JP2006147558A - Manufacturing device and method for fluorescent lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing device for a fluorescent lamp which can be used for manufacturing a fluorescent lamp having an external electrode, and in particular, is simple in its series of work processes and capable of manufacturing in the mass-production of a good quality lamp. <P>SOLUTION: The manufacturing device of the fluorescent lamp comprises a chamber 2 having a treatment space of a certain size, a cassette 4 which can install detachably a plurality of glass tubes G for lamp manufacturing corresponding to the treatment space side of the chamber, and a control means which controls the connecting state of an exhaust port L1, a gas supply port L2, and a mercury filling port so that gas and mercury can be filled by discharging air in the treatment space of the chamber. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fluorescent lamp manufacturing apparatus and method which can easily manufacture a fluorescent lamp, and in particular, can mass-produce fluorescent lamps having external electrodes in a simple process.

  In general, in a cold cathode fluorescent lamp, a certain amount of gas and mercury for energizing the lamp are enclosed in a glass tube having a fluorescent material formed on the inner wall, and two electrodes are formed inside both ends of the tube. Has a structured.

  The light emitting action of the lamp is that if a high voltage is applied to the two electrodes, electrons existing inside the tube collide while moving to the electrode (positive electrode) side, and secondary electrons are emitted to discharge. Electrons that flow by such discharge collide with mercury atoms inside the tube and emit ultraviolet rays of approximately 253.7 nm, and at the same time, the ultraviolet rays excite the fluorescent material to emit visible light.

  Briefly explaining a series of steps for manufacturing the cold cathode fluorescent lamp, a step of forming a phosphor inside the glass tube, a step of sintering the formed phosphor, and exhausting and sealing the inside of the glass tube Process.

  In the above, the evacuation and sealing step means that the inside of the glass tube is evacuated and a predetermined amount of argon gas and mercury are injected, respectively, and then the opened end side of the glass tube is sealed with heat. .

  At this time, the mercury injected into the glass tube directly affects the driving of the lamp and the light emission quality, so that the mercury capsule method, the amalgam method, Mercury injection methods such as the mercury alloy method have been proposed. For example, the mercury capsule method is difficult to encapsulate liquid mercury, and the amalgam method includes Bi-In-Hg, Zn-Hg, etc. Since the melting point of such solid amalgam particles is approximately 100 to 200 ° C. and relatively low, there is a problem that the solid amalgam particles are easily vaporized in a sealing or exhaust process.

  The mercury alloy method is applicable to a glass tube having a relatively large diameter because a metal ring in which mercury and a getter material are formed must be installed inside the glass tube. It is difficult to apply to a fluorescent lamp or a cold cathode tube for LCD backlight. In many cases, such a mercury injection method has a problem in the process of introducing mercury into the glass tube.

  Therefore, as a typical mercury injection method for improving the disadvantages of the above method, there is the following Patent Document 1 which was filed on April 29, 2004 and was filed on April 29, 2004.

  To briefly describe a method for manufacturing a fluorescent lamp using a mercury distributor, mercury is placed in a cup-shaped nickel or stainless steel container having a diameter of 1.0 mm to 4.0 mm and a length of 1.0 mm to 5.0 mm and closed at the bottom. -Using a mercury distributor for fluorescent lamps containing getter material, forming a contraction in the exhaust pipe to prevent the mercury distributor from entering the discharge tube, and heating the mercury distributor at high frequency after exhaust To be able to inject mercury.

