CN103817052B - Full-automatic LED fluorescent material coating equipment and control method thereof - Google Patents
Full-automatic LED fluorescent material coating equipment and control method thereof Download PDFInfo
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- CN103817052B CN103817052B CN201410061135.9A CN201410061135A CN103817052B CN 103817052 B CN103817052 B CN 103817052B CN 201410061135 A CN201410061135 A CN 201410061135A CN 103817052 B CN103817052 B CN 103817052B
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- 239000000463 material Substances 0.000 title claims abstract description 116
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- 230000033001 locomotion Effects 0.000 claims abstract description 40
- 239000007921 spray Substances 0.000 claims abstract description 25
- 239000002699 waste material Substances 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 8
- 210000003437 trachea Anatomy 0.000 claims description 6
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Abstract
Disclosure full-automatic LED fluorescent material coating equipment and control method thereof, this fluorescent material coating equipment includes frame, main control box and industrial computer main frame it is fixed with below frame, frame top is provided with XYZ axle motion platform, charging tray tractor, shower nozzle control chamber, waste material box and cleaning sponge, main control box is provided with control circuit, the Z axis of XYZ axle motion platform moves and is provided with spray equipment and image collecting device on slide block, shower nozzle control chamber is fixedly arranged above keyboard and the display screen of industrial computer, control circuit, image collecting device is connected with industrial computer main frame respectively。Present configuration is simply compact, the execution efficiency of system resource can be improve in conjunction with proposed control method, the fluorescent material coating of the fully automatic feeding of LED support, blanking and LED can be completed, it is possible to resolve the difficult problems such as manual loading efficiency is low and fluorescent material coated side is uneven。
Description
Technical field
The present invention relates to LED in optical, mechanical and electronic integration and produce equipment technical field, specifically refer to full-automatic LED fluorescent material coating equipment and control method thereof。
Technical background
Owing to " blue chip+YAG fluorescent powder " produces the manufacture method of white light LEDs, its cost is minimum, practical, it has also become the main flow of existing market product。By be substrate with sapphire LED chip be applied to field of semiconductor illumination, have to pass through complicated packaging technology and manufacturing process includes die bond, bonding, fluorescent material coating, plastic packaging molding, color-division and testing, sorting braid etc., the blue light that LED sends could be converted to white light。Fluorescent material coating, as realizing one of critical process that LED blue light changes to white light, directly affects LED luminous efficiency and optical uniformity。
Fluorescent material coating equipment is one of key equipment in white light LEDs production process, has been mainly used in moving back the fluorescent powder coating technique of LED chip, accurately controls the coating zone of fluorescent material, coated weight and coating thickness。At present, domestic widely used be semi-automatic point gum machine, owing to its feeding and blanking are by being accomplished manually, therefore its efficiency is very low；Secondly, what it adopted is free dotting glue method is to complete coating processes, and research finds, thickness and the concentration of the phosphor powder layer of free-pouring phosphor gel formation are uneven, thus affecting the quality of lighting of white light LEDs, form similar chromosphere or mottle phenomenon。The independent research and development of the fluorescent material coating equipment that current China there is no automatically, technique is advanced, abroad takes block policy to key technology and Core equipment-full-automatic fluorescent material coating etc.。LED enterprise of China is difficult to buy the full-automatic coating equipment that technique is advanced。Therefore, critical process and equipment are under one's control, even if causing imported L ED chip, also cannot produce the external high-quality LED module adopting advanced coating processes to produce。The shortage manufacturing equipment seriously constrains the development of great power LED and the improvement of manufacturing process, and the integrity issue solving China's LED packaging technology and equipment industrial chain is imperative。
Summary of the invention
The purpose of the present invention is contemplated to solve above-mentioned the deficiencies in the prior art part, it is provided that a kind of full-automatic fluorescent material coating equipment adopting atomizing spraying technique and control method thereof。This fluorescent material coating equipment realizes the automatic charging of charging tray, the automatic vision location of LED, atomizing spraying and automatic blanking, this equipment can adopt the phosphor powder layer spray uniformity based on iterative learning and method for controlling thickness, solves phosphor powder layer spray uniformity and a Thickness Control Technology difficult problem。
The purpose of the present invention is realized by following proposal:
