KR102502732B1 - Adhesive coating device of lens feeder for LED - Google Patents

Abstract

The present invention relates to an adhesive application device of a lens supply unit in which an adhesive application process is performed while a lens for LED is aligned and moved to a pick-up standby position.
That is, the present invention is connected to the feeding rail 10 to which the lens 1 for LED is supplied in alignment and accommodates the lens 1, and the pickup provided so that the lens 1 is waiting in a stopped state at one end of the pick-up standby position tray unit 100; and a dispenser unit 200 for applying adhesive to the lower surface of the lens 1 at the bottom of the pickup tray unit 100.
According to the present invention, productivity is greatly improved by simplifying the lens assembly process as the existing adhesive application process of separately applying the adhesive to the substrate or lens is omitted.

Description

Adhesive coating device of lens feeder for LED {Adhesive coating device of lens feeder for LED}

The present invention relates to an adhesive application device of a lens supplier for LED, and to explain this in more detail, it relates to an adhesive application device of a lens supplier in which an adhesive application process is performed while a lens for LED is aligned and moved to a pick-up standby position, and a lens attachment method using the same. .

In general, LED is a type of light emitting device using a semiconductor that converts electricity into light. It is small, has a long lifespan, consumes little power, and has a fast response speed. widely applied as

Here, in the surface light source module using LED as a light source, a plurality of LED elements are arranged on a PCB board, and an LED lens is placed on the upper side of the LED element to diffuse the light emitted from the LED element, but these LED lenses depend on manual work. As the assembly is performed, the work efficiency and productivity are greatly reduced, and the production cost is increased due to the increase in labor cost.

Accordingly, in Patent Registration No. 10-1575340 disclosed in the prior art, the LED lens having the convex part of the upper surface and the adhesive protrusion protruding from the lower surface and the positioning protrusion protruding from the side edge is supplied from the hopper part and transported to the pick-up position. In the lens transfer device, the lenses for LEDs supplied from the lens posture aligning unit for bringing the lenses supplied from the hopper unit into the correct posture (the correct posture with the convex surface positioned upward) are delivered, and the received lenses are arranged in a plurality of rows. A first transfer unit that aligns in a certain posture while transferring in parallel using vibration; A technique including a second transfer unit connected to the first transfer unit and transporting the lenses received in a plurality of rows from the first transfer unit to the pick-up position using a lens transfer belt has been previously proposed.

In addition, in Patent Registration No. 10-1501759, which is another prior art, a hopper unit installed on the upper part of the device body to insert a lens; a lens posture aligning unit installed in the lower portion of the hopper unit to transfer the dropped lens in a correct posture (a correct posture with the convex surface positioned upward); and a transfer unit for transporting the lens transferred from the lens posture alignment unit to a pick-up position, wherein the lens posture alignment unit includes: a lens guide duct installed under the hopper unit; a pleating unit installed at the bottom of the lens guide duct, forming a trough and a crest to guide the lens supplied from the hopper unit to the trough in a correct posture; and a first vibration generating unit installed on the main body of the device to support the lens guide duct and to generate vibration when driven, wherein the pleat unit is installed to be foldable on the bottom of the lens guide duct, and the pleat unit A technology that further includes a folding drive unit that drives the folded or unfolded bar has been pre-registered.

However, the prior art is to receive the LED lens from the hopper so that it is in the right position without being overturned and aligned in a certain posture to move to the pick-up position. When attaching, the adhesive is applied using a separate needle valve (dispenser), and then the LED element and the lens for LED are attached using a chip mount device, so productivity is greatly reduced due to diversification of work processes However, since the adhesive application part and the lens pick-up part for LED are operated independently, there were problems that caused cost burden and increased manufacturing cost due to facility construction.

KR 10-1575340 B1 (2015.11.30.) KR 10-1501759 B1 (2015.03.05.)

