Suction nozzle assembly

Abstract

The utility model relates to a suction nozzle component which comprises a mounting frame and a positioning end, the mounting frame is mounted on a three-axis moving group of dispensing equipment, a vertically distributed flow guide mechanism is arranged on the mounting frame, the bottom end of the flow guide mechanism is connected with a suction nozzle, the top end of the flow guide mechanism is used for being communicated with an air distribution system, and the suction nozzle is inserted into the positioning end in a penetrating manner. A positioning protruding block is fixed to the position, located on one side of the positioning end, of the lower surface of the positioning end, a containing groove matched with the capillary tube is formed in the lower surface of the suction nozzle, and a flow guide hole channel which vertically extends and is used for connecting the containing groove and the flow guide mechanism is formed in the suction nozzle. The lower end of the suction nozzle extends out of the lower side of the positioning end. According to the utility model, the flow guide mechanism is matched with the suction nozzle to work to generate negative pressure, so that the capillary tube can be firmly sucked, the capillary tube is transferred or fed and discharged by using negative pressure suction instead of a traditional clamping mode by using a clamping jaw, the situation that the cross section of the capillary tube is deformed due to excessive clamping is avoided, and the working efficiency is improved. Therefore, the sufficient injection amount of the glue is effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of suction nozzle technology, and in particular to a suction nozzle assembly. Background Technology

[0002] An optical fiber capillary is a tube that is fitted over the outside of an optical fiber to form a protective layer. When the optical fiber is placed inside the capillary, adhesive is usually applied inside the capillary to fix the optical fiber to the tube wall. In the current technology, adhesive application is mainly performed inside the capillary using dispensing equipment.

[0003] In the dispensing process, robotic arms are usually used to load and unload capillary tubes. Traditional robotic arms use grippers to pick up and transfer capillary tubes. However, the gripper gripping method has the following drawbacks: excessive gripping force can cause deformation of the capillary cross-section, affecting the amount of glue dispensed. In addition, it is difficult for the gripper to accurately load the capillary tube to the predetermined position, thus making it difficult to ensure that the glue is effectively injected into the accurate position of the capillary tube. Utility Model Content

[0004] The purpose of this invention is to provide a suction nozzle assembly that facilitates rapid and reliable positioning of a capillary tube.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A nozzle assembly includes a mounting bracket and a positioning end. The mounting bracket is mounted on a three-axis moving assembly of a dispensing device. The mounting bracket has vertically distributed flow guiding mechanisms. A suction nozzle is connected to the bottom end of the flow guiding mechanisms, and the top end of the flow guiding mechanisms is used to communicate with a gas distribution system. The suction nozzle is inserted through the positioning end. A positioning protrusion is fixed to one side of the lower surface of the positioning end. The lower surface of the suction nozzle has a groove adapted to a capillary tube. A vertically extending flow guiding channel is provided inside the suction nozzle to connect the groove and the flow guiding mechanisms. The lower end of the suction nozzle extends from the underside of the positioning end. When the capillary tube is adsorbed onto the groove, the end of the capillary tube not used for dispensing adhesive can abut against the positioning protrusion.

[0007] Therefore, it is evident that by utilizing the air distribution system in conjunction with the flow guiding mechanism and the suction nozzle to generate negative pressure, the capillary can be firmly held. This negative pressure suction replaces the traditional method of using grippers to transfer or load / unload the capillary, preventing over-clamping that could deform the capillary cross-section. This effectively ensures sufficient glue injection. By providing a groove at the bottom of the suction nozzle for the capillary to fit into, and by providing a positioning protrusion on the lower surface of the positioning end for contact positioning of the capillary, the capillary can be securely held on the suction nozzle, facilitating precise loading to the predetermined position. Furthermore, the protrusion prevents the capillary from moving backward under the glue injection pressure, ensuring accurate glue injection into the capillary and effectively improving positioning reliability and dispensing quality.

[0008] Furthermore, a vertically penetrating insertion groove is provided on the positioning end, and the suction nozzle is fixedly inserted into the insertion groove. The suction nozzle has a square cross-section, so the groove has a large contact surface to cooperate with the capillary, which improves the reliability of capillary positioning.

