Novel dispensing mechanism and dispensing device

Abstract

The utility model belongs to the field of dispensing, and particularly relates to a dispensing mechanism and a dispensing device. Comprising a dispensing unit, the dispensing unit comprises a needle head and a needle cylinder, the needle head is communicated with the needle cylinder, and a glue outlet of the needle head faces the side face; and the hollow part motor and the dispensing unit are installed in a matched mode, and the hollow stepping motor works to enable the needle head and the needle cylinder to rotate. The utility model provides a novel glue dispensing mechanism and a glue dispensing device, and aims to solve the problem that a needle deviates after rotating in the prior art.

Description

Technical Field

[0001] This utility model belongs to the field of dispensing, specifically relating to a novel dispensing mechanism and dispensing device. Background Technology

[0002] Optical devices are a crucial component of optical communication systems. During the manufacturing process of optical devices, especially certain specialized ones, adhesive dispensing is required at the soldering points for fixation. The existing technology uses adhesive dispensing devices to perform this process.

[0003] Existing dispensing devices include a dispensing mechanism, which comprises a needle, a syringe, and a timing pulley structure. The syringe contains adhesive, and the needle is in communication with the syringe, allowing the adhesive inside the syringe to enter the needle and exit from the needle's outlet. The timing pulley structure includes a motor and a timing belt, with the motor's output shaft engaging with the syringe via the timing belt. When the power mechanism operates, the timing pulley structure drives the entire syringe and needle to rotate, ensuring that the needle's outlet remains directly facing the optical device requiring dispensing as it completes one revolution around the dispensing position. The existing dispensing mechanism can be referenced in patent application number 202411011326.4, entitled "Automatic Dispensing Equipment for Optical Devices."

[0004] However, because the synchronous belt pulley structure is used to drive the syringe to rotate, the accuracy of the synchronous belt pulley transmission is low, so the position of the needle often shifts and becomes misaligned after rotation. Utility Model Content

[0005] This utility model provides a novel dispensing mechanism and dispensing device, the purpose of which is to solve the problem of needle deviation after rotation in the prior art.

[0006] To achieve the above objectives, this utility model provides a novel dispensing mechanism, including...

[0007] A dispensing unit, comprising a needle and a syringe, the needle communicating with the syringe, the dispensing port of the needle facing to the side; and

[0008] A hollow stepper motor is installed in conjunction with the dispensing unit. When the hollow stepper motor operates, it causes the needle and syringe to rotate.

[0009] The dispensing unit in this solution is used for dispensing adhesive, and a hollow stepper motor is installed in conjunction with the dispensing unit. When the hollow stepper motor operates, it drives the dispensing unit to rotate. The hollow stepper motor has high precision, so when the hollow stepper motor drives the dispensing unit to rotate, the needle will not deviate, thus solving the shortcomings of the existing technology.

[0010] Preferably, to facilitate the installation of the dispensing unit and the hollow stepper motor, the dispensing unit in this design further includes an adapter tube. The two ends of the adapter tube are connected to the needle and the syringe, respectively, and the syringe and needle are connected through the adapter tube. The adapter tube is installed in conjunction with the hollow stepper motor. This design configures the adapter tube to be installed in conjunction with the hollow stepper motor. The two ends of the adapter tube are connected to the needle and the syringe, respectively. When the adapter tube rotates, it drives the needle and the syringe to rotate accordingly.

[0011] Preferably, to avoid needle misalignment when changing syringes, the adapter tube is detachably connected to the syringe. Since the adapter tube and syringe are detachably connected, when the syringe needs to be changed, simply disconnect the syringe from the adapter tube; the needle position remains unchanged, thus preventing needle misalignment.

[0012] Preferably, since the adapter tube and the syringe are detachably connected, a stabilizing frame is also included in this design to ensure a more stable connection between them. The stabilizing frame is positioned at the connection point between the syringe and the adapter tube and is connected to the adapter tube. The stabilizing frame has a receiving groove into which the syringe can be accommodated. In this design, the syringe can be accommodated within the receiving groove of the stabilizing frame, while the stabilizing frame is fixedly connected to the adapter tube. Therefore, the stabilizing frame stabilizes the syringe and adapter tube, making them more stable.

[0013] Preferably, to detect the number of dispensing rotations of the needle, this solution further includes a detection module. The detection module includes a detector and a connecting piece. The connecting piece is connected to the dispensing unit, and the detector is positioned corresponding to the connecting piece. In this solution, the connecting piece is connected to the dispensing unit, so when the dispensing unit rotates, the connecting piece also rotates. When the connecting piece rotates, it is detected by the detector, which can then determine the number of rotations of the connecting piece.

