KR100795833B1 - Appratus for manufacturing fluorescent lamp and external electrode making method using the same - Google Patents

Abstract

A manufacturing apparatus for a fluorescent lamp and a method for forming an external electrode using the manufacturing apparatus are provided to produce a large amount of lamps by batch-processing plural glass tubes for manufacturing the lamps. A process mount(2) provides a process place. A capping unit(P1) is arranged on the process place and includes a tray on which plural electrode caps are arranged. A dipping unit(P2) is arranged to be apart from the capping unit and includes a solution container, where a conductive solder is contained. A glass tube holder(14) separably fixes the glass tubes by pressing the external surfaces of the glass tubes. A driving unit(18) includes plural drivers and moves the glass tube holder in more than two directions along the process space. An electrode cap is inserted into the glass tubes and is submerged in a conductive solder solution. A third driver(D3) changes a fixed state of the glass tube holder on the process mount and inverts the glass tubes, so that one of both ends of the glass tube faces the process space.

Description

Apparatus for manufacturing fluorescent lamp and external electrode making method using the same}

1 is a view showing the overall structure of a fluorescent lamp manufacturing apparatus according to an embodiment of the present invention.

2 is a side cross-sectional view of FIG. 1.

3 is a view for explaining the structure of the glass tube mounting means of FIG.

4 is a view for explaining the action of the glass tube mounting means of FIG.

5 is a view for explaining the detailed structure of the glass tube mounting means of FIG.

6 and 7 are views for explaining the structure and operation of the third drive unit of the fluorescent lamp manufacturing apparatus according to an embodiment of the present invention.

8 is a view showing a preferred working process of the external electrode forming method of the fluorescent lamp according to an embodiment of the present invention.

FIG. 9 is a diagram for describing a capping process of FIG. 8.

FIG. 10 is a diagram for describing a dipping process of FIG. 8.

FIG. 11 is a view for explaining a finishing step of FIG. 8.

12 and 13 are views for explaining a process of forming external electrodes on both ends of the glass tube for lamp manufacturing.

[Description of Symbols for Main Parts of Drawing]

2: workbench 4: tray 6: solution reservoir

8: Storage 10: Contact plate 12: Contact surface

14: glass tube mounting means 14a, 14b: pressure plate G: glass tube for lamp manufacturing

W: conductive solder liquid C1: electrode cap L: holder

P1: capping part P2: dipping part P3: ending part

D1: first driver D2: second driver D3: third driver

The present invention relates to a fluorescent lamp manufacturing apparatus and a method for forming an external electrode using the fluorescent lamp manufacturing apparatus, and more particularly used in the operation of forming an electrode of an external electrode fluorescent lamp (EEFL). The present invention relates to a fluorescent lamp manufacturing apparatus capable of performing batch processing while moving a plurality of lamp manufacturing glass tubes in an inline manner along a plurality of working sections for forming electrodes, and an external electrode forming method using the fluorescent lamp manufacturing apparatus.

In general, the liquid crystal display panel of the liquid crystal display device is a light receiving element that does not emit light by itself and includes a backlight unit for providing light.

The backlight unit includes a fluorescent lamp, a light guide plate, a reflective sheet and an optical sheet, and the fluorescent lamp includes a cold cathode fluorescent lamp (CCFL) and an external electrode fluorescent lamp depending on the position of the electrode. Fluorescent Lamps are well known.

In particular, the external electrode fluorescent lamp has a good light emission quality as compared to the cold cathode fluorescent lamp, the weight is light, the size can be significantly reduced, lamp life and power consumption, and assembly compatibility is excellent.

The external electrode fluorescent lamp includes a process of coating the phosphor on the inner wall surface of the glass tube for lamp manufacture, injecting a discharge gas such as an inert gas or mercury into the glass tube for lamp manufacture, sealing both ends, and forming an external electrode. It is done by

In the above processes, the external electrode forming process includes a capping step of inserting the metal caps for the electrodes at both ends of the sealed glass tube for manufacturing the lamp, and a step of dipping in the conductive solder solution with the metal cap attached thereto. An external electrode is formed.

Through this process, the external electrodes formed on both sides of the glass tube for lamp manufacture are connected to the wire terminals in a state capable of conducting electricity as already known, thereby forming an electric field inside the glass tube by the voltage applied to the wires so that the fluorescent lamps can emit light. It plays a normal role.

