JP4609809B2 - Folder gluer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a folder gluer that is a folding device provided in a box making machine and folds a cardboard sheet into a box.
[0002]
[Prior art]
The box making machine is equipped with a folder folding device called folder gluer. The prior art of this folder gluer will be described with reference to FIG.
FIG. 3 is a perspective view for explaining the outline of the folder gluer. As shown in FIG. 3, the corrugated cardboard sheet 1 is processed with a ruled line C and a slot S by an upstream slotter creaser (not shown), and is folded by the folder gluer. It becomes a box (cardboard box). In FIG. 3, ruled lines that are bent by folder gluer are indicated by broken lines C1 and C2.
[0003]
The folder gluer is provided with left and right upper frames 2 and 2 along the sheet traveling direction, and pulleys 3 are provided at the inlet and the outlet of the upper frames 2 and 2 (the outlet side is not shown). ) A conveyor belt 4 is hung on the pulley 3 at the inlet and the pulley 3 at the outlet. Below the left and right conveyor belts 4 are also provided lower frames 5 and 5 on the left and right sides, and each conveyor belt 4 runs on the upper surface of the corresponding lower frame 5.
[0004]
The cardboard sheet 1 is fed between the conveyor belt 4 and the lower frame 5, held by the conveyor belt 4 by the frictional force of the conveyor belt 4, and slid on the upper surface of the lower frame 5. The lower frame 5 is located on the inner side (closer to the center of the machine) than the ruled lines C1 and C2 to be bent. A folding ruler 6 supported by the lower frame 5 is provided along the travel path of the cardboard sheet 1. On the outside of the travel path of the cardboard sheet 1, a folding bar 7 is provided along the travel path.
[0005]
In the course of traveling, the cardboard sheet 1 is pressed and folded by the folding bar 7 while the folding position is accurately regulated by the tip regulating portion (hereinafter referred to as “edge”) of the folding ruler 6. When the cardboard sheet 1 travels to the downstream part and the folding angle becomes close to 180 °, it is further folded by the folding belt 8. After that, the edges of the left and right panels are glued to complete the box.
[0006]
However, when the edge position of the folding ruler 6 is inappropriate, as shown in FIGS. 6A and 6B, the gap G between the edges of the boxed cardboard box 1A varies. May cause poor box accuracy.
In the conventional folder gluer, the folding ruler 6 is fixedly attached to the lower frame. Of course, both the entrance side and the exit side are provided at positions that can accommodate as many sheets as possible, but the folding ruler itself cannot be adjusted independently, and if it is adjusted, the entire frame, that is, the entire ruler is parallel. They could only move and expand or contract.
[0007]
It is difficult to reliably prevent the above-mentioned defects in box accuracy by obtaining high folding accuracy only by translating the entire ruler, especially for corrugated sheets with a wide range of flute configurations and base paper configurations. Leverage of leverage is significant.
In addition, as a technique for preventing a defect in box accuracy due to folder gluer, Patent Document 1 discloses a folding provided in a folder gluer for folding a corrugated cardboard sheet in a pair corresponding to the folding ruler 6. A technology is proposed to adjust the position of one of the bars in the machine width direction with respect to the other so that the left and right folding bars are accurately parallel and guide the corrugated sheet correctly along the ruled lines attached with the creaser. Has been.
[0008]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-121624 [0009]
[Problems to be solved by the invention]
By the way, the appropriate position of the edge 6a of the folding ruler 6 will be examined. 4 is a schematic cross-sectional view of the main part of the folder gluer. (A), (b), and (c) are views of arrows XX, YY, and ZZ in FIG. Corresponds to the cross section.
[0010]
FIG. 4A is a cross-sectional view of the folder gluer at the folding start position. As shown in FIG. 4A, a tip regulating portion (hereinafter referred to as “edge”) 6a of the folding ruler 6 is provided directly below the ruled lines C1 and C2. It is appropriate. Then, the cardboard sheet is accurately bent from the ruled line portion by being regulated by this edge.
FIG. 4B is a cross-sectional view of the folder gluer showing the folded state of the corrugated cardboard sheet 1 at a position where it is folded at about 90 °. As shown in FIG. The proper position of the edge 6a of the folding ruler 6 is closer to the inside when the folding is advanced than when the folded portion is referred to as “panel”.
