KR102477050B1 - Hardening Instrument - Google Patents

Abstract

The present invention relates to a curing machine, particularly a curing chamber; A tray for mounting a curing object inserted into the curing chamber; Upper and lower LED modules installed on the upper and lower sides of the curing chamber to irradiate the upper and lower portions of the tray; Upper and lower air inlet ducts disposed above and below the LED module and connected to one side of the tray; an exhaust pipe connected to the other side of the curing chamber; It includes upper and lower exhaust guides located above and below the exhaust pipe, and relates to a curing machine capable of preventing leakage of ultraviolet rays while maintaining flow efficiency of air exhausted by the above configuration.

Description

Hardening Instrument {Hardening Instrument}

The present invention relates to a curing machine for post-curing an object produced by a 3D printer, and more particularly, to a curing machine in which an exhaust pipe can prevent leakage of ultraviolet rays while maintaining air flow efficiency.

3D printing technology, which is in the limelight as a next-generation precision processing technology, is a technology that produces three-dimensional objects by spraying materials in a melted state and stacking them in a set shape.

Among these 3D printing technologies, the result of a 3D printer using a photocurable resin requires an additional post-curing process to satisfy the final material properties.

In general, methods using heat (Fused Deposition Modeling: FDM), laser (Selective lasersintering: SLS), and UV light (Stereolithography Apparatus: SLA, Digital Light Processing: DLP) are commonly used as means for curing.

Among them, the curing machine shown in FIG. 12, which is a method using UV light, that is, ultraviolet light, is exposed to ultraviolet rays to complete a dental prosthesis (curing object) mainly made in a 3D printer to improve the strength of the dental prosthesis and attach it to the oral cavity. It is a post-processing device for 3D printers used to meet the material certification standards of the Ministry of Food and Drug Safety for the purpose of preventing harmful eluents from coming out. As such a curing machine, there is a technique such as Korean Patent Registration No. 10-1550305 (Patent Document 1).

In a conventional curing machine as shown in FIG. 12, an object to be cured is placed on a mainly transparent tray so that it is evenly exposed to ultraviolet rays. At this time, since the UV light source emitting high energy increases the temperature of the curing machine and shortens the lifetime of the light source, it is common to dissipate heat using a blower and a heat radiation unit. In addition, since the object to be cured is accompanied by heat generated by a photocuring mechanism during the curing process, a separate blower is required to manage the temperature of the curing room in order to prevent deformation due to temperature rise.

As a technology to which a cooling structure for simultaneously cooling the UV LED and the output is applied, Korean Patent Publication No. 10-2020-0054946 (Patent Document 2), Korean Patent Registration No. 10-1682883 (Patent Document 3), Japanese Patent Publication No. 2016-526495 (Patent Document 4), Korean Patent Publication No. 10-2019-0050733, (Patent Document 5), Korean Patent Registration No. 10-2016288 (Patent Document 6), Korean Registered Patent Publication No. 10-1549887 (Patent Document 7).

However, there is no technology for simultaneously curing the upper and lower parts of the output by arranging UV LEDs on the upper and lower parts of the output, which is inefficient. In addition, turbulence may be generated in the air flow inside the curing machine.

Korean Patent Registration No. 10-1550305 (2015.08.31) Korean Patent Publication No. 10-2020-0054946 (2020.05.20) Korean Patent Registration No. 10-1682883 (2016.11.30) Japanese Patent Publication No. 2016-526495 (2016.09.05) Korean Patent Publication No. 10-2019-0050733 (2019.05.13) Korean Registered Patent Publication No. 10-2016288 (2019.08.23) Korean Patent Registration No. 10-1549887 (2015.08.28)

The present invention has been made to solve the above problems, and an object of the present invention is to provide a curing machine with a smooth flow of exhaust air.

In addition, an object of the present invention is to provide a curing machine capable of preventing leakage of ultraviolet rays while controlling the flow of exhausted air.

The curing machine of the present invention for achieving the above object includes a curing chamber; A tray for mounting a curing object inserted into the curing chamber; Upper and lower LED modules installed on the upper and lower sides of the curing chamber to irradiate the upper and lower portions of the tray; Upper and lower air inlet ducts disposed above and below the LED module and connected to one side of the tray; an exhaust pipe connected to the other side of the curing chamber; and upper and lower exhaust guides positioned above and below the exhaust pipe.

In addition, the curing machine of the present invention, the upper and lower heat radiation chambers included in the upper and lower air inlet ducts and located on the upper and lower sides of the upper and lower LED modules; An upper and lower switching unit configured to connect the upper and lower air inlet ducts and upper and lower portions of the tray to communicate with each other, wherein the exhaust guide includes an upper exhaust guide positioned at an upper side of the exhaust pipe and a lower exhaust guide positioned at a lower side of the exhaust pipe. An exhaust guide is included, a space between the tray and the upper LED module is connected to the upper switching unit and is located on one side of the upper exhaust guide, and a space between the tray and the lower LED module is connected to the upper switching unit and the lower LED module. It is connected but located on one side of the lower exhaust guide.

In addition, the curing machine of the present invention, the upper exhaust guide includes a first plane on one side, a first rising surface connected to the other side of the first plane, and a first descending surface connected to the other side of the first rising surface, The lower exhaust guide includes a second rising surface on one side, a second lowering surface connected to the other side of the second rising surface, and a second plane connected to the other side of the second lowering surface, and includes the upper exhaust guide and the second exhaust air. Guides are spaced apart from each other to form an exhaust passage in the exhaust pipe.

