Dispensing system for optical modules

Abstract

This invention relates to the field of optical communication technology, specifically to an optical module dispensing system, comprising a syringe, a piston, a dispensing needle, an air tube, and a compressed air source. The lower end of the syringe is equipped with a dispensing needle, and the upper end of the syringe is connected to one end of the air tube. The other end of the air tube is connected to the compressed air source via a valve. A piston is located inside the syringe, and the piston has a through-hole extending vertically. A switch for opening or closing the through-hole is located at the top of the through-hole. This invention, by providing a through-hole on the piston and a switch that can open or close the top of the through-hole, allows for several changes. When dispensing is needed, the valve opens and the through-hole closes, applying pressure to the glue and causing it to overflow from the dispensing needle. When dispensing is not needed, the valve closes and the through-hole opens, connecting the glue to the space above the piston inside the syringe and releasing the glue pressure. Therefore, glue does not continuously overflow from the needle, effectively solving the problem of continuous glue overflow after the valve is closed.

Description

Technical Field

[0001] This invention relates to the field of optical communication technology, and more specifically to an optical module dispensing system. Background Technology

[0002] Figure 1 This diagram illustrates a typical optical module dispensing system in the prior art. The system includes a dispensing needle 1, a syringe 2, adhesive 3, a piston 4, an air tube 7, and a compressed air source 8. When dispensing is needed, the valve connecting the air tube 7 to the compressed air is opened to apply pressure to the piston 4, causing the dispensing needle 1 to dispense adhesive. When dispensing is no longer needed, the valve connecting the air tube 7 to the compressed air is closed to stop dispensing. However, this dispensing system has a problem: due to friction between the piston 4 and the inner wall of the syringe 2, even when dispensing is not needed and the valve connecting the air tube 7 to the compressed air is closed to unload the adhesive pressure, the piston 4 maintains a very low pressure on the adhesive 3 due to the friction between the piston 4 and the syringe 2. This causes adhesive to continue to slowly overflow from the dispensing needle 1, making it difficult to control the amount of adhesive dispensed. Summary of the Invention

[0003] The purpose of this invention is to provide an optical module dispensing system that can at least solve some of the defects in the prior art.

[0004] To achieve the above objectives, the technical solution of the present invention is an optical module dispensing system, comprising a needle, a piston, a dispensing needle, an air tube, and a compressed air source. The lower end of the needle is provided with a dispensing needle, and the upper end of the needle is connected to one end of the air tube. The other end of the air tube is connected to the compressed air source through a valve. A piston is provided inside the needle, and a through hole is provided on the piston. A switch for opening or closing the through hole is provided at the top of the through hole.

[0005] As one implementation method, the switch is a switching valve, and the switching valve is disposed in the through hole.

[0006] As one embodiment, the switch is a sealing ball, which is disposed on the top surface of the piston. The sealing ball can seal the upper end face of the through hole when the valve is opened, and open the upper end face of the through hole when the valve is closed.

[0007] Furthermore, the top surface of the piston is either a flat surface or an arc surface that is concave from the periphery to the center.

[0008] Furthermore, the sealing ball is made of plastic with a density of less than 2 g / cm³. 3 .

[0009] Furthermore, the sealing sphere has a hollow structure.

[0010] Furthermore, the sealing ball is a spherical or elliptical ball, and its diameter is larger than the diameter of the through hole.

[0011] Furthermore, the through hole is a circular through hole or a conical through hole.

[0012] Furthermore, the optical module dispensing system also includes a controller, and the valve is electrically connected to the controller.

[0013] Furthermore, the optical module dispensing system also includes an adjustment mechanism for moving the needle in the horizontal and vertical directions.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention features a through-hole on a piston with a switch at the top that can open or close. When dispensing is needed, the valve connecting the air pipe to the compressed air source is opened, and the switch closes the through-hole on the piston, applying pressure to the glue and causing it to overflow from the dispensing needle. When dispensing is not needed, the valve connecting the air pipe to the compressed air source is closed, and the switch opens the through-hole on the piston. Even if there is friction between the piston and the needle, the through-hole on the piston connects the glue to the space above the piston in the needle, releasing the glue pressure. Therefore, glue will not continuously overflow from the needle, effectively solving the problem of continuous glue overflow after the air pressure is removed upon completion of dispensing. Furthermore, since the glue dispensing volume is completely controlled, the accuracy of glue volume control is improved, increasing production efficiency. The switch can be a valve or a sealing ball, enriching the methods of connecting the glue to the space above the piston in the needle. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of an existing optical module dispensing system provided for the background art;

