Dispensing equipment
By introducing piezoelectric valve components and closed-loop control systems into the dispensing equipment, the problem of unstable dispensing volume in traditional dispensing equipment has been solved, achieving precise control of dispensing volume and improving production efficiency.
Patent Information
- Application Number
- CN202423220816.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing technologies, traditional dispensing equipment is affected by factors such as equipment precision, working environment, and adhesive characteristics when controlling the dispensing amount, resulting in deviations in dispensing amount, which affects product quality and production efficiency.
The dispensing equipment is equipped with a piezoelectric valve assembly, including the piezoelectric valve body, heating structure and nozzle. The heating structure heats the adhesive in the retention tank. Combined with the closed-loop control of the motion control card and industrial computer, the output force can be precisely adjusted and monitored in real time to ensure the accuracy and stability of dispensing.
It enables precise control of the glue dispensing amount, avoids glue from sticking to the inner cavity wall, improves the accuracy and stability of dispensing, and enhances production efficiency.
Smart Images
Figure CN223847321U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dispensing, and in particular relates to a dispensing device. Background Technology
[0002] In modern industrial production, dispensing technology is widely used in electronics, semiconductors, automobiles, medical devices, and other fields. However, traditional dispensing equipment is often affected by various factors when controlling the dispensing volume, such as equipment precision, changes in the working environment, and the characteristics of the adhesive, leading to deviations in dispensing volume and affecting product quality and production efficiency. To improve the precision and stability of dispensing... Utility Model Content
[0003] This invention provides a dispensing device that solves the above-mentioned problems.
[0004] To solve the above problems, the present invention provides the following technical solution: A dispensing device, comprising a piezoelectric valve assembly, the piezoelectric valve assembly including a piezoelectric valve body, a heating structure, and a nozzle; the bottom of the piezoelectric valve body is fixed to the top of the heating structure, and the bottom of the heating structure is threadedly fixed to the nozzle; the heating structure has a heating shell, the inner cavity of the heating shell gradually decreasing in size from top to bottom, a retention groove is provided on the inner edge of the inner cavity, and a heating unit is provided in the retention groove; the retention groove is an arc-shaped structure; one side of the retention groove is connected to the inner edge of the inner cavity, and the opposite side of the retention groove extends towards the center of the inner cavity; the recessed portion of the retention groove is on the same vertical plane as the inner edge of the inner cavity.
[0005] Preferably, the heating unit comprises a heating wire and a power supply; the power supply is installed inside the heating housing and is connected to the heating wire via a wire.
[0006] Preferably, the piezoelectric valve body is further provided with an air inlet, an adhesive inlet, and an exhaust port. The air inlet is connected to an air source pipeline, and the adhesive inlet is connected to an adhesive retention pipe.
[0007] Preferably, the system further includes a piezoelectric valve controller, a motion control board, and an industrial computer; the piezoelectric valve body is electrically connected to the piezoelectric valve controller via a connecting cable; the output interface of the piezoelectric valve controller is electrically connected to the input interface of the motion control board; the external trigger interface of the piezoelectric valve controller is electrically connected to the output interface of the motion control board; the motion control board is installed in the PCI slot of the industrial computer, and the industrial computer is electrically connected to the piezoelectric valve controller.
[0008] Preferably, the piezoelectric valve body is a piezoelectric jet glue dispensing valve of AXXON APJ1500S type; the piezoelectric jet glue dispensing valve has a piezoelectric jet glue dispensing valve with a closed-loop adjustment function, and through closed-loop adjustment of the output value monitored in real time, the output force is accurately adjusted, and the valve body realizes higher precision glue dispensing.
[0009] Preferably, the motion control board card is a GTS-800-PG-PCI-G board card of AXXON, receives motion control signals and parameters, performs corresponding operation, and transmits to the piezoelectric valve controller.
[0010] Preferably, the industrial computer sends an opening valve triggering instruction, the motion control card converts and records the pulse signal, and the motion control card sends a corresponding pulse signal to the piezoelectric valve controller to make the piezoelectric valve assembly dispense glue.
