JP2003126758A - Apparatus for processing building board and apparatus for coating building board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for processing a building board in which the building board is precisely worked while being transported even when the building board is transported at high speed and an apparatus for coating the building board. SOLUTION: The apparatus 101 for processing the building board is provided with a 1st, a 2nd and a 3rd pulley 113, 114 and 133 and a processing means (coating drum) 150. A 1st timing belt 131 for transporting while positioning the building plate 190 by a positioning member 134 and having single tooth is set on the 1st and the 3rd pulleys 113 and 133. A 2nd timing belt 120 is set on the 2nd pulley 114. The processing means 150 has a 4th pulley 151 engaged with the 2nd timing belt 120 and the prescribe processing (coating) is applied on the travelling building plate 190 by the operation with them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building board processing apparatus and a building board coating apparatus for working a building board, and more particularly to a building board working apparatus and building board coating apparatus for working a building board while conveying the building board. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, there is known a building board processing apparatus for carrying a building board and processing the building board in synchronization with the carrying. For example, there is a building board coating device that transfers a building board and paints a predetermined pattern on the building board in synchronization with the carrying. In addition, for example, there is a building board laminator device that conveys a building board and attaches a decorative paper having a predetermined pattern to the building board while synchronizing with the transportation.

The following is an example of a building board coating device. That is, it is a building board coating apparatus 301 whose outline is shown in FIG. The building board coating device 301 includes a roller conveyor 310 and a coating drum 320. The roller conveyor 310 has a conveyance surface 3 indicated by a broken line in the figure.
The construction board 390 is conveyed along the direction 12 in the direction indicated by the arrow 310A (from left to right in the figure), and includes a large number of conveyance rollers 311.

Further, the coating drum 320 has a screen 330, a screen circulation moving mechanism 340, and a spray mechanism 350. Of these, screen 330
Is a strip-shaped stainless steel plate screen stretched in a cylindrical annular shape by a rim 341 described below, and is located above the roller conveyor 310 in the drawing. A predetermined opening pattern corresponding to one building board 390 is formed on the screen 330.

The screen circulation moving mechanism 340 holds the screen 330 in a cylindrical shape, and at the same time, the arrow 330S.
It is rotated in the direction of (counterclockwise in the figure) to move circularly. The rim 341 has a shape in which two circular rings are coaxially arranged at a predetermined interval, and holds the screen 330 in a cylindrical shape. The rim 341 has an annular gear portion 341G on the peripheral edge thereof. Since the annular gear portion 341G meshes with the gear 342, the rotation of the rim 341 is controlled by the stepping motor 343 connected to the shaft of the gear 342. Further, the screen circulation moving mechanism 340 includes building material sensors 343A, 343B, 343C that detect the position of the building material 390, and when the building material 390 is transported, the building material 3 is placed at a predetermined position.
When 90 arrives, the building material sensor 343A or the like outputs the signal SG
A, SGB and SGC are generated respectively. Also, a screen sensor 344 that detects the tip of the screen 330.
When the tip of the rotating screen 330 reaches the detection position of the screen sensor 344, the signal SGD is generated.

Further, the screen 330 and the rim 341.
Are controlled to rotate (circulate) in synchronization with the transportation of the building board 390. Specifically, according to a control program stored in the ROM of a control computer (not shown) including a ROM and a RAM, the roller conveyor 31
The rotation of each transport roller 311 of 0, and thus the transport speed of the building board 390 is controlled. Further, the rotation of the rim 341, and thus the rotation speed (peripheral speed) of the screen 330 is also controlled via the stepping motor 343 and the gear 342 of the screen circulation moving mechanism 340. The control computer, based on the signals SGA to SGC from the building board sensors 343A to 343C that detect the building board 390 and the signal SGD from the screen sensor 344 that detects the tip of the screen 330, the conveyance speed of the roller conveyor 310 and the screen. Rotation speed (peripheral speed) of 330 (specifically, rim 341)
Adjust so that and match. Along with this, the building board 39
The transport timing of 0 and the traveling timing of the screen 330 are also adjusted to adjust the position of the building material 390 and the screen 330.
Adjustment is performed so that the coating material P is sprayed toward the building material 390 in a state in which the opening pattern formed in 1 is aligned.

The low-pressure airless spray gun 351 of the spray mechanism 350 is located below the central axis of the rim 341 in the figure, and the building plate 390 and the screen 330 are the most lower of the annular screen 330 in the figure. At the approaching position, the coating material P is jetted from the inner peripheral side of the screen 330 toward the building board 390 through the screen 330.

With such a building board coating device 301,
The building board 390 is conveyed by the roller conveyor 310, and the coating material P is applied according to the opening pattern of the screen 330 that rotates (circulates) in synchronization with this. Therefore, the coating material P can be applied to the building board 390 in a very short time, and the productivity can be increased. Moreover, since the screen 330 is stretched in a cylindrical shape, it is sufficient to rotate the screen 330 together with the rim 341 in the direction of the arrow 330S and to move the screen in a circulating manner, and the reversing operation (returning operation) is unnecessary. Therefore, since the building board 390 can be successively conveyed and the coating material P can be applied, the productivity can be particularly increased. In addition, this building board coating device 3
For details of 01, refer to JP 2001-9333 A.