[0018] Figure 2 This is a schematic diagram of an optical module dispensing system provided in an embodiment of the present invention;

[0019] In the diagram: 1. Dispensing needle; 2. Needle tube; 3. Glue; 4. Piston; 5. Through hole; 6. Sealing ball; 7. Air tube; 8. Compressed air source. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 2 As shown, this embodiment provides an optical module dispensing system, including a syringe 2, a piston 4, a dispensing needle 1, an air tube 7, and a compressed air source 8. The lower end of the syringe 2 is equipped with the dispensing needle 1, and the upper end of the syringe 2 is connected to one end of the air tube 7. The other end of the air tube 7 is connected to the compressed air source 8 via a valve. The piston 4 is disposed inside the syringe 2, and the piston 4 has a through hole 5 extending vertically. A switch for opening or closing the through hole 5 is provided at the top of the through hole 5. Adhesive 3 is applied between the bottom surface of the piston 4 and the bottom wall of the syringe 2.

[0022] This embodiment features a through-hole 5 extending vertically through the piston 4, with a switch to open or close this through-hole 5. When dispensing is needed, the valve connecting the air pipe 7 and the compressed air source 8 is opened, and the switch closes the through-hole 5 on the piston 4. The piston 4 applies pressure to the glue 3, causing it to overflow from the dispensing needle 1. When dispensing is not needed, the valve connecting the air pipe 7 and the compressed air source 8 is closed, and the switch opens the through-hole 5 on the piston 4. After the air pressure is removed, even if there is friction between the piston 4 and the needle tube 2, the through-hole 5 on the piston 4 will connect the glue 3 to the space above the piston 4 in the needle tube 2. The internal pressure on the glue 3 caused by the friction between the piston 4 and the inner wall of the needle tube 2 will be released, thus preventing the glue 3 from continuously overflowing from the needle. This effectively solves the problem of continuous glue overflow after the air pressure is removed when dispensing is complete. Furthermore, since the amount of glue 3 dispensed is completely controlled, the accuracy of glue quantity control is improved, increasing production efficiency.

[0023] In one implementation, the switch is a switching valve, which is located at the top of the through hole 5. The switching valve controls the opening or closing of the through hole 5, thereby allowing the glue 3 to communicate with or be separated from the space above the top surface of the piston 4. The through hole 5 may or may not be located at the center of the piston 4. The switching valve can be an electric valve, etc., which can be electrically connected to a controller, allowing the controller to directly control the opening and closing of the switching valve.

[0024] In another embodiment, the switch is a sealing ball 6, which is disposed on the top surface of the piston 4. The sealing ball 6 can seal the upper surface of the through hole 5 when the valve is open and open the upper surface of the through hole 5 when the valve is closed. In this embodiment, when the valve connecting the air pipe 7 and the compressed air source 8 is open, the sealing ball 6 can block the through hole 5 on the piston 4 under the action of air pressure. When the valve connecting the air pipe 7 and the compressed air source 8 is closed, since there is no air pressure, although the sealing ball 6 does not leave the top surface of the piston 4, a gap between the sealing ball 6 and the top surface of the piston 4 or the sealing ball 6 completely leaving the top surface of the piston 4 will make the glue 3 and the space above the top surface of the piston 4 conduct through, releasing the pressure of the glue 3 and ensuring that the glue 3 will not continuously overflow from the needle.

[0025] The through hole 5 can be set at the center of the piston 4. The air inlet on the needle tube 2, which is connected to the air tube 7, is located directly above the through hole 5. The sealing ball 6 is located between the through hole 5 and the air inlet, ensuring that the sealing ball 6 can block the through hole 5 under the action of air pressure.

[0026] In this embodiment, the top surface of the piston 4 can be a plane. Optimally, the top surface of the piston 4 can also be an arc surface that is concave from the periphery to the center. The bottom of the sealing ball 6 and the top surface of the through hole 5 are both located at the lowest point of the arc surface, ensuring that the sealing ball 6 is directly opposite the through hole 5.

