CN207103160U - Fluorescent material screening plant is used in a kind of roll type LED encapsulation - Google Patents
Fluorescent material screening plant is used in a kind of roll type LED encapsulation Download PDFInfo
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- CN207103160U CN207103160U CN201720296660.8U CN201720296660U CN207103160U CN 207103160 U CN207103160 U CN 207103160U CN 201720296660 U CN201720296660 U CN 201720296660U CN 207103160 U CN207103160 U CN 207103160U
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Abstract
The utility model discloses a kind of roll type LED encapsulation fluorescent material screening plant, the device sieves including at least two-stage rolling, every grade of drum screen is included in the drive mechanism that the roller bearing of horizontal direction parallel distribution and driving roller bearing rotate, drum screen is be arranged in parallel successively in vertical direction, and the spacing of roller bearing is successively decreased successively along the every one-level drum screen in direction from top to bottom.When device works, the fluorescent material that particle diameter is less than top layer drum screen roller bearing spacing falls into second level drum screen in the bottom, the fluorescent material that particle diameter is more than top layer drum screen roller bearing spacing is recovered to hopper, the fluorescent powder grain of different-grain diameter scope is distinguished by that analogy, apparatus structure is simple, it is easily operated, it is higher than traditional hand sieving automaticity, save human cost, suitable for mass industrialized production, fluorescent material particle diameter uniformity after screening is high, fluorescent material is easy to be well mixed with packaging plastic, reduce in packaging process to the requirement of packaging plastic mixing plant and operation difficulty.
Description
Technical field
The utility model belongs to LED lamp bead processing technique field, relates in particular to a kind of roll type LED encapsulation fluorescence
Dressing sieve separating device.
Background technology
In recent years, with rise of light emitting diode (LED) the semiconductor lighting cause in the whole world, white light LEDs are as new one
People are caused for light source greatly to pay close attention to.Compared with conventional light source, LED have colour rendering high (colour gamut is high, colour rendering index is high),
Brightness height, long lifespan, energy-conserving and environment-protective (low without heat radiation, power consumption), real-time color is controllable, reaction speed is fast (can be in high frequency
Operation), impact resistance vibrations many advantages, such as, be widely used to the skills such as the backlight, indicator lamp, general lighting of liquid crystal display
Art field.
In whole LED industry chain, LED encapsulation be a vital link, generally comprise die bond, bonding wire, dispensing,
Processing step, the wherein gluing process such as light splitting and packaging specifically refer to：Fluorescent material and encapsulation glue are mixed with to be glimmering first
Optical cement, then fluorescent glue is injected in LED support, protect chip and bonding line in LED support, fluorescent glue is in LED component
Except playing a protective role, it is often more important that the fluorescent material in fluorescent glue can send visible ray, fluorescent glue hair under the exciting of chip
The light and the exciting light of chip gone out is mutually compound, so as to realize different photochromic, brightness light transmittings, finally gives different types of
Luminescent device.
During dispensing, the amount of fluorescent material and fluorescent material coat equal in the fluorescent glue injected in each LED component
Even property, determine the actual color and brightness output of this collection of LED component.LED encapsulates manufacturer when carrying out glue process at present,
Generally the fluorescent material (generally two or more) of buying is directly mixed with encapsulation glue first, note is put after mixing
In LED support, but due to the often more than one of the fluorescent material in fluorescent glue, different types of fluorescent material particle size is not
One, and fluorescent material even of the same race, the particle diameter distribution that different batches are produced are also uneven, fluorescent material particle size distribution range is big,
Granular size is uneven.Fluorescent material particle diameter is inconsistent or particle size range is larger, can cause fluorescent material with packaging plastic shipwreck to mix
The problem of uniform, and fluorescent glue mixing is uneven, can cause the fluorescent glue water body although injected during dispensing in each LED support
Product is identical, but fluorescent material amount therein differs greatly, while fluorescent material skewness in LED support, is producing in batches
When, this species diversity can cause encapsulation after LED component intrinsic brilliance, Color uniformity it is poor, the output concentration degree of batch production is low.
