KR100729429B1 - The baking device for the fluorescent lamps - Google Patents

Abstract

A firing apparatus for a lamp is disclosed. Such a lamp firing device is provided with a lamp conveying means for conveying a lamp by rotating a plurality of rollers, and an upper portion of the lamp conveying means, and a buffer disposed between a low temperature section, a high temperature section, and a low temperature region and a high temperature region. It is divided into a section includes a heating means for sequentially supplying heat of different temperatures to the lamp passing through the temperature intervals to be fired. Such a lamp firing apparatus has an advantage that the lamp firing process can be efficiently carried out by applying a heating section consisting of a high temperature, a low temperature, and a buffer section to a lamp conveying unit of a roller rotation method.

Fluorescent, lamp, firing, heating, buffer, exhaust

Description

The baking device for the fluorescent lamps}

1 is a perspective view schematically showing a lamp firing apparatus according to a preferred embodiment of the present invention.

FIG. 2 is a side structural view schematically showing the lamp firing apparatus shown in FIG.

3 is a perspective view showing in detail the lamp transport means of the lamp firing apparatus shown in FIG.

4 is a front view of the lamp firing apparatus shown in FIG.

5 is an enlarged perspective view showing an enlarged view of the supply unit shown in FIG. 1;

FIG. 6 is a cross-sectional view showing a section “A-A” in FIG. 5; FIG.

7 is an enlarged perspective view showing an enlarged exhaust part of the lamp firing apparatus shown in FIG. 1;

The present invention relates to a firing apparatus for a lamp, and more particularly, to a firing apparatus for a lamp, which includes a lamp conveying unit of a roller rotation method, which allows an efficient firing process to proceed by passing the lamp through a heating section including a buffer section. .

In general, a manufacturing process of a fluorescent lamp (hereinafter referred to as a lamp) includes a process of applying a phosphor to the interior of the lamp, a process of firing the coated phosphor, a vacuum exhaust process of exhausting the internal gas of the fired lamp, and gas injection The process is then divided into sutures.

In addition, a phosphor coating device, a firing device, and an exhaust device are used for each process to perform each process of the lamp. In particular, the capillary lamp widely used as a light source for the backlight of the liquid crystal display panel can be manufactured through the above manufacturing process.

The tubular lamp is a tubular tube having an outer diameter of several mm, and includes a cold cathode fluorescent lamp and an external electrode fluorescent lamp.

In addition, the lamp may be properly fired by a standing type firing apparatus.

That is, the standing type firing apparatus does not insert the lamp into the quartz tube, the lamp is placed in an upright position and seated directly on the rotating jig, and then fixed and rotated by an O-ring to transfer the lamp, and the lamp is heated at a high temperature range, It is a method of baking while passing a heating section consisting of a low temperature temperature section and a buffer section disposed therebetween.

Therefore, the lamp sequentially passes through such a low temperature section, a buffer section, and a high temperature section to dry the phosphor made of a binder, a solvent, a binder, an adhesive, and the like.

However, such a conventional firing apparatus has a problem that is difficult to be applied to other firing apparatuses by being limited to the standing firing apparatus.

In addition, such a firing apparatus has a problem that deterioration of quality and working environment may be contaminated by foreign substances such as smoke generated during firing remaining in the firing apparatus.

Therefore, the present invention has been made to solve the above problems, the object according to a preferred embodiment of the present invention is to efficiently fire by applying a heating method consisting of a high temperature, low temperature, buffer section to the roller conveying lamp transfer unit It is to provide a firing apparatus for a lamp that can proceed the process.

Another object of the present invention is to provide a firing apparatus for a lamp which can be provided with a supply section and an exhaust section in a heating section to prevent deterioration of quality by exhausting the heat used for firing the lamp to the outside.

In order to achieve the above object, a firing apparatus for a lamp according to a preferred embodiment of the present invention includes a lamp conveying means for conveying a lamp by rotating a plurality of rollers; And it is provided on the upper portion of the lamp transfer means, and divided into a low-temperature section, a high-temperature section, and a buffer section disposed between the low temperature and high temperature, by sequentially supplying different temperatures of heat to the lamp passing through the temperature intervals and firing Provided is a firing device for a lamp comprising a heating means to.

