Dispensing system

Abstract

The dispensing system comprises a glue injection mechanism, a detection mechanism, a viscosity treatment mechanism, a bubble treatment mechanism and an impurity treatment mechanism, and the glue injection mechanism comprises a glue supply tank, a glue supply pipe and a glue injection head which are communicated in sequence; the detection mechanism is arranged on the glue supply pipe and is used for detecting the viscosity, the bubble content and the impurity content of glue; the viscosity treatment mechanism is arranged on the glue supply pipe and is used for increasing or reducing the viscosity of the glue; the bubble treatment mechanism is arranged on the glue supply pipe and is used for removing bubbles in the glue; the impurity treatment mechanism is arranged on the glue supply pipe, and the impurity treatment mechanism is used for removing impurities in the glue, and the glue solution repairing device has the beneficial effects that through the closed-loop design of detection, treatment, backflow and re-detection, the glue solution with unqualified viscosity, bubbles and impurity content is repaired instead of being directly discharged, the utilization rate of the glue solution is increased, and the cost is reduced.

Description

Technical Field

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

[0002] Dispensing systems are core equipment in precision manufacturing. By precisely controlling the extrusion volume, dispensing speed, and dispensing position of the adhesive, they coat functional materials such as glue, solder paste, and conductive adhesive onto designated areas of workpieces, achieving core functions such as bonding, sealing, conductivity, and insulation. Their applications cover multiple high-value-added fields, including electronics manufacturing, automotive parts processing, medical device production, and new energy battery packaging.

[0003] Chinese invention patent CN113457921A discloses a high-efficiency dispensing system, including a valve body. A dispensing tube is connected to the dispensing port of the valve body. The valve body includes a main body, drive chambers located at both ends inside the main body, and a dispensing chamber having an inlet channel, an outlet channel, and a discharge channel. A central through hole is provided between the drive chamber and the dispensing chamber. The left and right ends of a plunger rod located in the central through hole are located in the drive chamber and the dispensing chamber, respectively. A piston disc is fixed to the right end of the plunger rod and is sealed to the inner wall of the drive chamber. The guide sleeve includes a guide part and a protrusion on the side surface of the left end of the guide part. Several small grooves are opened along the axial direction on the inner wall surface of the through hole of the guide part.

[0004] The aforementioned technologies have the following drawbacks: While discharging waste adhesive with unqualified levels of air bubbles and impurities improves adhesive injection efficiency and quality, it also results in significant waste and increases production costs. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a dispensing system that solves the technical problem of low utilization rate of substandard adhesive in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention provides a dispensing system, including a dispensing mechanism, wherein the dispensing mechanism includes a dispensing tank, a dispensing tube, and a dispensing head connected in sequence. The testing mechanism is located on the glue supply tube and is used to test the viscosity, bubble content and impurity content of the glue. A viscosity treatment mechanism is provided on the glue supply tube and is used to increase or decrease the viscosity of the glue. A bubble removal mechanism, disposed on the glue supply pipe, is used to remove air bubbles from the glue; and... An impurity removal mechanism is provided on the glue supply pipe and is used to remove impurities from the glue.

[0007] In some embodiments, the detection mechanism includes a viscosity sensor, a bubble sensor, and a particle sensor. The outlet of the glue supply tank is connected to the inlet of the viscosity sensor, the outlet of the viscosity sensor is connected to the inlet of the bubble sensor, the outlet of the bubble sensor is connected to the inlet of the particle sensor, and the outlet of the particle sensor is connected to the inlet of the glue dispensing head.

[0008] In some embodiments, the viscosity processing mechanism includes a first three-way valve, a liquid storage tank, a heating cylinder, and a cooling cylinder. The outlet of the viscosity sensor is connected to the inlet of the first three-way valve, the first outlet of the first three-way valve is connected to the inlet of the bubble sensor, the second outlet of the first three-way valve is connected to the inlet of the liquid storage tank, the heating cylinder and the cooling cylinder are both sleeved on the outside of the liquid storage tank, and the outlet of the liquid storage tank is connected to the inlet of the viscosity sensor.