[0011]
FIGS. 5A to 5D are enlarged views showing the state of the bent portion of the corrugated cardboard sheet, and the appropriate position of the edge 6a of the folding ruler 6 will be described with reference to FIG.
FIG. 5A shows a state when the panel is not yet folded, and the ruled line position P on the upper surface (outside of the box when folded) and the ruled line position on the lower surface (inside of the box when folded) of the cardboard sheet 1. Q is located on a virtual plane VP perpendicular to the surface of the cardboard sheet 1, and the edge 6a of the folding ruler 6 is also directly below these ruled line positions P and Q (that is, a virtual plane VP including the ruled line positions P and Q). It is clear that this is desirable.
[0012]
However, as shown in FIG. 5B, for example, when the state of the folded portion when the panel is folded by about 90 ° is seen, the upper liner of the corrugated cardboard sheet 1 does not extend, so that the ruled line position P on the upper surface is flat. The inner ruled line position Q is tilted by about 45 ° with respect to the upper ruled line position P. I will stop inside.
[0013]
Furthermore, since the inner liner is compressed and the abdomen R in the vicinity of the inner ruled line Q swells, it is desirable that the edge 6a of the folding ruler 6 be closer to the inner side than Q. The amount of edge shift is indicated by reference numeral D1 in FIGS. 4B and 5B. When the folding is further advanced, it is desirable that the edge 6a is located further inside as shown in FIG. 4 (c). The further shift amount (increase of the shift amount) of the edge 6a at this time is indicated by a symbol D2 in FIG.
[0014]
FIGS. 5C and 5D are diagrams showing how the folding ruler 6 is bent when the edge position is inappropriate, and FIG. 5C is a diagram when the folding ruler 6 is too inside. 5 (d) shows a case where the ruler 6 goes out to the outside. In either case, the corrugated cardboard sheet 1 does not fold correctly and symmetrically from the position of the ruled line, and the gap G between the edges of the panel fluctuates as shown in FIGS. It will cause defects.
[0015]
Thus, the edge position of the folding ruler 6 has an appropriate position according to the folding angle of the panel. This appropriate position is not only the folding angle, but also varies depending on the thickness and rigidity of the sheet, that is, the flute configuration, the basis weight and grade of the base paper to be configured, and the like.
Focusing on these points, as the panel of the cardboard sheet is folded, the position of the ruled line on the inner surface side of the folded portion gradually moves inward (inner side in the apparatus width direction). In addition, the edge position of the folding ruler 6 needs to be appropriately laterally inclined so as to gradually approach the inner side (the inner side in the apparatus width direction) as it goes downstream in the moving direction of the cardboard sheet. In particular, for a corrugated cardboard sheet having a wide flute configuration or a base paper configuration, it is important to adjust the lateral inclination of the edge position of the folding ruler 6.
[0016]
However, the technique disclosed in Patent Document 1 does not have a technical idea of gradually moving the folding bar (folding ruler) position to the inside, and simply adjusts the position so that the left and right folding bars (folding ruler) are in parallel with each other. Thus, the above problem cannot be solved at all.
[0017]
The present invention has been devised in view of such problems, and an object of the present invention is to provide a folder gluer in which a high folding accuracy of a cardboard sheet can be obtained easily and reliably.
[0018]
[Means for Solving the Problems]
In order to achieve the above goal, the folder gluer of the present invention is a folder gluer that guides the inside of the folding part (cardboard sheet panel) to a pair of folding rulers while driving the cardboard sheet and folds it into a box. The positions of the left and right folding ruler corrugated sheet guiding edges correspond to the fact that the position of the ruled line on the inner side of the folded portion of the corrugated sheet gradually moves inward during the process of folding the corrugated sheet. Are arranged so as to gradually move inward in the apparatus width direction, and fine adjustment of the lateral inclination state of the edge is performed by moving the main parts of the pair of left and right folding rulers in the apparatus width direction. An adjustment mechanism is provided (claim 1).