Hereinafter, a firing apparatus of a lamp according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

1 is a perspective view schematically showing a lamp firing apparatus according to a preferred embodiment of the present invention, FIG. 2 is a side structural view of the lamp firing apparatus, FIG. 3 is a perspective view showing a substrate transfer part of the lamp firing apparatus, and FIG. It is a front view of a lamp baking apparatus.

As shown in the drawing, the lamp firing apparatus proposed by the present invention is divided into heating sections having various temperature ranges, and heating means (1) for supplying and heating different temperatures of heat to the lamps L passing through the heating sections sequentially. ), Disposed below the heating means 1, is provided with a roller conveying means (2) of the roller rotation method for conveying the lamp (L), and in the adjacent position of the lamp conveying means (2) the heating means ( And circulation means (3, 5) for injecting / discharging the heat supplied from 1) to the lamp (L).

In the lamp firing apparatus having such a structure, the lamp conveying means (2) is provided with a plurality of rollers (R) to accumulate the lamp (L), by rotating these rollers (R) to rotate the lamp (L) in the horizontal direction It consists of the first and second transfer portion (2a, 2b) to be transferred to.

Since these 1st and 2nd conveyance parts 2a and 2b have the same structure mutually, it demonstrates by the 1st conveyance part 2a below.

The first conveying part 2a includes sprockets 7 installed on the frame 12 at predetermined intervals, a chain V mounted on the sprockets 7 to enable power transmission, and the sprockets 7. A driving motor 9 for transmitting rotational power to any one of the sprockets 7 and a pair of rollers R provided on the chain V to which the lamp L is seated. It includes a support 10a.

The sprockets 7 are rotatably provided on two or more sides of the frame 12 to prevent the chain V from sagging.

In addition, the support 10a is integrally coupled to the upper portion of the chain V, and a rotation shaft of the roller R is rotatably coupled to one side by a bearing.

And, the support 10a is provided with another support 10b on the opposite side to face each other. At this time, the lamp (L) is seated on the upper portion of the pair of roller (R).

Therefore, since the pair of rollers R, 15a and 15b, which protrude at both ends thereof are rotatably coupled to the pair of supporting portions 10a and 10b, respectively, the ramps accumulated when the rollers R are rotated. (L) can be transferred in one direction.

In addition, the pair of rollers R may rotate the stacked lamp L in place by rotating by the rotating part 11 during forward transfer.

The rotating part 11 is a pinion gear 14 provided at one end of the pair of rollers R and a rack gear fixedly provided at the inner frame 16 and engaged with the pinion gear 14. (Rack Gear 13).

Therefore, when the chain (V) is rotated, the support (10a, 10b) is advanced, and a pair of rollers (R) coupled to the support (10a, 10b) rotatably move forward, at this time Since the pinion gear 14 provided in the pair of rollers R is engaged with the fixed rack gear 13, the pair of rollers R may rotate in place.

As a result, since the pair of rollers R rotates, the lamp L seated on the pair of rollers R rotates in place and is advanced in one direction by the lamp conveying means 2.

In the above, the lamp has been described in the case of the forward movement in the state of rotating the rotation, but the present invention is not limited to this, the lamp does not rotate, but the forward movement in a state that is simply mounted on a pair of rollers This may also apply.

In addition, a plurality of rollers are connected to the motor by a belt or a chain or the like, and when the motor is driven, a plurality of rollers rotate in place to transfer the stacked lamps forward.

On the other hand, the heating means (1) is provided on the upper portion of the roller (R), the low temperature and high temperature temperature sections are arranged in sequence to properly fire the lamp (L).

In more detail, the heating means 1 is the inlet heating unit h1 at the inlet side, the first heating unit h2 which is disposed continuously in the inlet heating unit h1 and forms a low temperature section, and the high temperature section. Is disposed between the second heating unit h3 and the first heating unit h2 and the second heating unit h3 so that the heat of the second heating unit h3 is set to the first heating unit h2. It includes a buffer portion (Buffer Portion (B)) to prevent the inflow to minimize the thermal shock and the exit side heating portion (h4).

In the heating means arranged in such a structure, the entrance and exit heating parts h1 and h4 are respectively disposed at the entrance and exit sides of the heating means 1 to preheat the lamp L and at the same time the heating means 1 The internal temperature prevents the temperature from being lowered by the outside air. At this time, the temperature of the inlet and outlet heating unit (h1, h4) is maintained at a temperature range of 150-250 ℃, preferably 200 ℃.