[0009] Furthermore, the flow guiding mechanism includes a flow guiding pipe, connector A, and connector B. The flow guiding pipe is vertically arranged on the mounting frame. Connector A is connected to the bottom end of the flow guiding pipe and is fixedly connected to the upper side of the suction nozzle and communicates with the flow guiding channel. Connector B is connected to the top end of the flow guiding pipe and communicates with the gas distribution system.

[0010] Furthermore, the mounting frame consists of a vertical plate and a horizontal plate. The vertical plate is fixed on the three-axis moving assembly of the dispensing equipment and extends vertically. The horizontal plate is fixed at the bottom of the mounting frame and is perpendicular to the vertical plate. The vertical plate and the horizontal plate form an L-shaped structure, and the guide tube is installed on the horizontal plate.

[0011] Furthermore, the horizontal plate is provided with a through hole, and a hollow rod is inserted through the through hole, with the guide tube slidingly inserted into the internal cavity of the hollow rod.

[0012] Furthermore, the outer wall of the guide tube has a boss, and a spring is sleeved on the outside of the guide tube. The top end of the spring is fixed to the bottom end of the hollow rod, and the other end is fixed to the upper surface of the boss.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0014] 1. This utility model utilizes the air distribution system of the flow guiding mechanism and the suction nozzle to generate negative pressure, which can firmly hold the capillary tube. The negative pressure suction replaces the traditional method of using clamps to transfer or load / unload the capillary tube, and there is no situation where excessive clamping causes deformation of the capillary tube cross-section, thus effectively ensuring that the amount of glue injected is sufficient.

[0015] 2. This utility model, by providing a groove at the bottom of the suction nozzle for the capillary to be matched and inserted, and by providing a positioning protrusion on the lower surface of the positioning end for contact positioning of the capillary, can ensure that the capillary can be positioned and held on the suction nozzle, thereby enabling the capillary to be accurately fed to the predetermined position and ensuring that the glue can be accurately injected into the capillary, effectively improving the glue dispensing quality.

[0016] 3. This utility model adds a boss and a spring to the outside of the guide tube. When the three-axis moving assembly pushes the mounting bracket down to press the suction nozzle tightly onto the positioning seat, if the pressure is too high, the guide tube and the suction nozzle will slide upward. At this time, the spring is compressed and stores force, which plays a buffering role and avoids excessive pressure that could cause the capillary to deform, thus further improving the dispensing quality. In addition, the elastic restraint effect of the spring can ensure that the suction nozzle can be pressed tightly onto the positioning seat to ensure the firmness of the capillary. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 3 This is a detailed structural diagram of the suction nozzle in this utility model;

[0020] Figure 4 This is a detailed structural diagram of the positioning seat in this utility model;

[0021] Figure 5 This is a three-dimensional schematic diagram of a partial structure of the present invention;

[0022] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B.

[0023] In the diagram: 1. Mounting bracket; 11. Vertical plate; 12. Horizontal plate; 13. Through hole; 2. Flow guiding mechanism; 21. Flow guiding pipe; 22. Connector A; 23. Connector B; 3. Suction nozzle; 31. Container groove; 32. Flow guiding channel; 4. Positioning end; 41. Positioning protrusion; 42. Insertion slot; 5. Hollow rod; 51. Internal cavity; 6. Boss; 7. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 The present invention provides a nozzle assembly, including a mounting frame 1 and a positioning end 4. The mounting frame 1 is mounted on a three-axis moving assembly of a dispensing device (not shown in the figure). The three-axis moving assembly adopts existing technology, and its specific structure and working principle will not be described in detail. The three-axis moving assembly can drive the mounting frame 1 to move back and forth, left and right, up and down to provide a drive for the transfer of capillary tubes.

[0026] The mounting bracket 1 is equipped with vertically distributed flow guiding mechanisms 2. The bottom end of the flow guiding mechanism 2 is connected to a suction nozzle 3, and the top end of the flow guiding mechanism 2 is used to communicate with the gas distribution system (not shown in the figure). The gas distribution system adopts existing technology, and the specific component structure and working principle will not be described in detail. It can generate negative pressure conditions and cancel negative pressure conditions. The suction nozzle 3 is inserted through the positioning end head 4. The lower surface of the positioning end head 4 is fixed with a positioning protrusion 41 on one side of the positioning end head 4. The lower surface of the suction nozzle 3 is provided with a receiving groove 31 adapted to the capillary tube. The suction nozzle 3 is provided with a vertically extending flow guiding channel 32 for connecting the receiving groove 31 and the flow guiding mechanism 2. The lower end of the suction nozzle 3 extends from the lower side of the positioning end head 4. When the capillary tube is adsorbed on the receiving groove 31, the end of the capillary tube not used for glue injection can abut against the positioning protrusion 41.

