JPH11244690A - U.v. ray irradiation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate maintenance and reforming, and to easily make an irradiation device compact. SOLUTION: This irradiation device is provided with a U.V. lamp 3 and freely oscillatable reflecting plate supporting bodies 13, 15 to be used as a shutter mechanism in a lamp body 1. In this case, the lamp body 1 is formed with an Al-made extrusion molding and the U.V. lamp 3, and the reflecting plate supporting bodies 13, 15 are supported with a pair of holders 5, 7 and also an oscillation motor 29 is connected to the reflecting plate supporting bodies 13, 15 to form an irradiation unit 49. The irradiation unit 49 is freely detachably housed in the lamp body 1 from an irradiation opening part 53.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultraviolet irradiation device for drying an ultraviolet-curable paint.

[0002]

2. Description of the Related Art Generally, an ultraviolet-curable paint or an ultraviolet-curable ink is applied to the surface of paper or plastic, and the ultraviolet-curable paint or the ultraviolet-curable ink is cured by an ultraviolet irradiation lamp. As this type of irradiation device, there is known an ultraviolet irradiation device provided with an ultraviolet lamp and a swingable reflector supporting member also serving as a shutter mechanism in a lamp body. This ultraviolet irradiation device has been miniaturized in recent years, and therefore, there is a tendency that improvement in maintenance is desired. Conventionally, a pair of holders are fixed in an iron box-shaped lamp body, an ultraviolet lamp and a reflector support are hung between the holders, and the reflector support is connected to a motor to swing. ing.

[0003]

However, in the conventional configuration, for example, when performing maintenance on the reflector support, a plurality of screws are removed to remove all of the pair of holders, the ultraviolet lamp, and the reflector support. Later, maintenance of the reflector support was performed, and after performing this,
There is a problem that maintenance work is very poor, for example, it is necessary to fix these again with a plurality of screws. In particular, there is a problem that as the size of the ultraviolet irradiation device is reduced, the maintainability is deteriorated. In addition, in the conventional configuration, when the device needs to be remodeled, such as accommodating ultraviolet lamps of different sizes in an iron lamp body, work such as shifting the mounting position of the pair of holders is required, and the remodeling is required. There is a problem that it becomes very difficult. Further, the conventional configuration has a problem that it is difficult to reduce the size of the ultraviolet irradiation device.

Accordingly, an object of the present invention is to provide an ultraviolet irradiation apparatus which solves the above-mentioned problems of the conventional technique, is easy to maintain, easily remodels, and can easily make the irradiation apparatus compact. It is in.

[0005]

According to the first aspect of the present invention,
In an ultraviolet irradiation apparatus including an ultraviolet lamp and a swingable reflector supporting member also serving as a shutter mechanism in a lamp body, the lamp body is formed of an extruded aluminum material, and the ultraviolet lamp and the reflector supporting member are combined. An illumination unit is formed by connecting a swinging motor to the reflector support while being supported by a pair of holders, and the illumination unit is detachably housed in the lamp body through an illumination opening. Things.

According to the present invention, since the lamp body is formed of an extruded aluminum member, the structure is simplified, and the manufacture is easy and compact. Also, when performing maintenance on an ultraviolet lamp or a reflector support, etc.
Since the irradiation unit can be taken out of the irradiation opening to perform maintenance, maintenance performance can be improved.

According to a second aspect of the present invention, there is provided an ultraviolet irradiating apparatus including an ultraviolet lamp and a swingable reflector supporting member serving also as a shutter mechanism in a lamp body. It is characterized by being formed so that a ventilation plate which is formed of a mold material and is slid in the longitudinal direction of the lamp body to partition an air passage can be attached to an insertion opening integrally formed on the inner surfaces of both side walls of the lamp body. .

According to the present invention, when performing maintenance on the ventilation plate, the ventilation plate can be slid in the longitudinal direction of the lamp body and taken out of the lamp body to perform the maintenance, thereby improving the maintainability. Can be.

