JP2593941Y2 - Automatic wallpaper gluing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic wallpaper sizing machine for continuously applying glue to the back of a long wall material when a sheet-like wall material is applied to indoor wallpaper. Things.

[0002]

2. Description of the Related Art A general wallpaper sizing machine includes a main body having a glue tub between a table for suspending a wall material (cloth) wound in a roll shape and a cloth receiver for receiving a cloth after gluing. Are arranged, and various roll devices are incorporated in the main body to constitute a manual or motorized automatic sizing machine.
The rolls are assembled by mounting ball bearings on the relatively heavy glue rolls on frame plates (bearing plates) made of aluminum or the like located on both sides of the glue tub, and other rolls by Lulon metal or A bearing bush made of plastic metal (Duracon) or the like is press-fitted to receive the shaft of each roll, and a gear is attached to the end of each roll shaft so that each roll is linked at a predetermined peripheral speed ratio.

[0003]

In a conventional automatic wallpaper sizing machine, static electricity is gradually charged on a rubber pinch roll, which is an insulator, due to friction with a wall covering (cloth), and the charge level rises. Then, a discharge is generated from the end of the metal axis of the pinch roll to the metal structure near the gluing machine. This discharge produces a sharp pulse-like discharge current in the gluing machine metal structure,
The microcomputer-equipped control device of the gluing machine sometimes malfunctions due to the influence of the electromagnetic noise caused thereby.

An object of the present invention is to provide an automatic wallpaper sizing machine which does not malfunction by removing charges before the charging level becomes high.

[0005]

In the automatic wallpaper sizing machine according to the first aspect of the present invention, the sheet-like wall covering material drawn into the main body by a pair of pinch rolls is provided on a predetermined path by a plurality of rolls. In a wallpaper gluing machine for continuously transferring the glue in a glue tub in the main body to one surface of the wall covering material by a gluing roll while guiding, at least one of the pinch rolls has a metal axis of the pinch roll. And the pinch low
The metal stay that contacts the wall covering on the upstream side of the
It is provided with an antistatic means comprising a connecting means which is electrically conductive .

[0006] In the automatic wallpaper sizing machine according to the present invention, it is drawn into the main body by a pair of pinch rolls.
The rolled sheet-like wall covering into a predetermined path with multiple rolls
While guiding, the glue in the glue tub in the main body is turned into a glue roll.
Of a wallpaper sizing machine that continuously transfers to one surface of the wall covering
At least one of the pinch rolls has a pinch roll.
Ground connection means to ground the metal shaft center to the metal structure of the gluing machine
Be those having antistatic means including said Pinchiro
The grounding between the metal axis of the tool and the metal structure is
This is performed by a C-type spring ring that can be inserted and removed .

[0007]

[0008]

In the present invention, the sheet-like wall covering material drawn into the main body by a pair of pinch rolls is guided to a predetermined path by a plurality of rolls, and the glue in the glue tub in the main body is fixed to the wall by a gluing roll. In a wallpaper sizing machine that continuously transfers to one surface of the packaging material, at least one of the pinch rolls is provided with antistatic means. This prevents the microcomputer-equipped control device from malfunctioning.

The antistatic means is constituted by connecting means for electrically connecting the metal axis of the one pinch roll and a metal stay which comes into contact with the wall material on the upstream side of the pinch roll. The charge generated on the surface of the rubber portion of the roll is suppressed by the cancellation of the charge by the upstream metal stay which is conducted to the metal axis.

[0010] The antistatic means, the pair of pinch rolls of the metal axis can also be configured by the ground connection means installed in the metal structure of the gluing machine, in particular of the pinch roll metal axis
C-shaped grounding between the metal structure and the metal structure
In the case of using a spring ring, a C-shaped spring ring is used in which the electric charge to be accumulated on the metal shaft is in wide contact.
Immediately it is released to the metal structure I.

[0011]

1 is an explanatory view showing the configuration of an embodiment of the automatic wallpaper machine of the present invention. The wallpaper machine 1 includes a main body 3 with a built-in glue tub supported by legs 2, a cross roll 4 rotatably supported by a gantry on the rear side of the main body 3, and a main body 3.
And a cross receiver 5 arranged on the front side of the camera.

The wall covering or cloth 7 is a cross roll 4
An upper lid 6 that can be opened and closed on an inner glue tub is hinged on the rear side of the main body 3, and a cloth 7 passes under the upper lid 6 to form a framework of the main body 3. Pass over the metal stay 70 (FIGS. 2 and 3) which constitutes a part of. An operation panel 65 for numerically displaying a length measurement result measured by a rotary encoder 64 (FIG. 4) described later and for giving a drive control command of the motor 8 is provided in a central portion of the upper lid portion 6. A cutter guide 36 for guiding a cutter when cutting the cloth in the width direction is provided on the front surface of the gluing machine main body 3.

