Dispensing device capable of multi-point synchronous dispensing

Abstract

The application discloses a dispensing device capable of multi-point synchronous glue dispensing, which comprises a monitoring device, a glue storage needle tube, a mixing and shunting groove and a plurality of distance-adjustable glue dispensing needles, the bottom of the glue storage needle tube is connected with the mixing and shunting groove, a shunting cavity in the mixing and shunting groove is connected with the glue dispensing needles through a plurality of glue shunting ports, the monitoring device is aligned with glue dispensing ports of the glue dispensing needles, and the glue dispensing state is monitored, and an alarm is given when an abnormality occurs. The glue dispensing needles can be freely slid to realize distance adjustment, and the glue shunting ports and the glue dispensing needles are connected through equal-length glue pipes. The application realizes multi-point synchronous precise glue dispensing, improves glue dispensing consistency and stability, can realize real-time monitoring of glue dispensing state to avoid batch defective products, and is convenient for needle adjustment and replacement, reduces maintenance cost, and is suitable for precise industrial production scenes such as electronic component packaging and component assembly.

Description

Technical Field

[0001] This utility model relates to a dispensing device capable of dispensing adhesive simultaneously at multiple points. Background Technology

[0002] In industrial production, multi-point dispensing operations such as electronic component packaging and component assembly place extremely high demands on dispensing consistency, curing consistency, and operational efficiency. These indicators are directly related to the final product quality and the overall production line capacity, and are core control points in precision manufacturing.

[0003] Traditional single-point dispensing devices require point-by-point operation to complete the process, which is cumbersome, time-consuming, and inefficient. They are no longer suitable for the high-efficiency processing requirements of modern industrial mass production and cannot meet the pace of rapid industry development.

[0004] While existing multi-point dispensing devices have improved operational efficiency, they still have significant technical shortcomings. For example, the lack of an effective dispensing monitoring mechanism makes it difficult to detect problems such as needle blockage and abnormal dispensing volume in real time, easily leading to batches of defective products. Furthermore, the needles are mostly fixed on the side, resulting in poor stability and easy shaking during operation, further reducing dispensing accuracy. Finally, the lack of a convenient needle adjustment and replacement mechanism makes maintenance complex and leads to high maintenance costs.

[0005] Therefore, the industry urgently needs a dispensing device that can achieve synchronous and precise glue dispensing, stable needle fixation, easy adjustment and maintenance, and real-time monitoring to solve the pain points of existing technologies. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a dispensing device capable of simultaneous dispensing at multiple points, thereby achieving precise, simultaneous dispensing at multiple points, improving dispensing consistency and stability, and resolving the pain points of traditional devices. The specific technical solution is as follows:

[0007] A dispensing device capable of simultaneous dispensing of adhesive at multiple points includes a monitoring device, an adhesive storage needle, a mixing and diverting tank, and multiple dispensing needles with adjustable distances.

[0008] The bottom of the glue storage needle is connected to the mixing and diversion tank. The mixing and diversion tank is provided with a diversion cavity inside. The bottom of the mixing and diversion tank is provided with multiple glue dispensing ports, and each glue dispensing port is connected to the corresponding glue dispensing needle.

[0009] The monitoring device is positioned directly above the dispensing nozzle of the dispensing needle to detect the size of the droplet and whether it is dripping. An alarm is triggered when there is no drip or the amount of dripping is too small at that location.

[0010] Regarding the method by which the monitoring device identifies the size of the droplet and whether it has dripped, either machine vision recognition or manual recognition can be used. In the machine vision recognition scheme: the monitoring device is a high-speed camera, and the information collected by the high-speed camera is transmitted to an image recognition system for status identification.

[0011] Manual identification scheme: The monitoring device is a high-speed camera, and the information collected by the high-speed camera is displayed on the screen for real-time observation.

[0012] Furthermore, the dispensing needle includes a needle body, a slider in the middle of the needle body, the slider being adapted to be installed in the adjustment device and can move left and right along the adjustment device, and the lower surface of the slider is provided with several threaded holes.

