JPH08309688A - Slitter for wall paper pasting machine - Google Patents

Abstract

PURPOSE: To extend a life of good sharpness of a rotary blade by providing an angle adjusting means which tilts either one shaft of at least the upper or lower rotary blade in order to variably adjust a space angle formed between flanks of a pair of the upper/lower rotary blades. CONSTITUTION: An angle adjusting mechanism 50 is formed in a short shaft use bracket (hereinafter called SS bracket) 14 of supporting a short shaft 4. By shearing a conveyed wall mounting material, even in the case of naturally wearing an over/under cutter 2, 3 to worsen its sharpness, a bearing in the SS bracket 14 is moved in an upward direction by the angle adjusting mechanism 50, to move also one end side of the short shaft 4 supported to this bearing in an upward direction with the bearing. In this way, by increasing a space angle formed between flanks of the over/under cutters 2, 3, a life of good sharpness of a rotary blade can be lengthened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used, for example, in a wallpaper sizing machine for continuously applying glue to the back surface of a wall covering while it is being conveyed. It relates to machine slitters.

[0002]

2. Description of the Related Art FIG. 2 is a schematic configuration diagram of a conventional general sizing machine slitter 1 which is attached to a conventional general wallpaper sizing machine. As shown in FIG. 2, the slitter 1 is
Over cutter (upper blade) 2, under cutter (lower blade) 3, short shaft 4, long shaft 5
, A guide roll 6 and a spring stopper 7.

The overcutter 2 is formed as a round blade and is slidably supported on short shafts 4 which are separately attached above both ends of the slitter 1. The overcutter 2 is fixed on the short shaft 4 by tightening a set screw (set bolt) 2b attached to a boss 2a provided on the overcutter 2.

The short shaft 4 slidably supports the overcutter 2 and has one end fixed inside a front side plate (hereinafter referred to as "overstay") 12 made of aluminum or the like of the slitter 1. Bracket for short shaft with bearing (hereinafter referred to as "SS bracket")
Called. ) 14 is rotatably supported, the other end is housed in the gear box 10, and the slitter 1 moves in a direction (Y-axis direction) orthogonal to a wall-equipped material carrying direction (arrow X direction) described later. It is attached above both ends. In the gear box 10, a long shaft 5 to be described later
The gear provided on the vehicle and the gear provided on the short shaft 4 are stored in a meshed state.

The undercutter 3 is also formed as a round blade, and the undercutter 3 is fixed to the cutter set boss 8 by being screwed to the cutter set boss 8. The undercutter 3 is in contact with the other end of the spring 9 held by the spring stopper 7 through the cutter set boss 8 and is always directed toward the overcutter 2 by the elastic force of the spring 9. Is being urged.

The undercutter 3, the spring stopper 7, and the coil 9 are slidably supported on the long shaft 5, respectively. By tightening a set bolt 7a attached to the spring stopper 7, Each of the under cutter 3, the spring stopper 7, and the coil 9 is fixed on the long shaft 5.

Both ends of the long shaft 5 are housed in the gear box 10 and are arranged over both lower ends of the slitter 1, and the rear side plate (hereinafter referred to as "center stay") of the slitter 1 is made of aluminum or the like. Bracket for long shaft fixed inside 13 (hereinafter,
It is called "LS bracket". ) 15 rotatably supported. A short shaft 4, a spring stopper 7, a spring 9, and a guide roll 6 for smoothly feeding the conveyed wall covering material into the main body of the gluing machine, which will be described later, are rotatably supported.

A scale (scale plate) 16 is attached to the slitter 1 at a position corresponding to the overcutter 2 on the outer surface of both ends of the overstay 12, and on the inner surface of the overstay 12. In order to prevent the conveyed wall covering material from bending on the guide roll 6, a tension board 19 that holds the wall covering material on the guide roll 6 and can be opened and closed up and down is attached.

Further, a hook 17 is provided on the outer surface of the center stay 13 so that the slitter 1 can be easily attached to or detached from the gluing machine. A power transmission gear 18 for transmitting the drive of the gluing machine and driving the slitter 1 is provided on the rear surface side of one gear box 10.

The short shaft 4 and the long shaft 5 are not arranged in parallel with each other, but are arranged in a direction intersecting with each other. Therefore, the over cutter 2 and the under cutter 3 are in contact with each other while forming a predetermined clearance angle between the flanks.

That is, although the short shaft 4 and the long shaft 5 are arranged so as to intersect with each other, the over cutter 2 and the under cutter 3 are perpendicular to the short shaft 4 and the long shaft 5, respectively. It is pivotally supported. Therefore, the overcutter 2 and the undercutter 3 form a predetermined clearance angle between their respective flanks.

