CN102641821A - Glue dispenser for bonding optical lenses - Google Patents

Abstract

A dispenser for adhering optical lens is used for adhering the optical lens on a circuit board with light emitting diodes, and comprises a platform, a transverse rail and a straight rail. The platform is used for arranging an optical lens and a circuit board, the transverse rail stretches across the upper part of the platform, the straight rail is arranged on the transverse rail, the straight rail is provided with an adjacent suction head module and a camera lens, the suction head module is used for sucking the optical lens, and the suction head module can move in three axes through the transverse rail and the straight rail. Therefore, the camera module is used for obtaining the relative position of the optical lens and the light emitting diode, the sucker module is used for moving the optical lens to the position of the light emitting diode obtained by the camera lens, and the optical lens is adhered and fixed on the circuit board, so that the phenomenon that the coordinate positions of the optical lens and the light emitting diode are deviated in the adhering and fixing process is avoided.

Description

Glue dispenser for bonding optical lenses

technical field

The invention refers to a dispensing machine for adhering an optical lens, in particular to a dispensing machine for adhering an optical lens to a circuit board with light-emitting diodes.

Background technique

LED displays have gradually become mainstream products in the market. Currently, LED displays on the market mainly include edge-lit LED displays and direct-lit LED displays.

The so-called LED display, as the name suggests, uses light-emitting diodes (LEDs) as the main light source. Because light-emitting diodes have the advantages of long life, small size, and low energy consumption, they have gradually become mainstream products in global lighting equipment. However, because the light-emitting diodes are limited in the irradiation angle, the number of light-emitting diodes used is too large, which also increases the cost. Therefore, in order to reduce the number of light-emitting diodes used and make the irradiation surface more uniform Therefore, at present, an optical lens is added on the backlight module relative to the top of the light-emitting diodes, so as to use the optical lens to increase the illumination angle of the light-emitting diodes and make the illumination surface of the backlight module more precise. uniform.

As shown in FIG. 1 , it is a schematic cross-sectional view of a conventional backlight module. As shown in the figure, the known backlight module A is mainly provided with at least one light-emitting diode C on a circuit board B, and an optical lens D is additionally provided above the light-emitting diode C, which is transparent The limitation of the illumination angle of the light-emitting diode C is solved through the optical lens D.

However, when the current backlight module A is manufactured, the light-emitting diode C is mainly glued on the circuit board B first, and then the optical lens D is fixed on the circuit board B relative to the light-emitting diode C. above. However, in the process of bonding the light-emitting diode C and the circuit board B, the tin liquid E is mainly attached to the relative position on the circuit board B first, and then the light-emitting diode C is arranged on the tin liquid E, so that The tin liquid E achieves the effect of solidification after passing through the oven, and then achieves the effect of adhesion, and can achieve the effect of electrical connection with the circuit board B through the tin liquid E.

Since the light-emitting diode C is placed on the liquid tin E before being adhered, and then the liquid tin E is solidified in an oven, the liquid tin E itself belongs to a metal liquid during the bonding process, and its liquid substance itself has Therefore, when the light-emitting diode C is placed on the tin liquid E and then transported to the oven, it is easy to cause the displacement a of the light-emitting diode C, so that after the optical lens D is fixed, the optical lens D cannot be connected with the light The diodes C are kept at the same central position, so that the optical lens D cannot spread the light-emitting range of the light-emitting diodes C to an optimal range, and it is easy to cause unevenness of the light-emitting surface.

Therefore, how to solve the problems in the above-mentioned prior art is the subject that the inventors of the present case want to solve.

Contents of the invention

The purpose of the present invention is to provide a dispensing machine for adhering optical lenses, which can be used to adhering optical lenses to a circuit board with light-emitting diodes, and can overcome the defects in the prior art, The light-emitting range of the polar body C is spread to an optimal range, so as to avoid unevenness of the light-emitting surface.

To achieve the above object, the present invention discloses a glue dispenser for adhering an optical lens, for adhering an optical lens to a circuit board with light-emitting diodes, characterized in that the glue dispenser includes:

a platform for arranging the optical lens and the circuit board, the platform has a pair of parallel tracks;

a cross rail spanning the track of the platform;

A straight rail is arranged on the horizontal rail and is perpendicular to the platform. A suction head module and a camera module are arranged on the straight rail; the suction head module is used for absorbing the optical lens, and can be placed along the straight rail The platform moves vertically; the camera module is used to obtain the positions of the optical lens and the light emitting diode on the circuit board.

Wherein, the camera module is adjacent to the suction head module.

Wherein, the suction head module has a suction head for absorbing the optical lens.

Wherein, the camera module further includes a lens and an optical window.