According to a third aspect of the present invention, in the second aspect, the wiring body is formed integrally with the lamp body so as to face the ventilation path.

According to the present invention, since the wiring holder is formed integrally with the lamp body, there is no need to separately provide a wiring holder, and the manufacture is easy and the size is reduced.

According to a fourth aspect of the present invention, in the first to third aspects, a stopper for opening the reflector supporting member is integrally formed in the lamp body.

According to the present invention, since the stopper for opening the reflector support is integrally formed with the lamp body, it is not necessary to separately provide a stopper for opening the reflector support, which facilitates manufacture and Compactness is achieved.

According to a fifth aspect of the present invention, there is provided an ultraviolet irradiation apparatus including an ultraviolet lamp and a swingable reflector supporting member serving also as a shutter mechanism in a lamp body, wherein the lamp body is formed of an extruded aluminum material. The ultraviolet lamp and the reflector support are supported by a pair of holders, and an oscillating motor is connected to the reflector support to form an irradiation unit, and the irradiation unit is detachable from the irradiation opening. The lighting unit is provided with a pair of holders of the irradiation unit fixed to the lamp body with stoppers, the lamp body is provided with a ventilation plate for partitioning a ventilation path, and the ventilation plate is slid in the longitudinal direction of the lamp body to form the lamp. It is formed so that it can be attached to the insertion port of the body, and the front and rear ends of the ventilation plate attached to the insertion port of the lamp body can be held by the pair of holders.

According to the present invention, since the lamp body is formed of the extruded aluminum member, the structure is simplified, and the manufacture is easy and compact.

Further, when maintenance is to be performed on the ultraviolet lamp or the reflector support, the irradiation unit can be taken out of the irradiation opening to perform maintenance. When the ventilation plate is to be maintained, the ventilation plate can be maintained. Can be slid out in the longitudinal direction of the lamp body and taken out of the lamp body to perform maintenance, so that the maintainability can be improved.

[0016]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a lamp body obtained by subjecting an extruded material made of an aluminum alloy to alumite treatment. An ultraviolet lamp 3 is accommodated in the lamp body 1. The ultraviolet lamp 3 extends long in the lamp body 1 (not shown), and the ends 3a and 3b are supported by holders 5 and 7, respectively. ing. A lead wire extending from one end 3a of the ultraviolet lamp 3 is connected to a lamp wire relay insulator 9, and a lead wire extending from the other end 3b is connected to a lamp wire relay insulator 11. In this embodiment, since the lamp body 1 itself is made of an aluminum alloy extruded member having a substantially U-shaped cross section, the structure is simplified, the manufacturing is facilitated, and the size is reduced as compared with the conventional one. Achieved.

2 and 3 around the ultraviolet lamp 3.
As shown in FIG. 5, a pair of swingable reflector support members 13 and 15 made of an aluminum alloy mold are arranged. The reflector supports 13 and 15 also serve as a shutter mechanism capable of blocking the ultraviolet light of the ultraviolet lamp 3 when the ultraviolet lamp 3 is closed. When the shutters are closed, the reflector supports 13 and 15 are positioned in front of the ultraviolet lamp 3 as shown in FIG. Rocked up to A gap 16 is formed between the distal end portions of the reflection plate supports 13 and 15 so that the direct light of the ultraviolet lamp 3 does not leak. The cooling air of the ultraviolet lamp 3 can be taken in.

As shown in FIG. 2, the reflector supports 13, 1
When the opening 5 is opened, the reflection plate supports 13 and 15 come into contact with the stopper 18 formed integrally with the lamp 1.

Conventionally, it was necessary to separately provide a stopper. However, according to this embodiment, since the lamp body 1 is made of an extruded material made of an aluminum alloy, the lamp body 1 is provided with the stopper 1.
By integrally molding 8, it is not necessary to separately provide an extra stopper, so that manufacture is facilitated and downsizing is achieved.

