Automatic glue dispenser for illuminating lamp production

Abstract

The invention relates to the technical field of lamp processing equipment, and discloses an automatic dispensing machine for lighting lamp production, which comprises a base, a stepping turntable is arranged on one side of the middle part of the top end of the base, and the stepping turntable is used for carrying out 90-degree position adjustment on a lighting lamp substrate each time; four positioning grooves are formed in the stepping rotary table in a circumferential array mode and used for feeding positioning, substrate dispensing, lamp bead shaping and discharging treatment of an illuminating lamp substrate. By adding and arranging the drying and shaping mechanism, different from traditional hot air drying surface conduction heating, the mechanism stimulates polar molecules in glue to vibrate at high frequency through microwaves after the illuminating lamp substrate is subjected to dispensing processing, endogenous heating from the interior to the surface is achieved, the drying time is greatly shortened, the production efficiency is remarkably improved, and meanwhile, the product quality is improved. The precise design of the resonant cavity ensures that each part of the glue layer is uniformly heated, and the problems of glue carbonization, bubble residue and the like caused by local overheating are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of lamp processing equipment, in particular to an automatic glue dispensing machine for producing lighting lamps. Background Art

[0002] Glue dispensing for LED lighting is a critical process for ensuring product quality and performance. Dispensing equipment precisely applies a specific glue to LED chips, pins, or substrates, securing the chip, electrically connecting the LEDs, and protecting them from moisture, dust, and shock. For example, thermally conductive adhesive quickly conducts heat, preventing LED light decay due to high temperatures; potting adhesive improves the sealing and insulation of lamps. With technological advances, glue dispensing has evolved from a manual operation to an automated, intelligent process. High-precision dispensing heads and vision-based positioning systems ensure uniform glue application and precise placement, effectively improving the stability and lifespan of LED lamps and helping lighting products meet diverse application needs.

[0003] In the dispensing process of LED lighting lamps, it is important to precisely control the amount of glue according to the size of the lamp beads to achieve micro-dispensing. Currently, most glue guns in the industry rely on air pressure to control the amount of glue, and work together with pressure sensors and flow sensors. However, this traditional control mode has significant drawbacks: on the one hand, the control accuracy is poor, making it difficult to meet the micro-dispensing needs at the picoliter level; on the other hand, the air pressure-controlled dispensing response is slow, and when multiple micro-dispensing operations are performed in a short period of time, timely adjustments cannot be made, which seriously affects production efficiency and product quality. It is difficult to adapt to the high-precision, high-speed production requirements of modern LED lighting. Therefore, those skilled in the art have proposed an automated dispensing machine for lighting lamp production to solve the above-mentioned technical problems. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides an automated glue dispensing machine for lighting lamp production, which solves the problem that the existing air pressure-controlled glue dispensing method cannot achieve multiple micro-dispensing in a short period of time.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic dispensing machine for lighting lamp production, comprising

[0006] The base has a stepping turntable on one side of the middle of the top, which is used to adjust the position of the lighting base plate by 90 degrees each time;

[0007] There are four positioning slots in the circular array on the stepping turntable, which are used for loading and positioning of lighting substrates, dispensing of substrates, shaping of lamp beads, and unloading.

[0008] An inspection door is provided at the lower middle part of one side of the base.

[0009] A micro-dispensing mechanism is provided at the middle of one side of the top of the base, and is used for micro-dispensing the substrate of the lighting lamp;

[0010] The glue switching mechanism is provided on one side of the top of the base and is used to switch the glue during the dispensing process of the lighting lamp substrate;

[0011] An auxiliary dispensing mechanism is provided on one side of the top of the base and is used to assist in the dispensing process of the lighting lamp substrate;

[0012] The drying and shaping mechanism is arranged inside the stepping turntable and is used to dry and shape the lighting lamp substrate and the lamp beads on the upper part after the dispensing process is completed.

[0013] Preferably, the micro-dispensing mechanism includes a mounting seat, a Z-axis moving module is provided on one side of the mounting seat, an insulation sleeve is provided on the side of the Z-axis moving module away from the middle of the mounting seat, a glue box is provided inside the insulation sleeve, and a glue outlet nozzle is provided on the bottom side of the glue box.

[0014] Preferably, the micro-dispensing mechanism also includes piezoelectric ceramics, and piezoelectric ceramics are arranged in the lower middle part of one side of the glue box, and the interior of the piezoelectric ceramics is connected to the dispensing piston, and a side seat is arranged in the middle part of one side of the Z-axis moving module, a voltage amplifier is arranged on one side of the middle part of the side seat, and a control receiver is arranged on the other side of the middle part of the side seat.

