KR100918578B1 - bulb transfer and rotation apparatus of Cold Cathode Fluorescent Lamp manufacturing apparatus for baking - Google Patents

Abstract

Conventional baking machines have a complicated structure, a large number of parts, a long time required for the transport and rotation of the quartz tube, and a glass tube in the quartz tube may be damaged due to an impact on the quartz tube during the transport and rotation of the glass tube.

The present invention is a frame having a two-layered square frame shape by a plurality of beams arranged in a vertical and horizontal and the upper plate having an opening is provided in the upper layer as a path for the movement of the quartz tube and the lower plate is attached to the lower layer and A plurality of fixed shafts, which are rotated by a power source, are coupled to the ends of the plurality of supporting brackets, coupled to a plurality of transport sprockets at both ends of the plurality of fixed shafts, and two glass tube transport chains fastened to the transport sprockets. It is arranged as a closed loop leading to the upper space, the opening and the space between the upper plate and the lower plate, and the power source is provided at both ends of the glass tube conveying means fitted with quartz tubes in the holders of the two glass tube conveying chains and the support panels fixed to the plurality of supports. By a fixed shaft with a rotating sprocket and fastening a pair of guide rails and guides to one side of the support panel. The two guides are coupled to each other so as to be movable up and down, and an integral power transmission sprocket and a roller are rotatably coupled by the guide rod between the two guides, and a rotation chain fastened to the rotation sprocket opens the power transmission sprocket. It surrounds a glass tube conveying and rotating device with a glass tube rotating means formed on top of a cam which is formed by a power rod with a working rod located at the lower part of the guide while enclosing a closed loop, which can accommodate a glass tube for baking. Simplification of the conveying and rotating device for conveying and rotating the tube, ie, the glass tube, can reduce the number of parts of the conveying and rotating apparatus, greatly shorten the conveying and rotating time of the glass tube, and reduce the impact on the glass tube.

Cold Cathode Fluorescent Lamp, Baking, Glass Tube, Quartz Tube, Transfer, Rotation.

Description

Bulb transfer and rotation apparatus of Cold Cathode Fluorescent Lamp manufacturing apparatus for baking}

The present invention relates to a glass tube feeding and rotating apparatus of a cold cathode fluorescent lamp manufacturing apparatus for baking. In particular, the present invention heats the glass tube by incineration of the organic matter contained in the phosphor applied to the inside of the glass tube while rotating and at the same time rotating the glass tube with a simple structure of the transport and rotation device during manufacturing cold cathode fluorescent lamp The present invention relates to a glass tube feeding and rotating apparatus of a cold cathode fluorescent lamp manufacturing apparatus for baking that can be applied evenly.

A common cold cathode fluorescent lamp is coated with a protective film and a phosphor added with a small amount of alumina on the inner surface of the glass tube, and electrodes are installed at both ends of the baked glass tube to be sealed through a vacuum evacuation process, and mercury, argon, neon, etc. It has a structure filled with a mixed gas. In the cold cathode fluorescent lamp, when a high voltage is applied to the electrode, electrons are emitted from the electrode to excite mercury, and ultraviolet rays are emitted. The emitted ultraviolet rays are converted into visible light by the phosphor and irradiated with heat. It is not self-emitted but emits heat by an electric field and does not require heat.

Conventional cold cathode fluorescent lamp manufacturing apparatus for manufacturing a cold cathode fluorescent lamp as described above is composed of an applicator, a neck cleaner, a baking machine, an electrode sealing machine, an exhaust machine, a sealing cutting machine, a heating machine and an aging machine.

1 and 2 show a conventional baking machine for incineration of organic matter contained in the phosphor applied inside the glass tube, which is unloaded with the loader 110 at the front and rear diagonals of the baking machine body 100. Ding machine 120 is installed, the hot air supply unit 140 is installed on the side, and the upper portion of the baking machine main body 100 has a basic structure in which the vertical heater unit 150 is installed in the longitudinal direction. Between the vertical heater portion longitudinal direction is a rotating and conveying device for rotating and conveying the quartz tube containing the glass tube for baking is disposed.