As a method of forming an electrode of the external electrode fluorescent lamp, there is a method of forming an external electrode of the external electrode fluorescent lamp of Korean Patent Publication No. 10-2005-0090519, filed in 2004 and published on September 13, 2005.

However, the external electrode forming method of the external electrode fluorescent lamp of the Patent Publication No. 10-2005-0090519 is provided with a mounting and conveying means for collectively processing a plurality of glass tube for manufacturing lamps in each operation for forming the electrode There is no limit to the mass production of fluorescent lamps.

In particular, the method of forming an external electrode of the external electrode fluorescent lamp of the Patent Publication No. 10-2005-0090519 proposes a method of using a separate lamp holder to fix the glass tube for lamp manufacturing in each working process lamp holder as described above In this method, it is difficult to obtain satisfactory work efficiency because the worker has to carry out the work by hand every time.

In addition, the electrode formation method by manual operation cannot be automated in the entire manufacturing process in connection with the phosphor coating process or the sealing process for manufacturing the fluorescent lamp, which is a factor that degrades the work efficiency and efficiency of the entire manufacturing process. Can be.

In addition to the above-described method using a lamp holder, a rotary method for forming an electrode while moving in a state where a plurality of glass tubes for manufacturing lamps is mounted along a circumference of a rotating plate rotating about a central axis has been proposed. The method is difficult to perform continuous work in conjunction with the pre- and post-processes, and therefore, satisfactory work efficiency and productivity cannot be expected.

The present invention has been made to solve the conventional problems as described above, an object of the present invention can easily form an external electrode on the glass tube for lamp manufacturing, in particular while moving a plurality of glass tube for lamp manufacturing in an inline manner The present invention provides a fluorescent lamp manufacturing apparatus capable of mass production by batch processing and an external electrode forming method using the fluorescent lamp manufacturing apparatus.

In order to realize the object of the present invention as described above,

Worktable providing work surface;

A capping part disposed on the working surface and having a tray on which a plurality of electrode caps are placed;

A dipping portion spaced apart from the capping portion and having a solution reservoir containing conductive solder;

Mounting means for detachably fixing in a standing state by pressing the outer surface of the glass tube for manufacturing a plurality of lamps;

A driving means having a plurality of driving parts to move the mounting means along the working surface by two driving parts in two or more directions to insert an electrode cap into glass tubes for lamp manufacture and to immerse it in a conductive solder liquid;

It provides a fluorescent lamp manufacturing apparatus comprising a.

And in order to realize the other object of this invention,

Loading a plurality of lamps for manufacturing glass tubes on the glass tube mounting means in a standing state;

Capping the electrode cap at the end of the glass tube for lamp manufacturing by a lifting and lowering operation while the glass tube mounting means is horizontally moved to a capping point;

Dipping the glass tube mounting means from the capping point in a state in which the glass tube mounting means is horizontally immersed in a solder liquid by an end of each glass tube for lamp manufacturing by a lifting and lowering operation so as to coat the conductive coating layer;

A step of finishing the end of the conductive coating layer coated on the end of each glass tube for lamp manufacturing by a lifting and lowering operation in a state in which the glass tube mounting means is horizontally moved from the dipping point to the finishing point;

It provides a method for forming an external electrode of a fluorescent lamp comprising a.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention are described to the extent that those of ordinary skill in the art can practice the present invention.

Therefore, since the embodiments of the present invention may be modified in various other forms, the claims of the present invention are not limited to the embodiments described below.

1 and 2 is a view showing the overall structure of the fluorescent lamp manufacturing apparatus according to an embodiment of the present invention, 2 denotes a work table. Then, the work of forming the external electrodes C at both ends is performed while moving the glass tubes G for manufacturing a plurality of lamps in an inline manner on the work table 2.

The worktable (2) is mounted on a normal support frame (F) can be fixed horizontally from the ground, and has a flat working surface (S) on the top of the rectangular long extending from side to side based on Figure 1 A plate body can be used.

The capping part P1 and the dipping part P2 are positioned on the work table 2.

The capping part P1 includes a tray 4 in which a plurality of electrode caps C1 are placed in an upright position as shown in FIG. 1.

The tray 4 has a plurality of fixing grooves H1 formed on one side thereof, and the electrode cap C1 is placed in an upright position in each of the fixing grooves H1.

Each of the fixing grooves (H1) is made of a size that can be easily separated in the state that one side of the electrode cap (C1) is fitted.

The material of the tray 4 may be used among metals or synthetic resins having excellent durability and wear resistance.

