KR101831929B1 - Curing Device Using Infrared Ray LED - Google Patents

Abstract

The present invention relates to a transfer unit for transferring a product of a first type or a product of a second type onto which a material for painting, coating and adhesion is applied; And a transfer unit for transferring the material applied on the first type of product conveyed through the transfer unit to the second type of the product conveyed through the transfer unit, An infrared-LED illuminator including a plurality of infrared-LEDs selectively irradiating infrared rays for partial curing or a substrate on which the plurality of infrared-LEDs are arranged; A heat dissipating unit for dissipating heat generated by the infrared-LED irradiator; And a controller for controlling the transfer unit, the infrared-LED irradiator, and the heat dissipation unit; .
According to the present invention, it is possible to minimize the difference in curing speed depending on the thickness of a product by irradiating the product with infrared ray having a high transmittance using an infrared ray-LED, and the infrared ray- it is possible to select the material to be applied to the product in whole or in part and to cure it according to the form of the product.

Description

Curing Device Using Infrared-LED (Curing Device Using Infrared Ray LED)

The present invention relates to a curing apparatus using an infrared-LED.

Generally, a material (resin) applied to the surface of a product is hardened to coat, paint and adhere the surface of the product such as a mobile phone case, tablet, household appliance, label, wood, lens, And conventionally, a curing apparatus using an ultraviolet (UV) LED has been used.

Such a conventional UV-LED curing apparatus has a technique of curing a product by irradiating UV rays of 300 nm to 440 nm through a UV-LED module disposed on a conveying path of the product and providing a heat dissipating unit for dissipating heat generated from the UV- .

However, since the conventional UV-LED curing apparatus is poor in transmittance due to the characteristic of UV to be irradiated through the UV-LED, the curing speed varies depending on the difference in thickness of the product. When the product is colored, There was a problem of falling.

In addition, since the conventional UV-LED curing apparatus can be cured only when the surface of the product is flat, there is a problem that it is difficult to cure the product when the surface of the product has an angular portion or an uneven portion rather than a flat surface.

In the conventional UV-LED curing apparatus, since the wavelength of ultraviolet light irradiated to the product through UV-LED is controlled within the range of 300 nm to 440 nm and only the photopolymerization initiator which reacts with this wavelength range is used, the choice of the type of photopolymerization initiator The width was limited.

Published Japanese Patent Application No. 10-2015-0066898 (published on June 17, 2015)

The present invention has been made to solve the above problems, and it is an object of the present invention to irradiate an infrared ray having a high transmittance to a product using an infrared ray-LED, An object of the present invention is to provide a curing apparatus using an infrared ray-LED which can be cured selectively in whole or in part and efficiently dissipate heat generated from an infrared ray-LED.

According to an aspect of the present invention, there is provided a curing apparatus using an infrared ray-LED, comprising: a first type of product to which a material for painting, coating, unit; And an irradiation unit for irradiating infrared rays so as to select and cure the material applied to the product in accordance with the product of the first type or the product of the second type, which is provided on the transfer path of the transfer unit, An infrared-LED irradiator whose area is variable; A heat dissipating unit for dissipating heat generated during infrared irradiation from the infrared-LED irradiator; And a controller for controlling the transfer unit, the infrared-LED irradiator, and the heat dissipation unit; .

The heat dissipation unit may include a first heat dissipation unit and a second heat dissipation unit, wherein the first heat dissipation unit comprises: A lower base made of copper (Cu) or a metal material and disposed on an upper portion of the substrate,

A multi-layer laminated structure made of copper (Cu) or a metal material, which is disposed at an upper portion of the lower base at a predetermined interval and is connected to the heat pipes, which are made of aluminum (Al) And the second heat dissipating unit is disposed on both sides of the first heat dissipating unit with respect to the first heat dissipating unit and includes a blowing fan for blowing heat radiated from the heat dissipating fins to the outside.

The first type of product is a product having a flat surface and requiring hardening to the entire surface.

The product of the second type is a product that requires a hardening to the target area, including a target area including a flat surface, a curved surface, an angular part or an uneven part, or both.

The infrared-LED irradiator includes an infrared-LED and a substrate, wherein the infrared-LED is arranged in a lattice pattern at regular intervals in the substrate so as to cure the material applied to the product of the first type.

A grid-shaped lens is combined with the infrared-LED having a lattice shape.

And the surface-type lens covering all the IR-LEDs in the lattice form is combined with the IR-LED having a lattice shape.

