KR101316557B1 - Manufacturing apparatus of cover for LED lamp - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing a cover for an LED lamp, the raw material is injected into the inside, and the extrusion material is melted into the extrusion molding to a predetermined shape, and installed in the rear end of the extrusion device, the coolant is contained therein And an extruded product extruded from the extruder and discharged to the outside of the extruder to be cooled by the cooling liquid while passing through the inside, and installed at a rear end of the cooling tank, and the extruded product extruded from the extruder. It includes a feeder to be transferred in the direction of the cooling tank, wherein the cooling liquid is a photocatalyst coating solution is used, and when the extrudate passes through it to cool the extruded product and to form the photocatalyst coating film on the outer surface of the extruded product It provides an apparatus for manufacturing a cover for LED lighting.
According to the present invention as described above, by receiving the photocatalyst solution in the cooling tank, when the molded product extruded from the extruder passes through the cooling tank, the molded product is cooled by the photocatalyst solution and a photocatalyst coating film is formed on the outer surface of the molded product. It is possible to improve productivity by reducing the additional cost of the separate coating liquid spraying device and shortening the working time by forming a photocatalyst coating film on the outer surface of the molding without requiring a coating liquid spraying device. Not only can significantly reduce the amount of coating solution to be used, there is a high antibacterial and deodorant effect.

Description

Manufacturing apparatus of cover for LED lighting fixtures {Manufacturing apparatus of cover for LED lamp}

The present invention relates to an apparatus for manufacturing a cover for LED lighting, and more particularly, the photocatalyst coating film is formed on the outer surface of the molding without requiring a separate coating liquid spraying device, thereby reducing the accompanying cost of the separate coating liquid spraying device. In addition, to improve the productivity by reducing the working time, and can significantly reduce the amount of the coating liquid used in the coating process, and relates to a manufacturing apparatus of the LED lamp cover for high antibacterial and deodorant.

In general, LED lamps (hereinafter referred to as "LED lamps") are not only very low power consumption compared to conventional bulbs such as fluorescent lamps and incandescent lamps, but also have long life and small size and volume. It is very widely used.

In addition, LED lamps are widely used as lighting according to various landscapes, and are mainly used to produce various colors of lights in special fields such as advertisements or various traffic signals.

In particular, recently, technologies have been developed to replace fluorescent tubes using LEDs having a much longer life and higher light intensity than fluorescent tubes.

Such LED fluorescent lamps generally have a body portion having a heat dissipation portion for dissipating heat generated from the LED to the outside, a printed circuit board (PCB) installed on the upper surface of the body, and a plurality of LEDs installed on the upper surface of the PCB. And the upper portion is formed to be curved and consists of a cover portion coupled to the upper portion of the lower body.

The LED fluorescent lamp is characterized in that the heat generated from the LED is radiated to the outside by the heat dissipation unit to prevent thermal deformation and shortening of the life of each component, but also has a longer life and higher intensity of illumination light than fluorescent lamps.

In addition, in the case of the LED used in the LED fluorescent light fixture, it is preferable that the shape of the cover part is manufactured in a hemispherical shape so that light emitted from the LED can be diffused and irradiate light in a wide space.

Figure 1 is a flow chart showing a conventional method for manufacturing a cover for LED lighting.

Looking at the manufacturing method of the conventional LED lamp cover for reference with reference to Figure 1 as follows.

First, when the raw material is input through the hopper of the extruder, the input raw material is discharged to the outside while being formed in a predetermined shape by the extruder (S110), the discharged molded product is cooled by the cooling liquid contained in the cooling tank while passing through the cooling tank. )

The molding cooled by the coolant is moved by the feeder and cut into lengths designed by the cutter.

Conventional cover for LED light fixtures manufactured as described above may be coated with a photocatalyst by spraying or dipping the outer surface of the cover after the cutting is completed to increase the antimicrobial properties.

