CN103817052A - Fully-automatic LED phosphor coating apparatus and control method thereof - Google Patents
Fully-automatic LED phosphor coating apparatus and control method thereof Download PDFInfo
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- CN103817052A CN103817052A CN201410061135.9A CN201410061135A CN103817052A CN 103817052 A CN103817052 A CN 103817052A CN 201410061135 A CN201410061135 A CN 201410061135A CN 103817052 A CN103817052 A CN 103817052A
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Abstract
The invention discloses a fully-automatic LED phosphor coating apparatus and a control method thereof. The phosphor coating apparatus comprises a frame, a main control box and an industrial control computer main engine are fixed below the frame, the top end of the frame is provided with an XYZ-axial motion platform, a tray dragging mechanism, a nozzle control box, a waste box and a cleaning sponge, a control circuit is installed in the main control box, the Z-axial moving sliding block of the XYZ-axial motion platform is provided with a spraying device and an image acquisition device, an industrial control computer keyboard and an industrial control computer display screen are fixed over the nozzle control box, and the control circuit and the image acquisition device are respectively connected with the industrial control computer main engine. The apparatus has a simple and compact structure, and the control method is also used to improve the execution efficiency of system resources, so the fully-automatic material feeding, blanking and LED phosphor coating of an LED support can be completed, and the problems of low efficiency, non-uniform phosphor coating surface and the like of manual material feeding can be solved.
Description
Technical field
The present invention relates to LED production equipment technical field in optical, mechanical and electronic integration, specifically refer to full-automatic LED fluorescent material coating equipment and control method thereof.
Technical background
Due to the preparation method of " blue chip+YAG fluorescent material " generation white light LEDs, its cost is minimum, practical, has become the main flow of existing market product.LED chip take sapphire as substrate is applied to field of semiconductor illumination, must comprise die bond, bonding, fluorescent material coating, plastic packaging moulding, color-division and testing, sorting braid etc. through complicated packaging technology and manufacturing process, the blue light that LED could be sent is converted to white light.Fluorescent material applies as realizing LED blue light to one of critical process of white light conversion, 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 coating zone, coated weight and the coating thickness of fluorescent material.At present, domestic extensive employing be semi-automatic point gum machine, because its material loading and blanking are by manually completing, therefore its efficiency is very low; Secondly, what it adopted is that free dotting glue method completes coating processes, research discovery, and thickness and the concentration of the phosphor powder layer that free-pouring phosphor gel forms are inhomogeneous, thereby affect the quality of lighting of white light LEDs, form similar chromosphere or color spot phenomenon.The independent research and development of the fluorescent material coating equipment that current China there is no automatically, technique is advanced, takes blockade policy to key technology and Core equipment-full-automatic fluorescent material coating etc. abroad.LED enterprise of China is difficult to buy technique advanced person's full-automatic coating equipment.Therefore, critical process and equipment are under one's control, even if cause imported L ED chip, also cannot produce the high-quality LED module that the advanced coating processes of external employing is produced.The shortage of manufacturing equipment has seriously restricted the development of great power LED and the improvement of manufacturing process, and the integrity issue that solves China LED packaging technology and equipment industrial chain is imperative.
Summary of the invention
Object of the present invention is exactly in order to solve above-mentioned the deficiencies in the prior art part, and a kind of full-automatic fluorescent material coating equipment and control method thereof that adopts atomizing spraying technique is provided.This fluorescent material coating equipment is realized the automatic charging of charging tray, automatic vision location, atomizing spraying and the automatic blanking of LED, this equipment can adopt phosphor powder layer spray uniformity and the method for controlling thickness based on iterative learning, solves phosphor powder layer spray uniformity and a Thickness Control Technology difficult problem.
