JP4814648B2 - ALC panel surface treatment equipment - Google Patents

Description

  The present invention relates to a surface treatment apparatus for an ALC (lightweight aerated concrete) panel used as an outer wall material of a building, for example. More specifically, the present invention relates to a surface treatment apparatus for reducing powder generated on the surface of the panel as much as possible when the ALC panel is moved.

  ALC panels are generally semi-cured by foaming and curing by adding aluminum powder as a foaming agent to an ALC raw material slurry containing silica, quicklime, cement, etc. The ALC block is taken out from the formwork and cut into a panel shape of a predetermined size with a cutting wire such as a piano wire that is tensioned with a predetermined tension. Next, the cut semi-cured ALC panel is cured with an autoclave or the like, and then subjected to surface treatment as appropriate to produce a product.

  On the surface of the ALC panel manufactured in this way, fine irregularities are produced when cutting into the panel shape with the above-mentioned wire, in particular, a tension-fixed wire, and the convex part is usually sharp and sharp with a sharp tip. Become. When the panel is rubbed with each other when the panel is moved such as when the panel is moved after curing, the crumpled convex portion is broken into powder. The powder generated on the surface of the ALC panel in this way is not only scattered by the wind and pollutes the surroundings, but also falls on the operator during panel construction, etc., causing a decrease in the work environment and construction efficiency. It was.

  Therefore, in Patent Document 1 below, a method has been proposed in which an ALC panel with less generation of powder is obtained by grinding the panel surface of the ALC panel with a brush. Specifically, for example, the surface of the ALC panel is ground with a roll-shaped or disk-shaped rotating brush, and the powder remaining on the surface of the ALC panel is collected with a dust collector such as a vacuum suction device as necessary. An ALC panel with less generation of odor is obtained. It has also been proposed to increase the grinding effect by sandwiching a sheet-like file such as a paper file in the brush.

  However, since the rotation direction of the rotating brush is the same as or opposite to the moving direction of the panel, there are the following problems. In describing the problem, first, the characteristics of the fine irregularities on the surface of the ALC panel generated when the wire is cut and the processing method of a general ALC panel will be described in detail.

  The fine irregularities on the surface of the ALC panel described above are obtained when the uncured ALC block before being heated and cured by an autoclave or the like is cut with a wire that has been tensioned with a predetermined tension, that is, the tension direction of the wire, that is, the wire longitudinal direction. As a result, the pattern becomes uneven in the direction perpendicular to the wire tension, that is, in the relative movement direction of the panel and the wire when the panel is cut.

  FIG. 5 is an enlarged view of the panel surface when the panel P is cut in a direction parallel to the above relative movement direction. Fine irregularities Pa and Pb are generated on the panel surface, and the convex portion Pa has a sharp tip. It has a sharp kerber shape. Further, the tip of the convex protrusion Pa is inclined in the direction opposite to the relative movement direction of the wire with respect to the panel at the time of cutting (rightward in the figure), and has a unified directionality.

  On the other hand, the ALC panel surface treatment apparatus is generally installed in an ALC panel processing apparatus, and in the layout of processing apparatuses in many ALC panel manufacturing plants, the ALC panel has a relative movement direction (see FIG. 5 is subjected to surface treatment while being conveyed in the left-right direction). Therefore, when the rotation direction of the rotating brush is the same as or opposite to the moving direction of the panel, that is, the panel conveying direction as in Patent Document 1, the relative moving direction between the rotating brush and the panel on the panel surface is the panel. The direction of relative movement between the wire and the ALC block at the time of cutting (the left-right direction in FIG. 5) is the same or the opposite direction, and the tension direction of the wire at the time of cutting, that is, the wire longitudinal direction is substantially perpendicular.

  Therefore, for example, the roll-shaped rotating brush B is arranged so that the central axis thereof is substantially perpendicular to the conveying direction of the ALC panel P, and when the ALC panel P is fed toward the rotating brush B, When the direction in which the brush tip rotates at the position of contact with the panel P and the direction in which the tip of the protrusion P of the panel P faces are opposite as shown in FIG. It will turn toward the tip of Pa.