However, the conventional cover for LED lamps takes the purchase cost and maintenance cost for purchasing the coating device while using a separate coating device to form a coating film on the outer surface of the molding, thereby increasing the manufacturing cost and separate In addition to the increase of the working time due to the coating process of the coating liquid to be sprayed on the transported molding, there was a problem that the coating liquid deposition efficiency deposited on the outer surface of the molding compared to the sprayed coating liquid is significantly lower.

The present invention has been made to solve the above problems, an object of the present invention is to provide a photocatalyst coating film on the outer surface of the molding without requiring a separate coating liquid spraying device to reduce the incidental cost of the separate coating liquid spraying device In addition to reducing the working time, productivity can be improved, and the amount of coating liquid used in the coating process can be significantly reduced, and the antimicrobial and deodorizing cover for LED lamps is provided. Is in.

Another object of the present invention to provide an apparatus for manufacturing a cover for LED lighting that can significantly improve the durability of the coating film.

According to an aspect of the present invention for achieving the above object, in the manufacturing apparatus of the cover for the LED lighting fixture coupled to the LED lighting fixture, the raw material is injected into the inside, and melted the injected raw material and extrusion molding in a predetermined shape An extruder, a cooling tank installed at a rear end of the extruder, and having a coolant contained therein, the extruded product extruded from the extruder and discharged to the outside of the extruder to be cooled by the coolant while passing through the inside; It is installed at the rear end of the cooling tank, and includes a feeder to allow the extruded product extruded from the extrusion device to be transferred in the direction of the cooling tank, wherein the coolant is a photocatalyst coating solution is used, the extruded product when the extruded product passes The cover of the LED lighting fixture to allow the cooling and to form the photocatalyst coating film on the outer surface of the extruded product. Providing a control device.

In addition, the photocatalyst coating solution is preferably 1 to 7% by weight of titanium dioxide (TiO 2), 70 to 95% by weight of the solvent and 0.1 to 7% by weight of xylene.

In addition, one side may further include a circulation means installed in the cooling tank to circulate the cooling liquid accommodated in the cooling tank.

In addition, the circulation means is a circulating pump, one end is connected to one side of the circulating pump, the other end is disposed on one side near the inlet of the extruded product in the interior of the cooling tank to inject the coolant to the extruded product And a recovery nozzle having one end accommodated in the cooling tank and the other end connected to one side of the circulation pump to recover the cooling liquid contained in the cooling tank to the circulation pump.

In addition, the photocatalyst coating solution may be further mixed with 0.1 to 3% by weight of carbon fiber.

In addition, the carbon fiber is mixed with the powder of the antimicrobial agent, nano fine particles titania photocatalyst and talc, the antimicrobial agent: talc: nano fine particles titania photocatalyst in a weight ratio of 1: 0.1 ~ 1: 0.1 ~ 1, the mixture 0.01 ~ It is preferable that the raw material mixture is prepared by mixing tetrabromobisphenol powder as 15% by weight and the remaining amount, and thermally curing the prepared raw material mixture and then carbonizing in an inert atmosphere.

According to the present invention as described above, by receiving the photocatalyst solution in the cooling tank, when the molded product extruded from the extruder passes through the cooling tank, the molded product is cooled by the photocatalyst solution and a photocatalyst coating film is formed on the outer surface of the molded product. It is possible to improve productivity by reducing the additional cost of the separate coating liquid spraying device and shortening the working time by forming a photocatalyst coating film on the outer surface of the molding without requiring a coating liquid spraying device. Not only can significantly reduce the amount of coating solution to be used, there is a high antibacterial and deodorant effect.

Further, by further comprising carbon fibers in the photocatalyst solution, there is an effect that can significantly improve the durability of the photocatalyst coating film formed on the outer surface of the molded article.