[0019]
When folding a cardboard sheet, it will be guided by the cardboard sheet guide edge of the folding ruler along the ruled line inside the folded part of the cardboard sheet, but the ruled line inside the folded part is the process of folding the cardboard sheet Then, it is gradually displaced inward in the apparatus width direction. In this folder gluer, the edge position is laterally inclined so that it gradually moves to the inside in the apparatus width direction in the process of folding the cardboard sheet. Displacement can be accommodated, and the edge can be aligned with the ruled line inside the folded portion. Although the displacement of the ruled line position is subtle, the horizontal tilt state of the edge can be finely adjusted by the adjustment mechanism, so that the edge can be accurately aligned with the ruled line inside the folded portion.
[0020]
The pair of left and right folding ruler, both are divided into a plurality of portions ruler sheet running direction, one of a plurality of portions ruler above, that are configured to be movable main portion thereof in the width direction of the apparatus Preferred (claim 2).
Further, the plurality of partial rulers are connected so as to be smoothly connected to each other, and a partial ruler connected upstream or downstream of the partial ruler having the laterally inclined edges is arranged in the apparatus width direction. It is preferable that the 1st drive mechanism to translate is provided (Claim 3).
[0021]
Also, a second drive mechanism for translating the frame supporting the plurality of partial rulers in the apparatus width direction is provided, and the adjustment mechanism is configured by the first drive mechanism and the second drive mechanism. (Claim 4).
Further, of the two partial rulers adjacent to the upper and lower sides of the partial ruler, the downstream ruler is provided with the edge arranged in the above-described lateral inclination, and the upstream ruler is provided with the first drive mechanism. Is configured to be translated in the apparatus width direction by
When finely adjusting the lateral inclination state of the edge of the downstream ruler by translating the upstream ruler by the first drive mechanism, the edge of the upstream ruler corresponds to the ruled line of the cardboard sheet It is preferable to adjust the position in the apparatus width direction of the upstream ruler using the second drive mechanism so as to come to the position (directly below).
[0022]
In this case, the folding ruler is divided from the upstream side into the seat travel direction into three partial rulers, an entrance side ruler, an intermediate ruler, and an entrance / exit side ruler. The entrance ruler is configured to be translated in the apparatus width direction by the first drive mechanism, and the entrance ruler is translated by the first drive mechanism to move the edge of the intermediate ruler. When finely adjusting the laterally inclined state, the position of the entrance-side ruler in the apparatus width direction is adjusted using the second drive mechanism so that the edge of the entrance-side ruler comes to a position corresponding to the ruled line of the cardboard sheet (directly below). Is preferably adjusted (claim 6).
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show the main part of a folder gluer according to an embodiment of the present invention. FIG. 1 is a top view showing the arrangement of the folding ruler, and FIG. 2 is a cross-sectional view of the folding ruler. .
[0024]
The outline configuration of the folder gluer of the present embodiment is the same as that of the prior art except for the folding ruler and its periphery. That is, referring to FIG. 3 (the folding ruler is read as 6 '), the folder gluer provided with the box making machine is provided with left and right upper frames 2 and 2 along the sheet traveling direction. A pulley 3 is provided at each of the inlets and outlets of the frames 2 and 2 (the outlet side is not shown), and a conveyor belt 4 is hung on the inlet pulley 3 and the outlet pulley 3. Below the left and right conveyor belts 4 are also provided lower frames 5 and 5 on the left and right sides, and each conveyor belt 4 runs on the upper surface of the corresponding lower frame 5. The corrugated cardboard sheet 1 is fed between the conveyor belt 4 and the lower frame 5, held on the conveyor belt 4 by the frictional force of the conveyor belt 4, and slides on the upper surface of the lower frame 5. The lower frame 5 is located on the inner side (closer to the center of the machine) than the ruled lines C1 and C2 to be bent.
[0025]
A folding ruler 6 ′ supported by the lower frame 5 is provided along the traveling path of the cardboard sheet 1. On the outside of the travel path of the cardboard sheet 1, a folding bar 7 is provided along the travel path. In the course of traveling, the cardboard sheet 1 is pressed and folded by the folding bar 7 while the folding position is accurately regulated by the tip regulating portion (edge) of the folding ruler 6 '. When the corrugated cardboard sheet 1 travels to the downstream portion and the folding angle becomes close to 180 °, the cardboard sheet 1 is further folded by the folding belt 8.