[0014] Preferably, to achieve dispensing around the optical device and to ensure the needle can move precisely to the dispensing position on the optical device, this solution also includes a moving module connected to the hollow stepper motor. The moving module drives the needle to move. This solution uses the moving module as the power source to move the needle, allowing it to dispense around the optical device and precisely reach the dispensing position.

[0015] Preferably, to enable the needle to move to the dispensing height, the moving module of this solution includes a lifting unit, which drives the dispensing unit to move up and down. In this solution, the lifting unit drives the dispensing unit to move up and down, allowing the needle to move precisely to the dispensing height, thereby achieving precise dispensing.

[0016] Preferably, to ensure the needle wraps around the optical device and moves precisely to the dispensing position, the moving module in this solution includes a lateral movement unit, which drives the dispensing unit to move laterally. This solution configures the lateral movement unit to drive the dispensing unit to move in a circle and to precisely move the needle to the dispensing position.

[0017] Preferably, to identify the location of the optical device and the dispensing location, this solution further includes an image recognition module and a controller, wherein the image recognition module and the movement module are signal-connected to the controller. This solution uses the image recognition module to identify the location of the optical device and the dispensing location, and then feeds the location information back to the controller. The controller controls the movement module to move the needle precisely to the dispensing location for dispensing.

[0018] The second aspect of this utility model discloses a dispensing device, including the novel dispensing mechanism described above and a workpiece fixture, wherein the workpiece fixture is used to place a workpiece. An optical device is placed on the workpiece fixture, and then the novel dispensing mechanism dispenses adhesive onto the optical device on the workpiece fixture.

[0019] The beneficial effects of this utility model are as follows: The dispensing unit of this solution is used for dispensing adhesive, and the hollow stepper motor is installed in conjunction with the dispensing unit. When the hollow stepper motor works, it drives the dispensing unit to rotate. The hollow stepper motor has high precision, so when the hollow stepper motor drives the dispensing unit to rotate, the needle will not deviate, thus solving the shortcomings of the prior art. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the novel dispensing mechanism in Example 1.

[0021] Figure 2 This is a schematic diagram of the novel dispensing mechanism in Example 2.

[0022] Figure 3 This is a schematic diagram of the image recognition module and dispensing unit in Example 3.

[0023] Figure 4 This is a schematic diagram of the novel dispensing mechanism in Example 3.

[0024] The reference numerals in the attached drawings include: 1. Hollow stepper motor; 2. Dispensing unit; 21. Needle; 22. Adapter tube; 23. Syringe; 24. Stabilizer; 3. Mounting bracket; 4. Detection module; 41. Connecting piece; 42. Detector; 5. Moving module; 51. Lifting unit; 52. Lateral movement unit; 6. Image recognition module. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0026] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" are defined based on the contours of the corresponding components. Terms such as "first" and "second" used in this disclosure are for distinguishing one element from another and do not imply sequence or importance.

[0027] Example 1

[0028] The basics are as follows: Figure 1 As shown, a novel dispensing mechanism includes a hollow stepper motor 1, a dispensing unit 2, and a mounting bracket 3.

[0029] In this embodiment, the hollow stepper motor 1 is mounted on the mounting bracket 3, which serves as the mounting base for the hollow stepper motor 1. The hollow stepper motor 1 can be connected and installed to the mounting bracket 3 by welding or by setting fasteners. The dispensing unit 2 includes a needle 21, an adapter tube 22, and a syringe 23. The syringe 23 and the needle 21 are respectively positioned above and below the hollow stepper motor 1. The syringe 23 is specifically a cylindrical body that can contain adhesive. The needle 21 is an L-shaped needle with its outlet facing to the side. An adapter tube, which is a metal tube, is installed inside the hollow stepper motor 1. The upper end of the adapter tube is connected to the syringe 23, and the lower end is connected to the needle 21. The syringe 23 and the needle 21 are connected through the adapter tube, and the adhesive contained inside the syringe 23 can be released through the adapter tube to the needle 21, and finally released from the outlet of the needle 21 to the outside to complete the dispensing.

[0030] It should be noted that in this embodiment, the adapter tube 22 is used to cooperate with the hollow stepper motor 1 for installation. However, in some other embodiments, the length of the needle 21 can be increased, and then the needle 21 can be installed into the hollow stepper motor 1.

