JP2012143687A - Dust removal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust removal device which can suck and remove, without difficulty, not only powdery dust such as paper powder but also long dust such as string-shaped dust and band-shaped dust or longer dust.SOLUTION: The dust removal device removing dust stuck onto a surface of a planar work 1 running in one direction comprises an air suction chamber 6 which is air-communicated with a vacuum suction device and the surface of which facing the work 1 is opened 4, a rotary brush 7 which is provided in the air suction chamber 6 so as to be able to slide-contact with the work 1, a motor 10 which drives the rotation of the rotary brush 7 and a fine-toothed comb 13 which is provided in the air suction chamber 6 so that a tip part thereof invades between brushes 9 of the rotary brush 7 and which is used for removing dust stuck to the rotary brush 7.

Description

  The present invention relates to a dust removing device which is provided in a conveyance line for a planar work such as corrugated paper and removes paper dust, cutting waste and the like adhering to the surface of the work by vacuum suction.

  For example, if dust such as paper dust or cutting waste generated during cutting remains attached to the surface of the corrugated paper, printing on the corrugated paper often results in defective parts due to areas where no ink is placed. It was. As shown schematically in FIG. 6, the dust removing device shown in Patent Document 1 below is connected to a vacuum suction device, and an opening a forms an intake chamber c facing the surface of a work b such as corrugated paper, A rotary brush d is provided in the intake chamber c, a nozzle e is provided so as to be close to or in contact with the rotary brush d, and dust adhering to the rotary brush d is sucked and removed by the nozzle e.

Japanese Patent No. 312370

  However, in the structure of the conventional dust removing device, there is a possibility that dust attached to the rotating brush cannot be sufficiently removed such that long thread-shaped or strip-shaped cutting waste is not sucked by the nozzle and clogs the nozzle hole.

The dust removing apparatus according to the present invention is an apparatus for removing dust adhering to the surface of a planar workpiece traveling in one direction, which is ventilated with a vacuum suction device. An air intake chamber having an opening facing the surface, a rotating brush provided in the air intake chamber so as to be slidable with the workpiece, a motor for rotationally driving the rotating brush, and a tip portion in the brush of the rotating brush. It is characterized by comprising a scissors comb which is provided in the intake chamber so as to invade and scrapes off dust adhering to the rotating brush.
Further, the present invention is characterized in that, in the dust removing device, the scissors comb is provided in a hanging shape with the tip facing downward so as to hit the rising side portion of the brush when the rotating brush rotates in the intake chamber. To do.
Further, the present invention is characterized in that, in the dust removing apparatus, the rotating brush has a brush fixed on the outer periphery of the rotating shaft so as to be spiral in which the torsion direction is reversed at a central portion in the longitudinal direction.

  In the dust removing apparatus according to the present invention, not only powdery dust such as paper dust, but also long or large dust such as thread or belt can be sucked and removed without difficulty.

The top view of the dust removal apparatus which concerns on this invention. The cross-sectional view of the dust removing apparatus according to the present invention. The longitudinal cross-sectional view of the dust removal apparatus which concerns on this invention. The perspective view of the rotating brush of the dust removal apparatus which concerns on this invention. The perspective view of the rotating brush of the dust removal apparatus which concerns on this invention. A cross-sectional view of a conventional dust removing device.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a conveying line for a planar workpiece 1 such as corrugated paper conveyed horizontally in the direction of arrow A, 2 is a dust removing device supported in a transverse manner on the upper portion of the workpiece 1, and the dust removing device is As shown in FIG. 2, a slit-like opening 4 is formed on the lower surface of the casing 3 that is long in the width direction of the workpiece 1, and the other end of the intake hose 5 is connected to the casing 3 at one end. Is connected to a vacuum suction device (not shown) comprising a dust collection filter and an intake blower, thereby forming an intake chamber 6 in the casing 3 for ventilating with the vacuum suction device. As shown in FIG. 4, 7 is a rotating brush in which the brush 9 is closely planted on the outer peripheral surface of the rotating shaft 8, and the rotating brush 7 rotates on the motor 10 provided at one end of the casing 3. One end of the shaft 8 is directly connected and the other end of the rotating shaft 8 is pivotally supported on the other end of the casing 3, so that the outer peripheral portion of the rotating brush 7 protrudes from the opening 4. When the motor 10 is driven, the rotating brush 7 rotates in the direction of arrow B, and the tip of the brush 9 is in sliding contact with the upper surface of the workpiece 1. That is, by rotating the rotating brush 7 in the direction of arrow B, the tip of the brush 9 is in sliding contact with the upper surface of the workpiece 1 so as to face the conveying direction of the workpiece 1.

