JP6574555B2 - Horizontal dust remover - Google Patents

Description

The present invention relates to a lateral dust removing apparatus that removes foreign matter adhering to a dust-deposited object (hereinafter sometimes referred to as a workpiece) such as a planar workpiece such as a film or panel.

Conventionally, an air knife or the like is used to remove foreign matter adhering to a planar dust-deposited object such as a film or panel, and air is blown at an acute angle from obliquely above the dust-deposited object. The direction of air blowing was 180 degrees with respect to the traveling direction of the object to be dusted, that is, the air was blown in the direction opposite to the traveling direction. The foreign matter peeled off from the object to be removed by air blow was sucked up by vacuum suction and collected. These conventional techniques will be specifically described below with reference to FIGS.

FIG. 8 shows one of the conventional dust removal methods. In order to remove the foreign matter 12 adhering to the moving planar dust-deposited object (work) 10, the surface of the dust-deposited object 10 is blown with an air blow 14 to The foreign object is pushed back 180 degrees with respect to the traveling direction of the dust removing object 10, that is, in the direction opposite to the traveling direction. As described above, the foreign matter is removed from the downstream side of the air blow 14 only by pushing back the foreign matter. However, since the foreign matter is accumulated on the upstream side and is not removed, there is a high possibility that the accumulated foreign matter flows downstream. . That is, it is not easy to blow off and remove foreign matter with an air knife.

FIG. 9 also shows one of the conventional dust removal methods. In order to remove the foreign matter 12 adhering to the dust target object 10, the dust target object 10 is blown at an acute angle from above with an air blow 14 and the foreign matter 12 is peeled off. And blown away. The blown-off foreign matter 12 is scooped up with a dust collector 16 and collected. However, there was a problem that this scooping did not work well.

FIG. 10 is a diagram for explaining the reason why the foreign material scooping in FIG. 9 does not work well. When air is blown obliquely from above, a vortex is generated between the reflected air flow 18 and the workpiece (dust-removed object) 10 and negative pressure is generated. FIG. 11 shows a situation in which the air flow 18 is attracted to the workpiece 10 and does not leave due to this negative pressure. If no tension is applied to the workpiece, the workpiece is sucked up by the air flow, and similarly, the air flow does not leave the workpiece (not shown). As described above, the air flow 18 along the work surface only pushes the foreign matter back to the upstream in the transport direction and does not guide the dust to the dust collector 16, so that the foreign matter accumulates on the work.

As shown in FIG. 11, the foreign matter 12 contained in the reflected air flow 18 (peeled from the object to be removed) floats slightly from the work 10, and therefore cannot be collected even if it is sucked up by a dust collector (see FIG. 10). Indicates a situation where some remain. The remaining foreign matter flows on the upstream work and flows again and is air blown again. However, since it is not completely recovered, it remains as a residual foreign matter that could not be removed.

As shown in FIG. 12, a part of the foreign matter 12 may not be collected by the dust collector 16. In order to avoid this, as shown in FIG. 13, when the dust collector 16 for reducing residual foreign matter is brought close to the workpiece 10 and vacuum suction is performed, the workpiece 10 and the dust collector 16 may come into contact therewith. . The workpiece 10 is scratched by the contact to make it defective. As described above, in the conventional example, it is difficult to completely remove foreign matters, and foreign matters remain easily.

In addition, the publicly disclosed prior art includes a panel body dust removal device (actual specification 2567191), a dust removal head (Japanese Patent Laid-Open No. 11-235559), a dust removal cleaning method and device (Japanese Patent Laid-Open No. 2010-162445). There is.