In addition, in the curing machine of the present invention, the exhaust passage has a first reduction formed by spacing the first plane and the second rising surface, and a first increase formed by spacing the first plane and the second descending surface, It includes a second ramp formed by spaced apart from the first descending surface and the second plane, and a second ramp formed by spaced apart from the first rising surface and the second plane.

In addition, the curing machine of the present invention, a blowing fan connected to the upper and lower air inlet ducts; It further includes an exhaust fan positioned to be spaced apart from the other side of the exhaust pipe, wherein the exhaust fan includes a hub and wings connected to and surrounding the hub, and upper and lower sides of the hub are respectively the first descending surface. It is located on the other side of and the other side of the second plane.

The curing machine of the present invention has the following effects.

In the present invention, resistance of air exhausted by an exhaust guide installed in an exhaust pipe is minimized, thereby reducing exhaust efficiency loss, maintaining air flow efficiency, and preventing ultraviolet light sources from leaking out of the curing machine.

1 is a perspective view of a curing machine according to an embodiment of the present invention viewed from one side
Figure 2 is a perspective view as seen from the other side of the curing machine shown in Figure 1
Figure 3 is a perspective view of the main cover of the curing machine shown in Figure 1 separated
Figure 4 is a perspective view from the other side of the curing machine shown in Figure 3
Figure 5a is a cross-sectional view AA shown in Figure 4
Figure 5b is a view for explaining the air flow using the AA cross-sectional view shown in Figure 4
Figure 6 is an exploded perspective view of a state in which the euro box is separated from the curing chamber and the heat radiation unit
Figure 7 is an exploded perspective view of the configuration shown in Figure 6
Figure 8a is a perspective view of the first euro box
Figure 8b is a perspective view of the second euro box
Figure 9a is a view looking straight at the curing chamber from one side
Figure 9b is an exploded perspective view of the components shown in Figure 9a
10A is a diagram for explaining the flow of air through a supply unit and a heat dissipation unit;
10B is a perspective view of a first supply unit and a second supply unit;
11 is an exploded perspective view of the exhaust pipe
12 is a view for explaining a conventional curing machine

Among the configurations of the present invention to be described below, for the same configuration as the prior art, reference will be made to the prior art described above, and a separate detailed description will be omitted.

The terminology used herein is only for referring to specific embodiments and is not intended to limit the present invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of "comprising" specifies specific characteristics, regions, integers, steps, operations, elements, and/or components, and other specific characteristics, regions, integers, steps, operations, elements, elements, and/or groups. does not exclude the presence or addition of

It is understood that when an element is referred to as being "connected" or "in contact" with another element, it may be directly connected or in contact with the other element, but other elements may exist in the middle. It should be.

Hereinafter, an example of the present invention will be described based on FIGS. 1 to 11 .

An example curing device includes a body 10 constituting a frame of the curing device, a curing chamber 200 that is a space for curing an object to be cured (not shown), and a mounting portion 300 inserted into the curing chamber 200. Upper and lower air inlet ducts including a tray for mounting, an LED module for irradiating ultraviolet rays to an object to be cured, a heat radiating unit for dissipating heat generated from the LED module, and upper and lower radiating chambers in which the radiating unit is accommodated, and disposed above and below the curing chamber. , Upper and lower blowing fans connected to the upper and lower air inlet ducts, an upper and lower switching unit connecting the upper and lower air inlet ducts and the upper and lower portions of the tray in communication with each other, an exhaust pipe 900 connected to the other side of the curing chamber 200, and an exhaust pipe ( 900) may include an upper and lower exhaust guide positioned on the upper and lower sides to guide air flow and prevent leakage of ultraviolet rays, and an exhaust fan 40 positioned to be spaced apart from the other side of the exhaust pipe 900 by a predetermined interval. .

As shown in FIG. 12, the curing machine of the present invention having the above structure integrates the cooling channel of the heat radiation room and the cooling channel of the object to be cured into one using the conversion unit. Therefore, after the air blown by the blowing fan cools the heat radiation room, the object to be cured and the curing room 200 can be cooled. In addition, according to the present invention, resistance of air exhausted by the exhaust guide can be minimized to maintain flow efficiency, and leakage of the UV light source of the LED to the outside of the curing machine can be prevented.

----------- Body (10) -----------

As shown in FIG. 4, the main body 10 includes a main cover 11 integrally formed with an upper side plate, a left side board, and a right side board, the other side cover 13 coupled to the rear side of the main cover 11, and the main cover 11 And a lower cover 15 located on the lower side of the other cover 13, a partition wall 17 erected in the center of the lower cover 15 to divide the inside into two spaces, and a support extending from one side of the partition wall 17 to the left. (19) may be included.

The main cover 11, the other cover 13, the lower cover 15, the partition wall 17, and the support part 19 may all be formed in a plate shape. By the configuration of the main body 10, a left space 31 and a right space 33 may be formed inside the main body 10 as shown in FIGS. 3 and 4.

As illustrated in FIGS. 3 to 5 , through-holes (reference numerals not shown) may be formed on the upper and lower sides of the partition wall 17 , respectively. Accordingly, the left space 31 and the right space 33 are connected to each other so that air can move.

Components related to curing and cooling such as the curing chamber 200 and a blowing fan may be accommodated in the left space 31 .

A controller (reference numeral not shown) of the curing machine may be accommodated in the right space 33 . The control unit (reference numeral not shown) may include a power input, a power supply unit such as a switch or an inverter, a control PCB, and a control PCB.

