CN101665318A - Bending clamping claw, light tube bending device and light tube bending method - Google Patents

Abstract

The invention relates to a bending clamping claw, a light tube bending device and a light tube bending method, aiming at solving the technical problem of providing the bending clamping claw which comprises a first clamping piece and a second clamping piece, wherein the first surface of the first clamping piece is provided with a first and a second clamping grooves which are vertical to each otherand intersectant with each other; and when being buckled and joint with the first surface of the first clamping piece, the second clamping piece covers the first and the second clamping grooves.

Description

Bending clamping claw, light tube bending device and light tube bending method

[technical field]

The present invention relates to a kind of bending clamping claw, bending device and bending method, particularly relate to a kind of bending clamping claw, bending device and bending method of fluorescent tube.

[background technology]

Liquid-crystal display (LCD) device is owing to have in light weight, compactness and the advantage of less energy-consumption has been widely used in various industrial circles.Because the display panels of LCD device is not self luminous, so the LCD device needs a kind of backlight that illumination is provided to display panels.

Cold-cathode fluorescence lamp is a light source common in the backlight, and its type shape has straight pipe type, U type or П type etc.Wherein U type or П type fluorescent tube are by the straight pipe type light tube bending.Fig. 1 has illustrated the schematic top plan view of a kind of light tube bending device of prior art, and it has: conflict plate 12, conflict plate 12 are used to locate first end of fluorescent tube 141,142,143; Heat described fluorescent tube and treat the well heater 161,162,163 of bending place; Between described fluorescent tube (141,142 or 143) second end and described well heater (161,162 or 163), also distinguish the tong 131,132,133 of the described fluorescent tube of clamping; The stable folder 151,152,153 of the difference described fluorescent tube of clamping (141,142 or 143) second end.When fluorescent tube length was short, stable folder 151,152,153 could.Described tong 131,132,133 can be to described conflict plate 12 upsets under the driving of mechanical arm (not illustrating).Described stable folder 151,152,153 can be with described tong 131,132,133 to described conflict plate 12 upsets.Bending device among Fig. 1 can bend 3 fluorescent tubes together, if increase the quantity of tong, well heater, stable folder then can bend more fluorescent tube together.The process of its bending fluorescent tube please refer to Fig. 2 and Fig. 3, and Fig. 2 is the front elevational schematic of bending device before the bending fluorescent tube among Fig. 1, and Fig. 3 is the front elevational schematic of bending device after light tube bending is become the U type among Fig. 1.As shown in Figure 2, first end 1411 of fluorescent tube 141 is conflicted on conflict plate 12, and the coupling end 1415 that is positioned at fluorescent tube first end 1411 is placed on the guide channel on the conflict plate 12; The middle part (treating kink) 1413 of well heater 161 heating fluorescent tubes 141.Treat its softening after, tong 131 with stable folder 151 along the arrow E direction to 12 upsets of conflict plate, just can as shown in Figure 3 fluorescent tube 141 be bent into the U type.In like manner fluorescent tube 142,143 also is bent into the U type.Fig. 4 illustrates the decomposing schematic representation of the tong 131 among Fig. 1, and tong 131 comprises that first intermediate plate 1311 and second intermediate plate, 1312, the first intermediate plates 1311 are connected mechanical arm respectively with second intermediate plate 1312, and mechanical arm is controlled the action of first intermediate plate 1311 and second intermediate plate 1312.Have on first intermediate plate 1311 can ccontaining fluorescent tube through slot 13115.When the clamping fluorescent tube, fluorescent tube passes through slot 13115, the second intermediate plates 1312 and first intermediate plate 1311 fastens to cover through slot 13115.Light tube bending device among Fig. 1 can only be used to bend U type fluorescent tube, and is not suitable for bending П type fluorescent tube, and versatility is not strong.

[summary of the invention]

An object of the present invention is to provide a kind of bending clamping claw, it comprises: first intermediate plate and second intermediate plate; Have vertical and crossing first holding tank and second holding tank mutually on the first surface of described first intermediate plate; When described second intermediate plate was fastened on the first surface of described first intermediate plate, it covered described first holding tank and described second holding tank.

As optional technical scheme, the cross section of described first holding tank or described second holding tank is an isosceles right angle trigonometry type.