A panel body dust remover is a technology that discharges air from a traveling direction to a moving panel and collects dust from the opposite direction. This technique cannot prevent foreign matter from collecting dust. The dust removal head is a technology that discharges air from a traveling direction to a moving panel and collects dust from both directions. After all, the dust collection residue of the foreign material cannot be prevented. The dust removal cleaning method and apparatus discharge air from the center in the direction opposite to the moving direction of the moving panel, and collect dust in a direction perpendicular to both directions. Alternatively, air is discharged from both sides and collected at a right angle in the center. The remaining dust collection cannot be prevented. In either case, the foreign matter running in the direction parallel to the workpiece tends to be sucked up in the vertical direction, but the faster the foreign matter, that is, the air flow rate, the more sucked up and the remaining dust collected.

No. 2567191

JP 11-235559 A

JP 2010-162445 A

The present invention has an object to solve the above-mentioned disadvantages associated with the prior art, and a dust removing apparatus that efficiently removes foreign matters adhering to a planar dust-deposited object (work) such as a film or a panel to reduce residual foreign matters. I will provide a.

The dust removing apparatus according to the present invention blows an air blow on the surface of a moving planar planar object to be removed from an obliquely upward direction toward the upstream side in the right direction with respect to the traveling direction of the object to be removed. A plurality of first blow holes for separating attached foreign matter, the first blow holes arranged linearly in a direction transverse to the traveling direction, and an air flow substantially parallel to the surface by the air blow A first dust remover that removes the foreign matter from the surface by the first dust remover, and the foreign matter removed from the surface by the first dust remover on the downstream side of the air flow on the side of the dust-deposited object surface. The air dust is blown on the surface of the first dust collector that collects dust and the surface of the object to be dusted from the upper side obliquely from the upper side toward the left side slightly upstream of the traveling direction of the object to be dusted. Adhered foreign matter A plurality of second blow-off holes to be peeled, the second blow-off holes being linearly arranged in a direction transverse to the traveling direction, and the foreign matter is removed by an air flow substantially parallel to the surface by the air blow. The second dust remover to be removed from the surface and the foreign matter removed from the surface by the second dust remover are collected on the downstream side of the air flow on the side of the surface of the object to be removed. A second dust collector, and a gap is provided between the first dust remover and the second dust remover, and the first dust remover has an air flow at a left edge. Air blow is blown so that the air flow is generated from the position on the right side of the left edge to the right side of the left and right center so that the air flow is generated from the vicinity of the left edge to the range beyond the left and right center of the object to be removed. The first dust remover is The second dust removal is performed by blowing an air blow on the surface of the dust removal object so that the air flow is generated from the vicinity of the right edge of the dust removal object to the range beyond the right and left center of the dust removal object without hitting the right edge. The container blows an air blow on the surface of the dust removal object so that the air flow is generated from the vicinity of the left edge of the dust removal object to the range beyond the left and right center of the dust removal object without rolling the left edge.

According to the present invention, the first and second dust removers blow an air blow on the surface of the planar dust-deposited object obliquely from above to separate the foreign matter from the surface, and the air blow substantially flows parallel to the surface. An air flow is generated, and this air flow removes foreign objects to the side of the surface of the object to be removed, and dust is collected by a dust collector placed downstream of the air flow on the side of the surface. obtain. Since dust is collected on the side of the surface of the object to be removed, there is no possibility that the dust collector comes into contact with the surface of the object to be removed. In addition, according to the present invention, it is possible to efficiently remove foreign matter adhering to a planar dust-deposited object such as a film or a panel, thereby reducing residual foreign matter. In the first dust remover, an air blow is blown to the surface of the dust removal object in a direction slightly upstream in the right direction with respect to the traveling direction of the dust removal object. The air blow is blown to the surface of the object to be removed in a direction slightly upstream in the left direction with respect to the traveling direction of the dust, so that the foreign matter is returned to the upstream side, and the foreign matter can be removed more effectively and reliably. The air blower blows an air blow on the surface of the dust removal object so that the air flow is generated from the vicinity of the right edge of the dust removal object to the range beyond the left and right center of the dust removal object without hitting the right edge. The dust remover blows air on the surface of the object to be dust so that the air flows from the vicinity of the left edge of the object to be removed to the range beyond the left and right center of the object to be dusted without hitting the left edge. Since it may dedusted its entire width reliably while preventing fluttering of the dust removal object. Further, the first and second dust removers blow air blows from the plurality of first and second blowout holes to the surface of the dust removal object, respectively, and the first and second blowout holes are transverse to the dust removal object traveling direction. Therefore, it is possible to minimize the installation area of the entire first and second dust removers. Furthermore, since the first and second dust dispersers are arranged with a gap therebetween, vortex air current is not generated by the air flow of both.

