CSP online intelligent sealing machine

By designing CSP online intelligent adhesive sealing machine in LED packaging technology, using three-axis robots, glue visual mechanisms and feeding mechanisms, the problems of positioning accuracy and glue stability are solved, and the efficient LED packaging process is achieved to avoid The glue breakage phenomenon.

CN113421840BInactive Publication Date: 2024-12-20SHENZHEN GRANDSEED TECH DEV CO LTD
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Patent Information

Application Number
CN202110758348.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-07-05
Publication Date
2024-12-20
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the existing LED packaging technology, there are problems such as poor positioning accuracy and unstable glue injection, which are prone to glue breakage.

Method used

A CSP online intelligent glue sealing machine is designed, including a three-axis robot, glue-picking mechanism, adsorption mechanism, feeding mechanism and glue-picking visual mechanism. Through these structures, high-precision positioning and continuous glue-picking are achieved to avoid glue breakage. Specific measures include using a CCD camera for positioning correction, double-row glue valve to achieve continuous glue, feeding mechanism to achieve continuous feed through stepper motor and conveying wheel, and adsorption mechanism to fix LED light strips using high-pressure vortex fans or vacuum pumps.

Benefits of technology

It achieves high positioning accuracy and strong stability, avoids glue breakage, and improves the quality and efficiency of LED packaging.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a CSP online intelligent glue sealing machine, which belongs to the field of glue sealing machines, and includes a frame, a three-axis manipulator, a glue mechanism, a glue barrel, an adsorption mechanism, a feeding mechanism and a glue vision mechanism. The frame plays a supporting role, the three-axis manipulator is fixed on one side of the top surface of the frame, the glue mechanism is fixed on the outer side surface of the three-axis manipulator, the glue barrel is fixed on both sides of the three-axis manipulator, the adsorption mechanism is fixed directly below the glue mechanism, the feeding mechanism is fixed on one side of the adsorption mechanism, the glue vision mechanism is fixed on the bottom end of the outer side surface of the glue mechanism, and the feeding mechanism includes two parallel first support plates, and the first support plate is fixed on one side of the top surface of the frame. The present invention, through a series of structures, not only simplifies the equipment structure and improves the stability of the equipment operation, but also can reduce the jitter of the equipment when it runs at high speed and improve the precision of solid crystal.
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Description

Technical Field

[0001] The invention relates to a glue sealing machine, in particular to a CSP online intelligent glue sealing machine. Background Art

[0002] With the rapid development of economy and the continuous progress of society, energy conservation, emission reduction and efficiency improvement have become the inevitable trend of global development, and there is a broad consensus in society. Various electrical appliances are increasingly developing in the direction of energy saving, easy use, space saving, safety and efficiency, and multi-functionality. LED should be extremely widespread in today's society, and there is a lot of room for energy saving.

[0003] CSP packaging is the cutting-edge technology of current LED production. It refers to a packaging technology in which the size of the package itself does not exceed 20% of the size of the chip itself. As an indispensable equipment in the LED production process, the sealing machine is an automated equipment that controls and drips and applies adhesives and other coatings on the surface of the product. It uses compressed air to send the coating into the glue supply hose, and then through program control, the coating is dripped or applied according to the pre-set path.

[0004] The prior art has the following problems: poor positioning accuracy, instability, and easy glue breakage during glue application. Therefore, those skilled in the art provide a CSP online intelligent glue sealing machine to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a CSP online intelligent sealing machine, which, through a series of structures, not only has the characteristics of high positioning accuracy and strong stability, but also achieves the effect of continuous gluing without glue breaking, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The CSP online intelligent sealing machine includes a frame, a three-axis manipulator, a glue mechanism, a glue barrel, an adsorption mechanism, a feeding mechanism and a glue vision mechanism. The frame plays a supporting role, the three-axis manipulator is fixed on one side of the top surface of the frame, the glue mechanism is fixed on the outer side of the three-axis manipulator, the glue barrel is fixed on both sides of the three-axis manipulator, the adsorption mechanism is fixed directly below the glue mechanism, the feeding mechanism is fixed on one side of the adsorption mechanism, and the glue vision mechanism is fixed on the bottom of the outer side of the glue mechanism. By setting up a series of structures, not only the equipment structure is simplified and the stability of the equipment operation is improved, but also the jitter of the equipment during high-speed operation can be reduced and the precision of solid crystal can be improved.