  Thus, a bolt 11 that penetrates the casing 3 in the width direction is provided on the upper part of the rotary brush 7, and the bolt 11 is inserted into the collars 12 a and 12 b in the intake chamber 6, and between the collars 12 a and 12 b. By pinching the upper edge portion of the comb 13 and tightening the nut 14, the scissor comb 13 is supported in a suspended manner in the intake chamber 6 so that the tip is directed downward. Since the collar 12a is longer in the axial direction than the other collar 12b, the scissors comb 13 is arranged so as to be shifted in the width direction with respect to the rotating brush 7, and the tip of the scissors comb 13 is located in the brush 9 of the rotating brush 7. Further, the scissors comb 13 is supported so as to enter and hit the rising side portion of the brush 9 when the rotating brush 7 rotates in the direction of arrow B.

  In this dust removing device, the inside of the suction chamber 6 is decompressed by operating a vacuum suction device, and outside air is sucked from the opening 4, and at the same time, the rotating brush 7 is rotated to bring the tip of the brush 9 into sliding contact with the upper surface of the work 1. As a result, dust such as paper dust on the surface of the work 1 adheres to the brush 9 and is brought into the suction chamber 6, and the tip of the scissors comb 13 enters the gap of the brush 9 in the suction chamber 6. , The dust is scraped off by the scissors comb 13 and sucked into the vacuum suction device through the suction hose 5. In this way, in this dust removing device, dust that has adhered to the rotating brush 7 and brought into the intake chamber 6 is scavenged by the scissors comb 13, so that not only powdery dust such as paper dust but also rotation Even if long dust such as thread or belt is attached to the brush 7, the scissors comb 13 can reliably remove the dust without difficulty.

  On the other hand, the rotating brush 7 shown in FIG. 5 is formed by fixing the brush 9 on the outer periphery of the rotating shaft 8 so as to form a spiral in which the twist direction is reversed at the center in the longitudinal direction. Is driven in rotation so that the tip of the brush 9 is in sliding contact with the surface of the workpiece 1 in order to wave in the workpiece width direction. Therefore, the belt 9 attached to the surface of the workpiece 1 has a long or large size. However, it is held between the brushes 9 of the rotating brush 8, brought into the intake chamber 6 and scraped off by the scissors comb 13. For this reason, according to the dust removing apparatus provided with the rotating brush 7 shown in FIG. 5, even larger dust or various shapes of dust can be sucked and removed without difficulty. In this rotary brush 7, since the brush 9 is planted with the twist direction reversed at the center in the longitudinal direction, the dust on the surface of the work 1 hits the brush 9 and moves only in one width direction, It is possible to avoid the dust collecting only in one corner.

For this reason, in this dust removing device, dust attached to the work 1 can be more completely removed without clogging the nozzle hole as in the prior art, and maintenance-free operation can be performed for a long time without fear of trouble. Is possible.
In this embodiment, the dust removing device 2 is provided so as to face the upper surface of the work 1, but the dust removing device 2 may be provided so as to face the lower surface of the work 1.

1 Work 2 Dust Removal Device 3 Casing 4 Opening 6 Intake Chamber 7 Rotating Brush 8 Rotating Shaft 9 Brush 10 Motor 13 Comb

Claims (3)

  An apparatus for removing dust adhering to the surface of a planar work piece traveling in one direction, wherein the suction chamber is ventilated with a vacuum suction device and the surface facing the work is open. A rotating brush that is slidably contacted with a workpiece, a motor that rotationally drives the rotating brush, and dust attached to the rotating brush that is provided in the intake chamber so that the tip portion enters between the brushes of the rotating brush. A dust removing device comprising a scissors comb.   2. The dust removing device according to claim 1, wherein the scissors comb is provided in a drooping manner with its tip facing downward so as to hit the rising side portion of the brush when the rotating brush rotates in the intake chamber.   The dust removing apparatus according to claim 1 or 2, wherein the rotating brush has a brush planted on the outer periphery of the rotating shaft so as to have a spiral shape in which the twist direction is reversed at a central portion in the longitudinal direction.

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