[0031] In this embodiment, the syringe 23 and the adapter tube 22 are preferably detachably connected, specifically by a plug-in connection. When the syringe 23 needs to be replaced, it is disconnected from the adapter tube 22, allowing for easy replacement. During syringe replacement, the needle 21 remains connected to the adapter tube 22, preventing misalignment and eliminating the need for needle alignment, thus facilitating use. Furthermore, since the syringe 23 and adapter tube 22 are detachably connected, a stabilizing frame 24 is provided at the connection point to ensure a more stable connection. The stabilizing frame 24 is a rectangular frame, which can be made of metal or plastic. Inside the stabilizing frame 24 is a cylindrical receiving groove, the size of which is adapted to the size of the syringe 23, and the groove can accommodate the syringe 23. The lower end of the stabilizer 24 is fixedly connected to the adapter tube 22 by welding or bonding. Therefore, in this embodiment, the stabilizer 24 serves as a support, which keeps the syringe 23 stable and ensures a stable connection between the adapter tube 22 and the syringe 23, preventing the syringe 23 from separating from the adapter tube 22 during rotation.

[0032] In this embodiment, the needle 21 is an L-shaped needle. Therefore, when the hollow stepper motor 1 drives the adapter tube 22 to rotate, the syringe 23 and the needle 21 will also rotate accordingly. When the needle 21 rotates, the dispensing direction of the needle 21 changes accordingly, so that the outlet of the needle 21 can always face the side of the optical device, and the outlet of the needle 21 is aligned with the position where the adhesive needs to be dispensed.

[0033] Since the syringe 23 rotates when the hollow stepper motor 1 is working, to ensure the normal output of the adhesive solution inside the syringe 23 and to prevent problems such as tubing entanglement during rotation, this embodiment preferably uses pneumatic discharge of the adhesive solution from the syringe 23. During installation, an adapter is installed on the top of the syringe 23, and the adapter is connected to a rotary joint. The rotary joint is then connected to an air tube, which in turn is connected to an air supply device. The air supply device can be an air pump or other existing air supply devices.

[0034] The dispensing process is described below: When dispensing is required, the air supply device operates. The air supply device outputs airflow to the air tube. The gas enters the syringe 23 through the rotary joint and adapter, pushing the adhesive liquid inside the syringe 23 outwards. Simultaneously, when the syringe 23 rotates, the air tube will not become entangled due to the rotary joint.

[0035] Example 2

[0036] This embodiment is an improvement on embodiment 1, such as... Figure 2As shown, this embodiment includes a detection module 4 to determine the number of dispensing turns. The detection module 4 detects the number of rotations of the needle 21 to determine the number of dispensing turns. The detection module 4 includes a detector 42, a connecting piece 41, and a mounting plate. The mounting plate is located on top of the hollow stepper motor 1 and is connected to the hollow stepper motor 1 by welding or fasteners. The mounting plate serves as the mounting base for the detector 42. The detector 42 is preferably a photoelectric sensor, which is mounted on the top of the mounting plate by fasteners or adhesive. The connecting piece 41 is fixedly connected to the adapter tube. Specifically, the adapter tube can be welded to the connecting piece 41. When the adapter tube is driven to rotate by the hollow stepper motor 1, the connecting piece 41 also rotates. The rotation of the connecting piece 41 passes through the photoelectric sensor and is thus identified by the photoelectric sensor. By detecting the number of rotations of the connecting piece 41 by the photoelectric sensor, the number of dispensing turns is determined, and thus the number of dispensing turns is determined.

[0037] It should be noted that in this embodiment, the photoelectric sensor is mounted on the mounting plate, which is then connected to the hollow stepper motor 1. However, in some other embodiments, the mounting plate can be located in other positions; for example, the mounting plate can be mounted on the mounting bracket 3, and then the detector 42 is mounted on the mounting plate. Furthermore, in this embodiment, the detector 42 is preferably a photoelectric sensor; however, in some other embodiments, the detector 42 can be other types of detectors, such as a pressure sensor, which detects the pressure when the connecting piece 41 contacts the pressure sensor.

[0038] Example 3

[0039] This embodiment is an improvement on embodiment 1 or embodiment 2, such as... Figure 3 and Figure 4 As shown, in this embodiment, a moving module 5 is provided to enable the movement of the needle 21. The moving module 5 serves as the driving force for the movement of the needle 21.

[0040] The moving module 5 in this embodiment includes a lifting unit 51 and a lateral moving unit 52. The lifting unit 51 is preferably an electric slide table, which is vertically arranged. The mounting frame 3 can be fixedly connected to the slider in the electric slide table via a connecting plate. When the electric slide table is working, it drives a sliding lifting motion, thereby causing the mounting frame 3 and the needle 21, syringe 23, adapter tube, and hollow stepper motor 1 mounted on the mounting frame 3 to move up and down. When the lifting unit 51 drives the needle 21 to move up and down, the needle 21 moves closer to or further away from the optical device. The lateral moving unit 52 is specifically an XY motion module, fixedly connected to the lifting unit 51, specifically through fasteners. The lateral moving unit 52 can drive the lifting unit 51 to move in the XY direction, thereby adjusting the horizontal position of the needle 21.

