CN111558315A - LED lamp glue sealing process and device - Google Patents
LED lamp glue sealing process and device Download PDFInfo
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- CN111558315A CN111558315A CN202010434253.5A CN202010434253A CN111558315A CN 111558315 A CN111558315 A CN 111558315A CN 202010434253 A CN202010434253 A CN 202010434253A CN 111558315 A CN111558315 A CN 111558315A
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- 239000003292 glue Substances 0.000 title claims abstract description 261
- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 72
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims description 39
- 239000000049 pigment Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 25
- 238000007598 dipping method Methods 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000011049 filling Methods 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims description 18
- 239000002270 dispersing agent Substances 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 239000000084 colloidal system Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 206010027146 Melanoderma Diseases 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004040 coloring Methods 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000002990 reinforced plastic Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 5
- 239000004065 semiconductor Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/808—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers driven from the bottom of the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/12—Maintenance of mixers using mechanical means
- B01F35/123—Maintenance of mixers using mechanical means using scrapers for cleaning mixers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/36—Mixing of ingredients for adhesives or glues; Mixing adhesives and gas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/005—Processes relating to semiconductor body packages relating to encapsulations
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Coating Apparatus (AREA)
Abstract
The invention discloses a glue sealing process and equipment for an LED lamp, which comprises a glue dispensing barrel, wherein an outlet is formed in the outer side wall of the glue dispensing barrel in a penetrating manner, and a sealing cover is screwed on the periphery of the outlet; the method is characterized in that: the bottom of joining in marriage gluey bucket is link up through being fixed with a base through the screw, is fixed with a motor through the fix with screw in the inside bottom of base, runs through the bottom sealing connection who joins in marriage gluey bucket at the axle head of motor and has the column spinner, forms sealed the linking through seal ring and the bottom of joining in marriage gluey bucket in the bottom periphery of column spinner. According to the invention, by arranging the drainage structure, the stirring column and the scraper, and by arranging the synchronous rotating structure, the stirring range is expanded to the range from the center to the inner wall, so that the larger range is increased; the synchronous stirring efficiency of the outermost glue is ensured, and the defect that the outermost glue cannot be directly stirred to cause adhesion is avoided; the whole stirring quality of the device is improved through synchronous stirring, the stirring effect is improved, and the stirring efficiency is optimized.
Description
Technical Field
The invention relates to the technical field of LED lamp sealing equipment, in particular to an LED lamp sealing process and equipment.
Background
An LED, a light emitting diode, is a solid semiconductor device capable of converting electric energy into visible light, and can directly convert electricity into light, the heart of the LED is a semiconductor wafer, one end of the wafer is attached to a bracket, the other end of the wafer is a cathode, and the other end of the wafer is connected with the anode of a power supply, so that the whole wafer is packaged by epoxy resin; the semiconductor wafer is composed of two parts, one of which is a P-type semiconductor in which holes predominate and the other of which is an N-type semiconductor in which electrons predominate. When the two semiconductors are connected, a P-N junction is formed between the two semiconductors, when current is applied to the wafer through a conducting wire, electrons are pushed to a P area, the electrons and holes are recombined in the P area, and then energy is emitted in the form of photons, which is the principle of LED lamp luminescence, and the wavelength of light, namely the color of light, is determined by the materials forming the P-N junction; the LED is used as an indicating light source of instruments and meters at first, and then LEDs with various light colors are widely applied to traffic signal lamps and large-area display screens, so that good economic and social benefits are generated; for general illumination, a white light source is more needed for InGaN/YAG white LEDs, and by changing the chemical composition of YAG fluorescent powder and adjusting the thickness of the fluorescent powder layer, various white lights with color temperatures of 3500-10000K can be obtained. The method for obtaining white light through the blue LED has the advantages of simple structure, low cost and high technical maturity, so the method is most applied.
The LED glue dispensing device for LED production disclosed by Chinese patent publication No. CN109465980A comprises a bottom plate, a motor, a stirring blade and a stirring box, wherein a support is arranged at the upper end of the bottom plate, an installation plate is arranged at the upper end of the support, an electric push rod is arranged at the lower end of the installation plate, a column sleeve is arranged at the outer side of the electric push rod, and a lifting plate is arranged at the lower end of the electric push rod; the two ends of the lifting plate are provided with the sliding blocks, the two sides of the electric push rod are provided with the sliding rails, and the lower end of the lifting plate is provided with the motor, but the stirring device improves the stirring efficiency, but the stirring material is glue and has certain viscosity, and the stirring range of the device disclosed by the prior art cannot contact with the inner wall of the stirring structure, so that the stirring range is still limited; the glue of inner wall contact can't obtain the easy and interior wall production adhesion of stirring structure of direct stirring contact, can't guarantee the stirring quality to influence the problem of stirring effect.
Disclosure of Invention
The invention aims to provide a glue sealing process and equipment for an LED lamp, wherein a synchronous rotating structure is arranged to expand a stirring range to a range from the center to the inner wall, so that the larger range is increased; the synchronous stirring efficiency of the outermost glue is ensured, and the defect that the outermost glue cannot be directly stirred to cause adhesion is avoided; the whole stirring quality of the device is improved through synchronous stirring, the stirring effect is improved, and the stirring efficiency is optimized.
