KR20100012617A - Manufacturing method of light projector board - Google Patents

Abstract

PURPOSE: A manufacturing method of a light transmissive plate for a ceiling lamp is provided to achieve uniform thickness of plate and prevent drooping after installation of the plate. CONSTITUTION: A manufacturing method of a light transmissive plate for a ceiling lamp comprises the steps of fixing a packing to the upper edges of a transparent glass panel with tongs, pouring an acrylic resin on the top of the transparent glass panel, laying decoration fibers(50) on the acrylic resin(40), placing the rough face of a translucent glass panel on the transparent glass panel, attaching the transparent glass panel and the transparent glass plate and the translucent glass panel by removing the tongs successively, holding the edges of the attached panel with the tongs again, hardening the acrylic resin of a molded product while maintaining the temperature of a tub at 45~47°C for 4~5 hours, raising the tub temperature to 74~76°C and gradually lowering to 50°C, bringing out the molded product, and separating the tongs and the transparent and translucent glass panels.

Description

Manufacturing method of light projector board for ceiling lamps {Manufacturing method of Light projector board}

The present invention relates to a method for manufacturing a ceiling lamp for a ceiling lamp, and more particularly, a manufacturing process is simple and the manufacturing cost can be reduced, as well as to minimize the defect rate of the product and to improve the quality competitiveness of the ceiling lamp. It is about.

With the development of the industry, the residential environment and office environment are being upgraded and diversified, and lighting fixtures such as ceiling lamps are designed to reduce the fatigue of eyes while providing decorative effects in addition to the basic functions of illuminating the interior. It is becoming.

Accordingly, lighting fixtures are equipped with floodlights or translucent covers that add a variety of colors and patterns to create a more elegant and luxurious atmosphere while maintaining appropriate illumination.

In particular, it has been suggested that ceiling lamps can be used to create an interior decoration effect by smoothly controlling the light of the lamp by forming irregularities on the surface of the glass or forming a translucent layer in the same way as a colored paint coating. Due to its characteristics, it is difficult to lighten it, and it is vulnerable to shocks, which is easy to be damaged during installation or use, and due to the installation on the ceiling, glass fragments may scatter or immediately fall, causing safety accidents. there was.

Recently, an acrylic resin that is lighter than such glass, easily passes ultraviolet light, has good light resistance, and has excellent workability, has been widely developed.

For example, Korean Patent No. 10-0529546 discloses a method for manufacturing a skin panel and a panel with no warp and soft lighting and flame retardancy.

However, such a manufacturing method has a problem that the production process is very complicated and cumbersome and requires a lot of work time and cost, so that productivity is considerably lowered and cannot be mass produced.

Furthermore, the mixture of polyester powder and water applied to glass fibers, and the starch component paste, when combined with polymethyl methacrylate, cause chemical reactions, swelling and numerous bubbles, resulting in inferior product defects. In addition to being high, there was a problem of easily thermal deformation.

In addition, since the glass fiber coated with a mixture of polyester powder and water is put into electricity and heated, a non-woven fabric or window paper, which is susceptible to heat, is not applicable. Therefore, there is a limit in forming various patterns.

In addition, since all glass plates used in the prior art are so-called matts, both sides of the finished molding are blurry, so the light transmittance is considerably dropped by diffuse reflection, and the packing consists of a simple tube between a pair of glass plates. Due to the compression without a certain size, the chemical composition is biased to one side, there was a problem that the thickness of the molding is not formed uniformly.

Thus, the present inventor has studied the manufacturing method of a ceiling lamp floodlight which can simplify the manufacturing process and minimize the defect rate of the product, and can be formed uniformly in thickness, and as a result, The invention was created and completed.

Therefore, an object of the present invention is to provide a method for manufacturing a floodlight plate for a ceiling lamp such that the manufacturing process is simple and the manufacturing cost can be reduced.

Another object of the present invention is to provide a method of manufacturing a floodlight for a ceiling lamp for minimizing the defective rate of the product to improve the productivity.