Object of the present invention realizes by following proposal:
A kind of full-automatic LED fluorescent material coating equipment comprises frame, described frame below is fixed with main control box and industrial computer main frame, described frame top is provided with XYZ axle motion platform, charging tray tractor, shower nozzle control cabinet, waste material box and cleaning sponge, described charging tray tractor is positioned at the below, 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 top is provided with protective plate muscle, in described main control box, control circuit is installed, on the Z axis moving slider of described XYZ axle motion platform, spray equipment and image collecting device are installed, described shower nozzle control cabinet top is fixed with 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 comprises directions X drive lead screw and directions X servomotor, Y-direction drive lead screw and Y-direction servomotor and Z direction drive lead screw and Z direction servomotor, described directions X servomotor, Y-direction servomotor and Z direction servomotor are separately fixed at directions X support, on Y-direction support and Z direction support, on described directions X support, be connected with X-axis left limit switch, X-axis right limit switch and X-axis Zero-point switch, be connected with Y-axis front limit switch on described Y-direction support, limit switch and Y-axis Zero-point switch after Y-axis, be connected with Z axis upper limit position switch on described Z direction support, Z axis lower position switch and Z axis Zero-point switch, described directions X servomotor, Y-direction servomotor is connected with control circuit by servo-driver with Z direction servomotor, described X-axis left limit switch, X-axis right limit switch, Y-axis front limit switch, limit switch after Y-axis, Z axis upper limit position switch and Z axis lower position switch are respectively used to directions X servomotor, determining of Y-direction servomotor and Z direction servomotor operational limit position, in the time that control circuit detects the signal of these limit switches, motor just can not move along current direction again, can only be along its reverse direction operation, X-axis Zero-point switch, Y-axis Zero-point switch, be respectively used to directions X servomotor with Z axis Zero-point switch, Y-direction servomotor and Z direction servomotor initialize determining of dead-center position, described X-axis left limit switch, X-axis right limit switch, X-axis Zero-point switch, Y-axis front limit switch, 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 material loading screw mandrel, described material loading screw mandrel is connected with material loading stepper motor, described material loading stepper motor is fixed on material loading support, on described material loading support, be connected with material loading upper limit position switch, material loading lower position switch and material loading Zero-point switch, on described stock shelf lifting platform for fixing stock shelf, described stock shelf is not for spraying the placement of LED charging tray, on described charging tray, be milled be applicable to various components and parts locating hole and for dragging the material drag hole of charging tray, for pushing the shoving hole of charging tray, charging tray is for fixing various components and parts, and be placed under hot environment indeformable, described material loading stepper motor is connected with control circuit by step actuator, described material loading upper limit position switch, material loading lower position switch is determined for material loading stepper motor operational limit position, in the time that control circuit detects the signal of these limit switches, motor just can not be again along current direction operation, can only be along its reverse direction operation, material loading Zero-point switch initializes determining of dead-center position for material loading stepper motor, described material loading upper limit position switch, material loading lower position switch, material loading Zero-point switch, directly be 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 stepper motor, described blanking stepper motor is fixed on blanking support, on described blanking support, be connected with blanking upper limit position switch, blanking lower position switch and blanking Zero-point switch, on described blanking rack lifting platform for fixing blanking rack, described blanking rack is for collecting the LED charging tray having sprayed, described blanking stepper motor is connected with control circuit by step actuator, described blanking upper limit position switch and blanking lower position switch are determined for blanking stepper motor operational limit position, in the time that control circuit detects the signal of these limit switches, motor just can not be again along current direction operation, can only be along its reverse direction operation, blanking Zero-point switch initializes determining of dead-center position for blanking stepper 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 comprises charging tray guide rail, described charging tray guide rail inner side is provided with material drag left limit switch, material drag right limit switch and material drag Zero-point switch, groove is installed in the middle of described charging tray guide rail, described groove left end is fixed with material drag stepper motor, described material drag stepper motor passes through belt, transmission 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 tracheae, described tracheae is by solenoid control, described magnetic valve is connected with control circuit, described material drag left limit switch, material drag right limit switch is determined for material drag stepper motor operational limit position, in the time that control circuit detects the signal of these limit switches, motor just can not be again along current direction operation, can only be along its reverse direction operation, material drag Zero-point switch initializes determining of dead-center position for material drag stepper motor, described material drag left limit switch, material drag right limit switch is directly connected with control circuit with material drag Zero-point switch.
