JPS6234624Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a wallpaper gluing machine, which is used to apply glue to the back side of wallpaper or fusuma paper to be pasted on walls and ceilings in buildings. .

(Prior art) As a wallpaper gluing machine, Japanese Utility Model Publication No. 52-52061 discloses a wallpaper gluing machine, in which a pressure roller is provided above the gluing roller and the leveling roller in front of the gluing roller. The wallpaper running in contact with each upper surface is pushed downward by the pressure roller and bent.
Moreover, there has been disclosed a wallpaper in which the wallpaper is brought into pressure contact with the surface of the gluing roller so that the pressure roller does not come into contact with the gluing roller, and the feed roller and the leveling roller are rotated at a higher speed than the gluing roller.

(Problems to be solved by the invention) The conventional wallpaper gluing machine described above sets the position of the presser roller by raising and lowering it along a straight line passing approximately halfway between the gluing roller and the leveling roller. Therefore, by adjusting the gap between the press roller and the gluing roller, the gap between the press roller and the leveling roller was also changed. Therefore, for example, if the wallpaper is thin and the pressure roller is moved closer to the gluing roller in order to increase the contact angle of the wallpaper with the gluing roller and increase the amount of glue applied, the distance between the presser roller and the leveling roller will decrease. The problem is that as the wallpaper gets closer, the contact angle of the wallpaper with the smoothing roller also increases, and as a result, more glue is scraped off from the wallpaper by the smoothing roller, and the effect of increasing the contact angle between the glue roller and the wallpaper is lost. It was hot. Note that instead of moving the presser roller, it is possible to increase the degree of contact by providing a second presser roller behind the gluing roller, but in this case, the number of parts such as the second presser roller and its bearings will increase. , there is a disadvantage that the structure becomes complicated. In addition, once the position of the pressing roller is set, the position is fixed from then on, so if the wallpaper to be glued has unevenness due to variations in thickness, In some areas, the gap with the gluing roller becomes smaller, increasing the amount of glue that sticks to the wallpaper, and in areas where the wallpaper is thinner, the amount of glue that sticks to the wallpaper decreases.

This invention does not require a second pressing roller behind the gluing roller, and even if the contact angle of the wallpaper with the gluing roller is changed, the contact angle of the wallpaper with the leveling roller hardly changes. The contact angle with the gluing roller is automatically changed in accordance with the change.

(Means for solving the problem) Wallpaper A running in contact with the upper surfaces of the above-mentioned gluing roller 3 and the leveling roller 5 is placed upward between the gluing roller 3 and the leveling roller 4 in front thereof, facing downward. In a wallpaper gluing machine equipped with a pressing roller 7, the pressing roller 7 is supported between the tips of left and right swinging levers 5, and the swinging direction of the pressing roller 7 is aligned with the support shaft 6 of the swinging lever 5. A biasing means 8 is positioned so as to be substantially perpendicular to a straight line connecting the center of the leveling roller 4, and biases the press roller 7 in the direction of the gluing roller 3; A stopper 10 is provided to prevent contact between the roller 7 and the gluing roller 3.

(Function) Since the press roller 7 swings in a direction substantially perpendicular to the straight line connecting the support shaft 6 of the swing lever 5 and the center of the leveling roller 4, the swing of the press roller 7 causes the press roller 7 and the glue to When the gap with the attachment roller 3 is changed, the gap between the press roller 7 and the leveling roller 4 hardly changes. Therefore, the press roller 7 is moved closer to the gluing roller 3 and the gluing roller 3 is moved closer to the gluing roller 3.
Even if the contact angle of the wallpaper A with the leveling roller 4 is increased, the contact angle of the wallpaper A with the leveling roller 4 hardly changes. In addition, since the press roller 7 is not fixed at a fixed position but is urged in the direction of the gluing roller 3, the press roller 7 swings up and down according to changes in the thickness of the wallpaper A, and the wallpaper The pressure roller 7 moves upward in the thick part of wallpaper A and downward in the thin part of wallpaper A to control the contact angle of wallpaper A to be almost constant, and adjust the amount of glue applied on the back side of wallpaper A to
to be almost uniform regardless of the thickness.

