JP4854261B2 - Slitting unit for wallpaper pasting machine and slitter unit for wallpaper pasting machine - Google Patents

Description

  The present invention relates to a slitter for a wallpaper pasting machine and a slitter unit for a wallpaper pasting machine used when applying glue to a wall covering with a wallpaper pasting machine.

  The wallpaper pasting machine applies the glue to the back surface of the sheet-like wall covering material while the sheet-like wall covering material conveyed in a strip shape is drawn from behind and pulled out from the front. The main body of this wallpaper pasting machine is detachably attached with a hook or the like, or by a wall covering material cutting device (slitter) attached integrally, the side edge of the sheet-like wall covering is moved in the conveying direction. It was cut along and adjusted to the desired wall covering width.

  A conventional slitter for a general wallpaper pasting machine forms a pair of upper and lower rotary blades at positions opposed to upper and lower shafts provided in parallel along a direction orthogonal to the conveying direction of the sheet-like wall covering material. The overcutter (upper blade) and the undercutter (lower blade) are respectively axially fixed, and the sheet-like wall covering material to which the pair of cutters are conveyed is sandwiched and cut from above and below.

  By the way, as a conventional wall covering material construction method, two construction methods, a superposition construction method and a butt construction method, are typical. The overlap construction method is also called the overlap cut construction method. After overlapping the joint parts of adjacent wall coverings several centimeters, both wall coverings are overlapped with a blade such as a cutter to eliminate the need for both wall coverings. After removing the part, it is a construction method that fits with a joint roller.

  On the other hand, the butt construction method is also called a butt construction method. When another wall covering material is pasted on a wall covering material previously pasted on a wall surface, the facet between adjacent wall covering materials is brought into contact with each other. Is the law.

  However, in the overlay construction method, the joint part is finished relatively beautifully, but since the base is cut directly, the base surface cannot follow the shrinkage of the wall covering due to drying, and see-through and peeling complaints may occur. there were. In particular, when the paper material is stuck on the surface in order to hold the glued wall covering material well, such as gypsum board, the surface of the wall covering material after sticking The paper material of the base material was pulled by both wall coverings due to the shrinkage, and the scratched portion sometimes appeared as a see-through.

  Therefore, at present, the butt construction method is becoming the mainstream of the interior construction method, but high linearity and smoothness are required for the small edge portion of the wall covering material to be stuck, and a high straight line for the cut small edge portion. It has been proposed to cut wall coverings with a single rotary blade as a slitting machine for wall covering glue that can obtain high performance and smoothness. In order to obtain higher linearity and smoothness, A slitter and slitter unit for wall covering that eliminates bending and blurring of the wall covering by a rotating member having a peripheral wall section that holds the wall covering surface at a fixed height position along the blade section of the rotating blade at the cutting point. It has been proposed (see, for example, Patent Document 1).

In this slitter and slitter unit for wall covering, it is disposed at an angle of several degrees so that the flat surface of the rotating member contacting the hub contacts at an angle at the cutting point of the wall covering of the rotary blade rotating at high speed. Thus, it is disclosed that a certain wall covering material cutting effect can be obtained. As disclosed in the example of Patent Document 1, this discloses that “the rotating member (24) is brought into contact with the rotating blade (22) at an angle of about 1 degree”. 24) and the rotary blade (22) are arranged so that the cross (4) does not enter the gap between the rotary member (24) and the rotary blade (22) when cutting the cross (4) (paragraph 1 of Patent Document 1). This is for the purpose of reference.
JP 2002-103277 A

  However, depending on the material of the wall covering material, the cut surface may be rough or there may be a part that is not cut. This is often the case for woven wall coverings with a woven fabric on the surface, especially for thick woven wall coverings and wall coverings with irregularly laid fibers on the surface.

  The present invention provides a slitter for a wallpaper pasting machine and a slitter unit for a wallpaper pasting machine that can obtain a good cutting state even with a thick fabric wall covering or a wall covering provided with fibers irregularly on the surface layer. With the goal.