[0011] The beneficial effects of the prior art are that, by adopting the above scheme, the utility model first controls the heating structure of the valve unit, so that the glue liquid remaining on the heating inner cavity wall flows into the retention groove and is heated, thereby eliminating the phenomenon of large head glue in the next glue spraying; secondly, the motion control card has a high-efficiency signal acquisition function, and the number of pulses generated by the corresponding input interface is recorded in real time and accurately. Therefore, the motion control card high-speed general output interface corresponding to the piezoelectric valve controller must be closely connected to the input interface with strong acquisition function of the motion control card; the acquisition card can configure idle general input or limit input as a pulse acquisition interface, thereby meeting the monitoring requirements in different scenes. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0013] Fig. 1 It is a structure schematic view of the piezoelectric valve assembly of the utility model;
[0014] Fig. 2 It is a heating structure schematic view of the utility model;
[0015] Fig. 3 It is a heating structure cross-sectional view of the utility model;
[0016] According to the above legend: piezoelectric valve body-1; heating structure-2; nozzle-3; air inlet-4; air outlet-5; glue inlet-6; inner cavity-21; retention groove-22. DETAILED DESCRIPTION
[0017] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described in the specification. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0018] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "fixed", "integrally formed", "left", "right" and similar expressions used in the specification are only for the purpose of illustration, and in the drawings, similar elements are denoted by the same reference numerals.
[0019] Unless otherwise defined, all technical and scientific terms used in the specification are the same as those commonly understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application.
[0020] As shown in FIG. 1, one embodiment of the present application is a dispensing equipment provided with a piezoelectric valve assembly 1, which comprises a piezoelectric valve body 1, a heating structure 2 and a spray head 3; the bottom of the piezoelectric valve body 1 is fixed to the top of the heating structure 2, and the bottom of the heating structure 2 is threadedly fixed to the spray head 3; the heating structure 2 is provided with a heating shell, the inner cavity 21 of which gradually decreases from top to bottom, a retention groove 22 is arranged on the inner edge of the inner cavity 21, and a heating unit is arranged in the retention groove 22; the retention groove 22 is of arc-shaped structure; one side of the retention groove 22 is combined with the inner edge of the inner cavity 21, and the opposite side of the retention groove 22 extends to the center position of the inner cavity 21; the recessed part of the retention groove 22 and the inner edge of the inner cavity 21 are in the same vertical plane. Figs. 1-3 The heating unit is a heating wire and a power supply; the power supply is installed inside the heating shell, and the power supply is connected to the heating wire through a wire.
[0021] The piezoelectric valve body 1 is further provided with an air inlet 4, a glue inlet 6 and an air outlet 5; the air inlet 4 is connected to an air source pipeline, and the glue inlet 6 is connected to a glue reservoir pipeline.
[0022]
[0023] It should be noted that when the glue is sprayed out by the nozzle 3 from the glue inlet 4 through the heating structure 2, the glue on the wall of the inner cavity 21 of the heating shell flows into the retention groove 22, the heating wire of the retention groove 22 heats the glue in the retention groove 22, and the glue cannot form a solid glue phenomenon without cooling; when the next time the glue is sprayed, the glue in the retention groove 22 also flows into the nozzle and is sprayed out, and the glue on the wall of the inner cavity 21 again flows into the retention groove 22; thus, a closed loop is formed.
[0024] The glue retainer is a storage body for storing glue solution, and the glue is introduced into the glue inlet through the pipeline through the glue retainer.
[0025] In embodiment 2, the dispensing equipment is further provided with a piezoelectric valve controller, a motion control card and an industrial computer; the piezoelectric valve body is electrically connected to the piezoelectric valve controller through a connecting line; the piezoelectric valve controller is electrically connected to the motion control card; the motion control card is installed on the PCI slot of the industrial computer; and the industrial computer is electrically connected to the piezoelectric valve controller.
[0026] The piezoelectric valve body is a piezoelectric jet dispensing valve with the model of AXXON APJ1500S; the piezoelectric jet dispensing valve has a closed-loop adjustment function, and through closed-loop adjustment of the output value monitored in real time, the output force is accurately adjusted, so that the valve body realizes higher precision dispensing.
[0027] The motion control card has the model of GTS-800-PG-PCI-G card of AXXON, receives motion control signals and parameters, makes corresponding calculations, and transmits to the piezoelectric valve controller.
[0028] The industrial computer sends an opening valve command, and the motion control card converts and records the pulse signal; the motion control card sends a corresponding pulse signal to the piezoelectric valve controller to make the piezoelectric valve assembly dispense glue.
[0029] It should be noted that the PC industrial computer sends an opening valve command, the motion control card converts the signal into a pulse signal and outputs it to the piezoelectric valve controller (the motion control card records the number of pulse signals triggered and output), and the piezoelectric valve controller triggers the piezoelectric valve to dispense glue after receiving the signal.
