette 70 is mounted on the main body frames 61 and 62, the stage roll cassette 70 is positioned at an appropriate position with respect to the main body frames 61 and 62 by the positioning device 100, so that the gluing roll 53 and the upper stage roll 44 The parallelism with is within the appropriate value. Therefore, it is not necessary to adjust the parallelism between the gluing roll 53 and the upper roll 44 again by the parallelism adjusting device 150.

[Modification example of parallelism adjusting device]
FIG. 8 is a schematic view showing a first modification of the parallelism adjusting device, and FIG. 9 is a schematic view showing a second modification of the parallelism adjusting device.

In the first modification, as shown in FIG. 8, the parallelism adjusting device 170 has a block moving device 171. The block moving device 171 can move the second positioning block 102 (second positioning lower block 122) in the X direction (arrangement direction of the gluing roll 53 and the upper roll 44).

The block moving device 171 is arranged between the second positioning lower block 122 and the replacement frame 72 (upper replacement frame 72A). The block moving device 171 adjusts the parallelism of the gluing roll 53 and the upper roll 44 (both see FIG. 3) by moving the second positioning lower block 122.

The block moving device 171 has an adjusting bolt 172 and locknuts 173 and 174. The adjusting bolt 172 has threaded portions 172a and 172b on both sides on one side and the other side in the axial direction. The threaded portions 172a and 172b are reverse threads. In the adjusting bolt 172, the screw portion 172a is screwed into the second positioning lower block 122, and the screw portion 172b is screwed into the upper replacement frame 72A. Then, the locknut 173 is screwed into the screw portion 172a, and the locknut 174 is screwed into the screw portion 172b.

Therefore, the locknuts 173 and 174 are loosened, and the adjusting bolt 172 is rotated in one direction. When the adjusting bolt 172 rotates in one direction, the second positioning lower block 122 into which the threaded portions 172a and 172b are screwed and the upper replacement frame 72A move in a direction in which they are separated from each other. Also, the adjusting bolt 172 is rotated in the other direction. When the adjusting bolt 172 rotates in the other direction, the second positioning lower block 122 into which the threaded portions 172a and 172b are screwed and the upper replacement frame 72A move in the direction of approaching each other.

As the block moving device 171, a fixing bolt 175 may be provided instead of the locknuts 173 and 174. That is, as shown by the alternate long and short dash line in FIG. 8, a notch 176 is provided in the lower exchange frame 72B, the fixing bolt 175 penetrates the lower exchange frame 72B from the notch 176, and the tip portion is the second positioning lower block 122. Screw in.

In the second modification, as shown in FIG. 9, the parallelism adjusting device 180 has a block moving device 181. The block moving device 181 can move the second positioning block 102 (second positioning upper block 121) in the X direction (arrangement direction of the gluing roll 53 and the upper roll 44).

The second positioning block 102 has a second positioning upper block 121 and a second positioning lower block 122. The second positioning upper block 121 is movably supported by the notch 62a of the main body frame 62 along the X direction (arrangement direction of the gluing roll 53 and the upper roll 44). The second positioning lower block 122 is placed on the second mounting surface 85b of the replacement frame 72 (upper replacement frame 72A) and is fixed to the upper replacement frame 72A by the fixing bolt 182.

The block moving device 181 is arranged between the second positioning upper block 121 and the main body frame 62. The block moving device 181 adjusts the parallelism of the gluing roll 53 and the upper roll 44 (both see FIG. 3) by moving the second positioning upper block 121. The block moving device 181 is the same as the block moving device 151 of the above-described embodiment.

Since the method of adjusting the parallelism between the gluing roll 53 and the upper roll 44 is the same as that of the above-described embodiment, the description thereof will be omitted.

[Action and effect of this embodiment]
The single facer 15 according to the first aspect is provided on one side of the gluing roll 53 and the upper roll 44 in the axial direction in the replacement frame 71 and is positioned in the X direction (arrangement direction of the gluing roll 53 and the upper roll 44). The first positioning block 101 to be performed, the second positioning block 102 provided on the other side in the axial direction of the gluing roll 53 and the upper roll 44 in the replacement frame 72 to perform positioning in the X direction, and the second positioning block 102 are placed in the X direction. It has a block moving device 151 that moves to.

