Smt lamp strip lens pasting suction nozzle

Abstract

The utility model discloses a kind of smt lamp strip lens pasting suction nozzle, including suction nozzle body, suction rod is arranged in the accommodating groove of suction nozzle body, the end of suction rod is provided with suction disc, air groove is opened in the lateral wall of suction nozzle body and is communicated with accommodating groove, suction nozzle body is also provided with the blocking block that can be ejected, and suction nozzle body is also provided with driving mechanism.In pasting, the air groove is kept blocked by blocking block when adsorbing lens, so as to ensure the airtightness of suction nozzle body;And when pasting ends, blocking block can be dislocated with air groove, so that air groove is opened, air can flow into accommodating groove, thereby to balance the air pressure inside and outside suction disc, so that lens and suction disc are separated.Compared with prior art, the utility model realizes the blocking and opening of air groove by blocking block movable to first position, second position, while meeting the stability when suction nozzle adsorbs and the smoothness when separates.

Description

Technical Field

[0001] This utility model relates to the field of LED strip manufacturing technology, and in particular, to an SMT LED strip lens mounting nozzle. Background Technology

[0002] SMT (Surface Mount Technology) LED strip lenses are optical components precisely mounted on the PCB board of LED strips using surface mount technology (SMT), typically covering the LED chips. Their main functions include focusing, scattering, or adjusting the light emitted from the LED chips to meet specific light distribution requirements, thereby effectively improving lighting uniformity and luminous efficacy, and providing protection such as anti-glare and waterproofing. These lenses play a crucial role in optimizing the lighting effect and reliability of SMT LED strips.

[0003] Currently, Chinese patent CN113716336B discloses a suction nozzle, including a nozzle body, a suction rod disposed in a receiving groove of the nozzle body, and a suction cup disposed at the end of the suction rod. A negative pressure device can create negative pressure in the channel of the suction rod and in the suction cup, thereby achieving the adsorption of a lens. To achieve automatic release of the lens upon negative pressure contact, a first air groove is formed on the side wall of the nozzle body, communicating with the receiving groove. Air can flow into the receiving groove through the first air groove to balance the air pressure inside and outside the suction cup, thus separating the lens from the suction cup.

[0004] However, the addition of the first air slot ultimately reduces the airtightness of the nozzle body. This necessitates a greater negative pressure applied to the suction cup by the negative pressure device during adsorption to prevent the lens from unexpectedly detaching from the nozzle. The challenge lies in simultaneously achieving stability during adsorption and smooth separation. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an SMT LED strip lens mounting nozzle.

[0006] The objective of this utility model is achieved through the following technical solution: An SMT LED strip lens mounting nozzle includes a nozzle body, a suction rod disposed within a receiving groove of the nozzle body, a suction cup disposed at the end of the suction rod, and an air groove communicating with the receiving groove on the side wall of the nozzle body. The nozzle body is characterized by having an ejectable sealing block and a driving mechanism adapted to drive the sealing block to a first position and a second position. In the first position, the sealing block is misaligned with the air groove, and the supply of negative pressure within the suction rod ceases. In the second position, the sealing block is opposite to the air groove, and negative pressure is continuously supplied within the suction rod.

[0007] Preferably, the suction cup is made of rubber.

[0008] Preferably, the suction cup is conical, and the end of the suction rod is retracted into the conical cavity of the suction cup.

[0009] Preferably, the end face of the suction rod is flush with the top surface of the conical cavity of the suction cup.

[0010] Preferably, the driving mechanism includes an ejector, and the sealing block is disposed on the ejector shaft of the ejector; it also includes a controller, which is electrically connected to the ejector and the negative pressure device of the suction rod.

[0011] Preferably, the ejector includes an electric cylinder or a magnetic ejector structure.

[0012] Preferably, the driving mechanism includes a driving cavity constructed on the nozzle body, a driving plate slidably and sealingly connected within the driving cavity, the driving plate dividing the driving cavity into a first chamber and a second chamber, a connecting rod extending out of the driving cavity provided on the driving plate, and a sealing block provided on the connecting rod; a spring connected to the driving plate is provided in the first chamber; the second chamber is adapted to communicate with the suction rod through a connecting pipe, and an on / off valve is provided in the connecting pipe; when a negative pressure is continuously provided in the suction rod, the on / off valve connects the suction rod to the connecting pipe; when the negative pressure is stopped in the suction rod, the on / off valve connects the connecting pipe to air.

[0013] Preferably, a through hole is provided at the end of the first chamber near the second chamber.