[0009]

However, in the building board coating apparatus 301 as described above, if the conveying speed is increased to further increase the productivity, for example, the conveying speed is set to 4
When the speed is about 0 m / min or more, a large error may occur in the synchronization between the conveyance of the building board 390 by the roller conveyor 310 and the coating of the building board 390 by the coating drum 320. Then, it becomes impossible to paint a predetermined pattern on a predetermined position of the building board 390. For example, if a long building board having a length of 3010 mm is painted, a coating deviation of about 2.7 mm will occur even if a slight tuning error of about 0.1% is applied. As described above, it is difficult for the building board coating apparatus 301 that uses feedback control to perform coating at a high transport speed. Similarly, it is difficult for other building board processing devices including a building board laminator device to perform processing on a building board with high accuracy by feedback control.

The present invention has been made in view of the above circumstances, and relates to a building board processing apparatus and a building board coating apparatus for processing a building board while carrying the building board, at which the building board is carried at a high carrying speed. Even if it is, it aims at providing the building board processing apparatus and building board coating apparatus which can process a building board accurately.

[0011]

[Means for Solving the Problem, Action and Effect] The means for solving the problems are a first pulley and a second pulley which are respectively rotated by the rotation of a drive shaft, and a third pulley which is located away from the first pulley. , A building board that is laid over the first pulley and the third pulley, moves between the first pulley and the third pulley by the rotation of the first pulley, and is placed on a toothless surface A first timing belt having one tooth for transporting while positioning, wherein a plurality of positioning members for positioning the front end or the rear end of the building board to be placed are attached to the toothless surface. , A second timing belt that meshes with the second pulley and moves by the rotation of the second pulley, and a second timing belt that operates by the rotation of the second pulley through the second timing belt, Predetermined addition A processing means for performing, the second
And a processing means having a fourth pulley that meshes with the timing belt.

According to the present invention, by using the first and second timing belts, the conveyance of the building board through the first timing belt and the processing of the building board through the second timing belt are synchronized. be able to. For this reason,
Compared with the case where a building board is processed by feedback control using various sensors, it is possible to synchronize the conveyance of the building board and the processing of the building board very accurately. Therefore, even if the building board is carried at an increased carrying speed, the building board can be accurately processed. As a building board processing device, a building board coating device that paints a predetermined pattern on a building board,
An example is a building board laminator device that attaches decorative paper to a building board.

Another means for solving the problems is a first pulley and a second pulley which are respectively rotated by the rotation of the drive shaft, a third pulley which is located away from the first pulley, and the first pulley.
While being stretched over a pulley and a third pulley, the first pulley is rotated to move between the first pulley and the third pulley to position a building board placed on a toothless surface. A first timing belt having one tooth to be conveyed, wherein a plurality of positioning members for positioning the front end or the rear end of the building board to be placed are attached to the toothless surface, and the second timing belt. A second timing belt that meshes with a pulley and moves by the rotation of the second pulley, and a second timing belt that rotates by the rotation of the second pulley while rotating on the upper surface of the building board being conveyed. A painting drum for painting a predetermined pattern, comprising a fourth pulley meshing with the second timing belt, a screen having a predetermined opening pattern formed in an annular shape, and an inside of the screen. And a coating drum having a spray mechanism for injecting paint toward the building board through the screen, the speed of the first timing belt and the peripheral speed of the screen are equal, and the positioning member is The circumference of the circle formed by the annularly stretched screens, which are arranged at equal intervals L on the first timing belt, is:
The building board coating device is an integral multiple of the interval L.

In the present invention, the first and second timing belts are used, and the speed of the first timing belt (conveying speed of the building board) and the peripheral speed of the screen are made equal to convey the building board and the building board. The paint can be synchronized.
In addition, since the first timing belt conveys and the second timing belt rotates the coating drum (fourth pulley), either the conveying speed of the first timing belt or the peripheral speed of the coating drum (fourth pulley). Even if a fluctuation occurs in the other, the fluctuation is immediately transmitted to the other and the synchronization is always maintained. Therefore, as compared with the case where the building board is painted by feedback control using various sensors, the transfer of the building board and the painting of the building board can be synchronized very accurately. Therefore, even if the building board is carried at an increased carrying speed, the building board can be coated with high accuracy. Moreover, since the positioning members are arranged on the first timing belt at equal intervals L and the circumference of the circle formed by the screen is an integral multiple of this interval L, no matter how many rotations the first timing belt and the coating drum rotate. , The position of the first timing belt and the coating drum is always aligned. Therefore, even if the building boards are continuously conveyed one after another, the building boards and the opening pattern of the screen are always aligned with each other, so that the painting of the building boards can be continuously performed and the productivity is improved. You can

Another solution is that the first pulley and the second pulley are respectively rotated by the rotation of the drive shaft, the third pulley is separated from the first pulley, and the first pulley is the first pulley.
While being stretched over a pulley and a third pulley, the first pulley is rotated to move between the first pulley and the third pulley to position a building board placed on a toothless surface. A first timing belt having one tooth to be conveyed, wherein a plurality of positioning members for positioning the front end or the rear end of the building board to be placed are attached to the toothless surface, and the second timing belt. A fourth drum that is a painting drum for painting a predetermined pattern on the upper surface of the building board which is being conveyed, while rotating through the second timing belt by the rotation of the pulley, the fourth pulley meshing with the second timing belt. ,
A coating drum having a screen in which a predetermined opening pattern is formed and stretched in an annular shape, and a spray mechanism which is located inside the screen and sprays paint toward the building board through the screen. A rotation ratio k of the second pulley with respect to the first pulley, the number of teeth N1 of the first pulley, the number of teeth N2 of the second pulley, the tooth pitch p1 of the first timing belt, the teeth of the second timing belt. Pitch p2, pitch circle diameter d of the fourth pulley
4 and the diameter dS of the circle formed by the annularly stretched screen, the following formula (1) k · (N2 / N1) ·
(P2 / p1) · (dS / d4) = 1 (1) is satisfied, and the positioning members are arranged at equal intervals L on the first timing belt, and the circle formed by the screen stretched annularly is formed. The circumference is a building board coating device that is an integral multiple of the interval L.