In addition, the electrode cap C1 may be formed in a cylindrical structure capable of wrapping a metal piece by a conventional method (banding or pressing) to wrap the outer surface of the glass tube G for manufacturing a fluorescent lamp.

The material of the electrode cap C1 may be selected from metals such as copper (Cu), silver (Ag), or aluminum (Al) having low electrical resistance and excellent conductivity. In addition, metals coated with a nickel (Ni) plating layer having excellent conductivity can be used.

In addition, a dipping portion P2 is positioned on the working surface S to be spaced apart from the capping portion P1. The dipping portion P2 includes a solution reservoir 6 in which the conductive solder liquid W is contained.

The solution reservoir 6 may have a conventional structure having a storage space 8 having an open upper side, and a predetermined amount of the conductive solder liquid W is contained in the storage space 8.

The conductive solder liquid W may be a solder liquid used in a conventional dipping operation by mixing tin (Sn), silver (Ag), and copper (Cu) at a constant ratio.

The dipping portion P2 is immersed in the state of capping the electrode cap C1 at the end of the glass tube G for lamp manufacturing in the conductive solder solution W contained in the solution reservoir 6 as shown in FIG. 1. A dipping operation for forming the conductive coating layer C2 can be performed.

Although not shown in the drawing, the solution reservoir 6 is provided with a conventional heater that allows the dipping operation to be performed while maintaining the temperature of the conductive solder liquid W contained therein at 300 degrees or more.

In addition, the solution reservoir 6 may be made by mounting a conventional ultrasonic vibrator, although not shown in the figure. The ultrasonic vibrator generates ultrasonic vibrations during the coating of the conductive solder liquid W to prevent voids from occurring in the conductive coating layer C2.

The fluorescent lamp manufacturing apparatus according to the embodiment of the present invention may further comprise an ending portion (P3) for finishing the end of the end of the glass tube (G) for the lamp manufacturing to the contact pressure after the dipping operation.

The ending part P3 is provided with a contact plate 10 on the work surface S as shown in FIG. 1 so as to finish by pressing the end of the glass tube (G) for lamp manufacturing, which has been completed dipping at a contact pressure. .

The material of the contact plate 10 is selected to use metals or synthetic resins having a low form deformation due to various impacts or contacts, and are installed on the working surface S such that the flat contact surface 12 faces upward.

In addition, the contact surface 12 may be formed by further attaching a pad of a thin film for preventing excessive contact pressure from occurring when the glass tube G for lamp manufacturing is in contact.

On the other hand, the glass tube mounting means 14 for detachably mounting the plurality of lamp glass tubes (G) for manufacturing the work surface (S) is located.

The glass tube mounting means 14 is formed to be detachably fixed to the glass tube (G) for manufacturing a plurality of lamps in a standing state.

To this end, in this embodiment, as shown in Figure 3 has a semi-circular fixing hole (H2) and the two pressing plates (14a, 14b) facing each other in close contact with each other by the pressing member (B) fixing holes (H2) The glass tube (G) for lamp manufacturing is fixed by the inner wall surface contact force of the lamp.

The pressing plates 14a and 14b may be prevented from being bent or deformed by external force, and may be selected from materials of synthetic resins that do not cause scratches, especially when contacted with glass tubes G for lamp manufacturing. have.

The pressing member B may use a bolt B1 and a nut B2 such that the pressing plates 14a and 14b face each other while the gap is narrowed to closely contact each other or vice versa.

Two or more bolts B1 may be fixed to one of the pressure plates 14a in a protruding state as shown in FIG. 3.

In addition, the other pressing plate 14b forms a fastening hole B3 into which the bolt B1 is fitted, thereby fastening the nut B2 with the bolt B1 fitted into the fastening hole B3. .

That is, by the tightening force of the nut (B2) the opposing pressure plate (14a, 14b) is in close contact with each other as shown in Figure 4 while the outer surface of the glass tube (G) for manufacturing lamps fitted inside each fixing hole (H2) Pressurized can be fixed.

The nut B2 may use a conventional butterfly bolt that can be directly manipulated by a worker without a separate tool.

The fixing holes H2 are formed to have a size smaller than the outer surface diameter of the glass tubes G for manufacturing lamps in a state where the two pressing plates 14a and 14b face each other. If the diameter size of the facing fixing holes (H2) is larger than the diameter of the glass tube (G) for lamp manufacturing, it may not be smoothly pressurized.

Each of the fixing holes H2 may be provided with a rubber or urethane contact pad R having elasticity as shown in FIG. 5.