In the single facer 15 according to the first aspect, when the second positioning block 102 is moved in the X direction by the block moving device 151, the second positioning block 102 moves in the X direction with respect to the first positioning block 101. That is, the parallelism between the central axis O1 of the gluing roll 53 and the central axis O2 of the upper roll 44 fluctuates. Here, by adjusting the moving direction and the moving amount of the second positioning block 102 by the block moving device 151, the parallelism between the central axis O1 of the gluing roll 53 and the central axis O2 of the upper roll 44 is adjusted to an appropriate value. be able to. At this time, since the upper roll 44 and the lower roll 45 move integrally, the parallelism between the adjusted upper roll 44 and the lower roll 45 does not change. As a result, the working time of the adjusting work between the gluing roll 53 and the upper roll 44 can be shortened, and the workability can be improved.

The single facer 15 according to the second aspect has a first positioning lower portion 114 as a first positioning block 101, which is provided on the replacement frame 71 and wedge-fits to the first positioning upper portion 113 of the main body frame 61. A lower block 112 and a second positioning lower block 122 having a second positioning lower block 124 provided on the replacement frame 72 and wedge-fitted to the second positioning upper portion 123 of the main body frame 62 as the second positioning block 102 are provided. The moving device 151 can move the second positioning lower block 122 in the X direction. As a result, the second positioning block 102 provided on the replacement frame 71 is moved in the X direction by the block moving device 151, so that the parallelism between the central axis O1 of the gluing roll 53 and the central axis O2 of the upper roll 44 is appropriate. It will be adjusted to the value. That is, the position (adjustment amount) of the central axis O1 of the gluing roll 53 does not change, but the position of the central axis O2 of the upper roll 44 is changed to adjust the parallelism. Therefore, even if different types of step roll cassettes 70 are mounted on the main body frames 61 and 62, it is not necessary to adjust the parallelism between the gluing roll 53 and the upper roll 44 again, and the workability of the adjusting work is improved. be able to.

The single facer 15 according to the third aspect arranges the block moving device 151 between the second positioning lower block 122 and the replacement frame 72. As a result, it is possible to suppress an increase in the size of the device.

In the single facer 15 according to the fourth aspect, the block moving device 151 moves the second positioning lower block 122 to adjust the parallelism between the gluing roll 53 and the upper roll 44. Thereby, the position of the central axis O2 of the upper roll 44 can be easily changed without changing the position of the central axis O1 of the gluing roll 53.

The single facer 15 according to the fifth aspect is provided with a fixing bolt 161 as a fixing device for fixing the second positioning lower block 122 moved by the block moving device 151 to the replacement frame 72. As a result, the parallelism between the gluing roll 53 and the upper roll 44 adjusted by the movement of the second positioning lower block 122 by the block moving device 151 can be appropriately maintained by the fixing bolt 161.

The single facer 15 according to the sixth aspect has a fixed side wedge member 152 fixed to the replacement frame 72 and having an inclined surface portion (first wedge surface) 152b as a block moving device 151, and is movable and inclined in the Y direction. A moving side wedge member 153 having an inclined surface portion (second wedge surface) 153b in contact with the surface portion 152b and a wedge member moving member 154 that moves the moving side wedge member 153 are provided. As a result, the moving force of the moving side wedge member 153 in the Y direction is converted into the moving force of the moving side wedge member 153 in the X direction via the inclined surface portions 152b and 153b. Therefore, the moving side wedge member 153 can be moved in the X direction with a small operating force, and the operability can be improved.

In the single facer 15 according to the seventh aspect, the first positioning block 101 and the second positioning block 102 are arranged on one side in the X direction, and the gluing roll 53 and the upper roll 44 are on the other side in the X direction with respect to the Y direction. The third positioning block 103 for positioning is arranged. As a result, the positioning blocks 101, 102, and 103 can position the gluing roll 53 and the upper roll 44 in the X and Y directions, and the assembly accuracy can be improved.