[0008] As a further solution of the present invention: the feeding mechanism includes two parallel first support plates, and the first support plates are fixed on one side of the top surface of the frame, the top of the first support plate is fixedly connected to the first workbench, and a conveying groove is opened in the middle position of the top surface of the first workbench, baffles are provided on both sides of the conveying groove, the bottom surface of the first workbench is fixedly connected to a stepper motor, and the output end of the stepper motor is connected to an active conveying wheel, the top end of the active conveying wheel protrudes from the notch opened on the top surface of the conveying groove, and a driven conveying wheel is movably connected above the notch, and adjusting screws are movably connected to the two side surfaces of the first workbench.

[0009] When in use, first put the LED light strip into the conveying groove of the first workbench, then the driven conveying wheel presses the light strip against the active conveying wheel, start the stepper motor to drive the active conveying wheel to rotate, and then the active conveying wheel and the driven conveying wheel clamp the LED light strip and drag it forward. A spring is connected to the tail of the driven conveying wheel to buffer the clamping force of the LED light strip. The clamping force of the light strip can be adjusted by moving the position of the adjusting screw.

[0010] As a further solution of the present invention: the adsorption mechanism includes two parallel second support plates, and the second support plates are fixed in the middle position of the top surface of the frame, the top of the second support plate is fixedly connected to the second workbench, and the second workbench is located directly below the gluing mechanism, a plurality of array-distributed suction holes are provided on one side of the top surface of the second workbench, and both sides of the suction holes are fixedly connected with ribs, and the other side of the top surface of the second workbench is movably connected with a belt pressure wheel.

[0011] When in use, first, the feeding mechanism transports the LED light strip to the second workbench of the adsorption mechanism. At this time, the ribs limit the positions of both sides of the LED light strip, and the LED light strip moves to above the suction hole, wherein the suction hole is connected to the external high-pressure vortex fan or vacuum pump through a pipeline, so that the LED light strip is firmly adsorbed above the suction hole, and one end of the LED light strip is pressed by the belt pressure wheel.

[0012] As a further scheme of the present invention: the glue mechanism includes a mounting plate, and the mounting plate is fixed on the output end of the three-axis manipulator, the top of the mounting plate is fixedly connected to two parallel glue stepping motors, and the output end of the glue stepping motor is connected to a lead screw, the outer side surface of the lead screw is threadedly connected to a lifting seat, and the bottom end of the lifting seat is fixedly connected to a plurality of plunger rods, the plunger rods under the two lifting seats are movably inserted in the double-row valve body, and one side of the double-row valve body is fixedly connected to a glue injection nozzle, the glue injection nozzle is connected to the glue barrel through a hose, the other side of the double-row valve body is provided with a valve core switch, and the bottom end of the double-row valve body is fixedly connected to a glue injection head mounting plate, the bottom end of the glue injection head mounting plate is detachably fixedly connected to the glue injection head, and the glue injection head is connected to the inside of the double-row valve body, and the bottom end of the mounting plate is fixedly connected to a reversing cylinder.

[0013] When in use, first, the two gluing stepper motors run, driving the lead screw to rotate, and the lifting seat to rise and fall. The two lifting seats are staggered and lifted, one falls while the other rises, and one rises while the other falls. The lifting seat drives the plunger rod to rise and fall, and the plunger rod presses the glue in the double-row valve body into the glue injection head on the glue injection head mounting plate, and the glue injection head passes glue to glue the LED light strip.

[0014] As a further solution of the present invention: the gluing visual mechanism includes a CCD camera bracket fixed on the outer side of the gluing mechanism, and a CCD camera is fixedly connected to one side of the CCD camera bracket, and one end of the CCD camera is fixedly connected to a CCD light source.

[0015] The CCD camera captures the chips on the light strip. During the process, the CCD light source automatically adjusts the brightness of the light source as needed, and finally determines the position of the glue mechanism. Once an offset occurs, the three-axis robot will correct it in time.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The CCD camera automatically captures the chip on the LED light strip, so that the glue is always applied on the chip. Once there is a deviation, the longitudinal axis of the three-axis manipulator will correct it in time, making the device have the characteristics of high positioning accuracy and strong stability.