Still another object of the present invention is to provide a method of manufacturing a floodlight plate for a ceiling lamp to prevent the floodlight plate from sagging during installation and use.

Still another object of the present invention is to provide a method of manufacturing a floodlight for a ceiling lamp such that the thickness of the floodlight plate can be uniformly formed.

Still another object of the present invention is to provide a method of manufacturing a floodlight plate for a ceiling lamp to minimize eye fatigue during use.

In order to achieve the above object, the present invention is a first step of fixing the packing with a plurality of tongs on the upper edge of the transparent glass plate, a second process of pouring acrylic resin on the upper surface of the transparent glass plate, and decorated on the acrylic resin The third step of separating the fibers, and the rough surface of the translucent glass plate on the decorative fiber facing the transparent glass plate and the tongs are sequentially separated, and the transparent glass plate and the semi-transparent glass plate are in close contact with each other, and then the pliers along the circumference again A fourth step of fixing and a fifth step of curing the acrylic resin while immersing the molded body formed through the fourth step in the water tank and maintaining the temperature of the water tank at 45 to 47 ° C. for 4 to 5 hours; After raising the temperature to 74-76 ° C., the molded body which passed through the sixth step and the sixth step to gradually drop to 50 ° C. was removed from the water tank, and the tongs and the transparent glass plate and the half Provided is a method of manufacturing a floodlight plate for a ceiling lamp including a seventh step of separating the transparent glass plate.

The present invention according to the manufacturing method as described above has a very advantageous effect that the manufacturing process is simple and significantly lower the defect rate of the product compared to the prior art to greatly improve the productivity and significantly reduce the manufacturing cost.

In addition, since the light emitting plate manufactured by the present invention maintains a slightly convexly curved state upwards, it is naturally maintained horizontally by its own weight when installed on the ceiling, and thus there is a special effect of preventing the phenomenon of the light emitting plate sagging downward.

In addition, since the present invention uses a packing in which a core having an outer diameter smaller than its inner diameter is inserted inside the hollow tube, the glass plates maintain a constant distance from each other when the glass plates are in close contact with each other. It is effective.

In addition, the present invention is impregnated and hardened inside the acrylic resin by pressing a variety of decorative fibers, and one side of the acrylic resin is formed transparently to create a luxurious and natural three-dimensional effect not only excellent interior decoration effect but also strong lamp There is also a very beneficial effect of radiating light as soft and soft natural light to prevent glare and to minimize eye reflections, thereby remarkably reducing eye fatigue.

Hereinafter, with reference to the accompanying drawings, a method of manufacturing a floodlight ceiling lamp according to an embodiment of the present invention will be described in more detail.

Prior to this, terms to be described below are defined in consideration of functions in the present invention, and it should be understood that they should be interpreted as concepts and inherent commonly used meanings consistent with the technical spirit of the present invention.

In addition, when it is determined that the detailed description of known functions or configurations related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a process diagram schematically showing a method of manufacturing a floodlight panel according to an embodiment of the present invention, as shown in the manufacturing method of the floodlight panel according to an embodiment of the present invention is roughly divided into the first to seventh process, selection According to the acrylic resin and decorative fiber pre-treatment process and user-customized process further comprises.

<Acrylic resin pretreatment process>

To 0.4 part by weight of methyl methacrylate, 3 to 4 parts by weight of stearic acid and 0.05 to 0.07 parts by weight of a curing agent were added to the polymerization reactor and maintained at 94 to 96 ° C. for 1 hour. The acrylic resin 40 required for the present invention is prepared by gradually lowering to a degree of polymerization.

In this case, various colors may be expressed by adding a small amount of a fluorescent agent or various color materials, and the finished floodlight plate B may be more easily separated from the molded body by adding a small amount of a release agent.

