JP2007069131A - Dust removing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust removing apparatus for resolving a conventional problem that dust blown off by an air blowing device is attracted by and adhered on the surface of a charged vehicle body again to cause incomplete removal of dust, and therefore, to produce a flaw on the surface of the vehicle body by contact of the dust therewith. <P>SOLUTION: The dust removing apparatus is provided which comprises an antistatic device for removing static electricity charged on products for the purpose of removing dust, and an air blowing device. Alternatively, the dust removing apparatus is provided which comprises an antistatic device for removing static electricity charged on products for purpose of removing dust, an air blowing device, and a dust collecting device. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a dust removing device in an automobile manufacturing factory or the like, and more particularly, to a dust removing device having an electrostatic discharge air blow nozzle having an ion generator and an air blow nozzle.

  It is known that static electricity is generated on the surface of a metal product such as an automobile body being manufactured in an automobile manufacturing factory or the like, and dust adheres to the surface of the automobile body or the like due to the static electricity. Especially on sunny days, static electricity is easily generated and a large amount of dust adheres to the surface of an automobile body or the like.

  Conventionally, strong air is blown out from an air blow nozzle by a simple air blow device, and the dust attached to the surface of the vehicle body is simply blown away by the static electricity charged on the surface of the vehicle body or the like.

  However, in a device that blows off dust on the surface of an automobile body or the like by a simple air blow device as in the prior art, since static electricity generated on the vehicle body is not removed, the dust blown off from the vehicle body surface by the air blow device is charged In many cases, the particles are attracted and adhered again, and the removal of dust is incomplete.

  If the removal of the dust on the surface of the vehicle body is incomplete, there is a problem that the surface of the vehicle body is likely to be damaged by the dust remaining due to the operator's contact.

  In order to solve the above-mentioned problem, a dust removing device is provided that includes a static eliminator that removes static electricity charged in a manufactured product intended for dust removal, and an air blowing device.

  In addition, a dust removing device is provided that includes a static eliminator that removes static electricity charged on a manufactured product targeted for dust removal, an air blow device, and a dust collection device.

  Further, the static electricity removing air blow device having an ion generator and air blow nozzle as a static eliminating device, a dust collecting device, a control panel, a detection sensor capable of detecting a manufactured product targeted for dust removal, a power source, And a dust removing device having an air source.

  According to the present invention, dust adhering to the surface of a metal product such as an automobile body being manufactured in an automobile manufacturing factory or the like is discharged from the surface of the vehicle body by a static eliminator such as an ion generator. Therefore, the dust blown off by the air blowing device can be prevented from reattaching, and the dust can be almost completely removed from the surface of the vehicle body.

  After removing the dust from the surface of the vehicle body, the surface of the vehicle body is covered with a cover or the like, thereby preventing the occurrence of scratches due to the contact between the surface of the vehicle body and the dust.

  Further, in the inventions according to claims 2 and 3, by collecting the dust removed from the surface of the vehicle body with the dust collecting device, the floating dust can be reduced and the probability of reattachment can be reduced.

  Next, one embodiment of the present invention will be described with reference to FIG. 1 which is a front explanatory view of an automobile production line provided with the dust removing device of the present invention, and FIG. 2 which is also a plane explanatory view.

  A dust removing device according to an embodiment of the present invention includes a static electricity removing air blow device 1, a control panel 2, a vehicle body detecting sensor 3 capable of detecting a manufactured product (such as an automobile body) targeted for dust removal, and a power source. 4, an air source 5, a caster 6, and a dust collecting device 7.

  As shown in FIG. 1, a metal product conveyed on a line in an automobile manufacturing factory or the like, in this embodiment, an air blower 1 for removing static electricity, a control panel 2, and a vehicle body detection on both sides of a vehicle body B, respectively. A dust removing device including a possible vehicle body detection sensor 3, a power source 4, an air source 5, and a caster 6 is provided. The dust removing device is placed on a table on which casters 6 are attached and is movable.

  The static electricity removing air blow device 1 includes a cylindrical ion generation device 10 that is a static elimination device, and an air blow nozzle 11 that opens as an air passage in the ion generation device 10. The ion generation device 10 is connected to a power source 4. The air blow nozzle 11 communicates with the air source 5. The ion generator 10 is a corona discharge type and includes a needle-like portion called a discharge needle. The air blow nozzle 11 is directed obliquely from the front to the rear of the vehicle body B conveyed from both sides of the line, and blows dust to the rear of the vehicle body B.