In the present invention, the first and second timing belts are used, the rotation ratio k of the second pulley to the first pulley, the number of teeth N1 of the first pulley, the number of teeth N2 of the second pulley, and the timing belt of the first timing belt. Tooth pitch p1, tooth pitch p2 of the second timing belt, pitch circle diameter d4 of the fourth pulley, and
Between the diameter dS of the circle formed by the screen, k · (N2 / N
1) · (p2 / p1) · (dS / d4) = 1. With such a configuration, the speed of the first timing belt (conveyance speed of the building board) and the peripheral speed of the screen become equal, so that the conveyance of the building board and the painting of the building board can be synchronized. In addition, since the first timing belt conveys and the second timing belt rotates the coating drum (fourth pulley), either the conveying speed of the first timing belt or the peripheral speed of the coating drum (fourth pulley). Even if a fluctuation occurs in the other, the fluctuation is immediately transmitted to the other and the synchronization is always maintained. For this reason, as compared with the case where the building board is painted by feedback control using various sensors, the synchronization between the transportation of the building board and the painting of the building board can be achieved very accurately. Therefore, even if the building board is carried at an increased carrying speed, the building board can be coated with high accuracy. Moreover, since the positioning members are arranged on the first timing belt at equal intervals L and the circumference of the circle formed by the screen is an integral multiple of this interval L, no matter how many rotations the first timing belt and the coating drum rotate. ,always,
The 1st timing belt and the drum for painting are aligned. Therefore, even if the building boards are continuously conveyed one after another, the building boards and the opening pattern of the screen are always aligned with each other, so that the painting of the building boards can be continuously performed and the productivity is improved. You can

Further, in the building board coating apparatus described above,
Rotational ratio k of the second pulley to the first pulley k = 1
The number of teeth N1 of the first pulley is equal to the number of teeth N2 of the second pulley, and the tooth pitch p1 of the first timing belt is the tooth pitch p2 of the second timing belt.
The pitch circle diameter d4 of the fourth pulley is preferably equal to the diameter dS of the circle formed by the annularly stretched screen.

According to the invention, the second pulley with respect to the first pulley
The pulley rotation ratio k, the number of teeth N1 of the first pulley, the number of teeth N2 of the second pulley, the tooth pitch p1 of the first timing belt, the tooth pitch p2 of the second timing belt, the pitch circle diameter d4 of the fourth pulley, and , For the diameter dS of the circle formed by the screen, k = 1, N1 = N2, p1 = p2, and d4
= DS. As described above, by making the numerical values of the respective members related to the movement of the first timing belt and the numerical values of the respective members related to the rotation of the coating / coating drum equal, the most position between the first timing belt and the screen can be obtained. Misalignment is less likely to occur. Therefore, even if the building board is carried at an increased carrying speed, the building board can be painted more reliably and accurately.

Further, in the building board coating apparatus according to any one of the above, the circumference of a circle formed by the annular screen is equal to the spacing L between the positioning members. good.

In the present invention, the circumference of the circle formed by the screen is made equal to the distance L between the positioning members. In other words, since one building board is transported while being aligned by one positioning member, only an opening pattern corresponding to one building board is formed on this screen. Therefore, the outer shape (diameter) of the painting drum can be made the most compact. There is also an advantage that the screen and the like are cheap.

Further, in the building board coating apparatus according to any one of the above, it is provided with a fifth pulley which is located away from the second pulley and the fourth pulley, and the second timing belt has timing of both teeth. The building board coating device is a belt, which is hung over the second pulley and the fifth pulley on one surface and meshed with the fourth pulley on the other surface.

According to the present invention, the second timing belt having both teeth is stretched over the second and fifth pulleys on one surface and meshed with the fourth pulley on the other surface. Therefore, the fourth pulley can be easily removed from the second timing belt when the screen is replaced or the spray mechanism is maintained, and the work is easy. Further, with such a configuration, it is possible to arrange a plurality of painting drums side by side, which makes it possible to paint a complicated pattern on the building board.

Further, in the building board coating apparatus according to any one of the above, a positioning guide plate for positioning a side edge of the building board, wherein the building board is provided on one side of the first timing belt. A positioning guide plate which is installed extending in the transport direction of the building board and a side end of the building board comes into contact with the building board during transportation; It is preferable that the building board coating device is equipped with.

According to the present invention, the building board coating apparatus has a positioning guide plate for positioning the side edges of the building board and an obliquely moving body board in a direction deflected from the conveying direction toward the positioning guide board side. And line means. Therefore, along with the conveying direction of the building board, since the side edge of the building board is conveyed in contact with the positioning guide plate as it is pressed against it, the building board is conveyed while positioning the side edge of the building board, and Can be painted on building boards. Therefore, not only the front-back direction (conveyance direction) of the building board, but also the left-right direction (side direction)
With respect to, it is possible to accurately paint.

