JPH09141177A - Sizing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the application amount of a sizing agent at an edge part and any position in width direction of a sheet-like material by installing a sizing agent amount adjusting means in either one of a sizing agent application roll and a doctor roll, wherein the adjusting means is to adjust the application amount of the sizing agent in the width direction at the time of applying it to the sheet-like material. SOLUTION: In a sizing mechanism to apply a sizing agent to a sheet-like material by applying the sizing agent in a sizing agent container to a sizing agent applying roller 1 and adjusting the application amount by a doctor roll, the amount to be applied is adjusted in the width direction at the time of applying the sizing agent to a sheet-like material. As the sizing agent amount adjusting means, groove parts 2 with different depths are formed in the surface of the applying roll 1 and the depth of each of the groove parts 2 is made to differ in the width direction of the sheet-like material. For example, the depth is made gradually shallower toward the center part from the end part. Consequently, a more amount of the sizing agent is applied easily to any optical position in the width direction of the sheet-like material, e.g. both end parts of the sheet-like material, and cleavage formation (cracking of the end parts of the sheet-like material) after drying hardly occurs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gluing machine. More specifically, the present invention relates to a new gluing machine useful for automatically gluing long sheet materials such as wallpaper sheets and fusuma paper sheets.

[0002]

2. Description of the Related Art Conventionally, a gluing machine capable of gluing a sheet-shaped material such as a long-sized wallpaper sheet manually or automatically has been known. For example, as shown in the outline of FIG. 6, this gluing machine uses glue (a) placed in a glue container (a) through a glue raising roll (c) that is used as needed, or directly. The adhesive (a) is adhered to the surface of the gluing roll (d), and the adhered adhesive (a) is glued to the back surface of the sheet-shaped material (e), etc. , A doctor roll (k) is provided, and a function of setting a gap (t) between the doctor roll (k) and the gluing roll (d) to a required value is provided.

That is, in the conventional gluing machine, the amount of gluing to a sheet material such as wallpaper is set uniformly by adjusting the gap between the doctor roll (f) and the gluing roll (d) as described above. Considered to be glued. In order to make this adjustment possible, the gluing roll (d) and the doctor roll (f) each have a uniform outer surface diameter. Further, the one having a groove portion with a constant depth and pitch provided on the surface thereof is also used.

As described above, even the conventional gluing machine is devised so that the amount of gluing to the sheet-shaped material (e) can be adjusted. However, in reality, when the glue (a) attached to the gluing roll (d) is squeezed by the doctor roll (k) to a predetermined glue thickness, the force of the glue pressure is applied, and when the gluing speed increases, the doctor roll (k) ), The gap between the center and the gluing roll (d) becomes slightly larger,
The amount of glue also tends to be thin at both ends of the sheet-like material (e) and thick at the center.

[0005] In order to deal with such a tendency, partitioning is provided in the glue box, and thicker glue is put in the left and right sides so that glue thicker than the central portion is glued. Has been devised, but additional equipment is required,
It becomes structurally complicated. In addition, the strength of the doctor roll must be increased in order to make it a roll that does not bend due to glue pressure.

The fact that the amount of gluing becomes smaller at both end portions of the sheet-like material (e) than in the central portion as described above is from the viewpoint of the actual work of attaching the sheet-like material (e) to the wall surface or the like. Is not very desirable. This is because, during the pasting work, the sheet-shaped material is glued and then the multiple sheets are folded, but at this time the left and right edges are dried, and if left unattended, the glue is replenished to the dried portion at the time of pasting. This is because it is necessary to attach the guard tape to the base or replenish the adhesive.

This situation is the same when a cut tape or the like is used together with the sheet-shaped material, and the tape is likely to be glued. That is,
If the amount of glue at the end is too small, the glue will be sucked up by the wall surface or tape, causing adhesive failure, and if the operator holds the end with his / her finger at the time of sticking, the amount of glue at that part will be lost. There was an inconvenience that it would end up.

[0008] From the above problems in sticking work, it is desirable that the glue is thicker at the ends of the sheet-like material (e) than at the center thereof. However, although the conventional gluing machine has a function of adjusting the amount of gluing to the sheet-shaped material, actually it tends to be thicker in the central part as described above, and the width direction of the sheet-shaped material is It has not been realized to thicken the edges of the.

Further, not only is the both ends to have a thicker amount of glue, but since temporary attachment is performed when attaching the sheet-like material to the wall surface, etc., this temporary attachment is required depending on the situation of the construction site. It is sometimes desired to attach more glue to the sheet-shaped material at a predetermined widthwise position. For example, it may be desirable to paste a little more inside than at both ends thereof.

Therefore, regarding the gluing machine, it is possible to realize a technical means capable of more effectively adjusting the amount of gluing adhesive at the end of the sheet-shaped material and further at any position in the width direction of the sheet-shaped material. Was desired.