1 is a flow chart showing a manufacturing method of a conventional LED lamp cover;
Figure 2 is a schematic view of the manufacturing apparatus of the cover for the LED lighting device according to an embodiment of the present invention,
Figure 3 is a flow chart showing a manufacturing method of the cover for the LED lighting device according to an embodiment of the present invention,
Figure 4 is a flow chart showing a method of manufacturing a carbon fiber according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic diagram of a manufacturing apparatus of a cover for an LED lamp according to an embodiment of the present invention, Figure 3 is a flow chart showing a method of manufacturing a carbon fiber according to an embodiment of the present invention.

As shown in FIG. 2, the apparatus 1 for manufacturing a cover for an LED lamp according to an exemplary embodiment of the present invention includes an extruder 10, a cooling bath 20, a circulation means 30, and a drying unit 40. And a feeder portion 50 and a cut portion 60.

The extruder 10 has a main body 11 having a raw material supply hopper 11a formed on one side and a discharge nozzle 11b for discharging the compressed raw material on the other side, and rotatably installed inside the main body 11 to supply raw materials. In addition to transferring the raw material flowing into the hopper (11a), the screw 12 for compressing the raw material in the vicinity of the discharge nozzle (11b), and is installed inside the main body 11 to melt the raw material conveyed by the screw 12 It is configured to include a heating unit 13, the raw material transferred to the raw material supply hopper (11a) is pressed by the screw 12 in the molten state by the heating unit 13 and molded into a certain shape to the outside Serves to discharge.

It is apparent that the extruder 10 is well known to be able to purchase and use a commercially available one to those skilled in the art, and a detailed description thereof will be omitted.

The cooling tank 20 is formed in a box shape with an approximately open upper portion, and the cooling liquid S is accommodated therein so that the molded product is cooled by the cooling liquid S when the molded product formed by the extruder 10 passes. In addition, the photocatalyst coating film (F) is formed on the outer surface of the molding.

Here, the cooling solution S may be a coating solution in which 1 to 7 wt% of titanium dioxide (TiO 2), 70 to 95 wt% of a solvent, and 0.1 to 7 wt% of xylene are mixed.

The composition of the coating solution is prepared by stirring titanium dioxide (TiO 2) to dilute in ethanol as a solvent to prepare a mixture, and adjusting the viscosity while adding xylene to the prepared mixture.

As described above, ethanol may be used as the solvent, and when the content exceeds 95% by weight of the total composition, the drying time becomes longer, and the workability is lowered. It is preferable to set it as 70 to 95 weight%.

Titanium dioxide (TiO ₂ ) is a pigment for coloring a white color on the outer surface of the molding, and the light generated from the LED is converted into white light while passing through the LED lamp cover (C) and irradiated to the irradiation area and In addition, it acts as an antibacterial and deodorant by oxidatively decomposing harmful substances in the surrounding area.

Xylene is a means for adjusting the viscosity of the coating amp is added to the coating liquid, it is used by adjusting the amount according to the required viscosity.

On the other hand, the cooling liquid (S), that is, the coating liquid is preferably mixed with 0.1 to 3% by weight of carbon fiber so that the viscosity and durability can be improved.

Here, the carbon fiber is a mixture of an antimicrobial agent, nanoparticle titania photocatalyst, talc and tetrabromobisphenol powder, which is included in the coating solution to improve the viscosity and durability of the coating solution as well as to improve the antibacterial and deodorizing effect. do.

Looking at the manufacturing method of the carbon fiber, as shown in Figure 3, the antimicrobial agent, nanoparticles of titania photocatalyst and talc powder is mixed, but the antimicrobial agent: talc: nanoparticles of the titania photocatalyst in the weight ratio of 1: 0.1 ~ 1: 0.1 ~ 1 Produced by mixing (S11) and mixing the tetrabromobisphenol powder as 0.01-15% by weight of the mixture and the remaining amount to prepare a raw material mixture (S12) and then heat-curing the prepared raw material mixture and carbonizing in an inert atmosphere (S13).