The first heating unit h2 forms a low temperature section and maintains a temperature range of 350-450 ° C., preferably 400 ° C. Typically, the component of the phosphor is composed of a binder, a fluorescent substance, a solvent, a binder, and the like. Among these components, the first heating part h2 removes the binder, which is a polymer material.

The second heating unit h3 forms a high temperature section and maintains a temperature range of 550-650 ° C., preferably 600 ° C. to fire the lamp L. The lamp L passes through such a high temperature section to dissolve the binder in the phosphor component so that the phosphor binds to the inner wall of the glass.

The buffer part B is disposed between the first heating part h2 and the second heating part h3, and is maintained by maintaining a temperature range of 450-550 ° C., preferably about 500 ° C. The high temperature heat | fever which generate | occur | produces in 2 heating part h3 is prevented from moving to the area | region of 1st heating part h2.

That is, the high temperature heat generated by the second heating unit h3 flows into the relatively low temperature region of the first heating unit h2 due to convection and the like, so that the temperature of the first heating unit h2 is higher than or equal to the set temperature. It is possible to prevent the plastic operation for the lamp (L) from being unstable due to the thermal shock generated by rising to.

Therefore, by arranging the buffer portion B as described above, the firing operation on the lamp L can be performed more stably.

In the above, the temperature of each heating unit is limited to 200 ° C., 400 ° C. and 500 ° C. to 600 ° C., but the present invention is not limited thereto, and the temperature may be appropriately changed.

In addition, although it demonstrated above to four heating parts, this invention is not limited to this, It can also arrange | position two and three heating parts, or five or more heating parts.

The inlet and outlet heaters h1 and h4, the first and second heaters h2 and h3, and the buffer unit B each generate heat by applying independent heating methods. Since it has the same structure, it demonstrates by the side heating part h1 hereafter.

That is, as shown in FIGS. 1 and 4, the entrance heating part h1 has a housing 20 in which an empty space is formed and a heater (not shown) is provided, and the interior of the housing 20. A heating tube (17) installed at the upper side to flow air, an inlet tube (19) connected to the inlet side of the heating tube (17), into which outside air is introduced, and air heated at the outlet side of the heating tube (17) It includes a discharge pipe 21 for discharging to the circulation means (3,5).

Therefore, the inside of the housing 20 is heated to a predetermined temperature by a heater, the air introduced through the inlet pipe 19 is heated by this internal atmosphere temperature in the process of passing through the heating pipe 17 to open the state The furnace is discharged through the discharge pipe 21.

The heating method having the same structure is independently applied to the first and second heating units h2 and h3, the entry and exit heating units h1 and h4, and the buffer unit B, thereby providing various types of firing lines. Temperature ranges can be arranged.

Meanwhile, the circulation means 3 and 5 supplied with the heat are mounted on the upper portion of the lamp transfer means 2 so as to correspond to both sides of the lamp L, thereby supplying the heat to the lamp L and firing it. After firing, the heat is discharged to the outside.

The circulation means 3 and 5 are composed of a supply part 3 for injecting heat to the lamp L and an exhaust part 5 for discharging the heat passing through the lamp L to the outside.

Since the supply part 3 and the exhaust part 5 are respectively mounted to each heating part and have the same structure, it is demonstrated by the supply part 3 and the exhaust part 5 of the side heating part h1 hereafter.

As shown in FIG. 5, the supply part 3 is arranged in a case (Case) 30 in which heat is supplied and stored therein, and is arranged on one side of the case 30 to direct heat to the lamp L direction. At least one injection nozzle 23 for injection.

The case 30 is connected to the discharge pipe 21 of the inlet heating unit h1 (FIG. 1), so that the heat heated from the inlet heating unit h1 (FIG. 1) is introduced into the case 30 through the outlet tube 21. Can be supplied.

And, as shown in Figure 6, the injection nozzle 23 is protruded to a predetermined length on one side of the case 30, the injection hole (P) is formed therein to spray the heat.

In addition, since the plurality of injection nozzles 23 are arranged in a row, it is possible to simultaneously inject hot air laterally.

Therefore, the injected hot air is discharged to the outside through the spray nozzle 23 and then fires the lamp L by passing through the inside and the outside of the lamp L through one side of the adjacent lamp L.

At this time, in order to guide the heat more efficiently in the direction of the lamp (L), the inclined surface 36 of a predetermined angle is formed on the lower surface 34 of the injection nozzle (23). Heat is injected from the injection nozzle 23 by the inclined surface 36 to be guided downward so that one end of the lamp L may be more efficiently supplied.