That is, the conventional baking machine transfers the quartz tube while the quartz tube return unit driven by three indexes, the quartz tube lowering unit, the quartz tube rising unit, and the cam connected to the main motor carry out a reciprocal movement for a certain period. Since the structure of the baking machine including the feeding and rotating device of the glass tube becomes complicated, the number of parts increases and the time for the feeding and rotating of the quartz tube becomes long. In addition, since the conventional baking machine repeatedly lifts and lowers the glass tube in the process of transporting and rotating the glass tube, there is a high possibility that the glass tube is damaged due to an impact on the glass tube.

The present invention for overcoming the limitations of the conventional baking machine as described above simplifies the structure of the glass tube conveying and rotating apparatus for conveying and rotating the glass tube, thereby reducing the number of parts of the conveying and rotating apparatus and shortening the conveying and rotating time of the glass tube. The purpose is to make it possible.

In addition, the present invention has a purpose to reduce the impact on the quartz tube to a minimum by eliminating the process of lifting the quartz tube in the process of transporting and rotating the quartz tube for baking the glass tube, unlike the conventional method.

Glass tube conveying and rotating apparatus of the cold cathode fluorescent lamp manufacturing apparatus for baking according to the present invention for achieving the above object is made of a square frame shape of a two-layer structure by a plurality of beams arranged in a horizontal and vertical and quartz on the upper layer A frame having an upper plate having an opening provided as a path for moving the tube and a lower plate attached to the lower layer; A plurality of fixed shafts that are rotated by a power source are coupled to the ends of the plurality of support brackets, and coupled to a plurality of transport sprockets at both ends of the plurality of fixed shafts, and two glass tube transport chains fastened to the transport sprockets. Glass tube conveying means arranged in one closed loop leading to an upper space of the upper plate and the opening and a space between the upper plate and the lower plate, wherein a quartz tube is inserted into a holder of the two glass tube conveying chains; And a fixed shaft having a sprocket for rotation and rotating by a power source at both ends of the support panel fixed to the plurality of supports, and having two guides up and down via a pair of guide rails and guides on one surface of the support panel. It is coupled so as to be movable, an integral power transmission sprocket and a roller are rotatably coupled by a guide rod between the two guides, and a rotation chain fastened to the rotation sprocket surrounds the power transmission sprocket. It is formed as a closed loop, the operating rod located in the lower portion of the guide glass tube rotating means disposed on the upper portion of the cam rotates by a power source; characterized in that it comprises a.

The rotating chain of the glass tube rotating means moved up and down by the cam has a lower end portion in contact with the upper surface of the guide and the cam so that the moving rod, the power transmission sprocket, and the roller can move up and down. It may be configured to be longer than the distance between the sprocket for rotation of the fixed shaft of both ends.

Therefore, according to the present invention, the present invention simplifies the quartz tube that can accommodate the glass tube for baking, that is, the conveying and rotating device for conveying and rotating the glass tube, thereby reducing the number of parts of the conveying and rotating device, and conveying and rotating the glass tube. There is an effect that can greatly reduce the time.

In addition, the present invention has the effect of reducing the impact on the quartz tube to a minimum by eliminating the process of lifting the quartz tube in the process of transporting and rotating the quartz tube for baking the glass tube, unlike the conventional method.

The glass tube conveying and rotating apparatus of the cold cathode fluorescent lamp manufacturing apparatus for baking according to the present invention, as shown in Figure 3, the frame 10 of the rectangular frame shape constitutes a skeleton supporting the glass tube conveying and rotating apparatus, this frame 10 is composed of a plurality of beams arranged in two layers horizontally and horizontally, and a plurality of vertical beams for spaced apart vertically spaced beams arranged in two layers. The frame 10 may have separate legs at the bottom for adjusting the height or leveling the frame 10.

Particularly, the frame 10 of the rectangular frame shape may have beams arranged only on the outer side, and when a plurality of beams are arranged between the beams and the beams, the frame 10 may have sufficient strength to support the glass tube feeding and rotating device. have.

Some or all of each layer of the two-layer frame 10 is laid with an upper plate 11 and a lower plate 12, such as a steel sheet, which are used to transport glass tubes housed in a plurality of quartz tubes 13. This is to secure a space for arranging the glass tube conveying means and the glass tube rotating means for rotating the glass tube.

