Piezoelectric valve wiping mechanism

Abstract

The utility model discloses a piezoelectric valve glue wiping mechanism belongs to point gum machine technical field. Piezoelectric valve glue wiping mechanism still includes: guide material spare, spring subassembly and gyro wheel, guide material spare, spring subassembly and sensor install in the shell, gyro wheel installs in spring subassembly, and guide material spare and gyro wheel set up between the material winding wheel and the glue wiping block, and guide material spare sets up the top of gyro wheel, and driving part is worm wheel worm motor, and material collecting wheel installs in worm wheel worm motor, and the top of glue wiping block is equipped with recessed portion, and the glue wiping cloth extends to material collecting wheel from the top of guide material spare, the below of gyro wheel and the top of recessed portion of glue wiping block in proper order from material winding wheel. The utility model sets up recessed portion at glue wiping block can when needing wiping of piezoelectric valve, make the glue outlet of piezoelectric valve press the glue wiping cloth and enter recessed portion, and the deformation of glue wiping cloth in this process can adapt to the different shape of the glue outlet of different piezoelectric valve.

Description

Technical Field

[0001] This utility model belongs to the field of dispensing machine technology, specifically a piezoelectric valve dispensing mechanism. Background Technology

[0002] In industries such as electronics manufacturing and precision assembly, piezoelectric valves are widely used as high-precision dispensing devices. Piezoelectric valves control the spraying of adhesive through the deformation of piezoelectric ceramics, offering advantages such as fast response, high dispensing accuracy, and the ability to perform micro-dispensing. However, in practical use, adhesive residue can easily remain at the dispensing nozzle of the piezoelectric valve. Over time, this residue will gradually solidify, affecting not only the accuracy and stability of dispensing but also potentially causing nozzle blockage and reducing the lifespan of the piezoelectric valve.

[0003] Currently, common methods for cleaning the dispensing nozzle of piezoelectric valves include manual wiping and simple mechanical wiping. Manual wiping is inefficient and prone to inconsistent cleaning results due to variations in human operation, while also posing a risk of damage to the piezoelectric valve. Simple mechanical wiping typically uses fixed wiping components, which cannot adaptively adjust to different shapes of the piezoelectric valve dispensing nozzle, resulting in limited cleaning effectiveness and failing to meet the requirements of high-precision dispensing.

[0004] Therefore, developing an efficient, reliable, and self-cleaning piezoelectric valve adhesive wiping mechanism is of great practical significance. Utility Model Content

[0005] Purpose of the utility model: To provide a piezoelectric valve adhesive wiping mechanism, which can adapt to different shapes of the adhesive outlet of the piezoelectric valve through the cooperation of the groove of the adhesive wiping block and the adhesive wiping cloth.

[0006] The technical solution of this utility model is as follows: a piezoelectric valve adhesive application mechanism, comprising: a mounting bracket, a housing, an adhesive application block, a roll reel, a take-up reel, an adhesive application cloth, a tension controller, and an active component; the housing is mounted on a dispensing machine via the mounting bracket, and the dispensing machine includes a piezoelectric valve.

[0007] The piezoelectric valve adhesive wiping mechanism further includes: a guide component, a spring assembly, and a roller. The guide component, spring assembly, and sensor are mounted on the housing. The roller is mounted on the spring assembly. The guide component and roller are disposed between the roll and the adhesive wiping block. The guide component is disposed above the roller.

[0008] The driving component is a worm gear motor, and the take-up wheel is mounted on the worm gear motor.

[0009] The wiping block has a groove on its upper part, and the wiping cloth extends from the roll wheel, passing sequentially above the guide, below the roller, and above the groove of the wiping block to the take-up wheel.

[0010] In a further embodiment, the piezoelectric valve adhesive application mechanism further includes a detection component, which cooperates with a roller. The detection component is used to detect the rotation angle of the roller. By detecting the rotation angle of the roller, the detection component can detect the amount of adhesive cloth used. Through the cooperation of the tension controller, guide component, spring assembly, roller and detection component, the cooperation strength between the adhesive cloth and the roller is improved, the step loss rate of the roller and detection component cooperation detection is reduced, and the accuracy of the sensor in detecting the amount of adhesive cloth used is improved. It can more accurately realize the functions of quantitative application of adhesive cloth and detection of the presence or absence of adhesive cloth, and improve the accuracy of adhesive cloth application when applying adhesive at the piezoelectric valve outlet.

[0011] In a further embodiment, the detection component includes a flywheel and a sensor.

[0012] The flywheel is connected to a roller, which drives the flywheel to rotate. The position of the flywheel is coordinated with the sensor.