Utility model content
Therefore, fluorescence of the technical problem to be solved in the utility model in the fluorescent glue in existing LED packaging technologies
Powder particles particle diameter difference is big, the problem of causing product brightness, Color uniformity difference, so as to propose one kind by fluorescent material according to particle diameter
The roll type LED fluorescent powder screening plant that difference is sorted.
In order to solve the above technical problems, the technical solution of the utility model is：
The utility model provides a kind of roll type LED encapsulation fluorescent material screening plant, and the screening plant is included at least
Two-stage rolling sieves, the driving that every grade of drum screen is included in the roller bearing of horizontal direction parallel distribution and drives the roller bearing to rotate
Mechanism, drum screens at different levels vertical direction be sequentially arranged and roller bearing be axially facing it is consistent and each along direction from top to bottom
The spacing of roller bearing is successively decreased successively in level drum screen.
Preferably, the rotating speed of the roller bearing is 10-600rpm/min.
Preferably, the spacing of adjacent roller bearing is 1-99 μm in every grade of drum screen.
Preferably, the roller bearing is installed in installation frame, roller bearing uniform parallel point in the installation frame
Cloth；The drive mechanism is motor.
Preferably, the screening plant includes level Four drum screen, first order drum screen, the second level are from top to bottom followed successively by
Drum screen, third level drum screen and fourth stage drum screen.
Preferably, the spacing of adjacent two roller bearings is 60-99 μm in the first order drum screen, the second level rolls
The spacing of adjacent two roller bearings is 40-50 μm in sieve, and the spacing of adjacent two roller bearings is 20-30 μ in the third level drum screen
M, the spacing of adjacent two roller bearings is 5-10 μm in the fourth stage drum screen.
Above-mentioned technical proposal of the present utility model has advantages below compared with prior art：
Fluorescent material screening plant is used in roll type LED encapsulation described in the utility model, and it includes at least two-stage rolling sieve, often
The drive mechanism that the level drum screen is included in the roller bearing of horizontal direction parallel distribution and drives the roller bearing to rotate, rollings at different levels
Sieve vertical direction be sequentially arranged and roller bearing be axially facing it is consistent, and along direction from top to bottom per one-level drum screen along roller bearing
Spacing successively decrease successively.When described device works, drum screen that the larger fluorescent material of particle size distribution range is brought to Front, particle diameter
Fluorescent material less than top layer drum screen roller bearing spacing falls into second level drum screen in the bottom, and particle diameter is more than top layer drum screen
The fluorescent material of roller bearing spacing is recovered to hopper, and similarly, if drum screen is arranged to multistage, particle diameter rolls less than second level drum screen
The fluorescent material of distance between axles falls into third level drum screen in the bottom, and particle diameter is more than the fluorescence of second level drum screen roller bearing spacing
Powder is recovered, and the fluorescent powder grain of different-grain diameter scope is distinguished, and apparatus structure is simple, easily operated, can be according to particle
Particle size carries out automatic sieving to fluorescent material, higher than traditional hand sieving automaticity, saves human cost, is suitable to
Mass industrialized production, the fluorescent material particle diameter uniformity after screening is high, and fluorescent material is easy to be well mixed with packaging plastic, reduced
To the requirement of packaging plastic mixing plant and operation difficulty in packaging process.
Brief description of the drawings
In order that content of the present utility model is more likely to be clearly understood, below according to specific implementation of the present utility model
Example and with reference to accompanying drawing, is described in further detail to the utility model, wherein
Fig. 1 is the structural representation of the roll type LED encapsulation fluorescent material screening plants described in the utility model embodiment 1
Figure.
Reference is expressed as in figure：1- roller bearings；2- installation frames；3- first order drum screens；4- second level drum screen；5-
Third level drum screen；6- fourth stage drum screens；7- one-level rewinding casees；8- two level rewinding casees；9- three-level rewinding casees；10- Pyatyis are received
Hopper；11- level Four rewinding casees.