In particular, in the method, the mercury distributor is not installed inside the glass tube, but is installed so as to be applied to the contracted portion formed on the section of the exhaust pipe, and then heated to such a state to inject mercury. Then, after the mercury is separated and injected, by cutting the shrinkage portion where the mercury distributor is located from the exhaust pipe, the work and process problems of the mercury capsule method, the amalgam method, and the mercury alloy method are eliminated. Can be solved.
Republic of Korea Open Patent 10-2004-0035060

  However, in the conventional fluorescent lamp manufacturing method, since the mercury injection operation is performed through the step of installing and removing the mercury distributor on the exhaust pipe side of the glass tube every time, such a process is performed in general fluorescent lamp manufacturing. When building a system to be linked with a series of processes such as evacuation and gas injection sealing work, not only the structure becomes complicated, but also excessive cost and time for manufacturing, maintenance, etc. There is a problem that it is required. In particular, since it is difficult to obtain satisfactory work efficiency and productivity by such a mercury injection process, there is a limit in mass production of lamps.

  Furthermore, the conventional fluorescent lamp manufacturing method has a structure limited only to the manufacture of a cold cathode fluorescent lamp in which an electrode is formed inside the glass tube due to the characteristics of the mercury injection process. For example, the electrodes are formed on both ends of the glass tube, the light emission quality is good, the weight is light, the volume can be greatly reduced, and the lamp life, power consumption, and assembly compatibility are excellent. There is a problem that it is difficult to apply to the production of fluorescent lamps with high added value like known external electrode fluorescent lamps, and it is impossible to expect satisfactory work compatibility and equipment efficiency. was there.

  The present invention was invented to solve the above-mentioned conventional problems, and the object of the present invention is not only to simplify the manufacturing process and structure of a fluorescent lamp having an external electrode. Another object of the present invention is to provide a fluorescent lamp manufacturing apparatus and method capable of mass-producing high-quality lamps.

  In order to achieve one object of the present invention as described above, it is possible to separate a chamber having a certain size processing space and a plurality of lamp manufacturing glass tubes corresponding to the processing space side of the chamber. Adjustable means for controlling the connection state between the cassette that can be mounted and the exhaust port, the gas supply port, and the mercury injection port so that gas and mercury can be injected by exhausting the inside of the processing space of the chamber. An apparatus for manufacturing a fluorescent lamp is provided.

  In order to realize the other object of the present invention, a sealed chamber atmosphere is formed by docking a plurality of glass tubes for manufacturing a lamp on the side of a chamber having a predetermined processing space for manufacturing a lamp. Removing the impurities inside the glass tube through the processing space, evacuating to a vacuum state, injecting a gas into the glass tube through the processing space, Provided is a fluorescent lamp manufacturing method including a step of injecting mercury into the glass tube through a processing space and a step of sealing the glass tube in a state where gas and mercury are injected into the tube.

  The fluorescent lamp manufacturing apparatus according to the present invention facilitates operations such as mercury injection as well as exhaust and gas injection and glass tube sealing for manufacturing the fluorescent lamp through the processing space of the chamber in which the internal atmosphere is changed by the adjusting means. Therefore, work efficiency, equipment efficiency, etc. can be greatly improved.

  In particular, a plurality of lamp manufacturing glass tubes are simultaneously stored on the cassette side, and in such a stored state, they are separably mounted on the chamber side, and a series of operations for lamp manufacturing are performed. The lamp can be mass-produced, and the storage and transportability of the glass tube can be greatly improved.

  Further, the adjustment means can change the atmosphere in the processing space of the chamber by an operation that moves along a predetermined section, and can easily change the atmosphere of the processing space. Can be greatly simplified.

  The fluorescent lamp manufacturing method according to the present invention includes a series of processes such as exhaust and gas injection and glass tube sealing for manufacturing the fluorescent lamp in the processing space inside the chamber, as well as mercury in conjunction with these processes. Since parallel processing of injection work is also possible, process efficiency, work efficiency, productivity, and the like can be greatly improved.

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

  1, 2, and 3, a fluorescent lamp manufacturing apparatus according to the present invention includes a chamber 2 having a processing space (C) in which exhaust and gas injection and mercury injection for lamp manufacture are possible, and the chamber. Corresponding to the processing space (C) side of the cassette 2, a cassette 4 on which a plurality of glass tubes for manufacturing a lamp (G) can be mounted in a separable manner, and the inside of the processing space (C) of the chamber 2 are evacuated. And adjusting means 6 installed so that gas and mercury can be converted into a state where injection is possible.