[0027] Furthermore, the sealing ball 6 is made of plastic material, and the density of the plastic material is less than 2 g / cm³. 3 The plastic material can specifically be polyethylene, polypropylene, etc., which has advantages such as being lightweight, having good chemical stability, and possessing a certain degree of elasticity.

[0028] As one implementation method, the sealing ball 6 can be placed directly on the top surface of the piston 4. After closing the valve connecting the air pipe 7 and the compressed air source 8, the sealing ball 6 is not subjected to air pressure and therefore does not provide a good seal. The gap between the sealing ball 6 and the top surface of the piston 4 allows the glue 3 to communicate with the space above the top surface of the piston 4, releasing the pressure of the glue 3 and ensuring that the glue 3 does not continuously overflow from the needle. Optimally, the sealing ball 6 is a hollow structure. Furthermore, the hollow sealing ball 6 has a thin outer wall and is filled with a gas that can provide buoyancy, such as helium.

[0029] As one implementation method, the sealing ball 6 can also be suspended on the top wall of the needle tube 2 by a spring. When the valve connecting the air tube 7 and the compressed air source 8 is opened, the sealing ball 6 moves downward under the action of air pressure and blocks the through hole 5. When the valve connecting the air tube 7 and the compressed air source 8 is closed, the sealing ball 6 can completely leave the top surface of the piston 4 under the action of the spring, so that the upper end surface of the through hole 5 is opened, thereby connecting the glue 3 with the space above the top surface of the piston 4.

[0030] Furthermore, the sealing ball 6 is a spherical or elliptical ball, and the diameter of the spherical ball or the horizontal diameter of the elliptical ball is larger than the diameter of the through hole 5.

[0031] Furthermore, the through hole 5 can be a circular through hole or a conical through hole.

[0032] In this embodiment, the optical module dispensing system also includes a controller. The valve is electrically connected to the controller, and the switching valve in the through hole 5 is also connected to the controller. The controller can control the valve in the through hole 5 and the valve connecting the air pipe 7 and the compressed air source 8 respectively, and can also link the valve with the switching valve.

[0033] Furthermore, the optical module dispensing system also includes an adjustment mechanism for moving the needle 2 in the horizontal and vertical directions. In use, simply assemble the needle 2 of this embodiment onto the adjustment mechanism to perform the dispensing operation normally, without requiring any modifications to other structures. The optical module dispensing system of this embodiment can be used for dispensing adhesives such as silver paste.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dispensing system for an optical module, comprising a syringe, a piston, a dispensing needle, an air tube, and a compressed air source, wherein the lower end of the syringe is provided with a dispensing needle, the upper end of the syringe is connected to one end of the air tube, and the other end of the air tube is connected to the compressed air source via a valve; a piston is provided inside the syringe, characterized in that: The piston is provided with a through hole penetrating from top to bottom, and the top of the through hole is provided with a switch for opening or closing the through hole; the switch is a sealing ball arranged on the top surface of the piston, and the sealing ball can seal the upper end surface of the through hole when the valve is opened, and open the upper end surface of the through hole when the valve is closed; the sealing ball is made of plastic material, and the density is less than 2 g / cm 3 ; the sealing ball is directly placed on the top surface of the piston, or the sealing ball is suspended on the top wall of the needle tube through a spring.

2. The optical module dispensing system as described in claim 1, characterized in that: The top surface of the piston is either a flat surface or an arc surface that is concave from the periphery to the center.

3. The optical module dispensing system as described in claim 1, characterized in that: The sealing sphere has a hollow structure.

4. The optical module dispensing system as described in claim 1, characterized in that: The sealing ball is a spherical or elliptical ball, and its diameter is larger than the diameter of the through hole.

5. The optical module dispensing system as described in claim 1, characterized in that: The through hole is either a circular through hole or a conical through hole.

6. The optical module dispensing system as described in claim 1, characterized in that: The optical module dispensing system also includes a controller, and the valve is electrically connected to the controller.

7. The optical module dispensing system as described in claim 1, characterized in that: The optical module dispensing system also includes an adjustment mechanism for moving the needle in the horizontal and vertical directions.

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