In order to achieve the purpose, the invention provides the following technical scheme: an LED lamp glue sealing process comprises the following process steps:
A) preparing materials, namely respectively preparing epoxy resin A glue and epoxy resin B glue according to the specific requirements of the LED lamp; preparing a coloring material and a dispersing agent; materials are distinguished and mixed according to the LED sealing glue requirement, and the preparation of the sealing glue material is finished;
B) preheating the mold strips, preparing the mold strips according to the quantity of the LED lamps needing to be sealed, then arranging the LED lamp sealing mold strips, and then visually checking whether each sealing mold strip has a poor appearance problem, wherein if the poor appearance problem does not exist, all the sealing mold strips are available; if the individual has the problem of poor appearance, separating the die strips with the poor appearance, and taking the available new material for use; selecting all available adhesive sealing cross bars, placing the adhesive sealing cross bars in a clean aluminum tray without impurities according to a uniform direction, and placing the adhesive sealing cross bars in an oven for heating after dust blowing; the heating temperature is 140 +/-10 ℃, and the heating time is 30-35 minutes;
C) preheating preparation, including pigment heating, diffusant heating and high-temperature epoxy A glue heating; b, putting the high-temperature epoxy resin A glue prepared in the step A into an oven by a worker for preheating, wherein the preheating temperature is 65 +/-5 ℃; the pigment heating step is as follows: placing the pigment prepared in the step A in a stainless steel appliance and preheating in an oven, wherein the preheating temperature is 65 +/-5 ℃; if the pigment has crystallization, the preheating temperature is mainly set at 150 +/-5 ℃ for more than half an hour; after the pigment is preheated, no small black spot exists, namely preheating is finished; the heating step of the diffusant comprises the following steps: placing the diffusant prepared in the step A in a stainless steel appliance and placing the stainless steel appliance in an oven for preheating, wherein the preheating temperature is 65 +/-5 ℃; completing the preheating preparation process;
D) c, glue preparation, namely respectively preparing the raw materials prepared in the step C according to a production instruction sheet of the current LED lamp, calculating the using amounts of the resin, the pigment and the dispersing agent according to the proportion on the production instruction sheet, and after the resin, the pigment and the dispersing agent are confirmed to be clear, starting to prepare glue according to the proportion through a glue preparation balance, wherein the glue preparation sequence comprises the pigment, the dispersing agent, glue A and glue B; the glue preparation tool is a glue preparation barrel;
E) vacuumizing the glue; d, taking the glue which is subjected to glue blending in the step D into a vacuum machine through a glue cup for vacuumizing, wherein the temperature of the vacuum machine is set to be 45 ℃, the vacuum time is 10 minutes, the glue cannot overflow the glue cup during vacuumizing, and when an air valve is opened after vacuum defoaming is finished, air is slowly introduced into the vacuum defoaming machine;
F) dipping the bracket with glue, and preheating the bracket at the temperature of 60 ℃; cleaning the glue dipping machine by using acetone, blowing the glue dipping machine by using an air gun, and installing a machine table; c, slowly injecting the glue of the corresponding type subjected to vacuum defoaming in the step E along the wall of the glue tank of the glue dipping machine, wherein the axis of the glue dipping machine and a chuck of the glue dipping machine are positioned on the same parallel line, and the thickness of the glue layer is 0.1-0.25 mm; then, picking up the preheated bracket by using two hands, gluing the bracket and the glue dipping wheel at an angle of 45 degrees, aligning the bracket cup to the roller for 2-3 seconds, and filling the bracket bowl mouth with glue to finish glue dipping;
G) b, pouring glue, namely spraying a release agent on the preheated die strip in the step B; cleaning the parts of the glue-pouring machine, putting the parts into an oven with the temperature of 70 +/-5 ℃ for preheating for 8-10 minutes, and starting glue pouring after the preparation is finished; selecting a needle head according to the size of the colloid subjected to vacuum defoaming in the step E, filling the glue vacuumized in the step E into a glue container tank of a glue filling machine along a glass rod inclined at 45 degrees and through a filter screen, injecting the glue into an LED forming die through the glue filling machine, inserting the bracket stained with the glue in the step F into the top of a clamping point of the LED forming die according to a specified direction, and completing glue filling;
H) g, short baking, namely putting the bracket subjected to glue filling in the step G into a non-polluted iron plate, and then putting the bracket into a baking oven for short baking, wherein the short baking temperature is 110-120 ℃, and the short baking time is three hours;
I) d, demolding, namely taking the material subjected to short baking in the step H out of the oven, placing the material on one side of a demolding machine, then placing the mold strip on a hook of the demolding machine, rightly placing the mold strip, pressing a wrench, and separating the support from the mold strip;
J) quality inspection and long baking, wherein the diode demoulded in the step I is inspected, the qualified diode does not have any problems of reverse insertion, shallow insertion, partial insertion, poor surface and the like, and if any problem exists, the diode is unqualified; and placing the qualified diodes in order according to a uniform direction, wrapping the diodes with paper, putting the wrapped diodes into an oven for long-time baking at the temperature of 125-135 ℃ for 10 hours, and taking out the diodes after the long-time baking is finished to obtain finished diodes.
In the glue preparation operation, the glue A is firstly put in and then the glue B is put in, the glue preparation operation is finished within ten minutes, and the longest glue filling time of the prepared glue is not more than two hours; in the glue preparation operation, a stirrer is used for stirring for 9-12 minutes until the A + B component, the pigment and the dispersing agent are fully mixed, and the standing time of the stirred glue cannot exceed 15 minutes.