[0018] 2. The double-row glue valve can glue the left plunger rod while injecting glue into the right plunger rod. The two rows of plunger rods move back and forth crosswise. When the glue in the left valve body is finished, continue to glue the right valve body, and inject glue into the left valve body at the same time, so as to realize continuous glueing of the glue valve.

[0019] 3. The feeding mechanism drives the active conveying wheel through the stepping motor to realize continuous feeding. The LED light strip is fixed on the suction hole of the adsorption mechanism under the suction force of the high-pressure vortex fan or vacuum pump, and the ribs and pressure wheels at both ends of the adsorption mechanism are roughly positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the CSP online intelligent sealing machine;

[0021] Figure 2 It is a structural diagram of the feeding mechanism in the CSP online intelligent sealing machine;

[0022] Figure 3 It is a structural diagram of the adsorption mechanism in the CSP online intelligent sealing machine;

[0023] Figure 4 This is a schematic diagram of the structure of the glue-spraying mechanism in the CSP online intelligent glue-sealing machine;

[0024] Figure 5 This is a structural diagram of the glue vision mechanism in the CSP online intelligent sealing machine.

[0025] In the figure: 1, frame; 2, three-axis manipulator; 3, glue-spraying mechanism; 301, mounting plate; 302, glue-spraying stepping motor; 303, lead screw; 304, plunger rod; 305, reversing cylinder; 306, double-row valve body; 307, valve core switch; 308, glue injection nozzle; 309, glue injection head mounting plate; 4, glue-spraying barrel; 5, adsorption mechanism; 501, second support plate; 502, second workbench; 503, retaining edge; 504, belt suction hole; 505, belt pressure wheel; 6, feeding mechanism; 601, first support plate; 602, first workbench; 603, conveying trough; 604, baffle; 605, stepping motor; 606, active conveying wheel; 607, notch; 608, driven conveying wheel; 609, adjusting screw; 7, gluing visual mechanism; 701, CCD camera bracket; 702, CCD camera; 703, CCD light source. DETAILED DESCRIPTION

[0026] See also Figures 1 to 5 In the embodiment of the present invention, the CSP online intelligent sealing machine includes a frame 1, a three-axis manipulator 2, a glue mechanism 3, a glue barrel 4, an adsorption mechanism 5, a feeding mechanism 6 and a glue visual mechanism 7. The frame 1 plays a supporting role, the three-axis manipulator 2 is fixed on one side of the top surface of the frame 1, the glue mechanism 3 is fixed on the outer side of the three-axis manipulator 2, the glue barrel 4 is fixed on both sides of the three-axis manipulator 2, the adsorption mechanism 5 is fixed directly below the glue mechanism 3, the feeding mechanism 6 is fixed on one side of the adsorption mechanism 5, and the glue visual mechanism 7 is fixed at the bottom end of the outer side of the glue mechanism 3. By setting up a series of structures, not only the equipment structure is simplified and the stability of the equipment operation is improved, but also the jitter of the equipment during high-speed operation can be reduced, and the precision of the solid crystal can be improved.

[0027] exist Figure 2Middle: The feeding mechanism 6 includes two parallel first support plates 601, and the first support plates 601 are fixed on one side of the top surface of the frame 1, the top of the first support plate 601 is fixedly connected to the first workbench 602, and a conveying groove 603 is opened in the middle position of the top surface of the first workbench 602, and baffles 604 are provided on both sides of the conveying groove 603, the bottom surface of the first workbench 602 is fixedly connected to a stepper motor 605, and the output end of the stepper motor 605 is connected to an active conveying wheel 606, the top of the active conveying wheel 606 protrudes from a notch 607 opened on the top surface of the conveying groove 603, and a driven conveying wheel 608 is movably connected above the notch 607, and the two side surfaces of the first workbench 602 are movably connected to adjusting screws 609. When in use, first put the LED light strip into the conveying groove 603 of the first workbench 602, then the driven conveying wheel 608 presses the light strip against the active conveying wheel 606, and the stepper motor 605 is started to drive the active conveying wheel 606 to rotate, and then the active conveying wheel 606 and the driven conveying wheel 608 clamp the LED light strip and drag it forward. The tail of the driven conveying wheel 608 is connected with a spring so that the clamping force of the LED light strip can be buffered. The clamping force of the light strip can be adjusted by moving the position of the adjusting screw 609.