Meanwhile, suction holes (not shown) in which suction fans are installed may be formed on the left and right sides of the main cover 11, respectively. Accordingly, the air sucked into the left space 31 through the left suction hole may flow into the blowing fan, and may flow into the left space 31 to cool components accommodated in the left space 31 . In addition, the right space 33 and the controller may be cooled by the air sucked into the right space 33 through the right suction hole.

External air sucked through the left suction fan shown in FIG. 4 may be introduced in the order of the suction hole, the left space 31, and the inlet of the blowing fan.

----------- Curing room (200) -----------

As shown in FIGS. 5A and 5B, the curing chamber 200 is a space in which an object to be cured can be accommodated and cured.

As shown in FIG. 9A , the curing chamber 200 may be formed by left and right assembling units, upper and lower perforated plates inserted into the assembling units in a sliding manner, and PCBs to be described later connected to the perforated plates. Therefore, one side and the other side of the curing chamber 200 are open so that air can be introduced and exhausted.

The assembly unit may include a perforated plate assembly unit 210 on the left side and a second assembly unit 220 on the right side facing each other.

A spacer 230 may be connected to one side and the other side of the perforated plate assembly unit 210 and the second assembly unit 220 . A distance between the perforated plate assembly unit 210 and the second assembly unit 220 may be maintained by the spacer 230 . The spacer 230 may be formed by a total of four spacers 230, one each on the upper and lower sides of one side and one each on the upper and lower sides of the other side.

As shown in FIG. 9A , the perforated plate assembly unit 210 and the second assembly unit 220 have a perforated plate groove into which a perforated plate to be described later is inserted, and a mounting groove into which a mounting unit 300 is slidably inserted and accommodated on surfaces facing each other. (221) may be formed.

Furthermore, one perforated plate groove may be formed on the upper and lower sides. The perforated plate groove may include an upper perforated plate groove 211 on the upper side and a lower perforated plate groove 212 on the lower side.

Together with the perforated board, the LED module may also be positioned between the perforated plate assembly unit 210 and the second assembly unit 220.

As shown in FIGS. 5A, 5B, and 9A, the installation groove 221 is formed between the upper perforated plate groove 211 and the lower perforated plate groove 212.

Meanwhile, as shown in FIGS. 5A and 9A , a temperature sensor 943 may be connected to the assembly unit forming the curing chamber 200 . To this end, a holder 945 supporting the temperature sensor 943 may be installed in the assembly unit.

As shown in FIG. 9A , the holder 945 may have a longer left and right length than its thickness. As shown in FIG. 9A , the left and right sides of the holder 945 may protrude upward. The protruding left and right sides may be supported by the perforated plate assembly unit 210 and the second assembly unit 220, respectively.

As shown in FIGS. 4, 6, 7, and 10a, the limit switch 941 may be located on one of the left sides of the perforated plate assembly unit 210. As shown in FIG. 4, when the tray is assembled to the support part 19 and the mounting part 300 is inserted into the curing chamber 200, the limit switch 941 and the contact piece 401 to be described later can come into contact. By being contacted, it is possible to detect whether one side of the curing chamber 200 is closed. In addition, the limit switch 941 plays a role of immediately turning off the LED because the tray is separated from the support 19 and one side of the curing chamber 200 is opened during the operation of the curing machine, so that ultraviolet rays can be exposed to the outside of the curing machine, so that the ultraviolet rays It can be prevented from being exposed to the outside. That is, when the limit switch 941 and the contact piece 401 are separated, the LED may be turned off.

A wire (not shown) may be connected to the limit switch 941 .

Meanwhile, the temperature sensor 943 may detect the internal temperature of the curing chamber 200 . Therefore, by preventing overheating, the lifetime of the LED can be protected. Also, the temperature sensor 943 may determine the control amount of the speed of the blowing fan.

Meanwhile, as shown in FIGS. 4 and 6, a hole (reference numeral not shown) through which a wire (not shown) connected to the temperature sensor 943 passes is formed at the other end of the first assembly unit 210 connected to each other. can

----------- LED module, perforated plate -----------

Meanwhile, as shown in FIGS. 5a, 5b, 9a, 9b, etc., the LED module may include a plurality of LEDs and a PCB on which the LEDs are installed. Therefore, the object to be cured can be evenly exposed to ultraviolet rays.

The LED module is installed on the upper and lower sides of the curing chamber so that the upper and lower portions of the tray can be irradiated.

The PCB may include an upper PCB 110 and a lower PCB 120 positioned above the curing chamber 200 and below the curing chamber 200 .

The LEDs may include a plurality of upper LEDs 111 installed on the upper PCB 110 and a plurality of lower LEDs 121 installed on the lower PCB 120 .

The upper LED 111 and the lower LED 121 may be respectively positioned on the upper and lower sides of the curing chamber 200 . That is, the upper LED 111 may be located on the upper side with respect to the holder 300 , and the lower LED 121 may be located on the lower side with respect to the holder 300 . Therefore, the upper and lower sides of the cured product can be cured simultaneously.

The upper LED 111 and the lower LED 121 may have the same configuration.

Meanwhile, an upper perforated plate 113 having through-holes (reference numerals not shown) in which a plurality of upper LEDs 111 are accommodated may be connected to the lower surface of the upper PCB 110 . In addition, a lower perforated plate 123 having through-holes (reference numerals not shown) in which the plurality of lower LEDs 121 are accommodated may be connected to the upper surface of the lower PCB 120 .

Specifically, the upper PCB 110 may be positioned below the upper perforated plate 113 and the lower PCB 120 may be positioned above the lower perforated plate 123 .

