JP2011177625A - Ultraviolet irradiation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To safely and definitely achieve lamp replacement even though a lamp is not lit or in high temperature status just after it goes off even in a longer ultraviolet irradiation lamp. <P>SOLUTION: The ultraviolet irradiation apparatus includes a lamp unit section 11 principally composing an ultraviolet lamp 13 that irradiates with ultraviolet rays in a lamp house 10 and an irradiation section 12, with which the ultraviolet rays are radiated from the lamp unit section 11. The ultraviolet lamp 13 may be mounted on a carrier 26 that are taken in and out of the lamp unit section 11, a replacement lamp is conveyed inside the lamp unit section 11 using the carrier 26 in lamp replacement, and the ultraviolet lamp 13 is replaced at a predetermined position through a working port formed on a side of the lamp house 10. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  This invention incorporates a tubular lamp that radiates light including ultraviolet light, and irradiates ultraviolet light from a light exit port, such as ink drying for printing, fine exposure for semiconductors, adhesive curing for liquid crystals, etc. The present invention relates to an ultraviolet irradiation device used for applications.

  A conventional ultraviolet irradiation device has a built-in tubular lamp that emits light containing ultraviolet rays, and irradiates the irradiated object with ultraviolet rays from a light exit port. The replacement lamp is configured so that it can be pulled out from the light irradiator body along the longitudinal direction of the lamp and removed. (For example, Patent Document 1)

JP 2006-35436 A

  In the technique of Patent Document 1 described above, an excimer lamp or an ultrahigh pressure mercury lamp having a total length of about 1400 mm at most is used as a lamp that emits ultraviolet rays when used for adhesive curing related to liquid crystal.

  In recent years, an increase in size has been promoted in order to increase the number of liquid crystal panels that can be manufactured at one time. Along with this, the total length of the lamp tends to be about 1500 to 3000 mm. Therefore, simply pulling out and taking out along the longitudinal direction of the lamp for exchanging the lamp has a problem that the workability of exchanging is deteriorated due to damage or longness due to contact during the taking out of the lamp. In addition, the lamp immediately after the lamp is not turned on or immediately after the lamp is turned off has a high temperature, and there is a problem that workability is deteriorated when the lamp is replaced at a high temperature.

  An object of the present invention is to provide an ultraviolet irradiation device capable of safely and reliably performing lamp replacement in a high temperature state immediately after non-lighting or extinguishing even for a long lamp.

  In order to solve the above-described problems, an ultraviolet irradiation device according to the present invention includes a lamp unit portion in which an ultraviolet lamp that emits ultraviolet rays is disposed, and an irradiation portion that is irradiated with ultraviolet rays emitted from the lamp unit portion. In an ultraviolet irradiation device configured inside a lamp house, an ultraviolet lamp can be placed on a carrier that is taken in and out of the lamp unit, and the carrier is used when the ultraviolet lamp is replaced, and the lamp unit is exchanged in the lamp unit. The ultraviolet lamp is transported, and the ultraviolet lamp is exchanged to a position at the time of use through a work port formed on a side surface of the lamp house.

  According to the present invention, it is possible to improve the workability of replacing the lamp even when it is a long lamp, and to improve the workability of replacing the lamp at a high temperature immediately after the lamp is not turned on or turned off.

It is a sectional side view for demonstrating one Embodiment regarding the ultraviolet irradiation device of this invention. It is the I-I 'sectional view taken on the line of FIG. 1 is a partially cutaway perspective view showing an enlarged main part. It is the front view which extracted and expanded and showed the principal part of FIG. 1 is a partially cutaway side view showing an enlarged main part. FIG. 6 is a left side view of FIG. 5. It is a sectional side view equivalent to FIG. 1 for demonstrating the state to which the lamp | ramp was attached. It is a partially cutaway side view used about description of lamp replacement | exchange. It is a partially cutaway side view used about description of lamp replacement | exchange.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  1 to 6 are diagrams for explaining an embodiment of the ultraviolet irradiation apparatus according to the present invention. FIG. 1 is a side sectional view, FIG. 2 is a sectional view taken along line II ′ of FIG. 1, and FIG. 4 is a partially cutaway perspective view showing an enlarged view, FIG. 4 is a front view showing the main portion of FIG. 1 extracted and enlarged, and FIG. 5 is a partially cutaway side view showing the enlarged main portion of FIG. 6 is a left side view of FIG.

  First, in FIGS. 1 and 2, reference numeral 10 denotes a box-shaped lamp house that accommodates the entire system. The lamp house 10 irradiates the lamp unit 11 that holds the lamp and the irradiated object with ultraviolet rays. The irradiation part 12 is comprised.