Further, described image collecting device is interconnected and is formed by camera, camera lens and light source, and described camera is connected with Z axis moving slider.
Further, described spray equipment is made up of atomizer, phosphor gel syringe, in described shower nozzle control cabinet, the printhead controller for controlling shower nozzle work is installed, atomizer is connected with the printhead controller being arranged in shower nozzle control cabinet by gas circuit respectively 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, complete all controls that fluorescent material applies, described motion control card is received the signal of each limit switch, Zero-point switch and is completed the control to printhead controller, auxiliary reclay, motor servo driver and stepper motor driver by I/O interface board; Auxiliary reclay, for magnetic valve is controlled, completes the break-make control of gas circuit, thereby realizes hooking material hook and the rising of feeding hook and the control of decline.
The control method of described full-automatic fluorescent material coating equipment comprises the steps and technological requirement:
(1) start full-automatic fluorescent material coating equipment;
(2) industrial computer main frame is sent out control command to control circuit, and control directions X servomotor, Y-direction servomotor, Z direction servomotor, material loading stepper motor, blanking stepper motor and material drag stepper motor return the origin of coordinates of predefined;
(3) control circuit control step driver, makes material drag stepper motor drive transmission make to hook material hook and is arranged under the material drag hole of stock shelf charging tray;
(4) control circuit drives magnetic valve by auxiliary reclay, controls gas circuit and makes hook material hook increase, and hook moving charging tray to spraying workspace, and after putting in place, control gas circuit makes to hook material hook and drops to initial position;
(5) image collecting device carries out IMAQ to the LED position that will spray, and by image signal transmission to industrial computer main frame, industrial computer main frame obtains the particular location of LED to picture signal analysis, then position signalling is transferred to control circuit;
(6) control circuit control servo-driver, drive XYZ axle motion platform, wiping is once on cleaning sponge first to allow shower nozzle, then twice of waste material box hollow spray, then according to the LED position signalling obtaining, control circuit drives gas circuit and mobile XYZ axle motion platform, starts LED to carry out fluorescent powder jet printing, until all LED on a charging tray have sprayed;
(7) in step (5) and (6), control circuit drives material loading stepper motor, make a position of stock shelf lifting platform decline, make not spray charging tray and aim at charging tray guide rail, then, mobile hook device makes to hook material hook and is positioned under the material drag hole of stock shelf lining dish, and now feeding hook is just positioned under the shoving hole of the charging tray having sprayed;
(8) in step (5), (6) and after (7) complete, pass through control circuit, controlling gas circuit all rises hook material hook and feeding hook, and hook and moving do not spray charging tray to spraying workspace, the charging tray that simultaneously also promotes to have sprayed advances, arrive behind workspace when not spraying charging tray, controlling gas circuit makes hook material hook drop to initial position, then feeding hook continues to promote to have sprayed charging tray and advance and deliver on rewinding frame, then controlling gas circuit makes feeding hook drop to initial position, and make blanking rack lifting platform rise a position, make the empty charging tray bit alignment charging tray guide rail of bin,
(9) repeating step (5)-step (8) then, until the LED in all charging trays on stock shelf has sprayed.
The relative prior art 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.Reduce the kind that production different LED product fluorescent material applies the required coating equipment of link, production efficiency is provided, thereby greatly reduces production and the maintenance cost of enterprise.
(2) be completely free of traditional some glue coating method, by controlled high-accuracy atomizer, use high pressure draught by the mixed liquor atomization of fluorescent material and volatilization liquid, with spray pattern, to LED chip, enforcement applies.Adopt atomizing spraying mode, can control more accurately quantity for spray and the uniformity of fluorescent material.
