Spring pressure ejector pin

Abstract

The utility model relates to the technical field of LED liquid crystal display screen lamp surface secondary packaging, in particular to a spring pressure ejector pin which comprises a first ejector pin base, a magnetic attraction ejector pin sleeve is arranged at the lower end of the first ejector pin base, the upper end of the magnetic attraction ejector pin sleeve is welded and fixed to the surface of the first ejector pin base, and an annular plate is connected to the outer wall face of the magnetic attraction ejector pin sleeve in a sleeved mode. The inner wall face of the annular plate is fixedly welded to the outer wall face of a magnetic attraction ejector pin sleeve, a magnetic attraction ejector pin is arranged in the magnetic attraction ejector pin sleeve in a penetrating mode, and a magnet head is arranged at the lower end of the magnetic attraction ejector pin. Through the height of the telescopic spring, the force is controllable, the total force can be controlled through the using number, and free movement can be achieved in the production requirement, so that diversification is achieved, the problem of inconsistent thickness after packaging is solved, the effect of repeated use is achieved through diversification, and the fundamental waste problem is solved. The problem that ventilation and uniform heat dissipation cannot be achieved during heating is solved through pressing of the spring pressure ejector pin.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary packaging of a light surface of an LED liquid crystal display screen, in particular to a spring pressure ejector pin. Background Art

[0002] LED LCD is a common display device that uses LED (light emitting diode) as a backlight source and displays images by controlling the switch and brightness of these LED lights. In LED LCD, the light surface refers to the general term for the LED lights used to provide light sources.

[0003] These LED lights are usually arranged behind or on the side of the display screen to illuminate the entire screen by evenly distributing light.

[0004] In order to make the screen display more uniform, some optical elements such as diffusers or light guides may be added between the LED light and the screen to help disperse the light and eliminate dark areas or bright spots.

[0005] When manufacturing LED liquid crystal display screens, very high requirements are placed on the lamp surface. It is necessary to ensure that the quality of each LED lamp is stable and the brightness is consistent, so as to ensure that the display effect of the entire display screen is good.

[0006] In addition, in order to protect these LED lights from external factors (such as impact, wear, etc.), the lamp surface is usually specially packaged, such as covering it with resin or other materials to improve its durability and protection.

[0007] At present, during the secondary packaging, the packaging equipment needs to be assisted by spring pressure ejector pins in order to ensure the fit between the PCB light board and the glass surface. Therefore, it is necessary to design a stable spring pressure ejector pin structure so that it can improve the quality after packaging and reduce the loss and waste during the operation process. Utility Model Content

[0008] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes a spring pressure ejector.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A spring pressure ejector is designed, comprising a first ejector base, a magnetic ejector sleeve is provided at the lower end of the first ejector base, and the upper end of the magnetic ejector sleeve is welded and fixed to the surface of the first ejector base, an annular plate is sleeved on the outer wall surface of the magnetic ejector sleeve, and the inner wall surface of the annular plate is welded and fixed to the outer wall surface of the magnetic ejector sleeve, a magnetic ejector is penetrated inside the magnetic ejector sleeve, a magnet head is provided at the lower end of the magnetic ejector, and the upper end surface of the magnet head is welded and fixed to the end of the magnetic ejector, a second ejector base is provided on one side of the first ejector base, the outer wall surface of the second ejector base is welded and fixed to the outer wall surface of the first ejector base, and the lower end of the second ejector base is welded and fixed to the surface of the annular plate, an auxiliary ejector sleeve is provided at the lower end of the second ejector base, and the upper end of the auxiliary ejector sleeve is welded and fixed to the surface of the second ejector base, and an auxiliary ejector is penetrated inside the auxiliary ejector sleeve.

[0011] In detail, a first inner cavity is provided inside the magnetic ejector sleeve, a first anti-detachment block is provided at the upper end of the magnetic ejector, and the surface of the first anti-detachment block is welded and fixed to the end of the magnetic ejector, and the outer ring wall of the first anti-detachment block is slidably sleeved with the inner wall of the first inner cavity.

[0012] In detail, a first spring is disposed inside the first inner cavity, and two ends of the first spring are respectively fixedly assembled with the inner wall of the first inner cavity and the surface of the first anti-dropping block.

[0013] In detail, a second inner cavity is provided inside the auxiliary ejector sleeve, a second anti-slip block is provided at the upper end of the auxiliary ejector, and the surface of the second anti-slip block is welded and fixed to the end of the auxiliary ejector, and the outer ring wall of the second anti-slip block is slidably sleeved with the inner wall of the second inner cavity.