An LED lamp glue sealing device comprises a glue mixing barrel, wherein an outlet is formed in the outer side wall of the glue mixing barrel in a penetrating mode, and a sealing cover is screwed on the periphery of the outlet; the method is characterized in that: the bottom end of the glue dispensing barrel is fixedly penetrated through a base through threads, a motor is fixedly arranged at the bottom end inside the base through a screw, a rotary column is connected to the shaft end of the motor in a sealing mode, penetrates through the bottom of the glue dispensing barrel, and the periphery of the bottom end of the rotary column is in sealing connection with the bottom of the glue dispensing barrel through a sealing washer; the periphery of the rotating column is provided with a surrounding arc in a surrounding manner, a plurality of groups of connecting columns are fixed on the outer wall of the rotating column through welding, each group of connecting columns consists of an upper connecting column and a lower connecting column which are relatively parallel, the front end of each group of connecting columns is respectively connected with the rear end of the scraper through a mounting structure, and a plurality of stirring columns are welded between each group of connecting columns; a top cover area is welded at the top end of the glue dispensing barrel, a feeding port is formed in the upper surface of the top cover area, an installation column penetrates through the outer wall of the feeding port, and two ends of the installation column are fixed through nuts respectively; a glue leading arc is arranged in the center of the surface of the mounting column, a glue leading line is arranged on one side of the glue leading arc, and drainage structures are respectively arranged on two sides of the glue leading line; a timing button is arranged on the surface of the glue dispensing barrel; the periphery of the stirring column is provided with a meter body, and the periphery of the meter body is welded with a contact arc.
The glue blending barrel is made of aluminum alloy with a barrel-shaped structure, the cross section of the glue blending barrel is circular, and the diameter of the upper end of the glue blending barrel is equal to that of the bottom end of the top cover area; the cross section of the upper end face of the top cover area is rectangular, the cross section of the lower end of the top cover area is circular, the length of the top cover area is equal to the length of the middle position of the mounting column, and the diameter of the bottom end of the top cover area is equal to the linear distance between two ends of the mounting column; the mounting column adopts the aluminum alloy of middle column both ends reducing structure, and the surperficial intermediate position arch of mounting column is provided with the gluey arc that draws of an arc structure, and the center extension line of mounting column and the peak extension line of drawing gluey arc coincide, draw gluey arc and be upper and lower parallel distribution.
The glue leading line adopts stripes with a transverse structure, the glue leading line is symmetrically distributed on two sides of the glue leading arc, and two ports of the glue leading line are respectively contacted with one side of the drainage structures on the two sides; the utility model discloses a glue mixing structure, including drainage structure, the bottom of drainage structure is connected to the stirring structure, the bottom of drainage structure adopts the stripe of vertical mechanism, and the bottom contact lower extreme of drainage structure draws the one end of gluey arc, and the drainage structure is plane taper binding off structure and connects and draw gluey arc, avoids glue to empty the congeals the phenomenon of the inside production of stirring structure, improves the collection performance of gelatinous structure.
The rotating column is made of columnar aluminum alloy, the diameter of the rotating column is not less than 5cm, the periphery of the rotating column is attached to the inner side wall of the fixed enclosing arc, the center point of the bottom end of the rotating column is overlapped with the center store at the bottom end of the glue distribution barrel, and the highest point of the rotating column is higher than the lowest end of the drainage structure and lower than the top point of the glue guiding arc at the lower end; the enclosure arc is an aluminum alloy plate with a surrounding structure, the highest point of the enclosure arc is superposed with the highest point of the rotating column, and the number of surrounding circles of the enclosure arc is at least three; the connecting column is made of an aluminum alloy with an inclined columnar structure, a horizontal columnar structure and a columnar structure, the bottom end of the connecting column is welded on the outer wall of the rotating column in an annular array mode, and the top end of the connecting column is welded with an installation structure with a columnar cavity structure; the surface of the mounting structure is penetrated and provided with at least two threaded openings, the radius of the inner wall of the mounting structure is equal to the radius of the outer wall of the rear-end columnar connecting structure of the scraper, the center driving performance of the device is ensured, and the stirring effect of the device is ensured by realizing stirring in a point-in face to colloidal structure.
Column connection structure is installed in the rear end of scraper blade end to end, column connection structure distributes about being the horizontality, run through on connection structure's surface and offer at least three screw thread trompil that is used for installing fixing bolt, the scraper blade adopts the reinforced plastics of hook column structure, and the coincidence of the two walls of front end of scraper blade outer wall, the outer wall of scraper blade 16 increases in proper order by preceding cross-sectional thickness to the back, the inner wall of mounting structure is contacted to the outer wall front end of scraper blade, the quantity of scraper blade must not be less than four, enlarge the stirring contact range of colloid structure, improve the stirring effect of stirring in-process outer periphery colloid structure.
The stirring column is made of columnar aluminum alloy, and the periphery of the stirring column is welded with a contact arc of a fan blade structure in a surrounding mode; the linear distance between the two ends of the contact arc is equal to that of the contact arc, the upper end of the contact arc is in contact with the lower surface of the upper end connecting column, and the lower end of the contact arc is in contact with the upper surface of the lower end connecting column.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the LED lamp glue sealing equipment, the external scraper plate structure is arranged, so that the contact effect between the stirring structure of the device and the inner wall is improved, the defect that the stirring cannot be obtained due to the bonding of glue on the inner wall is overcome, the overall use experience of the device is improved, and the stirring quality is optimized.