FIG. 3 is a diagram for explaining Example 1; FIG. 6 is a diagram for explaining a second embodiment. FIG. 10 is a diagram for explaining Example 3; FIG. 10 is a diagram for explaining a fourth embodiment. FIG. 10 is a diagram for explaining a fifth embodiment. FIG. 10 is a diagram for explaining Example 6; FIG. 10 is a diagram for explaining Example 7; It is a figure for demonstrating the conventional dust removal system. It is a figure for demonstrating the conventional dust removal system. It is a figure for demonstrating the conventional dust removal system. It is a figure for demonstrating the conventional dust removal system. It is a figure for demonstrating the conventional dust removal system. It is a figure for demonstrating the conventional dust removal system.

In order to efficiently remove foreign matter adhering to flat dust-deposited objects such as films and panels and reduce residual foreign matter, a horizontal or slightly upstream flow is generated so that an air flow parallel to the surface of the dust-deposited object is generated. The air blow is generated obliquely from above, the air blow is performed in the entire dust removing device, and the dust is collected in the lateral position on the downstream side of the air blow. The dust removing device has a dust collection hood that collects air blown foreign matter, and the hood has a sectional area on the upstream side of the air blow that is smaller than a sectional area on the downstream side. Air blows beyond the center of the left and right with respect to the traveling direction of the dust removal object, and the tip side air blow air on the side opposite to the dust collecting side does not blow the tip end side of the dust removal object. Prevents the edges from being scooped, removes both the front and back surfaces of the object to be removed at the same time, removes the object to be removed from the left and right at the same time in the direction of travel, and creates a gap between the dust removal device on the left and the dust removal on the right It is preferable to neutralize static electricity of the object to be removed by filling the air ions upstream and downstream of the dust removing device.

Example 1 will be described with reference to FIG. FIG. 1 is a diagram for explaining a dust removal system of the present invention. Foreign matter 12 adhering to a planar dust-deposited object (work) 10 such as a film or panel is removed by air blowing 14 in the lateral direction. The air blow 14 is blown on the surface of the object to be dusted obliquely from above to separate the foreign matter from the surface, and further generates an air flow parallel to the surface in the lateral direction or slightly upstream from the traveling direction of the object to be dusted. The foreign material 12 is pushed along the surface by this air flow and eliminated.

Example 2 will be described with reference to FIG. 2a is a front view and FIG. 2b is a side view. FIG. 2 shows the structure of the method and apparatus for removing foreign matter adhering to the object to be removed of the present invention by air blowing 14. The dust blower 20 is supplied with air, and has a large number of blow holes (not shown) on the surface facing the work 10. The air blow 14 is blown from the obliquely upward direction toward the work 10 from a close distance. An air flow A is generated parallel to the surface 10S of the workpiece 10 and transverse to the traveling direction of the workpiece 10. The foreign matter 12 that has flowed while adhering to the workpiece 10 is removed by being blown laterally by this air blow. As apparent from FIGS. 2 a and 2 b, the dust remover 20 is formed in a rod shape that crosses the workpiece 10, and the blowout holes for blowing out the air blow 14 are in the longitudinal direction of the dust remover 20 , that is, in the direction in which the dust removal object is traveling A plurality of lines are arranged linearly in the horizontal direction . In the second embodiment, the dust removing device is sprayed on the surface 10S obliquely from above toward the surface 10S of the moving object to be dusted 10 to peel off the foreign matter from the surface, and further, the dust removing device is transverse to the traveling direction of the object to be dusted. An air blow 14 is generated in the direction to generate an air flow A substantially parallel to the surface 10S (an arrow parallel to the surface in FIG. 2), and the foreign matter 12 attached to the surface 10S is removed from the surface 10S by the air flow A. A dust remover 20 is provided.