In the present invention, a new technology has been invented to solve all the problems of the prior art, and an adhesive application device of a lens feeder that can perform an adhesive application process on the bottom surface of the lens while the lens for LED is aligned and moved to the pick-up standby position. Provided is the problem to be solved in the invention.

As a specific means for solving the above problems of the present invention, in the present invention, the adhesive application device of the lens feeder is configured, and the lens 1 for LED is connected to the feeding rail 10 in which the lens 1 is aligned and supplied to accommodate the lens 1, , a pickup tray unit 100 provided to stand by with the lens 1 stopped at one end of the pick-up standby position; and a dispenser unit 200 for applying adhesive to the lower surface of the lens 1 at the bottom of the pickup tray unit 100.

At this time, the pickup tray unit 100 is adjacent to the rail 110 supporting the lens 1 by being in contact with a part of the bottom surface of the lens 1, and is adjacent to the rail 110 and does not contact the bottom surface of the lens 1 A non-contact chamber 120, a pair of side plates 130 that guide the lens 1 moving along the rail 110 from both sides, and the lens 1 in contact with the front of the transported lens 1. It is characterized by including a stopping block (140).

In addition, the dispenser unit 200 is installed in the non-contact chamber 120 of the pickup tray unit 100 to supply the adhesive and includes a supply pipe 240 formed to a height adjacent to the bottom surface of the lens 1 to be characterized

In addition, a nozzle groove 220 is further formed on the upper part of the supply pipe 240 to have a size larger than the inner diameter of the supply pipe 240 and to open in the transport direction of the lens 1 to determine the adhesive application width. to be

In addition, a needle 230 that moves up and down through the supply pipe 240 by the driving unit and discharges the adhesive is further included, and the needle 230 is stopped at the pick-up standby position at the top dead center. ) characterized in that the adhesive is applied to the bottom of the

In addition, the dispenser unit 200 is installed in the non-contact chamber 120 of the pickup tray unit 100, and is installed in the rotary valve 260 that rotates by the driving unit, and the rotary valve 260, so that the adhesive It includes a discharged needle 230, and when the rotary valve 260 rotates and the needle 230 is in an upward standing state, the end of the needle 230 is adjacent to the bottom surface of the lens 1, so that the adhesive is applied. to be

In attaching the lens for LED to the PCB substrate, the lens supply step of supplying the lenses 1 into the pickup tray unit 100 along the feeding rail 10; a lens standby step in which the first lens 1 in the pickup standby position is stopped by the block 140 formed in the pickup tray unit 100; a lens restraint step of contacting the mounter nozzle 300 to the top of the first lens 1 in the pick-up standby position to prevent the lens from moving; An adhesive application step of applying adhesive to the lower surface of the constrained lens 1; A lens adsorption and movement step of vacuum adsorbing the lens with the mounter nozzle 300 and moving to the lens assembly position of the PCT substrate to attach the lens; characterized in that it comprises a.

According to the specific means for solving the above problems, the present invention is structurally improved so that the adhesive application process is performed in a complex manner while the lens for LED is aligned and moved to the pick-up standby position, so that the adhesive is applied separately to the existing substrate or lens. As the process is omitted, productivity is greatly improved by simplifying the lens assembly process.

In addition, since a separate adhesive application process and equipment are unnecessary, there is an effect of significantly reducing the cost of building equipment and the manufacturing cost.

1 is a configuration diagram showing an adhesive application device of a lens supplier according to an embodiment of the present invention.
Figure 2 is a configuration diagram showing a state in which the adhesive application device of the lens feeder according to an embodiment of the present invention is directly installed on the parts feeder.
3 is an enlarged configuration diagram showing a pickup tray unit and a dispenser unit of an adhesive application device of a lens supply unit according to an embodiment of the present invention.
4 is an enlarged perspective view illustrating a pickup tray unit and a dispenser unit of an adhesive application device of a lens supply unit according to an embodiment of the present invention.
Figure 5 is a configuration diagram showing the operating state of the adhesive application device of the lens supply according to an embodiment of the present invention.
6 to 7 are configuration diagrams showing another embodiment of the dispenser unit in the adhesive application device of the lens supply device according to the present invention.
8 is a configuration diagram showing various embodiments of an intermittent feeding unit in an adhesive application device of a lens supply unit.
9 is a flow chart of a lens attachment method according to the present invention.