[0011]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and allows a larger amount of glue to be adhered at an arbitrary position in the width direction of a sheet-shaped material, for example, glue at the end thereof. The purpose of the present invention is to provide a new sizing machine capable of increasing the amount of the sizing agent more than the central portion. That is, the present invention relates to a gluing machine for adhering the gluing in a gluing container to a gluing roller, and gluing the sheet-shaped material by adjusting the gluing amount with a doctor roll, in at least one of the gluing roll and the doctor roll. Provided is a gluing machine (claim 1), characterized in that a gluing amount adjusting means for adjusting the gluing amount in the width direction when gluing the sheet-shaped material is applied.

The present invention also provides a gluing machine provided with a glue amount adjusting means for adjusting the amount of glue at both ends in the width direction of the sheet-shaped material to be larger than that at the central portion (claim 2). To do. And more specifically, this invention also provides the following aspects as the above-mentioned gluing machine. <A> At least one roll surface of the gluing roll and the doctor roll is provided with groove portions having different depths in the width direction of the sheet-shaped material as a glue amount adjusting means, and a roll surface having a deeper groove portion is provided. , Holding a larger amount of glue,
A gluing machine for gluing.

<B> At least one roll surface of the gluing roll and the doctor roll is provided with groove portions having different pitches in the width direction of the sheet material as a glue amount adjusting means, and groove portions having a smaller pitch are provided. A gluing machine that holds a larger amount of glue on the roll surface and pastes. <C> At least one roll surface of the gluing roll and the doctor roll is provided with groove portions having different depths and different pitches in the width direction of the sheet-shaped material as means for adjusting the glue amount. A sizing machine that holds a larger amount of sizing on the surface of the roll where is provided.

<D> At least one roll surface of the gluing roll and the doctor roll is provided with a step or taper in the width direction of the sheet material as a glue amount adjusting means.
On a roll surface with a smaller roll diameter, a gluing machine that holds a larger amount of glue and pastes. <E> At least one roll surface of the gluing roll and the doctor roll is provided with a groove arrangement portion and a flat portion in the widthwise direction of the sheet-shaped material as a means for adjusting the amount of glue, and the groove arrangement portion is provided. A gluing machine that holds a larger amount of glue on the roll surface and pastes.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention has the characteristics as described above. However, the entire structure of the gluing machine itself is arbitrary including various conventionally known ones. In any case, it is an essential requirement that the glue amount adjusting means is applied to at least one of the gluing roll and the doctor roll as described above.

More specifically, the embodiments of the present invention will be described in more detail with reference to examples.

[0017]

EXAMPLE FIG. 1 shows an example in which a groove portion having different depths is provided on the surface of a sizing roll (1) as one of the sizing roll and a doctor roll as a sizing amount adjusting means. In this case, for example, a sizing roll having an outer diameter of 86 mm and a length of 1050 mm, which is one of conventional specifications,
A doctor roll having an outer diameter of 26.5 mm and a length of 1052 mm has a constant pitch of 1 mm and a depth of 0.3 mm, and has a constant pitch of the groove portions (2) as compared with a roll provided with a groove portion having a constant depth. Even if the groove (2)
In the width direction of the sheet-shaped material, and this example is characterized in that the depth of the groove (2) is shallowed from the end to the center. This depth is gradually or gradually reduced.

The groove portion (2) can be formed by, for example, groove processing as a normal machining or knurling. Actually, for example, as shown in the example of FIG. 1, by processing the groove (2) in the central portion of the gluing roll (1) to be shallower by about 0.1 mm than the left and right ends, the doctor roll can be processed. (3) and gluing roll (1)
Even if they are arranged so that the clearance (t) between them is the same, at both ends, glue equal to or more than that in the central portion is retained on the roll surface and glued to the sheet material. You can

Of course, also in this case, the gap (t) between the gluing roll (1) and the doctor roll (3) as in the conventional case.
By changing, the total amount of glue will be adjusted.
As a result, the deviation of the amount of glue between the central portion and the end portion of the sheet-shaped material due to the deflection of the roll, which was inevitable in the past, is eliminated,
Furthermore, the amount of gluing glue at the end can be increased in consideration of the work of sticking the sheet-shaped material by the operator.

Of course, the above example shows the difference between the central portion and the both end portions and the arrangement of the groove portions (2) on the surface of the gluing roll (1), but the groove portions (2) having different depths are shown.
May be configured such that a large amount of glue is glued to an arbitrary position in the width direction of the sheet-shaped material, for example, a required position in consideration of temporary attachment, or instead of the glue roll (1), a doctor roll ( It may be provided on the surface of 3) or on both.