2. According to the LED lamp glue sealing equipment, the stirring range is enlarged, the stirring performance of glue at each position in a stirring state is improved, the synchronous stirring efficiency of the glue is improved, the defect that the existing stirring range is small and an external structure can only be driven by a central structure is overcome, the glue in each range is stirred by adopting the peripheral structure, and the stirring effect is optimized.
Drawings
FIG. 1 is a schematic structural view of a seamless steel pipe processing apparatus according to the present invention;
FIG. 2 is a schematic top view of the glue dispensing barrel of the present invention;
FIG. 3 is a schematic top view of the top cap section of the present invention;
FIG. 4 is a schematic view of the attachment of the rear end of the flight and the mounting structure of the present invention;
FIG. 5 is a schematic view of the stirring column of the present invention;
FIG. 6 is a schematic view of the external structure of the present invention;
FIG. 7 is a schematic view of a process flow structure of the LED lamp sealing process of the present invention.
In the figure: 1-glue dispensing barrel, 2-base, 3-motor, 4-top cover area, 5-material inlet, 6-mounting column, 7-nut, 8-glue guiding arc, 9-glue guiding line, 10-drainage structure, 11-outlet, 12-sealing cover, 13-rotating column, 14-surrounding arc, 15-connecting column, 16-scraper, 17-stirring column, 171-meter body, 172-contact arc, 18-mounting structure and 19-timing button.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
With reference to fig. 7, an LED lamp sealing process includes the following process steps:
A) preparing materials, namely respectively preparing epoxy resin A glue and epoxy resin B glue according to the specific requirements of the LED lamp; preparing a coloring material and a dispersing agent; materials are distinguished and mixed according to the LED sealing glue requirement, and the preparation of the sealing glue material is finished;
B) preheating the mold strips, preparing the mold strips according to the quantity of the LED lamps needing to be sealed, then arranging the LED lamp sealing mold strips, and then visually checking whether each sealing mold strip has a poor appearance problem, wherein if the poor appearance problem does not exist, all the sealing mold strips are available; if the individual has the problem of poor appearance, separating the die strips with the poor appearance, and taking the available new material for use; selecting all available adhesive sealing cross bars, placing the adhesive sealing cross bars in a clean aluminum tray without impurities according to a uniform direction, and placing the adhesive sealing cross bars in an oven for heating after dust blowing; the heating temperature is 140 +/-10 ℃, and the heating time is 30-35 minutes;
C) preheating preparation, including pigment heating, diffusant heating and high-temperature epoxy A glue heating; b, putting the high-temperature epoxy resin A glue prepared in the step A into an oven by a worker for preheating, wherein the preheating temperature is 65 +/-5 ℃; the pigment heating step is as follows: placing the pigment prepared in the step A in a stainless steel appliance and preheating in an oven, wherein the preheating temperature is 65 +/-5 ℃; if the pigment has crystallization, the preheating temperature is mainly set at 150 +/-5 ℃ for more than half an hour; after the pigment is preheated, no small black spot exists, namely preheating is finished; the heating step of the diffusant comprises the following steps: placing the diffusant prepared in the step A in a stainless steel appliance and placing the stainless steel appliance in an oven for preheating, wherein the preheating temperature is 65 +/-5 ℃; completing the preheating preparation process;
D) c, glue preparation, namely respectively preparing the raw materials prepared in the step C according to a production instruction sheet of the current LED lamp, calculating the using amounts of the resin, the pigment and the dispersing agent according to the proportion on the production instruction sheet, and after the resin, the pigment and the dispersing agent are confirmed to be clear, starting to prepare glue according to the proportion through a glue preparation balance, wherein the glue preparation sequence comprises the pigment, the dispersing agent, glue A and glue B; the glue preparation tool is a glue preparation barrel;
E) vacuumizing the glue; d, taking the glue which is subjected to glue blending in the step D into a vacuum machine through a glue cup for vacuumizing, wherein the temperature of the vacuum machine is set to be 45 ℃, the vacuum time is 10 minutes, the glue cannot overflow the glue cup during vacuumizing, and when an air valve is opened after vacuum defoaming is finished, air is slowly introduced into the vacuum defoaming machine;
F) dipping the bracket with glue, and preheating the bracket at the temperature of 60 ℃; cleaning the glue dipping machine by using acetone, blowing the glue dipping machine by using an air gun, and installing a machine table; c, slowly injecting the glue of the corresponding type subjected to vacuum defoaming in the step E along the wall of the glue tank of the glue dipping machine, wherein the axis of the glue dipping machine and a chuck of the glue dipping machine are positioned on the same parallel line, and the thickness of the glue layer is 0.1-0.25 mm; then, picking up the preheated bracket by using two hands, gluing the bracket and the glue dipping wheel at an angle of 45 degrees, aligning the bracket cup to the roller for 2-3 seconds, and filling the bracket bowl mouth with glue to finish glue dipping;
G) b, pouring glue, namely spraying a release agent on the preheated die strip in the step B; cleaning the parts of the glue-pouring machine, putting the parts into an oven with the temperature of 70 +/-5 ℃ for preheating for 8-10 minutes, and starting glue pouring after the preparation is finished; selecting a needle head according to the size of the colloid subjected to vacuum defoaming in the step E, filling the glue vacuumized in the step E into a glue container tank of a glue filling machine along a glass rod inclined at 45 degrees and through a filter screen, injecting the glue into an LED forming die through the glue filling machine, inserting the bracket stained with the glue in the step F into the top of a clamping point of the LED forming die according to a specified direction, and completing glue filling;
H) g, short baking, namely putting the bracket subjected to glue filling in the step G into a non-polluted iron plate, and then putting the bracket into a baking oven for short baking, wherein the short baking temperature is 110-120 ℃, and the short baking time is three hours;
I) d, demolding, namely taking the material subjected to short baking in the step H out of the oven, placing the material on one side of a demolding machine, then placing the mold strip on a hook of the demolding machine, rightly placing the mold strip, pressing a wrench, and separating the support from the mold strip;
J) quality inspection and long baking, wherein the diode demoulded in the step I is inspected, the qualified diode does not have any problems of reverse insertion, shallow insertion, partial insertion, poor surface and the like, and if any problem exists, the diode is unqualified; and placing the qualified diodes in order according to a uniform direction, wrapping the diodes with paper, putting the wrapped diodes into an oven for long-time baking at the temperature of 125-135 ℃ for 10 hours, and taking out the diodes after the long-time baking is finished to obtain finished diodes.