[0014] The beneficial effects of this invention are as follows: During mounting, the sealing block maintains the seal on the air groove while the lens is adsorbed, thus ensuring the airtightness of the nozzle body; at the end of mounting, the sealing block can be misaligned with the air groove, allowing the air groove to open and air to flow into the receiving groove, thereby balancing the air pressure inside and outside the suction cup and allowing the lens to separate from the suction cup. Compared with the prior art, this invention achieves both sealing and opening of the air groove through a sealing block that can be moved to a first position and a second position, simultaneously satisfying the stability of the nozzle during adsorption and the smoothness of separation. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the ejector component; Figure 2 This is a schematic diagram of the drive cavity structure; Figure 3 for Figure 2 Enlarged view of part A.

[0016] Reference numerals: 1. Nozzle body; 2. Receiving groove; 3. Suction rod; 4. Suction cup; 5. Air groove; 6. Sealing block; 7. Drive mechanism; 8. Ejector; 9. Ejector shaft; 10. Drive chamber; 11. Drive plate; 12. First chamber; 13. Second chamber; 14. Connecting rod; 15. Spring; 16. Connecting pipe; 17. Opening and closing valve; 18. Through hole; 19. Drive box. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] like Figures 1 to 3 As shown, an SMT LED strip lens mounting nozzle includes a nozzle body 1, which may be a cylindrical structure with a receiving groove 2 at its end face. A suction rod 3 is coaxially mounted on the nozzle body 1 and extends into the receiving groove 2. A negative pressure device is adapted to connect the suction rod 3. The negative pressure device creates a negative pressure in the channel of the suction rod 3 and even in the receiving groove 2, thereby adsorbing the lens below the nozzle.

[0019] The suction rod 3 is further provided with a suction cup 4 at its end within the receiving groove 2. For example, the suction cup 4 can be made of rubber. Based on the soft texture of rubber, the suction cup 4 can conform to the end face of the lens to achieve a better adsorption effect. For example, the cross-section of the suction cup 4 can be conical, and the end of the suction rod 3 is retracted into the conical cavity of the suction cup 4, and the end face of the suction rod 3 is flush with the top surface of the conical cavity of the suction cup 4, making the nozzle particularly suitable for adsorbing convex lenses, that is, the protruding part of the convex lens can be correspondingly fitted into the conical cavity of the suction cup 4.

[0020] The bottom of the side wall of the suction nozzle body 1 is also provided with an air groove 5 that is connected to the receiving groove 2. For example, after the suction and mounting are completed, air can flow into the receiving groove 2 through the air groove 5, thereby balancing the air pressure inside and outside the suction cup 4, so that the lens can be separated from the suction cup 4.

[0021] To ensure the air groove 5 can be opened or closed as expected, this disclosure includes an ejectable sealing block 6 on the suction nozzle body 1, and a drive mechanism 7 on the suction nozzle body 1 for ejecting the sealing block 6 to a first position and a second position. In the first position, the sealing block 6 is specifically adapted to be misaligned with the air groove 5, allowing air to flow into the receiving groove 2 through the air groove 5, while the suction rod 3 correspondingly stops providing negative pressure, enabling the suction nozzle to separate from the lens. In the second position, the sealing block 6 is specifically adapted to be opposite the air groove 5, closing the passage of the air groove 5, while the suction rod 3 correspondingly continues to provide negative pressure, allowing the suction nozzle to maintain adsorption of the lens with a higher degree of sealing.

[0022] In some embodiments, the drive mechanism 7 may include an ejector 8 such as an electric cylinder or a magnetic ejection structure, and the sealing block 6 is correspondingly disposed on the ejection shaft 9 of the ejector 8. It can be understood that, under the control of the controller, the ejector 8 and the negative pressure device cooperate to achieve the corresponding usage states of the sealing block 6 in the first position and the second position.

[0023] Alternatively, the drive mechanism 7 may include a drive cavity 10 constructed on the nozzle body 1. For example, a drive box 19 may be provided on the outer wall of the nozzle body 1, and the drive cavity 10 is defined within the drive box 19. A drive plate 11 is slidably and sealingly connected within the drive cavity 10, thereby dividing the drive cavity 10 into a first chamber 12 and a second chamber 13. The first chamber 12 contains a spring 15 connected to the drive plate 11; the second chamber 13 is adapted to communicate with the suction rod 3 via a connecting pipe 16, and the connecting pipe 16 also contains an on / off valve 17. For example, the on / off valve 17 may be a solenoid valve.

[0024] The drive plate 11 is also provided with a connecting rod 14 extending out of the drive cavity 10, and the aforementioned sealing block 6 is correspondingly provided on the connecting rod 14.