The slitter for wallpaper pasting machine according to the invention described in claim 1 is a slitter for wallpaper pasting machine that cuts the side edge of the sheet-like wall covering in the transport direction along the transport direction.
A shaft disposed at a position perpendicular to the conveying direction on the front side or the back side of the wall covering material and parallel to the wall covering surface;
A rotary blade for cutting wall covering material provided with a thin blade portion fixed on the shaft;
A rotating member pivotally supported by a mounting shaft arranged in parallel with the shaft on the opposite surface side through the wall covering,
The rotating member rotates on the shaft by pressing the peripheral edge of the rotating blade in a direction crossing in the rotational direction from the side surface at a cutting point on the opposite surface side through the wall covering material. The blade portion of the rotary blade is bent at the cutting point.

In the slitter for wallpaper pasting machine according to the invention described in claim 2 , the rotating member according to claim 1 is a partial overlapping region with the peripheral edge of the rotary blade with the cutting point as an end. A flat surface portion pressed against the rotary blade,
The inclination angle of the flat surface portion with respect to the blade portion of the rotary blade is 3 degrees or more and 10 degrees or less.

The slitter unit for wallpaper pasting machine according to the invention described in claim 3 is a slitter unit that is detachable with respect to the slitter body provided with a driving means,
A shaft that is orthogonal to the conveying direction on the front surface side or the back surface side of the wall covering material and is arranged to be rotatable by driving the drive system at a position parallel to the wall covering material surface;
A rotary blade for cutting wall covering material provided with a thin blade portion fixed on the shaft;
A rotating member pivotally supported by a mounting shaft arranged in parallel with the shaft on the opposite surface side through the wall covering,
The rotating member rotates on the shaft by pressing the peripheral edge of the rotating blade in a direction crossing in the rotational direction from the side surface at a cutting point on the opposite surface side through the wall covering material. The blade portion of the rotary blade is bent at the cutting point.

Slitting unit wallpaper sizing machine according to the invention described in claim 4, partially overlapping regions of the peripheral portion of the rotary blade rotating member, that the ends of the cutting point according to claim 3 A flat surface portion pressed against the rotary blade
The inclination angle of the flat surface portion with respect to the blade portion of the rotary blade is 3 degrees or more and 10 degrees or less.

A slitter unit for a wallpaper pasting machine according to the invention described in claim 5 is supported by penetrating a mounting shaft in which the rotating member according to claim 4 is fixed at both ends to the slitter unit main body via a bearing,
The mounting shaft is attached to the unit body by inclining so that the inclination angle of the flat surface portion of the rotating member with respect to the blade portion of the rotary blade is 3 degrees or more and 10 degrees or less,
An urging means for urging the rotating member in the direction of the rotating blade is provided.

  The present invention is capable of obtaining high linearity and smoothness at the cut edge of the wall covering material to be cut, as well as a wall covering material provided with a thick woven wall covering or fiber irregularly on the surface layer. However, there is an effect that a good cutting state can be obtained.

In the present invention, in the slitter for wallpaper pasting machine that cuts along the conveyance direction side edge of the sheet-like wall covering material in the conveying direction, orthogonal to the conveying direction on the front side or the back side of the wall covering material, A shaft disposed at a position parallel to the wall covering surface, a rotating blade for cutting the wall covering provided with a thin blade portion fixed on the shaft, and an opposing surface side through the wall covering. and a rotating member rotatably supported on said shaft and substantially arranged parallel to the mounting shaft, the rotating member, the blade of the rotary blade at a cutting point of the opposite side through the wall covering Thick woven wall covering material because the peripheral edge is pressed in the direction crossing in the rotational direction from the side surface, and the blade of the rotary blade rotating on the shaft is slightly bent at the cutting point. A good cutting state can be obtained even with wall coverings having irregular or fibers on the surface.