[0009] In some embodiments, the viscosity treatment mechanism further includes a motor and a stirring rod, the motor being mounted on a storage tank, the stirring rod being rotatably connected inside the storage tank, and the output shaft of the motor being connected to the stirring rod.

[0010] In some embodiments, the bubble treatment mechanism includes a second three-way valve, a defoaming tank, and a vacuum pump. The outlet of the bubble sensor is connected to the inlet of the second three-way valve, the first outlet of the second three-way valve is connected to the inlet of the particle sensor, the second outlet of the second three-way valve is connected to the inlet of the defoaming tank, the vacuum pump is mounted on the defoaming tank, and the outlet of the defoaming tank is connected to the inlet of the bubble sensor.

[0011] In some embodiments, the bubble treatment mechanism further includes a vibration motor mounted on the defoaming tank.

[0012] In some embodiments, the impurity handling mechanism includes a third three-way valve and a filter, the outlet of the particle sensor is connected to the inlet of the third three-way valve, the first outlet of the third three-way valve is connected to the inlet of the dispensing head, the second outlet of the third three-way valve is connected to the inlet of the filter, and the outlet of the filter is connected to the inlet of the particle sensor.

[0013] In some embodiments, the filter includes a filter cartridge, a coarse filter screen, a fine filter screen, and an ultrafiltration screen. The second outlet of the third three-way valve is connected to the inlet of the filter cartridge, and the outlet of the filter cartridge is connected to the inlet of the particle sensor. The coarse filter screen, the fine filter screen, and the ultrafiltration screen are installed at intervals inside the filter cartridge along its length.

[0014] In some embodiments, the impurity treatment mechanism further includes a cleaning component, which includes a first valve, a second valve, a third valve, a fourth valve, a backwash pump, and a drain pipe. The first valve is located at the inlet of the filter cartridge, the second valve is located at the outlet of the filter cartridge, the outlet of the backwash pump is connected to the inlet of the third valve, the outlet of the third valve is connected to the outlet of the filter cartridge, the inlet of the filter cartridge is connected to the inlet of the fourth valve, and the outlet of the fourth valve is connected to the inlet of the drain pipe.

[0015] In some embodiments, the cleaning assembly further includes an ultrasonic vibrator and an air compressor, the ultrasonic vibrator being mounted on the filter cartridge, and the outlet of the air compressor being connected to the inlet of a third valve.

[0016] Compared with the prior art, the beneficial effects of the present invention include: through a closed-loop design of detection, processing, reflow, and re-detection, adhesives with unqualified viscosity, bubbles, and impurity content are repaired instead of being directly discharged, thereby improving the utilization rate of adhesives and reducing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the dispensing system provided by the present invention; Figure 2 This is a schematic diagram of the overall structure of the viscosity treatment mechanism provided by the present invention; Figure 3 This is a schematic diagram of the overall structure of the impurity treatment mechanism provided by the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Glue dispensing mechanism; 11. Glue supply tank; 12. Glue supply pipe; 13. Glue dispensing head; 2. Detection mechanism; 21. Viscosity sensor; 22. Bubble sensor; 23. Particle sensor; 3. Viscosity processing mechanism; 31. First three-way valve; 32. Liquid storage tank; 33. Heating cylinder; 34. Cooling cylinder; 35. Motor; 36. Stirring rod; 4. Bubble processing mechanism; 41. Second three-way valve; 42. Defoaming tank; 43. Vacuum pump; 44. Vibration motor; 5. Impurity processing mechanism; 51. Third three-way valve; 52. Filter; 521. Filter cartridge; 522. Coarse filter screen; 523. Fine filter screen; 524. Ultrafiltration screen; 53. Cleaning assembly; 531. First valve; 532. Second valve; 533. Third valve; 534. Fourth valve; 535. Backwash pump; 536. Drain pipe; 537. Ultrasonic vibrator; 538. Air compressor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] This invention provides a dispensing system, the structure of which is as follows: Figure 1 - Figure 3 As shown, it includes a dispensing mechanism 1, a detection mechanism 2, a viscosity processing mechanism 3, a bubble processing mechanism 4, and an impurity processing mechanism 5.