A kind of full-automatic LED fluorescent material coating equipment includes frame, main control box and industrial computer main frame it is fixed with below described frame, described frame top is provided with XYZ axle motion platform, charging tray tractor, shower nozzle control chamber, waste material box and cleaning sponge, described charging tray tractor is positioned at below the Z axis working region of XYZ axle motion platform, described waste material box and cleaning sponge are positioned at the side of charging tray tractor, and within the scope of the Z axis working region of XYZ axle motion platform, the left side of described charging tray tractor is provided with feeding device, right side is provided with blanking device, described XYZ axle motion platform is arranged above protective plate muscle, described main control box is provided with control circuit, the Z axis of described XYZ axle motion platform moves and is provided with spray equipment and image collecting device on slide block, described shower nozzle control chamber is fixedly arranged above keyboard and the display screen of industrial computer, described control circuit, image collecting device is connected with industrial computer main frame respectively。
Further, described XYZ axle motion platform includes X-direction drive lead screw and X-direction servomotor, Y-direction drive lead screw and Y-direction servomotor and Z-direction drive lead screw and Z-direction servomotor, described X-direction servomotor, Y-direction servomotor and Z-direction servomotor are separately fixed at X-direction support, on Y-direction support and Z-direction support, described X-direction support is connected to X-axis left limit switch, X-axis right limit switch and X-axis Zero-point switch, described Y-direction support is connected to Y-axis front limit switch, limit switch and Y-axis Zero-point switch after Y-axis, described Z-direction support is connected to Z axis upper limit position switch, Z axis lower position switch and Z axis Zero-point switch, described X-direction servomotor, Y-direction servomotor is connected with control circuit by servo-driver with Z-direction servomotor, and described X-axis left limit switchs, X-axis right limit switchs, Y-axis front limit switchs, limit switch after Y-axis, Z axis upper limit position switch and Z axis lower position switch are respectively used to X-direction servomotor, the determination of Y-direction servomotor and Z-direction servomotor operational limit position, when control circuit detects the signal of these limit switches, motor cannot run along current direction again, can only along its reverse direction operation, X-axis Zero-point switch, Y-axis Zero-point switch, it is respectively used to X-direction servomotor with Z axis Zero-point switch, Y-direction servomotor and Z-direction servomotor initialize the determination of dead-center position, and described X-axis left limit switchs, X-axis right limit switchs, X-axis Zero-point switch, Y-axis front limit switchs, limit switch after Y-axis, Y-axis Zero-point switch, Z axis upper limit position switch, Z axis lower position switch is directly connected with control circuit with Z axis Zero-point switch。
Further, described feeding device includes stock shelf lifting platform, described stock shelf lifting platform is connected with feeding screw mandrel, described feeding screw mandrel is connected with feeding motor, described feeding motor is fixed on feeding support, described feeding support is connected to feeding upper limit position switch, feeding lower position switch and feeding Zero-point switch, described stock shelf lifting platform is used for fixing stock shelf, described stock shelf is not for spraying the placement of LED charging tray, described charging tray is milled with the hole, location of applicable various components and parts and for dragging the material drag hole of charging tray, for pushing the shoving hole of charging tray, charging tray is used for fixing various components and parts, and put indeformable in high temperature environments, described feeding motor is connected with control circuit by step actuator, described feeding upper limit position switch, feeding lower position switch is for the determination of feeding motor operational limit position, when control circuit detects the signal of these limit switches, motor cannot run along current direction again, can only along its reverse direction operation, feeding Zero-point switch initializes the determination of dead-center position for feeding motor, described feeding upper limit position switch, feeding lower position switch, feeding Zero-point switch, directly it is connected with control circuit。
Further, described blanking device includes blanking rack lifting platform, described blanking rack lifting platform is connected with blanking screw mandrel, described blanking screw mandrel is connected with blanking motor, described blanking motor is fixed on blanking support, described blanking support is connected to blanking upper limit position switch, blanking lower position switch and blanking Zero-point switch, described blanking rack lifting platform is used for fixing blanking rack, described blanking rack is for collecting the LED charging tray sprayed, described blanking motor is connected with control circuit by step actuator, described blanking upper limit position switch and blanking lower position switch are used for the determination of blanking motor operational limit position, when control circuit detects the signal of these limit switches, motor cannot run along current direction again, can only along its reverse direction operation, blanking Zero-point switch initializes the determination of dead-center position for blanking motor, described blanking upper limit position switch, blanking lower position switch is directly connected with control circuit with blanking Zero-point switch。