  That is, the cut surface was rough or there was a part that was not cut. This is because, in the cutting of wall coverings with a rotary blade, the rotating blade is a straight straight line with a sharp tip, and the wall covering with a thick woven wall covering and fibers irregularly provided on the surface is cut. In this case, the fibers along the wall covering conveyance direction and the rotating blade rotation direction are not cut at the cutting point, but are cut downstream from the cutting point, resulting in rough cutting or partial cutting. It has been verified by the present inventors that this is a part that has not been made.

Therefore, the blade portion of the rotary blade is slightly bent at the cutting point by a rotating member that presses the peripheral edge portion of the rotary blade in the direction crossing the rotation direction from the side surface at the cutting point. Thereby, in the point which passed the cutting point, the force in which the bent blade part returns to the original state works. Therefore, after the blade cuts the wall covering at the cutting point, the bending of the rotary blade returns and the cutting point is moved laterally with respect to the rotating surface of the rotating blade, so that the conveying direction and rotation of the wall covering Even fibers that run along the blade rotation direction are cut well after the cutting point and beyond, so even thick fabric wall coverings and wall coverings with irregular fibers on the surface are good. Can be obtained.

As the rotating member of the present invention, in order to slightly bend the blade portion of the rotary blade at the cutting point, the peripheral portion of the blade portion of the rotary blade is pressed from the side surface in the direction crossing the rotation direction at the cutting point. It ’s fine.

As a preferred aspect of the present invention, the rotating member includes a flat surface portion that is pressed against the rotating blade in a partial overlapping region with a peripheral edge of the rotating blade with the cutting point as an end portion. The angle of inclination of the rotary blade with respect to the blade portion is disclosed to be 3 degrees or more and 10 degrees or less. As a result, it is possible to obtain high linearity and smoothness at the cut edge of the wall covering material to be cut, as well as thick woven wall coverings and wall coverings irregularly provided with fibers on the surface layer. A good cutting state can be obtained.

The rotating member in the present invention may include a flat surface portion that is pressed against the rotating blade in a partial overlapping region with the peripheral edge of the rotating blade with the cutting point as an end. Since the axis line is pivotally supported on the mounting shaft arranged substantially parallel to the shaft on the opposite surface side through the wall covering, there is substantially no gap between the rotating member and the rotating blade, and high cutting The linearity and smoothness of the fore edge can be obtained. Further, since the inclination angle of the flat surface portion with respect to the blade portion of the rotary blade is 3 degrees or more and 10 degrees or less, a reliable wall covering material cutting effect can be obtained.

  If the inclination angle of the flat surface portion with respect to the blade portion of the rotary blade is smaller than 3 degrees, the cut surface may be rough or may be partially uncut depending on the material of the wall covering material. If the angle is greater than 10 degrees, the pressing force applied to the blade portion of the rotary blade becomes too large, the blade portion becomes excessively bent, damage is increased, and the service period is greatly shortened. It is necessary to shorten the period of blade replacement. Therefore, 5 degrees or less is more preferable.

  As a specific configuration of the rotating member of the present invention, the mounting shaft that supports the rotating member is arranged substantially parallel to the shaft that supports the rotating blade. However, the mounting angle may change during long-term use. For this reason, when the mounting shaft itself is tilted and both shaft ends are firmly fixed, and the rotating member is pivotally supported on the mounting shaft, the change in the tilt angle with time is less. The rotating member and the mounting shaft are pivotally supported via a bearing, whereby the rotating member can be easily rotated. Further, if the rotary member is pressed against the rotary blade by allowing the spring material to pass through the mounting shaft, the configuration can be simplified.

  Preferably, the portion of the rotating member that contacts the rotating blade is made of an abrasive material, so that the deterioration of the rotating blade accompanying use is suppressed as much as possible, and the rotating blade can be used for a long period of time. The abrasive may be any material that can sharpen the rotary blade by abutting and rotating to the rotary blade. For example, a ceramic member is selected.