In the glue preparation operation, the glue A is firstly put in and then the glue B is put in, the glue preparation operation is finished within ten minutes, and the longest glue filling time of the prepared glue is not more than two hours; in the glue preparation operation, a stirrer is used for stirring for 9-12 minutes until the A + B component, the pigment and the dispersing agent are fully mixed, and the standing time of the stirred glue cannot exceed 15 minutes.
With reference to fig. 1-6, an LED lamp sealing device includes a glue dispensing barrel 1, an outlet 11 is formed through an outer side wall of the glue dispensing barrel 1, and a sealing cover 12 is screwed on the periphery of the outlet 11; the method is characterized in that: a base 2 is fixedly penetrated through the bottom end of the glue mixing barrel 1 through threads, a motor 3 is fixedly arranged at the bottom end inside the base 2 through a screw, a rotary column 13 is hermetically connected to the bottom of the motor 3 penetrating through the glue mixing barrel 1 at the shaft end, and the periphery of the bottom end of the rotary column 13 is hermetically connected with the bottom of the glue mixing barrel 1 through a sealing gasket; the periphery of the rotating column 13 is provided with a surrounding arc 14 in a surrounding manner, a plurality of groups of connecting columns 15 are fixed on the outer wall of the rotating column 13 through welding, each group of connecting columns 15 consists of an upper connecting column 15 and a lower connecting column 15 which are relatively parallel, the front end of each group of connecting columns 15 is respectively connected with the rear end of a scraper 16 through a mounting structure 18, and a plurality of stirring columns 17 are welded between each group of connecting columns 15; the top end of the glue dispensing barrel 1 is welded with a top cover area 4, a feeding opening 5 is formed in the upper surface of the top cover area 4, an installation column 6 penetrates through the outer wall of the feeding opening 5, and two ends of the installation column 6 are fixed through nuts 7 respectively; a glue leading arc 8 is arranged at the center of the surface of the mounting column 6, a glue leading line 9 is arranged on one side of the glue leading arc 8, and drainage structures 10 are respectively arranged on two sides of the glue leading line 9; a timing button 19 is arranged on the surface of the glue dispensing barrel 1; the periphery of the stirring column 17 is provided with a meter body 171, and a contact arc 172 is welded on the periphery of the meter body 171.
The glue mixing barrel 1 is made of aluminum alloy with a barrel-shaped structure, the cross section of the glue mixing barrel 1 is circular, and the diameter of the upper end of the glue mixing barrel 1 is equal to the diameter of the bottom end of the top cover area 4; the cross section of the upper end face of the top cover area 4 is rectangular, the cross section of the lower end of the top cover area 4 is circular, the length of the top cover area 4 is equal to the length of the middle position of the mounting column 6, and the diameter of the bottom end of the top cover area 4 is equal to the linear distance between the two ends of the mounting column 6; the mounting column 6 is made of aluminum alloy with a middle columnar structure and a diameter reducing structure at two ends, the middle position of the surface of the mounting column 6 is convexly provided with a glue leading arc 8 with an arc-shaped structure, the central extension line of the mounting column 6 is coincided with the highest point extension line of the glue leading arc 8, and the glue leading arcs 8 are distributed in an up-and-down parallel manner.
The adhesive leading line 9 adopts stripes with a transverse structure, the adhesive leading line 9 is symmetrically distributed on two sides of the adhesive leading arc 8, and two ports of the adhesive leading line 9 are respectively contacted with one side of the drainage structures 10 on two sides; the drainage structure 10 adopts the stripes of the vertical mechanism, the bottom end of the drainage structure 10 is contacted with one end of the lower glue leading arc 8, and the drainage structure 10 is a plane taper closing-up structure and is connected with the glue leading arc 8.