[0030] Further, the piezoelectric valve controller: the piezoelectric valve is a piezoelectric jet dispensing valve with a closed-loop adjustment function, which realizes accurate adjustment of the output force through closed-loop adjustment of the output value monitored in real time, so that the valve body realizes higher precision dispensing.
[0031] The motion control card: the motion control card mainly receives motion control signals and parameters, makes corresponding calculations, and sends control output to the piezoelectric valve controller.
[0032] Industrial computer: the industrial computer sends the instruction of triggering the opening valve, and the motion control card converts and records the pulse signal; the corresponding pulse signal is sent to the piezoelectric valve controller through the motion control card to make the piezoelectric valve discharge glue, and the industrial computer software compares the point number of the pulse signal at the end of the motion control card with the actual discharge point number of the piezoelectric valve controller to form a closed-loop monitoring.
[0033] With the help of specific instructions issued by the industrial computer, the motion control card outputs high-speed and accurate pulse signals to the piezoelectric valve controller, which effectively triggers the movement of the piezoelectric valve assembly. Therefore, in the design, the architecture of the connection between the industrial computer and the motion control card module is clearly covered. The general output interface of the motion control card module is connected to the external trigger interface of the piezoelectric valve controller in a stable and reliable manner, ensuring that the pulse signal can be accurately transmitted and triggered.
[0034] The dispensing equipment makes full use of the efficient signal acquisition function of the motion control card to record the number of pulses generated by the corresponding input interface in real time and accurately. Therefore, the high-speed general output interface of the motion control card corresponding to the piezoelectric valve controller must be closely connected to the input interface of the motion control card with strong acquisition function; this acquisition card can configure idle general input or limit input as a pulse acquisition interface, thereby meeting the monitoring needs in different scenarios.
[0035] It should be noted that the above technical features continue to be combined to form various embodiments not listed above, which are considered to be within the scope of the description of the present application; and for those skilled in the art, the above-mentioned improvements or changes can be made according to the above-mentioned description, and all these improvements and changes should belong to the protection scope of the appended claims of the present application.
Claims
1. A dispensing device, characterized in that; The piezoelectric valve assembly is provided with a piezoelectric valve body, a heating structure and a spray head; the bottom of the piezoelectric valve body is fixed with the top of the heating structure, and the bottom of the heating structure is threadedly fixed with the spray head; the heating structure is provided with a heating shell, the inner cavity of the heating shell gradually decreases from top to bottom, a retention groove is arranged on the inner edge of the inner cavity, and a heating unit is arranged in the retention groove; the retention groove is an arc structure; one side of the retention groove is combined with the inner edge of the inner cavity, and the opposite side of the retention groove extends to the center position of the inner cavity; the recessed part of the retention groove is in the same vertical plane as the inner edge of the inner cavity.
2. The adhesive dispensing apparatus of claim 1, wherein: The heating unit is a heating wire and a power supply; the power supply is installed inside the heating shell, and the power supply is connected with the heating wire through a wire.
3. The adhesive dispensing apparatus of claim 1, wherein: The piezoelectric valve body is also provided with an air inlet, a glue inlet and an exhaust port, the air inlet is connected with a gas source pipeline, and the glue inlet is connected with a glue reservoir pipeline.
4. The adhesive dispensing apparatus of claim 1, wherein ； A piezoelectric valve controller, a motion control card and an industrial computer are also provided; the piezoelectric valve body is electrically connected with the piezoelectric valve controller through a connecting line; the output interface of the piezoelectric valve controller is electrically connected with the input interface of the motion control card; the external trigger interface of the piezoelectric valve controller is electrically connected with the output interface of the motion control card; the motion control card is installed on the PCI slot of the industrial computer, and the industrial computer is electrically connected with the piezoelectric valve controller.
5. The device of claim 4, wherein: The piezoelectric valve body is a piezoelectric jet dispensing valve with the model AXXON APJ1500S; the piezoelectric jet dispensing valve has a closed-loop adjustment function, and through closed-loop adjustment of the output value monitored in real time, the output force is accurately adjusted, so that the valve body realizes precise dispensing.
6. The adhesive dispensing apparatus of claim 4, wherein: The motion control card has the model GTS-800-PG-PCI-G of AXXON, receives a motion control signal and transmits the motion control signal to the piezoelectric valve controller.
7. The adhesive dispensing apparatus of claim 4, wherein: The industrial computer sends an instruction to open the valve, the motion control card converts and records the pulse signal; the motion control card sends a corresponding pulse signal to the piezoelectric valve controller to make the piezoelectric valve assembly dispense glue.