Further, described charging tray tractor includes charging tray guide rail, material drag left limit switch is installed inside described charging tray guide rail, material drag right limit switch and material drag Zero-point switch, in the middle of described charging tray guide rail, groove is installed, described groove left end is fixed with material drag motor, described material drag motor passes through belt, actuating device is connected with hook device, and be connected with control circuit by step actuator, described hook device includes two hooks, one for hooking material hook, another is feeding hook, and be connected with trachea, described trachea is by electromagnetic valve control, described electromagnetic valve is connected with control circuit, described material drag left limit switchs, material drag right limit switch is for the determination of material drag motor operational limit position, when control circuit detects the signal of these limit switches, motor cannot run along current direction again, can only along its reverse direction operation, material drag Zero-point switch initializes the determination of dead-center position for material drag motor, described material drag left limit switchs, material drag right limit switch is directly connected with control circuit with material drag Zero-point switch。
Further, described image collecting device is connected with each other by photographic head, camera lens and light source and forms, and described photographic head moves slide block with Z axis and is connected。
Further, described spray equipment is made up of atomizer, phosphor gel syringe, described shower nozzle control chamber is provided with the printhead controller for controlling shower nozzle work, atomizer is connected with the printhead controller being arranged in shower nozzle control chamber respectively through gas circuit with phosphor gel syringe, and printhead controller is connected with the control circuit in main control box。
Further, described control circuit is made up of motion control card, I/O interface board and auxiliary reclay；Control circuit receives the order that industrial computer main frame sends, completing all controls of fluorescent material coating, described motion control card receives each limit switch, the signal of Zero-point switch by I/O interface board and completes the control to printhead controller, auxiliary reclay, motor servo driver and stepper motor driver；Auxiliary reclay is for being controlled electromagnetic valve, and the break-make completing gas circuit controls, thus realizing the control to the raising and lowering hooking material hook and feeding hook。
The control method of described full-automatic fluorescent material coating equipment comprises the steps and technological requirement:
(1) full-automatic fluorescent material coating equipment is started；
(2) industrial computer main frame sends out control command to control circuit, controls X-direction servomotor, Y-direction servomotor, Z-direction servomotor, feeding motor, blanking motor and material drag motor and returns the zero of predefined；
(3) control circuit controls step actuator so that material drag step motor drive actuating device makes to hook material hook and is arranged in immediately below the material drag hole of stock shelf charging tray；
(4) control circuit drives electromagnetic valve by auxiliary reclay, controls gas circuit and makes hook material hook increase, and hooks dynamic charging tray to spray coating operations district, and after putting in place, control gas circuit makes to hook material hook and drops to initial position；
(5) LED location to be sprayed is carried out image acquisition by image collecting device, and picture signal is transferred to industrial computer main frame, and picture signal is analyzed obtaining the particular location of LED by industrial computer main frame, then position signalling is transferred to control circuit；
(6) control circuit controls servo-driver, drive XYZ axle motion platform, wiping is once on cleaning sponge first to allow shower nozzle, then waste material box hollow spray twice, then according to the LED location signal obtained, control circuit drives gas circuit and mobile XYZ axle motion platform, starts LED is carried out fluorescent powder jet printing, until all LED on a charging tray have sprayed；
(7) while step (5) and (6), control circuit drives feeding motor, make one position of stock shelf lifting platform decline, make not spray charging tray alignment charging tray guide rail, then, mobile hook device makes to hook material hook and is positioned at immediately below the material drag hole of stock shelf lining dish, and now feeding hook is located just at immediately below the shoving hole of charging tray that sprayed；
(8) in step (5), (6) and after (7) complete, pass through control circuit, controlling gas circuit makes hook material hook and feeding hook all rise, and hook moves and does not spray charging tray to spray coating operations district, also promote the charging tray sprayed to advance simultaneously, after not spraying charging tray arrival working area, controlling gas circuit makes hook material hook drop to initial position, then feeding hook continues to press on and sprays charging tray and advance and deliver on rewinding frame, then controlling gas circuit makes feeding hook drop to initial position, and make one position of blanking rack lifting platform rising, make the empty charging tray bit alignment charging tray guide rail of bin；