That is, since the lamp (L) is typically a small tubular diameter, it passes through the pass line lower than the height of the injection nozzle 23, so it is necessary to appropriately induce heat downward by the inclined surface 36 as described above. have.

As described above, the hot air injected by the supply unit 13 fires the lamp L in the process of passing through the lamp L. Then, the heat generated by firing the lamp L may be discharged to the outside through the exhaust unit 15.

As shown in FIG. 7, the exhaust part 5 has a suction hole 25 formed at one side thereof, and the main body 38 sucks in the heat, and the main body 38 discharges the sucked heat to the outside. It consists of a pipe 27 to be made.

The main body 38 may be stored by inhaling heat by forming an empty space therein. In addition, since the suction hole 25 has a long hole shape, the area that can be sucked can be widened so that the heat discharged from the lamp L can be easily introduced.

At this time, the suction hole 25 is not limited to the long hole shape, it is possible to form a hole of various shapes such as a circular hole, a semi-circular hole.

As described above, the firing operation can be efficiently carried out by spraying heat to the lamp L through the supply unit 3 of the circulation means 3 and 5 and firing it, and discharging it by the exhaust unit 5.

Hereinafter, the operation of the lamp firing apparatus according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in more detail.

As shown in Figs. 1 to 7, when the lamp L is fired using the lamp firing apparatus proposed by the present invention, first, the heating means 1 is driven to open in the space through which the lamp L will pass. It is supplied to maintain an appropriate heating atmosphere.

That is, the heater (not shown) passes through the heating tube 17 provided therein with the air introduced through the inlet tube 19 of each of the heating units h1, h2, h3, h4 and the buffer unit B. Is heated to a constant temperature. Preferably, the inlet heating unit h1 and the outlet heating unit h4 are heated to about 200 ° C., and the first heating unit h2 is heated to about 400 ° C. to form a low temperature section, and the second heating unit h3. ) Is heated to about 600 ℃ to form a high temperature section. In addition, the buffer B is heated to a temperature of about 500 ° C.

In this way, the hot air heated in each of the heating units h1, h2, h3, h4 and the buffer unit B passes through each of the heating units h1, h2, h3, h4 and the buffer unit B through the discharge pipe 21. It is injected into the roller area by being supplied to the supply part 3 of.

Therefore, the roller area through which the lamp L passes will maintain the atmosphere above a predetermined temperature by the heat as described above.

In this state, the roller L of the ramp transfer means 2 is driven so that the lamp L accumulated on the roller R enters the region of the heating means 1.

The driving process of the ramp transfer means 2 will be described in detail. By driving the motor assembly 9, one of the sprockets 7 is rotated, and the chain V is rotated by the rotation of the sprockets 7. Will rotate.

When the chain V rotates, the support part 10a moves forward, and the pair of rollers R rotatably coupled to the support part 10a also move forward to interlock with each other. Since the pinion gear 14 provided on the roller R is engaged with the fixed rack gear 13, the pair of rollers R may rotate in place.

As a result, since the pair of rollers R rotates, the lamp L seated on the pair of rollers R rotates in place and is advanced in one direction by the lamp conveying means 2.

When the lamp L passes through the inlet heating part h1 by this process, the lamp L is preheated by heat of about 200 °.

That is, the heat injected through the injection nozzle 23 of the supply unit 3 passes through the inside and the outside of the lamp L, and the firing of the lamp L may proceed in this process.

The heat passing through the lamp L is introduced into the suction hole 25 of the exhaust part 5 and discharged to the outside through the pipe 27.

Therefore, the smoke and the like generated in the firing process of the lamp L can be efficiently exhausted to the outside.

In this way, the lamp L fired by the inlet heating part h1 is transferred to the first heating part h2 area, and is fired by heat of 400 ° C. by the first heating part h2. At this time, the binder of the phosphor applied to the lamp (L) can be removed.

Then, while the lamp L is fired in the first heating portion h2, the heat of about 600 ° C. generated in the second heating portion h3 is moved to the first heating portion h2 region by convection or the like. Thermal shock to the lamp (L) may occur, but this movement may be prevented by the buffer unit (B).

That is, the buffer part B supplies hot air having a temperature of about 500 ° C. and thus has a middle temperature range of the first and second heating parts h 2 and h 3. The movement to the first heating portion h2 is prevented.