Here, when the natural mineral powder mixture is mixed at less than 0.01% by weight, there may be a problem in that the content of the natural mineral is too low, so that the desired antibacterial function is not sufficient, and in contrast, when the natural mineral powder is more than 15% by weight, subsequent fiber formation There may be a problem that the trimming in the step occurs or the physical properties of the carbon fiber to be finally obtained, in particular, the physical properties as the fiber is lowered.

However, it will be understood by those skilled in the art that the content of the natural mineral powder mixture may be further increased to increase the antibacterial function even at the expense of improving the physical properties of the photocatalyst coating film (F).

In addition, the production of carbon fibers consists of preparing a raw material mixture containing tetrabromobisphenol in a fibrous form, heat curing and carbonizing in an inert atmosphere to produce carbon fibers. It can be achieved by spinning through a nozzle having a diameter of about 1.0mm at a spinning temperature of about ℃, the production of such a fiber is the same or similar to a conventional fiber manufacturing process, which can be easily understood by those skilled in the art will be.

Antimicrobial agents used in the production of elastic fibers are mainly white, nahanbaek, and eucalyptus bark powders. In addition, inorganic metal antimicrobial agents containing antimicrobial activities such as silver, copper, and zinc, such as Aluminosilicate (Zeolite), CalciumPhosphate, Zirconium Phosphate, SolubleGlass and the like can be used.

The nanoparticle titania photocatalyst is a porous having an average particle diameter of 10 to 1000 nm, has anatase crystal phase, has a specific gravity of about 3.9, a refractive index of about 2.53, and a hardness (Mohr's) of about 5.7, and transmits titania. As a result of the analysis by electron micrograph, the titania particles have a large amount of nano-sized pores inside the particles, and the Tiiti powder heated to below 100 ℃ has a specific surface area of 325㎡ / g, and the total pore area is The central pore diameter was 948.817 m 2 / g and 0.8 nm. The total pore surface area was 948.817 m 2 / g, the total press-in volume was 4.2449 ml / g, and the median pore diameter (volume) was 0.00088 μm.

The nano fine particle titania photocatalyst serves to improve adhesion with the coating agent when the prepared carbon fiber is mixed with a coating agent containing titanium dioxide (TiSo2).

Talc is a rock belonging to a monoclinic system with a mica-like crystal structure, and its color is white, silvery white, light green, etc. It is a material for processing art paper or used for cosmetics, heat-resistant fireproof materials, and the like. Talc is known to have a good amount of far-infrared radiation, antibacterial function, chemical neutrality, high whiteness, and pigment development.

Talc is preferably porous having an average particle diameter of 5 ~ 100㎛.

Tetrabromobisphenol is a flame retardant, it is added to the mixture of the antimicrobial agent, nano fine particles titania photocatalyst and talc powder serves to obtain an antibacterial effect and to have a nonflammable effect.

The carbon fiber produced as described above is intended to sufficiently exhibit the natural function, especially the antibacterial function of the natural minerals, and at the same time the coating component such as titanium dioxide (TiSO2) and polyurethane resin by the fibrous structure of the carbon fiber and By increasing the bonding force of the antimicrobial properties significantly improved while having a feature to improve the adhesion and durability of the coating film (F).

In addition, carbon fiber has a role of improving the flame retardancy of the photocatalyst coating film (F) formed on the outer surface of the molding as the flame retardancy is increased by the tetrabromobisphenol LED, the photocatalyst coating film (F) applied to the outer surface of the molding LED There is a feature that can be prevented in advance to remove from the molding by the heat generated from.

On the other hand, unless otherwise stated, all mixing ratios used in the present invention refers to content ratios in the total composition, not relative ratios such as percentages, as determined by the present inventors to obtain the optimum composition through repeated experiments. However, the present invention is not intended to have any particular limitation on the upper limit or the lower limit thereof, but only the ratio determined by the inventors' experiments as an optimal ratio for realizing the present invention.