(9) step (5)-step (8) is then repeated, till the LED in all charging trays on stock shelf has sprayed。
Hinge structure of the present invention has following positive advantage and beneficial effect:
(1) adopt the full-automatic charging and discharging mechanism of bin-material tray structure to adapt to the white light LEDs of different packing forms。The kind of coating equipment needed for the different LED product fluorescent material coating link of minimizing production, it is provided that production efficiency, thus being substantially reduced production and the maintenance cost of enterprise。
(2) it is completely free of traditional some glue coating method, by controlled high-accuracy atomizer, uses high pressure draught by the mixed liquor atomization of fluorescent material and volatilization liquid, with spray pattern, LED chip is implemented coating。Adopt atomizing spraying mode, can the quantity for spray of accurate control fluorescent material and the uniformity。
Accompanying drawing explanation
Fig. 1 is the full-automatic fluorescent material coating apparatus structure figure of the present invention；
Fig. 2 is XYZ axle motion platform structure chart in the present invention；
Fig. 3 a is feeding device and blanking device structure chart in the present invention；
Fig. 3 b is the rotation enlarged drawing of A in Fig. 3 a；
Fig. 4 is charging tray tractor structure chart in the present invention；
Fig. 5 is hook device structure chart in the present invention；
Fig. 6 is stock shelf structure chart in the present invention；
Fig. 7 is material tray structure figure in the present invention；
Fig. 8 is control partial block diagram in the present invention；
Fig. 9 is the inventive method flow chart。
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but the implementation of the present invention is not limited to this。
Embodiment
As shown in Figure 1, described in the present embodiment, full-automatic LED fluorescent material coating equipment includes frame 1, main control box 12 and industrial computer main frame 16 it is fixed with below frame 1, frame 1 top is provided with XYZ axle motion platform 8, charging tray tractor 5, shower nozzle control chamber 10, waste material box 13 and cleaning sponge 14, charging tray tractor 5 is positioned at below the Z axis working region of XYZ axle motion platform 8, waste material box 13 and cleaning sponge 14 are positioned at the side of charging tray tractor 5, and within the scope of the Z axis working region of XYZ axle motion platform 8, the left side of charging tray tractor 5 is provided with feeding device 3, right side is provided with blanking device 4, XYZ axle motion platform 8 is arranged above protective plate muscle 6, main control box 12 is provided with control circuit, the Z axis of XYZ axle motion platform 8 moves and is provided with spray equipment 9 and image collecting device 11 on slide block 15, shower nozzle control chamber 10 is fixedly arranged above keyboard 2 and the display screen 7 of industrial computer, control circuit, image collecting device 11 is connected with industrial computer main frame 16 respectively。Wherein, frame provides stable operation work platforms for whole equipment, simultaneously protection main control box 12 and industrial computer main frame 16；Main control box 12 mainly realizes a series of control and the detection work such as circuit control, motor driving, pneumatic control and motor position detection；Industrial computer main frame 16 mainly completes the work such as the control of vision-based detection, technological process；XYZ axle motion platform 8 mainly realizes spray equipment 9 and the accurate of image collecting device 11 is moved；Shower nozzle control chamber 10 is provided with printhead controller, is mainly used in controlling the spraying process of shower nozzle；Charging tray tractor 5 mainly complete from feeding device 3 hook feeding dish, transport charging tray to working area, push charging tray enter the work such as blanking device 4；Waste material box 13 is mainly used in the waste liquid produced when collecting the waste material of shower nozzle sky spray and clean shower nozzle；Cleaning sponge 14 is mainly used in wiping and cleaning shower nozzle；Spray equipment 9 mainly completes the spray coating operations of fluorescent material；Image collecting device 11 gathers and obtains stable LED image, and the image processing system of incoming industrial computer main frame 16；Feeding device 3 is used for the placement of stock shelf and moves up and down；Blanking device 4 is used for the placement of blanking rack and moves up and down。
As shown in Figure 2, XYZ axle motion platform 8 includes X-direction drive lead screw 32 and X-direction servomotor 20, Y-direction drive lead screw 33 and Y-direction servomotor 21 and Z-direction drive lead screw 34 and Z-direction servomotor 22, X-direction servomotor 20, Y-direction servomotor 21 and Z-direction servomotor 22 are fixed on X-direction support 35, on Y-direction support 36 and Z-direction support 37, X-direction support 35 is connected to X-axis left limit switch 23, X-axis right limit switch 25 and X-axis Zero-point switch 24, Y-direction support 36 is connected to Y-axis front limit switch 26, limit switch 28 and Y-axis Zero-point switch 27 after Y-axis, Z-direction support 37 is connected to Z axis upper limit position switch 29, Z axis lower position switch 31 and Z axis Zero-point switch 30, X-direction servomotor 20, Y-direction servomotor 21 is connected with control circuit by servo-driver with Z-direction servomotor 22, X-axis left limit switch 23, X-axis right limit switch 25, Y-axis front limit switch 26, limit switch 28 after Y-axis, Z axis upper limit position switch 29 and Z axis lower position switch 31 are respectively used to X-direction servomotor 20, the determination of Y-direction servomotor 21 and Z-direction servomotor 22 operational limit position, when control circuit detects the signal of these limit switches, motor cannot run along current direction again, can only along its reverse direction operation, X-axis Zero-point switch 24, Y-axis Zero-point switch 27, it is respectively used to X-direction servomotor 20 with Z axis Zero-point switch 30, Y-direction servomotor 21 and Z-direction servomotor 22 initialize the determination of dead-center position, these switches above-mentioned are directly connected with control circuit。