As optional technical scheme, have groove on the first surface of described first intermediate plate, described groove is adjacent to the intersection of described first holding tank and second holding tank.

Another object of the present invention provides a kind of light tube bending device, and it comprises above-mentioned bending clamping claw.

Another object of the present invention provides a kind of light tube bending method, and it may further comprise the steps:

Bending clamping claw according to claim 1 is provided;

Locate first end of described fluorescent tube, use the described fluorescent tube of the described first holding tank clamping, the clip position of first holding tank is in the side away from described first end of first kink of described fluorescent tube at this moment;

Heat first kink of described fluorescent tube;

The described bending clamping claw that overturns makes described fluorescent tube at described first kink bending, 90 degree;

Use the described fluorescent tube of the described second holding tank clamping, the clip position of second holding tank is in the side away from described first end of first kink of described fluorescent tube at this moment;

Heat second kink of described fluorescent tube;

The described bending clamping claw that overturns makes described fluorescent tube at described second kink bending, 90 degree.

Compared with prior art, bending clamping claw of the present invention promptly can bend out U type fluorescent tube, also can bend out П type fluorescent tube, and versatility is good.

[description of drawings]

Fig. 1 has illustrated the schematic top plan view of a kind of light tube bending device of prior art;

Fig. 2 is the front elevational schematic of bending device before the bending fluorescent tube among Fig. 1;

Fig. 3 is the front elevational schematic of bending device after light tube bending is become the U type among Fig. 1;

Fig. 4 illustrates the decomposing schematic representation of the tong 131 among Fig. 1;

Fig. 5 illustrates the front elevational schematic of first intermediate plate of the bending clamping claw of first kind of embodiment of the present invention;

Fig. 6 illustrates the right side of the bending clamping claw of first kind of embodiment of the present invention and looks synoptic diagram;

Fig. 7 illustrates the schematic top plan view of the bending clamping claw of first kind of embodiment of the present invention;

Fig. 8 to Figure 12 illustrates the process synoptic diagram of the bending clamping claw bending fluorescent tube of first kind of embodiment of the present invention;

Figure 13 illustrates the front elevational schematic of the fluorescent tube of velamen bending;

Figure 14 illustrates the local enlarged diagram of fluorescent tube among Figure 13;

Figure 15 illustrates the front elevational schematic of first intermediate plate of the bending clamping claw of second kind of embodiment of the present invention.

[embodiment]

Please refer to Fig. 5 to Fig. 7, Fig. 5 illustrates the front elevational schematic of first intermediate plate of the bending clamping claw of first kind of embodiment of the present invention; Fig. 6 illustrates the right side of the bending clamping claw of first kind of embodiment of the present invention and looks synoptic diagram; Fig. 7 illustrates the schematic top plan view of the bending clamping claw of first kind of embodiment of the present invention.The bending clamping claw 20 of present embodiment comprises: first intermediate plate 21 and second intermediate plate 22; Have vertical and crossing first holding tank 212 and second holding tank 213 mutually on the first surface 211 of described first intermediate plate 21; When described second intermediate plate 22 was fastened on the first surface 211 of described first intermediate plate 21, it covered described first holding tank 212 and described second holding tank 213, to realize being placed on the clamping of the fluorescent tube in first holding tank 212 or second holding tank 213.

As shown in Figure 6 and Figure 7, be isosceles right angle trigonometry type with the Cross section Design of described first holding tank 212 and described second holding tank 213 in the present embodiment.Such benefit be can ccontaining different tube diameters fluorescent tube.In other embodiments, the cross section of holding tank also can be square, arc etc.

Use first holding tank, the 212 clamping fluorescent tubes of above-mentioned bending clamping claw 20 can make that its bending clamping claw as shown in Figure 4 is the same can to bend out U type fluorescent tube.And above-mentioned bending clamping claw 20 can also be used to bend out П type fluorescent tube, is elaborated below.

