On-line automatic stirring device for LED dispensing

Abstract

The utility model provides an on-line automatic stirring device for LED (light-emitting diode) dispensing, which comprises a driving device and a needle cylinder used for loading colloid, and further comprises a transmission mechanism arranged between the needle cylinder and the driving device, one end of the transmission mechanism is connected with one end of an output shaft of the driving device, and the other end of the transmission mechanism is connected with an output shaft of the driving device. The other end of the transmission mechanism is detachably connected with one end of the needle cylinder in a sealed mode, a stirring rod used for stirring colloid is detachably arranged at the end, connected with the needle cylinder, of the transmission mechanism, the stirring rod comprises a polished rod and a spiral blade spirally arranged around the polished rod in a stepped mode, and the stirring rod is located in a cavity, containing the colloid, of the needle cylinder. According to the on-line automatic stirring device for LED dispensing, the transmission mechanism is arranged on one side of the needle cylinder, and the stirring rod with the spiral blade arranged at a certain angle is arranged between the needle cylinder and the transmission mechanism, so that glue in the needle cylinder can be stirred in real time, fluorescent powder is prevented from settling, the dispensing operation time is prolonged, and the working efficiency is improved. And the production yield of the LED lamp beads is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED electronics, in particular to an online automatic stirring device for LED glue dispensing. Background Art

[0002] As a semiconductor light-emitting device, LED lamp beads can directly convert electrical energy into light energy. They have the characteristics of low power consumption, high brightness, and bright colors, which makes them widely used in various lighting and display applications. In specific technical fields, such as electronic manufacturing and medical fields, LED lamp beads are used for UV curing technology. This technology uses the ultraviolet light emitted by ultraviolet LED lamp beads to quickly trigger the photoresist in the adhesive to achieve rapid curing. It has the advantages of fast curing, low energy consumption, and environmental protection. LED lamp beads also have the advantages of low heat generation and long service life. LED lamp beads play an important role in many fields through their unique technical characteristics and wide application adaptability. With the application of LED green light sources in various industries, the requirements for the production yield of LED lamp beads are getting higher and higher. Among the factors affecting the yield of LED lamp beads, the color zone concentration occupies the largest proportion, and LED lamp bead dispensing is the most important link in determining whether the color zone is good.

[0003] In the prior art, when dispensing glue for LED lamp beads, the glue is generally mixed and degassed independently, then poured into a syringe and loaded onto a machine for dispensing. As the dispensing time increases, the phosphor will precipitate inside the glue, causing the color area to be more discrete, thereby affecting the production yield of the LED. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an online automatic stirring device for LED glue dispensing, aiming to solve the technical problem in the prior art that the stirred glue is prolonged due to the glue dispensing time, resulting in the precipitation of fluorescent powder inside the glue.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: an LED dispensing online automatic stirring device, including a driving device, and a syringe for loading a colloid, the LED dispensing online automatic stirring device also includes a transmission mechanism arranged between the syringe and the driving device, one end of the transmission mechanism is connected to one end of the output shaft of the driving device, and the other end of the transmission mechanism is detachably sealed and connected to one end of the syringe, the transmission mechanism is connected to one end of the syringe and is detachably provided with a stirring rod for stirring the colloid, the stirring rod includes a smooth rod, and a spiral blade arranged in a stepped spiral around the smooth rod, and the stirring rod is located in the cavity of the syringe loaded with colloid.

[0006] Compared with the prior art, the beneficial effect of the utility model lies in: a stirring device is installed at one end of a syringe containing stirred glue, wherein the stirring device includes a transmission mechanism fixedly installed on one end of the syringe, and a stirring rod located inside the syringe for stirring the glue and forming a detachable connection with the transmission mechanism; by setting the stirring rod as a spiral blade stirring rod, the utility model can stir the glue inside the syringe in real time while having a better stirring effect, thereby preventing the glue in the syringe from precipitating fluorescent powder in the glue due to prolonged dispensing time.

[0007] According to one aspect of the above technical solution, the transmission mechanism includes a housing, and a transmission assembly disposed inside the housing and penetrating the housing, and the housing and the transmission assembly are rotatably connected.

[0008] According to one aspect of the above technical solution, the transmission assembly is a transmission rod, and one end of the transmission assembly away from the stirring rod is detachably connected to the driving device.

[0009] According to one aspect of the above technical solution, a ventilation duct for pressurizing the cavity inside the syringe is provided inside the housing, the housing is provided with a quick-release interface that cooperates with the ventilation duct, and the transmission mechanism is provided with a first groove for accommodating a sealing ring at one end connected to the syringe.

[0010] According to one aspect of the above technical solution, locking sliders for fixing the syringe are provided on both sides of the first groove, and the locking sliders are slidably connected to the housing.

[0011] According to one aspect of the above technical solution, the syringe includes a syringe body and a syringe mouth for discharging glue, one end of the syringe mouth is connected to one end of the syringe body, and the syringe also includes a fixing portion extending outward from one end of the syringe body away from the syringe mouth to form a fixing portion for cooperating with the locking slider.