  As a result, when the convex portion Pa is removed by the brush B, the destructive action by the brush B reaches the root of the convex shape convex portion Pa, and innumerable depressions are generated on the surface of the ALC panel as shown by the wavy line in FIG. There is a fear. This is because the destructive action due to the rotation of the brush acts on the entire convex portion Pa, and when the convex portion Pa is peeled off from the panel, it is peeled off to a part of the panel surface. This stripped recess not only deteriorates the appearance of the panel, but also causes an increase in the amount of paint applied and / or uneven coating in the case of finish coating, resulting in economic and quality problems. It becomes.

  On the other hand, when the tip of the brush moves in the direction in which the tip of the convex protrusion Pa faces as shown in FIG. 6, the amount of grinding of the protrusion Pa by the brush B is small and the tip is ground. There is a problem in that a part Pa ′ of the convex portion Pa enters a fine uneven valley portion (concave portion) on the remaining panel surface, making it difficult to remove it. Also, as shown in FIG. 6, if the direction of the unevenness is the same as the direction of rotation of the brush, grinding dust that has entered the valley of the unevenness will be disturbed by the remaining convex portion even if it tries to discharge with the brush. As a result, the powder remains on the panel surface.

  In addition, as described in Patent Document 1 (particularly paragraph [0017]), when the movement direction of the panel and the rotation direction of the rotating brush are the same, the ground powder tends to remain on the panel, You need a more powerful dust collector. On the other hand, if the moving direction of the panel and the rotating direction of the rotating brush are opposite, the amount of ground powder that remains on the panel surface is small, but after the brush has passed through the panel Fall down. It is necessary to collect the falling powder with a dust collector so that it does not scatter around. In that case, a dust collector that covers a wide range of the brush rotation direction over at least the tangential length of the brush and the grinding surface is required. It becomes. This increases the size of the dust collection port, which is not preferable from the viewpoint of dust collection efficiency.

  Further, when a disk-shaped rotating brush is used, since it rotates with respect to the panel processing surface, there is a range in which the forming direction of the unevenness and the rotating direction of the brush are the same, and there is a risk that powder accumulates in the recess as described above. There is. In the case of a disc-shaped brush, powder is scattered in all directions by the rotation of the disc. Since the scattered powder accumulates on the grinding surface, a large dust collecting device that covers the entire disk is required to remove it by suction.

  In the method of grinding the surface of the ALC panel using a roll or disk-shaped rotating brush, the brush wears unevenly according to the type, width, and length of the panel that is frequently processed in the process of processing various ALC panels. Therefore, when other panels are processed, there is a possibility that a portion where the brush and the ALC panel surface do not come into contact with each other, resulting in troubles such as management of the wear state of the brush becomes complicated.

JP-A-5-278020

The present invention has been proposed in view of the above-mentioned problems, and its object is to cut wires such as piano wires employed in many ALC panel manufacturing factories, particularly wires that are tension-fixed. The problem of the powder generated on the surface of the ALC panel that was cut in step 1 is eliminated. Especially, the powder remaining on the surface of the ALC panel and the powder generated when the panels rub against each other are extremely small, and the uneven wear of the brush is suppressed to manage the equipment. An object of the present invention is to provide an ALC panel surface treatment apparatus that is simple, suppresses scattering of grinding powder, and saves space.

  In order to achieve the above object, an ALC panel surface treatment apparatus according to the present invention has the following configuration. That is, a surface treatment apparatus for grinding irregularities on the surface of an ALC panel generated when cutting an uncured ALC block into a panel shape with a wire tensioned with a predetermined tension, which is disposed on an endless track. The surface of the ALC panel after curing is ground while running the brush in a direction substantially parallel to the wire tension direction when the brush is cut into a panel shape with the wire with respect to the ALC panel.

  As described above, the surface of the ALC panel after curing was ground while running the brush on the endless track body in a direction substantially parallel to the wire tension direction together with the endless track body. In this case, the brush acts from the side with respect to the direction in which the tip of the convex part faces, and the destructive action is not transmitted to the base of the convex part, and the panel surface is ground so as to grind so that a dent is generated. There is nothing. Further, the grinding powder is smoothly discharged without being disturbed by the fine irregularities on the surface of the ALC panel.