<Decorative Fiber Pretreatment Process>

The decorative fiber supplied in the form of a roll is cut to a certain standard, and the surface thereof is mixed with 39 to 41 parts by weight of methyl ethyl ketone, and 3.5 to 4.5 parts by weight of acetone, based on 0.8 parts by weight of cellulose. One solution is evenly coated with a thickness of 0.3 ~ 0.7mm to prepare a decorative fiber 50 required for the present invention.

The decorative fiber, which has undergone such a decorative fiber pretreatment process, maintains a slightly convex upward state because the coated solution shrinks the surface of the decorative fiber 50 during the curing process.

Therefore, the completed floodlight plate (B) is also slightly convexly curved upward, so that the ceiling plate (B) can be prevented from sagging downward by its own weight when installed on the ceiling, and the decorative fiber of the flexible property is fluffed. It is possible to secure convenience when moving decorative fiber or working on transparent glass plate by keeping it in a certain state without breaking.

In addition, the decorative fiber 50 induces the dispersion of light through various patterns and patterns to obtain a soft and soft lighting effect.

Here, the decorative fiber 50 may use a variety of decorations such as glass fiber, non-woven fabric, window paper, etc., but it is preferable to use glass fiber having excellent light transmitting property and less heat deformation.

<Step 1>

As shown in FIG. 1A, the packing 20 is placed on the top edge of the reinforced transparent glass plate 10 that maintains the horizontal state, and is fixed to each other with a plurality of tongs 30 along the packing.

At this time, the ends of the packing 20 facing each other open the acrylic resin 40 so that the air or the internal air introduced during the forming or foaming process is formed while the self-heating and curing is smoothly discharged.

Here, the packing 20, as shown in Figure 2, it is preferable to use that the core material 22 of the paper material having an outer diameter smaller than the inner diameter is inserted inside the hollow tube 21, which is a separate It can be prepared through a pretreatment process.

<Step 2>

As shown in FIG. 1B, the acrylic resin 40 of the gel state after the pretreatment process is poured on the upper surface of the transparent glass plate 10 which has undergone the first process to be flattened to some extent.

At this time, the amount of acrylic resin 40 is appropriately adjusted according to the thickness of the floodlight plate (B) to be manufactured.

<Step 3>

As shown in Figure 1c, the decorative fiber 50 is cut to a predetermined standard by a decorative fiber pretreatment process, and the decorative fiber 50 having a coating layer 51 formed on the surface is laid flat on the acrylic resin 40 which has undergone the second process.

At this time, the decorative fiber 50 can be performed more quickly and easily by using a narrower left and right width than the transparent glass plate 10.

Here, when the decorative fiber 50 is a material that is thermally deformed, such as a synthetic resin, it can be variously expressed by bending or folds in a form without a predetermined pattern, and various textures as well as a three-dimensional feeling are expressed according to the shape, thereby being more dynamic. Excellent decoration.

In addition, since the decorative fiber 50 is present in the form impregnated in the acrylic resin 40, even if scratches or friction is applied, the pattern is not damaged, and there is no color fading, so that its service life can be greatly extended. do.

<Step 4>

As shown in FIG. 1D, the rough surface of the translucent glass plate 60 is placed on the decorative fiber 50 which has undergone the third process so as to face the transparent glass plate 10, and the separators 30 which are already fixed are sequentially separated. The transparent glass plate 10 and the translucent glass plate 60 are brought into close contact with each other, and then fixed to the tongs 30 again along the circumference thereof.

Here, the tongs 30 is to prevent the acrylic resin 40 from leaking in the molding process and to be cured while maintaining a constant thickness. The transparent glass plate 10 and the translucent glass plate 60 are firmly adhered to each other. Use a good grip strength to maintain.

In addition, the semi-transparent glass plate 60 means that one side of the transparent glass plate has an astel method or an etching process so that the other side is bright when viewed from one side, but this side is blurred when viewed from the opposite side.

Such a rough surface of the translucent glass plate 60 is to form a rough surface corresponding to the acrylic resin 40 is cured, and one side of the translucent plate (B) formed thereby is translucent to scatter the illumination It gives off a soft and soft light.

