JP7393908B2 - Single facer and corrugated sheet manufacturing equipment and roll parallelism adjustment method - Google Patents

Description

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

A corrugate machine as a corrugated sheet manufacturing device includes a single facer and a double facer. Single facers are made by processing core paper into a corrugated shape and laminating a back liner to form a single-sided corrugated sheet. Double facers are made by bonding a front liner to a single-sided corrugated sheet to form a double-sided corrugated sheet. A continuous double-sided corrugated cardboard sheet produced by the double facer is cut to a predetermined width by a slitter scorer, and then cut to a predetermined length by a cut-off device to produce a corrugated cardboard 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 a preheater and transferred to the nip between the pressure belt and the upper roll. The core paper is heated by a preheater and processed into a wave shape at the meshing portion between the upper roll and the lower roll to form a core. After the core is pasted at the top of the step by a pasting device, it is transferred to the nip section. The back liner and core are bonded together at the nip to form a single-sided corrugated sheet.

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

Japanese Patent Application Publication No. 2018-118390

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

The present disclosure solves the above-mentioned problems, and provides a single facer and a corrugated sheet manufacturing apparatus, as well as a method for adjusting the parallelism of rolls, which improves the workability of adjusting work between gluing rolls and corrugated rolls. With the goal.

The single facer of the present disclosure for achieving the above object is equipped with a pressure belt that is passed around a pair of support rolls, and a gluing roll that applies glue to the top of the corrugated core. In a single facer in which a corrugating roll cassette in which an upper roll and a lower roll are attached to a replacement frame is detachably attached to a main body frame, the axial direction of the gluing roll and the upper roll in the main body frame or the replacement frame is 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 in the axial direction of the gluing roll and the upper roll on the main body frame or the exchange frame. a second positioning block that positions the gluing roll and the upper roll in the arrangement direction; and moving 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. and a block moving device.

Further, the corrugated board sheet manufacturing apparatus of the present disclosure includes the single facer for manufacturing a single-sided corrugated board sheet by bonding a second liner to a corrugated core, and a first liner on the core side of the single-sided corrugated board sheet. and a double facer for manufacturing corrugated cardboard sheets by laminating them together.

In addition, the roll parallelism adjustment method of the present disclosure includes a main body frame equipped with a pressure belt that is passed around a pair of support rolls, and a gluing roll that applies glue to the top of the corrugated core. In contrast, in a single facer in which a corrugating roll cassette with an upper roll and a lower roll attached to an exchange frame is detachably attached, the step of raising the corrugating roll cassette with respect to the main body frame, and the step of raising the corrugating roll cassette with respect to the main body frame. a step of positioning the gluing roll and the upper roll in the arrangement direction when the corrugated roll cassette reaches the assembly position; and a step of adjusting the parallelism between the gluing roll and the upper corrugating roll by changing the relative position with respect to the corrugating roll cassette.

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

FIG. 1 is a schematic diagram showing a corrugate machine as a corrugated sheet manufacturing apparatus. FIG. 2 is a schematic configuration diagram showing a single facer. FIG. 3 is a schematic diagram showing a roll support structure in a single facer. FIG. 4 is a perspective view showing the corrugated roll cassette. FIG. 5 is a perspective view showing the arrangement of positioning blocks in the positioning device. FIG. 6 is a schematic front view showing main parts of the positioning device and the parallelism adjusting device. FIG. 7 is a schematic plan view showing the main parts of the positioning device and the parallelism adjusting device. FIG. 8 is a schematic diagram showing a first modification of the parallelism adjusting device. FIG. 9 is a schematic diagram 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. Note that the present disclosure is not limited to this embodiment, and if there are multiple embodiments, the present disclosure also includes a configuration in which each embodiment is combined. In addition, the components in the embodiments include those that can be easily imagined by those skilled in the art, those that are substantially the same, and those that are in the so-called equivalent range.

[Corrugate machine]
FIG. 1 is a schematic diagram showing a corrugate machine as a corrugated sheet manufacturing apparatus. In the following explanation, the front-rear direction in the conveyance direction of the corrugated cardboard sheet is the X direction, the horizontal direction orthogonal to the front-rear direction (X direction) in the conveyance direction of the corrugated cardboard sheet is the Y direction (the width direction of the corrugated cardboard sheet), and the In the description, a vertical direction (thickness direction of the corrugated cardboard sheet) perpendicular to the front-rear direction (X direction) in the conveyance direction is referred to as the Z direction.

As shown in FIG. 1, a corrugate machine 10 as a corrugated sheet manufacturing device manufactures a single-sided corrugated sheet D by bonding a back liner C to a corrugated core B, and A double-sided corrugated cardboard sheet E is produced by laminating the front liner A on the core B side, and the continuous double-sided corrugated cardboard sheet E is cut into a predetermined length to produce a sheet-like double-sided corrugated cardboard sheet F.

The corrugating machine 10 includes a mill roll stand 11 and a preheater 12 for the center core B, a mill roll stand 13 and a preheater 14 for the back liner C, a single facer 15, a bridge 16, and a mill roll stand 17 for the 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.