An opening 14 is provided in front and rear of the upper plate 11 to provide a movement path of the quartz tube 13 for transferring the glass tube, which is transferred by the glass tube conveying means. This is because the space between the upper space of the upper plate 11 and the upper plate 11 and the lower plate 12 is continuously moved.

In addition, although not shown in the drawings, a heat source for heating the glass tube accommodated in the quartz tube 13 is disposed above and below the quartz tube 13 for transporting the glass tube.

On the upper part of the upper plate 11, as shown in Figure 4, the sprockets 15a, 15b, 15c and 15d for joining with the chain for conveying the glass tube are left and right with the opening 14 in the center. It is arranged symmetrically, the rotating sprocket for coupling with the chain for rotating the glass tube is also arranged symmetrically from side to side with the opening 14 in the center. Particularly, at one corner of the lower plate 12, a power source 17a such as a motor for transmitting power to the sprockets 15a, 15b, 15c, and 15d for transfer is installed as shown in FIGS. The power source 17a is connected to the transfer sprockets 15a, 15b, 15c and 15d via the index 18.

The index 18 selectively transmits the power of the power source 17a with a time difference to the transfer sprockets 15a, 15b, 15c, and 15d. Therefore, while the power of the power source 17a is transmitted to the transfer sprockets 15a, 15b, 15c, and 15d via the index 18, the glass tube conveying means receives the power of the power source 17a for a certain distance. And the glass tube rotating means rotates the glass tube while receiving power from another power source (not shown) while the power of the power source 17a is not transmitted to the transfer sprockets 15a, 15b, 15c and 15d. You can.

6 shows a lower structure of the glass tube conveying and rotating device for supporting the glass tube conveying means and the glass tube rotating means. As described above, the frame 10 having a two-layer structure by a plurality of beams has a glass tube conveying means and a glass tube rotating means. It has an upper plate 11 and a lower plate 12 that can be installed, and an opening 14 for providing a space for the movement of the quartz tube is formed in the central portion of the upper plate 11. In addition, a heat source 19 for heating the glass tube transported in the state accommodated in the quartz tube is disposed above the frame 10, ie, above and below the quartz tube by supporting means, not shown.

7 and 8 show the glass tube conveying and rotating apparatus according to the present invention, the two glass tube conveying chains 20 arranged at regular intervals have eight conveying sprockets 15a and 15b for power transmission. 15c) and 15d, respectively, four transport sprockets 15a and 15b are fixed shafts 21a coupled to support brackets 22a and 22b located at the front and rear of the upper plate 11, respectively. It is coupled to both ends of the (21b), the two transport sprockets (15c) are coupled to both ends of the fixed shaft (21c) coupled to the support bracket (22c) installed upside down in front of the lower plate (11) , Two transfer sprockets 15d are coupled to both ends of the fixed shaft 21d coupled to the support bracket 22d positioned at the rear of the lower plate 12.

The power source 17a for transmitting power to the glass tube conveying chain 20 minimizes the sagging of the glass tube conveying chain 20 located at a portion where baking of the glass tube is made, and the glass tube conveying chain 20 with minimal power. It is connected to the transfer sprocket 15b located at the rear of the lower plate 12 so as to rotate while pulling.

Therefore, the glass tube conveying chain 20 selectively supplied with the power of the power source 17a through the index 18 is formed between the upper space of the upper plate 11 and the opening 14, the upper plate 11 and the lower plate 12. By repeatedly moving the movement path leading to the space of the opening, the opening 14 and the upper space of the upper plate 11 to transfer the quartz tube in which the glass tube is accommodated together with the glass tube conveying chain 20 at regular intervals. Can be.

Figure 9 shows a glass tube conveying means including a glass tube conveying chain 20, the upper space and the opening of the upper plate, the space between the upper and lower plates, the opening and the one arranged in the movement path leading to the upper space of the upper plate again The two glass tube conveying chains 20 forming the loops of the eight conveying sprockets 15a, 15b and 15c located at both ends of the four fixed shafts 21a, 21b, 21c and 21d are formed. Each bound to 15d).

Four conveying sprockets 15a and 15b for moving the glass tube conveying chain 20 are four supporting brackets 22a, 22b and 22c fixed to the upper plate 11 and the lower plate 12 ( It is fixed by 22d), and the sprocket 15e for connection with the power source 17a is couple | bonded with the edge part of the said fixed shaft 21b.