Hereinafter, the present invention will be described in more detail according to specific embodiments of the accompanying drawings. Technical terms used in this specification are terms selected in consideration of functions in embodiments, and the meanings of the terms may vary depending on specific embodiments of the invention. And throughout the specification, when a part is said to be "connected" to another part, this includes not only the case of being "directly connected" but also the case of being "indirectly connected" with another member in between. do.

1 is a configuration diagram showing an adhesive application device of a lens supplier according to an embodiment of the present invention, and FIG. 2 is a configuration diagram showing a state in which the adhesive application device of a lens supplier is directly installed on a parts feeder.

The present invention relates to an adhesive application device for a lens feeder, which consists of a main configuration including a pickup tray unit 100 and a dispenser unit 200 so that an adhesive application process can be performed while the lens is aligned and moved to a pick-up standby position. .

The pick-up tray unit 100 according to the present invention is connected to the end of the feeding rail 10 to which the lens 1 is aligned and supplied in the process of assembling the lens for LED to the substrate and is provided to accommodate the lens 1.

The lens 1 inserted into the pickup tray unit 100 waits for a certain period of time in a stopped state at one end of the pick-up standby position, and then is picked up and adhered by the mounter nozzle 300 that vacuums the lens 1. moved to the board

As shown in FIG. 1, the pickup tray unit 100 is connected to a parts feeder (P, vibrating feeder) by a feeding rail 10 to receive a lens 1, or as shown in FIG. It is directly connected to the rail 10 and is provided to receive the lens 1 .

3 is an enlarged view of the pickup tray unit in the adhesive application device of the lens supply unit, and the pickup tray unit 100 is in contact with a part of the lower surface of the lens 1 to support the lens 1. ), a non-contact chamber 120 that is adjacent to the rail 110 and non-contact with the lower surface of the lens 1, and a pair of side plates 130 that guide the lens 1 moving along the rail 110 from both sides and a block 140 that stops the lens 1 by being in contact with the front surface of the transported lens 1 .

In the pickup tray unit 100, a pickup waiting room in which the lens 1 is accommodated is formed by a rail 110, a pair of side plates 130, and a block 140, and the upper portion of the pickup waiting room is opened to allow the lens 1 is provided to be picked up upward by the mounter nozzle 300.

At this time, as the lens 1 is moved by the rail 110 in a state in which the center area of the bottom surface is in local surface contact, both edges of the bottom surface of the lens 1 are moved with the pickup tray unit 100 by the non-contact chamber 120. It is provided so that the adhesive (B) is applied by the dispenser unit 200 to be described later while being maintained in a non-contact state.

Although not shown, the rail 110 may be configured to support both sides of the lens 1 instead of supporting the center of the lower surface of the lens 1, and in this case, the non-contact chamber 120 is between the two rails 110. can be formed

4 is an enlarged perspective view showing a pickup tray unit and a dispenser unit of the adhesive application device of the lens supplier according to an embodiment of the present invention, and FIG. 5 is a configuration diagram showing an operating state of the adhesive application device of the lens supplier.

The dispenser unit 200 according to the present invention is provided to apply adhesive to a part of the lower surface of the lens 1 at the bottom of the pickup tray unit 100 .

To supply the adhesive, the dispenser unit 200 is installed in the non-contact chamber 120 of the pickup tray unit 100 and has a supply pipe 240 formed up to a height adjacent to the bottom surface of the lens 1.

A tube connected to a metering pump is installed below the supply pipe 240 to receive a metered amount of the adhesive from the tank containing the adhesive, and the adhesive application time is controlled by the control unit.