A dichroic mirror 17 is formed on each of the reflecting surfaces of the pair of reflecting plate supports 13 and 15. This dichroic mirror 17 is used for the reflecting plate support 1.
The mirror 17 is manufactured by evaporating a metal dichroic on metal surfaces 3 and 15, and this mirror 17 reflects ultraviolet rays and absorbs a large amount of heat.

As shown in FIG. 4, a first rotating shaft 21 and a second rotating shaft 23 are fixed to each end of the reflecting plate supports 13 and 15, and the first rotating shaft 21 and the second rotating shaft 23 are fixed. Reference numeral 23 is rotatably supported by the holders 5 and 7. As shown in FIG. 1, the second rotating shaft 23 extends beyond the ramp wire relay insulator 11, and a gear 25 is fixed to an end of the second rotating shaft 23. This gear 25 has a gear 27
The gear 27 is fixed to an output shaft 29a of a rotary cylinder 29 that operates by air pressure. According to this, when the rotary cylinder 29 rotates, the gear 2
The respective reflector supporters 13 and 15 swing through the reference numerals 5 and 27.

In this embodiment, as shown in FIG.
The ultraviolet lamp 3 and the reflector supports 13 and 15 are supported between the pair of holders 5 and 7, and the reflector supports 13 and 15 are supported.
The irradiation unit 49 is formed by connecting the rotary cylinder 15 and the rotary cylinder 29 via gears 25 and 27. As shown in FIG. 5D, the pair of holders 5 and 7 have a lamp end receiving hole 55 of the ultraviolet lamp 3 and a pair of first rotating shafts 21.
(Or a pair of second rotating shafts 23) are formed with receiving holes 57. The lamp end accommodated in the lamp end accommodating hole 55 is held by an inverted T-shaped holder 59.

The irradiation unit 49 is detachably housed in the lamp body 1 shown in FIG. 5B through the irradiation opening 53 shown in FIG. 5A.

As shown in FIG. 5B, a side plate 61 is provided at a position facing the pair of holders 5 and 7 in the lamp body 1.
After the holders 5 and 7 are inserted so as to be inserted between the side plates 61, and thereby the irradiation unit 51 is accommodated in the lamp body 1 as shown in FIG.
As shown in FIG. 6B, the lamp body 1 and the side plate 61 are provided from outside the lamp body 1.
Are fixed to the lamp body 1 by bolts 63 extending therethrough.

After that, the lower cover 67 is inserted through the insertion port 65 formed integrally with the lamp body 1 so as to cover the openings other than the irradiation opening 53, and furthermore, both ends of the lamp body 1 are connected to each other as shown in FIG. The end plate 69 is fixed as shown in FIG.

In this embodiment, since the irradiation unit 49 can be detached and attached for each unit, when performing maintenance on the ultraviolet lamp 3 or the reflection plate supports 13, 15, etc., the irradiation unit 49 is taken out from the irradiation opening 53 to perform maintenance. Since it can be implemented, maintainability can be improved.

As shown in FIG. 4, two hollow portions 30 are formed integrally with each of the pair of reflector support members 13 and 15 so as to penetrate in the longitudinal direction. The inner peripheral walls of these hollow portions 30 are anodized. Reflector support 1
On the first rotating shaft 21 side of the third and the 15th, the openings of the hollow portions 30 are closed by plugs 31, and the hollow portions 30 communicate with each other through through holes 33. Is closed. Second rotating shaft 23 of reflector support 13, 15
On the side, nipples 37 and 39 are inserted into openings of the hollow portions 30 via O-rings 35, and hoses (not shown) connected to a cooling fluid supply source are connected to the nipples 37 and 39.