[0025] In the initial state, the negative pressure supply in the suction rod 3 stops, and the spring 15 holds the drive plate 11 in, for example, the middle position of the drive chamber 10. At this time, the sealing block 6 is misaligned with the air groove 5, so that the air groove 5 is open. When the negative pressure supply in the suction rod 3 continues, the on / off valve 17 connects the connecting pipe 16 to the suction rod 3, and a negative pressure is formed in the second chamber 13, causing the drive plate 11 to slide. For example, it drives the first chamber 12 to increase, and the second chamber 13 to shrink accordingly. During this period, the spring 15 enters a deformation and energy storage state, and the sealing block 6 is opposite to the air groove 5, so that the air groove 5 is closed. When the suction rod 3 stops supplying negative pressure again, the spring 15 will restore the drive plate 11 to the initial position, so that the air groove 5 is open again.

[0026] For example, the on / off valve 17 can be a three-way valve. For instance, when the lens and the nozzle need to be separated, the on / off valve 17 connects the connecting pipe 16 to the air, so that the negative pressure state of the second chamber 13 is quickly released.

[0027] In a preferred embodiment, a through hole 18 is provided at the end of the first chamber 12 near the second chamber 13. For example, after the valve 17 connects the connecting pipe 16 to the air, the spring 15 will quickly restore the drive plate 11 to the initial position. The spring 15 will overshoot, so that the through hole 18 is opposite to the second chamber 13, thereby making it easier to release the negative pressure state in the second chamber 13 and the connecting pipe 16. Finally, the spring 15 returns to its natural state so that the through hole 18 is opposite to the first chamber 12.

[0028] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. An SMT LED strip lens mounting nozzle, comprising a nozzle body (1), wherein a suction rod (3) is disposed in a receiving groove (2) of the nozzle body (1), a suction cup (4) is disposed at the end of the suction rod (3), and an air groove (5) communicating with the receiving groove (2) is formed on the side wall of the nozzle body (1), characterized in that: The suction nozzle body (1) is also provided with an ejectable sealing block (6), and the suction nozzle body (1) is also provided with a driving mechanism (7), the driving mechanism (7) being adapted to drive the sealing block (6) to be ejected to a first position and a second position; At the first position, the sealing block (6) is misaligned with the air groove (5), and the negative pressure supply in the suction rod (3) stops; In the second position, the sealing block (6) is opposite to the air groove (5), and negative pressure is continuously provided in the suction rod (3).

2. The SMT LED strip lens mounting nozzle according to claim 1, characterized in that: The suction cup (4) is made of rubber.

3. The SMT LED strip lens mounting nozzle according to claim 1, characterized in that: The suction cup (4) is conical, and the end of the suction rod (3) is inserted into the conical cavity of the suction cup (4).

4. The SMT LED strip lens mounting nozzle according to claim 3, characterized in that: The end face of the suction rod (3) is flush with the top surface of the conical cavity of the suction cup (4).

5. The SMT LED strip lens mounting nozzle according to any one of claims 1-4, characterized in that: The drive mechanism (7) includes an ejector (8), and the sealing block (6) is disposed on the ejector shaft (9) of the ejector (8); It also includes a controller, which is electrically connected to the negative pressure device of the ejector (8) and the suction rod (3).

6. The SMT LED strip lens mounting nozzle according to claim 5, characterized in that: The ejector (8) includes an electric cylinder or magnetic ejector structure.

7. The SMT LED strip lens mounting nozzle according to any one of claims 1-4, characterized in that: The drive mechanism (7) includes a drive cavity (10) constructed on the nozzle body (1), a drive plate (11) is slidably and sealed in the drive cavity (10), the drive plate (11) divides the drive cavity (10) into a first chamber (12) and a second chamber (13), a connecting rod (14) extending out of the drive cavity (10) is provided on the drive plate (11), and the sealing block (6) is provided on the connecting rod (14); A spring (15) connected to the drive plate (11) is provided in the first chamber (12); The second chamber (13) is adapted to be connected to the suction rod (3) by a connecting pipe (16), and an opening and closing valve (17) is provided in the connecting pipe (16); When a negative pressure is continuously provided in the suction rod (3), the opening and closing valve (17) connects the suction rod (3) to the connecting pipe (16); When the negative pressure supply in the suction rod (3) is stopped, the on / off valve (17) connects the connecting pipe (16) to the air.

8. The SMT LED strip lens mounting nozzle according to claim 7, characterized in that: The first chamber (12) has a through hole (18) at the end near the second chamber (13).

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