In addition, a nozzle groove 220 having a size larger than the inner diameter of the supply pipe 240 and opening in the transport direction of the lens 1 to determine the adhesive application width may be further formed on the upper part of the supply pipe 240. there is.

That is, the supply pipe 240 is disposed at a lower position than the rail 110 and is spaced apart from the lower surface of the lens 1 in a non-contact state, and a nozzle groove 220 in which an adhesive is temporarily accommodated is formed on the upper surface of the supply pipe 240. do.

At this time, the upper part of the nozzle groove 220 has a 'U' shape in longitudinal section, and the adhesive supplied through the supply pipe 240 is filled in the nozzle groove 220 as shown in FIG. 5 and moves along the rail 110. It is applied to the bottom edge of the lens 1 to be.

In addition, the thickness and width of the adhesive supplied through the supply pipe 240 may be determined by the width and depth of the nozzle groove 220 .

Meanwhile, the supply pipe 240 is formed integrally with the bottom of the non-contact chamber 120 of the pickup tray unit 100 or formed as a separate part from the pickup tray unit 100 to be bolted to the bottom of the non-contact chamber 120. may be provided. In addition, when the supply pipe 240 is provided to be replaceable, partial maintenance due to damage or contamination during use is possible, and the nozzle groove 220 of an appropriate size according to the working conditions including the thickness and width of adhesive application It is provided to flexibly respond to various working environments by using the formed supply pipe 240 interchangeably.

In addition, a cover 150 is installed on an upper portion corresponding to the second lens 1 among the 1 to N lenses 1 waiting to be aligned by the block 140 of the pickup tray unit 100 .

As the cover 150 is provided to restrain the second lens 1 from the top while the first lens 1 is upwardly picked up, as shown in FIG. Inadequate feeding that is overturned or separated due to frictional interference (eg, jamming by a burr) is prevented.

6 to 7 show another embodiment of the dispenser unit 200 in the adhesive application device of the lens supply device according to the present invention.

First, referring to FIG. 6 , the dispenser unit 200 moves up and down through the supply pipe 240 by the driving unit, and further includes a needle 230 at an end of which the adhesive is discharged, and the needle 230 is a metering pump. It is connected to and the adhesive application time is controlled by the control unit.

The needle 230 linearly reciprocates in an up and down direction by a driving unit including a cylinder, a rack and pinion, and a screw.

A cleaning member 250 may be installed under the supply pipe 240, and may be composed of at least one of a cleaning hair, a nozzle spraying an adhesive dissolving agent, and a nozzle spraying compressed air.

Accordingly, while the needle 230 moves in a straight line, foreign matter attached to the outer circumferential surface of the needle 230 is cleaned (removed) while passing through the cleaning member 250, and this cleaning process is repeated at a cycle set by the control unit. This has the advantage of continuous operation without clogging the needle 230 for a long time.

Referring to FIG. 7 , the dispenser unit 200 is installed in the non-contact chamber 120 of the pickup tray unit 100 and is rotated by a driving unit. When the rotary valve 260 rotates and the needle 230 is in an upward standing state, the end of the needle 230 is adjacent to the bottom surface of the lens 1 to apply the adhesive. do.

At this time, a turning space part 270 is formed inside the pickup tray part 100 and the dispenser part 200 corresponding to the rotation radius of the needle 230, and the cleaning member 250 is formed on the inner circumferential surface of the turning space part 270. ) can be installed.

Accordingly, as the tip of the needle 230 is provided to be cleaned while passing through the cleaning member 250 while the needle 230 rotates, the needle 230 can be continuously operated without clogging for a long time, and the adhesive application accuracy is improved. has the advantage of being uniform.

8 is a configuration diagram illustrating various embodiments of an intermittent feeding unit in an adhesive application device of a lens supply unit.