In the mill roll stand 11, roll paper in which a core B is wound into a roll is mounted on both sides in the X direction, and a splicer 11a for splicing the paper is provided above the roll paper in the Z direction. When one roll paper runs out, it is spliced to the other roll paper by the splicer 11a, so that the core B can be continuously fed out from the mill roll stand 11 toward the downstream side.

In the mill roll stand 13, roll paper in which a back liner C is wound into a roll is mounted on both sides in the X direction, and a splicer 13a for splicing the paper is provided above the paper in the X direction. When one roll paper runs out, it is spliced onto the other roll paper by the splicer 13a, so that the back liner C can be continuously fed out from the mill roll stand 13 toward the downstream side.

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

The single facer 15 is formed by processing a core B heated by a preheater 12 into a corrugated shape, gluing it to the top of each step, and bonding a back liner C heated by a preheater 14 to form a single-sided corrugated board sheet D. The single facer 15 is provided with a pick-up conveyor 15a diagonally above the downstream side in the conveyance direction. The pick-up conveyor 15a is composed of a pair of endless belts, and conveys the one-sided corrugated cardboard sheet D formed by the single facer 15 to the bridge 16 while holding it therebetween. 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.

On both sides of the mill roll stand 17, roll paper in which the front liner A is wound into a roll is mounted, and a splicer 17a for splicing the paper is provided above the roll paper. When one roll paper runs out, it is spliced onto the other roll paper by the splicer 17a, so that the front liner A can be continuously fed out 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 into which steam is supplied, and conveys the single-sided corrugated sheet D and the front liner A that is continuously fed out from the mill roll stand 17 while being heated by the preheating rolls 33 and 34. By doing so, the single-sided corrugated cardboard sheet D and the front liner A are heated 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 as it passes between the rider roll and the gluing roll, it is glued to the top of each tier of the core B. . 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 an upstream heating section 20A and a downstream cooling section 20B along the traveling line of the single-sided corrugated cardboard sheet D and the front liner A. The single-sided corrugated sheet D glued with the glue machine 19 is carried between the pressure belt 20a and the hot plate 20b in the heating section 20A, and the front liner A is placed on the center core B side of the single-sided corrugated sheet D. They are carried between the pressure belt 20a and the hot plate 20b so as to overlap. After being carried between the pressure belt 20a and the hot plate 20b, the single-sided corrugated cardboard sheet D and the front liner A are conveyed as one body toward the cooling section 20B in a vertically overlapping state. During this transportation, the single-sided corrugated paperboard sheet D and the front liner A are heated while being pressurized, so that they are pasted together to form a continuous double-sided corrugated paperboard sheet E. The double-sided corrugated paperboard sheet E is naturally cooled while being conveyed in the cooling section 20B while being held between the pressure belt 20a and the conveyor belt 20c, and then transferred to the rotary shear 21.

The rotary shear 21 cuts the entire width 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 the wide double-sided corrugated cardboard sheet E along the conveyance direction (X direction) to have a predetermined width, and forms ruled lines extending in the conveyance direction. The slitter scorer 22 includes a first slitter scorer unit 22a and a second slitter scorer unit 22b, which are arranged along the conveying direction of the double-sided corrugated cardboard sheet E and have substantially the same structure. The first slitter scorer unit 22a and the second slitter scorer unit 22b have a plurality of pairs of upper and lower ruled line rolls arranged opposite to each other across the double-sided corrugated cardboard sheet E in the width direction, and It has a plurality of sets of slitter knives disposed on the lower side in the width direction.

The cutoff 23 cuts the double-sided corrugated cardboard sheet E cut in the conveying 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 discharge device 24 discharges the double-sided corrugated cardboard sheet F determined to be a defective product by the defect detection device from the conveyance line. The stacker 25 stacks up good double-sided corrugated cardboard sheets F and discharges them as a product out of the machine.

[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 drive device (not shown). The tension roll 42 is rotatably supported at a predetermined distance from the belt roll 41. The pressure belt 43 is an endless belt, and is wound between the belt roll 41 and the tension roll 42. The upper roll 44 can be driven and rotated by a drive device (not shown), and has a corrugated outer peripheral surface. The upper roll 44 is disposed below the pressure belt 43 in the Z direction between the belt roll 41 and the tension roll 42, and its wavy outer peripheral surface contacts the lower surface of the pressure belt 43 under pressure. Like the upper roll 44, the lower roll 45 has a corrugated 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, after being wound around the guide roll 46, the back liner C is transferred together with the pressure belt 43 guided by the belt roll 41 to the nip portion between the pressure belt 43 and the upper roll 44. On the other hand, the core B is processed into a wave shape at the meshing part between the upper roll 44 and the lower roll 45, and then guided by the upper roll 44 and transferred to the nip part between the pressure belt 43 and the upper roll 44. .

Furthermore, the single facer 15 includes a gluing device 51. The gluing device 51 is arranged near 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 performs gluing by attaching the glue stored in the glue dam 52 to the core B conveyed by the upper roll 44. The meter roll 54 adjusts the amount of glue adhered to the outer circumferential surface of the gluing roll 53 by contacting and rotating synchronously with the outer circumferential surface of the gluing roll 53. The glue scraping blade 55 scrapes off excess glue adhering to the outer circumferential surface of the meter roll 54 by removing it from the gluing roll 53 by contacting the outer circumferential surface of the meter roll 54.