Fig. 8 to Figure 12 illustrates a kind of process synoptic diagram of the bending clamping claw 20 bending П type fluorescent tubes of first kind of embodiment of the present invention, and for making diagram clear, second intermediate plate 22 is not drawn.At first, locate first end 418 of described fluorescent tube with reference to the mode of prior art, use the described fluorescent tube 41 of described first holding tank 212 clampings as shown in Figure 8, the clip position of this moment is in the side away from described first end 418 of first kink 411 of described fluorescent tube 41.Then, use first kink 411 of the described fluorescent tube of well heater 31 heating as shown in Figure 8, be 8 to 10 seconds general heat-up time, makes first kink 411 softening.Next, along the arrow F direction described bending clamping claw 20 that overturns, make described fluorescent tube 41 as shown in Figure 9 at described first kink, 411 bendings, 90 degree.Get off again, as shown in figure 10 bending clamping claw 20 is resetted and (first intermediate plate 21 will be separated with second intermediate plate 22, to discharge fluorescent tube 41, just can reset), the described fluorescent tube 41 of described second holding tank of use shown in Figure 11 for another example 213 clampings, the clip position of second holding tank 213 is in the side away from described first end 418 of first kink 411 of described fluorescent tube 41 at this moment, simultaneously also can use the partial-length of part section clamping fluorescent tube 41 between first kink 411 and second kink 412 of first holding tank 212 as shown in figure 11.Heat second kink 412 of described fluorescent tube 41 then.And then, make described fluorescent tube 41 at described second kink, 412 bendings, 90 degree along the arrow G direction described bending clamping claw 20 that overturns, become П type fluorescent tube as shown in figure 12.

In the bending process of other embodiment, in the step shown in Figure 11,12, can use the described fluorescent tube 41 of whole length clampings of second holding tank 213, promptly not use the partial-length of part section clamping fluorescent tube 41 between first kink 411 and second kink 412 of first holding tank 212.

The front elevational schematic of the fluorescent tube of velamen bending is shown in Figure 13 remittance; Figure 14 illustrates the local enlarged diagram of fluorescent tube part in dashed region K among Figure 13.Shown in Figure 13 and 14, part fluorescent tube 42 is after bending, and its kink 421 inboards have fold and occur.In first intermediate plate 21 of the bending clamping claw of first kind of embodiment as shown in Figure 5, the sidewall of first holding tank 212 and second holding tank 213 can form four corner angle 2115 in the intersection.When first intermediate plate 213 under as Figure 11 or state shown in Figure 12 during clamping fluorescent tube 42, the fold of kink 421 inboards can be touched corner angle 2115, causes the cracked of fluorescent tube 42 easily.Please refer to Figure 15, for overcoming this problem, first intermediate plate 21 ' of the bending clamping claw of second kind of embodiment of the present invention is more to comprise being provided with on the first surface 211 and adjacent to the groove 216 of the intersection of first holding tank 212 and second holding tank 213 on the basis of first intermediate plate 21 shown in Figure 5.The sidewall of such first holding tank 212 and second holding tank 213 has reduced by corner angle in the intersection, avoided in the bending process fold touching with the kink inboard of fluorescent tube.

Claims (5)

1. bending clamping claw is characterized in that comprising:

First intermediate plate and second intermediate plate;

Have vertical and crossing first holding tank and second holding tank mutually on the first surface of described first intermediate plate;

When described second intermediate plate was fastened on the first surface of described first intermediate plate, it covered described first holding tank and described second holding tank.

2. bending clamping claw according to claim 1, the cross section that it is characterized in that described first holding tank or described second holding tank are isosceles right angle trigonometry type.

3. bending clamping claw according to claim 1 is characterized in that having groove on the first surface of described first intermediate plate, and described groove is adjacent to the intersection of described first holding tank and second holding tank.

4. light tube bending device is characterized in that comprising according to any described bending clamping claw in the claim 1 to 4.

5. light tube bending method is characterized in that comprising:

Bending clamping claw according to claim 1 is provided;

Locate first end of described fluorescent tube, use the described fluorescent tube of the described first holding tank clamping, the clip position of described first holding tank is in the side away from described first end of first kink of described fluorescent tube at this moment;

Heat first kink of described fluorescent tube;

The described bending clamping claw that overturns makes described fluorescent tube at described first kink bending, 90 degree;

Use the described fluorescent tube of the described second holding tank clamping, the clip position of described second holding tank is in the side away from described first end of first kink of described fluorescent tube at this moment;

Heat second kink of described fluorescent tube;

The described bending clamping claw that overturns makes described fluorescent tube at described second kink bending, 90 degree.

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