As shown in FIGS. 5A, 5B, and 9A, the upper and lower sides of the upper perforated plate 113 may be in contact with the upper heat dissipation part 821 and the upper PCB 110, which will be described later. Also, the upper and lower sides of the lower perforated plate 123 may be in contact with the lower heat dissipation part 823 and the lower PCB 120, which will be described later, respectively.

In the upper perforated plate 113 and the lower perforated plate 123, through-holes (reference numerals not shown) having the same arrangement as that of the LEDs may be formed to accommodate the LEDs.

----------- Air inlet duct -----------

The air inlet duct may include upper and lower supply units connected to the blowing fan and the heat dissipation chamber, and upper and lower heat dissipation chambers positioned between the supply unit and the switching unit and in which the upper and lower heat dissipation units may be accommodated.

Air inlet ducts may be disposed on upper and lower sides of the curing chamber. That is, the air inlet duct may include an upper air inlet duct and a lower air inlet duct.

As shown in FIGS. 5A and 5B , the heat dissipation chamber may be disposed in the air inlet duct.

======= Heat sink =======

The heat dissipation chamber is a space in which one side and the other side are open.

One side of the heat dissipation chamber may be connected to one side of the tray by the conversion unit.

As shown in FIGS. 5A, 5B, and 6, a heat sink serving as a heat dissipation unit may be accommodated in the heat dissipation room of the present example.

The heat dissipation unit may be located on the upper and lower sides of the upper and lower LED modules. Specifically, as shown in FIGS. 5A, 5B, and 6, the heat dissipation part includes an upper heat dissipation part 821 that can contact the upper side of the upper PCB 110 and a lower heat dissipation part that can contact the lower side of the lower PCB 120. A section 823 may be included.

The heat radiation chamber may include an upper heat radiation chamber 810 and a lower heat radiation chamber 820 respectively located above the upper PCB 110 and below the lower PCB 120 .

As shown in FIGS. 4 to 7 , the upper heat dissipation chamber 810 includes the first heat dissipation cover 801 covering the upper and left sides of the upper heat dissipation part 821 and the partition wall connected to the right side of the first heat dissipation cover 801 ( 17), it is a space formed surrounded by the upper PCB 110 facing the lower surface of the upper heat dissipation unit 821.

On the other hand, as shown in FIGS. 6 and 7 , the lower heat dissipation chamber 820 includes a bracket 805 on which the lower heat dissipation part 823 is mounted, the partition wall 17 connected to the right side of the bracket 805, and the bracket ( 805) and is formed by the second heat dissipation cover 803 covering the left side of the lower heat dissipation part 823 and the lower PCB 120 facing the upper surface of the lower heat dissipation part 823.

As shown in FIGS. 4, 5a and 5b, the bracket 805 has a shape protruding upward and can be supported by the lower cover 15.

As shown in FIG. 6 , the bracket 805 may cover the lower side of the lower heat dissipation unit 823 .

As shown in FIGS. 4 and 6 , the upper side of the second heat dissipation cover 803 may be connected to the left side of the first assembly unit 210 to be described later.

Meanwhile, upper conversion units 411, 511, and 521 to be described later may be positioned on one side of the upper heat dissipation chamber 810, and an upper blowing fan 610 may be positioned on the other side. The upper heat dissipation unit 821, the upper switching units 411, 511, and 521 to be described later, and the upper blowing fan 610 may be disposed parallel to each other in one direction. In addition, lower switching units 412 , 512 , and 522 to be described below may be positioned on one side of the lower heat dissipation chamber 820 . A lower blowing fan 620 may be positioned on the other side of the lower heat dissipation chamber 820 . Among the lower heat dissipation unit 823 and the lower conversion unit to be described later, the lower inlet 412 and the lower blowing fan 620 may be disposed parallel to each other in one direction. Therefore, when air flows inside the curing machine, resistance is minimized, and air flow can be smoothly performed.

======= Distributor =======

As illustrated in FIGS. 5A, 5B, 10A, and 10B, one side and the other side of the supply part may be respectively connected to the discharge part of the blowing fan and the other side of the radiation chamber.

The supply unit may be formed of a thin plate compared to its length.

Specifically, the supply unit may include an upper supply unit 710 and a lower supply unit 720 depending on the installation location.

As shown in FIGS. 5A, 5B, and 10A, the discharge port 603 of the blowing fan may be inserted into the other side of the supply unit. Therefore, when external air introduced into the blowing fans 610 and 620 passes through the supply units 710 and 720 and is supplied to the heat dissipation chambers 810 and 820, loss of air is prevented and air is smoothly supplied to the heat dissipation chambers 810 and 820 so that the heat dissipation chamber ( 810 and 820) and the heat dissipation units 821 and 823 can be smoothly cooled.

As shown in FIG. 10B , the upper supply unit 710 may include a top plate (reference numeral not shown), a left plate connected to the top plate (reference numeral not shown), and a right plate 711 . Accordingly, the upper supply unit 710 may be disposed such that one side, the other side, and the lower side are open.

Meanwhile, as illustrated in FIG. 10B , the lower supply unit 720 may include a left plate 721, a right plate (reference numerals not shown), and a lower plate (reference numerals not shown). Accordingly, the lower supply unit 720 may be disposed such that one side, the other side, and the upper side are open.

