KR20010016137A - Kuit having a plurality of pins for V-shaped cutter - Google Patents

Abstract

PURPOSE: A multi-pin kit for a V-cutter is provided to simultaneously process a V-groove on a light guide panel by using the same number of pins as that of the V-grooves. CONSTITUTION: A multi-pin kit is comprised of a fixing member(19) fixed on a lifting piece; a fastening panel(20) fixed on the fixing member by a connecting member(21); a buffer panel(10) installed between the fixing panel and the fastening panel and prepared with a magnet(9) inserted inside and a resilient member(11) fixed on a lower face; and a guide panel(14) forming an insertion hole(15). In case of a narrow installation interval of a pin(12), more loads are applied to the resilient member than in case of the wide installation interval. Accordingly, the load applied to the entire light guide panel is equally kept upon processing the V-groove by increasing the protrusion amount of the pin from the guide panel(14).

Description

Kit having a plurality of pins for V-shaped cutter}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vcutting machine used when processing a light guide panel of a backlight unit for an LCD, and more specifically, a plurality of V grooves on a light guide plate at a desired interval at the same time. It relates to a multi-pin kit of a breaker to form.

LCD (liquid crystal display) is a display device of various information and can not emit light by itself, so it requires a separate backlight unit to illuminate the LCD screen by placing a light source on the back.

As LCD is the second semiconductor industry with infinite potential, huge investments are being made in Japan, Korea, and Taiwan. As a result, the back light unit, which is a major component, is also rapidly growing in the LCD-related parts industry. It is happening.

In other words, as the LCD module (Module) has become thinner and lighter due to the demand for multifunction and high quality, the backlight unit mounted therein also has a very thin and light side light method in the conventional thick and heavy direct method. It is developing.

The backlight unit using the side light method must scatter a light emitted to one side of the light guide plate to have a uniform brightness on the light guide plate, so that a pattern of a certain shape must be formed on the bottom of the polarizing plate.

That is, since a light source for emitting light is installed on one side of the light guide plate, the distance between the patterns should be kept away from the light source, and the dust point from the light source should be set narrower so that the brightness of the light is uniformly maintained on the surface of the light guide plate. It becomes possible.

As described above, as the type of pattern formed on the bottom surface of the light guide plate, a groove pattern type applied to a TFT-LCD monitor or the like and a print pattern type applied to a notebook P / C and a monitor are known.

FIG. 1 is a longitudinal cross-sectional view of a backlight unit to which a light guide plate having a groove pattern is applied, an upper part of which is a plane of a light guide plate on which a liquid crystal display element is disposed, and a lower part of which is a bottom surface of the light guide plate.

Looking at the structure, a light source (2) using an LCD or the like is disposed on the side of the light guide plate (1) made of a light transmissive material, and the bottom surface of the light guide plate (V) for uniformly scattering the light emitted from the side onto the light guide plate. A plurality of grooves 3 are formed and a reflective sheet 4 of PET material is attached to the bottom of the light guide plate 1.

As described above, the distance between the V grooves 3 formed on the bottom surface of the light guide plate 1 and scattering light emitted from the light source to the top surface of the light guide plate decreases the loss of irradiated light as the closer to the light source 2. As the distance from the light source is increased, the amount of loss in the process of transmitting light increases, so that the interval is set narrow so that the luminance of light in the plane of the light guide plate 1 can be maintained uniformly.

In the backlight unit as described above, the light irradiated from the light source 2 by the V-groove 3 formed on the bottom surface of the light guide plate 1 is not deflected along the light guide plate but properly refracted in the direction of the arrow of FIG. Since it is widely spread, the liquid crystal display device installed above the light guide plate is distributed.

As such, the V-groove 3 for uniformly refracting the light to the plane of the light guide plate 2 in the process of the light emitted from the light source 2 passing through the light guide plate 1 is referred to as a "vcutting machine". Processed by

Conventionally, a lifting piece is installed on a slider horizontally moving along the guide rail in the X-axis direction, and the lifting piece moves up and down by driving a control means such as a cylinder or a step motor, and the bottom of the lifting piece has a V groove on a light guide plate. One pin for forming is fixed.