A third embodiment will be described with reference to FIG. 3a is a plan view and FIG. 3b is a side view. FIG. 3 shows a dust remover and a dust collector, and further shows another plan in the air blow direction of the dust remover 20. In this case, the dust collector 22 is on the right side (side) with respect to the traveling direction of the workpiece 10. In the first and second embodiments, air is blown laterally and directly below the workpiece moving direction. However, in this third embodiment, the right direction is 120 degrees and the lower direction is 110 degrees with respect to the workpiece moving direction. Air blow. That is, the air blow is blown onto the workpiece 10 from an obliquely upward direction toward a slightly upstream direction. Since this has the effect of returning the foreign matter to the upstream side of the first and second embodiments, the foreign matter can be removed more effectively and safely for a workpiece moving at a higher speed. And the blowing hole which blows an air blow is linearly arranged in the horizontal direction like Example 2. FIG.

A fourth embodiment will be described with reference to FIG. 4a is a front view and FIG. 4b is a side view. FIG. 4 shows the dust collection method and structure of this proposal. A dust remover 20 faces the surface side of the workpiece 10, and a dust collector 22 is on the right side with respect to the traveling direction of the workpiece 10. The foreign material 12 that has flowed while adhering to the workpiece 10 is blown air from above with a dust wiper 20, is blown to the right by the air flow A, and is collected by the dust collector 22. And the blow-out hole which blows an air blow is linearly arranged in the horizontal direction like Example 2,3.

A fifth embodiment will be described with reference to FIG. 5a is a plan view, FIG. 5b is a front view, and FIG. 5c is a side sectional view. FIG. 5 shows a structure in which air is blown obliquely from above on the front and back surfaces of the workpiece. Dust removers 20 are provided on both the front and back surfaces, and a dust collector 22 is provided on the right side of the moving direction of the workpiece 10, that is, on the downstream side of the air flow . By simultaneously blowing the front and back surfaces of the workpiece 10, no mechanism such as a roll for supporting the workpiece 10 is required, and a completely non-contact dust removing operation is possible. And the blow-out hole which blows an air blow is linearly arranged in the horizontal direction like Example 2,3.

Each of the upper and lower dust dispersers 20 has a hood 20a, and collects the dust that has been dispelled without being scattered around. The cross-sectional area of the hood 20a is larger on the dust collector side than on the tip side. This is because the amount of air passing through the dust collector side is larger than the tip side. In addition, it is preferable to dispose static electricity removers 24 upstream and downstream of the dust eliminator 20 or the hood 20a and sprinkle ions 30 on the workpiece 10 to remove static electricity.

A sixth embodiment will be described with reference to FIG. FIG. 6 shows a method of simultaneously performing dust removal in both the left and right directions. As a result, the dust at the edge of the workpiece can be completely removed to prevent foreign matter from remaining. Further, the work 10 is prevented from being skewed to one side by air blow in one direction.