[0015] Preferably, the micro-dispensing mechanism also includes a conical guide cavity, a plurality of conical guide cavities are equidistantly arranged inside the glue outlet nozzle, the conical guide cavity forms a plurality of microchannels inside the glue outlet nozzle, a plurality of stacked flow limiting diaphragms are equidistantly and staggeredly arranged inside the conical guide cavity, and a glue discharge hole is opened in the middle of the stacked flow limiting diaphragms, the aperture of the glue discharge hole decreases layer by layer from top to bottom, and a nano-coating is provided on the inner wall of the conical guide cavity.

[0016] Preferably, the glue switching mechanism includes an inner cavity, an inner cavity is opened in the upper middle part of the inner side of the glue box, a glue storage cylinder is rotatably connected inside the inner cavity, a plurality of separation chambers are equidistantly opened inside the glue storage cylinder, and the separation chambers are used to store different types of glue, a matching socket is opened in the middle of the top end of the glue storage cylinder, a sealing cover is provided on the top of the glue box, and a rotating seat is rotatably connected in the middle of the bottom end of the sealing cover, a synchronization rod is provided inside the matching socket, and the top end of the synchronization rod is connected to the middle part of the rotating seat, a driving motor is provided in the middle of the top end of the sealing cover, and the output end of the driving motor is connected to the middle part of the rotating seat.

[0017] Preferably, the glue switching mechanism also includes a glue discharge chamber, a glue discharge chamber is opened on one side of the bottom end of the glue box, and a glue return chamber is opened on the other side of the bottom end of the glue box. An electric control valve is provided in the middle of the top of the glue discharge chamber to control the flow state of the glue in the separation chamber. A micro glue pump is provided in the middle and lower part of the side of the glue box away from the piezoelectric ceramic, the glue inlet of the micro glue pump is connected with the interior of the glue discharge chamber through a connecting pipe, and the glue outlet of the micro glue pump is connected with the interior of the glue return chamber through a connecting pipe. A micro pressurizer is provided in the middle and upper part of one side of the glue box, and the pressurizing port of the micro pressurizer is connected with the interior of the inner cavity.

[0018] Preferably, the auxiliary dispensing mechanism includes an ultrasonic transducer, and an ultrasonic transducer is provided in the upper middle part of the outer wall of the glue outlet nozzle. A variable amplitude rod is provided inside the ultrasonic transducer for controlling and adjusting the amplitude according to different types of glue, so that the glue produces high-frequency micro-vibrations at the needle tip at the bottom end of the glue outlet nozzle, reducing the cohesive force of the glue and improving its fluidity. An annular heater is provided in the lower middle part of the outer wall of the glue outlet nozzle.

[0019] Preferably, the drying and shaping mechanism includes a lamp bead placement machine, the resin letter on the upper middle part of the rear side of the base is provided with a lamp bead placement machine, a plurality of prismatic resonant cavities are equidistantly provided at the inner bottom of the positioning groove, an installation cavity is provided on one side of the bottom end of the stepping turntable, a microwave generator is provided at the bottom of the installation cavity, and a waveguide is provided at the upper middle part of the inner side of the installation cavity.