Thus, the above-mentioned over-cutter 2 and under-cutter 3 are attached so as to form a predetermined clearance angle on each flank of the wall cutter, which will be described later. This is for shearing at.

FIG. 3 is a schematic diagram of the front side of the sizing machine 20 to which the slitter 1 is attached, and FIG. 4 is a schematic configuration diagram of the rear side of the sizing machine 20 to which the slitter 1 is attached. . As shown in FIGS. 3 and 4, the gluing machine 20 includes a main body 21, a glue tub 22 for holding glue, and a plurality of rolls 2.
3 to 29, a control box 30, and a leg portion 31 are mainly configured.

The main body 21 is connected to the rear side of the main body 21 by a hinge and is composed of an upper structure 21a and a lower structure 21b which can be opened and closed. The upper structure 21a or the lower structure 21b is glued inside. Tub 22 and multiple rolls 2
3 to 29 are incorporated. In addition, the slitter 1
On the rear surface side of the lower structure 21b.
It is attached by locking the hook 17 of the slitter 1 to a metal stay (not shown) fixed in parallel with 29.

The leg portion 31 supports the main body portion 21 at a predetermined height, and the cross core rod 3 of the wall covering material (cross) 33 wound in a roll shape around the cross core rod 33a.
A cross receiving bracket 32 that rotatably supports 3a is provided on the rear surface side of the leg portion 31.

The control box 30 has a drive motor and a control device (not shown) inside, an operation panel 30a on the outside, and is detachably attached to one side of the main body 21. The drive motor meshes with a gear attached to a shaft end of a required roll of the plurality of rolls 23 to 29, and drives the rolls so that the rolls interlock with each other at a predetermined peripheral speed ratio. The drive of the drive motor is controlled by the control device, and by operating the operation panel 30a installed in the control box 30, the operation command and the operation condition are given to the control device. A control information signal including is supplied.

The assembly of the plurality of rolls 23 to 29 is carried out in the upper structure 21a by the cross 33.
Upper pinch roll 27 for taking in the main body 21
a, a pressing roll 28 that presses the conveyed cloth from above and rotates following it, and a drive roll 26 that applies a feeding tension to the cloth 33 in a state where gears attached to predetermined shaft ends mesh with each other. They are arranged in parallel and are supported by holes formed in a frame side plate made of aluminum or the like of the upper structure 21a directly or through a solid lubricating ring (not shown).

In the lower structure 21b,
The cloth 33 faces the upper pinch roll 27a.
An upper pinch roll 27a for sandwiching and taking in the inside of the main body portion 21, a relatively heavy gluing roll 23 for applying the glue on the back surface of the conveyed cloth, and an amount of gluing to the gluing roll 23 are adjusted. The doctor roll 24, a leveling roll 25 located on the downstream side of the gluing roll 23 for leveling the glue applied to the cloth 21, and the state in which it is partially immersed in the glue in the glue tub 22 A gluing roll 29 that rotates in conjunction with the gluing roll 24 and lifts the glue to the gluing roll 24 is arranged in parallel in a state in which gears attached to predetermined shaft ends are meshed with each other, and the lower structure 21b Direct or solid lubrication ring (not shown) in the hole made in the frame side plate made of aluminum etc.
Is bearing through.

In the gluing operation, the operator first shears the ears having an extra width dimension in order to set the width of the cloth 33 (width in the direction orthogonal to the cloth conveying direction) to a desired width dimension. First, while visually observing the scale plate 16, the over cutter 2 is moved on the short shaft 4 and the under cutter 3 is moved on the long shaft 5 to set a desired cross width.

In order to set the cross width of the over cutter 2 and the under cutter 3 to a desired value, the over cutter 2 is fastened to the boss 2a of the over cutter 2 which is fixed on the short shaft 4. By loosening the set bolt 2b and loosening the set bolt 7a tightened in the spring stopper 7 fixing the undercutter 3 on the long shaft 5, the overcutter 2 and the undercutter 3
To a desired position, and again the set bolt 2b,
7a is tightened and the over cutter 2 and the under cutter 3 are fixed.

After that, the operator lifts the upper structure 21a upward to open the main body 21 and sets the operation panel 30a of the control box 30 in order to initialize the glue.
Is operated to drive the motor, and the over cutter 2, the under cutter 3, and the guide roll 6 arranged in the plurality of rolls 23 to 29 and the slitter 1 are rotated in accordance with the drive of the motor. Drive it.

The over cutter 2, the under cutter 3, and the guide roll 6 arranged in the slitter 1 mesh with a gear attached to the shaft end of a necessary roll of the plurality of rolls 23 to 29. It is adapted to be rotationally driven via the power transmission gear 18.