The rotating column 13 is made of columnar aluminum alloy, the diameter of the rotating column 13 is not less than 5cm, the periphery of the rotating column 13 is attached to the inner side wall of the fixed enclosing arc 14, the center point of the bottom end of the rotating column 13 is overlapped with the center store at the bottom end of the glue dispensing barrel 1, and the highest point of the rotating column 13 is higher than the lowest end of the drainage structure 10 and lower than the top point of the glue dispensing arc 8 at the lower end; the arc 14 is made of aluminum alloy plates with a surrounding structure, the highest point of the arc 14 is superposed with the highest point of the rotating column 13, and the number of surrounding turns of the arc 14 is at least three; the connecting column 15 is made of an aluminum alloy with an inclined columnar structure, a horizontal columnar structure and a columnar structure, the bottom end of the connecting column 15 is welded on the outer wall of the rotating column 13 in an annular array mode, and the top end of the connecting column 15 is welded with an installation structure 18 with a columnar cavity structure; at least two threaded openings are formed in the surface of the mounting structure 18 in a penetrating mode, and the radius of the inner wall of the mounting structure 18 is equal to the radius of the outer wall of the rear end cylindrical connecting structure of the scraper 16.
Column connection structure is installed in the rear end of scraper blade 16 end-to-end, and column connection structure distributes about being the horizontality, runs through the screw thread trompil of seting up at least three being used for installing fixing bolt on connection structure's surface, and scraper blade 16 adopts the reinforced plastics of hook column structure, and the coincidence of the two walls of front end of scraper blade 16 outer wall, and scraper blade 16's outer wall increases in proper order by preceding cross-sectional thickness to the back, and the inner wall of mounting structure 18 is touched to the outer wall front end of scraper blade, and scraper blade 16's quantity must not be less than four.
The stirring column 17 is made of columnar aluminum alloy, and the periphery of the stirring column 17 is circumferentially welded with a contact arc 172 of a fan blade structure; the linear distance between the two ends of the contact arc 172 is equal to the linear distance of the contact arc 172, the upper end of the contact arc 172 contacts the lower surface of the upper end connection column 15, and the lower end of the contact arc 172 contacts the upper surface of the lower end connection column 15.
All parts used in the application document are standard parts, the specific connection mode of all parts adopts conventional means such as mature bolts, welding and the like in the prior art, machinery, parts and electrical equipment adopt conventional models in the prior art, circuit connection adopts the conventional connection mode in the prior art, and detailed description is not given here.
The invention relates to LED lamp sealing equipment, wherein the model of a motor 3 is a YE3 motor, the motor 3 is connected with a timing button 19 through a lead, the timing button 19 is a DXT15 washing timing button, a user pours raw materials into the interior of a glue mixing barrel 1, a colloidal structure enters through a material inlet 5 when pouring the raw materials, contacts a glue guiding arc 8, the highest point of the glue guiding arc 8 contacts the colloidal structure, the colloidal structure is guided by the highest point of the glue guiding arc 8 through a glue guiding line 9 and finally is guided by a drainage structure 10 to fall into the glue mixing barrel 1, then the timing button 19 is rotated, stirring time is set, after the setting is finished, the motor 3 starts to be electrified and rotated to drive an upper end rotating column 13 to start to rotate, meanwhile, a connecting column 15 on the surface of the rotating column 13 drives a scraper 16 to rotate, meanwhile, the connecting column 15 drives a stirring column 17 to rotate, and in the working state, the rotating column 13 drives a surrounding arc 14 to stir glue at the, enclose arc 14 and move the surface of glue contact column 13 with the side, the contact arc 172 on stirring post 17 surface that simultaneously spliced pole 15 is connected cuts into the glue of column 13 both sides by the point income face, the front end of scraper blade 16 is joined in marriage the inner wall of gluey bucket 1 by the contact of front end lateral wall simultaneously, and drive the glue of scraper blade 16 contact gluey bucket 1 inner wall department through the front end of scraper blade 16, realize that three point construction does work simultaneously, carry out all-round multi-angle stirring to glue, avoid outside glue to need inside glue to drive the unable drawback of guaranteeing of outside stirring quality that the stirring formed.