Pulleys 25a and 25b are respectively coupled to the output shaft of the power source 17a located on the lower plate and the rotary shaft corresponding to the input terminal of the index 18, and the two pulleys 25a and 25b are connected to the V belt 24. The sprocket 15f is coupled to the other rotation shaft of the index 18, and the sprocket 15f and the fixed shaft 21b of the index 18 are connected by a connecting means for power transmission. The sprocket 15e is connected by a chain 23, which is one connecting means for power transmission.

The two glass tube conveying chains 20 have holders 26 for fixing the quartz tube 13 which can accommodate the glass tube as shown in Figs. The holder 26 is independently coupled to the node of the glass tube transfer chain 20 and moves while forming a loop like the glass tube transfer chain 20. Of course, since each holder 26 forms a closed loop to hold the quartz tube 13, the quartz tube 13 is held by the holder 26 while the holder 26 is moved together with the glass tube transporting chain 20. Does not depart from

The quartz tube 13 coupled to the holder 26 of the two glass tube transfer chains 20 has a pipe shape for accommodating the glass tube for baking, and the holder 26 is rotatable by the glass tube rotating means. It has a coupling structure.

13 to 15 show the glass tube rotating means for rotating the glass tube accommodated therein and the quartz tube 13 being transported through the glass tube conveying chain 20. The glass tube rotating means includes a quartz tube (for 13) and configured to rotate the glass tube housed therein.

The plate-shaped support panel 28 for preventing the deflection of the glass tube conveying chain 20 and the lifting and lowering of the glass tube rotating chain 29 by coupling with the glass tube rotating chain 29 is provided on the upper plate 11. It is coupled to the upper portion of the plurality of supporters 27 arranged in the outer direction of the two glass tube transport chain 20 along the moving direction of the glass tube transport chain 20.

Fixed shafts 30a and 30b for fixing the sprockets 16a and 16b for rotation are coupled to both ends of the support panel 28 at right angles to the longitudinal direction of the support panel 28, and for rotating the glass tube. Rotating sprockets 16a and 16b for transmitting power to the chain 29 are coupled to both ends of the fixed shafts 30a and 30b, and the pulley 31a and the upper plate coupled to the fixed shaft 30b. Since the pulley 31b of the power source 17b fixed to 11 is connected by a power transmission means such as the V belt 32 or the like, the power of the power source 17b is controlled by the two pulleys 31a and 31b and the V belt ( 32), the fixed shaft 30a (30b) and the rotating sprocket (16a, 16b) is transmitted to the glass tube rotating chain 29 to rotate the glass tube accommodated in the quartz tube (13).

The glass tube rotation chain 29 is a chain constituting a closed loop and is coupled to a plurality of power transmission sprockets 33 together with the rotation sprockets 16a and 16b to be integrated with the power transmission sprocket 33. By transmitting power to the roller 34 is configured to rotate the quartz tube 13 and the glass tube accommodated therein.

The sprocket 33 and the roller 34 for power transmission are spaced between the two guides 36a and 36b in the shape of a plate while being fitted to the guide rod 35 as shown in FIGS. 16 to 19. It is installed horizontally. The guide rods 35 are positioned at the top of the two guides 36a and 36b at right angles to the longitudinal direction of the two guides 36a and 36b. The distance between the rollers 34 is preferably equal to the distance between the quartz tube 13 fitted in the holder 26 of the glass tube transport chain 20.

Of course, the two guides 36a and 36b are fastened to maintain a predetermined distance by separate fastening means such as bolts and nuts. It has a plurality of actuating rods 38 for moving the guides 36a, 36b and the like up and down.

The actuating rod 38 repeatedly moves up and down the power transmission sprocket 33 including the two guides 36a and 36b and the roller 34 according to the rotation of the cam 37 to move the roller 34. ) And the quartz tube 13 may have various shapes for contact with the rotating cam 37 as a component for contacting each other at a time interval, in particular in contact with the cam 37 to reduce frictional resistance. The surface may be constituted by a roller or the like.