The corrugated machine (corrugated cardboard sheet manufacturing apparatus) 10 according to the eighth aspect includes a single facer 15 for manufacturing a single-sided corrugated cardboard sheet D by bonding a back liner C to a corrugated core B and a single-sided corrugated cardboard sheet D. A double facer 20 for manufacturing a double-sided corrugated cardboard sheet E by attaching a front liner A to the core B side of the above is provided. Here, the single facer 15 has the above-mentioned first positioning block 101, a second positioning block 102, and a block moving device 151. As a result, in the single facer 15, the working time of the adjusting work between the gluing roll 53 and the upper roll 44 can be shortened, and the workability can be improved.

The roll parallelism adjusting method according to the ninth aspect includes a step of raising the step roll cassette 70 with respect to the main body frames 61 and 62 and the step roll cassette 70 reaching the assembly position with respect to the main body frames 61 and 62. When this is done, the process of positioning in the X direction (arrangement direction of the gluing roll 53 and the upper roll 44) and the main body frames 61 and 62 and the step roll cassette with the step roll cassette 70 assembled to the main body frames 61 and 62. It has a step of adjusting the parallelism between the gluing roll 53 and the upper roll 44 by changing the relative position with respect to 70. As a result, even if the parallelism between the gluing roll 53 and the upper roll 44 is adjusted to an appropriate value, the parallelism between the adjusted upper roll 44 and the lower roll 45 does not change. As a result, the working time of the adjusting work between the gluing roll 53 and the upper roll 44 can be shortened, and the workability can be improved.

In the above-described embodiment, the second positioning lower block 122 of the second positioning block 102 can be moved in the X direction with respect to the replacement frame 72, and the block can be moved between the second positioning lower block 122 and the replacement frame 72. Although the device 151 is arranged, the present invention is not limited to this configuration. For example, the first positioning lower block 112 of the first positioning block 101 can be moved in the X direction with respect to the replacement frame 71, and the block moving device 151 is arranged between the first positioning lower block 112 and the replacement frame 71. May be good. Further, the block moving device 151 may be arranged for both the first positioning block 101 and the second positioning block 102.

Further, in the above-described embodiment, the first positioning upper block 111 and the first positioning lower block 112 can be wedge-fitted, and the second positioning upper block 121 and the second positioning lower block 122 can be wedge-fitted. .. Here, the shape of the wedge fitting is a fitting of a triangular convex portion and a triangular concave portion, but the shape is not limited to this shape. For example, the shape of the wedge fitting may be a fitting of a semicircular convex portion and a triangular concave portion, or a fitting of a semicircular convex portion and a semicircular concave portion.

Further, in the above-described embodiment, the block moving device 151,181 may have a fixed side wedge member 152, a moving side wedge member 153, and a wedge member moving member 154, or the block moving device 171 may be an adjusting bolt. It is assumed that the 172 and the locknuts 173 and 174 are provided, but the present invention is not limited to this configuration. For example, a spacer or a shim may be used as the block moving device.

Further, in the above-described embodiment, the exchange frames 71 and 72 are composed of the upper exchange frames 71A and 72A and the lower exchange frames 71B and 72B, but the upper and lower exchange frames 71 and 72 may be used.

10 Corrugated machine (corrugated cardboard sheet manufacturing equipment)
11 Mill roll stand 12 Preheater 13 Mill roll stand 14 Preheater 15 Single facer 16 Bridge 17 Mill roll stand 18 Preheater 19 Glue machine 20 Double facer 21 Rotary shear 22 Slitter scorer 23 Cutoff 24 Defective product discharge device 25 Stacker 41 Belt roll roller)
42 Tension roll (support roller)
43 Pressurized belt 44 Upper roll 45 Lower roll 51 Gluing device 52 Glue dam 53 Gluing roll 54 Meter roll 55 Gluing blade 61, 62 Body frame 61a, 61b, 62a, 62b Notch 63 Mounting opening 64 Elevating device 64a Drive rod 65 Fixing bolt 70-stage roll cassette 71,72 Replacement frame 71A, 72A Upper replacement frame 71B, 72B Lower replacement frame 73 Connecting member 74 Fixing bolt 75,76,77,78 Bearing 81 Opening 82 Fixing bolt 83,84 First mounting Surfaces 85, 85a, 85b, 86, 86a, 86b Second mounting surface 91 Opening 92 Fixing bolt 93, 94 Mounting surface 100 Positioning device 101 First positioning block 102 Second positioning block 103 Third positioning block 104 Fourth positioning block 111 1st positioning upper block 112 1st positioning lower block 113 1st positioning upper part 114 1st positioning lower part 121 2nd positioning upper block 122 2nd positioning lower block 123 2nd positioning upper part 124 2nd positioning lower part 131 3rd positioning upper block 132 3rd positioning lower block 133 3rd positioning upper part 134 3rd positioning lower part 141 4th positioning upper block 142 4th positioning lower block 143 4th positioning lower part 144 4th positioning lower part 150 Parallelism adjusting device 151 Block moving device 152 Fixed side Wedge member 152a Flat part 152b Inclined surface part 152c Flange part 153 Moving side wedge member 153a Flat part 153b Inclined surface part 154 Wedge member Moving member 155 Fixing bolt 156, 157, 158 Lock nut 161 Fixing bolt (fixing device)
170 Parallelism adjustment device 171 Block movement device 172 Adjustment bolt 173, 174 Locknut 175 Fixing bolt 176 Notch 180 Parallelity adjustment device 181 Block movement device 182 Fixing bolt