In summary, the following steps: according to the LED lamp sealing equipment, the glue guiding arc 8, the scraper 16, the stirring column 17 and the flow guiding structure 10 are arranged, and the synchronous rotating structure is arranged to expand the stirring range to the center to the inner wall, so that the large range is enlarged; the synchronous stirring efficiency of the outermost glue is ensured, and the defect that the outermost glue cannot be directly stirred to cause adhesion is avoided; the whole stirring quality of the device is improved through synchronous stirring, the stirring effect is improved, and the stirring efficiency is optimized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An LED lamp glue sealing process is characterized by comprising the following process steps:
A) preparing materials, namely respectively preparing epoxy resin A glue and epoxy resin B glue according to the specific requirements of the LED lamp; preparing a coloring material and a dispersing agent; materials are distinguished and mixed according to the LED sealing glue requirement, and the preparation of the sealing glue material is finished;
B) preheating the mold strips, preparing the mold strips according to the quantity of the LED lamps needing to be sealed, then arranging the LED lamp sealing mold strips, and then visually checking whether each sealing mold strip has a poor appearance problem, wherein if the poor appearance problem does not exist, all the sealing mold strips are available; if the individual has the problem of poor appearance, separating the die strips with the poor appearance, and taking the available new material for use; selecting all available adhesive sealing cross bars, placing the adhesive sealing cross bars in a clean aluminum tray without impurities according to a uniform direction, and placing the adhesive sealing cross bars in an oven for heating after dust blowing; the heating temperature is 140 +/-10 ℃, and the heating time is 30-35 minutes;
C) preheating preparation, including pigment heating, diffusant heating and high-temperature epoxy A glue heating; b, putting the high-temperature epoxy resin A glue prepared in the step A into an oven by a worker for preheating, wherein the preheating temperature is 65 +/-5 ℃; the pigment heating step is as follows: placing the pigment prepared in the step A in a stainless steel appliance and preheating in an oven, wherein the preheating temperature is 65 +/-5 ℃; if the pigment has crystallization, the preheating temperature is mainly set at 150 +/-5 ℃ for more than half an hour; after the pigment is preheated, no small black spot exists, namely preheating is finished; the heating step of the diffusant comprises the following steps: placing the diffusant prepared in the step A in a stainless steel appliance and placing the stainless steel appliance in an oven for preheating, wherein the preheating temperature is 65 +/-5 ℃; completing the preheating preparation process;
D) c, glue preparation, namely respectively preparing the raw materials prepared in the step C according to a production instruction sheet of the current LED lamp, calculating the using amounts of the resin, the pigment and the dispersing agent according to the proportion on the production instruction sheet, and after the resin, the pigment and the dispersing agent are confirmed to be clear, starting to prepare glue according to the proportion through a glue preparation balance, wherein the glue preparation sequence comprises the pigment, the dispersing agent, glue A and glue B; the glue preparation tool is a glue preparation barrel;
E) vacuumizing the glue; d, taking the glue which is subjected to glue blending in the step D into a vacuum machine through a glue cup for vacuumizing, wherein the temperature of the vacuum machine is set to be 45 ℃, the vacuum time is 10 minutes, the glue cannot overflow the glue cup during vacuumizing, and when an air valve is opened after vacuum defoaming is finished, air is slowly introduced into the vacuum defoaming machine;
F) dipping the bracket with glue, and preheating the bracket at the temperature of 60 ℃; cleaning the glue dipping machine by using acetone, blowing the glue dipping machine by using an air gun, and installing a machine table; c, slowly injecting the glue of the corresponding type subjected to vacuum defoaming in the step E along the wall of the glue tank of the glue dipping machine, wherein the axis of the glue dipping machine and a chuck of the glue dipping machine are positioned on the same parallel line, and the thickness of the glue layer is 0.1-0.25 mm; then, picking up the preheated bracket by using two hands, gluing the bracket and the glue dipping wheel at an angle of 45 degrees, aligning the bracket cup to the roller for 2-3 seconds, and filling the bracket bowl mouth with glue to finish glue dipping;
G) b, pouring glue, namely spraying a release agent on the preheated die strip in the step B; cleaning the parts of the glue-pouring machine, putting the parts into an oven with the temperature of 70 +/-5 ℃ for preheating for 8-10 minutes, and starting glue pouring after the preparation is finished; selecting a needle head according to the size of the colloid subjected to vacuum defoaming in the step E, filling the glue vacuumized in the step E into a glue container tank of a glue filling machine along a glass rod inclined at 45 degrees and through a filter screen, injecting the glue into an LED forming die through the glue filling machine, inserting the bracket stained with the glue in the step F into the top of a clamping point of the LED forming die according to a specified direction, and completing glue filling;
H) g, short baking, namely putting the bracket subjected to glue filling in the step G into a non-polluted iron plate, and then putting the bracket into a baking oven for short baking, wherein the short baking temperature is 110-120 ℃, and the short baking time is three hours;
I) d, demolding, namely taking the material subjected to short baking in the step H out of the oven, placing the material on one side of a demolding machine, then placing the mold strip on a hook of the demolding machine, rightly placing the mold strip, pressing a wrench, and separating the support from the mold strip;
J) quality inspection and long baking, wherein the diode demoulded in the step I is inspected, the qualified diode does not have any problems of reverse insertion, shallow insertion, partial insertion, poor surface and the like, and if any problem exists, the diode is unqualified; and placing the qualified diodes in order according to a uniform direction, wrapping the diodes with paper, putting the wrapped diodes into an oven for long-time baking at the temperature of 125-135 ℃ for 10 hours, and taking out the diodes after the long-time baking is finished to obtain finished diodes.
2. The LED lamp sealing process according to claim 1, wherein: in the glue preparation operation, the glue A is firstly put in and then the glue B is put in, the glue preparation operation is finished within ten minutes, and the longest glue filling time of the prepared glue is not more than two hours; in the glue preparation operation, a stirrer is used for stirring for 9-12 minutes until the A + B component, the pigment and the dispersing agent are fully mixed, and the standing time of the stirred glue cannot exceed 15 minutes.