According to this, the cooling fluid supplied through the nipple 37 passes through one of the hollow portions 30 and passes through the through hole 3.
3 and thereafter reach the nipple 39 through the other hollow portion 30, during which the reflector supports 13, 15 are cooled. In this embodiment, since the nipples 37 and 39 are combined on the second rotating shaft 23 side, the connection work of the cooling fluid hose is simplified, and maintenance is facilitated.

In this ultraviolet irradiation apparatus, when the irradiation of ultraviolet light becomes unnecessary during operation, the ultraviolet lamp 3 is not turned off, and the reflector supports 13 and 15 are connected to the ultraviolet lamps as shown in FIG. Swing to the front of 3. UV lamp 3
The reason why is not turned off is that once the light source is turned off, it takes several minutes for the ultraviolet output to stabilize, which may lead to production loss. Reflector supports 13, 15
Is pivoted forward of the ultraviolet lamp 3, a shutter mechanism is activated, and the ultraviolet lamp 3
Since the direct light does not leak out, ultraviolet light is almost completely blocked. In this case, cooling air is taken in from the overlapping gap 16 between the distal ends of the reflector support members 13 and 15, so that the ultraviolet lamp 3 is cooled.

During operation of the ultraviolet irradiation device, cooling water is constantly supplied from a cooling fluid supply source (not shown) to the hollow portions of the reflector support members 13 and 15 made of an aluminum alloy mold. By using the reflection plate supports 13 and 15, the contact area between the hollow portion and the reflection plate supports 13 and 15 is increased and the heat conductivity is excellent as compared with the conventional one, so that the cooling effect is improved. Can be greatly enhanced.

In this ultraviolet irradiation device, as shown in FIG. 2, a ventilation plate 43 for partitioning the ventilation passage 41 is provided in the lamp body 1. As shown in FIGS. 7A to 7C, the ventilation plate 43 is provided with an insertion port 7 integrally formed on the inner side wall of the lamp body 1.
1 is inserted so as to slide in the longitudinal direction of the lamp body 1. In this case, at least one end plate 69 of the lamp body 1
(FIG. 6a) has been removed. After the ventilation plate 43 is inserted in the longitudinal direction of the lamp body 1, the front and rear ends of the ventilation plate 43 are held by the above-described side plate 61, and the side plate 6.
The holders 5 and 7 are fixed by bolts 63 between them.

When maintaining the ventilation plate 43,
After removing the bolt 63 and taking out the irradiation unit 49 to the outside, and further removing the end plate 69, the ventilation plate 43 can be slid in the longitudinal direction of the lamp body 1 and taken out to perform maintenance. The maintainability can be improved.

In this embodiment, the modification of the ultraviolet irradiation device such as accommodating the ultraviolet lamps 3 having different sizes in the lamp body 1 can be easily carried out.

First, as shown in FIG.
9 is taken out, and after removing the end plate 69, the ventilation plate 43 is slid in the longitudinal direction of the lamp body 1 and taken out. Then, the irradiation unit 49 is disassembled and replaced with, for example, a long ultraviolet lamp 3, and the long ultraviolet lamp 3 is supported between the holders 5 and 7.
As a result, the distance between the holders 5 and 7 becomes longer. Next, the irradiation unit 49 after the lamp replacement is accommodated in the lamp body 1.
In this case, the distance between the holders 5 and 7 becomes longer,
Although the interval between the bolts 63 in the longitudinal direction of the lamp body 1 is increased, a new hole for the bolt 63 may be formed in the side wall of the lamp body 1. After the irradiation unit 49 after the lamp replacement is housed in the lamp body 1, the ventilation plate 43 and a new ventilation plate for which the length of the ventilation plate 43 is insufficient are inserted through the insertion port 71,
The irradiation unit 49 is accommodated, and the holders 5, 7 of the irradiation unit 49 are held so as to press the front and rear ends of the ventilation plate 43.
Is fixed, and the end plate 69 is fixed to complete the replacement operation.