The utility model can be implemented with many different forms, should not be construed as limited to embodiment set forth herein,
Conversely, there is provided these embodiments so that the disclosure is thorough and complete, and design of the present utility model is fully conveyed into this
Art personnel, the utility model will be defined by the claims.In the accompanying drawings, for clarity, each device can be exaggerated
Size and relative size.Term " first ", " second " in the utility model specification and claims and accompanying drawing etc. are
For distinguishing similar object, without for describing specific order or precedence.It should be appreciated that the data so used
It can exchange in the appropriate case.In addition, term " comprising ", " having " and their any deformation, it is intended that covering is not
Exclusive includes.
Embodiment：
Embodiment
The present embodiment provides a kind of roll type LED encapsulation and uses fluorescent material screening plant, as shown in figure 1, it includes at least two
Level drum screen, the drum screen be arranged in parallel successively in vertical direction, and every grade of drum screen is included at certain intervals in level
The roller bearing 1 of the parallel distribution in direction and the drive mechanism for driving the roller bearing 1 to rotate, the spacing of adjacent roller bearing is in every grade of drum screen
1-99 μm, and along direction from top to bottom, often the spacing of roller bearing 1 is successively decreased step by step in one-level drum screen.The drive mechanism uses
Conventional drive motor, motor driving roller bearing 1 are rotated, and roller bearing 1 is rolled so as to which particle diameter to be less than to the fluorescent material mistake of the spacing of roller bearing 1
To next stage drum screen, rotating speed that the roller bearing rotates is 10-600rpm/min for filter, and in the present embodiment, the rotating speed of roller bearing is
10rpm/min.Drum screen can be arranged to by two-stage or multistage according to the particle size distribution range of fluorescent material to be sieved.
Further, in addition to installation frame 2, length direction uniform parallel of the roller bearing 1 along installation frame 2 are distributed.
In the present embodiment, the screening plant includes level Four drum screen, is from top to bottom followed successively by first order drum screen 3,
Two level drum screen 4, third level drum screen 5 and fourth stage drum screen 6, in the first order drum screen 3 between adjacent two roller bearings
Away from being 60 μm for 60-99 μm, in the present embodiment, the spacing of adjacent two roller bearings is 40-50 μm in the second level drum screen 4,
It is 40 μm in the present embodiment, the spacing of adjacent two roller bearings is 20-30 μm in the third level drum screen 5, is in the present embodiment
20 μm, the spacing of adjacent two roller bearings is 5-10 μm in the fourth stage drum screen 6, is 5 μm in the present embodiment.
The present embodiment also provides a kind of method for sieving that LED encapsulation fluorescent material is carried out using the screening plant：
S1, take the first fluorescent material to be placed in the drum screen in screening plant top layer i.e. first order drum screen 3, start driving electricity
Machine, particle diameter be less than first order drum screen 3 in roller gap away from fluorescent material fall into second level drum screen 4, by particle diameter be more than first
First fluorescent material of level drum screen is recycled in one-level rewinding case 7；Particle diameter is less than the fluorescent material of the roller bearing spacing of second level drum screen 4
Third level drum screen 5 is fallen into, the first fluorescent material that particle diameter is more than to the roller bearing spacing of second level drum screen 4 is recycled to two level rewinding case
In 8, the fluorescent material that particle diameter is less than the roller bearing spacing of third level drum screen 5 falls into fourth stage drum screen 6, and particle diameter is rolled more than the third level
First fluorescent material of 5 roller bearing spacing of dynamic sieve is recycled in three-level rewinding case 9, and particle diameter is less than the roller bearing spacing of fourth stage drum screen 6
First fluorescent material is recycled in Pyatyi rewinding case 10, and the first fluorescent material that particle diameter is more than the roller bearing spacing of fourth stage drum screen 6 reclaims
Into level Four rewinding case 11；Wherein described first fluorescent material particle diameter is 4-65 μm, is rare earth doped silicate, aluminic acid
Any of the inorganic fluorescent powders such as salt, nitrate, nitride, fluoride blue light fluorescent powder.