[0026]
In this folder gluer, as shown in FIG. 1, the folding ruler 6 'is divided into three, an entrance side ruler 10, an exit side ruler 11, and an intermediate ruler 12, and the entrance side ruler 10 moves relative to the lower frame. The exit ruler 11 is fixed to the lower frame as in the prior art, and the intermediate ruler 12 is set so that both ends are connected to the both rulers by pins and the edges of both rulers are smoothly connected. The details will be described below.
[0027]
As shown in FIG. 2, a pin 20 is attached to the lower frame 5 on the inlet side so as to protrude at a right angle (perpendicular to the cardboard sheet guiding direction of the inlet ruler 10, that is, in the apparatus width direction). As shown in FIG. 2, a U-shaped sliding arm 21 is attached to the pin 20 so that the pin 20 can slide. On the other hand, a shaft 23 is rotatably supported on the lower frame 5 by a bearing 22.
[0028]
The shaft 23 is provided with its axis oriented in a direction orthogonal to the pin 20, and an eccentric ring 24 is attached to the shaft 23. The shaft 23 is rotationally driven by a motor (first drive mechanism) 25. Thereby, when the eccentric ring 24 is rotated, the entrance-side ruler 10 slides along the axial direction of the pin 20 (left and right in FIG. 2).
[0029]
The shape of the edge portion of the entrance ruler 10 itself is not particularly different from the conventional one, and the edge portion of the fixed ruler 11 on the outlet side is not particularly different from the conventional one.
As shown in FIG. 1, the intermediate ruler 12 has one end connected to a movable inlet side ruler 10 by a pin 30 and the other end connected to a fixed outlet side ruler by a pin 31. Accordingly, it is supported to swing in the apparatus width direction. The corrugated cardboard sheet 1 is folded mainly in the process of passing through the intermediate ruler 12. In this folding process, the position of the ruled line on the inner surface side of the folded part of the corrugated cardboard sheet 1 gradually becomes inward (inward in the apparatus width direction). Corresponding to the movement (see FIG. 4), the left and right intermediate rulers 12 gradually move the edge position toward the inner side (the inner side in the apparatus width direction) toward the downstream side in the movement direction of the cardboard sheet. The basic layout is horizontal.
[0030]
As shown in FIG. 1, a screw shaft 40 is screwed into the lower frame 5, and the screw shaft 40 is rotationally driven by a motor (second drive mechanism) 41. Therefore, when the motor 40 is driven to rotate the screw shaft 40, the lower frame 5 moves in the width direction of the machine. Although not shown, the upper frame 2 also moves together with the lower frame 5.
[0031]
Therefore, by cooperating the motor 25 that moves the inlet ruler 10 and the motor 41 that moves the lower frame, the positions of the inlet ruler 10 and the outlet ruler 11 in the apparatus width direction can be adjusted. As a result, the edge position of the intermediate ruler 12 can be finely adjusted so as to gradually approach the inner side (the inner side in the apparatus width direction) with an appropriate shift amount from the inlet ruler 10 side toward the outlet ruler 11 side. it can. As described above, in the present embodiment, the motor 25 and the motor 41 constitute an adjustment mechanism that adjusts the inclination (lateral inclination state) of the edge of the intermediate ruler 12 in the apparatus width direction.
[0032]
A folder gluer control panel 42 is provided to control the motor 41 that moves the lower frame and the motor 25 that moves the entrance ruler 10. Connected to the control panel 42 is a push button switch 44 that instructs the drive motor 25 to move the entrance ruler 10 in the opening direction or the closing direction. In addition, the control panel 25 is configured to receive dimension data from a production management device 43 that performs production management of the entire box making machine.
[0033]
Since the folder gluer according to the embodiment of the present invention is configured as described above, the folder gluer control panel 42 receives the position information L ₁ of the ruled lines C ₁ and C ₂ of the cardboard sheet 1 from the production control device 43. When L ₂ is obtained, the motor 41 is rotated to move the lower frame 5 (also the upper frame 2), and the edge of the entrance-side ruler 10 is directly below the ruled lines C ₁ and C ₂ [see FIG. 4 (a)]. Arrange to come. As already described, any cardboard sheet 1 at the entrance may be provided with the edge of the entrance ruler 10 just below the ruled line.