Wherein the infrared-LED irradiator comprises an infrared-LED and a substrate, the substrate being multi-tiered to bar type so as to partially and selectively cure the entire or target region of the material applied to the second type of product, A plurality of infrared-LEDs are arranged in the multi-stage structure.

The infrared-LED irradiator having a multi-stage structure of a bar type is configured such that power is selectively supplied to the substrate having a multi-stage structure so that infrared light is irradiated onto a target area of the second type of product under the control of the controller .

The present invention has the following effects.

First, by irradiating the product with infrared ray having high transmittance using an infrared-LED, it is possible to minimize the difference in the curing speed depending on the thickness of the product.

Secondly, since the infrared-LED irradiator can be provided with a surface type or a bar type according to the size or shape of the product, it is possible to select the material applied to the product as a whole or partially according to the shape of the product, .

Third, since the second heat radiating part composed of the blowing fan is disposed on both sides with respect to the first heat radiating part, the heat generated from the first heat radiating part can be blown to the outside, and the lifetime of the IR- IR illuminator can be maintained.

Fourth, since the first heat-radiating portion and the second heat-radiating portion are disposed on the upper portion of the IR-IR illuminator in the main body and the main body is installed on the conveying path of the conveying unit, they can be easily installed in a narrow space, .

Fifth, since the controller is equipped with a dimming control program, the light quantity and the wavelength (780 nm to 1400 nm) of the infrared rays irradiated through the infrared-LED irradiator can be appropriately adjusted according to the characteristics of the product.

Sixth, when the product is used to cure the product together with the conventional UV-LED curing device, the cured product can be greatly improved because the material applied to the product can be cured using various wavelengths of infrared rays and ultraviolet rays.

1 is a perspective view illustrating a curing apparatus using an infrared ray-LED according to an embodiment of the present invention.
2 is a schematic cross-sectional view illustrating a curing apparatus using an infrared-LED according to an embodiment of the present invention.
3 is a plan view showing a curing apparatus using an infrared ray-LED according to an embodiment of the present invention.
4 is a plan view showing an arrangement structure of an infrared-LED according to an embodiment of the present invention.
5 is a schematic cross-sectional view showing an infrared-LED irradiator and a heat-dissipating unit according to an embodiment of the present invention.
6 is a view showing an arrangement structure of a heat dissipating unit according to an embodiment of the present invention.
FIG. 7 is a schematic view showing a surface-type infrared-LED irradiator according to an embodiment of the present invention.
Fig. 8 is a schematic diagram showing a bar type infrared-LED illuminator according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

In the drawings, the same reference numerals denote the same components throughout the specification. In the drawings, the lengths and the thicknesses of layers or regions may be exaggerated for convenience. In addition, when the first component is described as being on the second component, it is preferable that the first component is located on the upper side in direct contact with the second component, And the third component is located between the second components.

Here, the terms first, second, etc. are used for describing various components and are used for the purpose of distinguishing one component from another component. However, the first component and the second component may be arbitrarily named according to the convenience of the person skilled in the art without departing from the technical idea of the present invention.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. For example, an element represented in singular form includes a plurality of elements unless the context clearly dictates a singular number. Also, in the specification of the present invention, the terms such as " comprises "or" having ", and the like, designate the presence of stated features, integers, steps, operations, elements, But do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the related art and, unless expressly defined in the specification of the present invention, are intended to mean either an ideal or an overly formal meaning It is not interpreted.

FIG. 1 is a perspective view illustrating a curing apparatus using an infrared-LED according to an embodiment of the present invention, FIG. 2 is a schematic cross-sectional view illustrating a curing apparatus using an infrared-LED according to an embodiment of the present invention, FIG. 4 is a plan view showing an arrangement structure of an infrared-LED according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view illustrating an embodiment of the present invention And FIG. 6 is a view illustrating an arrangement structure of a heat-dissipating unit according to an embodiment of the present invention.

FIG. 7 is a schematic view showing an infrared-LED irradiator of a surface type according to an embodiment of the present invention, and FIG. 8 is a schematic view showing an infrared-LED irradiator of a bar type according to an embodiment of the present invention. to be.

1 to 8, a curing apparatus 100 using an infrared-LED according to an embodiment of the present invention will be described. The curing apparatus 100 using an infrared-LED includes a transfer unit 110, an infrared- An irradiation unit 120, a heat dissipation unit 130, and a controller 140. [

The transfer unit 110 is configured to transfer a product P on which a material (e.g., a monomer, an oligomer, and a photopolymerization initiator) for one of coating, coating and adhesion , And may be provided in the form of a conveyor to implement an automatic transfer process of the product P.