Therefore, if the operator operates the machine with the light guide plate for forming the V-groove on the table, the lifting means lowers to the bottom dead center by driving the control means while the slider moves along the guide rail. When completed, one V groove is formed on the light guide plate.

After one V groove is formed by the operation as described above, the table is moved as much as the pitch of the V groove, and thus the operation as described above is performed while the V groove is continuously processed on the light guide plate.

However, the conventional breaker having such a structure has the following problems.

First, since one V groove orthogonal to the light guide plate is processed one by one, the working time is increased according to the processing of the V groove, thereby increasing the manufacturing cost of the light guide plate.

That is, after the slider is reciprocated along the guide rail and the table is moved by 1 pitch and the V groove is processed in parallel on the light guide plate, the light guide plate is corrected to have a 90 ° phase difference on the table, and then the operation as described above is performed. Machining of the V groove takes a long time because the processing of the V groove is completed.

Second, since one pin is mounted on the elevating piece to process the V-groove, the wear of the machine is intensified due to the continuous repetitive work, which shortens the life of the machine.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object thereof is to enable simultaneous processing of a V groove on a light guide plate by using the same number of pins as the number of V grooves processed on the light guide plate.

Another object of the present invention is to maximize the operation rate of the device by enabling the rapid replacement of the pin even when the pin is broken during the processing of the V groove.

Still another object of the present invention is to make it possible to uniformly maintain the load on the pin by the resilient material and the height adjustment bolt installed on the buffer plate even if the load on the pin varies according to the pitch of the V groove.

1 is a longitudinal sectional view of a backlight unit to which a light guide plate having a groove pattern is applied;

Figure 2 is a front view of the breaker to which the present invention is applied

Figure 3 is an exploded perspective view showing the main part of the present invention

4 is a front view of the coupled state of FIG.

5 is a cross-sectional view taken along the line A-A of FIG.

6a and 6b is a schematic diagram showing the slope of the lower pin in accordance with the installation interval of the pin

Explanation of symbols for main parts in the drawings

7: platform 9, 25, 26: magnet

10: buffer plate 11: resilient material

12: pin 14: guide plate

15: insertion hole 18: daffin kit

19: fixing member 20: fastening plate

27: height adjustment bolt 29: loosening prevention plate

According to a form of the present invention for achieving the above object, a fixing member fixed to the lifting piece, a fastening plate fixed to the fastening member by the fastening member, and is mounted to be positioned between the fixing plate and the fastening plate, the magnet is inserted therein The bottom surface is provided with a multi-pin kit for a vickering machine comprising a guide plate formed with a buffer plate in which the elastic member is fixed along the longitudinal direction, and a plurality of pin insertion holes to be connected to the bottom surface of the elastic member.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 2 to 6 as an embodiment.

FIG. 2 is a front view of the breaker to which the present invention is applied, FIG. 3 is an exploded perspective view showing the main part of the present invention, and FIG. 5 is a cross-sectional view taken along line AA of FIG.

As shown in FIG. 2, the elevating piece 7 is provided on the slider 6 horizontally moving along the guide rail 5 so that the elevating piece 7 can be elevated according to the driving of the control means 8. As shown in Fig. 5, a buffer plate 10 having a plurality of magnets 9 inserted therein is mounted therein, and the elastic member 11 is fixedly exposed to the bottom of the buffer plate along the longitudinal direction.

More preferably, the elastic member 11 fixed to the bottom surface of the buffer plate 10 is configured to be double as the elastic material exposed to the bottom surface of the buffer plate 10 is harder than the elastic material positioned on the upper side.

This can easily absorb the impact applied to the pin 12 when machining the V-groove 3 on the light guide plate 1 to increase the life of the pin 12 as well as to distribute the load applied to the pin evenly. To do so.

The guide plate 14 is fixed to the bottom surface of the buffer plate 10, and the guide plate 14 has a plurality of insertion holes 15 formed along the position of the elastic member, so that the V groove ( When the pins 12 for processing 3) are respectively inserted, the upper surface of the pins is connected to the elastic member 11.