  The diameter of the rotating member in the present invention is not limited at all with respect to pressing of the rotating member. However, if the diameter of the rotating member is made equal to that of the rotating blade, it will protrude largely to the rear surface of the slitter, which is not preferable in terms of design. Further, by reducing the diameter of the rotary blade as compared with the diameter of the rotary blade, there is an advantage that the rotary member having no unique drive source can be easily rotated by the rotation of the pressed rotary blade. However, if it is too small, unevenness is likely to occur in the pressing angle to the blade portion of the rotary blade at the cutting point of the wall covering material, and it becomes difficult to obtain linear cutting, so the diameter of the rotating member is preferably rotated. It is set to 1/2 or less and 1/4 or more with respect to the diameter of the blade.

  In the present invention, since the rotating member is rotated by the rotation of the rotating blade, a drive system for driving the rotating member itself is not necessary. For this reason, the shaft, the rotary blade, the mounting shaft, and the rotating member are arranged in one housing and fixed at a predetermined position on an axis perpendicular to the wall covering material conveying direction. The structure of the slitter can be simplified.

  Preferably, the housing has a curved curved surface, for example, and is provided with an ear-cut guide that is discharged while sliding the side edge of the wall covering material cut on the curved curved surface. Can also be done smoothly.

The slitter unit for wallpaper pasting machine of the present invention is a slitter unit that can be attached to and detached from a slitter body provided with a driving means, and is orthogonal to the conveying direction on the front side or the back side of the wall covering, A shaft disposed rotatably by a drive system at a position parallel to the surface; a wall blade trimming rotary blade having a thin blade portion fixed on the shaft; and the wall covering. A rotating member pivotally supported on a mounting shaft disposed substantially parallel to the shaft on the opposite surface side, and the rotating member is a cutting point on the opposite surface side through the wall covering material The blade edge of the rotary blade is pressed in the direction crossing the rotation direction from the side surface side, and the blade part of the rotary blade rotating on the shaft is slightly bent at the cutting point . High linearity and smoothness are obtained at the cut edge of the wall covering material to be cut. Bets can be, construction of slitter can be simplified.

  Further, as a preferred aspect of the present invention, the rotating member is supported by penetrating a mounting shaft fixed at both ends to the slitter unit main body via a bearing, and the mounting shaft is a blade portion of the rotary blade of the flat surface portion of the rotating member. The mounting shaft itself is tilted by providing biasing means for tilting the rotating member in the direction of the rotary blade so that the tilting angle with respect to the angle is 3 degrees or more and 10 degrees or less. Since both shaft ends are firmly fixed and the rotating member is pivotally supported on the mounting shaft, the change in the inclination angle with time is small. Further, since the rotating member and the mounting shaft are pivotally supported via bearings, the rotating member can be easily rotated. Further, the structure can be simplified if the rotating member is pressed against the rotating blade by allowing the spring material to pass through the mounting shaft.

  FIG. 1 is an explanatory view showing a simplified configuration of a wallpaper pasting machine provided with a slitter for a wallpaper pasting machine according to the present invention. As shown in FIG. 1, the automatic wallpaper pasting machine main unit 1 is glued to a cloth (wall covering) 4 taken from the rear side into the pasting machine main unit 1 in the upper structure 2 as a main roll. The press roll 11 for applying the feed tension in the front direction of the machine main body 1 and the drive roll 12 that follows and rotates by pressing the cross 4 are arranged in parallel at predetermined intervals, respectively. It is pivotally supported on the side plate of the upper structure 2.

  Further, in the lower structure 3, the glue contained in the glue basket 5 is glued by a glue raising roll 16, and glue is applied to the back surface of the cloth 4 transferred in contact with the glue. An attaching roll 6, a doctor roll 7 that adjusts the amount of glue in contact with the pasting roll 6, and a leveling roll 8 that applies an appropriate tension to the cloth 4 together with the drive roll 12 and feeds it in the front direction are mutually predetermined. It is pivotally supported on the side plate of the lower structure 3 so as to be arranged in parallel with a gap.