The second lens 1 among the 1 to N lenses waiting to be aligned by the block 140 of the pickup tray unit 100 is put in after the first lens 1 is picked up. ) An intermittent feeding unit 160 may be further formed on the upper side of the driving unit to physically contact the second lens and limit the movement of the second lens 1 .

In FIG. 8 (a), the intermittent feeding unit 160 is formed of a blocking plate 162 linearly transported by a driving unit. The blocking plate 162 enters between the first lens 1 and the second lens 1 and is provided to intermittently stop the movement of the second lens 1 .

After the first lens 1 is picked up, the blocking plate 162 is moved upward to allow the second lens 1 to enter.

In FIG. 8 (b), the intermittent feeding unit 160 is formed of a blocking block 164 linearly transported by a driving unit. The blocking block 164 is formed of an elastic body and is provided to press the upper surface of the second lens 1, and the movement of the second lens 1 is temporarily stopped by the pressing force of the blocking block 164.

In FIG. 8 (c), the intermittent feeding unit 160 is formed of a plurality of rotary blades 166 that are rotated at regular intervals by the driving unit. The rotating blade 166 is formed of an elastic piece, and is provided so that the movement of the second lens 1 is stopped by the rotating blade 166 . After the first lens 1 is picked up, the rotary blades 166 are rotated at an equal angle to intermittently allow the second lens 1 to enter.

As such, the lens 1 continuously supplied along the feeding rail 10 is controlled so that the second lens 1 is input after the first lens 1 is picked up by the intermittent feeding unit 160, so that the first lens There is an advantage in preventing feeding failure in which the second lens 1 is overturned or detached to the outside due to frictional interference with the first lens during upward pickup of (1).

Methods in which the adhesive is applied to the lower surface of the lens 1 by the adhesive application device of the lens supply configured as described above can be largely classified into two types.

First, as shown in FIG. 5, when the supply pipe 240 of the dispenser unit 200 is located between the center of the first lens 1 in the pick-up standby position and the center of the second lens 1 located behind it, After the adhesive is supplied from the end of the supply pipe 240, the second lens is moved along the rail 110 to the position of the first lens picked up by the mounter nozzle 300, and the adhesive is also applied to the bottom of the lens 1. can be made with

Second, when the supply pipe 240 is located below the No. 1 lens 1 in the pick-up standby position, the dispenser unit 200 may directly apply adhesive to the lower surface of the lens 1.

9 is a flow chart schematically illustrating a method of attaching a lens to a CB substrate using an adhesive application device of a lens supplier for LED in the second embodiment, which will be described in more detail below.

(1) lens supply step;

The lenses 1 are sequentially supplied into the pickup tray unit 100 on the feeding rail 10 connected to the parts feeder P.

(2) lens standby step;

By the block 140 formed in the pickup tray unit 100, the No. 1 lens 1 at the pick-up stand-by position stands by in a stopped state.

(3) lens restraint step;

Press the upper part of the lens 1 with the mounter nozzle 300 to restrain it from moving.

Since the lens 1 is very light, the lens can easily flow due to the transport force of the lens continuously supplied from the rear or the adhesive supplied from the dispenser below the lens, and this is a step to prevent feeding failure.

(4) adhesive application step;

In the step of applying the adhesive to the lower surface of the lens by the dispenser unit, since the lens is constrained by the mounter nozzle, stable application of the adhesive is achieved.

(5) lens adsorption and movement step;

After the lens is vacuum adsorbed by the mounter nozzle 300, it is moved to a preset lens assembly position on the PCT substrate and the lens is attached.

According to the lens attachment method of the present invention made as described above, since the adhesive can be applied during the process of moving the lens to the pickup tray and being picked up by the mounter nozzle, productivity can be significantly improved by omitting a separate adhesive application process. In addition, since the adhesive is stably applied to the lower surface of the lens, there is an effect of preventing poor feeding or poor assembly on the substrate.

