Capillary dispensing device

Abstract

The utility model relates to a capillary dispensing device which comprises a dispensing stand, a three-axis moving group and a holding head, the three-axis moving group is arranged at the side part of the dispensing stand, the holding head is arranged at the end part of the three-axis moving group, the three-axis moving group is used for driving the holding head to move forwards, backwards, leftwards, rightwards, upwards and downwards, and a vertical seat is fixed at the top of the dispensing stand. A placing seat is fixed on the side part of the vertical seat, a containing groove for a capillary tube to be arranged in is formed in the placing seat, a vertically-through through hole is formed in the top of the dispensing stand and is positioned below the placing seat, and a detection camera of which the shooting end directly faces the through hole is arranged at the bottom of the dispensing stand and is positioned below the through hole. According to the utility model, the detection camera is used for shooting and detecting the extension amount of the capillary tube from the side edge of the placing seat, and the dispensing mechanism is used for dispensing when the extension amount of the capillary tube meets a preset value, so that the accuracy of the feeding position of the capillary tube is ensured, the glue can be completely injected into the cavity of the capillary tube, the leakage is avoided, and the dispensing quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of dispensing device technology, and in particular to a capillary dispensing device. 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] The port for inserting optical fibers into a capillary tube is typically tapered, with the diameter decreasing as it approaches the capillary cavity. When using traditional dispensing equipment to dispense adhesive into the capillary, positioning errors prevent the capillary from being precisely positioned. This makes it difficult for the dispensing head to accurately reach the intended position within the capillary cavity; the dispensing head can only reach the tapered port of the capillary. After dispensing, the adhesive easily leaks out from the port, resulting in poor dispensing performance and affecting the fixation of the optical fiber to the capillary. Utility Model Content

[0004] The purpose of this invention is to provide a capillary dispensing device with high positioning accuracy and high reliability.

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

[0006] A capillary dispensing device includes a dispensing frame, a three-axis moving assembly, and a suction head. The three-axis moving assembly is arranged on the side of the dispensing frame, and the suction head is arranged on the end of the three-axis moving assembly. The three-axis moving assembly is used to drive the suction head to move back and forth, left and right, up and down. A stand is fixed on the top of the dispensing frame, and a placement seat is fixed on the side of the stand. The placement seat has a groove for fitting and inserting a capillary. A vertical through-hole is provided on the top of the dispensing frame below the placement seat. A detection camera with its imaging end facing the through-hole is provided at the bottom of the dispensing frame below the through-hole. A dispensing mechanism is provided on the dispensing frame along its length on the side of the through-hole. The suction head presses the capillary tightly onto the groove, thereby achieving the positioning and fixation of the capillary.

[0007] Therefore, by using a detection camera to photograph and detect the amount of capillary protrusion from the side of the placement seat, and ensuring that the protrusion meets the predetermined value, the capillary is pressed firmly onto the container. Then, the dispensing mechanism performs dispensing, ensuring accurate capillary loading, preventing the capillary from slipping under the force of the injected adhesive, and guaranteeing that the adhesive is completely injected into the capillary cavity, avoiding leakage, ensuring dispensing quality, and improving injection reliability. Furthermore, the suction head serves both as the capillary loading / unloading component and as the capillary clamping and positioning component, achieving two functions in one.

[0008] Furthermore, a supplementary light is installed on one side of the dispensing stand along its width, located on the placement base. This helps improve the image quality of the inspection camera and increase positioning accuracy.

[0009] Furthermore, the dispensing mechanism includes a dispensing platform, a cylinder, an electric pusher cylinder, a syringe, and a dispensing needle. The dispensing platform is slidably mounted above the dispensing frame. The cylinder is fixed to the top of the dispensing frame, with the end of the cylinder's telescopic rod fixed to the dispensing platform. The electric pusher cylinder is positioned above the dispensing platform. The syringe is detachably mounted on the dispensing platform, with the end of the electric pusher cylinder's telescopic rod engaging with the piston rod of the syringe. The dispensing needle is fitted onto the syringe's output port. The syringe, dispensing needle, and dispensing reservoir are arranged coaxially. This simplifies the injection process and improves dispensing efficiency.

[0010] Furthermore, the three-axis moving assembly includes a pair of arched frames, a power guide rail A, a frame plate, a power rail B, a power rail C, and a mounting base. The two arched frames are arranged on both sides of the dispensing frame. The power guide rail A is installed on the top of one of the arched frames and extends back and forth. A movable seat A is slidably installed on the power guide rail A. One end of the frame plate is fixed to the top of the movable seat A, and the other end is slidably installed on the arched frame on the other side. The power rail B is arranged on the frame plate and extends left and right. A movable seat B is slidably installed on the power rail B. The power rail C is installed on the side of the movable seat B and extends vertically. A movable seat C is slidably installed on the side of the power rail C. The mounting base is fixed to the side of the movable seat C, and the suction head is installed on the side of the mounting base.