[0020] Working principle: When producing and processing lighting lamps, the staff will place the substrate to be processed in the first positioning slot in the stepping turntable for loading and positioning. After the loading and positioning of the substrate is completed, the stepping turntable on the base is started to transfer the substrate after positioning to the position of the substrate dispensing. Then the micro-dispensing mechanism is started. First, the side seat on the mounting seat is started. When the side seat is started, it drives the insulation cover, glue box and the glue nozzle at the bottom to move to the position of the substrate in the positioning slot, so as to facilitate subsequent dispensing. Then, after the Z-axis moving module on the mounting seat is moved into place, the control receiver on the side seat receives the signal to start, and transmits the signal to the voltage amplifier to convert it into a control signal to adjust the corresponding voltage. Then, the voltage adjusted by the voltage amplifier drives the piezoelectric ceramics on the glue box, and the piezoelectric The ceramic generates axial deformation at the same time of startup. The axial deformation generated by it pushes the dispensing piston in the glue discharge cavity to accurately extrude a very small amount of glue. The small amount of glue squeezed out of the glue discharge cavity then enters the microchannel formed by the conical guide cavity in the glue outlet nozzle. When the glue entering the microchannel is discharged, the laminar flow acceleration of the glue is achieved through the gradient change of the cross-sectional area of ​​the conical guide cavity. At the same time, the stacked flow-limiting diaphragm in the conical guide cavity realizes multi-level flow segmentation by decreasing the aperture during the flow of the glue. At the same time, the nano-coating on the conical guide cavity uses its super-hydrophobic properties to reduce the adhesion of the glue during the flow. In this process, the voltage amplifier can accurately control the voltage size and time, thereby realizing picoliter-level micro-dispensing operations, and the dispensing process responds quickly, and multiple micro-dispensing operations can be completed in a short time, thereby completing the micro-dispensing processing of the lighting substrate.When replacing glue for different positions or different materials of the lighting lamp substrate, the glue switching mechanism is activated. When it is necessary to replace glue of different properties, the micro glue pump on the glue box is first started. The micro glue pump pumps the glue remaining in the glue discharge chamber and the glue outlet nozzle through the connecting pipe, and discharges it into the glue return chamber through the connecting pipe for storage, thereby clearing the residual glue used last time in the glue discharge chamber and the stacked current limiting diaphragm. Then the driving motor on the sealing cover is started, and the rotating shaft of the driving motor drives the rotating seat at the bottom to rotate synchronously while rotating. The rotating seat drives the synchronous rod at the bottom to rotate while rotating synchronously. The synchronous rod is driven to rotate while driving The glue storage cylinder in the dynamic inner cavity rotates synchronously, and the glue storage cylinder drives the glue in the separation chamber to switch synchronously while rotating. When the glue to be used is rotated to the position of the electric control valve, the glue storage cylinder stops rotating. At this time, the micro pressurizer and the electric control valve on the glue box are opened. While the micro pressurizer pressurizes the corresponding inner cavity, the glue stored in the separation chamber at the corresponding position is discharged into the glue discharge chamber through the electric control valve for subsequent glue dispensing, thereby completing the switching process of the glue for glue dispensing processing; during the glue dispensing process, the auxiliary glue dispensing mechanism is started, and when the glue in the glue discharge chamber is discharged through the micro channel formed by the tapered guide cavity inside it, the ultrasonic transducer on the glue outlet converts the high-frequency electrical signal into Mechanical vibration, and according to the type of glue and the usage status, the amplitude transmission efficiency is optimized through the amplitude rod, and the amplitude is precisely controlled during the dispensing process, so that the dispensing needle at the bottom of the glue nozzle produces high-frequency micro-vibration, which reduces the cohesive force of the glue, and the glue is heated and kept warm by the ring heater at the bottom of the glue nozzle to improve its fluidity during the dispensing process, thereby completing the auxiliary dispensing process of the lighting lamp substrate; after the dispensing process of the lighting lamp substrate is completed, the stepping turntable on the base is started again, so that the substrate after the dispensing process is completed is rotated to the positioning groove position of the lamp bead finalization, and then the drying and finalization mechanism is started, and the lamp bead placement machine on the base is started first, and the lamp bead placement machine on the base is started. The lamp beads to be used are fitted and installed at the glue dispensing positions on the substrate. After the lamp beads on the substrate are installed, the microwave generator in the installation cavity is started and generates high-frequency electromagnetic waves. The high-frequency electromagnetic waves generated are transmitted through the waveguide in the installation cavity to the prismatic resonant cavity at the bottom of the positioning groove, thereby forming a high-frequency cross electromagnetic field in the prismatic resonant cavity. Affected by the prismatic space in the prismatic resonant cavity, the microwave forms a standing wave in the cavity of the prismatic resonant cavity. At the same time, the polar molecules in the glue on the substrate vibrate at high speed under the action of the microwave electric field, and the friction between the molecules generates heat, thereby realizing endogenous heating of the glue and accelerating the heating efficiency of the glue on the substrate in the positioning groove, thereby completing the drying and shaping process between the glue on the substrate and the lamp beads.Finally, after the drying and shaping mechanism, the lighting lamp substrate is transported again by the stepping turntable on the base, and then it is transported to the positioning slot for unloading. The staff will take out the processed substrate, thus completing a processing cycle. This cycle is repeated to complete the continuous processing of lighting lamp substrates.