As described above, the most preferred embodiment of the present invention has been described in the detailed description of the present invention, but various modifications may be made within a range that does not depart from the technical scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the above embodiments, but the scope of protection should be recognized from the techniques of the claims to be described later and from these techniques to equivalent technical means.

1: lens 10: feeding rail
100: pickup tray unit
110: rail 120: non-contact room 130: side plate
140: block 150: cover 160: intermittent feeding unit
162: blocking plate 164: blocking block 166: rotary blade
200: dispenser unit
220: nozzle groove 230: needle 240: supply pipe
250: cleaning member 260: rotary valve 270: turning space
B: adhesive P: parts feeder

Claims (9)

A pickup tray unit 100 connected to the feeding rail 10 where the lenses 1 for LEDs are aligned and supplied to accommodate the lenses 1, and provided so that the lenses 1 stand by in a stopped state at one end of the pick-up standby position ; and
A dispenser unit 200 for applying adhesive to the lower surface of the lens 1 at the bottom of the pickup tray unit 100;
The pickup tray unit 100,
A rail 110 in contact with a part of the bottom surface of the lens 1 to support the lens 1, a non-contact chamber 120 adjacent to the rail 110 and non-contacting the bottom surface of the lens 1, and a rail 110 It includes a side plate 130 that guides the lens 1 moving along the side from the side, and a block 140 that stops the lens 1 by contacting the front surface of the lens 1 being transported,
The dispenser unit 200,
A supply pipe 240 installed in the non-contact chamber 120 of the pickup tray unit 100 to supply adhesive and formed to a height adjacent to the bottom surface of the lens 1, and a supply pipe 240 on the top of the supply pipe 240 Formed to a size larger than the inner diameter of the lens 1, the adhesive application device of the lens feeder characterized in that it further comprises a nozzle groove 220 that is opened in the transport direction to determine the adhesive application width.
A pickup tray unit 100 connected to the feeding rail 10 where the lenses 1 for LEDs are aligned and supplied to accommodate the lenses 1, and provided so that the lenses 1 stand by in a stopped state at one end of the pick-up standby position ; and
A dispenser unit 200 for applying adhesive to the lower surface of the lens 1 at the bottom of the pickup tray unit 100;
The pickup tray unit 100,
A rail 110 in contact with a part of the bottom surface of the lens 1 to support the lens 1, a non-contact chamber 120 adjacent to the rail 110 and non-contacting the bottom surface of the lens 1, and a rail 110 It includes a side plate 130 that guides the lens 1 moved along the side from the side, and a block 140 that stops the lens 1 by contacting the front surface of the lens 1 being transported,
The dispenser unit 200,
It includes a rotary valve 260 installed in the non-contact chamber 120 of the pickup tray unit 100 and rotated by a driving unit, and a needle 230 installed in the rotary valve 260 to discharge adhesive, When the rotary valve 260 rotates and the needle 230 is in an upward standing state, the end of the needle 230 is adjacent to the bottom surface of the lens 1 so that the adhesive is applied.
According to claim 1,
A needle 230 that passes through the supply pipe 240 by the drive unit and moves up and down and discharges the adhesive is provided.
The needle 230 is an adhesive application device of a lens supply, characterized in that for applying the adhesive to the lower surface of the lens (1) waiting in a state of being stopped at the pick-up standby position at the top dead center.
According to claim 1 or 2,
A cover 150 is installed on the upper part corresponding to the second lens 1 among the 1 to N lenses 1 waiting to be aligned by the block 140 of the pickup tray unit 100, and the cover 150 is an adhesive application device of a lens supply unit, characterized in that provided to restrain the second lens (1) from the top while the first lens (1) is picked up upward.
According to claim 1 or 2,
The second lens 1 is moved after the first lens 1 is picked up among the 1 to N lenses waiting to be aligned by the block 140 of the pickup tray unit 100. ) On the upper side of the lens supply unit, characterized in that the intermittent feeding unit 160 is formed in physical contact with the second lens by the driving unit to limit the movement of the second lens (1).
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