Meanwhile, a cross-sectional area of an inlet (reference numeral not shown), which is the other side of the heat radiation chamber, may be larger than a cross-sectional area of the outlet 603 of the blowing fan. Accordingly, the right side plate 711 of the upper supply unit 710 may be inclined to the right as it goes from the other side to one side. In addition, the left side plate 721 of the lower supply unit 720 is inclined to the left as it goes from the other side to one side. Accordingly, the left and right widths of the supply unit become wider from the blowing fan side to the heat radiation room side. As a result, the left and right widths of the supply unit become wider from the other side to one side. Accordingly, since the upper and lower supply units are located between the upper and lower blowing fans and the upper and lower heat radiation chambers, air can be evenly supplied to the heat radiation chambers.

As illustrated in FIGS. 5A, 5B, and 10B , a first flange 713 contacting a part of the upper heat dissipation unit 821 may be formed at one end of the upper plate of the upper supply unit 710 . In addition, a second flange 723 contacting a part of the lower heat dissipation unit 823 may be formed at one end of the lower plate of the lower supply unit 720 .

Meanwhile, a third flange is formed at the lower end of the right plate 711 of the upper supply unit 710 . As shown in FIG. 10B , a through hole (not shown) through which a fastening member (not shown) such as a bolt can pass is formed in the third flange. The upper supply unit 710 may be connected to the upper side of the exhaust side plate 910 by fastening a fastening member (not shown) to the third flange of the upper supply unit 710 .

In addition, a fourth flange and a fifth flange are formed on the left and right sides of the lower supply unit 720, respectively. As shown in FIG. 10B , through-holes (not shown) through which a fastening member (not shown) such as a bolt can pass are formed in the left flange and the right flange. The lower supply unit 720 may be connected to the lower side of the exhaust side plate 910 by fastening fastening members (not shown) to left and right flanges of the lower supply unit 720 .

----------- Blowing fan -----------

As shown in FIGS. 5A and 5B , the blowing fan may include an upper blowing fan 610 connected to the upper heat dissipating chamber 810 and a lower blowing fan 620 connected to the lower heat dissipating chamber 820. .

The upper blowing fan 610 and the lower blowing fan 620 may have the same configuration.

The upper blowing fan 610 may be supported on the upper side of the exhaust side plate 910 . In addition, the lower blowing fan 620 may be supported on the lower side of the exhaust side plate 910 .

The blowing fan may be a DC type centrifugal fan. Accordingly, an air inlet (not shown) of the upper blowing fan 610 may be located above the upper blowing fan 610 . An air inlet (reference numeral not shown) of the lower blowing fan 620 may be located below the lower blowing fan 620 .

Meanwhile, a discharge unit (not shown) of the blowing fan, that is, a discharge unit through which air is discharged may be located on one side of the blowing fan.

----------- Conversion part, Eurobox -----------

The conversion unit may be connected to one side of the curing chamber 200 and an upper heat radiation chamber 810 to a lower heat radiation chamber 820 .

Specifically, the switching unit includes the upper switching units 411, 511, and 521 connected to the space 200a between the holding unit 300 and the upper LED 111 on the lower side, and the upper switching unit 300 and the lower LED ( 121) may include lower conversion units 412, 512, and 522 connected to the space 200b between them. Therefore, the upper and lower sides of the cured material, the upper LED module, the lower LED module, the upper heat radiation chamber 810, and the lower heat radiation chamber 820 can be simultaneously cooled.

The upper inlet part 411 of the upper switching part 411 , 511 , and 521 may be connected to the upper heat radiation chamber 810 of the upper air inlet duct.

The upper switching units 411 , 511 , and 521 may be connected to an upper side of one open side of the curing chamber 200 .

Among the lower conversion units 412 , 512 , and 522 , the lower inlet 412 may be connected to the lower heat radiation chamber 820 of the lower air inlet duct.

The lower conversion units 412 , 512 , and 522 may be connected to a lower side of one open side of the curing chamber 200 .

Meanwhile, as shown in FIGS. 5A and 5B, the upper flow path box 400 has an upper wall, a lower wall, a left wall, a right wall, and one side wall (reference numerals not shown) so that the upper conversion units 411, 511, and 521 are formed. ) In addition, the lower euro box 500 may also include an upper wall, a lower wall, a left wall, a right wall, and one side wall (reference numerals not shown) so that the lower conversion units 412, 512, and 522 are formed. can

As shown in FIGS. 8A and 10A , a contact piece 401 to which the limit switch 941 can be contacted may be formed in the upper flow box 400 .

The contact piece 401 may be formed on the other surface of the left wall.

As shown in FIGS. 8A and 8B , an upper conversion wall 430 and a lower conversion wall 530 may be installed inside the upper passage box 400 and inside the lower passage box 500, respectively.

The upper conversion wall 430 and the lower conversion wall 530 may have semicircular cross sections in the vertical direction as shown in FIGS. 5A and 5B. Conversion passages 521 and 522 are formed by the conversion wall, so that the flow of air passing through the passage box can be converted 180 degrees. In addition, since the upper conversion wall 430 and the lower conversion wall 530 are curved, air can be supplied smoothly.

Meanwhile, the upper switching parts 411, 511, and 521 include an upper inlet part 411 connected to the upper blowing fan 610, an upper discharge part 511 connected to an upper part of one side of the curing chamber 200, and a top and bottom Each side may be composed of an upper conversion passage 521 connected to the upper inlet 411 and the upper outlet 511 . Upper and lower sides of the upper conversion path 521 may be connected to the upper inlet 411 and the upper discharge unit 511 , respectively.

The upper discharge part 511 may be located lower than the upper inlet part 411 .

As described above, the upper discharge part 511 may be connected to the space 200a between the holding part 300 and the upper LED 111 . Therefore, the air passing through the upper discharge part 511 can cure the inside of the curing chamber 200 and the upper part of the object to be cured.