(Example) In the drawings, a sizing roller 2 and a sizing roller 3 are arranged in order from below in the center of a glue box 1, and in front of this sizing roller 3 is a leveling roller 4, and in front of the above sizing roller A pair of left and right swing levers 5 are provided above the levers 3, respectively. This swing lever 5 is
It is formed into a substantially triangular shape, and its central part is attached to a horizontal support shaft 6 so as to be able to swing vertically, and a shaft part 7a at both ends of a presser roller 7 is attached to the front end of the shaft.
is rotatably supported. A compression coil spring (biasing means) is attached to one end of the swing lever 5.
8 is pressed, the swinging lever 5 is urged in the direction of the glue roller 3, and the other end of the swinging lever 5 is attached to a bolt (stopper) 10 attached to a projection 9a of the frame by a lock nut 10a. Rotation in the clockwise direction (direction of the gluing roller 3) is restricted by contacting the tip. A doctor roller 11 is brought into contact with the rear surface of the gluing roller 3, and a pair of upper and lower feed rollers 12 and 13 are provided behind it.

In the above structure, the glue S is put in the glue box 1, and the wallpaper A is sequentially guided to the nip portion of the feed rollers 12 and 13, the upper surface of the gluing roller 3, the lower surface of the press roller 7, and the upper surface of the leveling roller 4. When A is fed forward (in the direction of arrow P), the glue S is supplied to the lower surface of the gluing roller 3 by the gluing roller 2, and the thickness of the glue on the surface of the gluing roller 3 is adjusted by the doctor roller 11. After that, this paste is transferred to the back surface of the wallpaper A, and is evenly smoothed by a leveling roller 4. In this embodiment, since the protruding length of the bolt 10 as a stopper can be adjusted, the gap between the presser roller 7 and the gluing roller 3 can be adjusted according to the thickness of the wallpaper A, and the presser roller 7 can The two can be brought close to each other without contacting the attached roller 3.

(Effects of the invention) This invention allows even if the gap between the pressing roller and the gluing roller is changed by changing the position of the pressing roller.
Since the gap between the press roller and the leveling roller hardly changes, if the press roller is brought closer to the gluing roller to increase the amount of glue transferred from the gluing roller to the wallpaper, the gap between the leveling roller This prevents the amount of glue peeled from the wallpaper from increasing, making it extremely easy to control the amount of glue applied. In addition, since the press roller is swingably provided and is biased in the direction of the gluing roller, the press roller swings in accordance with changes in the thickness of the wallpaper, thereby increasing the amount of glue transferred to the wallpaper. The thickness can be controlled to be almost uniform, and the gap between the presser roller and the gluing roller can be maintained at a certain size or more due to the presence of the stopper, so that the glue on the gluing roller can This prevents the wallpaper from adhering to the surface of the wallpaper.

[Brief explanation of the drawing]

The drawings are examples of this invention. 1: Glue box, 2: Gluing roller, 3: Gluing roller, 4: Leveling roller, 5: Swing lever, 6: Support shaft, 7: Holding roller, 8: Compression coil spring (biasing means), 10: Bolt (stopper), A:
wallpaper.

Claims (1)

[Scope of utility model registration request] In a wallpaper gluing machine, a press roller is provided at an upper intermediate position between the gluing roller and the smoothing roller in front of the gluing roller to press downward the wallpaper running in contact with the upper surfaces of the gluing roller and the smoothing roller. The press roller is supported between the tips of the left and right swing levers, and the press roller is positioned so that the swing direction of the press roller is substantially perpendicular to the straight line connecting the support shaft of the swing lever and the center of the leveling roller. A wallpaper paste application characterized in that a biasing means for biasing the press roller in the direction of the gluing roller and a stopper in contact with the swing lever to prevent contact between the press roller and the gluing roller are provided. Machine.