  The chamber 2 can be made of metal having excellent durability and corrosion resistance, chemical resistance, heat resistance, etc., and is configured in a box shape formed with steps as shown in FIG. Inside, a processing space (C) is formed as shown in FIG.

  A cover plate 10 such as a separate roof is detachably attached to the upper side surface of the chamber 2, and the processing space (C) can be opened or blocked by the cover plate 10.

  Between the cover plate 10 and the chamber 2, a well-known rubber ring 12 for sealing is installed as shown in FIG. 3, and sealing processing can be performed by other known methods.

  The chamber 2 is provided with a plurality of glass tubes for manufacturing lamps (G, hereinafter referred to as “glass tubes”) in a separable manner by a cassette 4 to be described later. In this state, the lamp can be easily manufactured. In order to be able to do so, it is installed in the posture as shown in the work table (W) as shown in FIG.

  On the chamber 2 side, although not shown, a well-known pressure control capable of adjusting the internal pressure so that the processing space (C) can be easily converted into a vacuum atmosphere or an atmospheric pressure atmosphere. Valves, vacuum pumps, and gas injection pumps are installed.

  The processing space (C) has a spatial structure corresponding to a plurality of glass tubes (G) fixedly mounted on the chamber 2 side by an arrangement of at least two rows, and the chamber 2 includes the processing space (C). ) It is configured to be able to perform operations such as exhaust and gas injection and mercury injection for lamp manufacturing.

  First, in order to exhaust and inject gas into the processing space (C), an exhaust pipe (L1) for exhaust and a gas pipe (L2) for gas injection as shown in FIGS. Are installed so as to communicate with the processing space (C).

  The exhaust pipe (L1) has a plurality of glass tubes (G) that are positioned corresponding to the processing space (C) of the chamber 2 by a cassette 4 described later in a state where the phosphor is formed and sintered. Although not shown in the figure, a separate vacuum pump is connected to the exhaust side of the exhaust pipe (L1). Thus, it is mounted so that the exhaust action is performed as described above.

  The gas pipe (L2) supplies a gas for light emission of a fluorescent lamp, such as argon gas, to the processing space (C) side of the chamber 2 so that the inside of the glass pipe (G). Although not shown in the figure, the end of the gas pipe (L2) on the inflow side is connected to a separate gas supply tank in which a certain amount of gas is stored. It is mounted so that such a gas supply is possible.

  Although not shown in the drawing, valves are installed on the exhaust pipe (L1) and gas pipe (L2) side, and the opening and closing of the flow path is controlled by a known method.

  Then, on the processing space (C) side, a cover plate 10 installed so as to be able to open the space (C) on the upper side of the chamber 2 is opened, and a certain amount directly on the adjusting means 6 side described later. Mounted so that mercury can be supplied.

  As the mercury injected into the glass tube (G), solid form mercury particles (M) having a certain size as shown in FIG. 3 are used. Such solid mercury particles (M) are converted into liquid. In comparison, since the evaporation heat can be further raised, it can be prevented from being lost due to the evaporation phenomenon due to heat inside the chamber 2.

  In the above description, the case where the mercury particles (M) are supplied to the processing space (C) using the cover plate 10 of the chamber 2 has been described as an example. However, the present invention is not limited to this. For example, although not shown in the figure, a separate supply pipe may be installed so that a fixed amount of mercury particles (M) can be uniformly supplied to the adjusting means 6 through the pipe. However, the mercury supply method that satisfies the object of the present invention can be implemented in various ways.