In addition, the guide rail 39 is attached to one surface of the support panel 28 in the vertical direction long, the guide 40 which can move up and down on the guide rail 39 is attached to the outer surface of the guide (36a) Therefore, as shown above, the sprocket 33 and the roller 34 for power transmission including two guides 36a and 36b are interlocked with the cam 37 via the guide rail 39 and the guide 40. Can move up and down stably.

In addition, even though both ends of the glass tube rotating chain 29 are rotatably coupled to the rotating sprockets 16a and 16b fixed to both ends of the support panel 28, two guides 36a and 36b are provided. The power transmission sprocket 33 and the roller 34 and the glass tube rotating chain 29 is not exactly fitted to the two rotating sprockets 16a and 16b as shown in FIG. It should be a bit long. That is, as the cam 37 rotates, the two guides 36a and 36b including the actuating rod 38, the power transmission sprocket 33, the roller 34, and the like are connected to the glass tube rotation chain 29. The length of the glass tube rotating chain 29 should be adjusted to be able to move up and down without being disturbed.

The plurality of cams 37 are respectively coupled to both ends of the power transmission shaft 41, the plurality of power transmission shaft 41 is a plurality of brackets 43 fixed at regular intervals on the top plate (11) It is rotatably coupled to), one end of the plurality of power transmission shaft 41 is coupled to the gear 42 for power transmission.

The gears 42 at the ends of the plurality of power transmission shafts 41 are provided on the power transmission shafts 46 installed along the arrangement direction of the plurality of power transmission shafts 41 by the plurality of brackets 45 on the upper plate 11. ) And gears 47 engaged with each other, a pulley 48 fixed to the power transmission shaft 46 and a pulley 44 of the power source 17c fixed on the top plate 11 are V-belt 49 Power of the power source 17c is connected to the pulleys 44 and 48, the V belt 49, the power transmission shaft 46, the gear 47, the gear 42 and the power transmission shaft The cam 37 may be transmitted to the cam 37 to rotate the cam 37.

Hereinafter, the quartz tube 13 is rotated to evenly heat the glass tube accommodated in the quartz tube 13 while the quartz tube 13 is inserted into the holder 26 of the glass tube transfer chain 20. 20 and 21 will be described.

First, when a cam (a large radius portion) receiving power from a power source pushes up the working rod to raise the guides 36a and 36b including the working rod, the sprocket 33 for the power transmission, the roller 34, and the like. As shown in the first drawing of FIG. 21, the upper end of the roller 34 touches the lower end of the quartz tube 13 accommodated in the holder 26. At this time, the power transmission sprocket 33 and the roller 34, which receive the power of the power source through the glass tube rotation chain 20, are rotated about the guide rod 35, so that the quartz tube 13 is accommodated therein. The glass tube will also rotate.

When the force applied to the actuation rod is removed by the continuous rotation of the cam (a small radius of the cam portion), the guides 36a and 36b including the actuation rod, the power transmission sprocket 33, the roller 34, and the like are lowered. 21, the upper end of the roller 34 is separated from the quartz tube 13 accommodated in the holder 26 as shown in the second drawing of FIG.

Thereafter, the operation of the glass tube conveying chain 20 continues to convey the quartz tube 13 accommodated in the holder 26 of the glass tube conveying chain 20 as shown in FIG. 21.

As described above, when the rotating cam pushes up the actuation rod again, as shown in the fourth drawing of FIG. 21, the guide 36a and 36b including the actuation rod, the sprocket 33 for power transmission, and the roller 34 are shown. And the like, and then the operations described in the first, second, and third drawings of FIG. 21 are continuously performed.

Here, the feeding speed of the glass tube accommodated in the quartz tube, the time for the rotation of the glass tube, the temperature of the heat source, etc. may be adjusted according to the amount of organic matter contained in the phosphor to be incinerated and removed inside the glass tube.

The glass tube fitted to the other quartz tube 13 may be introduced or taken out automatically or manually by a conventional input and take-out apparatus before and after the baking process is performed with the transfer and rotation of the glass tube as described above. Since this is similar to the prior art, a detailed description thereof will be omitted.

1 and 2 is a schematic view showing a glass tube conveying and rotating apparatus of a conventional cold cathode fluorescent lamp manufacturing apparatus for baking.

Figure 3 is a perspective view showing a glass tube conveying and rotating apparatus of the cold cathode fluorescent lamp manufacturing apparatus for baking according to the present invention.