  The lamp unit 11 includes hooks 141 and 142 for supporting, for example, ceramic bases 131 and 132 attached to sealing portions at both ends of an ultraviolet lamp 13 that emits ultraviolet rays such as an excimer lamp and an ultrahigh pressure mercury lamp. Is fixed to the top plate 15 or the frame 16. In order to prevent the caps 131 and 132 from being detached from the hooks 141 and 142 after the caps 131 and 132 are engaged with the hooks 141 and 142, a removal preventing member 144 is disposed.

  In the caps 131 and 132, the electrodes at both ends of the ultraviolet lamp are electrically connected to one end of an external lead wire for power supply (not shown), and the other end of the lead wire is taken out by the caps 131 and 132 and connected to the power source. Is done.

  The removal prevention member 144 is rotatable about the support shaft 143 in the direction of the arrow in the figure, and after the bases 131 and 132 are engaged with the hooks 141 and 142, the removal prevention member 144 is rotated clockwise. After that, it is fixed with screws 145. Thereby, the bases 131 and 132 can be prevented from coming off the hooks 141 and 142.

  Reference numerals 171 and 172 denote reflection plates which are supported by the top plate 15 or the frame 18 fixed to the frame 16 and reflect the ultraviolet light emitted from the ultraviolet lamp 13. The ultraviolet rays emitted from the ultraviolet lamp 13 and the ultraviolet rays reflected by the reflectors 171 and 172 are applied to the irradiation unit 12 through an irradiation port 19 formed between the lamp unit unit 11 and the irradiation unit 12.

  The irradiation port 19 is closed in a fashion of laminating an infrared cut filter 20, an ultraviolet cut filter 21, and quartz glass 22, and only the ultraviolet rays having a specific wavelength are irradiated into the irradiation unit 12.

  Reference numeral 23 denotes an air inlet that is attached to an opening opened in the top plate 15 of the lamp house 10 and takes outside air into the lamp unit 11. Reference numerals 24 and 25 denote exhaust ports which are attached to rough openings provided on the side surfaces of the lamp house 10 facing both ends in the longitudinal direction of the ultraviolet lamp 13 and take out the air in the lamp unit 11 to the outside. Outside air is taken into the lamp unit portion 11 from the air inlet 23 using a blower or the like, and the temperature in the lamp unit portion 11 is lowered, and the warm air is exhausted to the outside through the exhaust ports 24 and 25. Although not shown, the intake port 23 is connected to a means for taking in outside air such as a blower using a duct. Similarly, the exhaust ports 24 and 25 exhaust air to a predetermined position using a duct or the like.

  Reference numeral 26 denotes a lamp replacement carrier that can go in and out of the lamp unit 11. As shown in FIGS. 3 to 6, the carrier 26 is integrally formed with, for example, two ribs 262 orthogonal to the longitudinal direction on a rectangular frame 261 having substantially the same length as the ultraviolet lamp 13. Forming. Other portions of the carrier 26 except for the frame 261 and the ribs 262 are formed with openings 263 through which ultraviolet rays pass. The carrier 26 is provided with an opening / closing door (not shown) on the side surface of the lamp house 10 so that the inside and outside of the lamp unit 11 can enter and exit. This open / close door is opened when the lamp is replaced, and is usually fixed by a fixing means such as a screw.

  On the side surface in the longitudinal direction of the frame 261, sliders 264 and 265 for smoothly running the carrier 26 are formed. In addition, on the upper surfaces of the frame 261 and the rib 262, in order to temporarily hold the ultraviolet lamps 13, holding portions 266 having lamp receiving portions formed on the upper portions are attached to a plurality of locations on a straight line.

  For the sliders 264 and 265 of the carrier 26, for example, a part of the frame 16 formed on the side surface side in the lamp unit portion 11 is used as rails 271 and 272 that are received by the sliders 264 and 265, and guides 281 and 282 are formed on the upper portions thereof. The The slider 264 freely slides between the rail 271 and the guide 281, and the slider 265 freely slides between the rail 272 and the guide 282, so that the carrier 26 on which the ultraviolet lamp 13 is mounted can be attached to the lamp unit 11. The inside and outside can be taken in and out.

  By attaching pulleys to the sliders 264 and 265 and rolling them on the rails 271 and 272, the carrier 26 can be taken in and out more smoothly. Further, the carrier 26 can be smoothly run by reducing the friction by setting the cross section on the rails 271 and 272 side to a reverse V mountain structure and the sliders 264 and 265 side to a reverse V valley structure. .

  FIG. 7 is a side sectional view showing a state where the carrier 26 is accommodated in the lamp unit 11 and the ultraviolet lamp 13 is replaced. The carrier 26 remains in the lamp unit portion 11 after the lamp replacement. The carrier 26 is in a hollow state at the opening 263 with the rib 262 remaining. For this reason, the ultraviolet rays radiated from the ultraviolet lamp 13 can irradiate the irradiation unit 12 with ultraviolet rays having a desired wavelength through the openings 263, the infrared cut filter 20, the ultraviolet cut filter 21, and the quartz glass 22.