Further, in the building board coating apparatus described above,
The skewing means is a large number of conveying rollers that support the building board from below, and a direction orthogonal to the axis of the conveying rollers and a direction deflected from the conveying direction to the positioning guide plate side coincide with each other. As described above, it is preferable to use a building board coating device that is a skew conveying roller in which the conveying roller is inclined.

In the present invention, a large number of conveying rollers for supporting the building board from below are provided as the skew feeding means. These conveyance rollers are skewed conveyance rollers arranged so as to be inclined so that the direction orthogonal to their axes and the direction deflected toward the positioning guide plate side from the conveyance direction coincide. Therefore, since the side edge of the building board is pushed against the positioning guide plate and is conveyed in contact with the building board along with the conveying direction of the building board, the building board is conveyed while positioning the side edge of the building board, and Can be painted on building boards. Therefore, not only the front-back direction of the building board but also the left-right direction can be accurately coated.

Alternatively, in the building board coating device, the skewing means is a support plate that supports the building board from below and extends in the carrying direction, and the side closer to the positioning guide plate is the far side. Rather, it may be a building board coating device which is a skewed support board in which the building board is made to be less slippery.

In the present invention, a support plate that supports the building board from below and extends in the transport direction is provided as the skewing means. This support plate is closer to the positioning guide plate than to the far side.
It is a slanting support plate whose building boards are made to be slippery. Therefore, since the side edge of the building board is pushed against the positioning guide plate and is conveyed in contact with the building board along with the conveying direction of the building board, the building board is conveyed while positioning the side edge of the building board, and Can be painted on building boards. Therefore, not only in the front-back direction of the building board but also in the left-right direction,
Can be painted accurately. Moreover, since the support plate is used, the structure is simpler than that of the transport roller and the like.

Further, in the building board coating apparatus according to any one of the above, there are provided a plurality of conveying rollers for supporting the building board from below, and at a peripheral speed higher than a speed of the first timing belt, or It is preferable to use a building board coating device including a large number of conveying rollers that rotate at a low peripheral speed.

In the present invention, a large number of transport rollers other than the first timing belt are provided as means for transporting the building board. Then, these transport rollers rotate at a peripheral speed that is faster or slower than the peripheral speed of the first timing belt. If the peripheral speed of the conveying roller is set higher than the speed of the first timing belt, the building board can be conveyed while the front end of the building board is constantly abutted against the positioning member of the first timing belt. On the other hand, if the peripheral speed of the conveying roller is set lower than the speed of the first timing belt, the building board can be conveyed while the rear end of the building board is constantly abutted against the positioning member of the first timing belt. Therefore, in any case, you can easily align the building board and screen,
Can be applied to building boards with high precision.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION (Embodiment 1) Hereinafter, embodiments of the present invention will be described with reference to the drawings. About the building board coating apparatus (building board processing apparatus) 101 of this Embodiment 1, the top view seen from above is shown in FIG. 1, and the side view is shown in FIG. Further, FIG. 3 shows an outline of a portion of the building board coating device 101 that conveys the building board 190, and FIG. 4 shows a coating drum 150 of the building board coating device 101.

The building board coating apparatus 101 coats the building board 190 while carrying the following building board 190 in synchronism with the carrying. That is, the building board 190
Is an inorganic board called a ceramic building board consisting mainly of fiber and cement, with a length of 1818 mm and a width of 4
It has a rectangular plate shape of 55 mm.

The building board coating apparatus 101 includes a motor 110.
, The conveyor 130, the three coating drums 150A,
And 150B and 150C. Of these, the motor 110
Is a drive source of the building board coating apparatus 101. As shown in FIG. 1, a gear 112 is fixed to the drive shaft 111, and gears 113 and 114 having the same number of teeth are meshed with the left and right sides of the gear 112 in the drawing. Among them, the gear 113 on the left side in the drawing is
Pitch circle diameter d1 is 194.04 mm, number of teeth N1 is 96
The first pulley 116 having a tooth pitch p1 of 12.7 mm is fixed. Therefore, when the motor 110 is driven, the first pulley 116 rotates. On the other hand, the gear 114 on the right side in the drawing is connected to the first pulley 11 via the rotary shaft 117.
Similarly to 6, the second pulley 118 having a pitch circle diameter d2 of 194.04 mm, the number of teeth N2 of 96, and a tooth pitch p2 of 12.7 mm is fixed. Therefore, when the motor 110 is driven, the second pulley 118 also rotates like the first pulley 116. The two gears 113 and 114 meshed with the gear 112 of the drive shaft 111 have the same number of teeth, and the first and second pulleys 116 and 116 meshed with them.
Since 118 also has the same number of teeth, the rotation ratio k of the second pulley 118 to the first pulley 116 is k = 1.

The conveyer 130 connects the building board 190 with the arrow 1
The sheet is conveyed in the direction indicated by 30A (from right to left in FIGS. 1, 2, and 3). The conveyor 130 includes a first timing belt 131 and a large number of skew conveying rollers (conveying rollers) 1.
32 and a positioning guide plate 136. The first timing belt 131 is a one-toothed timing belt,
Number of teeth NT1 is 1506, tooth pitch p1 is 12.7 mm
The total length is 1926.2 mm. The first timing belt 131 includes the first pulley 116 and the first pulley 116.
It is hung around a third pulley 133 located on the right side in FIGS. 1, 2, and 3 apart from the pulley 116. The third pulley 133 has a pitch circle diameter d3 of 194.04 mm, a number of teeth N3 of 96, and a tooth pitch p1 of 12.7 mm.
A building board 190 is placed on the toothless surface (outer surface) 131A (upper surface in FIGS. 2 and 3) of the first dimming belt 131.
It is transported with the movement of 1. Also, this toothless surface 13
1A has a plurality of dogs (positioning members) 134 (6 pieces) over the entire circumference at an equal interval L (3187.7 mm).
It is installed. As shown in FIG. 3, the dog 134 abuts the front end 190H of the building board 190 to be conveyed and positions the building board 190 at a predetermined position on the first timing belt 131.