  Further, the chamber 2 is configured so that the opening side end of the glass tube (G) positioned corresponding to the processing space (C) side can be sealed with heat. For this purpose, a ceramic heating plate 26 as shown in FIG. 3 is attached to the lower surface of the chamber 2, and heating holes 28 corresponding to the plurality of glass tubes (G) are formed in the heating plate 26. A structure in which the heating wire 30 is built in between the holes 28 as shown in the drawing is also possible.

  The heating plate 26 is provided on the chamber 2 side so that a portion opened on the lower side of the chamber 2 can be completely sealed when a cassette 4 described later is detachably mounted as shown in FIG. It is installed in the state where it entered from the lower side.

  The chamber 2 prevents high heat from being conducted to the processing space (C) side when the heating plate 26 generates heat, and prevents the evaporation of mercury particles (M) in a low temperature atmosphere. Configured to be able to. Therefore, a guide hole 32 as shown in FIG. 3 is formed between the processing space (C) and the heating plate 26 so as to correspond to the heating hole 28 of the heating plate 26 as shown in FIG. A cooling plate 34 is installed, and a cooling pipe 36 as shown in the drawing is built in the cooling plate 34.

  The cooling plate 34 may be any one of a water-cooled type or an air-cooled type cooling structure in which cooling is performed while a cooling fluid circulates through the cooling pipe 36 by a known method.

  Referring to FIG. 3, a heat shield plate 38 having holes corresponding to the guide holes 32 of the heating plate 26 formed on the bottom surface side of the chamber 2, that is, the processing space (C) is formed as shown in the drawing. Furthermore, it can be installed. The heat shield plate 38 is made of a material having low thermal conductivity and can more effectively shield heat generated on the heating plate 26 side together with the cooling plate 34. Glass tube (G) not only to further improve the heat generation efficiency during operations such as sealing the glass tube (G), but also to maintain a low temperature atmosphere on the processing space (C) side. It is possible to prevent the solid mercury particles (M) to be injected into the G) side from being lost by being evaporated by heat.

  The cassette 4 is used for stacking and stacking a plurality of glass tubes (G) vertically and mounting them in a separable manner so that lamps can be manufactured corresponding to the processing space (C) side. Referring to FIG. 4, a holder 14 for storing glass tubes (G) one by one, and a ceiling plate for fixing the holder 14 to the processing space (C) side of the chamber 2 in a separable manner. And a docking plate 16.

  The holder 14 has a groove 18 into which the glass tube (G) is separably fitted in a state as shown in FIG. 5, and the upper end of the glass tube (G) is docked at the upper end of the glass tube (G). It is comprised so that it can fix in the state protruded with the plate 16 like FIG.

  The holder 14 is made of a metal having excellent durability and heat resistance so that the surface can be prevented from being damaged or deformed by physical contact after the glass tube (G) is fitted. be able to.

  The holder 14 may have a structure in which a cap 20 as shown in FIG. 5 is detachably coupled by screw coupling or the like so that the lower end of the groove 18 can be easily opened. Such a structure can provide further improved convenience when, for example, the groove 18 is cleaned, maintained or repaired.

  The holder 14 is maintained at one or more points by, for example, a binder 40 as shown in FIGS. 4 and 6 so as to prevent the posture from being changed after being attached to the docking plate 16 described later. Is mounted as possible.

  The docking plate 16 is for attaching the plurality of holders 14 in a separable atmosphere and posture capable of manufacturing a lamp corresponding to the processing space (C) side of the chamber 2. 14 are configured so as to be spaced apart in a fixed arrangement and penetrate through the posture as shown in FIG.

  The docking plate 16 is attached to the lower side of the chamber 2 so as to be separated by physical pressure. For this purpose, a fixture 22 as shown in FIG. 3 is installed on the lower side of the chamber 2, and the docking plate 16 can be separated on the chamber 2 side by applying pressure by rotation or linear motion of the fixture 22. The structure can be attached.