[0014] In detail, a second spring is disposed inside the second inner cavity, and two ends of the second spring are respectively fixedly assembled with the inner wall of the second inner cavity and the surface of the second anti-slip block.

[0015] In detail, a first mounting groove is formed at the upper end of the first ejector base. The first mounting groove is a circular groove structure, and the inner wall surface of the first mounting groove is a smooth surface or a threaded surface.

[0016] In detail, a second mounting groove is formed at the upper end of the second ejector base. The second mounting groove is a circular groove structure, and the inner wall surface of the second mounting groove is a smooth surface or a threaded surface.

[0017] The design scheme proposed by the utility model has the following beneficial effects during application:

[0018] 1. The force can be controlled by adjusting the height of the retractable spring. The total force can be controlled by the number of springs used. Freedom of movement can be achieved in production needs, thus achieving diversification.

[0019] 2. Improve the problem of inconsistent thickness after packaging, achieve multiple uses through diversification to solve the fundamental waste problem, and solve the problem of uneven ventilation and heat dissipation during heating through spring pressure ejector pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall left side structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall right side structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the front internal structure of the utility model.

[0023] In the figure: 10, first ejector base; 11, annular plate; 12, magnetic ejector sleeve; 13, magnetic ejector; 14, magnet head; 15, second ejector base; 16, auxiliary ejector sleeve; 17, auxiliary ejector; 20, first anti-dropout block; 21, first spring; 30, second anti-dropout block; 31, second spring; 40, first mounting groove; 41, second mounting groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-Figure 3 The spring pressure ejector comprises a first ejector base 10, a magnetic ejector sleeve 12 is arranged at the lower end of the first ejector base 10, and the upper end of the magnetic ejector sleeve 12 is welded and fixed to the surface of the first ejector base 10, an annular plate 11 is sleeved on the outer wall of the magnetic ejector sleeve 12, and the inner wall of the annular plate 11 is welded and fixed to the outer wall of the magnetic ejector sleeve 12, a magnetic ejector 13 is arranged inside the magnetic ejector sleeve 12, a magnet head 14 is arranged at the lower end of the magnetic ejector 13, and the upper end of the magnet head 14 A second ejector base 15 is provided on one side of the first ejector base 10, and the outer wall surface of the second ejector base 15 is welded and fixed to the outer wall surface of the first ejector base 10, and the lower end of the second ejector base 15 is welded and fixed to the surface of the annular plate 11, an auxiliary ejector sleeve 16 is provided at the lower end of the second ejector base 15, and the upper end of the auxiliary ejector sleeve 16 is welded and fixed to the surface of the second ejector base 15, and an auxiliary ejector 17 is penetrated inside the auxiliary ejector sleeve 16.

[0026] It should be further explained that a first inner cavity is provided inside the magnetic ejector sleeve 12, a first anti-slip block 20 is provided at the upper end of the magnetic ejector pin 13, and the surface of the first anti-slip block 20 is welded and fixed to the end of the magnetic ejector pin 13, and the outer ring wall of the first anti-slip block 20 is slidably sleeved with the inner wall of the first inner cavity. The first anti-slip block 20 can ensure the stable sliding sleeve connection between the magnetic ejector pin 13 and the magnetic ejector sleeve 12 to avoid slipping.

[0027] It should be further explained that a first spring 21 is provided inside the first inner cavity, and the two ends of the first spring 21 are respectively fixedly assembled with the inner wall of the first inner cavity and the surface of the first anti-dropping block 20 . The first spring 21 can ensure the stable extension and resetting of the magnetic ejector pin 13 .

[0028] It should be further explained that a second inner cavity is provided inside the auxiliary ejector sleeve 16, a second anti-detachment block 30 is provided at the upper end of the auxiliary ejector 17, and the surface of the second anti-detachment block 30 is welded and fixed to the end of the auxiliary ejector 17, and the outer ring wall of the second anti-detachment block 30 is slidably sleeved with the inner wall of the second inner cavity, which can ensure that the auxiliary ejector 17 will not slide off the auxiliary ejector sleeve 16.

[0029] It should be further explained that a second spring 31 is provided inside the second inner cavity, and the two ends of the second spring 31 are respectively fixedly assembled with the inner wall of the second inner cavity and the surface of the second anti-dropping block 30 . The second spring 31 can ensure the stability of the telescopic reset of the auxiliary ejector sleeve 16 .