Therefore, the glue stored in the glue dam 52 adheres to the rotating gluing roll 53, and the meter roll 54 adjusts the amount of glue adhered to the outer peripheral surface. The core B, which has been processed into a wave shape at the meshing portion between the upper roll 44 and the lower roll 45, comes into contact with the gluing roll 53 and is glued to the top of each tier. When the glued core B is transferred to the nip between the pressure belt 43 and the upper roll 44, it is bonded to the back liner C to form a single-sided corrugated board sheet D.

Note that the belt roll 41, tension roll 42, upper roll 44, and lower roll 45 are heated by the passage of steam inside them. 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 pressurized at the meshing portion between the upper roll 44 and the lower roll 45 and processed into a wave shape. Further, the core B is heated from this meshing portion until it is overlapped with the back liner C by the pressure belt 43 and the upper roll 44. While being heated, glue is applied to the top of each tier by a gluing roll 53, and the core B is transferred to the nip between the pressure belt 43 and the upper roll 44. Here, the back liner C and the core B are pressed and joined together. When the glue receives a predetermined amount of heat, its adhesive strength increases and solidifies, and the core B and back liner C are bonded together when the glue receives heat and hardens, forming a single-sided corrugated sheet D. Ru.

Further, although not shown, a pressure adjustment device is provided which can adjust the pressure applied to the core B and the back liner C by the upper roll 44 and the pressure belt 43. The pressurizing force adjustment device has a hydraulic cylinder, and the tip of a 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 toward and away from the belt roll 41 using a hydraulic cylinder, and the center core B and back side conveyed between the upper roll 44 and the pressure belt 43 are adjusted. 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 replaceable. A corrugated roll cassette is constructed by rotatably supporting the upper roll 44 and the lower roll 45 on the frame. The corrugated roll cassette is removably attached to the single facer 15. In the single facer 15, it is necessary to form a plurality of types of cores B having different wave shapes. Therefore, there are multiple types of upper rolls 44 and lower rolls 45 depending on the type of core B to be formed. Therefore, a plurality of corrugated roll cassettes are prepared in which the upper roll 44 and the lower roll 45 have different shapes. By attaching a predetermined corrugated 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 diagram showing a roll support structure in a single facer, and FIG. 4 is a perspective view showing a corrugated roll cassette.

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

As shown in FIG. 4, the corrugated roll cassette 70 includes exchange 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 parallel to each other with a predetermined interval. 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, 72A and the lower exchange frames 71B, 72B are connected by a plurality of fixing bolts 74 (see FIG. 3). The lower exchange frames 71B, 72B are connected by two (one in the figure) connecting members 73. The upper roll 44 and the lower roll 45 are arranged between exchange frames 71 and 72. The upper roll 44 is rotatably supported by upper exchange frames 71A and 72A via bearings 75 and 76. The lower roll 45 is rotatably supported by lower exchange frames 71B and 72B via bearings 77 and 78.

As shown in FIGS. 3 and 4, the corrugated roll cassette 70 is removably attached to the main body frames 61 and 62. When the corrugated roll cassette 70 is attached to the main body frames 61, 62, the exchange frames 71, 72 are fixed to the main body frames 61, 62. The exchange frame 71 is fixed to the main body frame 61, and the exchange 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 rotation axes of the upper roll 44 and the lower roll 45 are along the Y direction. Further, the upper roll 44 contacts the gluing roll 53.

The main body frames 61 and 62 have substantially the same configuration, the upper exchange frames 71A and 72A have substantially the same configuration, and the lower exchange frames 71B and 72B have substantially the same configuration. Therefore, only the main body frame 62 and the exchange frame 72 (upper exchange frame 72A, lower exchange frame 72B) will be explained, and the explanation about the main body frame 61 and the exchange frame 71 (upper exchange frame 71A, lower exchange frame 71B) will be omitted.

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

The lower exchange frame 72B has a rectangular shape and is arranged in the attachment opening 63 of the main body frame 62. An opening 81 is formed in the center of the lower exchange frame 72B. The opening 81 has a semicircular shape and is open upward in the Z direction. In the lower roll 45, the bearing 78 is arranged in the opening 81. Two flange portions 78a and 78b of the bearing 78 are fixed to the lower exchange frame 72B with fixing bolts 82. The lower exchange frame 72B has first mounting surfaces 83 and 84 extending in the horizontal direction on both sides of the opening 81 at the upper part in the Z direction. Further, in the upper part of the lower exchange frame 72B in the Z direction, second mounting surfaces 85 and 86 are formed on both sides of the first mounting surfaces 83 and 84 along the horizontal direction. Note that, in the lower exchange frame 72B, a space is ensured between both sides 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 attachment opening 63 of the main body frame 62. The upper exchange frame 72A has an opening 91 formed in 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. Two flange portions 76a and 76b of the bearing 76 are fixed to the upper exchange frame 72A with fixing bolts 92. The upper exchange frame 72A has mounting surfaces 93 and 94 formed along the horizontal direction on both sides of the opening 91 at the lower part in the Z direction. Note that, in the upper exchange frame 72A, a space is ensured between both sides 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 with a plurality of fixing bolts 74. At this time, the mounting surfaces 93 and 94 of the upper exchange frame 72A are in close contact with the first attachment surfaces 83 and 84 of the lower exchange frame 72B.