[0021] The present invention provides an automated glue dispensing machine for lighting lamp production. It has the following beneficial effects:

[0022] 1. The present invention adds and sets a micro-dispensing mechanism. When performing dispensing processing on the lighting lamp substrate, in terms of dispensing accuracy, the mechanism can achieve micro-dispensing at the picoliter level by precisely controlling the magnitude and time of the applied voltage, and accurately controlling the dispensing amount, which can meet process scenarios with extremely high precision requirements such as LED chip packaging and micro-optical component bonding, and effectively avoid the problem of component performance degradation or material waste caused by too much or too little glue; in terms of dispensing efficiency, the piezoelectric ceramic drive has an extremely fast response speed and can complete multiple micro-dispensing operations in a very short time, meeting the requirements of high-frequency dispensing process, significantly improving dispensing efficiency, and is suitable for large-scale, assembly-line dispensing processing of lighting lamp substrates. In addition, the driving method has high stability, which can reduce dispensing errors caused by mechanical wear, ensure the consistency and reliability of dispensing quality, and provide an efficient, stable and accurate dispensing solution for lighting lamp production.

[0023] 2. The present invention adds and sets a glue switching mechanism. In the dispensing process of lighting lamp substrates, the mechanism can automatically complete the switching supply of multiple glues according to different process requirements, completely abandoning the tedious operation of manually replacing glue containers, greatly improving the production line replacement efficiency, and the mechanism will automatically clear the residual glue in the glue nozzle before switching, avoiding problems such as uneven dispensing and abnormal curing caused by mixed glue components. This processing method not only reduces manual intervention, but also can accurately adapt to diversified production scenarios, providing a clean and efficient supply solution for multi-process dispensing of complex lighting products, and effectively improving the level of production line automation and the consistency of product quality.

[0024] 3. The present invention adds and sets an auxiliary dispensing mechanism. In the dispensing process of lighting lamp substrates, the high-frequency vibration generated by ultrasound can be accurately transmitted to the glue interface, and the wire drawing phenomenon in the dispensing process is effectively suppressed by destroying the liquid bridging structure, avoiding component contamination or position displacement caused by glue tailing, and greatly improving the integrity of dispensing molding. At the same time, the annular heating device maintains a constant temperature at the glue discharge position, and solves the extrusion problem of high-viscosity materials by improving the fluidity of the glue, making the dispensing process smoother and more stable. Through the dual effects of physical vibration and temperature control, this mechanism can not only reduce dispensing defects and improve the accuracy of glue dot morphology, but also adapt to glue materials of various viscosities, providing an efficient and reliable solution for the precise dispensing of complex lighting substrates, and significantly optimizing production quality and process adaptability.

[0025] 4. The present invention adds and sets a drying and shaping mechanism. After the gluing process of the lighting lamp substrate, it is different from the surface conduction heating of traditional hot air drying. This mechanism uses microwaves to excite the polar molecules in the glue to vibrate at high frequencies, thereby achieving endogenous heating from the inside to the surface, greatly shortening the drying time and significantly improving production efficiency. At the same time, the precise design of the resonant cavity ensures that all parts of the glue layer are heated evenly, avoiding problems such as glue carbonization and bubble residue caused by local overheating, and preventing the lamp beads from shifting due to uneven heating, thereby ensuring the positioning accuracy of the components. This heating and shaping method can not only optimize the density of the glue layer and enhance the bonding strength, but is also compatible with a variety of glue types and has high processing adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the front structure of the overall device of the present invention;

[0027] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the structure at A;

[0028] Figure 3 It is a schematic diagram of the partial structure of the plastic box of the present invention;

[0029] Figure 4 This is a schematic diagram of the internal structure of the plastic box of the present invention;

[0030] Figure 5 It is a schematic cross-sectional view of the internal structure of the plastic box of the present invention;

[0031] Figure 6 It is a schematic cross-sectional view of the internal structure of the glue nozzle of the present invention;

[0032] Figure 7 This is a schematic diagram of the bottom structure of the sealing cover of the present invention;

[0033] Figure 8 Schematic diagram of the stepping turntable structure of the present invention;

[0034] Figure 9 It is a schematic cross-sectional view of the internal structure of the stepping turntable of the present invention.