[0012] According to one aspect of the above technical solution, the fixing portion is provided with a second groove for accommodating the sealing ring.

[0013] According to one aspect of the above technical solution, the spiral blades are arranged in a 30° spiral. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of an LED dispensing online automatic stirring device in one embodiment of the utility model;

[0015] Figure 2 This is a schematic cross-sectional structure diagram of an LED dispensing online automatic stirring device in one embodiment of the utility model;

[0016] Figure 3This is a schematic diagram of the syringe structure in the LED dispensing online automatic stirring device in one embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the transmission mechanism structure in the LED dispensing online automatic stirring device in one embodiment of the utility model;

[0018] Figure 5 for Figure 4 A schematic diagram of the structure of the locking slider replacement form;

[0019] Figure 6 This is a schematic diagram of the structure of a stirring rod in an LED dispensing online automatic stirring device in one embodiment of the utility model;

[0020] Description of main component symbols:

[0021] 1-syringe, 11-syringe body, 12-syringe mouth, 13-fixing part, 131-second groove;

[0022] 2-transmission mechanism, 21-housing, 211-ventilation pipe, 212-quick release interface, 213-first groove, 214-locking slider, 22-transmission assembly;

[0023] 3-stirring rod, 31-smooth rod, 32-spiral blade;

[0024] 4- Sealing ring;

[0025] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] See also Figures 1 to 3 An embodiment of the utility model provides an LED glue dispensing online automatic stirring device, including a driving device and a syringe 1 for loading a colloid. Specifically, the syringe 1 includes a syringe body 11 and a syringe mouth 12 for discharging glue. One end of the syringe mouth 12 is connected to one end of the syringe body 11. The syringe 1 also includes a fixing portion 13 formed by extending outward from one end of the syringe body 11 away from the syringe mouth 12. The LED glue dispensing online automatic stirring device also includes a transmission mechanism 2 arranged between the syringe 1 and the driving device. Specifically, the transmission mechanism 2 includes a shell 21 and a portion provided inside the shell 21 and extending through the The shell 21 is provided with a transmission assembly 22, and the shell 21 and the transmission assembly 22 are rotatably connected. One end of the transmission mechanism 2 is connected to one end of the output shaft of the driving device, and the other end of the transmission mechanism 2 is detachably sealed and connected to one end of the syringe 1. The transmission mechanism 2 is connected to one end of the syringe 1 and is detachably provided with a stirring rod 3 for stirring the colloid. The stirring rod 3 includes a smooth rod 31 and a spiral blade 32 arranged in a stepped spiral around the smooth rod 31. The stirring rod 3 is located in the cavity of the syringe 1 for loading the colloid, wherein the bottom of the syringe body 11 is a flat bottom structure, which is convenient for the rotation of the stirring rod 3 inside the cavity and for more complete stirring.

[0030] In this embodiment, since the transmission assembly 22 mainly transmits the power of the driving device to the stirring rod 3, the transmission assembly 22 can be a reduction gear set or a transmission shaft. However, in this embodiment, since the driving device itself has a speed regulation function and the torque required for stirring the glue is relatively small, preferably, the transmission assembly 22 is a transmission rod, wherein the transmission assembly 22 and the housing 21 are rotatably fixedly connected by installing bearings, and have the characteristics of simple structure. Structures for quick connection with the driving device and the stirring rod 3 are respectively provided at both ends of the transmission assembly 22, and the use of the transmission mechanism 2 housing 21 enables the transmission assembly 22 to form a detachable connection with the driving device and the stirring rod 3. Specifically, the transmission assembly 22 is a transmission rod, and the end of the transmission assembly 22 away from the stirring rod 3 is detachably connected to the driving device.

[0031] See also Figure 4During installation, the stirring rod 3 is fixedly connected to one end of the transmission assembly 22 of the transmission mechanism 2, and then the stirring rod 3 is extended into the syringe 1 filled with colloid until the fixing portion 13 of the syringe 1 and the transmission mechanism 2 abut against each other. At this time, the locking slider 214 is slid to fix the syringe 1 and the transmission mechanism 2. It should be noted that the syringe 1 and the transmission mechanism 2 can also be fixed by a rotating card connection, such as Figure 5 However, during the dispensing process, the internal cavity formed by the syringe 1 and the transmission mechanism 2 needs to have a certain airtightness, so a first groove 213 for accommodating the sealing ring 4 is provided in the transmission mechanism 2 and a second groove 131 for accommodating the sealing ring 4 is provided in the fixed part 13 of the syringe 1. The sealing ring 4 is installed between the first groove 213 and the second groove 131. When the syringe 1 and the transmission mechanism 2 are against each other, the sealing ring 4 is just located in the accommodating groove of the first groove 213 and the second groove 131, and the cavity inside the syringe 1 forms a good airtight environment. Specifically, the housing 21 is provided with a ventilation duct 211 for pressurizing the internal cavity of the syringe 1, and the housing 21 is provided with a quick-release interface 212 that cooperates with the ventilation duct 211. The transmission mechanism 2 is provided with a first groove 213 for accommodating the sealing ring 4 at one end connected to the syringe 1, and the fixed part 13 is provided with a second groove 131 for accommodating the sealing ring 4. However, when fixing the syringe 1, if the rotating syringe 1 is used to engage with the transmission mechanism 2, it is easy for the rotating friction rubber ring to wrinkle, which may cause poor air tightness and difficulty in engaging in place. Therefore, this embodiment uses a direct sliding locking method to fix the syringe 1. Preferably, locking sliders 214 for fixing the syringe 1 are provided on both sides of the first groove 213, and the locking sliders 214 are slidably connected to the housing 21. It should be supplemented that the ventilation duct 211 is arranged inside the transmission mechanism 2, wherein the air outlet of the ventilation duct 211 is located inside the first groove 213, and the air inlet of the ventilation duct 211 is connected to the quick-release interface 212, and the quick-release interface 212 is connected to the external pressurized air pipe, thereby forming a complete pressurized internal environment.