[0041] It should be noted that the moving module 5 in this embodiment is only one implementation of the moving module 5. In some other implementations, the moving module 5 may also be a robotic arm, which drives the dispensing position of the needle 21 to change.

[0042] The working process of the moving module 5 is described below: When dispensing is required, the moving module 5 drives the needle 21 to precisely move to the dispensing position to achieve dispensing. Simultaneously, the moving module 5 drives the needle 21 to perform a circular motion, ensuring that dispensing can be achieved around the entire optical device. As the needle 21 performs this circular motion around the optical device, it is rotated by the hollow stepper motor 1, ensuring that the dispensing port of the needle 21 always faces the side of the optical device.

[0043] To determine the position of the light-emitting device and ensure that the needle 21 accurately reaches the location where adhesive needs to be applied, this embodiment also includes an image recognition module 6 and a controller. The image recognition module 6 can be an image recognition camera, which is mounted on a connecting plate connected to the mounting bracket 3. The image recognition camera and the controller are in a signal connection state. The controller and the motion module 5 are also in a signal connection state. The controller can be an industrial computer or a PLC control module, or other existing technology controllers.

[0044] The following describes the cooperation process between the image recognition module 6 and the moving module 5: When dispensing is required, the moving module 5 moves, allowing the image recognition camera on the mounting bracket 3 to identify the position of the optical device and feed the position information back to the controller. The controller controls the moving module 5 to move precisely, ensuring that the dispensing nozzle of the needle 21 reaches the required dispensing position, thus completing the dispensing process.

[0045] Example 4

[0046] This embodiment provides a dispensing device, including the novel dispensing mechanism of Embodiment 3 and a workpiece fixture. The workpiece fixture is elongated. The surface of the workpiece fixture has several positioning grooves. The positioning grooves are generally rectangular, and the interior of the positioning grooves is used to accommodate optical devices, so that the optical devices remain stable. The needle 21 in the novel dispensing mechanism moves to the optical device on the workpiece fixture to complete the dispensing of adhesive to the optical device.

[0047] Meanwhile, to ensure greater stability of the optical device on the workpiece fixture, this embodiment also includes a positioning channel constructed on the side of the positioning groove. A spring is installed inside the positioning channel, and the spring engages with a top ball. The top ball is located at the opening of the positioning channel. When the optical device is inside the positioning groove, the top ball holds the optical device in place, making it more stable within the positioning groove.

[0048] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A novel dispensing mechanism, characterized by: include A dispensing unit, comprising a needle and a syringe, the needle communicating with the syringe, the dispensing port of the needle facing to the side; and A hollow stepper motor is installed in conjunction with the dispensing unit. When the hollow stepper motor operates, it causes the needle and syringe to rotate.

2. The novel dispensing mechanism according to claim 1, wherein: The dispensing unit also includes an adapter tube, the two ends of which are connected to the needle and the syringe respectively, and the syringe and the needle are connected through the adapter tube; The adapter pipe is installed in conjunction with the hollow stepper motor.

3. The novel dispensing mechanism of claim 2, wherein: The adapter tube is detachably connected to the syringe.

4. The novel dispensing mechanism of claim 3, wherein: It also includes a stabilizer, which is disposed at the connection between the syringe and the adapter tube, and the stabilizer is connected to the adapter tube; The stabilizer has a receiving groove, and the syringe can be accommodated inside the receiving groove.

5. The novel dispensing mechanism of claim 1, wherein: It also includes a detection module, which includes a detector and a connecting piece. The connecting piece is connected to the dispensing unit, and the detector is set corresponding to the connecting piece.

6. The novel dispensing mechanism according to any one of claims 1 to 5, characterized in that: It also includes a moving module, which is connected to the hollow stepper motor and is used to move the needle.

7. The novel dispensing mechanism of claim 6, wherein: The moving module includes a lifting unit, which is used to move the dispensing unit up and down.

8. The novel dispensing mechanism of claim 6, wherein: The moving module includes a lateral movement unit, which is used to drive the dispensing unit to move laterally.

9. The novel dispensing mechanism of claim 6, wherein: It also includes an image recognition module and a controller, wherein the image recognition module and the motion module are signal-connected to the controller.

10. A dispensing device, characterized by: The invention includes the novel dispensing mechanism and workpiece fixture as described in any one of claims 1 to 9, wherein the workpiece fixture is used to place a workpiece.

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