As shown in Figure 3 a, feeding device and blanking device include stock shelf lifting platform 40, blanking rack lifting platform 41, stock shelf lifting platform 40 is connected with feeding screw mandrel and blanking screw mandrel 45 respectively with blanking rack lifting platform 41, feeding screw mandrel is connected with blanking motor 43 respectively at feeding motor 42 with blanking screw mandrel 45, feeding motor 42 and blanking motor 43 are separately fixed on feeding support 53 and blanking support 54, feeding support 53 is connected to feeding upper limit position switch 47, feeding lower position switch 49 and feeding Zero-point switch 48, blanking support 54 is connected to blanking upper limit position switch 50, blanking lower position switch 52 and blanking Zero-point switch 51, stock shelf lifting platform 40 and blanking rack lifting platform 41 can be fixed stock shelf 38 and blanking rack 39 respectively, stock shelf 38 and blanking rack 39 can be used for putting charging tray 46, feeding motor 42 is connected with control circuit by step actuator with blanking motor 43, feeding upper limit position switch 47, feeding lower position switch 49, blanking upper limit position switch 50 and blanking lower position switch 52 are respectively used to feeding motor 42 and the determination of blanking motor 43 operational limit position, when control circuit detects the signal of these limit switches, motor cannot run along current direction again, can only along its reverse direction operation, feeding Zero-point switch 48, it is respectively used to feeding motor 42 with blanking Zero-point switch 51 and blanking motor 43 initializes the determination of dead-center position, these switches above-mentioned are directly connected with control circuit, described charging tray 46 is milled with the hole, location of applicable various components and parts and for dragging the material drag hole of charging tray, for pushing the shoving hole of charging tray, for fixing various components and parts, and can put indeformable in high temperature environments。
As shown in Figure 3 b, for the rotation enlarged drawing of A in Fig. 3 a, figure acceptance of the bid illustrates the particular location of feeding screw mandrel 44。
As shown in Figure 4, charging tray tractor 5 includes charging tray guide rail 55, material drag left limit switch 59 is installed inside charging tray guide rail 55, material drag right limit switch 61 and material drag Zero-point switch 60, in the middle of charging tray guide rail 55, groove 58 is installed, groove 58 left end is fixed with material drag motor 57, material drag motor 57 is by belt 62, actuating device is connected with hook device 56, and be connected with control circuit by step actuator, hook device 56 includes two hooks, one for hooking material hook 64, another is feeding hook 65, and be connected with trachea, trachea is by electromagnetic valve control, electromagnetic valve is connected with control circuit, material drag left limit switch 59, material drag right limit switch 61 is for the determination of material drag motor 57 operational limit position, when control circuit detects the signal of these limit switches, motor cannot run along current direction again, can only along its reverse direction operation, material drag Zero-point switch 60 initializes the determination of dead-center position for material drag motor 57, these switches above-mentioned are directly connected with control circuit。
As it is shown in figure 5, be provided with hook material hook 64 and feeding hook 65 in hook device 56, hooking material hook 64 for hooking feeding dish 46 from stock shelf 38, feeding hook 65 is used for pushing charging tray 46 and enters blanking rack。
As shown in Figure 6, stock shelf 38, it is used for putting charging tray 46, bottom stock shelf, has hole, location, it is possible to be fixedly placed on stock shelf lifting platform 40, and can put indeformable in high temperature environments。Blanking rack 39 is the same with the structure of stock shelf 38。
As it is shown in fig. 7, charging tray 46 is for putting various components and parts to be processed, charging tray 46 fits into stock shelf 38 with blanking rack 39, and the two ends of charging tray 46 have a shoving hole 66 and material drag hole 67 respectively。