As shown in FIGS. 7A and 7B, a wiring holder 81 is formed integrally with the lamp body 1 so as to face a ventilation path 41 partitioned by a ventilation plate 43.

Conventionally, it was necessary to separately provide a wiring holder. However, in this embodiment, since the lamp body 1 is made of an extruded material made of an aluminum alloy, the wiring holder 8 is attached to the lamp body 1.
By integrally molding 1, it is not necessary to separately provide an extra wiring holder, which facilitates manufacturing and achieves compactness.

Aluminum blocks 45 and 47 extending in the longitudinal direction of the lamp 1 are attached to the ventilation plate 43 and the inner wall of the lamp 1 on the side of the ventilation passage 41. Hollow portions 45a and 47a are formed.

In each of the blocks 45 and 47, although not shown, one end of each of the hollow portions 45a and 47a is connected through a through hole (FIG. 4) like the hollow portions of the reflection plate supports 13 and 15. The entrances and exits of 45a and 47a are arranged at the other end side, and a cooling fluid supply source (not shown) is connected to the entrances and exits.

The aluminum block 45 constitutes a ventilation plate cooling means, and the aluminum block 47 constitutes a lamp body cooling means.

In this embodiment, since the lamp body 1 is cooled through the aluminum block 47 (light body cooling means), the temperature rise on the outer surface of the lamp body 1 is greatly suppressed.
Therefore, the occurrence of burns and the like due to the contact with the lamp 1 is prevented, and the lamp 1 does not require any extra measures such as heat insulation.

When the lamp 1 is provided with a ventilation plate 43 for partitioning the ventilation passage 41, the ventilation plate 43 is cooled through an aluminum block 45 (ventilation plate cooling means). There is no heat in the road 41. Therefore, even if an electric motor or the like other than the pneumatically operated rotary cylinder 29 is used as the motor for swinging the reflector supports 13 and 15, the motor winding can be protected.

In this ultraviolet irradiation device, as shown in FIG. 1, an exhaust pipe 51 is provided at one end of the lamp body 1. The exhaust pipe 51 is provided with a ventilation passage 41 partitioned by a ventilation plate 43.
(FIG. 2). As shown in FIG. 8, the ventilation plate 43 is provided with a plurality of exhaust holes 53 whose area increases as the distance from the exhaust tube 51 increases.

According to this embodiment, the plurality of exhaust holes 53 whose area increases as the distance from the exhaust tube 51 provided in the lamp body 1 increases, is provided in the ventilation plate 43, so that air is sucked in each exhaust hole 53. The flow rates are almost equal.

Therefore, air is almost uniformly sucked through the exhaust holes 53 and exhausted through the exhaust pipe 51.
This also prevents the stagnation of air in the lamp body 1 and prevents the heat from being trapped in the ventilation passage 41 of the lamp body 1.

In this embodiment, since the lamp body 1 is made of an extruded die made of an aluminum alloy, the stoppers 18 of the reflection plate supports 13, 15 and the wiring holder 81, etc., which have conventionally been separate parts, can be very easily integrally formed. be able to. Therefore, downsizing of the device, simplification of the structure, simplification of manufacturing, and the like are easily achieved.

Although the present invention has been described based on one embodiment, it is apparent that the present invention is not limited to this.

[0048]

According to the first aspect of the present invention, since the lamp body is formed of the extruded aluminum member, the structure is simplified, the production is easy, and the compactness is achieved. In addition, when performing maintenance on the ultraviolet lamp, the reflector support, or the like, the irradiation unit can be taken out of the irradiation opening to perform the maintenance, so that the maintainability can be improved.

According to the second aspect of the present invention, when the maintenance of the ventilation plate is performed, the ventilation plate can be slid in the longitudinal direction of the lamp body and taken out to perform the maintenance. Can be improved.

According to the third aspect of the present invention, since the wiring holder is formed integrally with the lamp body, there is no need to separately provide a wiring holder, and the manufacturing is easy and the size is reduced.