<Operator Selection Process>

After the fourth step, the packing is fixed with a plurality of tongs 30 on the upper edge of the translucent glass plate 60 according to the worker's choice (step 1-1), and the acrylic resin is smoothed on the smooth surface of the translucent glass plate 60. (40) Pour (Step 2-1), spread decorative fiber 50 on the acrylic resin (Step 3-1), and place the rough side of the other translucent glass plate on the decorative fiber below the translucent glass plate ( 60) and then, while separating the already fixed tongs 30 in sequence to closely adhere the bottom of the transparent glass plate 10 and the translucent glass plate 60 of the upper part together, the tongs 30 along the circumference It is also possible to form the plurality of molded bodies 100 by adding the step of fixing again in the step (step 4-1).

By repeating such a worker selection process and stacking several translucent glass plates 60 continuously, several light transmitting plates B can be obtained with a small number of glass plates, and at the same time, curing and cooling processes using a water tank T can be simultaneously performed. This improves productivity and significantly reduces manufacturing costs.

Here, since each detailed process according to the worker selection process is the same as or similar to the first to fourth processes described above, a detailed description thereof will be omitted.

<Step 5>

As shown in FIGS. 1E and 1F, the molded body 100 formed through the fourth process is immersed vertically in a water tank T maintaining a temperature of 47 ° C. or lower, and then the temperature of the water tank T is 45˜. It is maintained at 47 ° C. for 4 to 5 hours to cure the acrylic resin in the molded body 100.

At this time, the opening of the packing 20 is located upward to prevent the water of the water tank (T) flows to cause a chemical reaction with the acrylic resin 40, and through this bubble or glass plate generated from the acrylic resin 40 The air introduced in the process of closely contacting them is naturally discharged to the outside by water pressure.

Here, the temperature of the water tank (T) can be raised using a steam generator or an electric heater, and the temperature rise of the water tank (T) due to heat generated by the chemical reaction of the acrylic resin (40) and the decorative fiber (50). Can be adjusted to maintain optimum conditions by periodically circulating the coolant in the bath.

<Step 6>

5th process Next, after raising the temperature of the water tank T to 74-76 degreeC, it lowers gradually to 50 degreeC and cools the molded object 100. FIG.

Here, the water tank (T) can harden and cool the acrylic resin 40 while controlling the temperature with a steam generator or an electric heater using a single water tank, and a molded body using a plurality of water tanks maintaining different temperatures. It is also possible to cure and cool while moving (100).

<Custom process>

6th process Next, according to a user's request, after raising the temperature of the water tank T to 100 degreeC, the process of gradually decreasing to 50 degreeC may be added.

The floodlight plate B, which has undergone the user-customized process, facilitates the printing of trademarks or letters on the surface and at the same time allows the printed layer to be stably maintained.

<Step 7>

As shown in FIG. 1G, the molded body 100 subjected to the sixth process is removed from the water tank T, cooled at room temperature for about 1 to 2 hours, and then the tongs 30, the transparent glass plate 10, and the translucent glass plate 60 are removed. By sequentially separating and dismantling, a molded article in which the acrylic resin is impregnated with a certain thickness in the gap of the decorative fiber, that is, the transparent plate B can be obtained.

<Example 1>

After fixing a packing in which a core having a diameter of 3 mm is inserted into a hollow portion of a tube having an outer diameter of 7 mm on the edge of a transparent glass plate having a width of 100 cm, a length of 187 cm, and a thickness of 5 mm, the stearic acid 3 is added to 0.4 part by weight of methyl methacrylate. 5700 g of acrylic resin polymerized by weight and 5 parts by weight of a curing agent was poured, and a surface 95, length 182, thickness coated with a solution obtained by mixing 40 parts by weight of methyl ethyl ketone and 4 parts by weight of acetone with respect to 0.8 parts by weight of cellulose on the surface. Lay the decorative fiber of 1mm size, put the coarse side of the translucent glass plate of the same standard as the transparent glass plate on the opposite side to the transparent glass plate, and close it, and fix it with forceps along the circumference to form the molded body, and then After immersing in the tank, the acrylic resin was cured while maintaining the temperature of the tank at 46 ° C. for 4 to 5 hours, and then the temperature of the tank was increased to 75 ° C., and then gradually cooled to 50 ° C. Notes taken out by the shaped body in a water bath and then remove the clip and a transparent glass plate and a transparent glass plate is cut to the required standard finishing the completion of the ceiling lamp translucent plate according to the present invention.