  In this embodiment, the static electricity removing air blow device 1 is provided with three (1a, 1b, 1c) that are slightly different in direction and spaced from each other in the vertical direction. The distance between the tip of the air blow nozzle 11 of the static electricity removing air blow device 1 and the vehicle body B is about 600 mm for the highest position, about 200 mm for the middle 1b, and about 1 c for the lowest position. 100 mm.

  When the vehicle body B is conveyed along the line and detected by the vehicle body detection sensor 3, the air source 5 is activated by the control panel 2, and air is supplied from the air blow nozzle 11 of the static electricity removing air blow device 1. At the same time, the corona discharge is generated by the tip of the discharge needle of the ion generator 10, and oxygen molecules and hydrogen molecules in the air near the discharge needle change into positive and negative ions. To do. Usually, the static electricity has a positive or negative polarity. However, when the generated ions are irradiated onto the surface of the vehicle body, which is a charged object, the static electricity on the surface of the vehicle body, which is a charged object, is removed by the principle of neutralization. Since positive and negative ions are alternately emitted from the ion generator 10, ions are attracted to a charged body like a magnet and neutralized regardless of whether the static charge on the vehicle body is positive or negative. The principle eliminates static electricity from the car body.

  Before the operation of the static eliminator 10 of the static electricity removing air blow device 1, the electrostatic capacity of the vehicle body surface is 100V to 150V. When the static electricity removing air blow device 1 is activated, the electrostatic capacity of the vehicle body surface decreases to 0V to 10V. To do.

  Usually, when the static electricity on the surface of the vehicle body is 50 V or less, dust hardly adheres. Accordingly, the electrostatic capacity on the surface of the vehicle body decreases to 0V to 10V after the action of the static electricity removing air blow device 1, so that dust is easily removed from the surface of the vehicle body B.

  The dust collecting device 7 is located near the entrance of the process, that is, when the vehicle body B is conveyed and air is blown to the vehicle body B from the air blow nozzle 11 of the static electricity removing air blow device 1, Is provided. In this embodiment, the dust collecting device 7 is composed of a shallow water-filled tank provided with a scissors on the surface, and dust floating in the air falls and adheres to the water surface for recovery. The water-filled tank as the dust collecting device 7 collects and removes dust by changing water after a lapse of time.

  After removing dust from the surface of the vehicle body B by the dust removing device of the present invention, a cover for protecting the vehicle body surface may be immediately applied.

  In this embodiment, air blow devices 8 having no static eliminating action are provided on the left and right sides upstream of the position of the static electricity removing air blow device 1 of the present invention in the process line along which the vehicle body B is conveyed. The air blow device 8 has three stages of air blow nozzles on the left and right sides. After the main dust is blown off from the surface of the vehicle body B by the air blow device 8 in advance, the static electricity removing air blow device 1 of the present invention prevents the reattachment of the dust to the vehicle body B by the charge removal and air blow of the vehicle body B. The dust is reliably removed.

  The present invention has high applicability in a manufacturing factory for manufactured products, particularly in a manufacturing factory for automobiles.

Front explanatory view of an automobile production line provided with a dust removing device according to one embodiment of the present invention Plane explanatory drawing of the automobile manufacturing line which provided the dust removal apparatus which is one Embodiment of this invention

Explanation of symbols

1. Air blow device for static electricity removal
10 Static eliminator (ion generator)
DESCRIPTION OF SYMBOLS 11 Air blow nozzle 2 Control panel 3 Body detection sensor 4 Power supply 5 Air source 6 Caster 7 Dust collection device (water filling tank)
8 Air blow device B Auto body

Claims (3)

  A dust removing device comprising: a static eliminator for removing static electricity charged in a manufactured product targeted for dust removal, and an air blow device.   A dust removing device comprising: a static eliminator that removes static electricity charged in a manufactured product targeted for dust removal, an air blow device, and a dust collecting device. Static electricity removing air blow device having an ion generator and air blow nozzle, a dust collecting device, a control panel, a detection sensor capable of detecting a manufactured product targeted for dust removal, a power source, and an air And a dust removing device.

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