  Further, the cloth 4 passes through the wallpaper cutting device (slitter) 20 on the back side of the gluing machine body 1 by the drawing force of the upper pinch roll 13 of the upper structure 2 and the lower pinch roll 15 of the lower structure 3. Pulled into the body. Although the cutting device 20 of the present embodiment shows that the driving source (not shown) is built in the cutting device 20, it may be obtained from the gluing machine main body.

  For the pasting operation of the cloth, the leading end of the cloth 4 is pulled out from the original cloth 14 that is pivotally supported on the leading end of the cross receiving bracket 10 extending rearward from the leg unit 9 of the pasting machine, and the wallpaper cutting device (slitter) 20 From the back side of the device, it is pulled in from the front of the device 20 while being turned and moved into the device 20 while cutting both ears (side edges) with a rotary blade. Both ears 4a are discharged from the ear-cut guide.

  After the tip of the cut cloth 4 pulled out from the front of the cutting device 20 is placed on the lower structure 3 so as to hang from the front of the gluing machine main body 1 with the upper structure 2 opened, the upper structure 2 is closed to obtain an initial setting state sandwiched between predetermined rolls.

  After completion of the initial setting, driving of the drive source motor of the gluing machine is started, and driving of the motor of the cutting device 20 is started. As a result, when the cross 4 passes through the cutting device 20, the cutting of both ears by the rotation of the rotary blade and the pasting of the cross 4 in the pasting machine main body 1 after the width adjustment by the cutting are continuously performed. Done. The driving source of the cutting device is configured to be driven by a motor, but the driving of the driving source of the gluing machine may be transmitted by a gear or the like.

  FIG. 2 is an exploded view showing the configuration of the cutting apparatus, and FIG. 3 is an exploded view showing the configuration of the main part of FIG. As shown in FIGS. 2 and 3, the cutting device 20 includes a main body housing 21 having a substantially U-shaped cross section and main body side plates 22 disposed on both sides thereof. A pair of hooks 23 are attached to each of the main body side plates 22 and are installed by hooking them to the back of the gluing machine main body 1.

  Overstays 24 are attached to the ceiling surface of the main body housing 21, and slitter units 30 are slidably held in both sides of the overstays 24. In addition, slit grooves 25 for fixing a fixing screw 31 for fixing the slitter unit 30 slidably held are formed on both sides of the longitudinal inner wall surface at the back of the main body housing 21.

  Further, each of the main body side plates 22 includes a tension bar rotating member 27 that generates a tension by sandwiching a cloth by a tension bar 26 below the cutting device, a holding member 28 thereof, and another tension bar (on the cutting surface). A tension bar holding member 29 that holds a not shown) is attached.

  FIG. 4 is a side view of the slitter unit 30. FIG. 5 is a front view of FIG. FIG. 6 is an explanatory view on the back side of the cutting apparatus equipped with the slitter unit. As shown in FIGS. 3, 4, 5, and 6, the slitter unit 30 includes a fixed bracket 32, a cutter box 33 connected to the fixed bracket 32, and a motor bracket 34. The cutter box 33 and the motor bracket 34 are installed in a housing 21 that forms a cut surface of the cutting device 1.

  The cutter box 33 is rotatably supported inside by the rotary blade 40, and a guide member 41 is attached to the front surface of the cutter box 33 to guide the cross-side end after cutting to the outside of the slitter body. A pressing member 39 is attached to a portion of the rotary blade 40 that reaches the cutting position, and presses the cloth toward the guide member 41. The cutter box 33 is further connected via a gear unit 36 and a gear unit cover 37 to a motor 35 serving as a rotary blade drive source in a motor bracket 34 in which a rotary shaft of the motor is connected to a shaft 42 of the rotary blade 40. .