<Example 2>

After fixing a packing in which a core having a 5 mm outer diameter was inserted into the hollow of a 10 mm outer tube at the edge of a transparent glass plate having a width of 100 cm, a height of 187 cm, and a thickness of 5 mm, a stearic acid 3 was added to 0.4 part by weight of methyl methacrylate. Pour weight part and 6600 g of acrylic resin polymerized with 0.05 part by weight of a curing agent, and coated with a solution obtained by mixing 40 parts by weight of methyl ethyl ketone and 4 parts by weight of acetone with respect to 0.8 parts by weight of cellulose on the surface. Lay the decorative fiber of 1mm size, put the coarse side of the translucent glass plate of the same standard as the transparent glass plate on the opposite side to the transparent glass plate, and close it, and fix it with forceps along the circumference to form the molded body, and then After immersing in the tank, the acrylic resin was cured while maintaining the temperature of the tank at 46 ° C. for 4 to 5 hours, and then the temperature of the tank was increased to 75 ° C., and then gradually cooled to 50 ° C. Next, after raising the temperature of the water tank to 100 ° C., the molded body slowly cooled to 50 ° C. is removed from the water tank, and the tongs, the transparent glass plate, and the semi-transparent glass plate are separated, and then cut and trimmed to the required standard for the ceiling lamp according to the present invention. The floodlight plate was completed.

<Example 3>

After fixing a packing in which a core having a diameter of 3 mm is inserted into a hollow portion of a tube having an outer diameter of 7 mm on the edge of a transparent glass plate having a width of 100 cm, a length of 187 cm, and a thickness of 5 mm, the stearic acid 3 is added to 0.4 part by weight of methyl methacrylate. 5700 g of acrylic resin polymerized by weight and 5 parts by weight of a curing agent was poured, and a surface 95, length 182, thickness coated with a solution obtained by mixing 40 parts by weight of methyl ethyl ketone and 4 parts by weight of acetone with respect to 0.8 parts by weight of cellulose on the surface. Lay the 1mm decorative fiber, place the coarse side of the semi-transparent glass plate of the same size as the transparent glass plate on the opposite side to the transparent glass plate, and close it, fix it with forceps along the circumference, and then continue to the top edge of the translucent glass plate. After fixing the packing with a number of tongs, pour 5700g of acrylic resin on the smooth side of the translucent glass plate and lay the decorative fiber of 95mm wide, 182mm thick and 1mm thick. On the decorative fiber, the rough surface of the other translucent glass plate is placed opposite the translucent glass plate, and the transparent glass plate and the translucent glass plates are brought into close contact with each other while separating the forceps sequentially, and then fixed together with the forceps along the circumference thereof to form a molded body. Then, the molded product was immersed in a water bath and the acrylic resin was cured while maintaining the temperature of the water tank at 46 ° C. for 4 to 5 hours. After removing from the tongs and the transparent glass plate and the semi-transparent glass plate and cut to the required specifications to finish the finished ceiling lamp according to the present invention.

As shown in FIG. 3, the ceiling light transmitting plate manufactured according to this embodiment has a coating layer 51 formed on a surface thereof, and acrylic resin is formed on both sides of the decorative fiber 50 protruding upwardly toward the center thereof. 40 forms the impregnated to wrap. As a result of measuring the light transmittance of the floodlight plate (B), due to the interference effect of the light of the decorative fiber, the characteristic background color and pattern appear three-dimensionally clear, and it was evaluated that there is almost no glare phenomenon by preventing excessive scattering of light. .