Meanwhile, the lower switching parts 412, 512, and 522 include a lower inlet part 412 connected to the lower blowing fan 620, a lower discharge part 512 connected to the lower part of one side of the curing chamber 200, The side may include a lower conversion path 522 connected to the lower inlet part 412 and the lower discharge part 512 . The upper and lower sides of the lower conversion path 522 may be connected to the lower inlet 412 and the lower discharge unit 512, respectively. The lower discharge unit 512 may be located higher than the lower inlet unit 412. can

As described above, the lower discharge part 512 may be connected to the space 200b between the holding part 300 and the lower LED 121 . Therefore, the air passing through the lower discharge part 512 can cure the inside of the curing chamber 200 and the lower part of the object to be cured.

As shown in FIGS. 5B and 10A, the direction in which the air passing through the heat radiation chamber flows can be switched 180 degrees by the above-described upper switching units 411, 511, and 521 and lower switching units 412, 512, and 522. . That is, the flow of air in the heat radiation chamber and the flow in the curing chamber 200 may be opposite. At this time, it was confirmed through experiments that the temperature of the air slightly rises as it passes through the heat dissipation room, but it is supplied by the blowing fan and the air volume is high, so that the inside of the curing room 200 can be sufficiently cooled. Therefore, in the present invention, by designing the conversion unit in a 180-degree conversion type, the life of the LED can be protected and the performance can be maintained without separately cooling the curing chamber 200, and the quality of the curing object can be secured.

Meanwhile, as shown in FIGS. 5A and 5B , a connection wall 414 to which one side plate 314 to be described later of the mounting unit 300 is connected may be formed below the upper conversion wall 430 of the upper euro box 400. have. Accordingly, it is preferable that the upper and lower widths of the upper flow box 400 are larger than those of the lower flow path box 500 . As a result, the upper euro box 400 and the mounting portion 300 may be integrated.

Meanwhile, as illustrated in FIG. 8B , a hooking piece 540 may be installed on the upper wall of the lower euro box 500 . The hooking piece 540 may have a shape protruding upward from the other end of the upper wall. Therefore, as shown in FIGS. 5a and 5b, when the upper and lower euroboxes 400 and 500 are assembled with the main body 10, the hooking piece 540 is mounted on the other side of the lower eurobox 500. It may be located on the lower side of the unit 300.

As shown in FIGS. 5A and 5B , the upper euro box 400 and the lower euro box 500 may be supported by the support part 19 of the main body 10 . When the upper euro box 400 comes into contact with the support part 19 and the mounting part 300 is inserted into the curing chamber 200, it can be considered that the assembly with the main body 10 is completed.

Meanwhile, as illustrated in FIGS. 6 and 7 , the lower euro box 500 may be accommodated inside the cover box 505 with the other side open. As shown in FIG. 8B , a through hole (reference numeral not shown) may be formed on the lower side of the lower euro box 500 . The lower flow box 500 and the cover box 505 are supported by the support 19 by integrally fastening a fastening member (not shown) to the through hole (not shown), the cover box 505, and the support 19. It can be.

----------- Tray for curing objects -----------

The holding unit 300 and the upper switching units 411, 511, and 521 may be integrated as described above. In this specification, they are referred to as trays for mounting cured objects, that is, trays.

As shown in FIGS. 1 and 6 , a handle 403 may be formed on one side of the tray, specifically, on one side of the upper euro box 400 . Accordingly, the tray may open and close a portion of one side of the curing chamber 200 and one side of the upper heat radiation chamber 810 . Specifically, the tray may open and close the top and center of one side. Therefore, as shown in FIG. 6 , the upper heat dissipation unit 821 , the curing room 200 , the perforated plate, and the PCBs 110 and 120 may be observed or approached with the naked eye. Therefore, management of the curing machine is easy.

As shown in FIGS. 5A, 5B, and 8A, the holder 300 includes a holder plate 310 on which an object to be cured can be mounted, and a left plate 311 and a right plate 312 built on the left and right sides of the holder plate 310. ), including the other side plate 313 and one side plate 314 erected on the front and rear sides of the left and right side plates 311 and 312, and the hardening object accommodation space 301 formed by the plates 311, 312, 313 and 314 can do.

A plurality of through holes 310a may be formed through the mounting plate 310 in a vertical direction. Therefore, the ultraviolet rays irradiated from the lower LED 121 are well transmitted to the object to be cured mounted on the holder plate 310, so that curing can be performed smoothly.

As shown in FIGS. 5A and 5B , one side of the hardening object accommodating space 301 may be connected to the upper discharge part 511 of the upper conversion part 411 , 511 , and 521 . Accordingly, the air passing through the upper conversion units 411, 511, and 521 can be easily introduced into the curing object accommodation space 301.

Meanwhile, as shown in FIGS. 5A, 5B, and 8A , the upper end of the other side plate 313 of the holding part 300 may be positioned at a height lower than the upper ends of the left plate 311 and the upper ends of the right plate 312 . Therefore, the air does not directly escape or stay in the curing object accommodation space 301, and after cooling the curing object and the curing chamber 200 for a certain period of time, the left plate 311 and the right plate of the holder 300 (312) can escape.

The mounting unit 300 may be positioned at the center of the curing chamber 200 by being inserted into the mounting groove 221 of the assembly unit on one side of the main body 10 . Therefore, the upper and lower sides of the holding unit 300 may be spaced apart from the upper LED 111 and the lower LED 121 by a predetermined interval, respectively.