  Moreover, since the scattering direction of the grinding powder is limited to one direction, the scattering direction of the grinding powder is limited to one place. That is, if it is arranged so that the scattering direction is other than the surface of the ALC panel to be processed, the grinding powder will not be re-deposited on the processing surface, so it is not necessary to perform vacuum suction to the grinding surface. Furthermore, in the present invention, because of the structure, the brush contacts the ground surface evenly over the entire tip, so that uneven wear of the brush does not occur.

  Further, in many factories, the ALC panel is processed while being transported in the direction of forming the unevenness, and the transport direction is the length direction of the panel. In other words, according to the ALC panel surface treatment method of the present invention, the brush travels in parallel with the width direction of the panel, so that the space of the apparatus can be reduced. In particular, the surface treatment apparatus for the ALC panel is generally installed. The ALC panel processing apparatus can be installed without increasing the installation space, can be easily introduced into existing processing equipment, and is economical with little equipment investment.

  In addition, a pair of upper and lower endless track bodies on which the brushes are arranged may be provided, and the ALC panel to be ground may be moved and transferred between the endless track bodies. In such a case, one transfer step of the ALC panel is performed. With this, both sides of the panel can be ground simultaneously and easily and quickly. Further, a panel restraining means for preventing the ALC panel from being lifted by the contact pressure of the brush may be provided as necessary. In such a case, the amount of the brush applied to the panel surface and the contact pressure are constant. In addition, a more stable grinding effect can be exhibited.

Furthermore, when the endless track body is configured to be movable in a direction in which the endless track body is in contact with or separated from the surface of the ALC panel, the depth of contact and the contact pressure of the brush provided on the endless track body to the panel surface side can be appropriately adjusted, A plurality of types of panels having different thicknesses can be ground. The prevention provided with a tensioning means for applying a predetermined tension to the endless track member, providing a guide member for guiding the upper Symbol endless track member in a direction substantially parallel to the surface of the ALC panels, the slack of the endless track member Since the traveling brush can be applied with a substantially uniform contact pressure in a direction substantially parallel to the surface of the ALC panel, a stable grinding effect can be exhibited over the entire surface of the ALC panel in the brush traveling direction.

  Further, the surface treatment apparatus can be provided with a dust collecting device such as a vacuum suction device for sucking and removing grinding powder generated when the ALC panel surface is ground with the brush, if necessary. If the dust collection port of the dust collector is always opened toward the front side of the brush traveling direction when the brush grinds the surface of the ALC panel, the grinding dust whose scattering direction is limited to one direction can be sucked efficiently. Can be removed. Further, the dust collector may be disposed at least one place with respect to one endless track body or a pair of upper and lower endless track bodies, so that a sufficient suction removal effect can be obtained with a minimum equipment investment, and the working environment is improved. And it is effective in improving dust collection efficiency.

  Hereinafter, the present invention will be specifically described based on embodiments shown in the drawings. FIG. 1 is a perspective view of a schematic configuration showing an embodiment of an ALC panel surface treatment apparatus according to the present invention, FIG. 2 is an enlarged front view of a brush device used in the surface treatment apparatus, and FIG. The front view which shows the specific structural example of a surface treatment apparatus, the same figure (b) is the side view, FIG. 4 is AA expanded sectional drawing in Fig.2 (a).

  The surface treatment apparatus 1 of the present embodiment is provided in a conveyor 2 that conveys the cured ALC panel P. In the present embodiment, the conveyor 2 has a large number of conveyance rollers as shown in FIGS. 1 and 3. A roller conveyor is used in which 3 is arranged in parallel with the panel conveying direction (frontward direction in FIG. 1, arrow phrase in FIG. 3B) at a predetermined interval so as to be rotatable.

  In addition, although the cutting direction by the cutting wire and the conveying direction by the conveyor 2 in the manufacturing process of the ALC panel P are appropriate, in this embodiment, although omitted from the drawings, the width of the panel P The wire and the ALC panel are moved relative to each other in the longitudinal direction of the panel by a cutting wire (not shown) fixed in a tensioned state with a predetermined tension in a direction (left and right in FIG. 1). FIG. 1 and FIG. 3 illustrate a configuration in which the panel P is conveyed in the longitudinal direction with the cut surface at that time being up and down.