The pin 12 fitted in the insertion hole 15 is not separated from the insertion hole of the guide plate 14 by the magnetic force of the magnet 9 inserted into the buffer plate 10 unless an impact is applied.

In addition, at least two or more dowel pins 16 are fixed to any one of these connection surfaces so that the guide plate 14 can be accurately mounted on the bottom surface of the buffer plate 10, and the position is located at a point corresponding to the dowel pins. Crystal hole 17 is formed.

Therefore, when the guide plate 14 is placed on the bottom surface of the buffer plate 10, when the connection surface is faced so that the dowel pin 16 is fitted into the positioning hole 17, the assembling work of the daffin kit 18 is completed.

The buffer plate 10 and the guide plate 14 configured as described above may be directly mounted on the elevating piece 7, but are fixed to the elevating piece 7 as shown in FIG. 3 so that they can be easily mounted on the elevating piece. After fixing the member 19, the fastening plate 20 having the locking jaw 20a is fixed to the fixing member by the fastening member 21 so that the buffer plate 10 and the guide plate 14 are supported therebetween. It is more preferable to construct.

The fastening plate 20 may be directly fixed to the fixing member 19 with the fastening member 21, but the fastening plate 20 may be fixed between the fixing member 19 and the fastening plate 20 to maintain fastening accuracy and stability therebetween. It is more preferable to insert the rubber plate 22.

In addition, the recessed grooves 23a and 23b corresponding to the connection surface of the fixing member 19 and the tightening plate 20 are respectively provided so as to play a positioning role when the fixing member 19 and the tightening plate 20 are fastened. It is formed so that the key 24 for accommodating the position of the tightening plate 20 in the recess groove is accommodated.

As described above, when the buffer plate 10 and the guide plate 14 are configured to be supported between the fixing member 19 and the tightening plate 20, the fixing member 19 to which the upper surface of the buffer plate 10 is connected and By inserting the magnets 24 and 25 into the bottom of the clamping plate 20, the magnetic force of the magnet 9 inserted into the buffer plate 10 does not require a separate fixing means, so that the buffer plate 10 and The guide plate 14 is supported between the fixing member 19 and the tightening plate 20.

The strength of the magnets 9, 25, 26 inserted into the buffer plate 10, the guide plate 14, and the fixing member 19 and the fastening plate 20 has a very large magnetic force of about 2500-3500 gauss. .

Therefore, the phenomenon in which their positions are changed due to impact, etc. is prevented in advance, and the pin 12 inserted in the insertion hole 15 of the guide plate 14 is prevented from being separated from the insertion hole. Since the pin 12 inserted in the 15 is maintained only so as not to be separated from the insertion hole by the magnetic force of the magnet 9, the pin broken by the operator from the insertion hole 15 for the replacement of the broken pin 12. Pull it downward to easily detach it.

Meanwhile, in the present invention, since the interval between the V grooves 3 processed on the light guide plate 1 is different, the load applied to the plurality of pins 12 during the processing of the V grooves 3 also varies, thereby supporting the guide plate 14. A plurality of height adjustment bolts 27 to adjust the inclination of the buffer plate 10 is screwed to the tightening plate 20 as shown in FIG.

Therefore, in the case where the installation interval of the pin 12 is narrow, since the load on the elastic member 11 takes more load than the side where the installation interval of the pin is wide when processing the V groove 3 on the light guide plate 1, the guide plate 14 The amount of protrusion of the pin from the surface of the fin is increased to be very fine (about 0.1 mm) so that the load applied to the entire light guide plate 1 during the processing of the V groove 3 can be maintained evenly.

That is, when the height adjustment bolt 27 screwed to the tightening plate 20 is rotated clockwise so that the installation interval of the pin 12 is located on the narrow side, the tightening plate is caused by the magnetization of the magnets 9 and 25. Since the buffer plate 10 attached to the 20 is very finely lowered, the lowest end of the pin 12 has a constant slope as shown in FIGS. 6A and 6B.