  The suspension mechanism for suspending the slitter unit 30 is by suspending the motor bracket 34 on the slide bracket 38 that is slidably held by the overstay 24 described above. Further, as a fixing mechanism for fixing the slitter unit 30, the fixing screw 31 inserted into the fixing bracket 32 provided on the side of the cutter box 33 is tightened into the slit groove 25 of the main body housing 21.

  The shaft 42 of the rotary blade 40 is attached to the side wall of the cutter box 33 on the fixed bracket 32 side via a bearing 43. The rotary blade 40 is a single-cut blade having a thickness of 0.5 mm, and is attached to the rotary blade mounting boss 44 with a screw 45. A shaft 42 that holds the rotary blade 40 and the rotary blade mounting boss 44 that holds the rotary blade 40 is connected to the output shaft 36 ′ of the gear unit 36 by a flat claw portion 42 ′ and is mounted via a spring 46. Thus, the rotary blade 40 is always provided with an outward pressing force.

  On the other hand, at the cross cutting position in the cutter box 33, the rotating member 50 pivotally supported by the mounting shaft 51 disposed substantially parallel to the shaft 42 of the rotary blade 40 on the opposite surface side through the cross is provided. Prepare.

  The mounting shaft 51 has a shaft tip portion and a mounting washer fixed to the guide member 41 with screws. The attachment angle of the attachment shaft 51 to the guide member is substantially parallel to the shaft 42 of the rotary blade 40, but is fixed at an angle of 3 degrees or more and 10 degrees or less, specifically, 3 degrees as described later. The rotating member 50 is rotatably attached to the attachment shaft 51 via a bearing 53. The rotating member 50 has a cylindrical structure. Further, a part of the flat surface portion on the upper surface of the rotating member 50 is arranged so as to constitute a partial overlapping region with the peripheral edge portion of the rotary blade 40 having the cutting point as an end portion. A spring 52 is interposed on the mounting shaft 51 of the rotating member 50 and urges and presses the blade portion of the rotating blade 40 that contacts the rotating member 50.

  As shown in FIG. 5, the mounting shaft 51 is fixed at an angle of 3 degrees or more and 10 degrees or less, specifically 3 degrees with respect to the shaft 42, so that the flat surface portion of the rotating member 50 is fixed to the blade portion of the rotary blade 40. The inclination angle is 3 degrees or more and 10 degrees or less, specifically 3 degrees. As a result, it is possible to obtain high linearity and smoothness at the cut edge of the wall covering material to be cut, as well as thick woven wall coverings and wall coverings irregularly provided with fibers on the surface layer. A good cutting state can be obtained. Further, since the mounting shaft 51 itself is tilted and fixed, and further supported by the rotating member and the mounting shaft 51 via a bearing, the rotating blade 40 of the flat surface portion of the rotating member 50 can be used over a long period of time. There is also an advantage that the change in the inclination angle with respect to the blade portion is minimized.

  In addition, since the rotation member 50 is 1/3 compared with the diameter of the rotary blade 40, the rotary member 50 which does not have an original drive source was hold | maintained with the rotational force of the pressed rotary blade 40. The attachment shaft 51 can be easily rotated.

  Further, the rotating member 50 is made of a ceramic abrasive material at a portion that contacts the rotating blade 40. For this reason, the blade part of the rotary blade 40 is sharpened with use, and the rotary blade 40 can be used over a long period of time.

It is explanatory drawing which shows the simple structure of the wallpaper pasting machine provided with the slitter for wallpaper pasting machines of this invention. It is an exploded view which shows the structure of a cutting device. It is an exploded view which shows the structure of the principal part of FIG. 3 is a side configuration diagram of the slitter unit 30. FIG. It is a front block diagram of FIG. It is explanatory drawing of the back side of the cutting device equipped with the slitter unit.