A positioning device 100 and a parallelism adjustment device 150 are provided between the main body frames 61 and 62 and the corrugated roll cassette 70. The positioning device 100 performs positioning in the X direction and the Y direction between the main body frames 61 and 62 and the replacement frames 71 and 72. The parallelism adjustment device 150 adjusts the parallelism between the gluing roll 53 and the upper corrugated roll 44 in a state where the corrugated roll cassette 70 is attached to the main body frames 61 and 62.

[Positioning device]
FIG. 5 is a perspective view showing the arrangement 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 lower positioning block 112 is fixed to the second mounting surface 85a of the exchange frame 71 (lower exchange frame 71B). The first positioning upper block 111 is provided with a first positioning upper part 113 at the lower part in the Z direction. The first positioning upper part 113 is a triangular recessed part, and the apex has a predetermined length along the Y direction. The first lower positioning block 112 is provided with a first lower positioning part 114 at the upper part in the Z direction. The first positioning lower part 114 is a triangular convex portion, and the apex has a predetermined length along the Y direction. The first positioning upper block 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 upper positioning block 111 and the first lower positioning block 112 perform positioning in the X direction.

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

Therefore, the apex of the first positioning upper block 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 are along the straight line L1 along the Y direction. Moreover, the apex of the second positioning upper block 123 of the second positioning upper block 121 and the apex of the second positioning lower part 124 of the second positioning lower block 122 are along the 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 match, and the main body frame 61, 62 and the exchange frames 71 and 72 are positioned in the X direction.

The third positioning block 103 includes a third upper positioning block 131 and a third lower positioning block 132. The third positioning upper block 131 is fixed to the notch 61b of the main body frame 61. The third lower positioning block 132 is fixed to the second mounting surface 86a of the exchange frame 71 (lower exchange frame 71B). The third positioning upper block 131 is provided with a third positioning upper part 133 at the lower part in the Z direction. The third positioning upper part 133 is a rectangular recessed part and extends in the X direction. The third lower positioning block 132 is provided with a third lower positioning part 134 at the upper part in the Z direction. The third positioning lower part 134 is a rectangular convex portion and extends in the X direction. The third positioning upper block 133 of the third positioning upper block 131 and the third positioning lower part 134 of the third positioning lower block 132 can be wedge-fitted. The third upper positioning block 131 and the third lower positioning block 132 perform positioning in the Y direction.

Therefore, when the third positioning upper block 133 of the third positioning upper block 131 and the third positioning lower part 134 of the third positioning lower block 132 are fitted together, the main body frames 61, 62 and the exchange frames 71, 72 are separated from each other in the Y direction. Positioning is performed with respect to. Note that when the third positioning upper part 133 and the third positioning lower part 134 are fitted together, a slight gap is secured between them in the Y direction.

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

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

As shown in FIGS. 6 and 7, the parallelism adjusting device 150 includes a block moving device 151. As shown in FIG. The block moving device 151 is capable of moving the second positioning block 102 (second lower positioning block 122) in the X direction (the direction in which the gluing roll 53 and the upper roll 44 are arranged).

The block moving device 151 is arranged between the second lower positioning block 122 and the exchange frame 72 (upper exchange frame 72A). By moving the second lower positioning block 122, the parallelism of the gluing roll 53 and the upper roll 44 (see FIG. 3) is adjusted. That is, the block moving device 151 can be adjusted so that the center axis O1 of the gluing roll 53 and the center 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 lower positioning 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 lower positioning 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 movable side wedge member 153 is provided on the second lower positioning block 122 side. The fixed wedge member 152 has an L-shape in plan view, and includes a flat portion 152a and an inclined surface portion 152b (first wedge surface). The plane portion 152a and the inclined surface portion 152b are provided facing in opposite directions. Furthermore, 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 movable wedge member 153 has a rectangular shape in plan view, and includes a flat portion 153a and an inclined surface portion 153b (second wedge surface). The plane portion 153a and the inclined surface portion 153b are provided facing in opposite directions.

The fixed side wedge member 152 has a flat portion 152a in contact with a side surface of the upper exchange frame 72A. The movable wedge member 153 has a plane portion 153 a that contacts the side surface of the second lower positioning block 122 . The inclined surface portion 152b of the stationary wedge member 152 and the inclined surface portion 153b of the movable wedge member 153 are inclined in the same direction and contact each other. The fixed side wedge member 152 is fixed to the upper exchange frame 72A with a fixing bolt 155. The movable wedge member 153 is movable in the Y direction. The wedge member moving member 154 is an adjustment bolt that passes through the flange portion 152c of the stationary wedge member 152, and its tip end is screwed into the movable wedge member 153. Further, the wedge member moving member 154 is provided with lock nuts 156 and 157 on both sides of the flange portion 152c, and a lock nut 158 is provided on the moving side wedge member 153 side.

