Air brush flow control device

Abstract

The utility model discloses a spray pen flow control device which comprises a micro stepping motor and a lead screw, the micro stepping motor is connected with the lead screw, the micro stepping motor and the lead screw are connected with a pen body, the lead screw is provided with a flow control buckle, the pen body is provided with a material bin and an air inlet, and one end of the pen body is provided with a material outlet. The micro stepping motor drives the lead screw to realize accurate adjustment of the flow control buckle, so that the output quantity of fluid in the airbrush can be controlled very carefully, high-precision control of the flow of the airbrush is realized by utilizing the micro stepping motor, and meanwhile, the simplicity of the structure and the economical efficiency of the cost are kept.

Description

Technical Field

[0001] This utility model belongs to the field of fluid control technology, specifically relating to an inkjet pen flow control device. Background Technology

[0002] In fields such as painting, model making, and precision painting, airbrushes are an important tool. The precision of their flow control directly affects not only the detail, color gradation, and final visual effect of the artwork, but also work efficiency and cost control.

[0003] Currently, most airbrush flow control devices on the market rely on manual valve adjustment or complex closed-loop control systems to adjust flow. While manual adjustment is simple and direct, it struggles to achieve high-precision flow control, especially in situations requiring continuous fine adjustments. In contrast, closed-loop control systems, with their high precision and stability, have secured a place in the high-end market and professional fields. This system integrates sensors, microprocessors, and precision actuators to achieve real-time monitoring and precise adjustment of airbrush flow, effectively overcoming the shortcomings of manual adjustment. However, high manufacturing costs, complex system architecture, and sensitivity to changes in the external environment hinder the widespread adoption of closed-loop control systems, particularly in cost-sensitive applications and those involving frequent mobile operations.

[0004] In particular, for users who prioritize cost-effectiveness and portability, existing technical solutions have significant shortcomings: firstly, the accuracy of manual adjustment is limited, and secondly, high-precision closed-loop systems are too complex and costly, making them unsuitable for large-scale application. Utility Model Content

[0005] The purpose of this invention is to overcome the problems of the prior art and to propose an inkjet pen flow control device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flow control device for an airbrush includes a micro stepper motor and a lead screw. The micro stepper motor and the lead screw are connected together and connected to the airbrush body. A flow control buckle is installed on the lead screw. A hopper and an air inlet are installed on the airbrush body, and an outlet is provided at one end of the airbrush body.

[0008] Furthermore, the flow control latch is connected to the flow control trigger.

[0009] Furthermore, an internal fluid control valve is provided inside the pen body, and the flow control trigger is connected to the internal fluid control valve.

[0010] Furthermore, the flow control latch is engaged with the flow control trigger.

[0011] Furthermore, the micro stepper motor is equipped with control pins.

[0012] Furthermore, the control pin is connected to the driver and the power supply.

[0013] Furthermore, the airbrush cartridge is loaded with paint.

[0014] Furthermore, the air inlet of the airbrush is connected to an air pump.

[0015] Furthermore, the air inlet of the airbrush is provided with a threaded interface.

[0016] Furthermore, the pen body is connected to a handle, and a control circuit board is installed in the handle, with an open-loop control system embedded in the control circuit board.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] This invention proposes an airbrush flow control device that uses a micro stepper motor to drive a lead screw, thereby achieving precise adjustment of the flow control latch. This allows for very fine control of the fluid output within the airbrush. The micro stepper motor enables high-precision control of the airbrush flow while maintaining structural simplicity and cost-effectiveness. It is an airbrush accessory that is simple in structure, low in cost, and capable of achieving high-precision flow control.

[0019] Furthermore, compared to traditional manually adjustable airbrushes, the operation process is simplified. Users can adjust the flow rate simply through the control panel or software interface without directly contacting the mechanical parts inside the airbrushes, reducing the difficulty of operation and the risk of misoperation. This invention has the advantages of high precision, stability, automation, and ease of maintenance.

[0020] Furthermore, due to its high precision, good stability, and ease of operation, this airbrush flow control device can be widely used in various fields such as artistic creation, industrial spraying, 3D printing, and scientific experiments, meeting the needs of different industries for precise spraying. By accurately controlling the fluid output, unnecessary waste can be reduced, material consumption and environmental pollution can be decreased. Attached Figure Description

[0021] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the present invention and do not specifically limit the shapes and proportions of the components. In the drawings:

[0022] Figure 1 This is a front view of the structure of an airbrush flow control device according to the present invention.

[0023] Figure 2 This is a top view of the structure of an airbrush flow control device according to the present invention.

[0024] Figure 3 This is a structural cross-sectional view of an airbrush flow control device according to the present invention.

