JP2003033697A - Coating apparatus for exterior plate for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating apparatus for an exterior plate for building by which a water proofagent is excellently applied on the back surface of a base plate of an external plate, even if there is warp or up-and-down vibration in the transportation, by bringing a coating roll into sure contact with the base plate over the whole back surface area. SOLUTION: In the coating apparatus for the external plate for building, which is provided with a transporting line for transporting downward the base plate 1 of the external plate mainly composing of cement to face the back surface 3 and a coating roll 10 for applying the waterproof agent 6 to the bask surface 3 of the base plate 1 transported along the transporting line, a finishing roll 8 for leveling the waterproof agent 6 applied to the back surface 3 of the base plate 1 is provided in the transporting line and a soft coating roll 7 softer than the finishing roll 8 is provided in the upper side than the finishing roll 8 in the transporting direction of the transporting line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport line for transporting a substrate of an exterior plate whose main component is cement with its back surface facing downward, and a waterproofing agent for the back surface of the substrate transported along the transport line. The present invention relates to a coating facility for a building exterior plate, which is equipped with a coating roll for coating.

[0002]

2. Description of the Related Art Building exterior plates mainly made of cement include roofing materials and wall materials, and even if they are on the back side, they may come into contact with rainwater. It has been practiced to apply a waterproofing agent to the above with a coating roll. The coating equipment for that is (a) in FIG.
As shown in (b), a transport line 4 for continuously transporting a large number of substrates 1 with their back surfaces 3 facing downward is provided, and below the transport line 4, a liquid tank 5 for storing a liquid waterproofing agent 6 is provided. And the coating roll 1 including an iron roll 13 that is rotatably driven between the transport line 4 and the liquid tank 5 and a squeezing roll 14.
5, the lower part of the coating roll 15 is dipped in the waterproofing agent 6, and the back surface 3 of each substrate 1 is covered by the coating roll 15.
It is known that the waterproof agent 6 is applied to the.

In this conventional apparatus, the coating roll 15 is
A roll made of a sponge in which a hard sponge is wound around an iron core, and as shown in FIG. 5A, only one roll is arranged on the lower side of the iron roll 13 in the transport direction, As shown in (b) of FIG. 5, there are two rolls arranged, but in any of the devices, the coating roll 15
However, it was composed of a relatively hard roll using a hard sponge.

[0004]

However, in the case of the substrate 1 of the exterior plate containing cement as a main material, the substrate 1 may be warped due to a dry state or the like. The warping is shown in FIG. , (B), it often occurs along the lateral width d direction of the substrate 1. In addition, even if no warp occurs, when it is transported along the transport line 4,
The substrate 1 may vibrate up and down. Therefore,
If the coating roll 15 is hard as in the conventional case and the substrate 1 is warped or vibrates vertically during transportation, the coating roll 15 does not surely contact the entire area of the back surface 3 of the substrate 1 and the waterproofing agent 6 However, there is a drawback that uneven coating occurs.

The present invention focuses on such a conventional defect, and its purpose is to vibrate vertically even when the substrate of the exterior plate is warped and when it is conveyed along the conveyance line. Another object of the present invention is to provide a coating equipment for an exterior board for construction, which enables the coating roll to be more surely brought into contact with the entire area of the back surface of the substrate, and which can favorably apply the waterproofing agent to the back surface of the substrate.

[0006]

[Structure] As a characteristic structure of the invention of claim 1, as shown in FIGS. 1 to 4, a substrate 1 of an exterior plate mainly made of cement is provided with its rear surface 3 downward. A coating equipment for a building exterior plate, which is provided with a transport line 4 for transporting toward and a coating roll 7, 7a for coating the back surface 3 of the substrate 1 transported along the transport line 4 with a waterproofing agent 6. Then, a finish roll 8 that evenly finishes the waterproofing agent 6 applied to the back surface 3 of the substrate 1 is provided in the transport line 4, and on the transport direction upper side of the transport line 4 than the finish roll 8. It is where soft coating rolls 7 and 7a that are softer than the finishing roll 8 are provided.

The feature of the invention of claim 2 is, as illustrated in FIGS. 1, 2 and 4, that the finishing roll 8 is in contact with the outer circumference of the finishing roll 8 and adheres to the finishing roll 8. It is provided with a squeeze roll 9 for squeezing 6.

As shown in FIG. 2, the coating roll 7 and the finishing roll 8 have a lateral width D which is longer than the lateral width d of the substrate 1 as viewed in the carrying direction. Where it is.