  The power transmission for the action of the fixing tool 22 is not shown in the figure, but for example, the fixing tool 22 receives such a power transmission from a driving source such as a cylinder or a motor and performs such an operation. It is possible to provide a structure that is actuated by pressure applied using the hands and feet of the operator by providing a lever or a pedal.

  The docking plate 16 is made of the same metal as that of the holder 14, and the upper surface of the docking plate 16 or the like corresponds to this so that the seal is maintained when it is attached to the chamber 2 side as shown in FIG. A rubber ring 24 for sealing is installed on the lower surface of the chamber 2 so that the sealing is maintained by a known method.

  That is, the cassette 4 can be mounted so that a plurality of glass tubes (G) can be simultaneously separated on the chamber 2 side, and depending on the mounting state of the cassette 4, the processing inside the chamber 2 can be performed. The space (C) is a sealed atmosphere in which the lamp can be manufactured.

  On the other hand, on the chamber 2 side, adjusting means 6 is installed so that the processing space (C) can be evacuated so that gas injection and mercury injection can be performed.

  As shown in FIG. 13, the adjusting means 6 has a plate-like form movable along a predetermined guide device on the bottom surface of the chamber 2, that is, the processing space (C), and when the adjusting means 6 moves, The working atmosphere is changed by allowing the upper opening of the glass tube (G) mounted on the chamber 2 side to be in a state of being physically cut off from or in communication with the processing space (C). It becomes possible.

  For this reason, the adjusting means 6 is a movable perforated plate shown in FIG. 13, and includes a first adjusting hole 42 for exhaust and gas injection corresponding to each glass tube (G), and mercury injection. The second adjustment holes 44 for forming a set of through-passage groups and corresponding to the plurality of glass tubes (G).

  When the glass tube (G) is sealed, the first and second adjustments are performed so that the processing space (C) and the opening side of the glass tube (G) are blocked from each other. The guide hole 32 of the cooling plate 34 is directly blocked at a point adjacent to the holes 42 and 44 so that the blocked state can be maintained.

  As shown in FIG. 13, a connecting rod 46 is connected to the adjusting means 6 so as to protrude outside the chamber 2 as shown in the drawing. For example, the protruding end of the connecting rod 46 is connected to a cylinder or a motor. It is connected to such a separate drive source, and is mounted so as to be able to reciprocate along a section determined within the processing space (C).

  The second adjustment holes 44 are arranged on the discharge side as shown in FIG. 3 so that a plurality of solid mercury particles (M) can be introduced into the corresponding glass tubes (G) one by one. It has a structure inclined toward.

  The power transmission structure for adjusting the position of the adjusting means 6 is not limited to such a structure using a drive source, for example, a lever, a handle or the like so that the position can be adjusted using the operator's hand. Can also be installed.

  The adjusting means 6 of the structure is along a section determined so that operations such as exhaust and gas injection, mercury injection, and sealing for manufacturing a lamp can be performed in the processing space (C) of the chamber 2. While moving, the atmosphere of the processing space (C) can be easily changed. In particular, such a structure is not limited to exhaust and gas injection in the chamber 2, that is, a single processing space (C). The injection operation can be easily performed in parallel.

  The fluorescent lamp manufacturing apparatus according to the present invention further includes a heating means 8 as shown in FIG.

  The heating means 8 not only promotes the exhausting action inside the glass tube (G) by the heat generation action, but also more smoothly, for example, during the evaporation process of mercury particles (M) performed after the glass tube (G) is sealed. For this purpose, as shown in FIG. 1, a wall-like movement is installed so as to be movable toward the cassette 4 installed on the chamber 2 side on the work table (W). For example, the plate 48 may have a structure in which, for example, a plurality of Bone-shaped heat generating members 50 are installed.

  At this time, the heat generating members 50 are arranged on the moving plate 48 so as to be able to generate heat between the holders 14 as shown in FIG.

  As shown in FIG. 1, the moving plate 48 is installed on the screw 52 side that can convert the power of a drive source (D) such as a motor into a linear motion, and follows the screw portion when the screw 52 rotates. It is a structure that moves by a well-known method.