[0035] Among them, 1. base; 2. inspection door; 3. voltage amplifier; 4. stepping turntable; 5. positioning slot; 6. lamp bead placement machine; 7. Z-axis moving module; 8. micro pressurizer; 9. drive motor; 10. glue box; 11. side seat; 12. mounting seat; 13. control receiver; 14. insulation sleeve; 15. micro glue pump; 16. ultrasonic transducer; 17. ring heater; 18. glue nozzle; 19. sealing cover; 20. piezoelectric ceramic; 21. inner cavity; 22. matching jack; 23. partition cavity; 24. glue storage cylinder; 25. electric control valve; 26. glue discharge cavity; 27. glue return cavity; 28. stacked current limiting diaphragm; 29. ​​conical guide cavity; 30. nano coating; 31. synchronization rod; 32. rotating seat; 33. prismatic resonant cavity; 34. mounting cavity; 35. microwave generator; 36. waveguide. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Please see the attached Figure 1 The embodiment of the present invention provides an automated glue dispensing machine for lighting lamp production, comprising a base 1, a stepping turntable 4 being provided on one side of the top middle portion thereof, the stepping turntable 4 being used to adjust the position of the lighting lamp substrate by ninety degrees at a time; four positioning grooves 5 are arranged in a circular array on the stepping turntable 4, which are used for loading and positioning the lighting lamp substrate, glue dispensing the substrate, shaping the lamp beads, and unloading the substrate; an inspection door 2 is provided on the lower middle portion of one side of the base 1.

[0038] Please see the attached Figure 3 -Attached Figure 6 , a micro-dispensing mechanism, which is arranged in the middle of one side of the top of the base 1, and is used to perform micro-dispensing processing on the lighting lamp substrate;

[0039] The micro-dispensing mechanism includes a mounting seat 12, a Z-axis moving module 7 is provided on one side of the mounting seat 12, an insulation sleeve 14 is provided on the side of the Z-axis moving module 7 away from the middle of the mounting seat 12, a glue box 10 is provided inside the insulation sleeve 14, and a glue nozzle 18 is provided on the bottom side of the glue box 10.

[0040] When the micro-dispensing mechanism is started, the side seat 11 on the mounting seat 12 is started first. When the side seat 11 is started, it drives the insulation cover 14, the glue box 10 and the glue nozzle 18 at the bottom thereof to move toward the position of the substrate in the positioning groove 5, thereby facilitating subsequent dispensing processing.

[0041] The micro-dispensing mechanism also includes a piezoelectric ceramic 20. The piezoelectric ceramic 20 is arranged in the lower middle part of one side of the glue box 10, and the interior of the piezoelectric ceramic 20 is connected to the dispensing piston. A side seat 11 is arranged in the middle part of one side of the Z-axis moving module 7, a voltage amplifier 3 is arranged on one side of the middle part of the side seat 11, and a control receiver 13 is arranged on the other side of the middle part of the side seat 11.

[0042] Then, after the Z-axis moving module 7 on the mounting seat 12 is moved into place, the control receiver 13 on the side seat 11 receives the signal to start, and transmits the signal to the voltage amplifier 3 to convert it into a control signal to adjust the corresponding voltage size. Then, the voltage adjusted by the voltage amplifier 3 drives the piezoelectric ceramic 20 on the glue box 10. The piezoelectric ceramic 20 generates axial deformation at the same time as it starts, and the axial deformation generated pushes the dispensing piston in the glue discharge cavity 26 to accurately squeeze out a very small amount of glue.

[0043] The micro-dispensing mechanism also includes a conical guide cavity 29. A plurality of conical guide cavities 29 are equidistantly arranged inside the glue outlet nozzle 18. The conical guide cavity 29 forms a plurality of microchannels inside the glue outlet nozzle 18. A plurality of stacked flow limiting diaphragms 28 are equidistantly and staggeredly arranged inside the conical guide cavity 29. Glue discharge holes are opened in the middle of the stacked flow limiting diaphragms 28. The aperture of the glue discharge holes decreases layer by layer from top to bottom. A nano-coating 30 is provided on the inner wall of the conical guide cavity 29.

[0044] Then, a small amount of glue squeezed out of the glue discharge cavity 26 enters the microchannel formed by the conical guide cavity 29 in the glue outlet nozzle 18. When the glue entering the microchannel is discharged, the laminar flow acceleration of the glue is achieved through the gradient change of the cross-sectional area of ​​the conical guide cavity 29. At the same time, the stacked flow limiting diaphragm 28 in the conical guide cavity 29 realizes multi-level flow segmentation by decreasing the aperture during the flow of the glue. At the same time, the nano-coating 30 on the conical guide cavity 29 uses its super-hydrophobic properties to reduce the adhesion of the glue during the flow. In this process, the voltage amplifier 3 can accurately control the voltage size and time, thereby realizing picoliter-level micro-dispensing operations, and the response during the dispensing process is rapid, and multiple micro-dispensing operations can be completed in a short time, thereby completing the micro-dispensing processing of the lighting lamp substrate.