As shown in FIGS. 2 to 5, the main body 3 and the upper lid 6 each have a pair of engineering plastic frame side plates 30a, 30b and 60a, 60b as left and right bearing plates therein. , And its outside is covered with covers 38a, 38b, 68a, 68b, respectively. The lower cover 38b is further provided with a motor cover 39, in which the roll drive motor 8 is housed.

In the main body 3, a lower roll 31, a gluing roll 32, and a leveling roll 34, which constitute a pinch roll for taking in the cloth, are arranged in parallel below the cloth passing surface on the glue tub. A doctor roll 33 and a sizing roll 35 are arranged in contact with the sizing roll 32. The gluing roll 32 includes the frame side plates 30a, 3
The lower roll 31, the doctor roll 33, and the leveling roll 34 are directly or via solid lubrication rings in holes formed in the frame side plates 30a, 30b. The gluing roll 35 is directly supported by another bearing plate 40 made of engineering plastic described on the bottom of the glue tub as shown in FIG. Lower roll 31
As shown in FIG. 3, the metal shaft of
1 is electrically connected to the metal stay 70.

In the upper cover part 6, an upper roll 61 constituting the pinch roll for taking in and a drive roll 63 for feeding tension to the cloth 7 are arranged in parallel above the cross passage surface. These are mounted in holes formed in the frame side plates 60a and 60b directly or through a solid lubricating ring. Between the upper roll 61 and the drive roll 63, a pressing roll 62 which presses the cloth 7 from above and rotates following the cloth 7 is arranged in parallel. The pressing roll 62 is connected to right and left via pressing angle adjusting links 66a and 66b. It is supported by the frame side plates 60a and 60b.

The body portion 3 and the upper lid portion 6 are hingedly connected to each other on the rear side of the respective frame side plates, and the positions of the respective portions are determined so that each roll is in the state shown in FIG. In this state, the upper and lower pinch rolls 61 and 31 pinch the cloth 7 therebetween, and the drive roll 63 and the leveling roll 34 cross the cloth 7 therebetween.
Is to approach through.

The rotation of the motor 8 is transmitted to the glue roll 32 by a gear, and further transmitted to the lower roll 31 and the doctor roll 33 by the gear at the other end of the glue roll 32. The leveling roll 34 is driven via a gear from the doctor roll 33, and the gluing roll 35 is a gluing roll 3.
2 through another gear. Further, with respect to the upper lid portion 6 side, the drive roll 63 is driven by being coupled with the leveling roll 34 by a gear in a state in which the upper lid portion 6 is closed, and the other press roll 62 and the roll 61 are idle wheels which rotate by contact with the cloth 7. is there. A rotation encoder 64 such as a photomicrosensor is attached to the upper roll 61, and functions as a length measuring roll for a glued cloth.

At the time of the gluing operation, the upper lid 6 is opened, the tip of the cloth 7 is pulled out from the cross roll 4, and it is dropped on the front side through the space between the upper and lower pinch rolls 61 and 31 while contacting the metal stay 70 from the rear side of the main body. After closing the upper lid 6, the motor 8 is driven by a predetermined initial amount. When the motor 8 is driven, the rolls connected by gears rotate at a predetermined peripheral speed ratio, whereby the glue in the tub adhered to the sizing roll 32 by the sizing roll 35 is removed by the doctor roll 3.
The glue on the surface of the gluing roll 32 is transferred and applied to the back surface of the cloth 7 which is controlled to an appropriate amount adjusted in advance and moves with the rotation of the gluing roll 32 under the holding effect of the holding roll 62.

The glued cloth is then pulled by the drive roll 63 and the leveling roll 34 under appropriate tension and emerges from the front of the main body. At this time, the peripheral speed difference of the leveling roll 34 Gives a leveling effect on the glue surface. When the cloth 7 comes to the front by the initial amount, the motor 8
Is stopped once, and the glue-free portion at the tip is
6 is cut by a cutter, and then the required cross length is input from the operation panel 65 and the motor 8 is similarly driven.
A cloth of a required length glued to the back surface of the entire length is accumulated in a folded state on a cloth receiver (tray) 4 on the front surface.