Accompanying drawing explanation
Fig. 1 is the full-automatic fluorescent material coating apparatus structure of the present invention figure;
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 section block diagram in the present invention;
Fig. 9 is the inventive method flow chart.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but implementation method 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 comprises frame 1, frame 1 below is fixed with main control box 12 and industrial computer main frame 16, frame 1 top is provided with XYZ axle motion platform 8, charging tray tractor 5, shower nozzle control cabinet 10, waste material box 13 and cleaning sponge 14, charging tray tractor 5 is positioned at the below, 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 tops are provided with protective plate muscle 6, in main control box 12, control circuit is installed, spray equipment 9 and image collecting device 11 are installed on the Z axis moving slider 15 of XYZ axle motion platform 8, shower nozzle control cabinet 10 tops are fixed with 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 workbench for whole equipment, protects main control box 12 and industrial computer main frame 16 simultaneously; Main control box 12 is mainly realized a series of control and the testings 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 is mainly realized the accurate movement of spray equipment 9 and image collecting device 11; In shower nozzle control cabinet 10, printhead controller is installed, is mainly used in controlling the spraying process of shower nozzle; Charging tray tractor 5 mainly complete and from feeding device 3, hook feeding dish, transport charging tray to workspace, push charging tray enter the work such as blanking device 4; Waste material box 13 is mainly used in the waste liquid producing when collecting the waste material of the empty spray of shower nozzle and cleaning shower nozzle; Cleaning sponge 14 is mainly used in wiping and clean shower nozzle; Spray equipment 9 mainly completes the spraying work of fluorescent material; Image collecting device 11 gathers and obtains stable LED image, and imports the image processing system of industrial computer main frame 16 into; Feeding device 3 is for the placement of stock shelf and move up and down; Blanking device 4 is for the placement of blanking rack and move up and down.
As shown in Figure 2, XYZ axle motion platform 8 comprises directions X drive lead screw 32 and directions X 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, directions X servomotor 20, Y-direction servomotor 21 and Z direction servomotor 22 are fixed on directions X support 35, on Y-direction support 36 and Z direction support 37, on directions X support 35, be connected with X-axis left limit switch 23, X-axis right limit switch 25 and X-axis Zero-point switch 24, on Y-direction support 36, be connected with Y-axis front limit switch 26, limit switch 28 and Y-axis Zero-point switch 27 after Y-axis, on Z direction support 37, be connected with Z axis upper limit position switch 29, Z axis lower position switch 31 and Z axis Zero-point switch 30, directions X 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 directions X servomotor 20, determining of Y-direction servomotor 21 and Z direction servomotor 22 operational limit positions, in the time that control circuit detects the signal of these limit switches, motor just can not be again along current direction operation, can only be along its reverse direction operation, X-axis Zero-point switch 24, Y-axis Zero-point switch 27, be respectively used to directions X servomotor 20 with Z axis Zero-point switch 30, Y-direction servomotor 21 and Z direction servomotor 22 initialize determining of dead-center position, above-mentioned these switches 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 blanking screw mandrel 45 with material loading screw mandrel respectively with blanking rack lifting platform 41, material loading screw mandrel is connected with blanking stepper motor 43 respectively at material loading stepper motor 42 with blanking screw mandrel 45, material loading stepper motor 42 and blanking stepper motor 43 are separately fixed on material loading support 53 and blanking support 54, on material loading support 53, be connected with material loading upper limit position switch 47, material loading lower position switch 49 and material loading Zero-point switch 48, on blanking support 54, be connected with blanking upper limit position switch 50, blanking lower position switch 52 and blanking Zero-point switch 51, on stock shelf lifting platform 40 and blanking rack lifting platform 41, can fix respectively stock shelf 38 and blanking rack 39, stock shelf 38 and blanking rack 39 can be used for putting charging tray 46, material loading stepper motor 42 is connected with control circuit by step actuator with blanking stepper motor 43, material loading upper limit position switch 47, material loading lower position switch 49, blanking upper limit position switch 50 and blanking lower position switch 52 are respectively used to determining of material loading stepper motor 42 and blanking stepper motor 43 operational limit positions, in the time that control circuit detects the signal of these limit switches, motor just can not be again along current direction operation, can only be along its reverse direction operation, material loading Zero-point switch 48, be respectively used to material loading stepper motor 42 and blanking stepper motor 43 with blanking Zero-point switch 51 and initialize determining of dead-center position, above-mentioned these switches are directly connected with control circuit, on described charging tray 46, be milled be applicable to various components and parts locating hole 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 be placed under hot environment indeformable.