Wherein, the glue dispensing machine further includes an air pressure device, and the suction head module on the straight rail is connected with the air pressure device.

Wherein, the straight rail further includes a fixing seat.

Wherein, the fixing seat further includes an upper fixing plate and a lower fixing plate, the upper fixing plate has a first through hole, and the lower fixing plate has a second through hole.

Wherein, the side of the upper fixing plate of the fixing base is provided with a locking element, and the locking elements penetrate through the upper fixing plate and are partially exposed in the first through hole.

Wherein, a control panel is further included, and the control panel is arranged on one side of the platform for controlling the horizontal rail and the straight rail.

Through the above structure, the present invention uses the camera module to obtain the relative position of the optical lens and the light-emitting diode, and then uses the suction head module to move the optical lens to the position of the light-emitting diode obtained by the camera lens, and then sticks and fixes it on the On the circuit board, avoid the phenomenon that the coordinate positions of the optical lens and the light-emitting diode are shifted during the process of adhesion and fixing.

Description of drawings

FIG. 1 is an enlarged cross-sectional schematic diagram of a conventional backlight module.

Fig. 2 is a schematic perspective view of the present invention.

FIG. 3 is a partially enlarged perspective view of FIG. 2 .

FIG. 4 is a schematic view of the use state of FIG. 3 .

Fig. 5 is a schematic plan view of the first action of the present invention.

Fig. 6 is a schematic plan view of the second action of the present invention.

Detailed ways

The implementation of the present invention will be described in detail below in conjunction with the drawings and examples, so that the realization process of how to use technical means to solve technical problems and achieve technical effects in the present invention can be fully understood and implemented accordingly.

As shown in FIG. 2 and FIG. 3 , it is a three-dimensional schematic diagram and a partially enlarged perspective schematic diagram of the present invention. As shown in the figure, the glue dispenser of the present invention is mainly used for adhering an optical lens 10 on a circuit board 20 with light emitting diodes 21 , and includes a platform 30 , a horizontal rail 40 and a straight rail 50 .

The platform 30 is used for setting the circuit board 20 and the optical lens 10 , and a pair of parallel rails 31 are arranged on it.

The horizontal rail 40 straddles between the parallel rails 31 on the platform 30 and can move along the rails 30 .

The straight rail 50 is arranged on the horizontal rail 40 , perpendicular to the platform 30 , and can move along the horizontal rail 40 , on which a suction head module 60 , a fixing seat 70 and a camera module 80 are arranged. The suction head module 60 further includes a suction head 61, which can move vertically on the platform 30 along the straight rail 50, and cooperate with the track 31 and the horizontal rail 40 of the platform 30, so that the suction head module 60 can reach on the platform 30. Three-axis movement. The fixing seat 70 is adjacent to the side of the suction head module 60, and further includes an upper fixing plate 71 and a lower fixing plate 72. The upper fixing plate 71 has a first through hole 73, and a lock is provided on the side of the upper fixing plate 71. The fixing element 74 penetrates the fixing plate 71 and partially protrudes from the first through hole 73 ; the lower fixing plate 72 has a second through hole 75 . The camera module 80, adjacent to the other side of the fixing seat 60 and the suction head module 70, further includes a camera lens 81 and an optical window 82, the camera lens 81 is located above the optical window 82, and the optical window 82 is located on the camera lens Between 81 and platform 30.

In this embodiment, the glue dispenser further includes an air pressure device 90 and a control panel 91. The air pressure device 90 is arranged behind the platform 30 and is respectively connected with the straight rail 40 and the suction head module 60 so that the straight rail 40 and the suction head module The head module 60 can be driven by the pneumatic device 90 . The control panel 91 is disposed on one side of the platform 30 for controlling the horizontal rail 40 , the straight rail 50 , the suction head module 60 and the camera module 70 .

Please refer to FIG. 4 , which is a schematic view of the usage state in FIG. 3 . As shown in the figure, the fixing seat 70 of the present invention is mainly used for setting a rubber cartridge 92 , and the rubber cartridge 92 has a barrel body 93 and a needle 94 . Please cooperate with Fig. 3 at the same time, the rubber cartridge 92 is inserted from the top of the first through hole 73 of the upper fixing plate 71, after passing through the first through hole 73, and then insert the needle 94 from above the second through hole 75 of the lower fixing plate 72 Insert it so that the cylinder body 93 of its rubber tube 92 is arranged between the upper fixing plate 71 and the lower fixing plate 72, and it is fixed by the locking element 74 on the upper fixing plate 71, while the needle head 94 protrudes from the lower fixing plate 72 below.