As described above, the reference numerals are given for the sake of convenience in comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Operations and Effects] According to the characterizing feature of the invention of claim 1, a finishing roll for evenly finishing the waterproofing agent applied to the back surface of the substrate of the exterior plate mainly made of cement,
It is provided on the transfer line of the substrate, and since the coating roll is provided on the upstream side of the finishing roll in the transport direction of the transfer line, even if a coating agent is applied to the back surface of the substrate with a necessary amount of waterproofing agent or more, The finishing roll located on the lower side in the carrying direction removes a part of the waterproofing agent while smoothing the applied waterproofing agent, and finishes the back surface of the substrate beautifully. And as the coating roll, since a softer coating roll that is softer than the finishing roll is provided, even if the substrate is warped or vibrates up and down a little during transportation, the softer coating roll is soft. But,
The entire area of the back surface of the substrate will be reliably contacted, and more than the required amount of waterproofing agent will be applied. By the action of the finishing roll described above, it is possible to apply an appropriate amount of waterproofing agent over the entire area of the back surface of the substrate Become.

According to the second aspect of the present invention, the finishing roll is provided with the squeezing roll that comes into contact with the outer circumference of the finishing roll and squeezes out the waterproof agent adhering to the finishing roll. The waterproofing agent attached to the outer periphery of the finishing roll at this time is reliably squeezed by the squeezing roll, and the back surface of the substrate can be finished thereafter as desired.

According to the characterizing feature of the invention of claim 3, the coating roll and the finishing roll have a lateral width which is longer than the lateral width of the substrate when viewed in the transport direction of the transport line, so that the substrate can be stably transported. Thus, it is possible to surely apply the waterproof agent to the back surface of the substrate and finish it by smoothing the waterproof agent.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the coating equipment for building exterior boards according to the present invention will be described with reference to the drawings. There are roofing materials, wall materials, etc. as building exterior boards,
For example, in the case of a roofing material, as shown in FIG. 2, a substrate 1 of a roofing material containing cement as a main material is formed in a pentagonal shape in a plan view. This pentagonal substrate 1 is subjected to undercoating and topcoating on a front surface 2 facing upward by a surface coating facility (not shown), and also on a back surface 3 facing downward.
And the waterproofing agent is applied by the back side coating equipment shown in FIG.

This backside coating facility has a transfer line 4 for continuously transferring a large number of substrates 1 with their backsides 3 facing downward.
As shown in detail in FIG. 1, a liquid tank 5 for a waterproof agent having an upper opening is provided below the transport line 4, and a liquid waterproof agent 6 such as a liquid acrylic type or silane type is provided.
Is stored, and the viscosity and water level of the waterproofing agent 6 are maintained substantially constant by a control device (not shown). Between the transfer line 4 and the liquid tank 5, along the transfer line 4,
Two molding rolls 7 as coating rolls and two sponge rolls 8 as finishing rolls are provided, and the two sponge rolls 8 are each provided with a squeezing roll 9.

Each of the molding rolls 7 has an iron core 10.
And the fiber material 11 wound around the iron core 10, and the waterproof agent 6 is sufficiently applied to the back surface 3 of the substrate 1, so that the waterproof material 6 is relatively soft and sufficiently absorbs the waterproof agent 6. Then, a part of the lower part thereof is dipped in the waterproof agent 6. The sponge roll 8 is composed of an iron core 10 and a hard sponge 12, and since the waterproofing agent 6 sufficiently applied to the back surface 3 of the substrate 1 is evenly finished by the two molding rolls 7, it is compared with the molding roll 7. The sponge roll 8 is also quite hard, and the lower part of the sponge roll 8 is also immersed in the waterproof agent 6. The squeeze roll 9 is a roll made of metal and is disposed on the front side in the transport direction of each sponge roll 8, and each squeeze roll 9 comes into contact with the outer periphery of the sponge roll 8 and the waterproof agent 6 attached to the sponge roll 8. Is configured to squeeze out.

Then, in the transfer line 4 for transferring the substrate 1, the two molding rolls 7 are arranged on the upper side in the transfer direction, and the two sponge rolls 8 provided with the squeeze roll 9 are two. The molding rolls 7 and the sponge rolls 8 are arranged on the lower side in the transport direction than the molding rolls 7 and are configured to be rotationally driven in the arrow directions in the drawing by a driving device (not shown). The roll 9 is configured to rotate freely by contacting with the sponge roll 8. The molding roll 7 and the sponge roll 8 have a lateral width D that is longer than the lateral width d of the substrate 1 when viewed in the carrying direction of the carrying line 4.
However, the squeeze roll 9 is configured such that its lateral width is slightly longer than the lateral width D of the sponge roll 8.

According to this coating facility, a large number of substrates 1 are
Each substrate 1 is continuously transported along the transport line 4, and on the upstream side in the transport direction, each of the substrates 1 is moved by the two molding rolls 7.
A waterproofing agent 6 is applied to the back surface 3 of the. Each mall roll 7
Is configured so as to be soft and sufficiently absorb the waterproofing agent 6, and therefore, even if the substrate 1 is warped, the back surface 3 of the substrate 1 is bent, as shown in (a) and (b) of FIG. Therefore, the waterproof agent 6 is sufficiently applied to the entire surface of the substrate 1, in other words, the waterproof agent 6 is applied in an amount more than necessary over the entire back surface 3 of the substrate 1. Then, as shown in FIGS. 3C and 3D, two sponge rolls 8 are provided on the lower side in the transport direction.
Acts on the back surface 3 of each substrate 1 to remove a part of the waterproofing agent 6 applied in an amount more than necessary, and evenly finishes the entire back surface 3 to adhere to the outer periphery of the sponge roll 8. The waterproofing agent 6 is squeezed out by the squeeze roll 9 that contacts the outer circumference of each sponge roll 8.