As shown in Figure 3 b, be the rotation enlarged drawing of A in Fig. 3 a, figure acceptance of the bid shows the particular location of material loading screw mandrel 44.
As shown in Figure 4, charging tray tractor 5 comprises charging tray guide rail 55, charging tray guide rail 55 inner sides are provided with material drag left limit switch 59, material drag right limit switch 61 and material drag Zero-point switch 60, groove 58 is installed in the middle of charging tray guide rail 55, groove 58 left ends are fixed with material drag stepper motor 57, material drag stepper motor 57 is by belt 62, transmission 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 tracheae, tracheae is by solenoid control, magnetic valve is connected with control circuit, material drag left limit switch 59, material drag right limit switch 61 is determined for material drag stepper motor 57 operational limit positions, in the time that control circuit detects the signal of these limit switches, motor just can not be again along current direction operation, can only be along its reverse direction operation, material drag Zero-point switch 60 initializes determining of dead-center position for material drag stepper motor 57, above-mentioned these switches are directly connected with control circuit.
As shown in Figure 5, be provided with and hook material hook 64 and feeding hook 65 in hook device 56, hook material hook 64 for hooking feeding dish 46 from stock shelf 38, feeding hook 65 enters blanking rack for pushing charging tray 46.
As shown in Figure 6, stock shelf 38, for putting charging tray 46, locating hole is arranged at stock shelf bottom, can be fixedly placed on stock shelf lifting platform 40, and can be placed under hot environment indeformable.Blanking rack 39 is the same with the structure of stock shelf 38.
As shown in Figure 7, charging tray 46 is for putting various components and parts to be processed, and charging tray 46 is applicable to putting into stock shelf 38 and blanking rack 39, and there are respectively a shoving hole 66 and material drag hole 67 in the two ends of charging tray 46.
As shown in Figure 8, the core control part of the present embodiment is industrial computer, and industrial computer completes communication and the control to image collecting device by USB interface, completes and communication and the control of motion control card by pci interface.Motion control card is received the signal of each limit switch, Zero-point switch and is completed the control to printhead controller, auxiliary reclay, motor servo driver and stepper motor driver by I/O interface board.Printhead controller, for atomizer is controlled, completes the spraying process of shower nozzle.Auxiliary reclay, for battery valve is controlled, completes the break-make control of gas circuit, thereby realizes hooking material hook and the rising of feeding hook and the control of decline.Motor servo driver is used for driving servomotor, and stepper motor driver is for Driving 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, the Shi Hengzhi image HV3151UC of Science and Technology Ltd. type video camera, M12140-MP camera lens, R15590-R type light source and light source analog controller that image capturing system adopts.What servo-drive adopted is the MINAS A series of servo drive system of MAT.
The software implement scheme of the present embodiment is as follows: in order to guarantee to greatest extent the requirement of real-time aspect of system, the present embodiment adopts professional GTS-400-PV-PCI type motion control card to complete the control of servomotor, stepper motor and the control of atomizer spraying process.Program in motion control card can depart from industrial computer independent operating in motion control card, thereby industrial computer can be freed from loaded down with trivial details motion logic manage.Meanwhile, on industrial computer, employing multithreading completes the control of full-automatic fluorescent powder coating technique process, improves the execution efficiency of system.