  Next, a preferred method for manufacturing a fluorescent lamp using the fluorescent lamp manufacturing apparatus according to the present invention having the above structure will be described in detail.

  FIG. 7 is an overall process diagram for manufacturing a fluorescent lamp according to the present invention. For lamp manufacturing, a plurality of lamp manufacturing glass tubes are docked on the side of a chamber having a predetermined processing space. Forming a sealed chamber atmosphere (S1); removing impurities inside the glass tube through the processing space of the chamber; and evacuating the chamber to a vacuum state (S2); and processing the chamber A step of injecting gas into the glass tube through the space (S3), a step of injecting mercury into the glass tube through the processing space of the chamber (S4), and a state in which the gas and mercury are injected into the tube. Sealing the glass tube (S5).

  In the step (S1) of forming the chamber atmosphere, first, the glass tube (G) is inserted and stored in the holder 14 side of the cassette 4, and then the docking plate 16 for fixing the holder 14 is set as shown in FIG. It only has to be mounted on the chamber 2 side in the direction.

  At this time, the glass tube (G) housed on the holder 14 side is formed with a phosphor (P) inside the tube by a known method as shown in FIG. It is heated in the range of 1200 ° C. and is stored in the direction shown in the drawing in a state where only one side end is sealed, and the open side end protrudes a certain part on the docking plate 16 side as shown in FIG. The heating plate 26 is mounted inside the heating hole 28.

  The second adjusting hole 44 of the adjusting means 6 located inside the processing space (C) of the chamber 2 is in a state where a certain amount of solid mercury particles (M) are contained as shown in FIG.

  When such step (S1) is completed, the foreign matter and residual gas in the glass tube (G) are removed through the processing space (C) of the chamber 2, and an evacuation step (S2) so as to obtain a vacuum atmosphere. I do.

  At this time, the guide means 6 has the first adjustment hole 42 in the glass tube (G) through the processing space (C) of the chamber 2 so that the inside of the glass tube (G) can be evacuated. In this state, the exhaust action is performed by the vacuum pump connected to the exhaust pipe (L1).

  In such exhaust operation, the heating means 8 installed on the work table (W) side is arranged so that the plurality of heat generating members 50 are positioned between the holders 14 as shown in FIG. After moving to the cassette 4 region along the line 52, heat is generated in the range of approximately 300 ° C. to 350 ° C., so that a smoother exhausting action is performed inside the glass tube (G) by such a heat generating action.

  When the exhaust operation is completed, the exhaust pipe (L1) is blocked by a valve, the inside of the glass tube (G) and the inside of the processing space (C) are in a vacuum atmosphere, and the heating means 8 is connected to the work table ( Return to the original position again in W).

  After such an exhaust process, a step (S3) of injecting a gas into the glass tube (G) is performed. In this step (S3), the first adjustment hole 42 of the adjustment means 6 is positioned as shown in FIG. 11 in the chamber 2, that is, the processing space (C), in the same manner as in the exhaust step (S2). Done in

  That is, in such a chamber 2 atmosphere, argon gas is supplied from an external gas storage tank through the gas pipe (L2), and the glass tube is passed through the processing space (C) and the first adjustment hole 42. (G) A certain amount is injected into the inside, and when such gas injection is completed, the gas pipe (L2) is shut off again by the valve.

  In the mercury injection step (S4), the adjusting means 6 installed in the chamber 2 causes the second adjusting hole 44 to correspond to the opening side end of the glass tube (G) as shown in FIG. If attached, the mercury particles (M) that have entered the second adjustment hole 44 side fall into the discharge side and are introduced into the glass tube (G). In particular, the method of injecting mercury into the chamber 2 by the simple operation using the adjusting means 6 can fundamentally solve the problems of the conventional mercury injection method. The efficiency of the process can be greatly improved.