  Next, replacement of the ultraviolet lamp 13 will be described with reference to FIGS. 8 and 9 are partially cutaway side views in which the main part on the right side surface of FIG. 1 is enlarged and cut away.

  8 and 9, the exhaust ports 24 and 25 attached to both side surfaces of the lamp house 10 are attached to a door 82 that can be opened and closed by a hinge 81. The door 82 is fastened with screws 83 during use. Reference numeral 91 shown in FIG. 9 denotes a lamp replacement work port opened at a position slightly larger than the exhaust ports 24 and 25 at the positions of the exhaust ports 24 and 25.

  Here, the removal of the ultraviolet lamp 13 will be described with reference to FIG. First, the screw 83 holding the door 82 in FIG. 8 is removed, and the door 82 is opened by the action of the hinge 81. The screw 145 holding the drop prevention member 144 of FIG. 9 is removed, and the drop prevention member 144 is rotated in the direction of the arrow. Thus, the bases 131 and 132 can be detached from the hooks 141 and 142. The ultraviolet lamp 13 is placed on the holding part 266 of the carrier 26 together with the bases 131 and 132. The ultraviolet lamp 13 can be taken out by opening an open / close door (not shown) and pulling out the carrier 26 to the outside of the lamp house 10 through the open / close door.

  Next, a case where the lamp is continuously replaced after the above-described take-out operation will be described. First, the replacement ultraviolet lamp 13 with the caps 131 and 132 attached to the sealing part is placed on the holding part 266 of the carrier 26 from which the defective ultraviolet lamp 13 has been removed, and the carrier 26 is placed in the lamp unit part 11. Move. Next, the caps 131 and 132 are picked up from the work port 91 of the opened door 82, and the caps 131 and 132 are engaged with the hooks 141 and 142 in a state where the removal preventing member 144 is rotated counterclockwise. The stoppers 144 are fastened with screws 145 so that the bases 131 and 132 are not detached from the hooks 141 and 142. Finally, the door 82 is closed and screwed with a screw 83.

  In this embodiment, the lamp can be replaced by placing the lamp on the carrier and taking it in and out of the lamp house. Therefore, even when the total length of the ultraviolet lamp is as long as about 1500 to 3000 mm, It is possible to solve the problem that the workability of replacement is deteriorated due to breakage due to contact and the long time.

  In addition, even if the ultraviolet lamp immediately after the ultraviolet lamp is not turned on or immediately after it is turned off, it is only necessary to hold the base and place it on the carrier already placed below the ultraviolet lamp. In addition, it is possible to improve the workability of lamp replacement at high temperatures.

  Furthermore, the carrier when the lamp is used is arranged in the lamp house, and ultraviolet rays can be irradiated to the ultraviolet irradiation portion side through the carrier, which is convenient for handling the carrier when not in use.

  The present invention is not limited to the above-described embodiment. For example, it is convenient to use a flexible duct as the duct attached to the end of the exhaust port provided in the door for lamp replacement in order to open and close the door with the duct attached.

DESCRIPTION OF SYMBOLS 10 Lamp house 11 Lamp unit part 12 Irradiation part 13 Ultraviolet lamp 131,132 Base 141,142 Hook 144 Removal prevention material 145,83 Screw 16,18,261 Frame 171,172 Reflector 19 Irradiation port 23 Intake port 24,25 Exhaust Port 26 Carrier 262 Rib 263 Opening 264, 265 Slider 271, 272 Rail 281, 282 Guide 81 Hinge 82 Door 91 Work port

Claims (3)

In the ultraviolet irradiation apparatus in which the lamp unit part in which the ultraviolet lamp that radiates ultraviolet rays is arranged and the irradiation part to which the ultraviolet ray emitted from the lamp unit part is irradiated are configured inside the box-shaped lamp house,
An ultraviolet lamp can be placed on a carrier that is taken in and out of the lamp unit portion, and when the ultraviolet lamp is replaced, the carrier is used to carry the replacement ultraviolet lamp into the lamp unit portion, and on the side of the lamp house. An ultraviolet irradiation apparatus, wherein the ultraviolet lamp is exchanged to a position at the time of use through a formed work port.   The carrier is disposed between the lamp and the irradiation unit in the lamp unit unit, and the ultraviolet irradiation unit is irradiated with ultraviolet rays through an opening formed in the carrier at the time of ultraviolet irradiation. The ultraviolet irradiation device according to claim 1.   The ultraviolet irradiation apparatus according to claim 1, wherein an exhaust port for exhausting heat generated in the lamp unit portion is attached to the open / close door that closes the work port.

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