As shown in Figure 9, described in the present embodiment, the control method of full-automatic fluorescent material coating equipment comprises the steps and technological requirement:
(1) start full-automatic fluorescent material coating equipment;
(2) 16 control commands of industrial computer main frame, to control circuit, are controlled the origin of coordinates of directions X servomotor 20, Y-direction servomotor 21, Z direction servomotor 22, material loading stepper motor 42, blanking stepper motor 43 and 57 times predefineds of material drag stepper motor;
(3) control circuit control step driver, makes material drag stepper motor 57 drive transmissions make to hook material hook 64 and is arranged under the material drag hole 67 of stock shelf 38 charging trays 46;
(4) control circuit drives magnetic valve by auxiliary reclay, controls gas circuit and makes hook material hook 64 increase, and hook moving charging tray 46 to spraying workspace, and after putting in place, control gas circuit makes to hook material hook 64 and drops to initial position;
(5) image collecting device 11 carries out IMAQ to the LED position that will spray, and by image signal transmission to industrial computer main frame 16, industrial computer main frame 16 obtains the particular location of LED to picture signal analysis, then position signalling is transferred to control circuit;
(6) control circuit control servo-driver, drive XYZ axle motion platform 8, wiping is once on cleaning sponge 14 first to allow shower nozzle, then twice of waste material box 13 hollow spray, then according to the LED position signalling obtaining, control circuit drives gas circuit and mobile XYZ axle motion platform 8, starts LED to carry out fluorescent powder jet printing, until all LED on a charging tray have sprayed;
(7) in step (5) and (6), control circuit drives material loading stepper motor, make stock shelf lifting platform 40 position that declines, make not spray charging tray and aim at charging tray guide rail 55, then, mobile hook device 56 makes to hook material hook 64 and is positioned under the material drag hole 67 of stock shelf 38 lining dishes, and now feeding hook 65 is just positioned under the shoving hole 66 of the charging tray having sprayed;
(8) in step (5), (6) and after (7) complete, pass through control circuit, controlling gas circuit all rises hook material hook 64 and feeding hook 65, and hook and moving do not spray charging tray to spraying workspace, the charging tray that simultaneously also promotes to have sprayed advances, arrive behind workspace when not spraying charging tray, controlling gas circuit makes hook material hook 64 drop to initial position, then feeding hook 65 continues to promote to have sprayed charging tray and advances 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 position of rising, make the empty charging tray bit alignment charging tray guide rail 55 of bin,
(9) repeating step (5)-step (8) then, until the LED in all charging trays on stock shelf has sprayed.
As mentioned above, just can realize preferably the present invention.
Claims (9)
1. a full-automatic LED fluorescent material coating equipment, it is characterized in that: comprise frame, described frame below is fixed with main control box and industrial computer main frame, described frame top is provided with XYZ axle motion platform, charging tray tractor, shower nozzle control cabinet, waste material box and cleaning sponge, described charging tray tractor is positioned at the below, 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, one 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 top is provided with protective plate muscle, in described main control box, control circuit is installed, on the Z axis moving slider of described XYZ axle motion platform, spray equipment and image collecting device are installed, described shower nozzle control cabinet top is fixed with keyboard and the display screen of industrial computer, described control circuit, image collecting device is connected with industrial computer main frame respectively.