  As shown in FIG. 1, the surface treatment apparatus 1 includes a pair of brush devices 5, 5 arranged on both upper and lower surfaces of the ALC panel P conveyed by the conveyor 2, and cutting powder generated by each brush device 5. The brush device 5 includes a dust collecting device 6 such as a vacuum suction device for sucking and removing. As shown in FIG. 2, each brush device 5 is on an endless track body 9 such as a chain suspended around a pair of left and right sprockets 8. Further, a large number of brushes 10 are continuously arranged at a predetermined interval. In the figure, 13 is a tension applying means such as an air cylinder for applying a predetermined tension to the endless track body 9, and 14 is a guide member for guiding the endless track body in a direction substantially parallel to the surface of the ALC panel P. .

  Each of the brushes 10 has a structure in which a large number of wires 11 such as steel wires and resin wires are combined into one bundle with a holder or the like and attached to the outer peripheral surface of the endless track body 9 via an attachment 12 in the figure. However, the configuration can be changed as appropriate. For example, a belt-like brush in which a rubber belt or a wire is used as the endless track 9 or the wire 11 constituting the brush is directly planted on the endless track 9. But you can.

  As the material of the brush 10, various brushes using the wire 11 such as the steel wire and the resin wire as described above can be used. In order for these wires 11 to enter fine irregularities on the surface of the ALC panel and to discharge fine powder, the diameter of the wires 11 is preferably about 0.1 mm to 2.0 mm. If the diameter is 0.1 mm or less, the brush becomes soft and the effect of grinding fine irregularities decreases, and if it is 2.0 mm or more, the irregularities do not enter and there is a risk that good powder cannot be discharged. Because there is.

  Each of the brush devices 5 is accommodated and disposed in substantially box-shaped cases 15a and 15b opened on the side facing the ALC panel P conveyed by the conveyor 2 as shown in FIGS. 3 and 4, respectively. The cases 15a and 15b can move up and down along a guide rail 23 provided on a vertical side 21 of a rectangular frame 20 as shown in FIG. Particularly, in the case of the figure, the cases 15a and 15b are configured to be independently movable up and down along the guide rail 23 via the sliders 16 provided at both ends thereof. Along with the brush device 5 in each case, 15b is movable in a direction in which it contacts and separates from the surface of the ALC panel P passing between the brush devices 5 and 5.

  Each of the cases 15a and 15b is provided with driving means for moving (raising and lowering) them together with the brush device 5 in a direction in contact with and separating from the panel surface. The configuration of the driving means is appropriate. However, in the case of the figure, a screw rod 25 and a motor 26 for moving the screw rod up and down are provided as driving means for the upper case 15a, and the rotation of the motor 26 causes the horizontal shafts 27a and 27b to pass through. When the female screw member (not shown) rotates and the screw rod 25 meshing with the female screw member moves up and down in the cylindrical cover 28, the upper case 15a connected to the lower end of the screw rod 25 moves up and down. It is a configuration. In addition, an air cylinder 29 is used as a driving means for the lower case 15, and the air cylinder 29 is placed and fixed on the lower side 22 b of the frame 20, and the piston rod 29 a of the air cylinder 29 is fixed. Thus, the lower case 15 is raised and lowered.

  The dust collector 6 is provided on the lower side of the upper case 15a and on the upper side of the lower case 15b. Each dust collector 6 is rotated by a motor such as a motor not shown in the figure. A driven air suction fan is built in, and the powder is sucked and removed together with air from the dust collection port 6a of each dust collector 6 by rotation of the fan. Each dust collecting port 6a of each dust collecting device 6 opens toward the front side in the running direction on the panel side of the brush 10 in the brush device 5 in each case 15a, 15b.

  The surface treatment apparatus 1 according to the present embodiment is provided with a panel holding means 30 for preventing the panel from being lifted by the contact pressure of the brush 10 with respect to the ALC panel P. In the case of the figure, the panel holding means 30 has pinch rollers 31 arranged on both front and rear sides of the frame 20 in FIG. 3A as shown in FIG. Each pinch roller 31 is pressed against the surface of the panel P via the bearing members 32 by a pair of air cylinders 34 that are rotatably arranged on the bearing members 32 and attached to the frame 20 via brackets 33. This is a configuration that prevents the panel P from being lifted.