The contact pad R serves to suppress slippage in a state in which scratches are generated or press-fixed by the inner wall surfaces of the fixing holes H2 and the glass tube G for lamp manufacturing contacting each other.

The fixing holes H2 correspond to the fixing grooves H1 formed in the tray 4 of the capping part P1 along the length direction of the glass tube mounting means 14, that is, the pressing plates 14a and 14b. Form a plurality in an array.

Although the pressing member B is not shown in the drawings in addition to the pressing structure using the tightening force of the bolt B1 and the nut B2, a plurality of lamps may be used in a conventional method using power generated from a driving source such as a motor or a cylinder or using fluid pressure. The outer surface of the glass tube (G) for manufacturing may be set to be fixed by pressure.

In the above-described embodiment, the fixing holes H2 are formed in one row between two pressing plates 14a and 14b facing each other, thereby fixing the glass tube G for lamp manufacturing as an example. The present invention is not limited to the above structure.

For example, although not shown in the drawing, three or more pressing plate bodies may be arranged in close contact with each other, and a plurality of fixing holes may be formed therebetween to fix the glass tubes G for manufacturing a plurality of lamps in an array of two or more rows. It may be.

Of course, even at this time, the pressing plate body is fixed to the glass tube (G) for lamp manufacturing while being in close contact with each other by the pressing force of the pressing member (B).

Then, the glass tube mounting means 14 are two holders (L) mounted to the support 16 of the gate type as shown in Figs. 1 and 2 so as to be positioned in a horizontal position upward from the working surface (S). Both ends can be fitted and fixed to the side.

The fluorescent lamp manufacturing apparatus according to the embodiment of the present invention further includes a driving means 18 for moving the glass tube mounting means 14 in an inline manner along the working surface (S).

The driving means 18 is a first driving unit D1 for moving the glass tube mounting means 14 along the working surface S, and a material for raising and lowering the glass tube mounting means 14 in the up and down direction. It can be comprised by 2 drive part D2.

The first driving unit (D1) may use a conventional pneumatic transfer cylinder (V1), is installed so that the support 16 can move along the working surface (S) as shown in Figs.

The glass tube mounting means 14 moves a plurality of lamp glass glass (G) while moving to the left and right along the working surface (S) when the reference to Figure 1 by the drive of the pneumatic transfer cylinder (V1). The capping part P1, the dipping part P2, and the ending part P3 may be moved to a point corresponding to the capping part P1.

In addition, the second driving unit (D2) is provided with a pneumatic transfer cylinder (V2) in the up and down direction on the support 16 side, the glass tube mounting means by the moving body 20 moving along the cylinder (V2) 14 may be configured to move up and down (see FIGS. 1 and 2).

The first driving unit D1 and the second driving unit D2 are mounted on the glass tube to a point corresponding to the capping unit P1 or the dipping unit P2 and the ending unit P3 along the working surface S. In addition to moving the means 14, the power can be generated and transmitted to move up and down at each point.

In addition to the pneumatic transfer cylinders V1 and V2, the first driving unit D1 and the second driving unit D2 are not shown in the drawings, but power is applied from a belt, a pulley, or a screw shaft connected to a conventional rack and pinion or a motor. By receiving the glass tube mounting means 14 can be set to move in two or more directions. Such a structure can be easily implemented by those skilled in the art, and thus a detailed description thereof will be omitted.

The fluorescent lamp manufacturing apparatus according to the embodiment of the present invention may further comprise a third driving unit (D3).

The third driving unit D3 is configured to invert the fixing posture of the glass tube mounting means 14 such that either one of both end portions of the glass tube G for lamp manufacturing faces the working surface S. do.

To this end, in this embodiment, as shown in FIG. 6, the motor V3 is mounted on the movable body 20 that fixes the holder L in the support 16 to receive the power generated from the motor V3. It is being reversed.

The motor V3 supports the holder L with the motor V3 axis in a fixed state to the movable body 20 so as to be rotated.

That is, the third driving unit D3 changes the holding posture of the glass tube mounting means 14 as shown in FIG. 7 by the rotational force of the motor V3, and the glass tubes for manufacturing a plurality of lamps mounted on the side of the means 14. The postures can be reversed so that either one of both ends of (G) faces downward.

In addition to the motor V3, the third driving unit D3 may use a conventional rotary cylinder or various rotating driving sources satisfying the object of the present invention.

Next, a method of forming the external electrode C while moving the glass tube G in an inline manner by using the fluorescent lamp manufacturing apparatus according to the embodiment of the present invention having the above-described structure will be described with reference to FIG. 8.