3. An LED lamp glue sealing device comprises a glue dispensing barrel (1), wherein an outlet (11) penetrates through the outer side wall of the glue dispensing barrel (1), and a sealing cover (12) is screwed on the periphery of the outlet (11); the method is characterized in that: a base (2) is fixedly penetrated through the bottom end of the glue mixing barrel (1) through threads, a motor (3) is fixedly arranged at the bottom end inside the base (2) through a screw, a rotary column (13) is connected to the shaft end of the motor (3) through the bottom of the glue mixing barrel (1) in a sealing manner, and the periphery of the bottom end of the rotary column (13) is in sealing connection with the bottom of the glue mixing barrel (1) through a sealing gasket; the periphery of the rotating column (13) is provided with a surrounding arc (14) in a surrounding mode, a plurality of groups of connecting columns (15) are fixed on the outer wall of the rotating column (13) through welding, each group of connecting columns (15) is composed of an upper connecting column (15) and a lower connecting column (15) which are parallel relatively, the front end of each group of connecting columns (15) is connected with the rear end of the scraper (16) through a mounting structure (18), and a plurality of stirring columns (17) are welded between every two groups of connecting columns (15); the top end of the glue dispensing barrel (1) is welded with a top cover area (4), the upper surface of the top cover area (4) is provided with a feeding opening (5), the outer wall of the feeding opening (5) is provided with an installation column (6) in a penetrating manner, and two ends of the installation column (6) are fixed through nuts (7) respectively; a glue leading arc (8) is arranged in the center of the surface of the mounting column (6), a glue leading line (9) is arranged on one side of the glue leading arc (8), and drainage structures (10) are respectively arranged on two sides of the glue leading line (9); a timing button (19) is arranged on the surface of the glue dispensing barrel (1); the periphery of the stirring column (17) is provided with a meter body (171), and the periphery of the meter body (171) is welded with a contact arc (172).
4. The LED lamp sealing equipment according to claim 3, wherein: the glue preparation barrel (1) is made of aluminum alloy with a barrel-shaped structure, the cross section of the glue preparation barrel (1) is circular, and the diameter of the upper end of the glue preparation barrel (1) is equal to that of the bottom end of the top cover area (4); the cross section of the upper end face of the top cover area (4) is rectangular, the cross section of the lower end of the top cover area (4) is circular, the length of the top cover area (4) is equal to the length of the middle position of the mounting column (6), and the diameter of the bottom end of the top cover area (4) is equal to the linear distance between the two ends of the mounting column (6); the mounting column (6) is made of aluminum alloy with a middle columnar structure and a diameter reducing structure at two ends, the middle position of the surface of the mounting column (6) is convexly provided with a glue leading arc (8) with an arc-shaped structure, the central extension line of the mounting column (6) is coincided with the peak extension line of the glue leading arc (8), and the glue leading arcs (8) are distributed in an up-and-down parallel manner.
5. The LED lamp sealing equipment according to claim 3, wherein: the glue leading line (9) adopts stripes with a transverse structure, the glue leading lines (9) are symmetrically distributed on two sides of the glue leading arc (8), and two ports of each glue leading line (9) are respectively contacted with one side of the drainage structures (10) on the two sides; the drainage structure (10) adopts the stripes of a vertical mechanism, the bottom end of the drainage structure (10) is in contact with one end of the lower glue leading arc (8), and the drainage structure (10) is of a plane taper closing-up structure and is connected with the glue leading arc (8).
6. The LED lamp sealing equipment according to claim 3, wherein: the rotating column (13) is made of columnar aluminum alloy, the diameter of the rotating column (13) is not less than 5cm, the periphery of the rotating column (13) is attached to the inner side wall of the fixed surrounding arc (14), the bottom center point of the rotating column (13) is overlapped with the center store at the bottom end of the glue dispensing barrel (1), and the highest point of the rotating column (13) is higher than the lowest end of the drainage structure (10) and lower than the top point of the lower glue dispensing arc (8); the enclosure arc (14) is an aluminum alloy plate with a surrounding structure, the highest point of the enclosure arc (14) is superposed with the highest point of the rotating column (13), and the number of surrounding circles of the enclosure arc (14) is at least three; the connecting column (15) is made of an aluminum alloy with an inclined columnar-to-flat columnar structure, the bottom end of the connecting column (15) is welded on the outer wall of the rotating column (13) in an annular array mode, and the top end of the connecting column (15) is welded with an installation structure (18) with a columnar cavity structure; the surface of the mounting structure (18) is provided with at least two threaded openings in a penetrating manner, and the radius of the inner wall of the mounting structure (18) is equal to the radius of the outer wall of the rear-end columnar connecting structure of the scraper (16).
7. The LED lamp sealing equipment according to claim 3, wherein: the rear end of scraper blade (6) is put and is installed column connection structure, column connection structure distributes about being the horizontality, run through the screw thread trompil of seting up at least three being used for installing fixing bolt on connection structure's surface, scraper blade (6) adopt the reinforced plastics of hook column structure, and the coincidence of the front end two walls of scraper blade (6) outer wall, the outer wall of scraper blade (6) is increased in proper order by preceding cross-sectional thickness to the back, the inner wall of mounting structure (18) is touched to the outer wall front end of scraper blade, the quantity of scraper blade (16) must not be less than four.
8. The LED lamp sealing equipment according to claim 3, wherein: the stirring column (17) is made of columnar aluminum alloy, and the periphery of the stirring column (17) is welded with a contact arc (172) of a fan blade structure in a surrounding mode; the linear distance between the two ends of the contact arc (172) is equal to that of the contact arc (172), the upper end of the contact arc (172) is in contact with the lower surface of the upper end connecting column (15), and the lower end of the contact arc (172) is in contact with the upper surface of the lower end connecting column (15).
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| CN202010434253.5A CN111558315A (en) | 2020-05-21 | 2020-05-21 | LED lamp glue sealing process and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010434253.5A CN111558315A (en) | 2020-05-21 | 2020-05-21 | LED lamp glue sealing process and device |
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Application publication date: 20200821 |