It is worth mentioning that the top of the rubber tube 92 can be connected to an air pressure device (not shown in the drawings) by means of an air pipe 95, and the inside of the body 93 of the rubber tube 92 is filled with an adhesive, so that the air pressure device can be used to promote adhesion. Agent, the adhesive is extruded from the needle 94 end.

In terms of operation, please refer to FIG. 5 and FIG. 6 at the same time, which are schematic plan views of the first action and the second action of the present invention. As shown in the figure, please cooperate with FIG. 4 at the same time. When a plurality of optical lenses 10 and a circuit board 20 with a plurality of light-emitting diodes 21 are installed on the platform 30, the control panel 92 can be used to input a plurality of optical lenses in advance. 10 and a plurality of light-emitting diodes 21 coordinate positions, then move the camera module 80 to the top of the optical lens 10 by moving the horizontal rail 40 and the straight rail 50, and use the camera lens 81 and the optical window 82 to find the optical The coordinates of the lens 10, confirm whether the coordinate position of the optical lens is correct, after the coordinate position is determined, then move the suction head module 60 to the top of the optical lens 10, and use the air pressure device 90 to push the suction head module 60, so that The suction head 61 moves along the platform direction, and absorbs the optical lens 10 .

Afterwards, move the camera module 80 to the top of the light emitting diode 21, use the camera module 80 to confirm whether the coordinate position of the light emitting diode 21 is correct, and then move the fixing seat 70 to the light emitting diode 21 after confirmation. above, use the pneumatic device 90 to squeeze the adhesive, so that the adhesive is coated on the circuit board 20, and finally move the suction head module 60 to the position of the light-emitting diode 21, and then use the pneumatic device 90 to make it The suction head 61 on the suction head module 60 moves along the direction of the platform 30 , and then adheres and fixes the optical lens 10 on the position of the circuit board 20 relative to the LED 21 .

Thereby, a plurality of optical lenses 10 and a circuit board 20 having a plurality of light-emitting diodes 21 can be arranged behind the platform 30 at the same time, and the optical lenses 10 are adhered to the circuit board 20 one by one, and the camera module 80 to repeatedly compare the coordinate positions of the optical lens 10 and the light-emitting diode 21 so that the optical lens 10 and the light-emitting diode 21 can be located on the same center to avoid the phenomenon of offset.

To sum up, with the glue dispenser of the present invention, each optical lens and each light-emitting diode can be effectively kept at the same central position, and at the same time, the phenomenon of eccentricity between the optical lens and the light-emitting diode can be avoided .

Although the present invention is disclosed above with the foregoing embodiments, it is not intended to limit the present invention. Any person familiar with similar skills may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection shall be defined by the scope of patent application attached to this specification.

Claims (9)

1. a point gum machine that is used to stick together optical lens has on the circuit board of light-emittingdiode in order to an optical lens is attached to one, it is characterized in that this point gum machine comprises:

One platform is in order to furnish this optical lens and this circuit board, the track that has pair of parallel on this platform;

One traverse rod is across on the track of this platform;

Rail always is located on this traverse rod and perpendicular to this platform, this straight rail is provided with a suction nozzle module and a shooting module; This suction nozzle module is in order to adsorbing this optical lens, and can on this platform, be in vertical motion along this straight rail; This shooting module is in order to obtain the position of the light-emittingdiode on this optical lens and this circuit board.

2. the point gum machine that is used to stick together optical lens as claimed in claim 1 is characterized in that, this shooting module is adjacent with this suction nozzle module.

3. the point gum machine that is used to stick together optical lens as claimed in claim 1 is characterized in that, has a suction nozzle on this suction nozzle module, and this suction nozzle is in order to adsorb this optical lens.

4. the point gum machine that is used to stick together optical lens as claimed in claim 1 is characterized in that, this shooting module more includes a camera lens and an optical window.

5. the point gum machine that is used to stick together optical lens as claimed in claim 1 is characterized in that this point gum machine more includes a pneumatic shuttle, and the suction nozzle module on this straight rail is connected with this pneumatic shuttle.

6. the point gum machine that is used to stick together optical lens as claimed in claim 1 is characterized in that, more includes a holder on this straight rail.

7. the point gum machine that is used to stick together optical lens as claimed in claim 6 is characterized in that, this holder more includes a upper mounted plate and a bottom plate, and upper mounted plate has one first open-work, and bottom plate has one second open-work.

8. the point gum machine that is used to stick together optical lens as claimed in claim 7 is characterized in that the side of the upper mounted plate of this holder is provided with a lock member, and locking runs through upper mounted plate between unit and part is exposed in first open-work.

9. the point gum machine that is used to stick together optical lens as claimed in claim 1 is characterized in that, more includes a control panel, and this control panel is located at this platform one side, in order to control this traverse rod and this straight rail.

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