First, reference numeral Y1 refers to a loading process Y1 for fixing a plurality of glass tubes G to the glass tube mounting means 14.

This operation is fixed by loading a plurality of glass tubes (G) in the standing state, respectively, on the glass tube mounting means 14 side as shown in FIG.

Then, while the glass tube mounting means 14 is mounted on the holder L side of the support 16 as shown in the drawing, the glass tube mounting means 14 is moved in-line by the drive means 18 to each end of the glass tube G. The capping process Y2 for fitting the electrode cap C1 is performed.

This operation moves the glass tube mounting means 14 equipped with a plurality of glass tubes G to a point corresponding to the capping portion P1 located on the working surface S by the first driving unit D1.

Thereafter, the glass tube mounting means 14 is driven above the capping part P1 to move the second driving part D2 downward.

Then, the capping operation is performed while the electrode cap C1 is fitted to the end side of each glass tube G by the glass tube mounting means 14 descending as shown in FIG. 9.

When the capping operation is performed as described above, the lowering point of the glass tube mounting means 14 is appropriately set by the second driving unit D2 so that the ends of the respective glass tubes G are formed at the cap C1 for each electrode. Cap to fit into shorter length than full length (see Figure 9).

Such a capping state may improve the permeability of the solder liquid W into each electrode cap C1 when the dipping operation is performed while the electrode caps C1 are fitted to the ends of the glass tubes G. .

When the capping operation is completed as described above, the dipping step (Y3) is performed in a state where the electrode cap (C1) is fitted to each glass tube (G) end.

This operation moves the glass tube mounting means 14 to the point corresponding to the solution reservoir 6 of the dipping part P2 by the first driving part D1.

Then, the glass tube mounting means 14 is moved downward by the second driving unit D2, and as shown in FIG. 10, the end portions of the plurality of glass tubes G, into which the electrode caps C1 are fitted, are electrically conductive. Soak in the middle.

At this time, each of the electrode caps (C1) are pressed in the pressurized state by pressing the bottom surface of the solution reservoir (6) to be completely fitted to the end of each glass tube (G).

Ultrasonic vibration is generated in a state where one end of each of the glass tubes G is immersed in the conductive solder liquid W to perform a dipping operation in a conventional manner, and the glass tube mounting means 14 by the second driving unit D2. Move) up again to complete the dipping.

When the dipping operation is performed as described above, the conductive solder solution W may be coated on one end of each glass tube G, thereby forming the conductive coating layer C2.

In addition, the external electrode forming method according to the embodiment of the present invention is to finish the end of the conductive coating layer (C2) coated on one side end of each of the glass tube (G2) by the contact pressure, that is, the finishing process (Y4) It can be made to include more.

This finishing operation is flattened by pressing the end of the conductive coating layer C2 in an irregularly distributed state (for example, icicle shape) as the solder liquid W flowing down the lower ends of the glass tubes G flows after dipping. To finish.

First, the second driving unit D2 in the state in which the glass tube mounting means 14 is moved on the contact plate 10 of the ending unit P3 installed on the working surface S by the first driving unit D1. To move down again.

Then, the lower end of the plurality of glass tubes G mounted on the glass tube mounting means 14 side and the contact surface 12 of the contact plate 10 come into contact with each other as shown in FIG. The ends of the coating layers C2 of G) can be finished uniformly.

Therefore, the external electrode C may be easily formed at one end of the plurality of glass tubes G in an in-line manner through the above process.

In addition, the external electrode forming method of the fluorescent lamp according to the embodiment of the present invention may further comprise an inversion step (Y5).

This operation is completed by forming the external electrode (C) at one end of each glass tube (G), by rotating the glass tube mounting means 14 as shown in Figure 12 by the third drive unit (D3) Reverse the loading posture of each glass tube (G).

And, while the posture of each of the glass tube (G) is inverted, the external electrode (C) as shown in Figure 13 on the opposite end side of the glass tube (G) through a plurality of working processes for forming the electrode as described above, respectively It can be formed.

As described above, the present invention can easily form an external electrode at the end of the glass tube for lamp production during the manufacture of the external electrode fluorescent lamp.

In particular, since a plurality of lamp manufacturing glass tubes are mounted on the glass tube mounting means, a plurality of lamps may be processed in an in-line manner to form an electrode, and thus, a plurality of lamp manufacturing glass tubes may be processed in a batch to manufacture a large amount of lamps. can do.