The mounting portion 300 may be formed of a transparent material so that the object to be cured is well cured.

----------- Exhaust pipe (900) -----------

The exhaust pipe 900 shown in FIGS. 5A, 5B, 7, and 11 includes an exhaust side plate 910 in which a left plate 911 and an upper plate 913 and a lower plate 915 connected to the left plate 911 are integrally formed. , may be formed by the second exhaust side plate 920 coupled to the right side of the exhaust side plate 910 . Therefore, one side and the other side of the exhaust pipe 900 are open. One side of the exhaust pipe 900 is connected to the other side of the curing chamber 200. Air introduced from the curing chamber 200 may be exhausted to the outside of the curing machine via the other open side of the exhaust pipe 900 and the exhaust fan 40 . Furthermore, an exhaust guide may be positioned in the exhaust pipe 900 to induce air to be smoothly exhausted to the outside and at the same time prevent ultraviolet rays from leaking out.

An exhaust guide may be located between the curing chamber 200 and the other side of the exhaust pipe 900 .

Specifically, the exhaust guide may include an upper exhaust guide 930 positioned on the upper side of the exhaust pipe 900 and a lower exhaust guide 950 positioned on the lower side of the exhaust pipe 900 .

When viewed from the side as shown in FIGS. 5A and 5B , the upper exhaust guide 930 protrudes downward from the top plate 913 of the exhaust side plate 910 . In addition, the lower exhaust guide 950 protrudes upward from the lower plate 915 of the exhaust side plate 910 .

As illustrated in FIGS. 5A and 5B , the upper exhaust guide 930 may be positioned between the open other side of the exhaust pipe 900 and the upper LED 111 . In addition, a space 200a between the mounting part 300 and the upper LED 111 may be located on one side of the upper exhaust guide 930 . Therefore, when the air passing through the space 200a between the holder 300 and the upper LED 111 passes through the exhaust pipe 900, the flow can be guided by the upper exhaust guide 930, so that the flow can be controlled. can

Also, the lower exhaust guide 950 may be positioned between the open other side of the exhaust pipe 900 and the lower LED 121 . The space 200b between the mounting part 300 and the lower LED 121 may be located on one side of the lower exhaust guide 950 . Therefore, when the air passing through the space 200b between the holder 300 and the lower LED 121 passes through the exhaust pipe 900, the flow can be guided by the lower exhaust guide 950, so that the flow can be controlled. can

As shown in FIGS. 5A, 5B, and 11, the upper exhaust guide 930 includes a first wall 937 erected vertically on one side, a first plane 935 connected to the first wall 937, and the first A first descending surface 933 connected to the other side of the plane 935 and a first rising surface 931 connected to the other side of the first descending surface 933 may be included.

In addition, as shown in FIGS. 5A, 5B, and 11, the lower exhaust guide 950 has a second rising surface 951 on one side and a second descending surface 953 connected to the other side of the second rising surface 951. , a second flat surface 955 connected to the other side of the second descending surface 953, and a second wall 957 connected to the second flat surface 955 and erected vertically on the other side.

Referring to FIG. 5A , the first rising surface 931 and the second rising surface 951 may be inclined upward from one side to the other. In addition, the first descending surface 933 and the second descending surface 953 may be inclined downward from one side to the other.

The upper exhaust guide 930 and the lower exhaust guide 950 may have the same configuration, but may be disposed oppositely as shown in FIGS. 5A, 5B, and 11 .

As shown in FIGS. 5A and 5B , the upper exhaust guide 930 and the lower exhaust guide 950 are spaced apart from each other. Accordingly, an exhaust passage 901 through which air passes may be formed.

Specifically, the exhaust passage 901 is a first reduction passage 901a formed by separating the first flat surface 935 and the second rising surface 951, and the first flat surface 935 and the second descending surface. The first increasing path 901b formed by spaced apart 953, the second reducing path 901c formed by spaced apart first descending surface 933 and the second flat surface 955, the first rising surface 931 ) and the second increasing path 901d formed by being spaced apart from the second plane 955. The vertical width of the first reduction furnace 901a and the second reduction furnace 901c decreases from one side to the other side. In addition, the vertical width of the first increasing path 901b and the second increasing path 901d increases from one side to the other. Therefore, as shown in FIG. 5B , the upper and lower widths of the exhaust passage 901 may repeatedly decrease and increase from one side to the other side. The above-described exhaust passage 901 can prevent harmful ultraviolet light sources emitted from the LED from leaking out of the curing machine due to being blocked by the exhaust guide.

Meanwhile, the left and right widths of the exhaust passage 901 may be constant. Therefore, it does not affect the air flow.

Meanwhile, the exhaust guide may be detachably connected to the exhaust side plate 910 by a fastening member (not shown) such as a bolt. As shown in FIG. 11 , flanges (reference numerals not shown) may be formed at one end and the other end of the exhaust guide so that the fastening member (not shown) passes therethrough.

Meanwhile, the second exhaust side plate 920 may be detachably connected to the partition wall 17 constituting the main body 10 . For example, a fastening member (not shown) such as a bolt may be integrally fastened to the second exhaust side plate 920 and the partition wall 17 so that the second exhaust side plate 920 and the partition wall 17 are detachably connected to each other. Also, in the same way, the second exhaust side plate 920 may be detachably connected to the exhaust side plate 910 .

-------------- Exhaust fan (40) --------------

The exhaust fan 40 shown in FIGS. 2, 4, 5a, and 5b is supported by the other side cover 13 of the main body 10 and is located on the other side of the exhaust pipe 900.