On the other hand, each of the skew conveying rollers 132 is connected to the drive shaft of the second motor 135 via a chain (not shown) (see FIG. 1). Therefore, the second motor 1
When 35 is driven, each skew conveyance roller 132 is rotated. These skew conveying rollers 132 can also convey the building board 190 placed thereon, but their main role is to rotate the building board 190 at a peripheral speed higher than the speed of the first timing belt 131. The front edge 190H of the building board 190 and the dog 1 of the first timing belt 131.
It is to maintain the state of being always attached to 34. Further, each of the skew conveying rollers 132 is arranged at an angle of 1 to 2 degrees counterclockwise in FIG. 1 with respect to the direction perpendicular to the conveying direction. That is, the skew conveying roller 132
The rollers are arranged so as to be inclined so that the direction orthogonal to the axis of and the direction in which the building plate 190 is conveyed toward the positioning guide plate 136, which will be described below, coincides. Therefore, when the skew conveying roller 132 rotates, the building board 190
Since the side end of the front end 1 is always pressed against the positioning guide plate 136 and is brought into contact therewith, the front end 1
Not only 90H but side edges are always aligned and transported. As shown in FIG. 1, the positioning guide plate 136
Is one side of the first timing belt 131 (downward in the figure)
In addition, the building board 190 extends in the transport direction, and is installed from one end to the other end of a large number of skew transport rollers 132. As described above, the positioning guide plate 136 is for positioning and transporting the side edge of the building board 190 being transported.

Next, the coating drums 150A, 150B,
150C will be described. The coating drums 150A and the like are the same except that the opening pattern of the screen 152 is different, and therefore will be described collectively. Painting drum 150
Are installed above the conveyor 130. This coating drum 150, as shown in FIG.
1, a screen 152 stretched in an annular shape, a spray mechanism 153, an internal cleaning mechanism 154, and an external cleaning mechanism 155.

Of these, the fourth pulley 151 has a pitch circle diameter d4 of 507.333375 mm and a number of teeth N4 of 251.
The tooth pitch p2 is 12.7 mm and is fixed coaxially with the central axis of the coating drum 150. Further, at a position on the right side in FIGS. 1 and 2 which is separated from the painting drum 150,
The fifth pulley 119 is installed. And this fifth
A second timing belt 120 is stretched around the pulley 119 and the above-mentioned second pulley 118. The second timing belt 120 is a timing belt with two teeth, but like the first timing belt 131, the number of teeth is NT2.
Is 1,506, the tooth pitch p2 is 12.7 mm, and the total length is 1926.2 mm. The second and fifth pulleys 118,
As shown in FIG. 2, 119 are meshed with each other on one surface (inner surface) of the second timing belt 120. Further, the other surface (outer surface) of the second timing belt 120 is meshed with the fourth pulley 151 below.

With this configuration, the second pulley 118
When is rotated, through the second timing belt 120,
The fourth pulley 151 and the fifth pulley 119 rotate. Therefore, the coating drums 150A to 150C are similar to those in FIGS.
Rotate in the clockwise direction. In addition, as shown in FIG.
Between the pulley 118 and the fifth pulley 119, the second
A plurality of small pulleys 121 are arranged in order to surely engage the fourth pulley 151 with the timing belt 120 in a tensioned state.

Next, as shown in FIG. 4, the screen 15
Reference numeral 2 is a strip-shaped stainless steel plate screen stretched into a cylindrical annular shape by a rim 156 described below. Its size is 3187.7 mm in total length (circumference) and 650 m in width.
m. This screen 152 has one building board 1
An opening pattern corresponding to 90 is formed. Since the screen 152 is stretched in an annular shape with a gap provided only at the mounting portion (not shown) of the screen 152, the circumference of the circle formed by the screen 152 is 3187.76, and therefore its diameter dS is 1014.668 mm. That is, this circumference is defined by the first timing belt 13
It is equal to the interval L of one dog 134. Also, this diameter d
S is equal to the pitch circle diameter d4 of the fourth pulley 151.
The screen 152 is kept in a non-contact state with a small gap with the building board 190 during painting. The rim 156 for holding the screen 152 in a cylindrical shape has a shape in which roughly two circular rings are coaxially arranged at a predetermined interval, and holds the screen 152 in a cylindrical shape. With this structure, the coating drum 15
When 0 rotates once, it is possible to paint one building board 190. In particular, in the first embodiment, since the three coating drums 150A, 150B, 150C are installed side by side, it is possible to apply a complicated coating to the building board 190.

The low-pressure airless spray gun 158 of the spray mechanism 153 is located below the center axis of the rim 156 in the figure, and the building plate 190 and the screen 152 are the closest to each other in the lower part of the annular screen 152 in the figure. Screen 1 from the inside of the screen 152
The coating material P is jetted toward the building board 190 via 52. Specifically, a relatively low pressure (0.
The coating material P pressure-fed at 3 to 4.0 kg / cm 2) is ejected from the low pressure airless spray gun 158. The low-pressure airless spray guns 158 are arranged side by side in the direction perpendicular to the paper surface of FIG.