[0027] The mounting bracket 1, the flow guiding mechanism 2, and the suction nozzle 3 are moved above the material tray using a three-axis moving assembly, ensuring that the container 31 is aligned with the capillary tube. Then, the mounting bracket 1 is driven to move downwards by the three-axis moving assembly, causing the suction nozzle 3 to contact the capillary tube, making the capillary tube fit tightly against the inner wall of the container 31. At the same time, the end of the capillary tube is ensured to abut against the side of the positioning protrusion 41 to achieve positioning. Then, through the operation of the air distribution system, the capillary tube can be stably held on the container 31 by the pipeline formed by the flow guiding channel 32 and the flow guiding mechanism 2. Then, the capillary tube is transferred to the positioning seat by the three-axis moving assembly, and the mounting bracket 1 is driven to press down by the three-axis moving assembly to press the capillary tube firmly on the positioning seat, achieving precise positioning and fixing of the capillary tube, preventing the capillary tube from shifting during dispensing, and ensuring the stability of dispensing.

[0028] This invention utilizes the air distribution system of the flow guiding mechanism 2 and the suction nozzle 3 to generate negative pressure, which can firmly hold the capillary tube. The negative pressure suction replaces the traditional method of using clamps to transfer or load / unload the capillary tube, and avoids the situation of excessive clamping that causes deformation of the capillary tube cross-section, thereby effectively ensuring that the amount of glue injected is sufficient.

[0029] In addition, by providing a groove 31 at the bottom of the suction nozzle 3 for the capillary to be matched and inserted, and by providing a positioning protrusion 41 on the lower surface of the positioning end 4 for contact positioning of the capillary, it can be ensured that the capillary can be positioned and held on the suction nozzle 3, thereby facilitating the precise feeding of the capillary to the predetermined position and ensuring that the glue can be accurately injected into the capillary, effectively improving the glue dispensing quality.

[0030] Specifically, the positioning end 4 has a vertically penetrating insertion groove 42, and the suction nozzle 3 is fixedly inserted into the insertion groove 42. The insertion groove 42 has a square cross-section, and the suction nozzle 3 also has a square cross-section. When the suction nozzle 3 is inserted into the insertion groove 42, the receiving groove 31 has a large contact surface to cooperate with the capillary, which improves the reliability of capillary positioning and realizes reliable positioning of the suction nozzle 3 and the positioning end 4.

[0031] Specifically, the flow guiding mechanism 2 includes a flow guiding pipe 21, a connector A22, and a connector B23. The flow guiding pipe 21 is vertically arranged on the mounting frame 1. The connector A22 is connected to the bottom end of the flow guiding pipe 21. The connector A22 is fixedly connected to the upper side of the suction nozzle 3 and is connected to the flow guiding channel 32. The connector B23 is connected to the top end of the flow guiding pipe 21 and is connected to the gas distribution system (not shown in the figure). When the gas distribution system works, a negative pressure is generated in the pipeline system composed of the flow guiding pipe 21, connector A22, connector B23, and flow guiding channel 32, which can effectively and stably hold the capillary tube.

[0032] Specifically, the mounting frame 1 consists of a vertical plate 11 and a horizontal plate 12. The vertical plate 11 is fixed on the three-axis moving assembly of the dispensing equipment (not shown in the figure) and extends vertically. The horizontal plate 12 is fixed at the bottom of the mounting frame 1 and is perpendicular to the vertical plate 11. The vertical plate 11 and the horizontal plate 12 have an L-shaped structure. The guide tube 21 is installed on the horizontal plate 12. The vertical plate 11 is set vertically to adapt to the overall movement of the guide mechanism 2. The horizontal plate 12 is fixed horizontally at the bottom of the vertical plate 11 to provide a position for the installation of the guide mechanism 2.

[0033] Specifically, the horizontal plate 12 is provided with a through hole 13, and a hollow rod 5 is inserted through the through hole 13. The hollow rod 5 is fixedly connected to the horizontal plate 12. The guide tube 21 is slidably inserted into the internal cavity 51 of the hollow rod 5. By sliding the guide tube 21 into the internal cavity 51 of the hollow rod 5, the guide tube 21, connector A22, connector B23, suction nozzle 3 and positioning end 4 as a whole have the ability to slide up and down relative to the horizontal plate 12.