[0013] The adjustment device includes an adjustment groove body with a slide rail inside. The slider and the slide rail are precisely matched to allow for stepless adjustment of the needle spacing, adapting to different dispensing needs in different scenarios. It does not require disassembly or module replacement, greatly improving the versatility of the device.

[0014] The upper and lower ends of the adjustment groove body are respectively provided with an upper notch and a lower notch. The upper end of the needle body passes through the upper notch and the lower end passes through the lower notch. The notch avoidance design can prevent the needle from rubbing and getting stuck with the groove body, and at the same time help guide and prevent deviation.

[0015] The lower end of the adjusting groove body is provided with at least two elongated locking grooves along its length direction, and the length direction of the locking grooves is consistent with the moving direction of the slider.

[0016] A locking and positioning screw is inserted into the locking groove. The shank of the locking and positioning screw passes through the locking groove and is threaded into a threaded hole on the lower surface of the slider. The head diameter of the locking and positioning screw is larger than the width of the locking groove. The double locking grooves and screws form a multi-point fixation, solving the problem of unstable traditional needle fixation and ensuring dispensing accuracy. Furthermore, compared to the traditional side-fixing method, the bottom-fixing method is more stable and can prevent slider displacement caused by operational vibration.

[0017] Furthermore, the upper end of the needle body is provided with an external thread, and the end of the tubing is provided with an internal thread that matches the external thread. The external thread at the upper end of the needle body and the internal thread at the end of the tubing are compatible to form a detachable connection, allowing for quick disassembly and assembly of the needle without the need for special tools, which greatly shortens maintenance and replacement time and reduces operation and maintenance costs.

[0018] The dispensing port is connected to the corresponding dispensing needle via a dispensing tube of equal length. This ensures that the dispensing path length of the adhesive is consistent across all needles, avoiding uneven dispensing volume and speed due to differences in flow channels, guaranteeing consistent dispensing at multiple points, and adapting to batch precision dispensing needs.

[0019] Furthermore, the lower end of the needle body has a pointed structure. The pointed tip can be precisely aligned with tiny dispensing points, reducing the range of adhesive diffusion and preventing adhesive contamination of non-dispensing areas.

[0020] Furthermore, the top of the distribution chamber of the mixing and distribution tank is provided with a connection port adapted to the glue storage needle tube. The lower end of the glue storage needle tube is fixed in the connection port by interference fit or threaded fit, and the glue storage needle tube is in communication with the inside of the distribution chamber. This connection method not only ensures the stability of the connection and prevents it from falling off due to vibration during operation, but also achieves a sealed connection, avoiding glue leakage that would cause waste and equipment contamination.

[0021] Furthermore, the dispensing speed and pressure of the adhesive in the glue reservoir are controlled by a controllable drive device, which is connected to the same control system as the monitoring device. When the monitoring device detects abnormal dispensing, such as insufficient dripping, the control system can instruct the drive device to adjust parameters in real time, such as increasing the pressure, forming a closed-loop control to ensure stable dispensing.

[0022] Furthermore, the driving device can be a pneumatic actuator, a hydraulic cylinder, an electric screw, or a servo motor. Pneumatic actuators are low-cost and suitable for low-viscosity colloids, while servo motors offer high speed control precision and are suitable for high-viscosity colloids and high-precision dispensing.

[0023] The beneficial effects of this utility model are as follows:

[0024] This device, through the cooperation of the glue storage needle and the mixing and distribution tank, and with the help of the distribution cavity and multiple glue dispensing ports in the mixing and distribution tank, can evenly distribute the glue to the corresponding glue dispensing needles, realizing multi-point synchronous glue dispensing. It completely changes the inefficient mode of traditional single-point dispensing devices that operate point by point, greatly shortens the multi-point dispensing operation cycle, effectively meets the mass production needs of electronic component packaging, component assembly and other scenarios, and improves the overall efficiency of the production line.

[0025] Meanwhile, the monitoring device is aimed at the dispensing nozzle of the dispensing needle and can detect the size and dripping situation of the drop in real time. Once there is no drip or the dripping amount is too small, an alarm is triggered, which can quickly detect problems such as needle blockage and abnormal dispensing amount, avoid the generation of batch defective products, and ensure stable dispensing quality.