At this time, the exhaust fan 40 may be spaced apart from the other side of the exhaust pipe 900 at a predetermined interval. The reason for this is to send some of the exhausted air to the inside of the main body 10 because the air volume of the exhaust fan 40 is sufficient, and since a blowing fan and a suction fan are installed in addition to the exhaust fan 40 in the curing machine, vibration and the like This is to prevent vehicle noise.

As shown in FIGS. 5A and 5B , since the exhaust fan 40 is positioned on the other open side of the exhaust pipe 900 , the air exhausted from the exhaust pipe 900 may be exhausted to the outside of the curing machine.

As shown in FIGS. 5A and 5B , the exhaust fan 40 may include a central hub 41 and a plurality of wings (reference numerals not shown) connected to the hub 41 and surrounding the hub 41 . can

An upper side of the exhaust fan 40 based on the hub 41 may be located on the other side of the upper exhaust guide 930 . In addition, the lower side of the exhaust fan 40 based on the hub 41 may be located on the other side of the lower exhaust guide 950 .

The exhaust fan 40 may be installed in an exhaust port (reference numeral not shown) of the other cover 13 shown in FIGS. 2, 5a and 5b.

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Describing an example of the air flow within the curing machine of the above-described invention, first, the air outside the curing machine is introduced into the main body 10 through the suction fan and the suction hole, passes through the blowing fan and the supply unit in order, and then passes through the heat radiation room. cools the heat sink in Thereafter, the flow of air is turned 180 degrees through the conversion unit and flows into the upper and lower sides of the curing chamber 200 to cool the object to be cured and the inside of the curing chamber 200, and then flows into the exhaust pipe 900 and flows through the exhaust guide. After passing through the exhaust pipe 900, the exhaust fan 40 can be exhausted to the outside of the curing machine or to the internal spaces 31 and 33 of the main body 10.

Meanwhile, the blowing fan, the supply unit, and the heat radiation chamber are vertically symmetrical with respect to the curing chamber 200 and the exhaust pipe 900.

The curing machine of the example is designed as a modular type so that a plurality of curing machines can be applied in parallel according to the capacity of the curing machine.

As described above, although it has been described with reference to the preferred embodiments of the present invention, those skilled in the art can vary the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. It can be changed or modified accordingly.

** Description of major symbols **
10: body 19: support
20: suction fan 40: exhaust fan
50: exhaust port 110: upper PCB
111: upper LED 120: lower PCB
121: lower LED 200: curing room
300: mounting part 400: upper euro box
411, 511, 521: upper conversion part 411: upper inlet part
412: lower inlet 500: lower euro box
412, 512, 522: lower conversion unit 511: upper discharge unit
512: lower discharge part 521: upper conversion part
522: lower switching unit 610: upper blowing fan
620: lower blowing fan 710: upper supply unit
720: lower supply unit 810: upper heat sink
820: lower heat sink 900: exhaust pipe
930: upper exhaust guide 931: first rising surface
933: first descending surface 935: first plane
950: lower exhaust guide 951: second rising surface
953: second descending surface 955: second plane

Claims (5)

curing room;
A tray for mounting a curing object including a mounting portion inserted into the curing chamber;
It is installed on the upper and lower sides of the curing chamber, Upper and lower LED modules for irradiating ultraviolet rays to the upper and lower sides of the mounting unit;
Upper and lower heat dissipation chambers located above and below the upper and lower LED modules;
Upper and lower air inlet ducts disposed above and below the LED module and connected to one side of the tray;
an upper and lower switching unit for connecting the upper and lower air inlet ducts and the upper and lower portions of the tray to each other;
an exhaust pipe connected to the other side of the curing chamber;
Upper and lower exhaust guides positioned above and below the exhaust pipe;
upper and lower blowing fans connected to the upper and lower air inlet ducts;
Including; an exhaust fan positioned to be spaced apart from the other side of the exhaust pipe,
The upper and lower conversion units and the upper and lower blowing fans are located on one side and the other side of the upper and lower heat radiation chambers,
The upper switching unit and the upper exhaust guide are located on one side and the other side of the space between the holding unit and the upper LED,
The lower switching unit and the lower exhaust guide are located on one side and the other side of the space between the holding unit and the lower LED,
The upper exhaust guide includes a first plane on one side, a first descending surface connected to the other side of the first plane, and a first rising surface connected to the other side of the first descending surface,
The lower exhaust guide includes a second rising surface on one side, a second descending surface connected to the other side of the second rising surface, and a second plane connected to the other side of the second descending surface,
The upper exhaust guide and the lower exhaust guide are spaced apart from each other to form an exhaust passage in the exhaust pipe.
hardener. The method of claim 1,
The exhaust guide includes an upper exhaust guide positioned at an upper side of the exhaust pipe and a lower exhaust guide positioned at a lower side of the exhaust pipe,
The space between the tray and the upper LED module is connected to the upper switching unit and is located on one side of the upper exhaust guide,
The space between the tray and the lower LED module is connected to the lower switching unit and is located on one side of the lower exhaust guide. delete The method of claim 1,
The exhaust flow path is a first reduction formed by spacing the first plane and the second rising surface, and a first increase formed by spacing the first plane and the second descending surface, and the first descending surface and the first reduction A curing machine comprising a second reducing furnace formed by spaced apart two planes, and a second increasing furnace formed by spacing the first rising surface and the second plane apart. The method of claim 1,
The exhaust fan includes a hub and wings connected to and surrounding the hub,
The curing machine, wherein the upper and lower sides of the hub are located on the other side of the first lowered surface and the other side of the second plane, respectively.

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