[Another Embodiment] (1) In the above embodiment, an example in which the two molding rolls 7 and the two sponge rolls 8 are used is shown. Can be changed as appropriate, and can also be implemented by using one or more molding rolls 7 and one or more sponge rolls 8.
Further, although an example in which the lateral width D of the molding roll 7 and the sponge roll 8 is made longer than the lateral width d of the substrate 1 is shown, the molding roll 7 and the sponge roll 8 are constituted by unit rolls shorter than the lateral width d of the substrate 1. You can also

For example, the molding roll 7 will be described as an example. As shown in FIG. 4, the three unit molding rolls 7a having a lateral width d1 shorter than the lateral width d of the substrate 1 in the plan view of the transportation line 4 are transported. It can also be carried out by arranging in a direction orthogonal to the conveying direction of the line 4 and symmetrically with respect to the conveying center line of the conveying line 4, and the number of unit molding rolls 7a is particularly 3 Not limited to books, 2 or 4 or more unit molding rolls 7
a. However, in that case, the end portions of the unit molding rolls 7a overlap with each other when viewed in the transport direction of the transport line 4, and the overall lateral width of the unit molding rolls 7a is the same as in the previous embodiment. It is necessary to configure the same as the lateral width D of the substrate 7, that is, longer than the lateral width d of the substrate 1.

(2) The above embodiment shows an example in which a part of the lower portion of the sponge roll 8 is dipped in the waterproof agent 6 and the squeezing roll 9 is arranged on the front side of the sponge roll 8 in the conveying direction. However, the sponge roll 8 can be configured so as to be positioned completely above the liquid surface of the waterproof agent 6, and in that case, the squeeze roll 9 does not necessarily have to be provided,
It can also be carried out without the squeezing roll 9. However, when the lower part of the sponge roll 8 is configured to be immersed in the waterproofing agent 6, it is preferable to provide the squeeze roll 9, but instead of the squeeze roll 9, for example, a plate-shaped scraper or the like. Alternatively, the waterproof agent 6 attached to the outer circumference of the sponge roll 8 may be removed. In addition, as an example of the coating roll, the molding roll 7 in which the fiber material 11 is wound around the iron core 10 is shown.
The coating roll can also be configured by a sponge roll in which a soft sponge is wound around the iron core 10, and various modifications can be made to the specific configurations of the coating roll and the finishing roll.

[Brief description of drawings]

[Fig. 1] Vertical side view of coating equipment for building exterior panels

[Figure 2] Plan view of the coating equipment for building exterior boards

FIG. 3 is a front view of the main part showing the operation of the coating equipment for the building exterior plate.

FIG. 4 is a plan view of a coating facility for a building exterior plate according to another embodiment.

FIG. 5 is a plan view showing a conventional coating equipment for building exterior plates.

FIG. 6 is a front view showing the operation of a conventional coating equipment for exterior plate for building.

[Explanation of symbols]

1 substrate 3 Back side of substrate 4 Conveyor line 6 waterproofing agent 7,7a coating roll 8 finishing rolls 9 Squeeze roll D Width of coating roll and finishing roll d Board width

Continued front page    (72) Inventor Ichiro Kinmori             1 share at 2 Takamatsu, Kosai Town, Koga District, Shiga Prefecture             Kubota Shiga Factory F-term (reference) 4F040 AA02 AA19 AB20 AC01 BA12                       BA16 CB01 CB02 CB36                 4F042 AA17 AB00 CC07 DD04 DD09                       DD18 DF15

Claims (3)

[Claims] 1. A transport line for transporting a substrate of an exterior plate whose main component is cement with its back surface facing downward, and a coating roll for applying a waterproofing agent to the back surface of the substrate transported along the transport line. In the coating equipment of the exterior plate for construction comprising, a finishing roll that evenly finishes the waterproofing agent applied to the back surface of the substrate is provided in the transport line, and the finishing line of the transport line is better than the finishing roll. A coating equipment for building exterior boards, which is provided with a softer coating roll that is softer than the finishing roll on the upstream side in the transport direction. 2. The coating equipment for a building exterior plate according to claim 1, wherein the finishing roll is provided with a squeezing roll that comes into contact with an outer periphery of the finishing roll to squeeze out the waterproofing agent adhering to the finishing roll. 3. The coating equipment for a building exterior plate according to claim 1, wherein the coating roll and the finishing roll have a width that is longer than a width of the substrate when viewed in the transport direction.