[0011] Furthermore, a sliding rail extending forward and backward is fixed to the top of the arched frame on the side away from the power guide rail A, and a slide block is slidably installed on the sliding rail, with one end of the frame plate fixed to the top of the slide block.

[0012] Furthermore, a material seat is provided on the top of the dispensing stand on one side of the upright, and the material seat is provided with a placement slot for the material feeding tray.

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

[0014] 1. After the capillary tube is pressed and loaded, the present invention uses a detection camera to photograph and detect the amount of the capillary tube extending from the side of the placement seat. When the amount of the capillary tube extending meets the predetermined value, the glue dispensing mechanism is used to perform glue dispensing to ensure the accuracy of the capillary tube loading position, ensure that the glue can be completely injected into the cavity of the capillary tube, avoid leakage, and ensure the glue dispensing quality.

[0015] 2. In this utility model, when the capillary tube is fed by the cooperation of the three-axis moving assembly and the suction head, the suction head is used to hold and transfer the capillary tube into the receiving groove and press it tightly. This can fix the capillary tube in position and ensure that it will not shift during dispensing, thus ensuring the stability of dispensing. The suction head serves as both the loading and unloading component of the capillary tube and the pressing and positioning component of the capillary tube, achieving two goals at once. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural diagram of the upper part of the dispensing stand in this utility model;

[0018] Figure 3 This is a schematic diagram of the placement base structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the three-axis moving assembly structure in this utility model;

[0020] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 6 This is a schematic diagram of the dispensing device in this utility model.

[0022] In the diagram: 1. Dispensing stand; 11. Through-hole; 12. Inspection camera; 13. Fill light; 2. Three-axis moving assembly; 21. Arch frame; 211. Slide rail; 212. Slide seat; 22. Power guide rail A; 23. Moving seat A; 24. Shelf plate; 25. Power rail B; 26. Moving seat B; 27. Power rail C; 28. Moving seat C; 29. ​​Mounting seat; 3. Suction head; 4. Stand; 41. Placement seat; 42. Container; 5. Dispensing mechanism; 51. Dispensing platform; 52. Cylinder; 53. Electric push cylinder; 54. Injector; 55. Dispensing needle; 6. Material holder; 61. Placement trough; 7. Hot air blower. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-6This utility model provides a capillary dispensing device, including a dispensing frame 1, a three-axis moving assembly 2, and a suction head 3. The three-axis moving assembly 2 is arranged on the side of the dispensing frame 1, and the suction head 3 is arranged on the end of the three-axis moving assembly 2. The three-axis moving assembly 2 is used to drive the suction head 3 to move back and forth, left and right, up and down. The suction head 3 uses negative pressure to suck up the capillary. The three-axis moving assembly 2 drives the suction head 3 to move, realizing the transfer and loading / unloading of the capillary. The gas distribution system and negative pressure suction principle of the suction head 3 adopt existing technology, which will not be described in detail here.

[0025] A stand 4 is fixed on the top of the dispensing stand 1, and a placement seat 41 is fixed on the side of the stand 4. The placement seat 41 is provided with a trough 42 for the capillary tube to be matched and placed. The three-axis moving assembly 2 drives the suction head 3 to move, and the capillary tube to be suctioned is fed into the trough 42. The suction head 3 is used to press the capillary tube to achieve the positioning and fixing of the capillary tube. The suction head 3 serves as both the loading and unloading part of the capillary tube and the pressing and positioning part of the capillary tube, achieving two goals at once.

[0026] The top of the dispensing stand 1, below the placement base 41, has a vertically penetrating through-hole 11. At the bottom of the dispensing stand 1, below the through-hole 11, is a detection camera 12 with its imaging end facing the through-hole 11. The detection camera 12 uses existing technology; the specific imaging and detection principle will not be elaborated further. On the dispensing stand 1, along its length, on one side of the through-hole 11, is a dispensing mechanism 5. After the capillary tube is pressed and positioned within the container 42, as... Figure 3 As shown, the dispensing end of the capillary extends beyond the edge of the placement seat 41, that is, the dispensing end of the capillary extends from the side of the placement seat 41. The detection camera 12 takes pictures and analyzes the extension of the capillary. When the extension of the capillary meets the preset value, it means that the dispensing end of the capillary has reached the designated position. After pressing the capillary, the dispensing mechanism 5 is used to perform dispensing to ensure that the glue can be completely injected into the cavity of the capillary to avoid leakage and ensure the quality of dispensing. Otherwise, it means that the position of the capillary is incorrect and the capillary needs to be moved until the extension of the capillary meets the preset value or the material is reloaded. After the dispensing is completed, the capillary can be unloaded.