Further, the internal cleaning mechanism 154 is
The unnecessary coating material PR attached to the inside of the screen 152 is removed. Specifically, the inner cleaning roll 161 that cleans the unnecessary coating material PR attached to the inner peripheral surface of the screen 152.
And a steel blade 160 for scraping off the cleaning liquid adhering to the inner peripheral surface of the screen 152 after that, and the unnecessary coating material PR is removed by these. Further, a solvent (specifically, water) capable of dissolving the unnecessary coating material PR is supplied through the cleaning liquid supply pipe 162. The removed unnecessary coating material PR is recovered through the tray 163 and the recovery pipe 164 and reused for coating.

The external cleaning mechanism 155 also removes the unnecessary coating material PR attached to the outside of the screen 152. Specifically, it is provided with an outer cleaning roll 167 that is rotated by the drive of the air motor 166, thereby removing the unnecessary coating material PR. The removed unnecessary coating material PR is received by the tray 168.

As described above, the building board coating apparatus 1
In 01, the first and second timing belts 131 and 120 are used so that the speed of the first timing belt 131 and the peripheral speed of the screen 152 are equal. Specifically, the rotation ratio k of the second pulley 118 to the first pulley 116, the number of teeth N1 of the first pulley 116, the second pulley 118.
Number of teeth N2, tooth pitch p of the first timing belt 131
1, the tooth pitch p2 of the second timing belt 120, the fourth
The pitch circle diameter d4 of the pulley 151 and the screen 1
Between the diameter dS of the circle formed by 52, k · (N2 / N1) ·
The speed of the first timing belt 131 and the peripheral speed of the screen 152 are made equal by configuring so as to satisfy the expression (p2 / p1) · (dS / d4) = 1. Moreover, the first timing belt 131 conveys the material, and the second timing belt 120 conveys the coating drum 150 (the fourth pulley 1
52) is rotated, so that the first timing belt 131
Transport speed or coating drum 150 (4th pulley 1
Even if one of the peripheral speeds of 52) fluctuates, the fluctuation is immediately transmitted to the other and the synchronization is always maintained. For this reason,
Compared with the case where the building board 190 is painted by feedback control using various sensors, the transfer of the building board 190 and the painting of the building board 190 can be synchronized very accurately. Therefore, even if the building board 190 is carried at an increased carrying speed, the building board 190 can be accurately coated.
Specifically, in the conventional feedback control, the building board 1
If the transportation speed of 90 is 40 m / min, for example, 5 to 15
In contrast to the coating deviation of about mm, in the first embodiment, the coating deviation of only about 1 mm occurs at the same transport speed.

Moreover, the dogs 134 are arranged on the first timing belt 131 at equal intervals L, and
Since the circumference of the circle formed by 2 is an integral multiple (1 in this embodiment) of this interval L, the first timing belt 13
If the positions of the dog 134 and the screen 152 of No. 1 are properly adjusted, no matter how many rotations the first timing belt 131 and the painting drum 150 rotate, the first timing belt 131 (dog 134) and the painting drum 150 are always provided. The positional relationship of 150 (screen 152) does not change. Therefore, the transportation of the building board 190 and the rotation of the screen 152 (building board 1
90), the building board 190 can be continuously painted, and productivity can be improved. Specifically, the building board 190 can be continuously coated at a high transport speed of 40 m / min to 50 m / min.

Further, in the first embodiment, the first pulley 1
The rotation ratio k of the second pulley 118 with respect to 16, the number of teeth N1 of the first pulley 116, the number of teeth N2 of the second pulley 118, the first
Regarding the tooth pitch p1 of the timing belt 131, the tooth pitch p2 of the second timing belt 120, the pitch circle diameter d4 of the fourth pulley 151, and the diameter dS of the circle formed by the screen 152, k = 1, N1 = N2, p1 = The relationship is p2 and d4 = dS. By doing this,
The position shift is most unlikely to occur between the first timing belt 131 and the screen 152. Therefore, even if the building board 190 is carried at an increased carrying speed, the building board 190 can be coated more reliably and accurately.

Further, in the first embodiment, the screen 15
The circumference of the circle formed by 2 is made equal to the interval L between the dogs 134. In other words, since one building board 190 is transported while being aligned by one dog 134,
Only an opening pattern corresponding to one building board 190 is formed on the screen 152. Therefore, the outer shape (diameter) of the coating drum 150 can be minimized, and the size of the building board coating apparatus can be reduced. There is also an advantage that the screen 152 and the like are inexpensive.

The second timing belt 120 for both teeth is also used.
Is the second and fifth pulleys 118, 1 on one surface (inner peripheral surface).
19 and also the other surface (outer peripheral surface)
It is meshed with the pulley 151. Therefore, when the screen 152 is replaced or the spray mechanism 153, the internal cleaning mechanism 154, and the external cleaning mechanism 155 are maintained, the painting drum 150 can be removed from the second timing belt 120 simply by lifting it upward in FIG. it can. Further, since it is easy to set the painting drum 150, the work is easy. Further, with such a configuration, the plurality of coating drums 150A, B, C can be arranged side by side as described above, and a complicated pattern can be coated on the building board 190.