As described above, the lamp L fired in the first heating portion h2 is fired at a temperature of about 500 ° C. in the buffer portion B, and passes at a temperature of 600 ° C. while passing through the second heating portion h3. Heated.

The firing operation for the applied phosphor may be completed while the lamp L passes through the second heating portion h3.

And the lamp L which passed the 2nd heating part h3 area | region is finally processed through the exit side heating part h4.

Through the above-described process, the lamp L may be appropriately calcined.

As described above, the lamp firing apparatus according to the preferred embodiment of the present invention has an advantage that the lamp firing process can be efficiently carried out by applying a heating section consisting of a high temperature, a low temperature, and a buffer section to a roller conveying lamp conveying unit. .

In addition, the supply portion for injecting the heat is arranged on one side of the roller of the lamp, the other side has an advantage to prevent the deterioration by exhausting the heat and smoke used for firing the lamp to the outside.

The present invention can be variously modified by those skilled in the art to which the present invention pertains without departing from the scope of the present invention as claimed in the claims, and is not limited to the specific preferred embodiments described above. .

Claims (14)

Lamp conveying means for conveying a lamp by rotating a plurality of rollers; And It is provided in the upper portion of the lamp conveying means, the first heating portion of the low temperature section, the second heating portion of the high temperature section, the buffer portion disposed between the first heating portion and the second heating portion, and the first heating portion And heating means for sequentially supplying heat of different temperatures to the lamp by arranging the inlet heating part arranged in front and the exit heating part arranged in the rear of the second heating part. Lamp transfer means for transferring a lamp; Heating means which is provided on an upper portion of the lamp conveying means and is divided into several temperature zones to sequentially supply heat of different temperatures to the lamps passing through the temperature zones to be fired; And And a circulation means provided at an adjacent position of the lamp transfer means to inject / discharge heat supplied from the heating means to the lamp. Lamp conveying means for conveying a lamp by rotating a plurality of rollers; Heating means provided at an upper portion of the roller and partitioned into several temperature zones to sequentially supply heat of different temperatures to a lamp passing through the temperature zone and to fire the lamp; And And a circulation means provided at an adjacent position of the roller to inject / discharge heat supplied from the heating means to the lamp. According to any one of claims 1 to 3, wherein the lamp conveying means is provided with a pair of first and second conveying portions respectively provided in the frame corresponding to each other, the pair of first and second conveying A part is provided on the chain, a plurality of sprockets that are installed at regular intervals on the side of the frame, the chain is mounted on the sprockets capable of power transmission, the drive motor for transmitting rotational power to any one of the sprockets, the chain And a support part for rotatably supporting a pair of rollers on which the lamp is seated, and a rotating part for rotating when the pair of rollers move forward. According to claim 4, wherein the rotating part is provided with a rack gear fixed to the frame, the pair of rollers are integrally provided, and the pinion gear is rotated by meshing with the rack gear, when the support is advanced, And the pinion gear rotates so that the pair of rollers rotates in place so that the lamp seated on the pair of rollers can simultaneously rotate and move horizontally. delete delete delete The housing of claim 1, wherein the inlet and outlet heating parts, the first and second heating parts, and the buffer part are provided with an empty space therein and are provided with a heater, and are installed in the housing and in the air flow process. And a heating tube to be heated, an inlet tube connected to the inlet of the heating tube, into which outside air is introduced, and a discharge tube connected to the outlet of the heating tube to discharge the heated air. According to claim 2 or 3, wherein the circulation means is provided on one side of the lamp for supplying the heat supplied from the heating means to the lamp and the other side of the lamp is provided on the other side of the heat outside the firing operation is carried out Lamp firing apparatus including an exhaust for discharging to the. The lamp of claim 10, wherein the supply part is connected to the heating means, and the case is configured to include a case in which heat is supplied and stored therein and at least one injection nozzle arranged on one side of the case to inject heat in a lamp direction. Firing device. The firing apparatus of claim 11, wherein the spray nozzle is configured to stably guide heat to the lamp by forming an inclined surface at a lower portion thereof. 11. The lamp firing apparatus of claim 10, wherein the exhaust part comprises a main body through which suction holes are formed at one side thereof, and a pipe provided to the main body to discharge the sucked heat to the outside. 14. The apparatus of claim 13, wherein the suction hole has a long hole or a circular shape.

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