[0027] After the capillary tube is pressed and loaded, the present invention uses a detection camera 12 to photograph and detect the amount of the capillary tube extending from the side of the placement seat 41. When the amount of the capillary tube extending meets the predetermined value, the dispensing mechanism 5 is used to perform dispensing treatment to ensure the accuracy of the capillary tube loading position, ensure that the glue can be completely injected into the cavity of the capillary tube, avoid leakage, and ensure the quality of dispensing.

[0028] Furthermore, when loading capillary tubes using the three-axis moving assembly 2 and the suction head 3, the suction head 3 holds the capillary tubes in the transfer groove 42 and presses them firmly, which can position and fix the capillary tubes, ensuring that the capillary tubes will not shift during dispensing and ensuring the stability of dispensing. The suction head 3 serves as both a loading and unloading component for capillary tubes and a pressing and positioning component for capillary tubes, achieving two goals at once.

[0029] Specifically, on the dispensing stand 1, a supplementary light 13 is provided on one side of the placement seat 41 along its width direction to facilitate supplementary lighting for shooting and testing.

[0030] Specifically, the dispensing mechanism 5 includes a dispensing platform 51, a cylinder 52, an electric push cylinder 53, a syringe 54, and a dispensing needle 55. The dispensing platform 51 is slidably mounted above the dispensing frame 1. The cylinder 52 is fixed to the top of the dispensing frame 1, and the end of the telescopic rod of the cylinder 52 is fixed to the dispensing platform 51. The electric push cylinder 53 is arranged above the dispensing platform 51. The syringe 54 is detachably mounted on the dispensing platform 51. The installation method of the syringe 54 adopts existing technology, and the specific details will not be disclosed. The detachable design of the syringe 54 facilitates timely replenishment when the glue is exhausted. The end of the telescopic rod of the electric push cylinder 53 abuts against the piston rod tail of the syringe 54. The dispensing needle 55 is fitted onto the output port of the syringe 54. The syringe 54, the dispensing needle 55, and the receiving groove 42 are arranged coaxially.

[0031] During dispensing, the cylinder 52 extends to push the dispensing platform 51 closer to the placement seat 41 until the dispensing needle 55 is precisely inserted into the capillary tube. The electric push cylinder 53 then extends to move the piston rod of the syringe 54, injecting the glue into the capillary tube through the dispensing needle 55. After dispensing, the cylinder 52 retracts to remove the dispensing needle 55 from the capillary tube. The electric push cylinder 53 extends again for the next dispensing cycle.

[0032] Specifically, the three-axis moving assembly 2 includes a pair of arched frames 21, a power guide rail A22, a frame plate 24, a power rail B25, a power rail C27, and a mounting base 29. The two arched frames 21 are arranged on both sides of the dispensing platform 1. The power guide rail A22 is mounted on the top of one of the arched frames 21 and extends forward and backward. A movable seat A23 is slidably mounted on the power guide rail A22. One end of the frame plate 24 is fixed to the top of the movable seat A23, and the other end is slidably mounted on the arched frame 21 on the other side. The power rail B25 is arranged on the frame plate 24 and extends left and right. A movable seat B26 is slidably mounted on the power rail B25. The power rail C27 is installed on the side of the movable seat B26 and extends vertically. The movable seat C28 is slidably installed on the side of the power rail C27. The mounting seat 29 is fixed on the side of the movable seat C28. The suction head 3 is installed on the side of the mounting seat 29. The movable seat A23 can be driven to move back and forth through the operation of the power guide rail A22. The movable seat B26 can be driven to move left and right through the operation of the power rail B25. All of these adopt existing technologies and will not be disclosed in detail. The movable seat C28 can be driven to move up and down through the operation of the power rail C27, thereby realizing the translational adjustment of the suction head 3 in the up, down, left, right and forward and backward directions, providing a drive for the position adjustment of the suction head 3.

[0033] Specifically, the top of the arched frame 21 on the side away from the power guide rail A22 is fixed with a slide rail 211 extending forward and backward. A slide block 212 is slidably installed on the slide rail 211. One end of the frame plate 24 is fixed to the top of the slide block 212. The sliding cooperation between the slide block 212 and the slide rail 211 provides guidance, limitation and support for the forward and backward movement of the frame plate 24, ensuring that the translation process of the frame plate 24 is smooth and stable enough.