[0045] Please see the attached Figure 3 -Attached Figure 4 and attached Figure 7, a glue switching mechanism, which is provided on one side of the top of the base 1 and is used to switch the glue during the dispensing process of the lighting lamp substrate;

[0046] The glue switching mechanism includes an inner cavity 21. The inner cavity 21 is opened in the upper middle part of the inner side of the glue box 10. The inner cavity 21 is rotatably connected to a glue storage cylinder 24. A plurality of partition chambers 23 are equidistantly opened inside the glue storage cylinder 24, and the partition chambers 23 are used to store different types of glue. A matching socket 22 is opened in the middle of the top of the glue storage cylinder 24. A sealing cover 19 is provided on the top of the glue box 10. The middle part of the bottom end of the sealing cover 19 is rotatably connected to a rotating seat 32. A synchronization rod 31 is provided inside the matching socket 22, and the top of the synchronization rod 31 is connected to the middle part of the rotating seat 32. A drive motor 9 is provided in the middle of the top end of the sealing cover 19, and the output end of the drive motor 9 is connected to the middle part of the rotating seat 32.

[0047] When the glue switching mechanism is started, when it is necessary to replace glue of different properties, the micro glue pump 15 on the glue box 10 is started first. The micro glue pump 15 pumps the glue remaining in the glue discharge chamber 26 and the glue outlet nozzle 18 through the connecting pipe, and discharges it into the glue return chamber 27 through the connecting pipe for storage, thereby clearing the residual glue used last time in the glue discharge chamber 26 and the stacked current limiting diaphragm 28.

[0048] The glue switching mechanism also includes a glue discharge chamber 26. A glue discharge chamber 26 is provided on one side of the bottom end of the glue box 10, and a glue return chamber 27 is provided on the other side of the bottom end of the glue box 10. An electric control valve 25 is provided in the middle of the top of the glue discharge chamber 26 for controlling the flow state of the glue in the separation chamber 23. A micro glue pump 15 is provided in the middle and lower part of the side of the glue box 10 away from the piezoelectric ceramic 20. The glue inlet of the micro glue pump 15 is connected to the interior of the glue discharge chamber 26 through a connecting pipe, and the glue outlet of the micro glue pump 15 is connected to the interior of the glue return chamber 27 through a connecting pipe. A micro pressurizer 8 is provided in the middle and upper part of one side of the glue box 10, and the pressurization port of the micro pressurizer 8 is connected to the interior of the inner cavity 21.

[0049] Then the driving motor 9 on the sealing cover 19 is started, and the rotating shaft of the driving motor 9 drives the rotating seat 32 at the bottom thereof to rotate synchronously while rotating, and the rotating seat 32 drives the synchronization rod 31 at the bottom thereof to rotate while rotating synchronously, and the synchronization rod 31 drives the glue storage cylinder 24 in the inner cavity 21 to rotate synchronously while being driven to rotate, and the glue storage cylinder 24 drives the glue in the separation cavity 23 to switch synchronously while rotating.

[0050] When the glue to be used is rotated to the position of the electric control valve 25, the glue storage cylinder 24 stops rotating. At this time, the micro pressurizer 8 and the electric control valve 25 on the glue box 10 are opened. While the micro pressurizer 8 pressurizes the corresponding inner cavity 21, the glue stored in the corresponding position separation cavity 23 is discharged into the glue discharge cavity 26 through the electric control valve 25 for subsequent glue dispensing, thereby completing the switching process of the glue for glue dispensing processing.

[0051] Please see the attached Figure 2 , an auxiliary dispensing mechanism, which is arranged on one side of the top of the base 1 and is used to assist in the dispensing process of the lighting lamp substrate;

[0052] The auxiliary dispensing mechanism includes an ultrasonic transducer 16. The ultrasonic transducer 16 is arranged in the upper middle part of the outer wall of the glue outlet nozzle 18. A variable amplitude rod is arranged inside the ultrasonic transducer 16 for controlling and adjusting the amplitude according to different types of glue, so that the glue produces high-frequency micro-vibrations at the bottom needle tip of the glue outlet nozzle 18, reducing the cohesive force of the glue and improving its fluidity. A ring heater 17 is arranged in the lower middle part of the outer wall of the glue outlet nozzle 18.