[0034]
In this state, the operator checks the folding state by passing the sheet, determines whether the position of the exit ruler 11 is appropriate, and if it is necessary to widen or narrow it, instructs the push button switch 44. put out. For example, it is assumed that an instruction to narrow the exit side is given. Then, the control panel 44 drives the motor 25 so as to expand the entrance side ruler 10. At the same time, the motor 41 is controlled to narrow the lower frame 5 by the same amount. In this way, the position of the exit side ruler 11 can be narrowed without changing the position of the entrance side ruler 10. When expanding, it is sufficient to perform the reverse control.
[0035]
According to this folder gluer, the position of the folding ruler can be set freely on the entrance side (entrance side ruler 10) and on the exit side (exit side ruler 11). As a result, the entrance side ruler 10 and the exit side ruler 11 Since an edge can be gently formed without using a special moving device in the middle part (intermediate ruler) 12 of the folding ruler connected between them, a highly precise folding device for corrugated cardboard sheets can be obtained with a simple structure. Can do.
[0036]
In other words, the left and right intermediate rulers 12 have a basic arrangement in which the edge position is gradually inclined so as to gradually approach the inner side (the inner side in the apparatus width direction) toward the downstream side in the moving direction of the cardboard sheet. This corresponds to the ruled line position on the inner surface side of the folded part gradually moving inward (inward in the apparatus width direction) (see FIG. 4). In addition, the adjustment mechanism, that is, both the motor 25 and the motor 41 can finely adjust the inclination of the edge of the intermediate ruler 12 in the device width direction (lateral inclination state). It is possible to always follow the ruled line on the inner side of the folded portion of the corrugated cardboard sheet 1 [see FIG. 5B].
As a result, it is possible to prevent a defect in the box accuracy as shown in FIGS. 6A and 6B and to obtain a highly accurate cardboard box.
[0037]
Although the embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and various modifications can be made without departing from the spirit of the present invention.
[0038]
For example, in terms of the gist of the present invention, it is sufficient that the folding ruler on the inlet side and the outlet side can be relatively adjusted in position, so that the same effect can be obtained even if the outlet side ruler is moved. However, as shown in 4 (c), when the folding angle of the panel is large, the ruler must be thin so that the ruler passes between the panels, and it is difficult to incorporate the moving device. From such a viewpoint, it is preferable that the entrance side ruler can be moved in the width direction as in the above embodiment.
[0039]
In the above embodiment, the folding ruler is divided into the entrance side, the middle, and the exit side, and the cardboard sheet is folded in the middle (that is, the edge is inclined horizontally). The corrugated cardboard sheet may be folded at the intermediate side or the outlet side (that is, the edge is inclined horizontally). For example, the intermediate ruler may be moved in the width direction by folding the cardboard sheet with the outlet side ruler (that is, the edge is inclined horizontally).
[0040]
When the folding ruler is divided, the number of divisions is not limited to that of the embodiment (three divisions) and may be two divisions or four divisions or more. In this way, when the folding ruler is divided and connected so that they are smoothly connected to each other, the cardboard sheet is folded (that is, the edge is inclined horizontally). Without providing the first drive mechanism), it is possible to adjust the position by moving the adjacent division ruler in the apparatus width direction, and the apparatus can be configured simply.
[0041]
Needless to say, the folding ruler is not particularly divided, and one end of the dividing ruler itself that folds the cardboard sheet (that is, the edge is inclined horizontally) may be moved in the apparatus width direction.
In the above embodiment, the motors (electric) 25 and 41 are used as the first drive mechanism and the second drive mechanism. However, other mechanisms such as a hydraulic motor may be used. Although the first drive mechanism 25 and the second drive mechanism 41 cooperate to adjust each position of the folding ruler, each position of the folding ruler may be directly adjusted by a single adjustment mechanism. Good.
[0042]
【The invention's effect】
As described above, according to the folder gluer of the present invention, the edge for guiding the corrugated cardboard sheet can be accurately aligned with the ruled line inside the folded part (ie, panel) of the corrugated cardboard sheet. The accuracy can be obtained easily and reliably, and the manufacturing accuracy of the cardboard box can be greatly improved.
[Brief description of the drawings]
FIG. 1 is a top view showing an arrangement configuration of folder rulers for folder gluers according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view (a cross-sectional view taken along the line AA in FIG. 1) of the folder ruler folding ruler according to the embodiment of the present invention.