On the other hand, the present invention is not limited to the above-described embodiment and the accompanying drawings, it can be changed to other embodiments equivalent to substitution and equivalent within the scope without departing from the spirit of the present invention in the technical field to which the present invention belongs It will be apparent to those of ordinary skill.

Figure 1a to 1g is a process diagram schematically showing a manufacturing method of a floodlight floodlight plate according to an embodiment of the present invention,

Figure 2 is a side sectional view showing a main part of the packing used in the manufacturing method of the floodlight floodlight plate according to an embodiment of the present invention,

Figure 3 is a main side cross-sectional view showing a floodlight plate manufactured by a method for manufacturing a floodlight floodlight plate according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: transparent glass plate 20: packing

21: Tube 22: Heartwood

30: clamp 40: acrylic resin

50: decorative fiber 60: translucent glass plate

100: molded body

Claims (9)

A first step of fixing the packing with a plurality of tongs to an upper edge of the transparent glass plate; A second step of pouring acrylic resin on the upper surface of the transparent glass plate; A third step of covering the decorative fiber on the acrylic resin; A fourth step of placing the rough surface of the translucent glass plate on the decorative fiber so as to face the transparent glass plate and separating the forceps sequentially, closely adhering the transparent glass plate and the translucent glass plate to each other, and then fixing the forceps again along the circumference thereof; A fifth step of curing the acrylic resin by dipping the formed body formed through the fourth step into a water tank and maintaining the temperature of the water tank at 45 to 47 ° C. for 4 to 5 hours; A sixth step of raising the temperature of the water tank to 74 to 76 ° C. and then gradually lowering the temperature to 50 ° C .; A seventh step of removing the tongs, the transparent glass plate, and the translucent glass plate by removing the molded article having passed through the sixth step from the water tank; Floodlight manufacturing method for a ceiling lamp comprising a. The method of claim 1, After the sixth step, after raising the temperature of the water tank to 100 ℃, the method for manufacturing a floodlight for a ceiling lamp for the ceiling lamp is added to gradually drop to 50 ℃. The method of claim 1, wherein the acrylic resin, The manufacturing method of the floodlight for ceiling lamps containing 3-4 weight part of stearic acid and 0.05-0.7 weight part of hardening | curing agents with respect to 0.4 weight part of methyl methacrylates. The method of claim 3, wherein the acrylic resin, After maintaining for 1 hour at 94 ~ 96 ℃ using a polymerization machine, the temperature was gradually lowered to 45 ℃ polymerization lamp for ceiling lamp manufacturing method. According to claim 1, wherein the surface of the decorative fiber, The manufacturing method of the ceiling lamp for ceiling lamps which coated 39-41 weight part of methyl ethyl ketones, and 3.5-4.5 weight part of acetone with respect to 0.8 weight part of cellulose. The method of claim 1, wherein the decorative fiber, A method of manufacturing a floodlight panel for ceiling lamps, which is any one of glass fiber, nonwoven fabric, and window paper. The method of claim 1, wherein the packing, A method of manufacturing a floodlight panel for a ceiling lamp having a core material inserted into a hollow tube having an outer diameter smaller than the inner diameter thereof. The method of claim 1, In the process of fixing the packing with the forceps of the first step, the manufacturing method of the floodlight plate for the ceiling lamp which opened the part where the both ends of the packing facing each other. The method of claim 1, A first-first step of fixing the packing with a plurality of tongs to an upper edge of the translucent glass plate after the fourth step; Step 2-1 pouring acrylic resin on the smooth surface of the translucent glass plate; Step 3-1 of covering the decorative fiber on the acrylic resin; Step 4-1 of placing the coarse surface of the other translucent glass plate on the decorative fiber facing the translucent glass plate, separating the forceps sequentially, closely adhering the transparent glass plate and the translucent glass plates together, and then fixing the forceps again along the circumference thereof. ; Floodlight manufacturing method for ceiling lamp to add a.

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