[0021] The glue dispensing mechanism 1 includes a glue supply tank 11, a glue supply pipe 12, and a glue dispensing head 13 connected in sequence.

[0022] The detection mechanism 2 is located on the glue supply tube 12, and the detection mechanism 2 is used to detect the viscosity, bubble content and impurity content of the glue.

[0023] The viscosity treatment mechanism 3 is located on the glue supply pipe 12, and the viscosity treatment mechanism 3 is used to increase or decrease the viscosity of the glue.

[0024] The bubble removal mechanism 4 is located on the glue supply pipe 12 and is used to remove air bubbles from the glue.

[0025] The impurity treatment mechanism 5 is located on the glue supply pipe 12, and the impurity treatment mechanism 5 is used to remove impurities in the glue.

[0026] During use, the glue to be dispensed stored in the glue supply tank 11 is stably conveyed to the glue dispensing head 13 through the glue supply pipe 12, forming a continuous glue flow channel. When the glue flows through the detection mechanism 2 on the glue supply pipe 12, the detection mechanism 2 simultaneously starts real-time detection of three indicators: glue viscosity, air bubble content, and impurity content. After the detection is completed, the detection mechanism 2 feeds the data back to the system controller in real time. The controller determines whether the glue is qualified and instructs the subsequent processing mechanisms to start the corresponding processing procedures. According to the judgment result of the detection mechanism 2, the unqualified glue flows through the glue supply pipe 12 through the viscosity treatment mechanism 3, the air bubble treatment mechanism 4, and the impurity treatment mechanism 5 for targeted repair. The glue that has been repaired by each treatment mechanism flows through the detection mechanism 2 again for a second re-inspection. The qualified glue that meets the standards continues to be conveyed along the glue supply pipe 12 to the glue dispensing head 13 to complete the glue dispensing operation.

[0027] In this invention, a closed-loop design of detection, processing, reflow, and re-detection is used to repair adhesives with unqualified viscosity, air bubbles, and impurity content, instead of directly discharging them, thereby improving the utilization rate of the adhesives and reducing costs.

[0028] To test the viscosity, air bubble content, and impurity content of the adhesive, please refer to... Figure 1In a preferred embodiment, the detection mechanism 2 includes a viscosity sensor 21, a bubble sensor 22, and a particle sensor 23. The outlet of the glue supply tank 11 is connected to the inlet of the viscosity sensor 21, the outlet of the viscosity sensor 21 is connected to the inlet of the bubble sensor 22, the outlet of the bubble sensor 22 is connected to the inlet of the particle sensor 23, and the outlet of the particle sensor 23 is connected to the inlet of the glue dispensing head 13.

[0029] In use, the adhesive in the adhesive supply tank 11 is transported along the adhesive supply pipe 12 and first flows into the detection chamber of the viscosity sensor 21. The viscosity sensor 21 has a built-in high-frequency vibration probe. After the probe is immersed in the adhesive, it vibrates at a preset frequency. The sensor accurately calculates the viscosity value of the adhesive by collecting the amplitude change of the probe in real time. If the detected viscosity value exceeds the preset process threshold, the sensor immediately feeds back the abnormal signal to the system controller, and the controller instructs the subsequent viscosity processing mechanism 3 to start the preparation program in advance. If the viscosity value is qualified, the adhesive flows directly out of the outlet of the viscosity sensor 21 and enters the next stage of bubble detection. After viscosity detection, the adhesive continues to flow into the detection channel of the bubble sensor 22. The bubble sensor 22 adopts the laser scattering detection principle. Its emitting end continuously emits laser light of a specific wavelength, which penetrates the flowing adhesive. When there are bubbles in the adhesive, the laser light will be scattered at the bubble interface, and the scattered light is captured by the sensor receiver. By analyzing the intensity, frequency and distribution characteristics of the scattered light, the sensor can accurately identify the particle size and volume ratio of the bubbles. If the bubble content exceeds the standard, the sensor synchronously sends a bubble abnormality signal to the controller, which instructs the subsequent bubble processing mechanism 4 to start a vacuum defoaming program. If the bubble index is qualified, the adhesive continues to flow into the next stage of particle detection. The adhesive that has completed bubble detection finally flows into the detection area of ​​particle sensor 23. Particle sensor 23 adopts the principle of light-shielding particle counting, and the detection channel is designed with a narrow slit structure to ensure that the adhesive flows through in a thin layer at a uniform speed. The sensor's transmitting end and receiving end are located on both sides of the channel, forming a stable laser detection optical path. When impurity particles in the adhesive pass through the optical path, they will block part of the laser, causing the light intensity at the receiving end to decrease in a pulse-like manner. The sensor calculates the particle size and number by capturing the pulse signal of light intensity attenuation. If the impurity content exceeds the standard, the sensor sends an impurity abnormality signal to the controller, which instructs the subsequent impurity processing mechanism 5 to start a multi-stage filtration program. If the particle index is qualified, the adhesive flows directly out of the particle sensor 23 outlet and is transported along the adhesive supply pipe 12 to the dispensing head 13, entering the precision dispensing process.