A seventh embodiment will be described with reference to FIG. FIG. 7 is a plan view. FIG. 7 shows a method of simultaneously performing dust removal in both the left and right directions by the first dust remover 20R and the second dust remover 20L . The dust removers 20R and 20L blow an air blow to the object 10 to be removed from obliquely upward as in the third to fifth embodiments, but the first dust remover 20R is slightly upstream in the right direction with respect to the traveling direction. Air blow is blown onto the surface toward the surface, and the second dust displacing device 20L blows air blow toward the surface toward the slightly upstream direction in the left direction with respect to the traveling direction. The dust removers 20R and 20L have first and second blowout holes linearly arranged in a direction transverse to the traveling direction of the dust removal object 10, and are attached to the surface of the dust removal object 10 by air blow. Remove foreign material. The air blow generates an air flow substantially parallel to the surface, removes the foreign matter from the surface to the left and right, and removes the removed foreign matter at the first and second dust collectors 22R on the downstream side of the air flow. Dust is collected by 22L. When air is blown only on one of the left and right sides, the workpiece 10 is skewed to one side, so it is preferable to blow air simultaneously in both the left and right directions. Further, it is preferable that the air blow is performed (1) beyond the left and right center of the workpiece 10 with respect to the traveling direction of the workpiece 10, and (2) the air blow air does not exceed the tip of the workpiece. When the condition (1) is not satisfied, that is, when the center of the left and right is not exceeded, the foreign matter remains in the center. When the condition of (2) is not satisfied , the side edges RS and LS are beaten by the air blow hitting the work left and right side edges RS and LS, and the work 10 flutters , causing a contact accident with the dust remover 20. Moreover, it is preferable that there is a sufficient interval between the left and right dust removers 20R and 20L (including the hood). If it is too close, a vortex airflow is generated between the two, so that the foreign matter that has been removed cannot be recovered and may remain. In addition, since the first and second blowout holes are both arranged in the lateral direction of the dust removal object 10, the occupied area of the dust removers 20 </ b> R and 20 </ b> L is substantially proportional to the width of the dust removal object 10. .

A Air flow 10 Dust object (work) 10S Surface 12 Foreign object 14 Air blow 20 Dust remover 22 Dust collector 24 Ionizer 30 Ion

Claims (6)

A plurality of pieces of foreign matter adhered to the surface are blown onto the surface of the moving planar dust-cleaning object from an obliquely upward direction by blowing an air blow in a direction slightly upstream from the traveling direction of the dust-cleaning object. A first blow hole having first blow holes arranged linearly in a direction transverse to the traveling direction, and removing the foreign matter from the surface by an air flow substantially parallel to the surface by the air blow. A first dust collecting device that collects foreign matter removed from the surface by the first dust removing device on the downstream side of the air flow on the side of the surface of the object to be removed. A dust container and a plurality of foreign substances adhered to the surface by blowing an air blow on the surface of the object to be removed from an obliquely upward direction toward the left slightly upstream from the traveling direction of the object to be removed. Second blowout A second blowout hole linearly arranged in a direction transverse to the traveling direction and removing the foreign matter from the surface by an air flow substantially parallel to the surface by the air blow; A dust remover, and a second dust collector for collecting the foreign matter removed from the surface by the second dust remover on the downstream side of the air flow on the side of the surface of the object to be removed. A gap is provided between the first dust remover and the second dust remover, and the first dust remover is configured such that an air flow hits the left edge of the object to be dusted. Air blow is blown onto the surface of the object to be dusted so that the air flow is generated from the vicinity of the left edge of the object to be dusted to the range beyond the left and right center of the object to be dusted. Dust removal without squeezing the right edge of the object Right side edge from the vicinity to the air stream to a range exceeding the lateral center of the dust object occurs, blows air blow onto the dust removal object surface, dust removal devices. The dust remover is formed in a rod shape that traverses the object to be dusted. The dust remover has a plurality of blow holes arranged in the longitudinal direction, and generates air blow by blowing the compressed air inside from the blow holes. The dust removing apparatus according to claim 1 , wherein: 3. The dust removing apparatus according to claim 1, wherein the air blow is performed in the entire dust removing apparatus. The dust removing device according to any one of claims 1 to 3 , further comprising a dust collecting hood for collecting air blown foreign matter, wherein the hood has an air blow upstream cross-sectional area smaller than a downstream cross-sectional area. Dust removal device. 5. The dust removing device according to claim 1, wherein the dust removing device simultaneously removes dust from the front and back surfaces of the object to be dusted. 6. 6. The dust removing device according to claim 1, wherein the dust is neutralized by filling the air ions upstream and downstream of the dust removing device with air ions.

Images