  When the ALC panel conveyed by the conveyor 2 is ground by the brush device 5 by the surface treatment device 1 configured as described above, one of the pair of sprockets 8 and 8 of each brush device 5 is illustrated in the drawing. By driving with a motor such as a motor that is omitted, the endless track 9 is rotated, whereby the brush 10 runs in the same direction and the surface of the panel P is ground.

  In this case, the traveling direction of the brush 10 is to travel in a direction substantially parallel to the tension direction (wire longitudinal direction) of the wire when the ALC panel P is cut with the cutting wire as described above. In the embodiment, as described above, the vehicle travels in the panel width direction (the direction of arrow a in FIG. 1). Further, the distance between the two sprockets 8 and 8 in each brush device 5 in the illustrated example is formed wider than the width dimension of the ALC panel P, so that the brush provided on the endless track 9 runs over the entire length in the width direction of the ALC panel P. Is configured to do.

  By setting the traveling direction of the brush 10 as a direction substantially parallel to the tension direction of the cutting wire as described above, the fine unevenness generated at the time of cutting is the relative movement direction between the cutting wire and the panel as described above. In the present embodiment, the brush 10 is formed in the longitudinal direction of the panel. However, since the brush 10 is made to travel in a direction substantially parallel to the tension direction of the wire, in the present embodiment, substantially in the panel width direction, The ridges of the ridges are not protruded from the roots, or the tips of the ridges are chipped small and the chipped powder does not remain hidden behind the ridges. In addition to being ground with a brush 10 in a direction substantially perpendicular to the direction, the powder can be leveled flatly, and the powder generated during grinding can be well eliminated without accumulating in irregularities.

  Note that, as in the above embodiment, a tension applying means 13 such as an air cylinder that applies a predetermined tension to the endless track body is provided, and a guide member that guides the endless track body in a direction substantially parallel to the surface of the ALC panel. 14 is provided, it is possible to prevent the orbiting body from bulging or swinging outward due to the centrifugal force caused by the rotational movement of the endless orbiting body 9, and the brush 10 is applied to the surface of the ALC panel P with good stability. Can do. As a result, it is possible to satisfactorily grind the uneven shape as described above.

  Further, when the panel surface is pressed by the panel holding means 30 such as the pinch roller 31 as in the above embodiment, it is possible to satisfactorily prevent the panel P from being lifted upward by the contact pressure of the brush 10 against the ALC panel P. At the same time, it is possible to prevent left and right blurring with respect to the traveling direction of the panel P. As a result, since the amount of contact of the brush 10 to the ALC panel P and the contact pressure can be kept constant, it becomes possible to grind evenly the uneven shape.

  Further, if the brush device 5 in which the brush 10 is arranged on the endless track body 9 as described above is configured to be movable in a direction in which the brush device 5 is in contact with or separated from the surface of the ALC panel P, the brush to the ALC panel P can be obtained. 10. The direction in which the brush device 5 is separated from the panel in order to prevent excessive grinding when the application amount of 10 and the contact pressure can be easily adjusted and the travel of the panel P is temporarily stopped. Can be evacuated. Further, in the case where the brush devices 5 are provided on both the upper and lower sides of the panel as in the above-described embodiment, it is possible to move either one of them, in particular, the upper brush device, or both of the brush devices so as to be movable. Since various different ALC panels P can be surface-treated with the same apparatus, it is economical.

  In the above configuration, the ratio of the travel speed of the brush 10 to the transport speed of the ALC panel P (the travel speed of the brush 10 ÷ the transport speed of the ALC panel P) is preferably adjusted to be 3-10. Generally, in many ALC panel manufacturing factories, the transport speed of ALC panels in processing machines is 10 m / min to 50 m / min, and when the speed ratio is less than 3, the transport speed of ALC panels P is high. Therefore, the unevenness caused by cutting the ALC that has not been cured in the autoclave with a wire is not parallel to the tension direction with respect to the ALC panel surface after the autoclave curing. It becomes difficult to discharge the powder. Further, even if the speed ratio is 10 or more, the effect does not change so much and it is not economical.