[0028] exist Figure 3 Middle: The adsorption mechanism 5 includes two parallel second support plates 501, and the second support plate 501 is fixed at the middle position of the top surface of the frame 1, the top of the second support plate 501 is fixedly connected with the second workbench 502, and the second workbench 502 is located directly below the glue-applying mechanism 3, and one side of the top surface of the second workbench 502 is provided with a plurality of array-distributed suction holes 504, and both sides of the suction holes 504 are fixedly connected with retaining edges 503, and the other side of the top surface of the second workbench 502 is movably connected with a belt-pressing wheel 505. When in use, first, the feeding mechanism 6 conveys the LED light strip to the second workbench 502 of the adsorption mechanism 5, at which time, the retaining edges 503 limit the positions of both sides of the LED light strip, and the LED light strip moves to the top of the suction hole 504, wherein the suction hole 504 is connected to the external high-pressure vortex fan or vacuum pump through a pipeline, so that the LED light strip is firmly adsorbed above the suction hole 504, and one end of the LED light strip is pressed by the belt-pressing wheel 505.

[0029] exist Figure 4Middle: The glue mechanism 3 includes a mounting plate 301, and the mounting plate 301 is fixed to the output end of the three-axis manipulator 2. The top of the mounting plate 301 is fixedly connected to two parallel glue stepping motors 302, and the output end of the glue stepping motor 302 is connected to a lead screw 303. The outer side of the lead screw 303 is threadedly connected to a lifting seat, and the bottom of the lifting seat is fixedly connected to a plurality of plunger rods 304. The plunger rods 304 under the two lifting seats are movably plugged into the inside of the double-row valve body 306. , and a glue injection nozzle 308 is fixedly connected to one side of the double-row valve body 306, and the glue injection nozzle 308 is connected to the glue barrel 4 through a hose. A valve core switch 307 is provided on the other side of the double-row valve body 306, and a glue injection head mounting plate 309 is fixedly connected to the bottom end of the double-row valve body 306. The glue injection head is detachably fixedly connected to the bottom end of the glue injection head mounting plate 309, and the glue injection head is connected to the inside of the double-row valve body 306. The bottom end of the mounting plate 301 is fixedly connected to the reversing cylinder 305. When in use, first, the two glue stepping motors 302 are operated to drive the lead screw 303 to rotate, and the lifting seat is lifted and lowered. The two lifting seats are staggered and lifted, one descends and the other rises, and one rises and the other descends. The lifting seat drives the plunger rod 304 to lift and lower, and the plunger rod 304 presses the glue in the double-row valve body 306 into the glue injection head on the glue injection head mounting plate 309, and the glue injection head passes the glue to glue the LED light strip.

[0030] exist Figure 5 Middle: The glue-applying visual mechanism 7 includes a CCD camera bracket 701 fixed on the outer side of the glue-applying mechanism 3, and a CCD camera 702 is fixedly connected to one side of the CCD camera bracket 701, and a CCD light source 703 is fixedly connected to one end of the CCD camera 702. The CCD camera 702 captures the wafers on the light strip. During the process, the CCD light source 703 automatically adjusts the light source brightness as needed, and finally determines the position of the glue-applying mechanism 3. Once a deviation occurs, the three-axis manipulator 2 will act to correct it in time.

[0031] Working principle: When in use, first, the LED light strip is introduced into the feeding mechanism 6, specifically: first, the LED light strip is placed in the conveying groove 603 of the first workbench 602, wherein the baffle 604 limits the position of the two sides of the LED light strip. Then, the driven conveying wheel 608 presses the light strip against the active conveying wheel 606, and the stepper motor 605 is started to drive the active conveying wheel 606 to rotate, and then the active conveying wheel 606 and the driven conveying wheel 608 clamp the LED light strip and drag it forward. The tail of the driven conveying wheel 608 is connected with a spring so that the clamping force of the LED light strip can be buffered. By moving the position of the adjusting screw 609, the clamping force of the light strip can be adjusted.