[0030] It should be further explained that a first mounting groove 40 is provided at the upper end of the first ejector base 10. The first mounting groove 40 is a circular groove structure, and the inner wall surface of the first mounting groove 40 is a smooth surface or a threaded surface, so that the first ejector base 10 can be threadedly connected with the extrusion end of the packaging equipment, such as the end of the piston rod of a cylinder with a threaded column.

[0031] It should be further explained that a second mounting groove 41 is provided at the upper end of the second ejector base 15, the second mounting groove 41 is a circular groove structure, and the inner wall surface of the second mounting groove 41 is a smooth surface or a threaded surface. The second ejector base 15 can be installed at the end of the packaging device with the first ejector base 10, and either one of them can be selected.

[0032] Working method: There are two types of spring ejectors. The 10mm through-head ejector is responsible for the adsorption of the PCB board when it is inverted, and the pointed ejector is responsible for releasing the pressure on the PCB surface to achieve a veneer effect on the lamp bead surface of the PCB board.

[0033] The two ejector pins of this device work in the following states:

[0034] Static state: The ejector pin remains stationary when there is no external force, and the spring is in a natural state with a certain tension;

[0035] Compression process: When an external force is applied to the ejector pin, either by direct pressure or by rotation, the ejector pin begins to compress and the spring is also forced to compress;

[0036] Energy storage: As the ejector pin is further compressed, the spring stores more and more energy;

[0037] Release state: Once the external force is removed, the pressure of the spring quickly pushes the ejector back to its original position;

[0038] Reset: The ejector returns to the initial state and waits for the next cycle.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spring pressure ejector, comprising a first ejector base (10), characterized in that: A magnetic ejector sleeve (12) is provided at the lower end of the first ejector base (10), and the upper end of the magnetic ejector sleeve (12) is welded and fixed to the surface of the first ejector base (10); an annular plate (11) is sleeved on the outer wall surface of the magnetic ejector sleeve (12), and the inner wall surface of the annular plate (11) is welded and fixed to the outer wall surface of the magnetic ejector sleeve (12); a magnetic ejector (13) is provided through the interior of the magnetic ejector sleeve (12), and a magnet head (14) is provided at the lower end of the magnetic ejector pin (13), and the upper end surface of the magnet head (14) is in contact with the magnetic ejector pin (13). ), a second ejector base (15) is provided on one side of the first ejector base (10), and the outer wall surface of the second ejector base (15) is welded and fixed to the outer wall surface of the first ejector base (10), and the lower end of the second ejector base (15) is welded and fixed to the surface of the annular plate (11), an auxiliary ejector sleeve (16) is provided at the lower end of the second ejector base (15), and the upper end of the auxiliary ejector sleeve (16) is welded and fixed to the surface of the second ejector base (15), and an auxiliary ejector (17) is provided inside the auxiliary ejector sleeve (16) through which passes.

2. The spring pressure ejector according to claim 1, characterized in that: A first inner cavity is provided inside the magnetic ejector sleeve (12), a first anti-slip block (20) is provided at the upper end of the magnetic ejector (13), and the surface of the first anti-slip block (20) is welded and fixed to the end of the magnetic ejector (13), and the outer ring wall of the first anti-slip block (20) is slidably sleeved with the inner wall of the first inner cavity.

3. The spring pressure ejector according to claim 2, characterized in that: A first spring (21) is arranged inside the first inner cavity, and two ends of the first spring (21) are respectively fixedly assembled with the inner wall of the first inner cavity and the surface of the first anti-slip block (20).

4. The spring pressure ejector according to claim 1, characterized in that: A second inner cavity is provided inside the auxiliary ejector sleeve (16), a second anti-slip block (30) is provided at the upper end of the auxiliary ejector (17), and the surface of the second anti-slip block (30) is welded and fixed to the end of the auxiliary ejector (17), and the outer ring wall of the second anti-slip block (30) is slidably sleeved with the inner wall of the second inner cavity.

5. The spring pressure ejector according to claim 4, characterized in that: A second spring (31) is arranged inside the second inner cavity, and two ends of the second spring (31) are respectively fixedly assembled with the inner wall of the second inner cavity and the surface of the second anti-slip block (30).

6. The spring pressure ejector according to claim 1, characterized in that: A first mounting groove (40) is provided at the upper end of the first ejector base (10); the first mounting groove (40) is a circular groove structure, and the inner wall surface of the first mounting groove (40) is a smooth surface or a threaded surface.

7. The spring pressure ejector according to claim 1, characterized in that: A second mounting groove (41) is provided at the upper end of the second ejector base (15); the second mounting groove (41) is a circular groove structure, and the inner wall surface of the second mounting groove (41) is a smooth surface or a threaded surface.

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