Therefore, the lock nuts 156 and 157 are loosened, the lock nut 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 moving side wedge member 153 that is screwed thereto moves to one side in the Y direction (upward side in FIG. 7). When the movable wedge member 153 moves to one side in the Y direction, the inclined surface portion 153b of the movable wedge member 153 presses the inclined surface portion 152b of the stationary wedge member 152, and the entire length of the block moving device 151 in the X direction is becomes longer. Then, the block moving device 151 presses the second lower positioning block 122 to one side in the X direction (the left side in FIG. 6), and pushes the upper exchange frame 72A to the other side in the X direction (the right side in FIG. 6). Press to. As a result, the second lower positioning block 122 and the upper exchange frame 72A each move in this pressing direction.

Also, 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 movable wedge member 153 that is screwed thereto moves to the other side in the Y direction (downward side in FIG. 7). When the moving wedge member 153 moves to the other side in the Y direction, the inclined surface portion 153b of the moving wedge member 153 releases the pressing of the inclined surface portion 152b of the stationary wedge member 152, and the entire block moving device 151 in the X direction is released. length becomes shorter. Then, the pressing force exerted by the block moving device 151 on the second lower positioning block 122 and the upper exchange frame 72A decreases. As a result, the second lower positioning block 122 and the upper exchange frame 72A move in the opposite direction to this pressing direction.

As shown in FIGS. 3 and 5, the main body frames 61, 62 and the exchange frames 71, 72 are positioned in the X direction by a first positioning block 101 and a second lower positioning 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 lower positioning block 102.

When the block moving device 151 moves the second lower positioning block 122 and the upper exchange frame 72A in the direction away from each other, the center axis O1 of the gluing roll 53 and the center axis O2 of the upper roll 44 move toward the first positioning block 101 side. As a fulcrum, the second lower positioning block 102 side moves away. On the other hand, when the block moving device 151 moves the second lower positioning block 122 and the upper exchange frame 72A in the direction closer to each other, the center axis O1 of the gluing roll 53 and the center axis O2 of the upper roll 44 are aligned with the first positioning block 101. The second positioning lower block 102 side moves closer to the second positioning lower block 102 side using the side as a fulcrum. That is, by moving the second lower positioning block 122 and the upper exchange frame 72A closer to each other using the block moving device 151, the parallelism between the center axis O1 of the gluing roll 53 and the center axis O2 of the upper roll 44 can be adjusted.

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

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

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

The method for adjusting the parallelism of rolls according to the present embodiment includes a step of raising the corrugated roll cassette 70 relative to the main body frames 61 and 62, and a step when the corrugated roll cassette 70 reaches the assembly position relative to the main body frames 61 and 62. a step of positioning in the X direction (the arrangement direction of the gluing roll 53 and the upper roll 44), and a process of positioning the corrugating roll cassette 70 with the main body frames 61, 62 with the corrugating roll cassette 70 assembled to the main body frames 61, 62. and adjusting the parallelism between the gluing roll 53 and the upper roll 44 by changing the relative positions of the pasting roll 53 and the upper roll 44.

As shown in FIG. 3, when operating the single facer 15, a predetermined corrugated roll cassette 70 is attached to the main body frames 61, 62. At this time, the corrugated roll cassette 70 is mounted on a transport vehicle (not shown) and transported to a position adjacent to the single facer 15. First, the corrugated roll cassette 70 is moved in the axial direction and inserted into the main body frames 61 and 62. Next, the corrugated roll cassette 70 is raised by the lifting device 64. Then, the corrugated 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 exchange frames 71, 72 fit into the lower positioning blocks 112, 122, 132 with respect to the upper positioning blocks 111, 121, 131 on the main body frames 61, 62 side. Therefore, the corrugated 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, 62 and the replacement frames 71, 72 using 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 is adjusted by the parallelism adjusting device 150. Note that the parallelism of the upper roll 44 and the lower roll 45 has been adjusted in advance.

First, by loosening the plurality of fixing bolts 161, the fixation of the second lower positioning block 122 to the replacement frame 72 is released. Next, the block moving device 151 moves the second lower positioning block 122 and the upper exchange frame 72A in a direction in which they are separated from each other. Then, the second lower positioning block 122 moves so that the second lower positioning part 124 presses the second positioning upper part 123 of the second upper positioning block 121 to the left in FIG. 3 . Further, the upper exchange frame 72A moves away from the second lower positioning block 122. Note that the amount of movement of the second lower positioning block 122 and the upper exchange frame 72A is determined by the displacement of the fitting position between the second positioning upper part 123 and the second positioning lower part 124, or the first positioning upper part 113 and the first positioning lower part 114. , a slight gap in the Y direction between the third positioning upper part 133 and the third positioning lower part 134 when they are fitted, the amount of deformation of the upper exchange frame 72A, etc. Secured. By moving the second lower positioning block 122 and the upper exchange frame 72A, the parallelism between the center axis O1 of the gluing roll 53 and the center 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 lower positioning block 122 and the upper exchange frame 72A in a direction in which they approach each other. Then, the second lower positioning block 122 moves so that the second lower positioning part 124 presses the second positioning upper part 123 of the second upper positioning block 121 to the right in FIG. Further, the upper exchange frame 72A moves closer to the second lower positioning block 122. By moving the second lower positioning block 122 and the upper exchange frame 72A, the parallelism between the center axis O1 of the gluing roll 53 and the center 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 to within an appropriate value, the second lower positioning block 122 is fixed to the replacement frame 72 with 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 side of the corrugating roll cassette 70, and even if the corrugating roll cassette 70 is removed from the main body frames 61, 62, the block can be moved. The amount adjusted by device 151 is maintained. That is, when the same corrugating roll cassette 70 is mounted on the main body frames 61 and 62, the positioning device 100 positions the corrugating roll cassette 70 at an appropriate position with respect to the main body frames 61 and 62, so that the gluing roll 53 and the upper corrugating roll 44 The parallelism with is within the appropriate value. Therefore, it is no longer necessary to adjust the parallelism between the gluing roll 53 and the upper roll 44 using the parallelism adjustment device 150 again.