[0053] When the auxiliary dispensing mechanism is started, when the glue in the glue discharge cavity 26 is discharged through the microchannel formed by the conical guide cavity 29 inside it, the ultrasonic transducer 16 on the glue discharge nozzle 18 converts the high-frequency electrical signal into mechanical vibration, and optimizes the amplitude transmission efficiency through the amplitude rod according to the type of glue and the usage status. By precisely controlling the amplitude during the dispensing process, high-frequency micro-vibration is generated at the dispensing needle at the bottom of the glue discharge nozzle 18, thereby reducing the cohesive force of the glue, and heating and keeping the glue warm through the annular heater 17 at the bottom of the glue discharge nozzle 18, thereby improving its fluidity during the dispensing process, thereby completing the auxiliary dispensing process of the lighting lamp substrate.

[0054] Please see the attached Figure 8 -Attached Figure 9 , a drying and shaping mechanism is arranged inside the stepping turntable 4, and is used to dry and shape the lighting lamp substrate and the lamp beads on the upper part after the dispensing process is completed.

[0055] The drying and shaping mechanism includes a lamp bead placement machine 6. The resin character on the upper middle part of the rear side of the base 1 is provided with a lamp bead placement machine 6. A plurality of prismatic resonant cavities 33 are equidistantly provided at the inner bottom of the positioning groove 5. An installation cavity 34 is provided on one side of the bottom end of the stepping turntable 4. A microwave generator 35 is provided at the bottom of the installation cavity 34, and a waveguide 36 is provided at the upper middle part of the inner side of the installation cavity 34.

[0056] Then when the drying and shaping mechanism is started, the lamp bead placement machine 6 on the base 1 is started first, and the lamp beads to be used are fitted and installed at the glue dispensing positions on the substrate.

[0057] After the lamp beads on the substrate are installed, the microwave generator 35 in the installation cavity 34 is started and generates high-frequency electromagnetic waves. The high-frequency electromagnetic waves generated by the microwave generator 35 are transmitted to the prismatic resonant cavity 33 at the bottom of the positioning groove 5 through the waveguide 36 in the installation cavity 34, thereby forming a high-frequency cross electromagnetic field in the prismatic resonant cavity 33. Under the influence of the prismatic space in the prismatic resonant cavity 33, the microwave forms a standing wave in the cavity of the prismatic resonant cavity 33. At the same time, the polar molecules in the glue on the substrate vibrate at high speed under the action of the microwave electric field, and the friction between the molecules generates heat, thereby realizing endogenous heating of the glue and accelerating the heating efficiency of the glue on the substrate in the positioning groove 5, thereby completing the drying and shaping process between the glue on the substrate and the lamp beads.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic dispensing machine for lighting lamp production, characterized in that: include The base (1) has a stepping turntable (4) disposed on one side of the middle portion of the top thereof, and the stepping turntable (4) is used to adjust the position of the lighting lamp substrate by ninety degrees each time; The stepping turntable (4) has four positioning grooves (5) arranged in a circular array, which are used for positioning the lighting lamp substrate, dispensing the substrate glue, shaping the lamp beads, and blanking processing respectively; An inspection door (2) is provided at the lower middle portion of one side of the base (1). A micro-dispensing mechanism is provided at the middle of one side of the top of the base (1) and is used for performing micro-dispensing treatment on the lighting lamp substrate; A glue switching mechanism is provided on one side of the top of the base (1) and is used for switching the glue during the dispensing process of the lighting lamp substrate; An auxiliary glue dispensing mechanism is provided on one side of the top of the base (1) and is used for assisting in the glue dispensing process of the lighting lamp substrate; The drying and shaping mechanism is arranged inside the stepping turntable (4) and is used to dry and shape the lighting lamp substrate and the lamp beads on the upper portion after the glue dispensing process is completed.

2. The automatic dispensing machine for lighting lamp production according to claim 1, characterized in that: The micro-dispensing mechanism comprises a mounting seat (12), a Z-axis moving module (7) is provided on one side of the mounting seat (12), a heat-insulating sleeve (14) is provided on a side of the Z-axis moving module (7) away from the middle of the mounting seat (12), a glue box (10) is provided inside the heat-insulating sleeve (14), and a glue outlet nozzle (18) is provided on one side of the bottom of the glue box (10).