[0030] To increase or decrease the viscosity of the adhesive, please refer to... Figure 2In a preferred embodiment, the viscosity processing mechanism 3 includes a first three-way valve 31, a liquid storage tank 32, a heating cylinder 33, and a cooling cylinder 34. The outlet of the viscosity sensor 21 is connected to the inlet of the first three-way valve 31, the first outlet of the first three-way valve 31 is connected to the inlet of the bubble sensor 22, and the second outlet of the first three-way valve 31 is connected to the inlet of the liquid storage tank 32. The heating cylinder 33 and the cooling cylinder 34 are both sleeved on the outside of the liquid storage tank 32, and the outlet of the liquid storage tank 32 is connected to the inlet of the viscosity sensor 21.

[0031] During use, the adhesive first flows through the viscosity sensor 21 to complete viscosity detection, determining whether the adhesive viscosity is qualified. A precise diversion command is then sent to the first three-way valve 31. Unqualified adhesive flows into the storage tank 32. Based on the type of exceedance reported by the viscosity sensor 21, the system controller instructs the heating cylinder 33 or cooling cylinder 34 to activate the corresponding temperature control program. This external temperature control achieves precise viscosity adjustment. During adjustment, the auxiliary viscosity sensor 21 built into the storage tank 32 collects adhesive viscosity data in real time and dynamically feeds it back to the controller, forming a closed-loop temperature control system to ensure accurate viscosity restoration. When the auxiliary viscosity sensor 21 detects that the adhesive viscosity in the storage tank 32 has returned to the qualified range, the controller instructs the outlet valve of the storage tank 32 to open. Qualified adhesive is then transported along the return pipeline to the inlet of the viscosity sensor 21, re-entering the viscosity detection stage for re-inspection. If the re-inspection is qualified, the first three-way valve 31 switches to the normal passage, and the adhesive flows into the bubble sensor 22 to enter the subsequent testing process. If the re-inspection is still not qualified, the adhesive will be introduced into the storage tank 32 again through the first three-way valve 31.

[0032] To improve temperature control uniformity, please refer to... Figure 2 In a preferred embodiment, the viscosity processing mechanism 3 further includes a motor 35 and a stirring rod 36. The motor 35 is mounted on the liquid storage tank 32, and the stirring rod 36 is rotatably connected inside the liquid storage tank 32. The output shaft of the motor 35 is connected to the stirring rod 36.

[0033] During use, the external temperature control of the heating cylinder 33 and the cooling cylinder 34 can easily cause the adhesive liquid in the storage tank 32 to have a layering problem where the outer layer temperature meets the standard and the internal temperature lags behind. The motor 35 drives the stirring rod 36 to rotate at a constant speed, which can drive the adhesive liquid in the tank to form a top-down circulating flow field, so that the heat or cold energy can be quickly transferred to the entire area of ​​the adhesive liquid and eliminate the temperature gradient.