S2, take the second fluorescent material to be placed in the drum screen in screening plant top layer i.e. first order drum screen 3, start driving electricity
Machine, particle diameter be less than first order drum screen 3 in roller gap away from fluorescent material fall into second level drum screen 4, by particle diameter be more than first
First fluorescent material of level drum screen is recycled in one-level rewinding case 7；Particle diameter is less than the fluorescent material of the roller bearing spacing of second level drum screen 4
Third level drum screen 5 is fallen into, the first fluorescent material that particle diameter is more than to the roller bearing spacing of second level drum screen 4 is recycled to two level rewinding case
In 8, the fluorescent material that particle diameter is less than the roller bearing spacing of third level drum screen 5 falls into fourth stage drum screen 6, and particle diameter is rolled more than the third level
First fluorescent material of 5 roller bearing spacing of dynamic sieve is recycled in three-level rewinding case 9, and particle diameter is less than the roller bearing spacing of fourth stage drum screen 6
First fluorescent material is recycled in Pyatyi rewinding case 10, and the first fluorescent material that particle diameter is more than the roller bearing spacing of fourth stage drum screen 6 reclaims
Into level Four rewinding case 11；Wherein described second fluorescent material particle diameter is 5-70 μm, is rare earth doped silicate, aluminic acid
Any of the inorganic fluorescent powders such as salt, nitrate, nitride, fluoride yellow fluorescent powder.
Also include being mixed with fluorescent glue with encapsulation glue after the first fluorescent material is mixed with the second fluorescent material after step S2,
And fluorescent glue is instilled by LED support with common process and solidifies the step of preparing LED lamp bead.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (4)
1. fluorescent material screening plant is used in a kind of roll type LED encapsulation, it is characterised in that the screening plant rolls including at least two-stage
Dynamic sieve, the drive mechanism that every grade of drum screen is included in the roller bearing of horizontal direction parallel distribution and drives the roller bearing to rotate,
Drum screens at different levels are sequentially arranged in vertical direction and roller bearing is axially facing consistent, and are rolled along direction from top to bottom per one-level
The spacing of roller bearing is successively decreased successively in sieve；The screening plant includes level Four drum screen, and the drum screen is from top to bottom followed successively by
One-level drum screen, second level drum screen, third level drum screen and fourth stage drum screen；Adjacent two in the first order drum screen
The spacing of roller bearing is 60-99 μm, and the spacing of adjacent two roller bearings is 40-50 μm in the second level drum screen, the third level
The spacing of adjacent two roller bearings is 20-30 μm in drum screen, and the spacing of adjacent two roller bearings is 5- in the fourth stage drum screen
10μm。
2. fluorescent material screening plant is used in roll type LED encapsulation according to claim 1, it is characterised in that the roller bearing
Rotating speed is 10-600rpm/min.
3. fluorescent material screening plant is used in roll type LED encapsulation according to claim 2, it is characterised in that every grade of drum screen
In adjacent roller bearing spacing be 1-99 μm.
4. fluorescent material screening plant is used in roll type LED encapsulation according to claim 3, it is characterised in that the roller bearing peace
Loaded in installation frame, roller bearing uniform parallel in the installation frame is distributed；The drive mechanism is motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296660.8U CN207103160U (en) | 2017-03-24 | 2017-03-24 | Fluorescent material screening plant is used in a kind of roll type LED encapsulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296660.8U CN207103160U (en) | 2017-03-24 | 2017-03-24 | Fluorescent material screening plant is used in a kind of roll type LED encapsulation |
Publications (1)
| Publication Number | Publication Date |
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| CN207103160U true CN207103160U (en) | 2018-03-16 |
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| CN201720296660.8U Active CN207103160U (en) | 2017-03-24 | 2017-03-24 | Fluorescent material screening plant is used in a kind of roll type LED encapsulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115211571A (en) * | 2022-09-20 | 2022-10-21 | 盐城市日盛机械有限公司 | Material elevating gear is used in agricultural equipment production |
-
2017
- 2017-03-24 CN CN201720296660.8U patent/CN207103160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115211571A (en) * | 2022-09-20 | 2022-10-21 | 盐城市日盛机械有限公司 | Material elevating gear is used in agricultural equipment production |
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