[0026] Finally, the multiple dispensing needles have an adjustable distance, which can be flexibly adjusted according to the actual dispensing position requirements. There is no need to replace the entire dispensing device for different working scenarios, which greatly improves the applicability and flexibility of the device, reduces equipment investment costs, and better adapts to the diverse processing needs of industrial multi-point dispensing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a dispensing device capable of dispensing adhesive at multiple points simultaneously, as shown in Embodiment 1.

[0028] Figure 2 This is a schematic diagram of the bottom structure of this type of dispensing device;

[0029] Figure 3 This is a schematic diagram of the structure of a sliding needle in a dispensing device;

[0030] Figure 4 This is a cross-sectional view of the sliding needle in a dispensing device;

[0031] Figure 5 This is a schematic diagram of the regulating device;

[0032] Figure 6 This is a schematic diagram of the structure of the lower surface of the adjusting device;

[0033] In the diagram: 1. Adjustment device, 11. Adjustment groove body, 12. Upper notch, 13. Side plate, 14. Locking groove, 2. Dispensing needle, 21. Needle body, 22. Slider, 23. External thread, 24. Tip, 3. Locking and positioning screw, 4. High-speed camera, 5. Mixing and diverting groove, 51. Dispensing port, 6. Glue storage needle tube. Detailed Implementation

[0034] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0035] Example 1: As Figure 1-6 As shown in the figure, this embodiment provides a dispensing device for two-component epoxy adhesives that can dispense adhesive simultaneously at multiple points, with the specific configuration as follows:

[0036] It includes a high-speed camera 4, a glue storage needle 6, a mixing and diversion tank 5, and multiple glue dispensing needles 2 with adjustable distances.

[0037] The mixing and diversion tank 5 has a diversion cavity inside, multiple glue dispensing ports 51 at the bottom, and a connection structure at the top for the glue storage needle tube 6. The bottom of the glue storage needle tube 6 is connected to the mixing and diversion tank 5. An electric screw is used to control the glue dispensing speed and pressure in the glue storage needle tube 6 and is connected to the same control system as the high-speed camera 4.

[0038] The control system can detect abnormal glue dispensing, such as insufficient dripping volume, by instructing the electric screw to adjust parameters to form a closed-loop control.

[0039] The needle body 21 of the dispensing needle 2 has a slider 22 in the middle. The lower surface of the slider 22 has several threaded holes. The lower end of the needle body 21 is a pointed tip 24 and the upper end is provided with external threads 23. The adjustment device 1 includes an adjustment groove body 11 and a side plate 13. The adjustment groove body 11 has a slide inside. The upper and lower ends have an upper notch 12 and a lower notch, respectively. The lower end has at least two long strip-shaped locking grooves 14 along the length direction. Locking and positioning screws 3 pass through the locking grooves 14.

[0040] The rod of the locking and positioning screw 3 passes through the locking groove 14 and is threadedly connected to the threaded hole on the lower surface of the slider 22. The head diameter of the locking and positioning screw 3 is larger than the width of the locking groove 14. The slider 22 is adapted to be installed in the slide of the adjusting groove body 11 and can move left and right along the slide. The upper end of the needle body 21 passes through the upper notch 12 of the adjusting groove body 11 and the lower end passes through the lower notch of the adjusting groove body 11.

[0041] The lower end of the equal-length rubber tube is provided with an internal thread that matches the external thread 23 on the upper end of the needle body 21. The dispensing port 51 of the mixing and diverting channel 5 is connected to the corresponding dispensing needle 2 through the equal-length rubber tube.

[0042] Operation process:

[0043] S1. Adjusting the spacing: Loosen the locking and positioning screw 3, push the slider 22 to adjust the spacing of each dispensing needle 2, and tighten the locking and positioning screw 3 to complete the fixing.

[0044] S2. Preparation for connection: Connect the glue storage needle tube 6 to the mixing and distribution tank 5, and then connect the glue dispensing port 51 to the needle body 21 with a glue tube of equal length.

