JP4045348B2 - Gluing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gluing machine. More particularly, the present invention relates to a new gluing machine useful for automatically gluing to a sheet material such as long wallpaper sheets and paper.
[0002]
[Prior art and its problems]
Conventionally, a gluing machine capable of gluing manually or automatically to a sheet-like material such as a long wallpaper sheet is known.
For example, as shown in FIG. 6, this gluing machine has a gluing roll (c) that is used in a gluing container (a) as needed, directly or directly through a gluing roll (c). In order to adjust the amount of gluing at the time of gluing, the gluing roll (d) is attached to the surface of the gluing roll (d) and the gluing (b) is glued to the back surface of the sheet-like material (v). A doctor roll (f) is provided, and a function of setting a gap (t) between the doctor roll (f) and the gluing roll (d) to a required one is provided.
[0003]
In other words, in the conventional gluing machine, the amount of gluing to the sheet-like material such as wallpaper is set uniformly by adjusting the gap between the doctor roll (f) and the gluing roll (d) as described above. Is taken into account. And in order to make this adjustment possible, the gluing roll (d) and the doctor roll (f) each have a uniform surface outer diameter. Further, a surface provided with a groove portion having a constant depth and pitch is also used.
[0004]
Thus, even a conventional gluing machine is devised as being capable of adjusting the amount of gluing to the sheet material (e).
However, in reality, when the glue (b) attached to the gluing roll (d) is squeezed to a predetermined gluing thickness by the doctor roll (g), the force of the gluing pressure is applied, and when the gluing speed increases, the doctor roll (cable) ), The gap between the center part and the glue roll (d) is slightly increased, and the amount of glue tends to be thin at both ends of the sheet material (e) and thick at the center part.
[0005]
For such a tendency, it is devised that the glue box is divided by a partition, and a thick paste is put on the left and right sides so that a thick paste is glued to the center. However, it requires additional equipment and is structurally complex. Moreover, if it is going to make a roll which does not bend by glue pressure, the intensity | strength of a doctor roll (female) must be raised.
[0006]
For example, as described above, it is less preferable from the viewpoint of the work of applying the actual sheet-like material (e) to the wall surface or the like that the amount of gluing is smaller than the center part at both ends of the sheet-like material (e). Not that. This is because, during pasting, the sheet material is glued and then the sheets are folded, but at this time it dries from the left and right ends, and if left too much, the glue is refilled in the dried part. This is because it is necessary to apply a guard tape to the ground or to replenish an adhesive.
[0007]
This is the same when a cut tape or the like is used together with the sheet-like material, and glue is easily taken on these tapes.
In other words, if the amount of glue at the edges is small, the glue will be absorbed by the wall or tape, causing adhesion failure, and if the operator holds the edges with fingers during application, the glue at that part will be lost. There was an inconvenience of being broken.
[0008]
In view of the problems in the pasting operation as described above, it is desirable that the paste is thicker at the end of the sheet-like material (e) than at the center. However, although the conventional gluing machine has a function of adjusting the amount of gluing to the sheet-like material, it actually tends to become thicker at the center as described above, and the width direction of the sheet-like material Gluing thicker at the edges of the wire has not been realized.
[0009]
In addition to making the both ends have a thicker amount of glue, the sheet-like material is temporarily attached to the wall surface, etc. Sometimes it is desirable to apply more glue to a given position in the width direction of the material. For example, it may be desirable to glue a little more inside than both ends.
[0010]
For this reason, with respect to the pasting machine, it is desired to realize technical means that can more effectively adjust the amount of adhesive paste at the end of the sheet-like material and further at any position in the width direction of the sheet-like material. It was.
[0011]
[Means for Solving the Problems]
The present invention solves the problems as described above, attaches glue in a glue container to a gluing roll, adjusts the gluing amount with a doctor roll, and glues it to a sheet-like material made of wallpaper or paper. in use gluing machine has a glue amount adjusting means glue amount in the width direction both end portions of the sheet material during gluing to the sheet material is adjusted to be larger than the central portion, the adhesive amount adjusting means As described above, the groove surface of the gluing roll provided at a constant interval (t) from the doctor roll has a cross-sectional shape that is an inverted triangle shape along the width direction, and grooves having different depths in the width direction . The distance between the apex positions corresponding to the deepest position in the width direction is constant, and each cross-sectional area of the groove part that can accommodate glue is gradually decreased from each end part in the width direction toward the center. Is formed to be fence, the deeper groove portion is provided with the roll surface, characterized in that it is held more glue amount, gluing the glue amount in the width direction both end portions and larger than the central portion seat Provide a gluing machine for shaped materials.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
The present invention has the features as described above, but the overall configuration of the gluing machine itself may be any one including various conventionally known ones, and in any case As described above, it is essential that at least one of the gluing roll and the doctor roll is applied with the glue amount adjusting means.
[0016]
More specifically, an embodiment will be described in more detail in the embodiment of the present invention.
[0017]
【Example】
FIG. 1 shows an example in which grooves having different depths are provided on the surface of a gluing roll (1) as one of a gluing roll and a doctor roll as gluing amount adjusting means.