Explanation of symbols

1… Automatic wallpaper pasting machine body,
2… Upper structure,
3 ... Lower structure,
4 ... Cross (wall covering material),
4a ... Both ears,
5 ... glue paste,
6 ... Glue roll,
7 ... Doctor roll,
8 ... Leveling roll,
9 ... Gluing machine legs
10 ... Cross receiving bracket,
11 ... Presser roll,
12 ... Drive roll,
13 ... Upper pinch roll,
14 ... Cross cloth,
15 ... Lower pinch roll,
16 ... Glue roll,
20 ... Wallpaper cutting device (slitter),
21 ... body housing,
22 ... side plate of the main body,
23 ... Hook,
24 ... Overstay,
25 ... slit groove,
26 ... tension bar,
27 ... Tension bar rotating member,
28 ... tension bar holding member,
29 ... tension bar holding member,
30 ... Slitter unit,
31 ... Fixing screw,
32. Fixing bracket,
33 ... Cutter box,
34 ... Motor bracket,
35 ... motor,
36 ... Gear unit,
37 ... Gear unit cover,
38 ... slide bracket,
39: holding member,
40 ... rotary blade,
41 ... Guide member,
42 ... shaft,
43 ... bearings,
44 ... Rotary blade mounting boss,
45 ... Screw,
46 ... Spring,
50: Rotating member,
51 ... Mounting shaft,
52 ... Spring,
53 ... Bearing,

Claims (5)

In the slitter for wallpaper pasting machine that cuts the side edge of the sheet-like wall covering in the transport direction along the transport direction,
A shaft disposed at a position perpendicular to the conveying direction on the front side or the back side of the wall covering material and parallel to the wall covering surface;
A rotary blade for cutting wall covering material provided with a thin blade portion fixed on the shaft;
A rotating member pivotally supported by a mounting shaft arranged in parallel with the shaft on the opposite surface side through the wall covering,
The rotating member rotates on the shaft by pressing the peripheral edge of the rotating blade in a direction crossing in the rotational direction from the side surface at a cutting point on the opposite surface side through the wall covering material. A slitter for wallpaper pasting characterized in that the blade portion of the rotary blade is bent at the cutting point. The rotating member includes a flat surface portion that is pressed against the rotating blade in a partial overlapping region with a peripheral edge of the rotating blade with the cutting point as an end,
The slitter for wallpaper pasting according to claim 1, wherein an inclination angle of the flat surface portion with respect to the blade portion of the rotary blade is 3 degrees or more and 10 degrees or less. A slitter unit detachably attached to a slitter body provided with a driving means,
A shaft that is orthogonal to the conveying direction on the front surface side or the back surface side of the wall covering material and is arranged to be rotatable by driving the drive system at a position parallel to the wall covering material surface;
A rotary blade for cutting wall covering material provided with a thin blade portion fixed on the shaft;
A rotating member pivotally supported by a mounting shaft arranged in parallel with the shaft on the opposite surface side through the wall covering,
The rotating member rotates on the shaft by pressing the peripheral edge of the rotating blade in a direction crossing in the rotational direction from the side surface at a cutting point on the opposite surface side through the wall covering material. A slitter unit for wallpaper pasting characterized in that the blade portion of the rotary blade is bent at the cutting point. The rotating member includes a flat surface portion that is pressed against the rotating blade in a partial overlapping region with a peripheral edge of the rotating blade with the cutting point as an end,
The slitter unit for wallpaper pasting according to claim 3, wherein an inclination angle of the flat surface portion with respect to the blade portion of the rotary blade is 3 degrees or more and 10 degrees or less. The rotating member is supported through through a bearing on a mounting shaft fixed at both ends to the slitter unit body,
The mounting shaft is attached to the unit body by inclining so that the inclination angle of the flat surface portion of the rotating member with respect to the blade portion of the rotary blade is 3 degrees or more and 10 degrees or less,
The slitter unit for a wallpaper pasting machine according to claim 4, further comprising an urging means for urging the rotating member in the direction of the rotating blade.

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