[0034] To defoam the adhesive, please refer to... Figure 1In a preferred embodiment, the bubble treatment mechanism 4 includes a second three-way valve 41, a defoaming tank 42, and a vacuum pump 43. The outlet of the bubble sensor 22 is connected to the inlet of the second three-way valve 41, the first outlet of the second three-way valve 41 is connected to the inlet of the particle sensor 23, the second outlet of the second three-way valve 41 is connected to the inlet of the defoaming tank 42, the vacuum pump 43 is mounted on the defoaming tank 42, and the outlet of the defoaming tank 42 is connected to the inlet of the bubble sensor 22.

[0035] During use, after viscosity testing, the adhesive flows into the bubble sensor 22 to detect bubble content. If the bubble content is within acceptable limits, the adhesive flows directly to the next stage particle sensor 23. If the bubble content exceeds the limit, the bubble-containing adhesive is precisely introduced into the defoaming tank 42. After the bubble-containing adhesive enters the defoaming tank 42, the system controller simultaneously starts the vacuum pump 43 and the auxiliary device built into the defoaming tank 42 to initiate the vacuum defoaming process. After the vacuum pump 43 starts, it quickly removes the air from the defoaming tank 42, creating a negative pressure environment inside the tank. Under negative pressure, the tiny bubbles dissolved in the adhesive expand rapidly, and the small bubbles converge and merge to form large bubbles, which are easy to float quickly. The auxiliary bubble sensor 22 in the defoaming tank 42 monitors the bubble content of the adhesive in real time and dynamically feeds back the data to the controller. When the detected bubble content drops below the preset threshold, the controller instructs the vacuum pump 43 and the ultrasonic device to stop working, completing the defoaming operation. The controller instructs the outlet valve of the defoaming tank 42 to open, and the qualified adhesive is transported along the return pipeline to the inlet of the bubble sensor 22, re-entering the bubble detection stage for a second inspection.

[0036] To improve the defoaming effect, please refer to... Figure 1 In a preferred embodiment, the bubble treatment mechanism 4 further includes a vibration motor 44, which is mounted on the defoaming tank 42.

[0037] When in use, mechanical vibration and vacuum negative pressure work synergistically. Vibration accelerates the movement and aggregation of bubbles, while negative pressure accelerates the rising and bursting of bubbles, greatly improving the repair efficiency of substandard adhesive.

[0038] To remove impurities from the adhesive, please refer to... Figure 3 In a preferred embodiment, the impurity treatment mechanism 5 includes a third three-way valve 51 and a filter 52. The outlet of the particle sensor 23 is connected to the inlet of the third three-way valve 51, the first outlet of the third three-way valve 51 is connected to the inlet of the dispensing head 13, the second outlet of the third three-way valve 51 is connected to the inlet of the filter 52, and the outlet of the filter 52 is connected to the inlet of the particle sensor 23.

[0039] During use, after viscosity and bubble detection, the adhesive flows into particle sensor 23 to complete impurity content detection. If the impurity content is qualified, the adhesive flows directly into dispensing head 13 and enters the dispensing process. If the impurity content exceeds the standard, the impure adhesive is accurately introduced into filter 52. After the impure adhesive enters filter 52, the filtration program is started to intercept the impurities. When filter 52 has completed the removal of impurities, the controller instructs the outlet valve of filter 52 to open. The impurity-removed adhesive is then transported along the return pipeline to the inlet of particle sensor 23 and re-enters the impurity content detection stage for secondary re-inspection.

[0040] To achieve graded filtration of impurities of different particle sizes, please refer to... Figure 3 In a preferred embodiment, the filter 52 includes a filter cartridge 521, a coarse filter screen 522, a fine filter screen 523, and an ultrafiltration screen 524. The second outlet of the third three-way valve 51 is connected to the inlet of the filter cartridge 521, and the outlet of the filter cartridge 521 is connected to the inlet of the particle sensor 23. The coarse filter screen 522, the fine filter screen 523, and the ultrafiltration screen 524 are installed at intervals within the filter cartridge 521 along its length.

[0041] In use, the coarse filter 522, fine filter 523, and ultrafilter 524 are arranged sequentially along the length of the filter cartridge 521, forming a gradient filtration system that first intercepts large particles, then captures small particles, and finally filters microparticles. This allows for the interception of impurities of different particle sizes at each stage. The coarse filter 522 quickly traps large particles such as metal shavings and adhesive clumps, preventing them from scratching the subsequent precision filter. The fine filter 523 intercepts medium-sized impurities such as packing particles and pipe wear debris. The ultrafilter 524 captures colloidal impurities and fine dust that can cause dispensing defects. Compared to single-filter filtration, the overall impurity removal rate is improved.