  If the gas and mercury injection are completed inside the glass tube (G) by such a process, a step (S5) of sealing the opening side end of the glass tube (G) is performed. This step (S5) is performed in a state where the inside of the glass tube (G) and the processing space (C) of the chamber 2 are blocked from each other by the adjusting means 6 as shown in FIG.

  That is, in this state, if electricity is applied to the heating wire 30 of the heating plate 26 installed in the lower part of the chamber 2 to heat to a normal sealing temperature within a range of about 1000 ° C. to 1200 ° C. The open side end of the glass tube (G) is sealed with gas and mercury particles (M) inside.

  At this time, even if high heat is generated on the heating plate 26 side, the cooling plate 34 and the heat shield plate 38 are respectively installed with the processing space (C) interposed therebetween as shown in FIG. Since heat can be fundamentally blocked not only in the processing space (C) but also in the adjusting means 6 installed in this space (C), the inside of the processing space (C) is always kept at a constant low temperature ( It is possible to prevent the remaining mercury particles (M) entering the second adjustment hole 44 side of the adjusting means 6 from being evaporated and lost by heat.

  Then, the opening side of the glass tube (G) is sealed by such a process, and the heating means 8 is operated so as to be positioned again between the holders 14 of the cassette 4 as shown in FIG. In such a state, the heat generating member 50 is heated so that the solid mercury particles (M) charged in the glass tube (G) are uniformly evaporated inside the tube.

  When the mercury particles (M) are evaporated by the heating action of the heating means 8, the internal pressure is adjusted by a pressure control valve or the like so that the processing space 2 of the chamber 2 is changed from a vacuum state to an atmospheric pressure state. Thereafter, the cassette 4 may be separated from the chamber 2 side.

  And although not shown in figure, an external electrode, ie, a metal cap, should just be attached to the both ends of the glass tube (G) which passed through such a process by a well-known method.

  Therefore, according to such a process, a series of processes for manufacturing a fluorescent lamp can be easily performed in a single processing space (C) formed in the chamber 2.

  The exhaust process (S2), the gas injection process (S3), the mercury injection process (S4), and the sealing process (S5) have a structure in which the operation is controlled by an operator's manual operation, For example, various control devices composed of sensors, timers, and the like may be installed to provide a structure that enables automatic control by a known method.

  Although the preferred embodiments of the fluorescent lamp manufacturing apparatus and method according to the present invention have been described above, the present invention is not limited thereto, and is within the scope of the claims, the detailed description of the invention and the attached drawings. Various modifications can be made and this is also within the scope of the present invention.

1 is a partially exploded perspective view of a fluorescent lamp manufacturing apparatus according to the present invention. FIG. 2 is a cross-sectional view of FIG. It is an expanded sectional view for demonstrating the internal structure of the chamber of FIG. It is a whole perspective view for demonstrating the cassette structure of FIG. It is sectional drawing for demonstrating the internal structure of the holder of FIG. FIG. 5 is a partially enlarged perspective view for explaining a structure for maintaining the spacing and posture of the holder in FIG. 4. It is a whole process figure for demonstrating the fluorescent lamp manufacturing method by this invention. It is sectional drawing of the manufacturing apparatus for demonstrating the installation process of the glass tube of FIG. FIG. 8 is a cross-sectional view and an enlarged cross-sectional view for explaining the exhaust process of FIG. 7. FIG. 8 is a cross-sectional view and an enlarged cross-sectional view for explaining the exhaust process of FIG. 7. It is an expanded sectional view for demonstrating the gas injection | pouring process of FIG. It is an expanded sectional view for demonstrating the mercury injection | pouring process of FIG. It is an expanded sectional view for demonstrating the sealing process of FIG.