  When the brush 10 on the endless track 9 in the brush device 5 is run and the surface of the ALC panel P is ground as described above, the powder (cutting powder) generated during the grinding together with the brush 10 in its running direction, FIG. In this case, it is transferred in the panel width direction, but if the dust collecting device 6 such as a vacuum suction device is arranged in that direction as in the above embodiment, the cutting powder can be easily removed. In particular, in the case of the figure, the brush devices 5 are arranged on both upper and lower sides of the ALC panel conveyed by the conveyor 2 as described above, and each of the above-mentioned collections toward the front side in the running direction on the panel side of the brush 10 in each brush device 5. Since the dust collection port 6a of the dust device 6 is opened, the cutting powder can be removed extremely efficiently.

  In the above embodiment, the brush devices 5 are arranged on the upper and lower surfaces of the ALC panel conveyed by the conveyor 2, and the dust collecting devices 6 are provided corresponding to the brush devices 5. However, one common dust collecting device is provided. 6, the cutting powder discharged by the both brush devices 5 may be removed by suction.

  Hereinafter, specific examples in the case where an ALC panel is manufactured using the above-described ALC panel surface treatment apparatus will be described.

[Example 1]
A steel wire having a diameter of about 0.25 mm is used as the wire rod 11 constituting the brush 10 in the brush device 5 of FIGS. 1 to 4, and the thickness of the brush 10 in a direction substantially parallel to the endless track 9 is 30 mm. The width (width in the direction perpendicular to the surface in FIG. 2) was 60 mm, and the brush length (length of the wire 11) was 40 mm. The brush 10 was continuously attached to the entire outer periphery of the endless track 9 made of a chain at intervals of about 76 mm.

  As an ALC panel P to be processed, a piano wire having a diameter of 0.8 mm is tensioned and fixed as a cutting wire with a predetermined tension, and the ALC block is relatively moved, cut into a panel shape, and then cut by an autoclave. What was formed by heat curing and having a panel thickness of 100 mm, a panel width of 600 mm, and a panel length of 1800 mm was used.

With respect to the ALC panel P, the positional relationship between the brush tip and the ALC panel processing surface was adjusted so that the pressing amount of the brush tip was 1 mm. Then, the endless track body 9 is rotated by a prime mover not shown in the figure, and the brush 10 travels along the panel surface. The travel speed of the brush 10 is adjusted to 120 m / min using an inverter, and the ALC panel P is It was moved relative to the brush device 5 and cases 15a and 15b at a speed of 30 m / min in the longitudinal direction. It should be noted, was a brush speed / panel conveying speed = 4.0.

The ALC panel which processed the panel surface on the above conditions was laminated | stacked, the weight of the produced powder was measured by shifting the uppermost panel by the panel width in the width direction supposing the construction site. The collected powder was converted to weight per unit area (g / m ² ). As a result, 4 g / m ² of powder was obtained. Further, most of the grinding powder generated when the panel surface was treated with the brush was vacuum sucked and was not scattered around.

[Comparative Example 1]
As a comparative example with respect to Example 1, an ALC panel manufactured under the same conditions as in Example 1 was applied to a 300 mm diameter cylindrical brush made of steel wire with a diameter of 0.25 mm (a cylindrical roller with a diameter of 220 mm). The surface was ground with a brush having a brush part length of 40 mm.

  In accordance with the prior art, the cylindrical brush with respect to the ALC panel so that the rotation axis thereof is parallel to the wire tension direction when the uncured ALC block is cut with a fixed wire that is tension-supported between two points. It was arranged on both front and back sides of the ALC panel after curing. That is, in this example, the panel width direction and the axial direction of the cylindrical brush are arranged in parallel. In addition, the rotation direction of the brush is such that the rotation direction of the brush tip at the position in contact with the panel is opposite to the direction in which the tip of the protrusion is facing. The positional relationship between the brush tip and the ALC panel processing surface was adjusted so that the pressing amount of the brush tip was about 1 mm.