[0042] To clean filter 52, please refer to... Figure 3 In a preferred embodiment, the impurity treatment mechanism 5 further includes a cleaning component 53, which includes a first valve 531, a second valve 532, a third valve 533, a fourth valve 534, a backwash pump 535, and a drain pipe 536. The first valve 531 is located at the inlet of the filter cartridge 521, the second valve 532 is located at the outlet of the filter cartridge 521, the outlet of the backwash pump 535 is connected to the inlet of the third valve 533, the outlet of the third valve 533 is connected to the outlet of the filter cartridge 521, the inlet of the filter cartridge 521 is connected to the inlet of the fourth valve 534, and the outlet of the fourth valve 534 is connected to the inlet of the drain pipe 536.

[0043] During operation, valves 531 and 532 are closed, disconnecting the filter cartridge 521 from the main dispensing system. Simultaneously, valves 533 and 534 are opened to establish backwashing and drainage pathways. The backwash pump 535 is started, drawing cleaning fluid which is then injected in reverse through the opened valve 533 from the outlet of the filter cartridge 521. The high-pressure cleaning fluid flows back into the filter cartridge 521, sequentially impacting the ultrafiltration screen 524, fine filter screen 523, and coarse filter screen 522, using fluid impact to remove impurities adhering to the filter screen surface and pores. The waste liquid containing impurities generated during backwashing flows under pressure through the inlet of the filter cartridge 521 into the opened valve 534, and is finally discharged through the drain pipe 536. After drainage is complete, the controller commands the backwash pump 535 to stop, closes valves 533 and 534, and reopens valves 531 and 532.

[0044] To further improve the cleaning effect, please refer to Figure 3 In a preferred embodiment, the cleaning assembly 53 further includes an ultrasonic vibrator 537 and an air compressor 538. The ultrasonic vibrator 537 is mounted on the filter cartridge 521, and the outlet of the air compressor 538 is connected to the inlet of the third valve 533.

[0045] During use, the air compressor 538 introduces a high-pressure pulsed airflow into the filter cartridge 521. The airflow penetrates the micropores of the filter screen, creating a localized air explosion effect that blows away stubborn impurities within the micropores. The ultrasonic vibrator 537 generates high-frequency vibrations, which, through cavitation, destroy the adhesion between impurities and filter screen fibers, while simultaneously breaking up any remaining adhesive residue. The high-pressure airflow, ultrasonic vibration, and reverse liquid washing work simultaneously to achieve multiple cleaning processes: air explosion peeling, ultrasonic breaking of adhesive residue, and liquid rinsing.

[0046] To better understand this invention, the following is combined with... Figure 1 - Figure 3 The working principle of a dispensing system according to the present invention is described in detail below: The adhesive to be dispensed, stored in the adhesive supply tank 11, is stably conveyed to the dispensing head 13 through the adhesive supply pipe 12, forming a continuous adhesive flow channel. When the adhesive flows through the detection mechanism 2 on the adhesive supply pipe 12, the detection mechanism 2 simultaneously starts real-time detection of three indicators: adhesive viscosity, air bubble content, and impurity content. After the detection is completed, the detection mechanism 2 feeds the data back to the system controller in real time. The controller determines whether the adhesive is qualified and instructs the subsequent processing mechanisms to start the corresponding processing procedures. According to the determination result of the detection mechanism 2, the unqualified adhesive flows through the adhesive supply pipe 12 through the viscosity treatment mechanism 3, the air bubble treatment mechanism 4, and the impurity treatment mechanism 5 for targeted repair. The adhesive repaired by each processing mechanism flows through the detection mechanism 2 again for a second re-inspection. The qualified adhesive that meets the standards continues to be conveyed along the adhesive supply pipe 12 to the dispensing head 13 to complete the dispensing operation.