[0032] Subsequently, the light strip is introduced onto the second workbench 502 of the adsorption mechanism 5. At this time, the retaining edge 503 limits the position of both sides of the LED light strip, and the LED light strip moves above the suction hole 504, wherein the suction hole 504 is connected to the external high-pressure vortex fan or vacuum pump through a pipeline, so that the LED light strip is firmly adsorbed above the suction hole 504, and one end of the LED light strip is pressed by the pressure wheel 505.

[0033] Finally, the glue applying mechanism 3 applies glue to the fixed light strip, specifically: first, the two glue applying stepper motors 302 are operated, driving the lead screw 303 to rotate, and the lifting seat is lifted and lowered, and the two lifting seats are lifted and lowered in a staggered manner, one descends while the other rises, and one rises while the other descends, and the lifting seat drives the plunger rod 304 to lift and lower, and the plunger rod 304 presses the glue in the double-row valve body 306 into the glue injection head on the glue injection head mounting plate 309, and the glue injection head passes the glue to apply glue to the LED light strip. Among them, the glue in the double-row valve body 306 is the glue from the glue barrel 4 that flows in through the hose and the glue injection nozzle 308. In addition, during the disturbing process, the CCD camera 702 captures the chips on the light strip. During the process, the CCD light source 703 automatically adjusts the light source brightness as needed, and finally determines the position of the glue applying mechanism 3. Once an offset occurs, the three-axis manipulator 2 will correct it in time.

[0034] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1.CSP online intelligent sealing machine, It is characterized in that include: The frame plays a supporting role; A three-axis manipulator is fixed on one side of the top surface of the frame; The gluing mechanism is fixed on the outer side of the three-axis manipulator; The glue barrel is fixed on both sides of the three-axis robot; The adsorption mechanism is fixed just below the gluing mechanism; The feeding mechanism is fixed on one side of the adsorption mechanism; The gluing visual mechanism is fixed at the bottom end of the outer side surface of the gluing mechanism; The feeding mechanism comprises two parallel first support plates, and the first support plates are fixed on one side of the top surface of the frame, the top of the first support plate is fixedly connected to the first workbench, and a conveying groove is provided in the middle position of the top surface of the first workbench, and baffles are provided on both sides of the conveying groove, the bottom end surface of the first workbench is fixedly connected to a stepping motor, and the output end of the stepping motor is connected to an active conveying wheel, the top end of the active conveying wheel protrudes from the notch provided on the top surface of the conveying groove, and a driven conveying wheel is movably connected above the notch, and adjusting screws are movably connected to the two side surfaces of the first workbench; the adsorption mechanism comprises two parallel second support plates, and the second support plate is fixed at the middle position of the top surface of the frame, the top end of the second support plate is fixedly connected to the second workbench, and the second workbench is located directly below the gluing mechanism, a plurality of array-distributed suction belt holes are provided on one side of the top surface of the second workbench, and baffles are fixedly connected on both sides of the suction belt holes, and a pressing belt is movably connected to the other side of the top surface of the second workbench Wheel; the glue mechanism includes a mounting plate, and the mounting plate is fixed to the output end of the three-axis manipulator, the top of the mounting plate is fixedly connected to two parallel glue stepping motors, and the output end of the glue stepping motor is connected to a lead screw, the outer side surface of the lead screw is threadedly connected to a lifting seat, and the bottom end of the lifting seat is fixedly connected to multiple plunger rods, the plunger rods under the two lifting seats are movably inserted into the double-row valve body, and one side of the double-row valve body is fixedly connected to a glue injection nozzle, the glue injection nozzle is connected to the glue barrel through a hose, the other side of the double-row valve body is provided with a valve core switch, and the bottom end of the double-row valve body is fixedly connected to a glue injection head mounting plate, the bottom end of the glue injection head mounting plate is detachably fixedly connected to a glue injection head, and the glue injection head is connected to the inside of the double-row valve body, and the bottom end of the mounting plate is fixedly connected to a reversing cylinder; the glue visual mechanism includes a CCD camera bracket fixed to the outer side of the glue mechanism, and one side of the CCD camera bracket is fixedly connected to a CCD camera, and one end of the CCD camera is fixedly connected to a CCD light source.