[Modified example of parallelism adjustment device]
FIG. 8 is a schematic diagram showing a first modification of the parallelism adjustment device, and FIG. 9 is a schematic diagram showing a second modification of the parallelism adjustment device.

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

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

The block moving device 171 includes an adjustment bolt 172 and lock nuts 173 and 174. The adjustment bolt 172 has threaded portions 172a and 172b on one side and the other side in the axial direction. Threaded portions 172a and 172b are reverse threaded. The adjustment bolt 172 has a threaded portion 172a screwed into the second lower positioning block 122, and a threaded portion 172b screwed into the upper exchange frame 72A. The lock nut 173 is screwed into the threaded portion 172a, and the lock nut 174 is screwed into the threaded portion 172b.

Therefore, the lock nuts 173 and 174 are loosened, and the adjustment bolt 172 is rotated in one direction. When the adjustment bolt 172 rotates in one direction, the second lower positioning block 122 and the upper exchange frame 72A, to which the screw portions 172a and 172b are screwed together, move in the direction away from each other. Also, the adjustment bolt 172 is rotated in the other direction. When the adjustment bolt 172 rotates in the other direction, the second lower positioning block 122 and the upper exchange frame 72A, into which the threaded portions 172a and 172b are threaded, move in a direction closer to each other.

Note that, as the block moving device 171, a fixing bolt 175 may be provided instead of the lock nuts 173, 174. That is, as shown by the two-dot chain line in FIG. 8, a notch 176 is provided in the lower exchange frame 72B, and the fixing bolt 175 passes through the lower exchange frame 72B from the notch 176, and the tip end is connected to the second positioning lower block 122. to be screwed together.

In the second modification, as shown in FIG. 9, the parallelism adjustment device 180 includes 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 (the direction in which the gluing roll 53 and the upper roll 44 are arranged).

The second positioning block 102 includes a second upper positioning block 121 and a second lower positioning block 122. The second positioning upper block 121 is supported by the notch 62a of the main body frame 62 so as to be movable along the X direction (the direction in which the gluing roll 53 and the upper roll 44 are arranged). The second lower positioning block 122 is placed on the second mounting surface 85b of the exchange frame 72 (upper exchange frame 72A), and is fixed to the upper exchange frame 72A with fixing bolts 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 (see FIG. 3) by moving the second positioning upper block 121. The block moving device 181 is similar to the block moving device 151 of the embodiment described above.

Note that the method for adjusting the parallelism between the gluing roll 53 and the upper roll 44 is the same as that in the embodiment described above, and therefore a description thereof will be omitted.

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

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 degree of parallelism between the central axis O1 of the gluing roll 53 and the central axis O2 of the upper roll 44 varies. Here, by adjusting the direction and amount of movement 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 together, the parallelism between the adjusted upper roll 44 and lower roll 45 does not change. As a result, the working time for adjusting the gluing roll 53 and the upper roll 44 can be shortened, and workability can be improved.

The single facer 15 according to the second aspect has a first positioning block 101 that has a first positioning lower part 114 provided on the exchange frame 71 and wedge-fitted to the first positioning upper part 113 of the main body frame 61. A second positioning lower block 122 is provided as the lower block 112 and the second positioning block 102, and the second positioning lower block 122 is provided on the exchange frame 72 and has a second positioning lower part 124 that is wedge-fitted to the second positioning upper part 123 of the main body frame 62. The moving device 151 is capable of moving the second lower positioning block 122 in the X direction. As a result, by moving the second positioning block 102 provided on the replacement frame 71 in the X direction by the block moving device 151, the parallelism between the center axis O1 of the gluing roll 53 and the center axis O2 of the upper roll 44 is properly adjusted. The value will need to be adjusted. 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 a different type of corrugated roll cassette 70 is attached to the main body frames 61, 62, there is no need to adjust the parallelism between the gluing roll 53 and the upper roll 44 again, and the workability of the adjustment work is improved. be able to.

In the single facer 15 according to the third aspect, the block moving device 151 is arranged between the second lower positioning block 122 and the exchange frame 72. Thereby, it is possible to suppress the increase in size of the device.