In this case, for example, in a pasting roll having an outer diameter of 86 mm and a length of 1050 mm and a doctor roll having an outer diameter of 26.5 mm and a length of 1052 mm as one of the conventional specifications, a pitch of 1 mm and a depth of 0.3 mm is used. Even in the case where the pitch of the groove (2) is constant even when compared with a roll provided with a constant, constant depth groove, the depth of the groove (2) differs in the width direction of the sheet material, In this example, the depth of the groove (2) is reduced from the end toward the center. This depth is reduced gradually or stepwise.
[0018]
The groove portion (2) can be formed by, for example, groove processing as normal machining or knurling. Actually, for example, as shown in FIG. 1, the doctor roll is processed by making the depth of the groove (2) at the center of the gluing roll (1) shallower by about 0.1 mm than the left and right ends, for example. Even if it is arranged so that the gap (t) between (3) and the gluing roll (1) is the same, both ends are equivalent to the central part or more glue is held on the roll surface to form a sheet. It can be glued to the material.
[0019]
Of course, in this case as well, the entire amount of glue is adjusted by changing the gap (t) between the gluing roll (1) and the doctor roll (3) as in the prior art.
This eliminates the bias in the amount of glue at the center and end of the sheet material due to roll deflection, which was unavoidable in the past, and in addition, considering the work of attaching the sheet material by the operator, The amount of glue can be increased.
[0020]
Of course, the above example shows the arrangement of the groove portion (2) on the surface of the gluing roll (1) as the difference between the center portion and both end portions, but the groove portion (2) having different depths A larger amount of glue may be glued at an arbitrary position in the width direction of the shaped material, for example, a required position in consideration of temporary sticking. Instead of the glue roll (1), the doctor roll (3) You may make it provide in the surface or both.
[0021]
FIG. 2 shows an example in which, unlike the example of FIG. 1, the groove depth is constant, the pitch of the groove arrangement is changed, and the pitch is increased from the roll end toward the center.
In this case, the groove (2) may be provided not only on the surface of the gluing roll (1) but also on the surface of the doctor roll (3) or on both surfaces. The same effect as FIG. 1 is obtained.
[0022]
In the examples of FIGS. 1 and 2, the depth of the groove (2), the size of the pitch, and the shape thereof are determined between the gluing roll (1) and the doctor roll (3). It can be determined in consideration of the gap (t) and the amount of glue on the sheet-like material.
FIG. 3 shows an example in which a step is provided on the surface of the gluing roll (1) so that the outer diameter of the roll at the end is thinner than the center. 4A and 4B show an example in which a taper is provided instead of the step. In any case, a step or taper may be provided on the doctor roll (3) instead of or simultaneously with the gluing roll (1).
[0023]
In either case, an amount of glue equal to or greater than that of the central portion of the sheet-like material can be glued to both ends. Further, the step and the taper may be arranged so that a large amount of glue is held and glued at a required position in the width direction.
For example, when the diameter of the doctor roll is actually processed into a taper shape so that both ends are 0.1 to 0.3 mm thinner than the center portion, The gap between both ends can be widened by 0.05 to 0.15 mm, the amount of glue held at both ends can be increased, and even if the doctor roll is bent, the amount of glue on the sheet-like material at the center can be made equal. Furthermore, it becomes easy to attach more. Of course, the above numerical values are not limited at all.
[0024]
FIG. 5 shows an example in which the surface of the gluing roll (1) is divided into a part (20) provided with a groove (2) and a flat part (30). The groove (2) may be formed by grooving, knurling or the like. Similar to the above example, the amount of gluing can be adjusted.
The present invention is not limited to the above example. The paste amount adjusting means may be configured by appropriately combining the above examples. Furthermore, although another member is required, it may be combined with a conventionally used means such as a partition in a paste box.
[0025]
【The invention's effect】
As described in detail above, according to the present invention, the amount of glue at any position in the width direction of the sheet-like material to be glued can be increased, for example, a larger amount of glue can be glued to both ends of the sheet-like material. Etc. becomes easy.
In addition, by adhering a large amount of glue to both ends, it can be dried to make it less likely to cause openings after construction (peeling of the end of the sheet-like material), so that the construction can be stabilized. Even if a person holds the end part with a finger, it is difficult to cause trouble.
[Brief description of the drawings]
FIG. 1 is an enlarged plan view of a main part showing a case having a groove as an example of the present invention.
2 is an enlarged plan view of a main part showing an example different from FIG. 1. FIG.
FIG. 3 is a plan view of an essential part showing an example having a step.
4 (a) and 4 (b) are plan views of relevant parts showing an example having a taper, respectively.
FIG. 5 is a main part plan view showing still another example.
FIG. 6 is a cross-sectional view illustrating the basic configuration of the entire gluing machine.
[Explanation of symbols]
1 Gluing roll 2 Groove part 3 Doctor roll 20 Groove arrangement part 30 Flat part

Claims (1)

Depositing a glue in the glue container to the glue roll, the sheet-like material for a sizing machine for gluing a sheet-like member made of wallpaper sheets or Fusumashi by adjusting the amount of glue by the doctor roll, gluing to the sheet material glue amount in the width direction both end portions of the sheet-like material has a glue amount adjusting means adjusted to be larger than the central portion when, as the glue amount adjusting means, at regular intervals from the doctor roll (t) On the roll surface of the gluing roll provided, the cross-sectional shape along the width direction is an inverted triangle shape, and the groove portions having different depths in the width direction are located between the apex positions corresponding to the deepest position in the width direction of the adjacent groove portions. interval was constant, gradually shallower respectively toward the center from each end of the width direction, it is formed and as the cross-sectional area of the groove portion capable of accommodating the glue gradually decreases, respectively, deeper grooves The provided roll surface, to hold more glue amount, the sheet-like material for a sizing machine, characterized by gluing the glue amount in the width direction both end portions by more than the central portion.

Images