Here, the product P may be classified into a product of the first type and a product of the second type, depending on the form. The product of the first type is a product which requires a hardness to the entire surface while having a flat surface , And the second type of product is a product that requires a hardening to the target area, including a flat surface, a target area including any one of a curved surface, an angled part, and a concave / convex part or the like.

The infrared-LED irradiator 120 is provided on the conveying path of the conveying unit 110 to cure the entire material applied to the first type of product conveyed through the conveying unit 110, The irradiated area of infrared rays is variable so that the applied material can be selected in total or partially and cured.

To this end, it may be configured to include a substrate 122 on which an infrared-LED 121 and an infrared-LED 121 for irradiating infrared rays are arranged.

Specifically, the infrared-LED 121 irradiates the product P with infrared light to vigorously promote molecular motion (vibration) of the product P, thereby inducing friction between the molecules. Heat generated on the surface of the product (P) through the induced friction causes polymerization or crosslinking reaction to cure the material (P) applied to the product (P) for coating, coating and adhering.

Since the infrared rays irradiated to the product P through the IR-LED 121 of the present invention have a higher transmittance than ultraviolet rays (UV), the difference in the curing rate depending on the thickness of the product P can be minimized.

4, the infrared-LED 121 may be arranged in a grid pattern at regular intervals on the substrate 122 so that the infrared rays are uniformly irradiated onto the product P, .

Here, the lattice-type lens may be coupled to the lattice-shaped infrared-LED 121, and a surface-type lens may be combined to cover the infrared-LED 121.

The substrate 120 may be made of aluminum (Al), and may be formed of a material such as UCL (Under Current Lock), OCL (Over Current Lock), UVL (Under Voltage Lock) OVL (Over Voltage Lock) and OVP (Over Voltage Protection).

In addition, since the infrared-LED irradiator 120 can be modularized into a surface type or a bar type according to the present invention, the shape and size of the product P or the area The material to be applied to the product P can be efficiently cured.

More specifically, the surface-type infrared-LED illuminator 120 includes a plurality of infrared-LEDs 121 (not shown) on the substrate 122 to totally cure the material applied to the first type of product, May be arranged in a lattice pattern at regular intervals. Therefore, the surface type infrared-LED irradiator 120 is a suitable type when the material applied to the product of the first type has a relatively large cured area.

In addition, a plurality of IR-LEDs may be disposed on the substrate 122 having a multi-stage structure in the bar-type infrared-LED illuminator 120. That is, as shown in FIG. 8, the bar-type infrared-LED illuminator 120 may include a first substrate 122a and a second substrate 122b on which a plurality of infrared-LEDs 121 are disposed, respectively have.

This type of bar-type infrared-LED illuminator 120 is configured to control the infrared-LED 121 according to the control of the controller 140, which will be described below, in order to select and cure the material applied to the product of the second type, Power may be selectively applied to the first substrate 122a or the second substrate 122b so as to selectively irradiate infrared rays.

Furthermore, when the material applied to the product of the second type through the bar-type infrared-LED irradiator 120 has a relatively narrow curing area, a plurality of Power can be selectively supplied to the infrared-LED 121 corresponding to any one of the infrared-LEDs 121 or one or more infrared-LEDs 121 so that the infrared-LEDs 121 can selectively irradiate infrared rays.

As described above, the present invention can entirely cure the material applied to the product P by designing and manufacturing the IR-IR illuminator 120 in various types to suit the size, shape and hardened area of the product P Alternatively, the material applied to the product (P) can be partially selected and efficiently cured.

The heat dissipating unit 130 may dissipate heat generated by the infrared-LED irradiator 120, and may include a first heat dissipating unit 131 and a second heat dissipating unit 132.

Here, the first heat-radiating portion 131 is disposed on the upper surface of the substrate 122 to efficiently dissipate heat generated from the infrared-LED irradiator 120, and may be made of a metal material.

Specifically, the first heat dissipation unit 131 may include a lower base 131a, a heat pipe 131b, and a heat dissipation fin 131b. The lower base 131a is disposed on the upper surface of the substrate 122, and is preferably made of a copper (Cu) material.

The heat pipe 131b is installed on the lower base 131a and is preferably made of copper as in the case of the lower base 131a. (Al) material, and is configured to be coupled to the first electrode 122.

2 and 3, the second heat dissipation unit 132 is disposed on both sides of the first heat dissipation unit 131 with respect to the first heat dissipation unit 131 and controls the controller 140 And a plurality of blowing fans 132a that operate in accordance with the temperature of the heat-radiating fins 131b.