According to the fourth aspect of the present invention, since the stopper for opening the reflector support is integrally formed with the lamp body, it is not necessary to separately provide a stopper for opening the reflector support.
It is easy to manufacture and compact.

According to the fifth aspect of the present invention, since the lamp body is formed of an extruded aluminum member, the structure is simplified, the manufacture is easy, and the compactness is achieved.

When maintenance is to be performed on the ultraviolet lamp or the reflector support, etc., the irradiation unit can be taken out of the irradiation opening to perform maintenance, and when the ventilation plate is to be maintained, this ventilation plate can be maintained. Can be slid out in the longitudinal direction of the lamp body and taken out of the lamp body to perform maintenance, so that the maintainability can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of an ultraviolet irradiation device according to the present invention.

FIG. 2 is a cross-sectional view showing a state where a reflector support is opened.

FIG. 3 is a cross-sectional view showing a state in which a reflector support is closed.

4A is a front view of the reflector support, FIG. 4B is an end view, and FIG. 4C is an exploded front view.

5A is a sectional view of the lamp body, b is an end view of the lamp body, c is a front view of the irradiation unit, and d is an end view of the irradiation unit.

FIG. 6A is a sectional view of an ultraviolet irradiation device, and FIG. 6B is an end view.

7A is an end view showing a state where the irradiation unit is mounted on the lamp body, FIG. 7B is an end view of the lamp body, and FIG. 7C is an end view of the irradiation unit.

FIG. 8 is a view showing a ventilation plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lamp body 3 Ultraviolet lamp 5,7 Holder 13,15 Reflector support 18 Stopper 37,39 Nipple (entrance / exit) 41 Ventilation path 43 Ventilation plate 49 Irradiation unit 71 Insertion port 81 Wiring holder

Claims (5)

[Claims] 1. An ultraviolet irradiator having an ultraviolet lamp and a swingable reflector supporting member serving also as a shutter mechanism in a lamp body, wherein the lamp body is formed of an extruded aluminum material, and the ultraviolet lamp and the reflection member are formed. While supporting the plate support with a pair of holders, an oscillating motor was connected to the reflector support to form an irradiation unit, and the irradiation unit was detachably housed in the lamp body from the irradiation opening. An ultraviolet irradiation device, characterized in that: 2. An ultraviolet irradiation apparatus comprising an ultraviolet lamp and a swingable reflector supporting member also serving as a shutter mechanism in a lamp body, wherein the lamp body is formed of an aluminum extrusion die having a substantially U-shaped cross section. An ultraviolet irradiation device, characterized in that a ventilation plate which slides in the longitudinal direction of the lamp body to partition a ventilation path can be attached to an insertion opening formed integrally on inner surfaces of both side walls of the lamp body. 3. The ultraviolet irradiation device according to claim 2, wherein a wiring holder is formed integrally with the lamp body so as to face the ventilation path. 4. The ultraviolet irradiation apparatus according to claim 1, wherein a stopper for opening the reflector support is formed integrally with the lamp body. 5. An ultraviolet irradiation apparatus including an ultraviolet lamp and a swingable reflector supporting member serving also as a shutter mechanism in a lamp body, wherein the lamp body is formed of an extruded aluminum-made member, and wherein the ultraviolet lamp and the reflection member are provided. While supporting the plate support with a pair of holders, an oscillating motor is connected to the reflector support to form an irradiation unit, and the irradiation unit is detachably housed from the irradiation opening, and the irradiation unit is provided. A pair of holders are fixed to the lamp body with stoppers, and the lamp body is provided with a ventilation plate for partitioning a ventilation path, and the ventilation plate is slid in the longitudinal direction of the lamp body and attached to the insertion port of the lamp body. An ultraviolet irradiation device, wherein the front and rear ends of a ventilation plate attached to the insertion port of the lamp body are formed so as to be held by the pair of holders.