As shown in Figure 8, the core control part of the present embodiment is industrial computer, and industrial computer completes the communication to image collecting device and control by USB interface, is completed the communication with motion control card and control by pci interface。Motion control card receives each limit switch, the signal of Zero-point switch by I/O interface board and completes the control to printhead controller, auxiliary reclay, motor servo driver and stepper motor driver。Printhead controller, for atomizer is controlled, completes the spraying process of shower nozzle。Auxiliary reclay is for being controlled battery valve, and the break-make completing gas circuit controls, thus realizing the control to the raising and lowering hooking material hook and feeding hook。Motor servo driver is used for driving servomotor, and stepper motor driver is used for drive stepping motor。In the present embodiment, the GTS-400-PV-PCI type motion control card of Shi Gu High Seience Technology Co., Ltd. that motion control card adopts, Shi Hengzhi image Science and Technology Ltd. HV3151UC type video camera, M12140-MP camera lens, R15590-R type light source and the light source analog controller that image capturing system adopts。What servo-drive adopted is the MINASA series of servo drive system of MAT。
The software implement scheme of the present embodiment is as follows: in order to ensure the requirement of the real-time aspect of system to greatest extent, and the present embodiment adopts the GTS-400-PV-PCI type motion control card of specialty to complete the control of servomotor, the control of motor and atomizer spraying process。Program in motion control card can depart from industrial computer independent operating in motion control card, such that it is able to freed from loaded down with trivial details movement logic management by industrial computer。Meanwhile, on industrial computer, adopt multithreading to complete the control of full-automatic fluorescent powder coating technique process, improve the execution efficiency of system。
As it is shown in figure 9, the control method of full-automatic fluorescent material coating equipment comprises the steps and technological requirement described in the present embodiment:
(1) full-automatic fluorescent material coating equipment is started；
(2) 16 control commands of industrial computer main frame are to control circuit, control the zero of X-direction servomotor 20, Y-direction servomotor 21, Z-direction servomotor 22, feeding motor 42, blanking motor 43 and 57 times predefineds of material drag motor；
(3) control circuit controls step actuator so that material drag motor 57 drives actuating device that hook material hook 64 is arranged in immediately below the material drag hole 67 of stock shelf 38 charging tray 46；
(4) control circuit drives electromagnetic valve by auxiliary reclay, controls gas circuit and makes hook material hook 64 increase, and hooks dynamic charging tray 46 to spray coating operations district, after putting in place, controls gas circuit and makes hook material hook 64 drop to initial position；
(5) LED location to be sprayed is carried out image acquisition by image collecting device 11, and picture signal is transferred to industrial computer main frame 16, and picture signal is analyzed obtaining the particular location of LED by industrial computer main frame 16, then position signalling is transferred to control circuit；
(6) control circuit controls servo-driver, drive XYZ axle motion platform 8, wiping is once on cleaning sponge 14 first to allow shower nozzle, then waste material box 13 hollow spray twice, then according to the LED location signal obtained, control circuit drives gas circuit and mobile XYZ axle motion platform 8, starts LED is carried out fluorescent powder jet printing, until all LED on a charging tray have sprayed；
(7) while step (5) and (6), control circuit drives feeding motor, stock shelf lifting platform 40 is declined a position, make not spray charging tray alignment charging tray guide rail 55, then, mobile hook device 56 makes to hook material hook 64 and is positioned at immediately below the material drag hole 67 of stock shelf 38 lining dish, and now feeding hook 65 is located just at immediately below the shoving hole 66 of charging tray that sprayed；
(8) in step (5), (6) and after (7) complete, pass through control circuit, controlling gas circuit makes hook material hook 64 and feeding hook 65 all rise, and hook moves and does not spray charging tray to spray coating operations district, also promote the charging tray sprayed to advance simultaneously, after not spraying charging tray arrival working area, controlling gas circuit makes hook material hook 64 drop to initial position, then feeding hook 65 continues to press on and sprays charging tray and advance and deliver on rewinding frame 39, then controlling gas circuit makes feeding hook 65 drop to initial position, and make blanking rack lifting platform 41 increase a position, make the empty charging tray bit alignment charging tray guide rail 55 of bin；
(9) step (5)-step (8) is then repeated, till the LED in all charging trays on stock shelf has sprayed。
As it has been described above, the present invention just can be realized preferably。
Claims (7)
1. a full-automatic LED fluorescent material coating equipment, it is characterized in that: include frame, main control box and industrial computer main frame it is fixed with below described frame, described frame top is provided with XYZ axle motion platform, charging tray tractor, shower nozzle control chamber, waste material box and cleaning sponge, described charging tray tractor is positioned at below the Z axis working region of XYZ axle motion platform, described waste material box and cleaning sponge are positioned at the side of charging tray tractor, and within the scope of the Z axis working region of XYZ axle motion platform, the side of described charging tray tractor is provided with feeding device, the charging tray tractor opposite side relative with feeding device is provided with blanking device, described XYZ axle motion platform is arranged above protective plate muscle, described main control box is provided with control circuit, the Z axis of described XYZ axle motion platform moves and is provided with spray equipment and image collecting device on slide block, described shower nozzle control chamber is fixedly arranged above keyboard and the display screen of industrial computer, described control circuit, image collecting device is connected with industrial computer main frame respectively；Described spray equipment is made up of atomizer, phosphor gel syringe, described shower nozzle control chamber is provided with the printhead controller for controlling shower nozzle work, atomizer is connected with the printhead controller being arranged in shower nozzle control chamber respectively through gas circuit with phosphor gel syringe, and printhead controller is connected with the control circuit in main control box；