Therefore, as compared with the conventional method of forming the external electrode while moving a small amount of glass tubes for manufacturing one to four lamps by a conventional hand, it is possible to obtain more improved work efficiency and productivity.

Claims (14)

Worktable providing work surface; A capping part disposed on the working surface and having a tray on which a plurality of electrode caps are placed; A dipping portion spaced apart from the capping portion and having a solution reservoir containing conductive solder; Glass tube mounting means for detachably fixing in a standing state by pressing the outer surface of the glass tube for manufacturing a plurality of lamps; A driving means having a plurality of driving parts to move the glass tube mounting means along the working surface in two or more directions by each driving part to insert an electrode cap into glass tubes for lamp manufacturing and to immerse it in a conductive solder liquid; A third driving unit for inverting one of both ends of the glass tubes for manufacturing the lamp toward the working surface while changing the fixing posture of the glass tube mounting means on the work table; Fluorescent lamp manufacturing apparatus comprising a. The method according to claim 1, The driving means includes a first driving unit for moving the glass tube mounting means left and right along the working surface, and a second driving unit for moving up and down. The method according to claim 2, The first driving unit and the second driving unit fluorescent lamp manufacturing apparatus consisting of any one of a rack and pinion, a belt and a pulley, a screw shaft connected to receive power from a pneumatic transfer cylinder or a motor. The method according to claim 1, The glass tube mounting means includes a plurality of pressing plates positioned with the glass tubes for lamp manufacturing interposed therebetween, and pressurized to press or fix the outer surface of the glass tubes for manufacturing lamps while releasing the gaps or vice versa. Fluorescent lamp manufacturing apparatus comprising a member. The method according to claim 4, The pressing member is a fluorescent lamp manufacturing apparatus, characterized in that using the bolt and nut. The method according to claim 1, The fluorescent lamp manufacturing apparatus further comprises a contact pad, The contact pad uses a urethane or rubber pad having elasticity, and the fluorescent lamp manufacturing apparatus attached to the glass tube mounting means to surround the pressing contact point of the glass tubes for manufacturing each lamp. delete The method according to claim 1, The third driving unit uses a motor or a rotary cylinder, and the drive shaft and the one side of the glass tube mounting means connected to fix the fluorescent lamp manufacturing apparatus, characterized in that for rotating the glass tube mounting means in an inverted position based on the fixing point. The method according to claim 1, The fluorescent lamp manufacturing apparatus further includes an ending portion, And an end portion of which the contact plate having a flat contact surface is disposed on the working surface to finish the conductive coating layer end of the glass tube for lamp production evenly at the contact pressure of the contact surface. Loading a plurality of lamps for manufacturing glass tubes on the glass tube mounting means in a standing state; Capping the electrode cap at the end of the glass tube for lamp manufacturing by a lifting and lowering operation while the glass tube mounting means is horizontally moved to a capping point; Dipping the glass tube mounting means from the capping point in a state in which the glass tube mounting means is horizontally immersed in a solder liquid by an end of each glass tube for lamp manufacturing by a lifting and lowering operation so as to coat the conductive coating layer; A step of finishing the end of the conductive coating layer coated on the end of each glass tube for lamp manufacturing by a lifting and lowering operation in a state in which the glass tube mounting means is horizontally moved from the dipping point to the finishing point; External electrode forming method of a fluorescent lamp comprising a. The method according to claim 10, The capping process is a method of forming an external electrode of a fluorescent lamp, characterized in that the capping by capping the end of the glass tube for manufacturing each lamp shorter than the total length of the electrode cap. The method according to claim 10, In the dipping process, the end of each lamp manufacturing glass tube in which the electrode caps are fitted is immersed in the soldering solution, and presses to fit the glass tubes for manufacturing each lamp by the entire length of the caps for the electrode. External electrode formation method. The method according to claim 10, The finishing process is a method of forming an external electrode of a fluorescent lamp, characterized in that by pressing the ends of the conductive coating layer coated on the glass tubes for manufacturing each lamp to the flat finish by the contact pressure. The method according to claim 10, The method of forming an external electrode of the fluorescent lamp further includes a process for reversing the attitude of the glass tubes for manufacturing a plurality of lamps, The inverting process is characterized in that the fluorescent lamp lamp is rotated by rotating the glass tube mounting means so that any one end of both ends of the glass tubes in the state in which the glass tube mounting means is loaded with a plurality of glass tubes for manufacturing lamps Method of forming an external electrode.

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