2. full-automatic LED fluorescent material coating equipment according to claim 1, is characterized in that: described XYZ axle motion platform comprises directions X drive lead screw and directions X servomotor, Y-direction drive lead screw and Y-direction servomotor and Z direction drive lead screw and Z direction servomotor, described directions X servomotor, Y-direction servomotor and Z direction servomotor are separately fixed at directions X support, on Y-direction support and Z direction support, on described directions X support, be connected with X-axis left limit switch, X-axis right limit switch and X-axis Zero-point switch, be connected with Y-axis front limit switch on described Y-direction support, limit switch and Y-axis Zero-point switch after Y-axis, be connected with Z axis upper limit position switch on described Z direction support, Z axis lower position switch and Z axis Zero-point switch, described directions X servomotor, Y-direction servomotor is connected with control circuit by servo-driver with Z direction servomotor, described X-axis left limit switch, X-axis right limit switch, Y-axis front limit switch, limit switch after Y-axis, Z axis upper limit position switch and Z axis lower position switch are respectively used to directions X servomotor, determining of Y-direction servomotor and Z direction servomotor operational limit position, in the time that control circuit detects the signal of these limit switches, motor just can not move along current direction again, can only be along its reverse direction operation, X-axis Zero-point switch, Y-axis Zero-point switch, be respectively used to directions X servomotor with Z axis Zero-point switch, Y-direction servomotor and Z direction servomotor initialize determining of dead-center position, described X-axis left limit switch, X-axis right limit switch, X-axis Zero-point switch, Y-axis front limit switch, 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.
3. 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 material loading screw mandrel, described material loading screw mandrel is connected with material loading stepper motor, described material loading stepper motor is fixed on material loading support, on described material loading support, be connected with material loading upper limit position switch, material loading lower position switch and material loading Zero-point switch, on described stock shelf lifting platform for fixing stock shelf, described stock shelf is not for spraying the placement of LED charging tray, on described charging tray, be milled be applicable to various components and parts locating hole and for dragging the material drag hole of charging tray, for pushing the shoving hole of charging tray, charging tray is for fixing various components and parts, and be placed under hot environment indeformable, described material loading stepper motor is connected with control circuit by step actuator, described material loading upper limit position switch, material loading lower position switch is determined for material loading stepper motor operational limit position, in the time that control circuit detects the signal of these limit switches, motor just can not be again along current direction operation, can only be along its reverse direction operation, material loading Zero-point switch initializes determining of dead-center position for material loading stepper motor, described material loading upper limit position switch, material loading lower position switch, material loading Zero-point switch, directly be connected with control circuit.
4. 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 stepper motor, described blanking stepper motor is fixed on blanking support, on described blanking support, be connected with blanking upper limit position switch, blanking lower position switch and blanking Zero-point switch, on described blanking rack lifting platform for fixing blanking rack, described blanking rack is for collecting the LED charging tray having sprayed, described blanking stepper motor is connected with control circuit by step actuator, described blanking upper limit position switch and blanking lower position switch are determined for blanking stepper motor operational limit position, in the time that control circuit detects the signal of these limit switches, blanking stepper motor just can not be again along current direction operation, can only be along its reverse direction operation, blanking Zero-point switch initializes determining of dead-center position for blanking stepper motor, described blanking upper limit position switch, blanking lower position switch is directly connected with control circuit with blanking Zero-point switch.
5. full-automatic LED fluorescent material coating equipment according to claim 1, it is characterized in that: described charging tray tractor comprises charging tray guide rail, described charging tray guide rail inner side is provided with material drag left limit switch, material drag right limit switch and material drag Zero-point switch, groove is installed in the middle of described charging tray guide rail, described groove left end is fixed with material drag stepper motor, described material drag stepper motor passes through belt, transmission 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 tracheae, described tracheae is by solenoid control, described magnetic valve is connected with control circuit, described material drag left limit switch, material drag right limit switch is determined for material drag stepper motor operational limit position, in the time that control circuit detects the signal of these limit switches, motor just can not be again along current direction operation, can only be along its reverse direction operation, material drag Zero-point switch initializes determining of dead-center position for material drag stepper motor, described material drag left limit switch, material drag right limit switch is directly connected with control circuit with material drag Zero-point switch.