In the single facer 15 according to the fourth aspect, the block moving device 151 moves the second lower positioning 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 lower positioning block 122 moved by the block moving device 151 to the exchange frame 72. Thereby, the parallelism between the gluing roll 53 and the upper roll 44 adjusted by the movement of the second lower positioning block 122 by the block moving device 151 can be properly maintained by the fixing bolt 161.

The single facer 15 according to the sixth aspect includes, as a block moving device 151, a fixed side wedge member 152 that is fixed to an exchange frame 72 and has an inclined surface portion (first wedge surface) 152b, and a fixed side wedge member 152 that is movable in the Y direction and is inclined. A movable wedge member 153 having an inclined surface portion (second wedge surface) 153b that contacts the surface portion 152b, and a wedge member moving member 154 that moves the movable wedge member 153 are provided. As a result, the moving force of the movable wedge member 153 in the Y direction is converted into the moving force of the movable wedge member 153 in the X direction via each inclined surface portion 152b, 153b. Therefore, the movable wedge member 153 can be moved in the X direction with a small operating force, and 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 arranged on the other side in the X direction with respect to the Y direction. A third positioning block 103 for positioning is arranged. Thereby, each positioning block 101, 102, 103 can perform positioning of the gluing roll 53 and the upper roll 44 in the X direction and the Y direction, and assembly accuracy can be improved.

A corrugating machine (corrugated sheet manufacturing apparatus) 10 according to an eighth aspect includes a single facer 15 for manufacturing a single-sided corrugated sheet D by bonding a back liner C to a corrugated core B, and a single-sided corrugated sheet D. A double facer 20 is provided for manufacturing a double-sided corrugated cardboard sheet E by laminating a front liner A to the center core B side. Here, the single facer 15 includes the above-described first positioning block 101, second positioning block 102, and block moving device 151. Thereby, with the single facer 15, the work time for adjusting the gluing roll 53 and the upper roll 44 can be shortened, and workability can be improved.

The roll parallelism adjustment method according to the ninth aspect includes a step of raising the corrugated roll cassette 70 relative to the main body frames 61 and 62, and a step in which the corrugated roll cassette 70 reaches the assembly position relative to the main body frames 61 and 62. A process of positioning in the X direction (the arrangement direction of the gluing roll 53 and the upper roll 44) when the corrugated roll cassette 70 is assembled to the main body frames 61, 62 70 to adjust the parallelism between the gluing roll 53 and the upper roll 44. Thereby, even if the parallelism between the gluing roll 53 and the upper roll 44 is adjusted to an appropriate value, the adjusted parallelism between the upper roll 44 and the lower roll 45 does not change. As a result, the working time for adjusting the gluing roll 53 and the upper roll 44 can be shortened, and workability can be improved.

Note that in the embodiment described above, the second lower positioning block 122 of the second positioning block 102 is movable in the X direction with respect to the exchange frame 72, and the block movement between the second lower positioning block 122 and the exchange frame 72 is made movable in the X direction with respect to the exchange frame 72. Although the device 151 is arranged, it is not limited to this configuration. For example, the first lower positioning block 112 of the first positioning block 101 is made movable in the X direction with respect to the exchange frame 71, and the block moving device 151 is disposed between the first lower positioning block 112 and the exchange frame 71. Good too. Further, the block moving device 151 may be arranged for both the first positioning block 101 and the second positioning block 102.

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

Further, in the above-described embodiment, the block moving devices 151 and 181 include a fixed side wedge member 152, a moving side wedge member 153, and a wedge member moving member 154, and the block moving device 171 includes an adjustment bolt. 172 and lock nuts 173, 174, but the configuration is not limited to this. 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, 72 are composed of the upper exchange frames 71A, 72A and the lower exchange frames 71B, 72B, but the exchange frames 71, 72 may be formed as an upper and lower unit.

10 Corrugate machine (corrugated 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 (support roller)
42 Tension roll (support roller)
43 Pressure belt 44 Upper roll 45 Lower roll 51 Gluing device 52 Gluing dam 53 Gluing roll 54 Meter roll 55 Gluing blade 61, 62 Main frame 61a, 61b, 62a, 62b Notch 63 Mounting opening 64 Lifting device 64a Drive rod 65 fixing bolt 70 corrugated roll cassette 71, 72 exchange frame 71A, 72A upper exchange frame 71B, 72B lower exchange frame 73 connecting member 74 fixing bolt 75, 76, 77, 78 bearing 81 opening 82 fixing bolt 83, 84 first installation Surfaces 85, 85a, 85b, 86, 86a, 86b Second mounting surface 91 Opening 92 Fixing bolts 93, 94 Mounting surface 100 Positioning device 101 First positioning block 102 Second positioning block 103 Third positioning block 104 Fourth positioning block 111 First positioning upper block 112 First positioning lower block 113 First positioning upper block 114 First positioning lower block 121 Second positioning upper block 122 Second positioning lower block 123 Second positioning upper block 124 Second positioning lower block 131 Third positioning upper block 132 Third positioning lower block 133 Third positioning upper block 134 Third positioning lower block 141 Fourth positioning upper block 142 Fourth positioning lower block 143 Fourth positioning upper block 144 Fourth positioning lower block 150 Parallelism adjustment device 151 Block moving device 152 Fixed side Wedge member 152a Plane part 152b Slope part 152c Flange part 153 Moving side wedge member 153a Plane part 153b Slope 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 moving device 172 Adjustment bolt 173, 174 Lock nut 175 Fixing bolt 176 Notch 180 Parallelism adjusting device 181 Block moving device 182 Fixing bolt