In addition to the first timing belt 131, a large number of skew feeding rollers 132 are provided as means for feeding the building board 190. Then, the skew conveying rollers 132 are rotated at a peripheral speed higher than that of the first timing belt 131. As a result, the front end 190H of the building board 190 is attached to the dog 134 of the first timing belt 131.
It is possible to convey the building board 190 while constantly abutting it. Therefore, the building board 190 and the screen 152 can be easily
Can be aligned and the building board 190 can be accurately coated.

Further, the building board coating device 101 is used for the building board 1
A positioning guide plate 136 for positioning the side end of 90,
A skewing means for moving the building board 190 toward the positioning guide plate 136 is provided. More specifically, a large number of skew conveying rollers 132 that support the building board 190 from below.
Equipped with. The skew conveying rollers 132 are arranged so as to be inclined so that the direction orthogonal to the axes thereof and the direction deflected from the conveying direction of the building board 190 toward the positioning guide plate 136 side coincide with each other. Therefore, while the side edge of the building board 190 is in contact with the positioning guide plate 136, the building board 1
90 can be conveyed while being positioned, and can be painted on the building board 190. Therefore, it is possible to prevent the building board 190 from meandering, and to apply the coating accurately not only in the front-back direction but also in the left-right direction.

(Second Embodiment) Next, a second embodiment will be described with reference to FIG. The description of the same parts as those in the first embodiment will be omitted or simplified. The building board coating apparatus 201 according to the second embodiment is different from the first embodiment in that the building board 190 is carried only by the two first timing belts 231 without the skew carrying rollers 132. Further, instead of the skew conveying rollers 132, the building board 1
It is also different from the first embodiment in that the oblique support plate 232 that supports the 90 from below is provided.

FIG. 5 schematically shows a part of the building board coating device 201 that conveys the building board 190. In this building board coating device 201, two first pulleys 216, which are similar to the first pulley 116 of the above-described first embodiment, are fixed via a rotating shaft 115 at intervals. Therefore, when the motor 110 is driven, the two first pulleys 216 respectively rotate.

The conveyor 230 according to the second embodiment includes two first timing belts 231 and two skew support plates 23.
2 and a positioning guide plate 136 similar to that of the first embodiment.
(Not shown). Each of the first timing belts 231 is the first timing belt 1 of the first embodiment.
It is similar to 31. These first timing belts 231 are stretched around a first pulley 216 and two third pulleys 233 located on the right side of the drawing away from the first pulley 216. These third pulleys 233 are the same as the third pulley 133 of the first embodiment. With such a configuration, the building board 190 placed on the first timing belt 231 is conveyed along with the movement of the first timing belt 231.

On the other hand, the oblique support plate 232 is installed so as to extend in the carrying direction and support the building board 190 from below. Of the two skew support plates 232, the skew support plate 232A located apart from the positioning guide plate 136 (above in the figure) is on the side of the positioning guide plate 136 (below in the figure). The surface friction coefficient is lower than that of the support plate 232B. Therefore, since the building board 190 is more slippery on the skew support plate 232A than on the skew support plate 232B, when the building board 190 is transported, the building board 1
The 90 is transported while being aligned so that its side end is always pressed against and brought into contact with the positioning guide plate 136.

As described above, in the second embodiment,
Since the diagonal support plate 232 is provided, the building board 190 is conveyed while positioning the side edge of the building board 190 so that the side edge of the building board 190 contacts the positioning guide plate 136, and
Can be painted on building boards. Therefore, the building board 19
It is possible to paint accurately not only in the front-back direction of 0 but also in the left-right direction. Moreover, since the skew support plate 232 is used without using the roller, the cost can be reduced. The other effects are the same as those in the first embodiment.

Although the present invention has been described with reference to the embodiments, the present invention is not limited to the first and second embodiments, and is appropriately modified and applied without departing from the scope of the invention. It goes without saying that you can do it. For example, in the first embodiment, the peripheral speed of the skew conveying roller 132 is set to be higher than the speed of the first timing belt 131, and the construction board 1
The front end 190H of 90 is brought into contact with the dog 134 for positioning. However, conversely, the peripheral speed of the skew conveying roller 132 is set lower than the speed of the first timing belt 131,
The rear end of the building board 190 may be brought into contact with the dog 134 for positioning.

[Brief description of drawings]

FIG. 1 is a plan view of a building board coating apparatus according to a first embodiment viewed from above.

FIG. 2 is a side view of the building board coating apparatus according to the first embodiment.

FIG. 3 is an explanatory diagram showing a portion of the building board coating device according to the first embodiment that conveys a building board.

FIG. 4 is an explanatory diagram showing a coating drum of the building board coating apparatus according to the first embodiment.

FIG. 5 is an explanatory diagram showing a portion of the building board coating apparatus according to the second embodiment that conveys the building board.

FIG. 6 is an explanatory view showing a building board coating device according to a conventional technique.