Claims (9)

For the main body frame, which is equipped with a pressure belt that is hung around a pair of support rolls and a gluing roll that applies glue to the top of the corrugated core, the upper roll and lower roll are attached to the replacement frame. In a single facer with a removable step roll cassette
A first positioning block provided on one side of the main body frame or the replacement frame in the axial direction of the gluing roll and the upper roll to perform positioning with respect to the arrangement direction of the gluing roll and the upper roll.
A second positioning block provided on the other side of the main body frame or the replacement frame in the axial direction of the gluing roll and the upper roll to perform positioning with respect to the arrangement direction of the gluing roll and the upper roll.
A block moving device that moves at least one of the first positioning block and the second positioning block in the arrangement direction of the gluing roll and the upper roll.
Single facer with. The first positioning block has a first positioning lower block provided on the replacement frame and having a first positioning lower portion that is wedge-fitted to the first positioning upper portion of the main body frame.
The second positioning block has a second positioning lower block provided on the replacement frame and having a second positioning lower portion that is wedge-fitted to the second positioning upper portion of the main body frame.
The block moving device can move at least one of the first positioning lower block and the second positioning lower block in the array direction.
The single facer according to claim 1. The block moving device is arranged between the first positioning lower block or the second positioning lower block and the replacement frame.
The single facer according to claim 2. The block moving device adjusts the parallelism between the gluing roll and the upper roll by moving the first positioning lower block or the second positioning lower block.
The single facer according to claim 3. A fixing device for fixing the first positioning lower block or the second positioning lower block moved by the block moving device to the replacement frame is provided.
The single facer according to any one of claims 2 to 4. The block moving device includes a fixed side wedge member fixed to the exchange frame and having a first wedge surface.
A moving side wedge member having a second wedge surface that is movable in the axial direction of the gluing roll and the upper roll and is in contact with the first wedge surface.
A wedge member moving member that moves the moving side wedge member,
Have,
The single facer according to any one of claims 2 to 5. The first positioning block and the second positioning block are arranged on one side in the horizontal direction orthogonal to the axial direction of the upper roll.
The gluing roll and a third positioning block for positioning the upper roll in the axial direction are arranged on the other side in the horizontal direction orthogonal to the axial direction of the upper roll.
The single facer according to any one of claims 1 to 6. The single facer according to any one of claims 1 to 7, wherein a second liner is attached to a corrugated core to manufacture a single-sided corrugated cardboard sheet.
A double facer for manufacturing a corrugated cardboard sheet by attaching a first liner to the core side of the single-sided corrugated cardboard sheet, and
A corrugated board sheet manufacturing device. For the main body frame, which is equipped with a pressure belt that is hung around a pair of support rolls and a gluing roll that applies glue to the top of the corrugated core, the upper roll and lower roll are attached to the replacement frame. In a single facer with a removable step roll cassette
The step of raising the stage roll cassette with respect to the main body frame and
A step of positioning the glued roll and the upper roll in the arrangement direction when the step roll cassette reaches the assembly position with respect to the main body frame.
A step of adjusting the parallelism between the gluing roll and the upper roll by changing the relative position between the main frame and the step roll cassette in a state where the step roll cassette is assembled to the main body frame.
A method of adjusting the parallelism of a roll having.

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