[0045] S3. Setting parameters: The control system sets the glue dispensing speed, pressure, and detection threshold of the high-speed camera 4 to ensure that the electric screw and the high-speed camera 4 are connected in the same operating system.

[0046] S4. Start-up operation: Start the device, the electric screw pushes the glue to divert the flow and dispenses the glue synchronously. The high-speed camera 4 monitors in real time, and the system adjusts parameters in case of abnormality.

[0047] S5. Post-maintenance: Turn off the device, remove the needle and clean the residue, and check the condition of the components.

[0048] Example 2: Before batch operation, the data collected by high-speed camera 4 is displayed as images on the operating table. The operator adjusts the electric screw parameters according to the dispensing status to complete the dispensing adjustment. After adjusting to synchronous dispensing from multiple needles, batch dispensing operation is performed. The rest is the same as in Example 1.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dispensing device capable of simultaneous dispensing of adhesive at multiple points, characterized in that: It includes a monitoring device, a glue storage needle, a mixing and diversion tank, and multiple glue dispensing needles with adjustable distances; The bottom of the glue storage needle is connected to the mixing and diversion tank. The mixing and diversion tank is provided with a diversion cavity inside. The bottom of the mixing and diversion tank is provided with multiple glue dispensing ports, and each glue dispensing port is connected to the corresponding glue dispensing needle. The monitoring device is positioned directly above the dispensing nozzle of the dispensing needle to detect the size of the droplet and whether it is dripping. An alarm is triggered when there is no drip or the amount of dripping is too small at this position.

2. The dispensing device capable of simultaneous dispensing of adhesive at multiple points according to claim 1, characterized in that, The monitoring device is a high-speed camera, and the information collected by the high-speed camera is transmitted to an image recognition system for status recognition.

3. The dispensing device capable of simultaneous dispensing of adhesive at multiple points according to claim 1, characterized in that, The monitoring device is a high-speed camera, and the information collected by the high-speed camera is displayed on the screen for real-time observation.

4. A dispensing device capable of simultaneous dispensing of adhesive at multiple points according to claim 2 or 3, characterized in that, The dispensing needle includes a needle body, a slider in the middle of the needle body, the slider being adapted to be installed in the adjustment device and can move left and right along the adjustment device, and the lower surface of the slider is provided with several threaded holes. The adjustment device includes an adjustment groove body, the inside of which is provided with a slide, and the upper and lower ends are respectively provided with an upper notch and a lower notch. The upper end of the needle body passes through the upper notch and the lower end passes through the lower notch. The lower end of the adjusting groove body is provided with at least two elongated locking grooves along its length direction, and the length direction of the locking grooves is consistent with the moving direction of the slider. A locking and positioning screw is inserted into the locking groove. The shank of the locking and positioning screw passes through the locking groove and is threadedly connected to the threaded hole on the lower surface of the slider. The head diameter of the locking and positioning screw is larger than the width of the locking groove.

5. A dispensing device capable of simultaneous dispensing of adhesive at multiple points according to claim 4, characterized in that, The upper end of the needle body is provided with an external thread, and the end of the tube is provided with an internal thread that matches the external thread. The dispensing port is connected to the corresponding dispensing needle through a tube of equal length.

6. A dispensing device capable of simultaneous dispensing of adhesive at multiple points according to claim 4, characterized in that, The lower end of the needle body has a pointed structure.

7. The dispensing device capable of simultaneous dispensing of adhesive at multiple points according to claim 1, characterized in that, The top of the mixing and diversion tank is provided with a connection port adapted to the glue storage needle tube. The lower end of the glue storage needle tube is fixed in the connection port by interference fit or threaded fit, and the glue storage needle tube is connected to the inside of the diversion tank.

8. A dispensing device capable of simultaneous dispensing of adhesive at multiple points according to claim 7, characterized in that, The dispensing speed and pressure of the glue in the glue reservoir are controlled by a controllable drive device, which is connected to the same control system as the monitoring device.

9. A dispensing device capable of simultaneous dispensing of adhesive at multiple points according to claim 8, characterized in that, The driving device is a pneumatic push rod, a hydraulic cylinder, an electric screw, or a servo motor.

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