3. The automatic dispensing machine for lighting lamp production according to claim 2, characterized in that: The micro-dispensing mechanism further includes a piezoelectric ceramic (20), a piezoelectric ceramic (20) is provided at the middle and lower part of one side of the glue box (10), and the interior of the piezoelectric ceramic (20) is connected to the dispensing piston, a side seat (11) is provided at the middle part of one side of the Z-axis moving module (7), a voltage amplifier (3) is provided on one side of the middle part of the side seat (11), and a control receiver (13) is provided on the other side of the middle part of the side seat (11).

4. The automatic dispensing machine for lighting lamp production according to claim 3, characterized in that: The micro-dispensing mechanism also includes a conical guide cavity (29), a plurality of conical guide cavities (29) are equidistantly arranged inside the glue outlet nozzle (18), the conical guide cavity (29) forms a plurality of micro-channels inside the glue outlet nozzle (18), a plurality of stacked flow-limiting diaphragms (28) are equidistantly and staggeredly arranged inside the conical guide cavity (29), and a glue discharge hole is opened in the middle of each stacked flow-limiting diaphragm (28), the aperture of the glue discharge hole decreases layer by layer from top to bottom, and a nano coating (30) is provided on the inner wall of each conical guide cavity (29).

5. The automatic dispensing machine for lighting lamp production according to claim 4, characterized in that: The glue switching mechanism comprises an inner cavity (21), an inner cavity (21) is provided at the middle upper portion of the inner side of the glue box (10), a glue storage cylinder (24) is rotatably connected inside the inner cavity (21), a plurality of separation chambers (23) are equidistantly provided inside the glue storage cylinder (24), and the separation chambers (23) are used to store different types of glue, a matching socket (22) is provided at the middle portion of the top end of the glue storage cylinder (24), a sealing cover (19) is provided at the top of the glue box (10), a rotating seat (32) is rotatably connected at the middle portion of the bottom end of the sealing cover (19), a synchronization rod (31) is provided inside the matching socket (22), and the top end of the synchronization rod (31) is connected to the middle portion of the rotating seat (32), a driving motor (9) is provided at the middle portion of the top end of the sealing cover (19), and the output end of the driving motor (9) is connected to the middle portion of the rotating seat (32).

6. The automatic dispensing machine for lighting lamp production according to claim 5, characterized in that: The glue switching mechanism also includes a glue discharge chamber (26), a glue discharge chamber (26) is provided on one side of the bottom end of the inside of the glue box (10), and a glue return chamber (27) is provided on the other side of the bottom end of the inside of the glue box (10). An electric control valve (25) is provided in the middle of the top of the glue discharge chamber (26) for controlling the flow state of the glue in the separation chamber (23). A micro glue pump (15) is provided in the middle and lower part of one side of the glue box (10) away from the piezoelectric ceramic (20). The glue inlet of the micro glue pump (15) is connected to the inside of the glue discharge chamber (26) through a connecting pipe, and the glue outlet of the micro glue pump (15) is connected to the inside of the glue return chamber (27) through a connecting pipe. A micro pressurizer (8) is provided in the middle and upper part of one side of the glue box (10), and the pressurizing port of the micro pressurizer (8) is connected to the inside of the inner cavity (21).

7. The automatic dispensing machine for lighting lamp production according to claim 4, characterized in that: The auxiliary dispensing mechanism includes an ultrasonic transducer (16), an ultrasonic transducer (16) is provided at the upper middle portion of the outer wall of the glue dispensing nozzle (18), and a variable amplitude rod is provided inside the ultrasonic transducer (16) for controlling and adjusting the amplitude according to different types of glue, so that the glue generates high-frequency micro-vibration at the needle tip at the bottom end of the glue dispensing nozzle (18), thereby reducing the cohesive force of the glue and improving its fluidity. A ring heater (17) is provided at the lower middle portion of the outer wall of the glue dispensing nozzle (18).

8. The automatic dispensing machine for lighting lamp production according to claim 1, characterized in that: The drying and shaping mechanism comprises a lamp bead mounting machine (6), a lamp bead mounting machine (6) is provided on the resin character at the upper middle portion of the rear side of the base (1), a plurality of prismatic resonant cavities (33) are equidistantly provided on the inner bottom of the positioning groove (5), a mounting cavity (34) is provided on one side of the bottom end inside the stepping turntable (4), a microwave generator (35) is provided at the bottom of the mounting cavity (34), and a waveguide (36) is provided on the inner middle upper portion of the mounting cavity (34).

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