Described XYZ axle motion platform includes X-direction drive lead screw and X-direction servomotor, Y-direction drive lead screw and Y-direction servomotor and Z-direction drive lead screw and Z-direction servomotor, described X-direction servomotor, Y-direction servomotor and Z-direction servomotor are separately fixed at X-direction support, on Y-direction support and Z-direction support, described X-direction support is connected to X-axis left limit switch, X-axis right limit switch and X-axis Zero-point switch, described Y-direction support is connected to Y-axis front limit switch, limit switch and Y-axis Zero-point switch after Y-axis, described Z-direction support is connected to Z axis upper limit position switch, Z axis lower position switch and Z axis Zero-point switch, described X-direction servomotor, Y-direction servomotor is connected with control circuit by servo-driver with Z-direction servomotor, and described X-axis left limit switchs, X-axis right limit switchs, Y-axis front limit switchs, limit switch after Y-axis, Z axis upper limit position switch and Z axis lower position switch are respectively used to X-direction servomotor, the determination of Y-direction servomotor and Z-direction servomotor operational limit position, when control circuit detects the signal of these limit switches, motor cannot run along current direction again, can only along its reverse direction operation, X-axis Zero-point switch, Y-axis Zero-point switch, it is respectively used to X-direction servomotor with Z axis Zero-point switch, Y-direction servomotor and Z-direction servomotor initialize the determination of dead-center position, and described X-axis left limit switchs, X-axis right limit switchs, X-axis Zero-point switch, Y-axis front limit switchs, limit switch after Y-axis, Y-axis Zero-point switch, Z axis upper limit position switch, Z axis lower position switch is directly connected with control circuit with Z axis Zero-point switch。
2. full-automatic LED fluorescent material coating equipment according to claim 1, it is characterized in that: described feeding device includes stock shelf lifting platform, described stock shelf lifting platform is connected with feeding screw mandrel, described feeding screw mandrel is connected with feeding motor, described feeding motor is fixed on feeding support, described feeding support is connected to feeding upper limit position switch, feeding lower position switch and feeding Zero-point switch, described stock shelf lifting platform is used for fixing stock shelf, described stock shelf is not for spraying the placement of LED charging tray, described charging tray is milled with the hole, location of applicable various components and parts and for dragging the material drag hole of charging tray, for pushing the shoving hole of charging tray, charging tray is used for fixing various components and parts, and put indeformable in high temperature environments, described feeding motor is connected with control circuit by step actuator, described feeding upper limit position switch, feeding lower position switch is for the determination of feeding motor operational limit position, when control circuit detects the signal of these limit switches, motor cannot run along current direction again, can only along its reverse direction operation, feeding Zero-point switch initializes the determination of dead-center position for feeding motor, described feeding upper limit position switch, feeding lower position switch, feeding Zero-point switch, directly it is connected with control circuit。
3. full-automatic LED fluorescent material coating equipment according to claim 1, it is characterized in that: described blanking device includes blanking rack lifting platform, described blanking rack lifting platform is connected with blanking screw mandrel, described blanking screw mandrel is connected with blanking motor, described blanking motor is fixed on blanking support, described blanking support is connected to blanking upper limit position switch, blanking lower position switch and blanking Zero-point switch, described blanking rack lifting platform is used for fixing blanking rack, described blanking rack is for collecting the LED charging tray sprayed, described blanking motor is connected with control circuit by step actuator, described blanking upper limit position switch and blanking lower position switch are used for the determination of blanking motor operational limit position, when control circuit detects the signal of these limit switches, blanking motor cannot run along current direction again, can only along its reverse direction operation, blanking Zero-point switch initializes the determination of dead-center position for blanking motor, described blanking upper limit position switch, blanking lower position switch is directly connected with control circuit with blanking Zero-point switch。