6. full-automatic LED fluorescent material coating equipment according to claim 1, is characterized in that: described image collecting device is interconnected and formed by camera, camera lens and light source, described camera is connected with Z axis moving slider.
7. full-automatic LED fluorescent material coating equipment according to claim 1, it is characterized in that: described spray equipment is made up of atomizer, phosphor gel syringe, in described shower nozzle control cabinet, the printhead controller for controlling shower nozzle work is installed, atomizer is connected with the printhead controller being arranged in shower nozzle control cabinet by gas circuit respectively with phosphor gel syringe, and printhead controller is connected with the control circuit in main control box.
8. full-automatic LED fluorescent material coating equipment according to claim 1, is characterized 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 is received the signal of each limit switch, Zero-point switch and is completed the control to printhead controller, auxiliary reclay, motor servo driver and stepper motor driver by I/O interface board; Auxiliary reclay, for magnetic valve is controlled, completes the break-make control of gas circuit, thereby realizes hooking material hook and the rising of feeding hook and the control of decline.
9. for the control method of a kind of full-automatic fluorescent material coating equipment described in claim 1, it is characterized in that comprising the steps:
(1) start full-automatic fluorescent material coating equipment;
(2) industrial computer main frame is sent out control command to control circuit, and control directions X servomotor, Y-direction servomotor, Z direction servomotor, material loading stepper motor, blanking stepper motor and material drag stepper motor return the origin of coordinates of predefined;
(3) control circuit control step driver, makes material drag stepper motor drive transmission make to hook material hook and is arranged under the material drag hole of stock shelf charging tray;
(4) control circuit drives magnetic valve by auxiliary reclay, controls gas circuit and makes hook material hook increase, and hook moving charging tray to spraying workspace, and after putting in place, control gas circuit makes to hook material hook and drops to initial position;
(5) image collecting device carries out IMAQ to the LED position that will spray, and by image signal transmission to industrial computer main frame, industrial computer main frame obtains the particular location of LED to picture signal analysis, then position signalling is transferred to control circuit;
(6) control circuit control servo-driver, drive XYZ axle motion platform, wiping is once on cleaning sponge first to allow shower nozzle, then twice of waste material box hollow spray, then according to the LED position signalling obtaining, control circuit drives gas circuit and mobile XYZ axle motion platform, starts LED to carry out fluorescent powder jet printing, until all LED on a charging tray have sprayed;
(7) in step (5) and (6), control circuit drives material loading stepper motor, make a position of stock shelf lifting platform decline, make not spray charging tray and aim at charging tray guide rail, then, mobile hook device makes to hook material hook and is positioned under the material drag hole of stock shelf lining dish, and now feeding hook is just positioned under the shoving hole of the charging tray having sprayed;
(8) in step (5), (6) and after (7) complete, control circuit all rises hook material hook and feeding hook by controlling gas circuit, and hook and moving do not spray charging tray to spraying workspace, the charging tray that simultaneously also promotes to have sprayed advances, arrive behind workspace when not spraying charging tray, make hook material hook drop to initial position by controlling gas circuit, then feeding hook continues to promote to have sprayed charging tray and advance and deliver on rewinding frame, then controlling gas circuit makes feeding hook drop to initial position, and make blanking rack lifting platform rise a position, make the empty charging tray bit alignment charging tray guide rail of bin,
(9) repeating step (5)-step (8) then, until the LED in all charging trays on stock shelf has sprayed.
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| CN201410061135.9A CN103817052B (en) | 2014-02-21 | 2014-02-21 | Full-automatic LED fluorescent material coating equipment and control method thereof |
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| CN201410061135.9A CN103817052B (en) | 2014-02-21 | 2014-02-21 | Full-automatic LED fluorescent material coating equipment and control method thereof |
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| CN110473825A (en) * | 2019-07-24 | 2019-11-19 | 烟台职业学院 | A kind of Music Clip processing crystal solidifying apparatus and its application method of music player |
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