[0047] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A dispensing system, characterized in that, include: The glue dispensing mechanism includes a glue supply tank, a glue supply pipe, and a glue dispensing head connected in sequence. The testing mechanism is located on the glue supply tube and is used to test the viscosity, bubble content and impurity content of the glue. A viscosity treatment mechanism is provided on the glue supply tube and is used to increase or decrease the viscosity of the glue. A bubble removal mechanism, disposed on the glue supply pipe, is used to remove air bubbles from the glue; and... An impurity removal mechanism is provided on the glue supply pipe and is used to remove impurities from the glue.

2. The dispensing system according to claim 1, characterized in that, The detection mechanism includes a viscosity sensor, a bubble sensor, and a particle sensor. The outlet of the glue supply tank is connected to the inlet of the viscosity sensor, the outlet of the viscosity sensor is connected to the inlet of the bubble sensor, the outlet of the bubble sensor is connected to the inlet of the particle sensor, and the outlet of the particle sensor is connected to the inlet of the glue dispensing head.

3. The dispensing system according to claim 2, characterized in that, The viscosity processing mechanism includes a first three-way valve, a liquid storage tank, a heating cylinder, and a cooling cylinder. The outlet of the viscosity sensor is connected to the inlet of the first three-way valve. The first outlet of the first three-way valve is connected to the inlet of the bubble sensor. The second outlet of the first three-way valve is connected to the inlet of the liquid storage tank. The heating cylinder and the cooling cylinder are both sleeved on the outside of the liquid storage tank. The outlet of the liquid storage tank is connected to the inlet of the viscosity sensor.

4. The dispensing system according to claim 3, characterized in that, The viscosity treatment mechanism also includes a motor and a stirring rod. The motor is mounted on the liquid storage tank, the stirring rod is rotatably connected inside the liquid storage tank, and the output shaft of the motor is connected to the stirring rod.

5. The dispensing system according to claim 2, characterized in that, The bubble treatment mechanism includes a second three-way valve, a defoaming tank, and a vacuum pump. The outlet of the bubble sensor is connected to the inlet of the second three-way valve, the first outlet of the second three-way valve is connected to the inlet of the particle sensor, the second outlet of the second three-way valve is connected to the inlet of the defoaming tank, the vacuum pump is installed on the defoaming tank, and the outlet of the defoaming tank is connected to the inlet of the bubble sensor.

6. The dispensing system according to claim 5, characterized in that, The bubble treatment mechanism also includes a vibration motor, which is mounted on the defoaming tank.

7. The dispensing system according to claim 2, characterized in that, The impurity handling mechanism includes a third three-way valve and a filter. The outlet of the particle sensor is connected to the inlet of the third three-way valve. The first outlet of the third three-way valve is connected to the inlet of the dispensing head. The second outlet of the third three-way valve is connected to the inlet of the filter. The outlet of the filter is connected to the inlet of the particle sensor.

8. The dispensing system according to claim 7, characterized in that, The filter includes a filter cartridge, a coarse filter screen, a fine filter screen, and an ultrafiltration screen. The second outlet of the third three-way valve is connected to the inlet of the filter cartridge, and the outlet of the filter cartridge is connected to the inlet of the particle sensor. The coarse filter screen, the fine filter screen, and the ultrafiltration screen are installed at intervals inside the filter cartridge along its length.

9. The dispensing system according to claim 8, characterized in that, The impurity treatment mechanism further includes a cleaning component, which includes a first valve, a second valve, a third valve, a fourth valve, a backwash pump, and a drain pipe. The first valve is located at the inlet of the filter cartridge, the second valve is located at the outlet of the filter cartridge, the outlet of the backwash pump is connected to the inlet of the third valve, the outlet of the third valve is connected to the outlet of the filter cartridge, the inlet of the filter cartridge is connected to the inlet of the fourth valve, and the outlet of the fourth valve is connected to the inlet of the drain pipe.

10. The dispensing system according to claim 9, characterized in that, The cleaning assembly also includes an ultrasonic vibrator and an air compressor. The ultrasonic vibrator is mounted on the filter cartridge, and the outlet of the air compressor is connected to the inlet of the third valve.

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