Unlike the example of FIG. 1, FIG. 2 shows an example in which the groove depth is constant and the pitch of the grooves is changed to increase the pitch from the roll end toward the center. There is.
Also in this case, the groove portion (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 both surfaces. The same effect as that of FIG. 1 can be obtained.

In the examples of FIGS. 1 and 2, the depth of the groove (2), the size of the pitch, and the shape of the groove (2) depend on the gluing roll (1) and the doctor roll (3). It is not necessary to say that it can be determined in consideration of the gap (t) between the sheet and the sheet-shaped material. FIG. 3 shows another example of the gluing roll (1).
An example is shown in which a step is provided on the surface so that the outer diameter of the roll at the end is smaller than at the center. FIG. 4 (a)
(B) shows an example in which a taper is provided instead of the step. In any case, instead of the sizing roll (1),
Alternatively, at the same time, the doctor roll (3) may be provided with a step or a taper.

In any case, the amount of glue that is equal to or larger than the central portion of the sheet-shaped material can be glued to both ends. Then, the step or taper may be arranged so that a larger 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 such that both ends are thinner by 0.1 to 0.3 mm than the central part, this causes the gap between the central part and the gluing roll to be reduced. The gap between both ends can be widened by 0.05 to 0.15 mm, the amount of glue is retained more at both ends, and even if the doctor roll bends, the amount of glue applied to the sheet-shaped material at the center can be made equal. Moreover, it becomes easy to attach more. of course,
The above figures are not limiting in any way.

In FIG. 5, the surface of the gluing roll (1) and the flat portion (30) with the groove (2) are provided.
An example divided into and is shown. Groove (2) is grooved,
It may be formed by knurling or the like. As in the above example, the amount of gluing can be adjusted. In addition,
The present invention is not limited to the above examples. The glue amount adjusting means may be configured by appropriately combining the above respective examples. Further, although a separate member is required, it may be combined with a conventionally used means such as a partition in the glue box.

[0025]

As described in detail above, according to the present invention, it is possible to increase the amount of glue at any position in the width direction of the sheet material to be glued. For example, more glue is applied to both ends of the sheet material. It becomes easy to glue the amount. In addition, by adhering a larger amount of glue to both ends, it is dried and the openings are opened (peeling off the edges of the sheet material).
Can be made less likely to occur and the construction can be stabilized, and moreover, even if the operator holds the end portion with his / her fingers, the trouble is less likely to occur.

[Brief description of the drawings]

FIG. 1 is an enlarged plan view of an essential part showing a case having a groove as an example of the present invention.

FIG. 2 is an enlarged plan view of an essential part showing another example different from 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 a main part showing an example in which each has a taper.

FIG. 5 is a plan view of an essential part 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 (7)

[Claims] 1. In a sizing machine for adhering the sizing in a sizing container to a sizing roll, adjusting the sizing amount with a doctor roll and sizing the sheet-shaped material, at least one of the sizing roll and the doctor roll is A gluing machine, characterized in that a gluing amount adjusting means is provided for adjusting the gluing amount in the width direction when gluing the sheet-shaped material. 2. The gluing machine according to claim 1, further comprising a glue amount adjusting means for adjusting the amount of glue at both ends of the sheet material in the width direction to be larger than that at the central portion. 3. A roll provided with groove portions having different depths in the width direction of the sheet-shaped material as a glue amount adjusting means on the roll surface of at least one of the gluing roll and the doctor roll. The gluing machine according to claim 1 or 2, wherein the gluing is performed while holding a larger amount of gluing on the surface. 4. At least one roll surface of the gluing roll and the doctor roll is provided with groove portions having different pitches in the width direction of the sheet material as means for adjusting the amount of glue, and groove portions having a smaller pitch are provided. The gluing machine according to claim 1 or 2, wherein the gluing is performed while holding a larger amount of gluing on the roll surface. 5. Grooves having different depths and different pitches in the width direction of the sheet-shaped material are provided on the roll surface of at least one of the gluing roll and the doctor roll as means for adjusting the amount of glue, to provide deeper and smaller pitches. The gluing machine according to claim 3, wherein the gluing is performed while holding a larger amount of gluing on the roll surface provided with the groove portion. 6. A roll surface of at least one of the sizing roll and the doctor roll is provided with a step or taper in the width direction of the sheet-shaped material as means for adjusting the amount of paste, and a roll surface having a smaller roll diameter has a larger number of steps. The gluing machine according to claim 1 or 2, which holds the amount of gluing of No. 1 and pastes. 7. A groove arrangement portion and a flat portion are provided separately on the roll surface of at least one of the gluing roll and the doctor roll in the width direction of the sheet-shaped material as means for adjusting the amount of glue, and the groove arrangement is provided. The sizing machine according to claim 1 or 2, wherein a larger amount of sizing is held and sizing is performed on the roll surface of the installation portion.