[Explanation of symbols]

101 Building board coating equipment (building board processing equipment) 111 drive axis 116,216 first pulley 118 second pulley 119 Fifth pulley 120 Second Timing Belt 131, 231 First timing belt 132 Oblique transport roller (transport roller) 133, 233 Third pulley 134 dog (positioning member) 150 Painting drum (processing means) 151 Fourth pulley 152 screen 153 spray mechanism 190 Building board 232 Oblique support plate

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasushi Mochizuki             3-14-30 Heiwacho, Shizuoka City, Shizuoka Stock             Company Mochizuki Kiko Factory F-term (reference) 4F040 AA02 AB04 AC01 BA17                 4F042 AA02 AA17 AA20 BA08 CA03                       CB02 DD45 DF19

Claims (10)

[Claims] 1. A first device which is rotated by rotation of a drive shaft.
A pulley and a second pulley; a third pulley located away from the first pulley; a first pulley and a third pulley;
A first-timing belt with one tooth, which moves between the first pulley and the third pulley by the rotation of the pulley and conveys while positioning the building board placed on the toothless surface,
A first timing belt having a plurality of positioning members for positioning the front end or the rear end of the building board placed on the toothless surface meshes with the second pulley and moves by rotation of the second pulley. And a second timing belt, which is a processing unit that is actuated by the rotation of the second pulley via the second timing belt to perform a predetermined process on the building board that is being conveyed. A processing device having a fourth pulley that meshes with the building board processing device. 2. A first device which is rotated by rotation of a drive shaft.
A pulley and a second pulley; a third pulley located away from the first pulley; a first pulley and a third pulley;
A first-timing belt with one tooth, which moves between the first pulley and the third pulley by the rotation of the pulley and conveys while positioning the building board placed on the toothless surface,
A first timing belt having a plurality of positioning members for positioning the front end or the rear end of the building board placed on the toothless surface meshes with the second pulley and moves by rotation of the second pulley. A second timing belt for rotating, and a coating drum for coating a predetermined pattern on the upper surface of the building board being conveyed while rotating through the second timing belt by the rotation of the second pulley, A fourth pulley which meshes with the second timing belt, a screen which is annularly stretched and has a predetermined opening pattern, and a spray which is located inside the screen and sprays paint toward the building board through the screen. A coating drum having a mechanism, the speed of the first timing belt and the peripheral speed of the screen are equal, and the positioning member is The building board coating device, wherein the circumference of the circle formed by the screens stretched in an annular shape arranged at equal intervals L on the first timing belt is an integer multiple of the interval L. 3. A first device which is rotated by rotation of a drive shaft.
A pulley and a second pulley; a third pulley located away from the first pulley; a first pulley and a third pulley;
A first-timing belt with one tooth, which moves between the first pulley and the third pulley by the rotation of the pulley and conveys while positioning the building board placed on the toothless surface,
Through a first timing belt having a plurality of positioning members for positioning the front end or the rear end of the building board placed on the toothless surface, and the second timing belt by rotation of the second pulley. A painting drum for painting a predetermined pattern on the upper surface of the building board being conveyed while rotating, a fourth pulley meshing with the second timing belt, and a predetermined opening pattern formed in an annular shape. A screen and a coating drum having a spray mechanism located inside the screen and spraying the coating toward the building board through the screen; and rotating the second pulley with respect to the first pulley. Ratio k, the number of teeth N1 of the first pulley, the number of teeth N2 of the second pulley,
Between the tooth pitch p1 of the first timing belt, the tooth pitch p2 of the second timing belt, the pitch circle diameter d4 of the fourth pulley, and the diameter dS of the circle formed by the annularly stretched screen, Formula (1) k · (N2 / N1) · (p2 / p1) · (dS / d4) = 1 (1) is satisfied, and the positioning members are arranged at equal intervals L on the first timing belt. The building board coating device, wherein the circumference of the circle formed by the annular screen is an integral multiple of the interval L. 4. The building board coating apparatus according to claim 3, wherein a rotation ratio k of the second pulley to the first pulley is k = 1.
And the number of teeth N1 of the first pulley is the number of teeth N of the second pulley.
2 and the tooth pitch p1 of the first timing belt is equal to
A building board coating apparatus, which is equal to the tooth pitch p2 of the timing belt, and the pitch circle diameter d4 of the fourth pulley is equal to the diameter dS of the circle formed by the annularly stretched screen. 5. The building board coating apparatus according to claim 2, wherein a circumference of a circle formed by the annularly stretched screen is equal to a distance L between the positioning members. Building board coating equipment. 6. The building board coating apparatus according to claim 2, wherein the building board coating apparatus is located away from the second pulley and the fourth pulley.
The second timing belt is a two-toothed timing belt, and is stretched over the second pulley and the fifth pulley on one surface and meshed with the fourth pulley on the other surface. Building board coating equipment. 7. The building board coating device according to claim 2, wherein the building board coating apparatus is a positioning guide plate that positions a side edge of the building board, and the one side of the first timing belt. On the one hand, a positioning guide plate which is installed extending in the carrying direction of the building board and a side edge of the building board comes into contact during carrying, and a direction in which the building board is deflected from the carrying direction to the positioning guide board side. A building board coating device comprising: a skewing means for moving the building board. 8. The building board coating apparatus according to claim 7, wherein the skewing means is a plurality of carrying rollers that support the building board from below, and the direction is orthogonal to the axis of the carrying rollers. A building board coating device which is a skewed conveying roller in which the conveying roller is arranged so as to be inclined so that the direction deflected toward the positioning guide plate side from the conveying direction matches. 9. The building board coating device according to claim 7, wherein the skewing means is a support plate that supports the building board from below and extends in the transport direction, A building board coating device in which the building board is a slanting support board in which the building board is less slippery than the building side is farther. 10. The building board coating device according to claim 2, wherein a plurality of transport rollers supporting the building board from below are provided, and the number of conveyance rollers is greater than the speed of the first timing belt. A building board coating device equipped with a large number of conveying rollers that rotate at a high or low peripheral speed.