The circulation means 30 has a circulation pump 31 installed outside the cooling tank 20, one end of which is connected to the circulation pump 31, and the other end thereof near one side of the molded product introduced into the cooling tank 20. A recovery nozzle disposed in the cooling tank 20 so that the injection nozzle 32 and one end is installed in the cooling tank (S) accommodated in the cooling tank 20 and the other end is installed on one side of the circulation pump 31. Comprising (33), by allowing the cooling liquid (S) contained in the cooling tank 20 to be circulated to prevent the cooling liquid (S), that is, the photocatalyst coating liquid to harden and to maintain the cooling effect of the molding according to the photocatalyst coating liquid. To play a role.

The drying means is installed at one side of the molding path conveyed by the feeder unit 50, which will be described later, in the rear end of the cooling tank 20, and sprays air to the molding to dry the photocatalyst coating liquid applied to the outer surface of the molding. do.

The feeder unit 50 includes a plurality of rollers 52 which are rotatably installed at upper and lower portions of the feeder body 51 installed at the rear end of the drying means in the conveying path of the molding, and the molding material being transported in one side of the feeder body 51. And it comprises a power supply means for providing a rotational force to the roller 52, and serves to transport the molding discharged from the extruder 10 in the direction of the cutter to be described later.

The cutter is configured to include a cutting body 61 installed at the rear end of the feeder unit 50 and a cutting blade 62 installed on one side of the cutting body 61 so as to be movable. The molded product transported by the cut to the designed length serves to discharge to the outside.

The drying means, the feeder unit 50 and the cutter are known means that can be purchased and used commercially available to those skilled in the art, in one embodiment of the present invention Although the shape and configuration of the drying means, the feeder unit 50 and the cutter are limited, the present invention is not necessarily limited thereto, and the molding means may be dried, the conveying means, and cut to a certain length. Any means can be used.

 Figure 4 is a flow chart showing a manufacturing method of the cover for the LED lighting device according to an embodiment of the present invention

Referring to Figure 4 attached to the operation of the manufacturing apparatus of the LED lamp cover according to an embodiment of the present invention configured as described above are as follows.

First, when the raw material is input to the raw material supply unit of the extruder, the input raw material is transferred by the screw, has a plasticity while being heated by the heating unit, and discharged to the outside through the discharge nozzle as it is compressed and conveyed by the screw Extruded to a predetermined shape according to the outlet shape of the (S21)

The molded article is conveyed by the feeder part and flows into the inside of the cooling tank (S22), while being cooled by the photocatalyst coating liquid while passing through the cooling liquid contained in the cooling tank, that is, the photocatalyst coating liquid, and the photocatalyst coating liquid is deposited on the outer surface. )

At this time, the photocatalyst coating solution is circulated by the circulation means, and the photocatalyst coating solution is preferably sprayed on the outer surface of the molding from the discharge hose of the circulation means so that the deposition force of the photocatalyst coating liquid adhering to the outer surface of the molding is further improved.

The molded article having the photocatalyst coating liquid deposited on the outer surface passes through the cooling tank while being continuously transferred by the feeder unit, and is dried by a drying unit installed at the rear end of the cooling tank to form a photocatalyst coating film on the outer surface.

The molding having a photocatalyst coating film formed on the outer surface thereof is cut to a length designed by a cutter and then discharged to the outside.

The manufacturing apparatus 1 for the cover for LED lighting according to the embodiment of the present invention as described above allows the photocatalyst coating film (F) to be formed on the outer surface of the molding without requiring a separate coating liquid spraying device, so that the separate coating liquid spraying apparatus may be used. In addition to reducing the associated costs, the coating liquid spraying process is also omitted, thereby significantly reducing the working time, thereby improving the fish properties.

In addition, by allowing the molded product to be submerged in the photocatalyst coating solution, the amount of coating liquid sprayed, that is, the amount of deposition deposited on the coating liquid relative to the amount of coating liquid to be coated on the outer surface of the molded product, is significantly increased compared to the conventional spray coating method, thereby preventing unnecessary consumption of the coating liquid. There is a characteristic.