Explanation of symbols

2 Chamber 4 Cassette 6 Adjusting means 8 Heating means 10 Cover plate 12 Rubber ring 14 Holder 16 Docking plate 18 Groove 20 Cap 22 Fixing tool 26 Heating plate 28 Heating hole 30 Heating wire 32 Guide hole 34 Cooling plate 36 Cooling tube 38 Heat shut-off plate 40 Binder 42 First adjustment hole 44 Second adjustment hole 46 Connecting rod 48 Moving plate 50 Heating member 52 Screw

Claims (11)

  A chamber having a processing space of a certain size, a cassette capable of detachably mounting a plurality of glass tubes for manufacturing lamps corresponding to the processing space side of the chamber, and exhausting the inside of the processing space of the chamber And an adjusting means for controlling a connection state of the exhaust port, the gas supply port, and the mercury inlet so that gas and mercury can be injected.   The adjusting means is positioned so as to be movable in a posture that blocks between a processing space of the chamber and a glass tube group for manufacturing a lamp that is mounted in correspondence with the processing space, and the processing space and each glass The fluorescent lamp manufacturing apparatus according to claim 1, wherein the passage group is formed so as to be penetrated so that the inside of the tube can be switched to a state in which the inside of the tube is communicated or blocked. The cassette includes a plurality of holders for storing lamp manufacturing glass tubes, and a docking plate for detachably attaching the holders corresponding to the processing space side of the chamber,
The fluorescent lamp manufacturing according to claim 1, wherein at least two or more glass tubes for manufacturing a lamp are mounted by the holder so as to be separable into an atmosphere and posture capable of manufacturing the lamp corresponding to the processing space side of the chamber. apparatus.   The fluorescent lamp manufacturing apparatus according to claim 1, wherein the chamber is formed with a cooling unit having a water-cooled or air-cooled cooling pipe so that the inside of the processing space can be maintained in a low-temperature atmosphere.   2. The fluorescent lamp manufacturing apparatus according to claim 1, wherein the chamber is formed with a heat blocking portion having a blocking plate capable of maintaining the inside of the processing space in an atmosphere capable of blocking heat. The manufacturing apparatus further includes heating means for exhausting the inside of the lamp manufacturing glass tube,
The heating means includes a plurality of heat generating members that perform heat generation while being in a state where heat conduction is possible, corresponding to a plurality of glass tubes for manufacturing a lamp that are separably attached to the chamber side. The fluorescent lamp manufacturing apparatus according to claim 1.   A plurality of the heat generating members are separated from each other in a posture capable of conducting heat between a plurality of glass tubes for lamp manufacture attached to the chamber side, corresponding to a length direction or a lower end portion of the tube. The fluorescent lamp manufacturing apparatus according to claim 6, wherein the fluorescent lamp manufacturing apparatus is arranged as follows.   In order to manufacture a lamp, a step of docking a plurality of glass tubes for lamp manufacture on the side of a chamber having a processing space of a certain size to form a sealed chamber atmosphere, and the inside of the glass tube through the processing space Removing impurities and evacuating to a vacuum state; injecting gas into the glass tube through the processing space; injecting mercury into the glass tube through the processing space; And a step of sealing the glass tube in a state where gas and mercury are injected into the fluorescent lamp.   The step of forming the chamber atmosphere is characterized in that at least two or more glass tubes for manufacturing a lamp are mounted so as to correspond to the processing space so that the interiors thereof can communicate with each other or be cut off. Item 9. A fluorescent lamp manufacturing method according to Item 8.   The mercury injecting step is a state in which a certain amount of solid mercury particles are contained inside the processing space, and when the processing space and the inside of the glass tube for manufacturing a lamp are switched from a state where they are cut off to each other, The fluorescent lamp manufacturing method according to claim 8, wherein the fluorescent lamp is injected while dropping into the glass tube.   9. The method of manufacturing a fluorescent lamp according to claim 8, wherein the glass tube sealing step is performed in a sealed state in which the interior of the lamp manufacturing glass tube is isolated from the processing space of the chamber.

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