Figure 4 is a plan view showing a lower structure of the glass tube conveying and rotating apparatus shown in FIG.

FIG. 5 is an enlarged plan view of the main part of the glass tube conveying and rotating device disclosed in FIG. 4; FIG.

FIG. 6 is an exploded perspective view showing a lower structure of the glass tube conveying and rotating device disclosed in FIG.

FIG. 7 is a side view of the glass tube feeding and rotating device disclosed in FIG.

8 is a rear view of the glass tube feeding and rotating device disclosed in FIG.

9 is an exploded perspective view showing a glass tube conveying means for conveying a glass tube.

10 is a plan view showing a coupling structure of a quartz tube and a chain for transporting a glass tube.

11 is a front view showing a coupling structure of a quartz tube and a chain for transporting a glass tube.

12 is a side view showing a coupling structure of a quartz tube and a chain for transporting a glass tube.

13 is a plan view showing a glass tube rotating means for rotating the glass tube.

14 is a side view showing the glass tube rotating means for rotating the glass tube.

15 is an exploded perspective view showing the glass tube rotating means for rotating the glass tube.

Fig. 16 is a perspective view showing a main part of the glass tube rotating means of Figs. 13 to 15;

FIG. 17 is a plan view showing a main part of the glass tube rotating means of FIGS. 13 to 15;

Fig. 18 is a side view showing the main part of the glass tube rotating means of Figs. 13 to 15;

Fig. 19 is a front view showing the main part of the glass tube rotating means of Figs. 13 to 15;

20 and 21 are views showing a process of rotating the quartz tube containing the glass tube by the glass tube rotating means.

-Explanation of symbols for the main parts of the drawings

10 frame 11: top plate

12: lower plate 13: quartz tube

14: opening 23: chain

15a, 15b, 15c, 15d, 15e, 15f: Sprockets for transfer

16a, 16b: rotating sprockets 17a, 17b, 17c: power source

18: Index 19: heat source

20: glass tube conveying chain 21a, 21b, 21c, 21d, 30a, 30b: fixed shaft

22a, 22b, 22c, 22d: support bracket

24, 32, 49: V belt 25a, 25b, 31a, 31b, 44, 48: pulley

26 holder 27 support

28: support panel 29: glass tube rotation chain

33: sprocket for power transmission 34: roller

35: guide rod 36a, 36b, 40: guide

37: cam 38: operating rod

39: guide rail 41, 46: shaft for power transmission

42, 47: gear 43, 45: bracket

Claims (2)

A frame having an upper plate having an opening which is formed in a rectangular frame of a two-layer structure by a plurality of beams arranged in a length and a width and provided as a path for movement of a quartz tube in an upper layer, and a lower plate attached to a lower layer; A plurality of fixed shafts that are rotated by a power source are coupled to the ends of the plurality of support brackets, and coupled to a plurality of transport sprockets at both ends of the plurality of fixed shafts, and two glass tube transport chains fastened to the transport sprockets. Glass tube conveying means arranged in one closed loop leading to an upper space of the upper plate and the opening and a space between the upper plate and the lower plate, wherein a quartz tube is inserted into a holder of the two glass tube conveying chains; And Both ends of the support panel fixed to a plurality of supports are rotated by a power source and a fixed shaft having a sprocket for rotation is coupled, and two guides are moved up and down via a pair of guide rails and guides on one surface of the support panel. It is coupled so as to be possible, the integral power transmission sprocket and the roller is rotatably coupled by a guide rod between the two guides, the rotating chain fastened to the rotating sprocket wraps the power transmission sprocket one A glass tube rotating means formed in a closed loop of the upper part of the cam, wherein an actuating rod positioned below the guide is rotated by a power source; Glass tube transport and rotation apparatus of the cold cathode fluorescent lamp manufacturing apparatus for baking comprising a. The method of claim 1, The rotating chain of the glass tube rotating means moved up and down by the cam has a lower end portion in contact with the upper surface of the guide and the cam so that the moving rod, the power transmission sprocket, and the roller can move up and down. Glass tube conveying and rotating apparatus of the cold cathode fluorescent lamp manufacturing apparatus for baking, characterized in that is configured longer than the distance between the sprocket for rotation of the fixed shaft of both ends.

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