Claims (9)

The main body frame is equipped with a pressure belt that runs around a pair of support rolls and a gluing roll that applies glue to the top of the corrugated corrugated core, while an upper roll and a lower roll are attached to the replacement frame. In a single facer with a removable corrugated roll cassette,
a positioning device that is provided between the main body frame and the corrugated roll cassette and determines the position of the main body frame and the exchange frame;
a parallelism adjustment device that is provided between the main body frame and the corrugated roll cassette and adjusts the parallelism between the gluing roll and the upper corrugated roll;
has
The positioning device includes:
a first positioning block provided on one side in the axial direction of the gluing roll and the upper roll in the main body frame or the exchange frame to position the gluing roll and the upper roll in the arrangement direction;
a second positioning block that is provided on the other side of the gluing roll and the upper roll in the main body frame or the exchange frame in the axial direction and positions the gluing roll and the upper roll in the arrangement direction;
Equipped with
The parallelism adjusting device includes 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,
The first positioning block has a first lower positioning block provided on the exchange frame and having a first lower positioning part wedge-fitted to the first positioning upper part of the main body frame,
The second positioning block has a second lower positioning block provided on the exchange frame and having a second lower positioning part wedge-fitted to the second upper positioning part of the main body frame,
The block moving device is capable of moving at least one of the first lower positioning block and the second lower positioning block in the arrangement direction.
Single facer. The main body frame is equipped with a pressure belt that runs around a pair of support rolls and a gluing roll that applies glue to the top of the corrugated corrugated core, while an upper roll and a lower roll are attached to the replacement frame. In a single facer with a removable corrugated roll cassette,
a first positioning block provided on one side in the axial direction of the gluing roll and the upper roll in the main body frame or the exchange frame to position the gluing roll and the upper roll in the arrangement direction;
a second positioning block that is provided on the other side of the gluing roll and the upper roll in the main body frame or the exchange frame in the axial direction and positions the gluing roll and the upper roll in the arrangement direction;
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;
has
The first positioning block has a first lower positioning block provided on the exchange frame and having a first lower positioning part wedge-fitted to the first positioning upper part of the main body frame,
The second positioning block has a second lower positioning block provided on the exchange frame and having a second lower positioning part wedge-fitted to the second upper positioning part of the main body frame,
The block moving device is capable of moving at least one of the first lower positioning block and the second lower positioning block in the arrangement direction.
Single facer. The block moving device is disposed between the first lower positioning block or the second lower positioning block and the exchange frame.
The single facer according to claim 1 or claim 2 . The block moving device adjusts the parallelism of the gluing roll and the upper roll by moving the first lower positioning block or the second lower positioning block.
Single facer according to claim 3 . A fixing device is provided for fixing the first lower positioning block or the second lower positioning block moved by the block moving device to the exchange frame.
A single facer according to any one of claims 1 to 4 . The block moving device includes a fixed side wedge member fixed to the exchange frame and having a first wedge surface;
a movable wedge member that is movable in the axial direction of the gluing roll and the upper roll and has a second wedge surface that contacts the first wedge surface;
a wedge member moving member that moves the moving side wedge member;
has,
A single facer according to any one of claims 1 to 5 . The main body frame is equipped with a pressure belt that runs around a pair of support rolls and a gluing roll that applies glue to the top of the corrugated corrugated core, while an upper roll and a lower roll are attached to the replacement frame. In a single facer with a removable corrugated roll cassette,
a first positioning block provided on one side in the axial direction of the gluing roll and the upper roll in the main body frame or the exchange frame to position the gluing roll and the upper roll in the arrangement direction;
a second positioning block that is provided on the other side of the gluing roll and the upper roll in the main body frame or the exchange frame in the axial direction and positions the gluing roll and the upper roll in the arrangement direction;
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;
has
The first positioning block and the second positioning block are arranged on one side in a horizontal direction perpendicular to the axial direction of the upper roll,
A third positioning block that positions the gluing roll and the upper roll in the axial direction is disposed on the other side in the horizontal direction perpendicular to the axial direction of the upper roll.
Single facer. The single facer according to any one of claims 1 to 7 , wherein a single-sided corrugated sheet is manufactured by bonding a second liner to a corrugated core;
a double facer for producing a corrugated sheet by bonding a first liner to the center core side of the single-sided corrugated sheet;
A corrugated sheet manufacturing device comprising: The single facer according to any one of claims 1 to 7 ,
a step of raising the corrugated roll cassette with respect to the main body frame;
a step of positioning the gluing roll and the upper corrugating roll in the arrangement direction when the corrugating roll cassette reaches the assembly position with respect to the main body frame;
adjusting the parallelism between the gluing roll and the upper corrugating roll by changing the relative position of the main body frame and the corrugating roll cassette in a state where the corrugating roll cassette is assembled to the main body frame;
A method for adjusting the parallelism of a roll.

Images