  Then, the above cylindrical brush was rotated under the condition of 100 rpm, and the ALC panel was opposed at a speed of 20 m / min (the maximum running speed of the brush tip was 94.2 m / min, and the brush speed / panel moving speed = 4. .7). The amount of powder was evaluated in the same manner as in Example 1 for the ALC panel whose surface was treated under the above conditions. As a result, 15 g of powder was obtained. In addition, the processed panel surface had irregularities formed by stripping innumerable protrusions. Further, although the dust collecting ports of the dust collecting device were arranged before and after the rotation direction of the cylindrical brush, the grinding dust was scattered around and a small amount was deposited on the grinding surface.

  As is clear from the above comparison, the amount of powder emitted from the ALC panel surface-treated in Example 1 according to the present invention is significantly reduced as compared with the case of Comparative Example 1 according to the conventional example. It was found that the surface properties were good and the powder scattering was very small. Moreover, it has confirmed that the powder | flour which generate | occur | produces at the time of surface treatment can be favorably suction-removed by arrange | positioning a dust collector based on this invention.

  As described above, according to the surface treatment apparatus for an ALC panel according to the present invention, it is possible to satisfactorily remove fine irregularities generated on the panel surface when cutting with a wire and level the panel surface more flatly. Further, since the surface treatment can be performed stably and satisfactorily for a long time regardless of the type of the panel, it is effective and suitable as a surface treatment apparatus for this type of panel.

1 is a perspective view of a schematic configuration showing an embodiment of a surface treatment apparatus for an ALC panel according to the present invention. The enlarged front view of the brush apparatus used with said surface treatment apparatus. (A) is a front view which shows an example of specific embodiment of the surface treatment apparatus of the ALC panel by this invention, (b) is the side view. AA sectional drawing in Fig.3 (a). Explanatory drawing which shows an example of the conventional ALC panel surface treatment state. Explanatory drawing which shows the other example of the conventional ALC panel surface treatment state.

Explanation of symbols

P ALC panel 1 Surface treatment device 2 Conveyor 3 Transport roller 5 Brush device 6 Dust collection device 6a Dust collection port 8 Sprocket 9 Endless track body 10 Brush 11 Wire 12 Attachment 13 Tension applying means 14 Guide members 15a, 15b Case 16 Slider 20 Frame DESCRIPTION OF SYMBOLS 21 Vertical side 22a, 22b Horizontal side 23 Guide rail 25 Screw rod 26 Motor 27a, 27b Horizontal shaft 28 Cover 29 Air cylinder 30 Panel control means 31 Pinch roller 32 Bearing member 33 Bracket 34 Air cylinder

Claims (6)

  A surface treatment apparatus for grinding irregularities on the surface of an ALC panel generated when cutting uncured ALC into a panel shape with a wire tensioned with a predetermined tension, and a brush disposed on an endless track, A surface treatment apparatus for an ALC panel, wherein the surface of the ALC panel after grinding is ground while running in a direction substantially parallel to a wire tension direction when the ALC panel is cut into a panel shape with the wire.   The surface treatment apparatus for an ALC panel according to claim 1, wherein a pair of upper and lower endless track bodies on which the brushes are arranged are provided, and the ALC panel to be ground is moved and conveyed between the endless track bodies.   The surface treatment apparatus for an ALC panel according to claim 1 or 2, further comprising panel restraining means for preventing the ALC panel from being lifted by the contact pressure of the brush.   The surface treatment apparatus for an ALC panel according to any one of claims 1 to 3, wherein the endless track is configured to be movable in a direction in which the endless track is in contact with or separated from the surface of the ALC panel. Provided with a tensioning means for applying a predetermined tension to the endless track member, the upper Symbol endless track member to claim 1 provided with a guide member for guiding in a direction substantially parallel to the surface of the ALC panels A surface treatment apparatus for an ALC panel as described.   A dust collector for sucking and removing grinding powder generated when the ALC panel surface is ground with the brush is provided, and the dust collection port of the dust collector is a brush traveling direction when the brush grinds the ALC panel surface. 2. The surface treatment apparatus for an ALC panel according to claim 1, wherein the surface treatment apparatus is always opened toward the front side.

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