As a result, the load applied to the light guide plate 1 can be maintained evenly, thereby increasing the service life of the pin and forming a V groove 3 having a uniform depth on the light guide plate 1.

The height adjustment bolt 27 serving as described above may be screwed onto the tightening plate 20 to be exposed to the outside, but in order to ensure stability, the tightening plate finely adjusted height adjusting bolt 27 ( It is configured to protect by the anti-loosening plate 29 that is fixed to the fastening member 28 to 20).

Accordingly, in the state where the height adjustment bolt 27 is rotated according to the interval of the V groove 3 processed in the light guide plate 1 to adjust the protrusion amount of the pin 12, the V groove 3 is disposed on the light guide plate 1. It is possible to prevent the phenomenon that the protrusion amount of the pin 12 is changed by the external force during processing.

On the other hand, when the diameter of the insertion hole 15 is largely drilled to fit the pin 12 having a large diameter on the guide plate 14, the guide hole 14 does not cause a great obstacle in maintaining the straightness of the insertion hole 15. The plate 14 may be a single body, but when the pin 12 having a small diameter is inserted, the diameter of the insertion hole 15 should also be reduced. In this case, the straightness in the drilling operation of the insertion hole 15 is required. There is a limit to maintaining the guide plate 14 is preferably composed of a plurality of plate-like.

This is understood that when the guide plate 14 is formed in plural, the thickness of the guide plate to be processed becomes thin so that the straightness of the insertion hole 15 can be easily maintained.

As described above, the present invention has several advantages as compared to the conventional breaker.

First, the bottom surface of the lifting piece is equipped with the same number of pins as the number of V grooves processed on the light guide plate, and the V groove is processed on the light guide plate by one reciprocating movement of the table or slider, thus greatly reducing the production cost of the light guide plate. can do.

That is, in the related art, assuming that 250 V grooves are processed in one light guide plate in the horizontal and vertical directions, the slider has to be reciprocated 500 times while the table is moved by one pitch. Since the processing of the V-groove is completed by the reciprocating motion or the reciprocating motion of the slider or the table twice, the productivity is improved by 250 times.

Second, even if any one of the multiple pins mounted on the elevating plate is damaged, the pin is inserted into the insertion hole formed in the guide plate to maintain the insertion state of the pin by the magnetic force of the magnet inserted on the buffer plate. The replacement of the pin is performed by pulling out the new pin and inserting a new pin.

Third, even if the load on the resilient material varies depending on the installation interval of the pin, the load on the pin can be maintained evenly according to the adjustment of the bolt, which increases the life of the pin and processes the V groove of uniform depth. You can do it.

Claims (8)

V-cutting machine, characterized in that it is composed of a guide plate is formed on the lifting piece and the magnet is inserted in the inside and the bottom of the cushioning plate is fixed to the elastic member along the longitudinal direction, and a plurality of pins are inserted into the bottom of the elastic member Daffin Kit The method of claim 1, The fixing member is fixed to the elevating piece, the fastening plate having a locking jaw is fixed to the fixing member by a fastening member so that the buffer plate and the guide plate is mounted between the fixing member and the fastening plate. The method of claim 1, A multi-pin kit for v-cutting machine, characterized in that the plurality of height adjustment bolts are screwed to adjust the inclination of the buffer plate in the longitudinal direction on the tightening plate. The method of claim 3, wherein An anti-loosening plate for maintaining the adjustment state of the height adjustment bolt on the upper surface of the tightening plate, characterized in that the fixing pin by the fastening member. The method of claim 1, And a magnet is inserted into the bottom surface of the fastening plate and the fixing member to which the upper surface of the buffer plate is connected. The method of claim 1, V-pinting kit for a pinting machine, characterized in that the elastic material is fixed to the bottom of the buffer plate made of at least two or more. The method of claim 1, Multi-pin kit for v-cutting machine, characterized in that the guide plate is made of a plurality of plates. The method according to claim 1 or 7, At least two dowel pins fixed to any one of the connection surface of the buffer plate and the guide plate and the pin pin for a vutter machine, characterized in that to form a positioning hole at a point corresponding to the dowel pins.