[0013] In a further embodiment, the piezoelectric valve adhesive wiping mechanism further includes an adhesive receiving cup. The housing is provided with an installation arm, and the adhesive receiving cup is installed on the installation arm. The adhesive receiving cup is used to receive the adhesive liquid discharged before wiping. The detachable adhesive receiving cup facilitates cleaning.

[0014] In a further embodiment, the adhesive cup is detachably mounted on the mounting arm.

[0015] In a further embodiment, the adhesive cup includes a main body and a flange structure disposed on the main body.

[0016] The mounting arm is provided with a mounting hole, and the flange structure is placed on the mounting arm so that the main body passes through the mounting hole.

[0017] In a further embodiment, the mounting bracket is installed on the dispensing machine via screws and U-holes. The mounting bracket provides support for the overall structure, and the U-hole design allows for fine-tuning of the installation position.

[0018] The beneficial effects of this utility model are: the grooved part of the adhesive wiping block can make the adhesive outlet of the piezoelectric valve press the adhesive wiping cloth into the grooved part when the piezoelectric valve needs to wipe adhesive. During this process, the deformation of the adhesive wiping cloth can adapt to the different shapes of the adhesive outlets of different piezoelectric valves.

[0019] The cooperation of the guide component, spring assembly, roller and worm gear motor ensures the adhesion strength between the square-shaped wiping cloth on the groove of the wiping block and the piezoelectric valve, thus improving the stability of the cleaning effect.

[0020] Furthermore, while the worm gear motor drives the take-up wheel to rotate, it also prevents the wiping cloth near the worm gear motor from moving towards the piezoelectric valve's outlet when it is deformed as it presses against the outlet of the piezoelectric valve. This ensures unidirectional movement of the wiping cloth, guaranteeing that only new, unused wiping cloth deforms and enters the groove. It also prevents residual adhesive on used wiping cloth from sticking back to the outlet of the piezoelectric valve, further improving the stability of the cleaning effect. Attached Figure Description

[0021] Figure 1 This is an isometric structural diagram of the adhesive application mechanism of this utility model.

[0022] Figure 2 This is a front view structural diagram of the adhesive application mechanism of this utility model.

[0023] Figure 3 This is a rear view schematic diagram of the adhesive application mechanism of this utility model with its hidden outer shell.

[0024] Figure 4 This is a bottom view of the adhesive application mechanism of this utility model.

[0025] Figure 5 This is a right-side structural schematic diagram of the adhesive application mechanism of this utility model.

[0026] The attached figures are labeled as follows: 1. Housing; 2. Glue-wiping block; 3. Roller; 4. Take-up roller; 5. Glue-wiping cloth; 6. Guide component; 7. Spring assembly; 71. Spring; 8. Roller; 9. Glue-receiving cup; 10. Tension controller; 11. Active component; 12. Detection component; 12. Flywheel; 121. Sensor; 122. Mounting bracket; 13. Detailed Implementation

[0027] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0028] This application discloses a piezoelectric valve adhesive wiping mechanism, which can adapt to different shapes of the adhesive outlet of the piezoelectric valve through the cooperation of the groove of the adhesive wiping block and the adhesive wiping cloth.

[0029] The dispensing machine includes a piezoelectric valve, at least one of which is a piezoelectric valve and a glue-wiping mechanism. The moving module, the piezoelectric valve, and the glue-wiping mechanism can all be connected to the control device such as the PLC of the dispensing machine. The control device can control the relative movement of the piezoelectric valve and the glue-wiping mechanism so that the piezoelectric valve cooperates with the glue-receiving cup 9 or the glue-wiping cloth 5 of the glue-wiping mechanism.

[0030] The piezoelectric valve adhesive wiping mechanism includes: mounting bracket 13, housing 1, adhesive wiping block 2, roll roller 3, take-up roller 4, adhesive wiping cloth 5, tension controller 10, active component 11, guide component 6, spring assembly 7, roller 8, detection component 12, and adhesive receiving cup 9.

[0031] The housing 1 is mounted on the dispensing machine via a mounting bracket 13. In a preferred embodiment, the mounting bracket 13 is mounted on the dispensing machine via screws and U-holes.

[0032] The guide component 6, spring assembly 7, and sensor 122 are mounted on the housing 1. The roller 8 is mounted on the spring assembly 7. The guide component 6 and roller 8 are positioned between the winding roller 3 and the adhesive wiping block 2. The guide component 6 is positioned above the roller 8. Figure 1 and 2 The spring assembly 7 shown includes a bracket, a guide rod, a mounting base, and a spring 71. The roller 8 and the guide rod are mounted on the mounting base. The guide rod passes through the bracket, which is mounted on the housing 1. Figure 2 The spring 71 shown is sleeved on the guide rod. The spring 71 is located below the bracket and above the base of the guide rod, as shown. Figure 1 The spring 71 shown is used to apply a downward force to the roller 8, wherein the outer casing 1 is provided with a vertical U-hole, and the roller 8 passes through the U-hole and is connected to the flywheel 121.