[0034] Specifically, the outer wall of the guide tube 21 has a boss 6, and a spring 7 is sleeved on the outside of the guide tube 21. The top end of the spring 7 is fixed to the bottom end of the hollow rod 5, and the other end is fixed to the upper surface of the boss 6.

[0035] By adding a boss 6 and a spring 7 to the outside of the guide tube 21, when the three-axis moving assembly pushes the mounting bracket 1 down to press the suction nozzle 3 onto the positioning seat, if the pressure is excessive, the guide tube 21 and the suction nozzle 3 will slide upward. At this time, the spring 7 is compressed and stores force, which plays a buffering role and avoids excessive pressure causing deformation of the capillary, thus further improving the dispensing quality. In addition, the elastic restraint effect of the spring 7 can ensure that the suction nozzle 3 can be pressed tightly onto the positioning seat to ensure the firmness of the capillary. Furthermore, when the three-axis moving assembly moves the suction nozzle 3 away from the positioning seat, the elastic reset action of the spring 7 can push the guide tube 21 and the suction nozzle 3 downward to reset.

[0036] The above is a detailed description of the present invention in conjunction with specific embodiments, and it should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the concept of the present invention, and which have the same performance or use, should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A suction nozzle assembly, characterized in that: It includes a mounting bracket (1) and a positioning end (4), wherein the mounting bracket (1) is mounted on the three-axis moving assembly of the dispensing equipment; The mounting bracket (1) is provided with vertically distributed flow guiding mechanisms (2), the bottom end of the flow guiding mechanism (2) is connected to a suction nozzle (3), and the top end of the flow guiding mechanism (2) is used to communicate with the gas distribution system. The suction nozzle (3) is inserted through the positioning end (4), and a positioning protrusion (41) is fixed on the lower surface of the positioning end (4) on one side of the positioning end (4). The lower surface of the suction nozzle (3) is provided with a groove (31) adapted to the capillary, and the suction nozzle (3) is provided with a vertically extending guide channel (32) for connecting the groove (31) and the guide mechanism (2). The lower end of the suction nozzle (3) extends from the lower side of the positioning end (4). When the capillary is adsorbed on the container (31), the end of the capillary that is not used for glue injection can abut against the positioning protrusion (41).

2. The suction nozzle assembly according to claim 1, characterized in that: The positioning end (4) is provided with a vertical through insertion groove (42), and the suction nozzle (3) is fixedly inserted into the insertion groove (42); The insert slot (42) has a square cross-section, and the suction nozzle (3) has a square cross-section.

3. The suction nozzle assembly according to claim 1, characterized in that: The flow guiding mechanism (2) includes a flow guiding pipe (21), a connector A (22) and a connector B (23); The guide tube (21) is vertically arranged on the mounting bracket (1); The connector A (22) is connected to the bottom end of the guide tube (21), the connector A (22) is fixedly connected to the upper side of the suction nozzle (3), and is connected to the guide channel (32); The connector B (23) is connected to the top of the guide pipe (21) and is connected to the gas distribution system.

4. A suction nozzle assembly according to claim 3, characterized in that: The mounting bracket (1) consists of a vertical plate (11) and a horizontal plate (12); The vertical plate (11) is fixed on the three-axis moving assembly of the dispensing equipment and extends vertically; The horizontal plate (12) is fixed to the bottom end of the mounting bracket (1) and is perpendicular to the vertical plate (11). The vertical plate (11) and the horizontal plate (12) form an L-shaped structure. The guide tube (21) is installed on the horizontal plate (12).

5. A suction nozzle assembly according to claim 4, characterized in that: The horizontal plate (12) is provided with a through hole (13), and a hollow rod (5) is inserted through the through hole (13). The guide tube (21) slides through the internal cavity (51) of the hollow rod (5).

6. A suction nozzle assembly according to claim 5, characterized in that: The guide tube (21) has a boss (6) on its outer wall and a spring (7) is sleeved on the outside of the guide tube (21). The top end of the spring (7) is fixed to the bottom end of the hollow rod (5), and the other end is fixed to the upper surface of the boss (6).

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