Then, the tip of the cloth 33 is pulled out, the tip of the cloth 33 is passed through the gap between the rotating over cutter 2 and the under cutter 3, and the ears of the excess cloth are sheared, and glue is applied. It is hung on the front side of the machine body 21, the drive of the motor is stopped, and the upper structure 21a is closed.

After that, the operator further cuts the tip portion of the cloth 33 which is not glued along the cutter guide 34 arranged on the lower structure 21b, and completes the glueing initial setting.

After the gluing initial setting is completed, the operator
A desired cross length is input from the operation panel 30a, and the plurality of rolls 23 to 29, the overcutter 2, the undercutter 3, and the guide roll 6 that are connected by gears by driving the motor rotate at a predetermined peripheral speed ratio. As a result, the cloth 33 is conveyed to the inside of the gluing machine main body 21 and has a desired cloth width.
The glue in the glue tub 22 is applied to the gluing roll 23 by 9 and the gluing applied to the gluing roll 23 is adjusted by the doctor roll 24. The gluing roll 2 on the back side
No. 3 surface glue is applied.

The glued cloth 33 is then pulled by the drive roll 26 and the leveling roll 25 in a state where an appropriate tension is applied and is sent out to the front surface of the main body 21. At this time, the leveling action of the glue surface is given by the peripheral speed difference of the leveling roll 25. When the desired cross length appears on the front surface, the drive of the motor is temporarily stopped, and the cross 3
3 is cut by a cutter along the cutter guide 34, and is accumulated on the tray 35 provided on the front surface of the main body 21 and the glued cloth 33 is folded. The worker repeats this work.

As described above, the conventional wallpaper sizing machine slitter 1 is attached to the rear surface side of the sizing machine main body 21 and sets and positions the over cutter 3 and the under cutter 4 to a desired cross width dimension. The ears of the conveyed cloth 33 are sheared.

The conventional slitter for wallpaper gluing machine is
In addition to the slitter that is driven in conjunction with the gluing machine, a slitter-specific drive motor is provided, and this drive motor rotationally drives the overcutter 3 and the undercutter 4 to shear the ears of the cloth 33 being conveyed. There are also things.

[0029]

However, in the above-mentioned conventional slitter for wallpaper gluing machine, in order to shear the wall covering material (cloth 33) to be conveyed, upper and lower rotary blades (over cutter 2, under cutter). 3) are in contact with each other while forming a predetermined clearance angle,
The upper and lower rotary blades may naturally wear due to use, resulting in poor sharpness.

In this case, in the conventional slitter for wallpaper gluing machine, the pressing force between the upper blade and the lower blade was increased to recover good sharpness and continue the work. The higher the pressing pressure between the lower blade and the lower blade, the faster the degree of wear of the rotary blade progresses, so the sharpness of the rotary blade improves, but the sharpness deteriorates very early again, and the life of the good sharpness of the rotary blade There was a problem that was short.

Further, when the upper and lower rotary blades are worn due to the shearing of the wall covering material and become less sharp, it is best to replace the upper and lower rotary blades with new rotary blades. However, since the frequency of wear increases, it is necessary to replace the rotary blades very early, which increases the economic burden.

Further, in the conventional slitter for wallpaper gluing machine, there is also a slitter for wallpaper gluing machine in which the clearance angle between the upper blade and the lower blade is made large in advance in order to obtain a sharp cut. However, in the slitter for wallpaper gluing machine, there is a problem that the sharpness of the rotary blade becomes much faster, the sharpness of the rotary blade becomes worse, and the life of the good sharpness of the rotary blade becomes shorter. It was

The present invention has been made in view of the above problems, and an object of the present invention is to obtain a slitter for a wallpaper sizing machine capable of prolonging the life of the rotary blade with good sharpness.

[0034]

In order to achieve the above-mentioned object, a slitter for a wallpaper sizing machine according to a first aspect of the present invention has a pair of upper and lower rotary blades and has a sheet-like wall covering during conveyance. In a slitter for wallpaper gluing machine that shears a side edge of a material along a conveying direction, at least an upper or lower rotary blade of a rotary blade is variably adjusted to adjust a clearance angle formed between flanks of the pair of upper and lower rotary blades. It is characterized in that an angle adjusting means for tilting one of the shafts is provided.

[0035]

The slitter for wallpaper gluing machine according to the first aspect of the present invention mainly comprises a pair of upper and lower rotary blades and an angle adjusting means. Here, the pair of upper and lower rotary blades shear the side edge portions of the sheet-shaped wall covering material to be conveyed. The angle adjusting means tilts at least one of the upper and lower rotary blades in order to variably adjust the clearance angle formed between the flanks of the pair of upper and lower rotary blades.