4. full-automatic LED fluorescent material coating equipment according to claim 1, it is characterized in that: described charging tray tractor includes charging tray guide rail, material drag left limit switch is installed inside described charging tray guide rail, material drag right limit switch and material drag Zero-point switch, in the middle of described charging tray guide rail, groove is installed, described groove left end is fixed with material drag motor, described material drag motor passes through belt, actuating device is connected with hook device, and be connected with control circuit by step actuator, described hook device includes two hooks, one for hooking material hook, another is feeding hook, and be connected with trachea, described trachea is by electromagnetic valve control, described electromagnetic valve is connected with control circuit, described material drag left limit switchs, material drag right limit switch is for the determination of material drag motor operational limit position, when control circuit detects the signal of these limit switches, motor cannot run along current direction again, can only along its reverse direction operation, material drag Zero-point switch initializes the determination of dead-center position for material drag motor, described material drag left limit switchs, material drag right limit switch is directly connected with control circuit with material drag Zero-point switch。
5. full-automatic LED fluorescent material coating equipment according to claim 1, it is characterised in that: described image collecting device is connected with each other by photographic head, camera lens and light source and forms, and described photographic head moves slide block with Z axis and is connected。
6. full-automatic LED fluorescent material coating equipment according to claim 1, it is characterised in that: described control circuit is made up of motion control card, I/O interface board and auxiliary reclay；Control circuit receives the order that industrial computer main frame sends, fluorescent material coating procedure is controlled, and described motion control card receives each limit switch, the signal of Zero-point switch by I/O interface board and completes the control to printhead controller, auxiliary reclay, motor servo driver and stepper motor driver；Auxiliary reclay is for being controlled electromagnetic valve, and the break-make completing gas circuit controls, thus realizing the control to the raising and lowering hooking material hook and feeding hook。
7. the control method of a kind of full-automatic LED fluorescent material coating equipment described in claim 1, is characterized in that comprising the steps:
(1) full-automatic fluorescent material coating equipment is started；
(2) industrial computer main frame sends out control command to control circuit, controls X-direction servomotor, Y-direction servomotor, Z-direction servomotor, feeding motor, blanking motor and material drag motor and returns the zero of predefined；
(3) control circuit controls step actuator so that material drag step motor drive actuating device makes to hook material hook and is arranged in immediately below the material drag hole of stock shelf charging tray；
(4) control circuit drives electromagnetic valve by auxiliary reclay, controls gas circuit and makes hook material hook increase, and hooks dynamic charging tray to spray coating operations district, and after putting in place, control gas circuit makes to hook material hook and drops to initial position；
(5) LED location to be sprayed is carried out image acquisition by image collecting device, and picture signal is transferred to industrial computer main frame, and picture signal is analyzed obtaining the particular location of LED by industrial computer main frame, then position signalling is transferred to control circuit；
(6) control circuit controls servo-driver, drive XYZ axle motion platform, wiping is once on cleaning sponge first to allow shower nozzle, then waste material box hollow spray twice, then according to the LED location signal obtained, control circuit drives gas circuit and mobile XYZ axle motion platform, starts LED is carried out fluorescent powder jet printing, until all LED on a charging tray have sprayed；
(7) while step (5) and (6), control circuit drives feeding motor, make one position of stock shelf lifting platform decline, make not spray charging tray alignment charging tray guide rail, then, mobile hook device makes to hook material hook and is positioned at immediately below the material drag hole of stock shelf lining dish, and now feeding hook is located just at immediately below the shoving hole of charging tray that sprayed；
(8) in step (5), (6) and after (7) complete, control circuit makes hook material hook and feeding hook all rise by controlling gas circuit, and hook moves and does not spray charging tray to spray coating operations district, also promote the charging tray sprayed to advance simultaneously, after not spraying charging tray arrival working area, hook material hook is made to drop to initial position by controlling gas circuit, then feeding hook continues to press on and sprays charging tray and advance and deliver on rewinding frame, then controlling gas circuit makes feeding hook drop to initial position, and make one position of blanking rack lifting platform rising, make the empty charging tray bit alignment charging tray guide rail of bin；
(9) step (5)-step (8) is then repeated, till the LED in all charging trays on stock shelf has sprayed。
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| CN110064565A (en) * | 2019-04-28 | 2019-07-30 | 深圳市万禾自动化设备有限公司 | LED colour temperature detects dispenser |
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