FIG. 6 is an explanatory view showing an enlarged view of the lower roll 31 and the metal stay 70 in the main body 3. As shown in FIG. 6, the metal axis of the lower roll 31 and the metal stay 70 are connected by a spring 71 that is electrically conductive. One end of the spring 71 is a C-shaped detachable spring ring 72, and the other end is fixed with a screw.
By being electrically conducted by the spring 71, the electric charge can be removed before the charging level due to the static electricity charged on the lower roll 31 increases during the work, and the microcomputer mounted control device of the gluing machine due to the influence of the electromagnetic noise is provided. A malfunction does not occur. The antistatic mechanism in this case is considered as follows. That is,
The electric charge generated by the friction between the cloth 7 and the lower roll 31 has an opposite sign on the roll surface and the axis.
When the shaft center and the metal stay 70 are electrically connected, the metal stay 70 is charged with the same sign as the shaft center. Since the metal stay 70 is in contact with the cloth 7, the electric charge of the cloth 7 is neutralized, and as a result, electric charge is not accumulated in the metal shaft center enough to break air insulation.

Similar results can be obtained by grounding the leg 2 instead of connecting the axis of the lower roll 31 of the main body 3 to the metal stay 70. FIG. 7 is an explanatory diagram showing an example in this case. A spring 72 fitted on the metal shaft of the lower roll 31 is connected to the metal leg 2 by a ground conductor wire 73. As a result, the charge is released to the ground through the conductor wire 73 before the charged level of the charged static electricity of the lower roll 31 is increased, so that a sharp pulse-like discharge current is not generated, and electromagnetic noise caused by the discharge current is not generated. A malfunction of the microcomputer mounted control device of the gluing machine due to the influence does not occur. In this case, the metal axis of the upper roll 61 may be similarly grounded to the metal structure instead of the lower roll 31.

[0022]

As described above, according to the present invention, the sheet-like wall covering material drawn into the main body by a pair of pinch rolls is guided to a predetermined path by a plurality of rolls, and the glue in the glue tub in the main body is provided. Is continuously transferred to one surface of the wall covering material by a gluing roll, since at least one of the pinch rolls is provided with antistatic means, the charge is removed before the charging level becomes high. This has the effect that the microcomputer mounted control device of the gluing machine does not malfunction.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an automatic wallpaper gluing machine equipped with a motor according to an embodiment of the present invention.

FIG. 2 is a side view showing a configuration of a glue tub and a roll structure which are main parts of the gluing machine of the preceding figure.

FIG. 3 is a plan view corresponding to an arrow AA in FIG. 2;

FIG. 4 is a view taken in the direction of arrows BB in FIG. 2;

FIG. 5 is a view taken in the direction of arrows CC in FIG. 3;

FIG. 6 is an explanatory view showing a spring that electrically connects a pinch roll and a metal stay.

FIG. 7 is an explanatory diagram showing an example in which charged static electricity is grounded to a leg.

[Explanation of symbols]

1: Automatic wallpaper gluing machine, 2: Leg, 3: Built-in glue tub,
4 cross rolls, 5: cross support, 6: upper lid, 8: motor, 30a, 30b, 60a, 60b: frame side plate, 31: lower roll, 32: gluing roll, 33: doctor roll, 34: leveling roll, 35: glue roll,
36: cutter guide groove, 37a, 37b: ball bearing, 61: upper roll, 62: press roll, 63: drive roll, 64: rotary encoder, 65: operation panel, 66a, 66b: press angle adjusting link, 70: metal Stay, 71: Spring, 72: Spring ring,
73: ground conductor wire.

Claims (2)

(57) [Scope of request for utility model registration] 1. A sheet-like wall covering material drawn into a main body by a pair of pinch rolls is guided to a predetermined path by a plurality of rolls, and a paste in a glue tub in the main body is glued to the wall covering material by a gluing roll. A wallpaper gluing machine that transfers the image to one surface of the pinch roll at least one of the pinch rolls.
The metal shaft center and the wall covering on the upstream side of the pinch roll.
From the connecting means that electrically conducts to the metal stay in contact
An automatic sizing machine comprising antistatic means. 2. A pair of pinch rolls for pulling into a main body.
The rolled sheet-shaped wall covering is rolled in a predetermined
While guiding to the road, the glue in the glue tub
Glue wallpaper that is continuously transferred to one surface of the wall covering material
A pinch roll on at least one of the pinch rolls
Grounding hand that grounds the metal shaft center of the
An antistatic means including a step, wherein the grounding between the metal axis of the pinch roll and the metal structure is
With a C-type spring ring that can be fitted to and removed from the metal shaft
An automatic gluing machine characterized by being performed .