[0032] Please refer to 6. In this embodiment, in order to make the glue stirred more evenly, the blades of the stirring rod 3 are spiral blades 32, wherein the spiral angle of the spiral blades 32 is set at 20-45°, which has the effect of stirring evenly. It is found through experiments that the 30° stepped spiral design can well stir the fluorescent glue evenly within the range without causing bubbles. Preferably, the spiral blades 32 are set at 30° spirally.

[0033] During the stirring process, it is convenient for the fluorescent glue to flow into the bottom of the syringe 1 to achieve sufficient stirring. The diameter of the internal cavity of the syringe 1 is larger than the diameter of the spiral blade 32, and the gap distance between them is 2-3 cm at best. It should be noted that the stirring device needs to be matched with a certain rotation speed to achieve the best stirring effect. It is understandable that if the stirring speed is too fast, the fluorescent glue will overflow under the stirring of the spiral blade 32 and cannot flow to the bottom of the syringe 1 in time, and bubbles will be generated due to the too fast stirring speed. If it is too slow, the effect of uniform stirring cannot be achieved.

[0034] It should be noted that, in actual application, the syringe 1 is fixed on the dispensing machine at an angle of 45°, which is convenient for preventing the phosphor from settling and is conducive to uniform stirring.

[0035] In summary, the LED glue dispensing online automatic stirring device in the above-mentioned embodiment of the utility model has a stirring device detachably installed at one end of the syringe, and a stirring rod with stirring blades arranged in a 30° stepped spiral is installed on the stirring device, so that the utility model can stir the colloid in the syringe in real time, prevent the fluorescent powder from settling, increase the glue dispensing operation time, and improve the production yield of LED lamp beads.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.

Claims

1. An LED dispensing online automatic stirring device, comprising a driving device and a syringe for loading colloid, characterized in that: The LED dispensing online automatic stirring device also includes a transmission mechanism arranged between the syringe and the driving device, one end of the transmission mechanism is connected to one end of the output shaft of the driving device, and the other end of the transmission mechanism is detachably sealed and connected to one end of the syringe. The transmission mechanism is connected to one end of the syringe and is detachably provided with a stirring rod for stirring the colloid. The stirring rod includes a smooth rod and a spiral blade arranged in a stepped spiral around the smooth rod. The stirring rod is located in the cavity of the syringe loaded with colloid.

2. The LED dispensing online automatic stirring device according to claim 1 is characterized in that: The transmission mechanism comprises a housing, and a transmission assembly arranged inside the housing and penetrating the housing, and the housing and the transmission assembly are rotatably connected.

3. The LED dispensing online automatic stirring device according to claim 2 is characterized in that: The transmission assembly is a transmission rod, and one end of the transmission assembly away from the stirring rod is detachably connected to the driving device.

4. The LED dispensing online automatic stirring device according to claim 2 is characterized in that: The shell is provided with a ventilation duct for pressurizing the internal cavity of the syringe, the shell is provided with a quick-release interface cooperating with the ventilation duct, and the end of the transmission mechanism connected to the syringe is provided with a first groove for accommodating a sealing ring.

5. The LED glue dispensing online automatic stirring device according to claim 4 is characterized in that: Locking slide blocks for fixing the syringe are arranged on both sides of the first groove, and the locking slide blocks are slidably connected to the housing.

6. The LED glue dispensing online automatic stirring device according to claim 5 is characterized in that: The syringe includes a syringe body and a syringe mouth for discharging glue, one end of the syringe mouth is connected to one end of the syringe body, and the syringe also includes a fixing part extending outward from one end of the syringe body away from the syringe mouth to form a fixing part for cooperating with the locking slider.

7. The LED glue dispensing online automatic stirring device according to claim 6 is characterized in that: The fixing portion is provided with a second groove for accommodating the sealing ring.

8. The LED dispensing online automatic stirring device according to claim 1 is characterized in that: The spiral blades are arranged in a 30° spiral.

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