[0034] Specifically, on the dispensing stand 1, a material seat 6 is provided on one side of the stand 4 along its width direction. The material seat 6 is provided with a placement groove 61 for placing the material tray. Placing the material tray containing the capillary tube in the placement groove 61 makes it easy for the suction head 3 to pick up the material.

[0035] Preferably, a hot air blower 7 is provided on the side of the dispensing platform 1 opposite to the dispensing mechanism 5 along its length. The hot air blower 7 delivers hot air along the length of the dispensing platform 1 to heat the capillary tube and improve the quality of adhesive application. After the suction head 3 picks up the capillary tube from the placement groove 61, it is first moved to the outlet of the hot air blower 7 for heating, and then the capillary tube is transferred to the container 42. The hot air delivered by the outlet of the hot air blower 7 can reach the container 42 and the dispensing mechanism 5, thereby reducing the dispensing resistance of the dispensing mechanism 5 and improving the heat preservation effect of the capillary tube.

[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 capillary dispensing device, characterized in that: It includes a dispensing stand (1), a three-axis moving assembly (2) and a suction head (3). The three-axis moving assembly (2) is arranged on the side of the dispensing stand (1), and the suction head (3) is arranged on the end of the three-axis moving assembly (2). The three-axis moving assembly (2) is used to drive the suction head (3) to move back, forth, left, right and up. The top of the dispensing stand (1) is fixed with a stand (4), and the side of the stand (4) is fixed with a placement seat (41). The placement seat (41) is provided with a groove (42) for the capillary tube to be matched and inserted. The top of the dispensing stand (1) is provided with a vertical through-hole (11) located below the placement seat (41), and the bottom of the dispensing stand (1) is provided with a detection camera (12) with its shooting end facing the through-hole (11). On the dispensing stand (1), a dispensing mechanism (5) is provided along its length on one side of the through opening (11). The capillary tube is pressed onto the container (42) by the suction head (3) to achieve the positioning and fixation of the capillary tube.

2. The capillary dispensing device according to claim 1, characterized in that: A supplementary light (13) is provided on one side of the placement seat (41) along its width direction on the dispensing stand (1).

3. The capillary dispensing device according to claim 1, characterized in that: The dispensing mechanism (5) includes a dispensing platform (51), a cylinder (52), an electric push cylinder (53), a syringe (54), and a dispensing needle (55). The dispensing platform (51) is slidably mounted above the dispensing frame (1), and the cylinder (52) is fixed to the top of the dispensing frame (1). The end of the telescopic rod of the cylinder (52) is fixed to the dispensing platform (51). The electric push cylinder (53) is arranged above the dispensing platform (51), and the syringe (54) is detachably installed on the dispensing platform (51). The end of the telescopic rod of the electric push cylinder (53) abuts against the end of the piston rod of the syringe (54). The dispensing needle (55) is mounted on the output port of the syringe (54); The syringe (54), the dispensing needle (55), and the reservoir (42) are arranged coaxially.

4. The capillary dispensing device according to claim 1, characterized in that: The three-axis moving assembly (2) includes a pair of arched frames (21), a power guide rail A (22), a frame plate (24), a power rail B (25), a power rail C (27), and a mounting base (29). The two arched frames (21) are arranged on both sides of the dispensing stand (1), and the power guide rail A (22) is installed on the top of one of the arched frames (21) and extends back and forth; The power guide rail A (22) is slidably mounted with a movable seat A (23). One end of the frame plate (24) is fixed to the top of the movable seat A (23), and the other end is slidably mounted on the arched frame (21) on the other side. The power track B (25) is arranged on the frame plate (24) and extends to the left and right. A movable seat B (26) is slidably installed on the power track B (25). The power track C (27) is installed on the side of the movable seat B (26) and extends vertically. The movable seat C (28) is slidably installed on the side of the power track C (27). The mounting seat (29) is fixed on the side of the movable seat C (28). The suction head (3) is installed on the side of the mounting seat (29).

5. The capillary dispensing device according to claim 4, characterized in that: The top of the arched frame (21) on the side away from the power guide rail A (22) is fixed with a slide rail (211) extending back and forth, and a slide block (212) is slidably mounted on the slide rail (211). One end of the frame plate (24) is fixed to the top of the slide (212).

6. The capillary dispensing device according to claim 1, characterized in that: The top of the dispensing stand (1) is provided with a material seat (6) on one side of the stand (4), and the material seat (6) is provided with a placement slot (61) for the material feeding tray.

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