In addition, as a result of measuring the anion by the test method KICM-FIR-1042 for the cover for the LED luminaire developed and produced according to the above-described configuration and manufacturing method, as shown in the following Table 1, the anion generation rate is measured by 1205ions / cc is not released Unlike general filter assembly, a significant amount of anion was released.

In addition, the antibacterial test using Escherichia coli, Escherichia coli, ATCC 25922 on the cover for the LED luminaire developed and produced according to the above configuration and manufacturing method, as shown in Table 2 below, E. coli is almost removed after 1 hour to reduce the bacterial reduction rate of 99.9 It was confirmed that the antibacterial property was significantly improved compared to the general LED lighting cover.

As shown above, the apparatus 1 for manufacturing a cover for an LED lamp according to an embodiment of the present invention has been shown to be able to improve productivity and significantly improve antimicrobial properties in addition to features that can reduce coating solution.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. Accordingly, the appended claims are intended to cover such modifications or changes as fall within the scope of the invention.

1: Manufacturing apparatus of cover for LED lighting
10 extruder 11 body
11a: raw material supply hopper 11b: discharge nozzle
12 screw 13 heating part
20: cooling tank 30: circulation means
31: circulating pump 32: injection nozzle
33: recovery nozzle 40: drying unit
50: feeder unit 51: feeder body
52: roller 60: cutout
61: cutting body 62: cutting blade

Claims (6)

In the manufacturing apparatus of the cover for the LED lighting fixture coupled to the LED lighting fixture,
An extrusion apparatus for inserting a raw material into the inside, and melting the injected raw material and extruding it into a predetermined shape;
A cooling tank installed at a rear end of the extruder and having a coolant contained therein, the extruded product extruded from the extruder and discharged to the outside of the extruder to be cooled by the coolant while passing through the inside; And
It is installed at the rear end of the cooling tank, and includes a feeder unit for conveying the extruded product extruded from the extrusion device in the direction of the cooling tank,
The coolant is a photocatalyst coating solution is used, if the extruded product is passed through the extrusion product is cooled and the photocatalyst coating film to be formed on the outer surface of the extruded article manufacturing apparatus.
The method of claim 1,
The photocatalyst coating solution is an apparatus for manufacturing an LED lamp cover, characterized in that the titanium dioxide (TiO2) 1 to 7% by weight, solvent 70 to 95% by weight and xylene 0.1 to 7% by weight is mixed.
The method of claim 1,
One side is installed in the cooling tank further comprises a circulation means for circulating the cooling liquid accommodated in the cooling tank, the manufacturing apparatus of the LED lamp cover.
The method of claim 3,
The circulation means
A circulation pump;
An injection nozzle having one end connected to one side of the circulation pump and the other end disposed near one side of the inside of the cooling tank where the extruded product flows into the inside, and spraying the coolant to the extruded product; And
One end is accommodated in the cooling tank, and the other end is connected to one side of the circulation pump to produce a cover for the LED lamp, characterized in that it comprises a recovery nozzle for recovering the cooling liquid contained in the cooling tank to the circulation pump Device.
The method of claim 1,
The photocatalyst coating solution is an apparatus for manufacturing a cover for LED lighting, characterized in that the carbon fiber is further mixed 0.1 to 3% by weight.
The method of claim 5,
The carbon fiber is
Mix the powder of the antimicrobial agent, nanoparticles titania photocatalyst and talc powder, in a ratio of 1: 0.1 to 1: 0.1-1, by weight ratio of antimicrobial agent: talc: nanoparticles titania photocatalyst,
0.01 to 15% by weight of the mixture and the remaining amount of tetrabromobisphenol powder is mixed to prepare a raw material mixture,
An apparatus for manufacturing an LED lamp cover, wherein the prepared raw material mixture is thermally cured and then carbonized in an inert atmosphere.

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