FIG. 3 is a perspective view showing a conventional folder gluer.
4 is a schematic cross-sectional view of a main part of a conventional folder gluer, where (a) is a cross-sectional view taken along the line XX in FIG. 3, and (b) is a cross-sectional view taken along the line Y-Y in FIG. Section (c) is a section taken along the line ZZ in FIG.
FIG. 5 is an enlarged view showing a state of a bent portion of a corrugated cardboard sheet, (a) is a view showing a flat state where the panel is not yet folded, and (b) is a state where the panel is folded by approximately 90 °. The figure which shows the state of the bending part of (a), (c), (d) is a figure which shows the bending state in case the edge position of a folding ruler is inappropriate.
FIG. 6 is a cross-sectional view showing a defective state of box accuracy.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Corrugated cardboard sheet 1A Corrugated cardboard box 2 Upper frame 3 Pulley 4 Conveying belt 5 Lower frame 6, 6 'Folding ruler 6a Edge of folding ruler 6 Folding bar 8 Folding belt 10 Inlet side ruler 11 Outlet side ruler 12 Intermediate ruler 20 Pin 21 Slide arm 22 Bearing 23 Shaft 24 Eccentric ring 25 Motor (first drive mechanism)
30, 31 pin 40 screw shaft 41 motor (second drive mechanism)
42 Folder gluer control panel 43 production control apparatus 44 push button switch C, C1, C2 borders D1, D2 gap L ₁ ruler deviation amount G panels, L ₂ borders C _1, border position of the position information P on liner C ₂ Q Lower liner ruled line position R Lower liner ruled line belly S Slot VP Virtual plane perpendicular to the surface of the corrugated cardboard sheet 1

Claims (6)

A folder gluer that guides the inside of the folding part to a pair of left and right folding rulers while folding the cardboard sheet, and folds it into a box,
Corresponding to the position of the corrugated sheet guide edge of the pair of left and right folding rulers, the ruled line position on the inner side of the folded portion of the corrugated sheet gradually moves inward during the process of folding the corrugated sheet. It is arranged in a horizontal inclination so that it gradually moves inward in the device width direction,
A folder gluer, characterized in that an adjustment mechanism for finely adjusting the laterally inclined state of the edge is provided by moving main portions of the pair of left and right folding rulers in the apparatus width direction. The pair of left and right folding ruler, both are divided into a plurality of portions ruler sheet running direction, one of a plurality of portions ruler above, that are configured to be movable main portion thereof in the width direction of the apparatus The folder gluer according to claim 1, wherein The plurality of partial rulers are connected so as to be smoothly connected to each other,
A first drive mechanism for translating a partial ruler connected upstream or downstream of the partial ruler having an edge arranged in a laterally inclined manner in the apparatus width direction is provided. Item 2. Folder gluer according to item 2. A second drive mechanism for translating the frame supporting the plurality of partial rulers in the apparatus width direction;
The folder gluer according to claim 3, wherein the adjustment mechanism is constituted by the first drive mechanism and the second drive mechanism. Of the two partial rulers adjacent to the upper and lower sides of the partial ruler, the downstream ruler is provided with the edge arranged in the above-described lateral inclination, and the upstream ruler is provided by the first drive mechanism. Configured to translate in the width direction,
When finely adjusting the lateral inclination state of the edge of the downstream ruler by translating the upstream ruler by the first drive mechanism, the edge of the upstream ruler corresponds to the ruled line of the cardboard sheet 5. The folder gluer according to claim 4, wherein the position of the upstream ruler in the apparatus width direction is adjusted by using the second drive mechanism so as to reach the position. The folding ruler is divided into three partial rulers from the upstream side to the entrance side ruler, an intermediate ruler, and an entrance / exit side ruler in the seat traveling direction.
The intermediate ruler is provided with the above-mentioned laterally inclined edge,
The entrance ruler is configured to be translated in the apparatus width direction by the first drive mechanism,
When finely adjusting the lateral inclination state of the edge of the intermediate ruler by translating the entrance ruler by the first drive mechanism, the edge of the entrance ruler is positioned at a position corresponding to the ruled line of the cardboard sheet. 6. The folder gluer according to claim 5, wherein the position of the entrance ruler in the apparatus width direction is adjusted using the second drive mechanism.

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