[0033] The driving component 11 is a worm gear motor, and the take-up wheel 4 is mounted on the worm gear motor.

[0034] The wiping block 2 has a groove on its upper part, and the wiping cloth 5 extends from the roll wheel 3, passing in sequence above the guide member 6, below the roller 8, and above the groove of the wiping block 2 to the take-up wheel 4.

[0035] The detection component 12 cooperates with the roller 8, and the detection component 12 is used to detect the rotation angle of the roller 8.

[0036] The outer casing 1 is provided with an installation arm, and the glue cup 9 is installed on the installation arm. The glue cup 9 is used to collect the glue liquid discharged before applying the glue.

[0037] In this embodiment, the detection component 12 includes a flywheel 121 and a sensor 122. The flywheel 121 is connected to a roller 8, and the roller 8 is used to drive the flywheel 121 to rotate. The position of the flywheel 121 is matched with the sensor 122. In other embodiments, the detection component 12 can detect the length of the wiping cloth 5 used, and is not limited thereto.

[0038] In this embodiment, the glue cup 9 is detachably mounted on the mounting arm. In a preferred embodiment, the glue cup 9 includes a main body and a flange structure disposed on the main body. The mounting arm is provided with a mounting hole, and the flange structure is placed on the mounting arm so that the main body passes through the mounting hole. In other embodiments, the glue cup 9 can be detachably mounted on the mounting arm by means of screws or other structures, and is not limited thereto.

[0039] When it is necessary to wipe the piezoelectric valve with adhesive, first move the piezoelectric valve above the adhesive receiving cup 9 to spray out a certain amount of adhesive. Then move the piezoelectric valve above the groove of the wiping block 2 and press it down to contact the wiping cloth 5. This causes the adhesive outlet of the piezoelectric valve to press the wiping cloth 5 into the groove of the wiping block 2. During this process, the wiping cloth 5 can deform to adapt to the different shapes of the adhesive outlets of different piezoelectric valves. Then, the take-up wheel 4 drives the wiping cloth 5 to move and wipe the piezoelectric valve with adhesive.

[0040] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A piezoelectric valve adhesive application mechanism, comprising: Mounting bracket, housing, wiping block, reel, take-up reel, wiping cloth, tension controller, and active component; The housing is mounted on the dispensing machine via a mounting bracket, and the dispensing machine includes a piezoelectric valve. The piezoelectric valve adhesive wiping mechanism is characterized in that it further includes: a guide component, a spring assembly, and a roller, wherein the guide component, the spring assembly, and the sensor are mounted on the housing, the roller is mounted on the spring assembly, the guide component and the roller are disposed between the roll roller and the adhesive wiping block, and the guide component is disposed above the roller; The driving component is a worm gear motor, and the take-up wheel is mounted on the worm gear motor; The wiping block has a groove on its upper part, and the wiping cloth extends from the roll wheel, passing sequentially above the guide, below the roller, and above the groove of the wiping block to the take-up wheel.

2. The piezoelectric valve adhesive application mechanism according to claim 1, characterized in that, Also includes: A detection component, which cooperates with a roller, is used to detect the rotation angle of the roller.

3. The piezoelectric valve adhesive application mechanism according to claim 2, characterized in that, The detection components include: a flywheel and a sensor; The flywheel is connected to a roller, which drives the flywheel to rotate. The position of the flywheel is coordinated with the sensor.

4. The piezoelectric valve adhesive application mechanism according to claim 1, characterized in that, Also includes: The adhesive receiving cup is provided with an installation arm on the outer shell. The adhesive receiving cup is installed on the installation arm and is used to receive the adhesive liquid discharged before applying the adhesive.

5. The piezoelectric valve adhesive application mechanism according to claim 4, characterized in that, The adhesive cup is detachably mounted on the mounting arm.

6. The piezoelectric valve adhesive application mechanism according to claim 4 or 5, characterized in that, The adhesive cup includes a main body and a flange structure disposed on the main body; The mounting arm is provided with a mounting hole, and the flange structure is placed on the mounting arm so that the main body passes through the mounting hole.

7. The piezoelectric valve adhesive application mechanism according to claim 1, characterized in that, The mounting bracket is installed on the dispensing machine via screws and U-holes.

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