That is, the present invention utilizes the backlash of the gear. That is, the pair of upper and lower rotary blades are vertically supported by separate shafts, and gears (spur gears) are attached to the shaft ends of the shafts.

The gear is rotated by meshing with a gear other than the gear. Normally, in the meshed state, there is a proper clearance (backlash), and even if the meshing angle is slightly changed (specifically, Is 1-3 degrees), and the gear rotates. Of course,
The gear is a gear having a gear pitch such that the gear does not come off even if the meshing angle is slightly changed.

Therefore, even if the meshing angle of the gear is slightly changed, the meshing state of the gear is not disengaged. Therefore, it is possible to tilt the shaft that pivotally supports the pair of upper and lower rotary blades, and between the flanks of the rotary blade. It is possible to variably adjust the clearance angle formed in the.

As a result, when the pair of upper and lower rotary blades naturally wear due to shearing of the wall covering material to be conveyed, and the sharpness becomes poor, the angle adjusting means is operated to The clearance angle formed between the flanks of the rotary blade can be increased, and the life of the sharp cutting edge of the rotary blade can be extended.

[0040]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic configuration diagram of a slitter for wallpaper gluing machine according to an embodiment of the present invention. In the slitter for wallpaper gluing machine according to the present embodiment, as shown in FIG. 1, a short shaft bracket (hereinafter, referred to as “SS bracket”) 14 for supporting the short shaft 4 is provided.
The point that the angle adjusting mechanism (angle adjusting means) 50 is formed is the difference from the conventional slitter for wallpaper gluing machine described with reference to FIG. In FIG. 1, the same parts as those in FIG. 2 are designated by the same reference numerals and the description thereof will be omitted.

The angle adjusting mechanism 50 has, for example, a hole into which the hexagonal wrench can be inserted in the upper surface of the SS bracket 14, and the hexagonal wrench is inserted into the hole and rotated, or on the upper surface of the SS bracket 14. By providing a screw and rotating it, for example, the bearing in the SS bracket 14 is configured to move in the up-down direction (arrow Z-axis direction).

That is, the bearing in the SS bracket 14 is moved vertically (in the direction of the arrow Z axis) by the angle adjusting mechanism 50.
For example, the bearing disposed in the SS bracket 14 rotatably supports one end of the short shaft 4, and therefore the bearing is moved upward, for example. When moved, one end side of the short shaft 4 supported by this bearing also moves upward together with the bearing, and eventually the short shaft 4 tilts with the other end in the gear box 10 as a fulcrum.

As a result, the clearance angle formed between the flanks of the overcutter (upper blade) 2 and the undercutter (lower blade) 3 can be increased. Therefore, even if the over-cutter 2 and the under-cutter 3 are naturally worn and become less sharp by shearing the conveyed wall covering material, the clearance between the flanks of the over-cutter 2 and the under-cutter 3 is reduced. Since the clearance angle formed at is increased, the life of the sharp cutting edge of the rotary blade can be extended.

In this embodiment, the case where the short shaft 4 is tilted to increase the clearance angle formed between the flanks of the over cutter 2 and the under cutter 3 has been described. By tilting, over cutter 2 and under cutter 3
The clearance angle formed between the flanks of the over cutter 2 and the under cutter 3 may be increased by tilting both the short shaft 4 and the long shaft 5. May be increased.

[0045]

As described above, the present invention is provided with the angle adjusting means for tilting the shafts of the upper and lower rotary blades.
There is an effect that a good sharpness of the rotary blade can be extended.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a slitter for a wallpaper gluing machine according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a conventional general slitter for wallpaper gluing machine.

FIG. 3 is a schematic configuration diagram of a front side of a sizing machine to which the conventional wallpaper sizing machine slitter shown in FIG. 2 is attached.

FIG. 4 is a schematic configuration diagram of a rear surface side of a sizing machine to which the conventional wallpaper sizing machine slitter shown in FIG. 2 is attached.

[Explanation of symbols]

2: Over cutter (upper blade) 3: Under cutter (lower blade) 4: Short shaft 5: Long shaft 14: Short shaft bracket (SS bracket) 50: Angle adjustment mechanism

Claims (1)

[Claims] 1. A slitter for a wallpaper gluing machine, which has a pair of upper and lower rotary blades and shears a side edge portion of a sheet-shaped wall covering material being conveyed along a conveying direction, wherein the pair of upper and lower rotary blades are relieved. A slitter for wallpaper gluing machine, comprising an angle adjusting means for inclining at least one of the upper and lower rotary blades for variably adjusting a clearance angle formed between the surfaces.