As described above, since the heat dissipation efficiency can be greatly improved through the heat dissipation unit 130, the lifetime of the infrared-LED irradiator 120 can be maintained.

In addition, the present invention may further include a main body 150, which is configured to receive and protect the infrared-LED irradiator 120 and the heat-dissipating unit 130. In other words, the infrared-LED illuminator 120 is installed in the main body 150, and the heat-dissipating unit 130 is installed in the main body 150 and disposed on the upper part of the infrared-LED illuminator 120.

The controller 140 controls the transfer unit 110, the infrared-LED irradiator 120 and the heat-dissipating unit 130. The controller 140 is configured to control the characteristics of the product P such as the size, A dimming control program for controlling the light quantity and wavelength of infrared rays irradiated through the infrared-LED irradiator 120 according to the characteristics of the material applied to the product P is installed.

That is, the infrared rays irradiated from the infrared-LED illuminator 120 can be adjusted to a wavelength in the range of 780 nm to 1400 nm by a dimming control program installed in the controller 140.

Hereinafter, the curing process of the product P according to the curing apparatus 100 using the IR-LED according to the embodiment of the present invention will be described in detail for painting, coating and adhering the product P.

First, a product P to which a material (monomer, oligomer, photopolymerization initiator, etc.) for coating, coating and adhesion of the product P is applied is placed on the leading end side of the transfer unit 110, 110 to the main body 150 side disposed on the conveying path.

As the ultraviolet rays (wavelengths in the range of 780 nm to 1400 nm) are irradiated from the infrared-LED irradiator 120 installed in the main body 150, the product P transferred to the main body 150 side through the transfer unit 110, Curing is applied to the material applied to the surface. At this time, depending on the type of the infrared-LED irradiator 120, the entirety of the material applied to the first type of product may be cured or the material applied to the second type of the product may be selected in whole or in part to be cured .

When the curing process for the product P is performed through the infrared-LED irradiator 120, the heat generated by the infrared-LED irradiator 120 is transmitted to the infrared-LED irradiator 120 The process of radiating heat through the heat dissipation unit 130 disposed at the upper part can be performed at the same time.

Thereafter, the product P which has passed through the IR-IR irradiator 120 and has been hardened with respect to the material is transferred to the rear end side of the transfer unit 110 through the transfer unit 110, thereby completing the hardening process, Coating, adhesion, and the like are performed.

In addition, if the product P is cured by using a conventional curing apparatus using an ultraviolet (UV) LED, the curing of the product applied to the product P is not completely performed. However, When the product (P) is cured by using the curing apparatus (100) using the infrared ray-LED of the present invention, various wavelengths of ultraviolet rays and infrared rays can be used and the curing rate of the product (P) .

100: Curing device using infrared-LED
110: transfer unit 120: infrared-LED irradiator
121: IR-LED 122: substrate
130: heat dissipating unit 131: first heat dissipating unit
131a: Lower base 131b: Heat pipe
131c: heat sink fin 132: second heat sink
132a: blower fan 140: controller
150: Body P: Product

Claims (9)

A target area including a curved surface, an angled part, or a concavo-convex part, or a target area including both of them, so as to apply a material for coating, coating, or adhesion, A transfer unit for transferring the second type of product; And an infrared-ray irradiation unit which is provided on a transfer path of the transfer unit and whose irradiation area of the infrared ray is varied in accordance with the second type of product transferred through the transfer unit so as to select, in whole or in part, LED irradiator; A heat dissipating unit for dissipating heat generated during infrared irradiation from the infrared-LED irradiator; And a controller for controlling the transfer unit, the infrared-LED irradiator, and the heat dissipation unit; And,
The heat dissipation unit may include first and second heat dissipation units,
The first heat dissipation unit may include a lower base made of copper or a metal material and disposed on an upper portion of the substrate, a heat pipe made of copper or a metal material and multi- And a heat radiating fin of a multi-layer laminated structure formed of aluminum (Al) or a metal material and connected to the heat pipes arranged in multi-stages, wherein the second heat radiating portion is disposed on both sides with respect to the first heat radiating portion And a blowing fan for blowing out the heat radiated from the radiating fin to the outside,
Wherein the infrared-LED irradiator comprises an infrared-LED and a substrate, the substrate being multi-tiered to bar type so as to partially and selectively cure the entire or target region of the material applied to the second type of product, A plurality of the infrared-LEDs are arranged in the multi-stage substrate,
Wherein a power source is selectively supplied to the substrate having a multi-stage structure as a bar type so that infrared light is irradiated onto a target area of the second type product under the control of the controller. delete delete delete delete delete delete delete delete

Images