[0025] Among them, 1-material bin, 2-micro stepper motor, 3-flow control trigger, 4-flow control buckle, 5-lead screw, 6-discharge port, 7-control pin, 8-air inlet, 9-pen body. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] Example 1

[0031] See Figure 1 and Figure 2 A flow control device for an airbrush includes a micro stepper motor 2 and a lead screw 5, which are connected together and connected to the airbrush body 9. A flow control latch 4 is installed on the lead screw 5. A material hopper 1 and an air inlet 8 are installed on the airbrush body 9, and an outlet 6 is provided at one end of the airbrush body 9. The micro stepper motor 2 has high stepping accuracy and strong anti-interference ability, which can ensure stable output performance during long-term operation. It is not easily affected by external factors such as vibration and temperature changes, which increases the reliability and durability of the airbrush in complex environments. With its high precision and stability, the micro stepper motor can precisely control the rotation of the lead screw to achieve fine adjustment of the flow control latch, ensuring the accuracy and repeatability of flow regulation. It is suitable for occasions requiring fine spraying. Because it uses electronic control components, the device is easy to integrate with a computer or control system to achieve automated control or programmable control. Users can set different flow modes or parameters as needed to improve work efficiency and flexibility.

[0032] Flow control latch 4 connects to flow control trigger 3. See also Figure 3 An internal fluid control valve is installed inside the pen body 9, and a flow control trigger 3 is connected to the internal fluid control valve. A flow control latch 4 is engaged with the flow control trigger 3. The internal fluid control valve inside the pen body is connected to the flow control trigger, which further enhances the accuracy and response speed of flow control. By adjusting the position of the trigger, the opening degree of the internal fluid control valve can be directly controlled, thereby precisely regulating the flow rate of the paint.

[0033] The miniature stepper motor 2 is equipped with control pin 7. Control pin 7 connects to the driver and power supply. Optionally, the control pin 7 of the miniature stepper motor 2 not only connects to the driver and power supply but also provides an interface with other control devices. This allows the airbrush flow control device to be easily integrated with computers, PLCs, or other control systems to achieve remote control and automated operation. The airbrush cartridge 1 is loaded with paint, taking into account the efficiency of paint storage and supply. The airbrush air inlet 8 is connected to the air pump. The airbrush air inlet 8 is equipped with a threaded interface. The airbrush air inlet 8 connects to the air pump through the threaded interface, ensuring a stable supply and regulation of airflow, improving the working efficiency and spraying quality of the airbrush.

[0034] The modular design makes it easy to disassemble and replace components such as miniature stepper motors, lead screws, and flow control clips, facilitating maintenance and upkeep. Furthermore, as technology advances, the control system can be easily upgraded or more advanced components can be replaced to meet new application requirements or improve performance.

[0035] The pen body (9) connects to the handle, which houses a control circuit board with an embedded open-loop control system. Users can flexibly adjust flow parameters via the control circuit board or external devices to achieve personalized settings. The open-loop control system is simple in structure, has a low failure rate, and is easy to troubleshoot and repair, reducing maintenance costs. High-precision flow control of the airbrush is achieved through precise control of a micro stepper motor and the application of optimized algorithms in the open-loop control system, meeting the needs of fine-grained tasks such as painting and spraying. This avoids the use of complex closed-loop systems, greatly simplifying the equipment structure, reducing manufacturing costs, and enhancing the product's market competitiveness.

[0036] Example 2

[0037] See Figure 1 and Figure 2 This embodiment provides an airbrush flow control device. A micro stepper motor 2 and a lead screw 5 are fixedly connected to the airbrush body 9. One end of the flow control latch 4 is mounted on the lead screw 5, and the other end of the flow control latch 4 latches the airbrush flow control trigger 3, so that the flow control latch 4 can move in conjunction with the airbrush flow control trigger 3. The control pin 7 of the micro stepper motor is connected to the driver and the power supply. See [link to relevant documentation]. Figure 3 Paint is loaded into the paint hopper 1 of the airbrush, and air is introduced into the air pump through the air inlet 8 of the airbrush.

[0038] The specific working principle of an airbrush flow control device is as follows:

[0039] Before starting work, control the micro stepper motor 2 to return the inkjet flow control trigger 3 to the closed position. The rightmost end of the micro stepper motor's stroke is the closed position, and the leftmost end of the micro stepper motor's stroke is the maximum flow position. After that, turn on the air pump to use the micro stepper motor 2 to control the paint flow when the inkjet is working.

[0040] Specifically, the opening degree of the discharge port 6 is controlled by the micro stepper motor 2 to affect the flow rate. The micro stepper motor 2, which is small in size, high in precision, and fast in response, is selected as the power source. By precisely controlling the rotation angle and speed of the micro stepper motor 2, the position of the lead screw 5 is affected. The lead screw 5 is linked to the inkjet flow control trigger 3. The position of the inkjet flow control trigger 3 affects the opening degree of the inkjet discharge port 6, thereby achieving fine adjustment of the cross-section of the fluid channel inside the inkjet.

[0041] The transmission mechanism, consisting of lead screw 5 and flow control buckle 4, converts the rotational motion of micro stepper motor 2 into linear or rotational motion of the internal fluid control valve inside pen body 9, ensuring the accuracy and stability of motion transmission. The inkjet flow control trigger 3 controls the internal fluid control valve to change the opening degree of the discharge port.

[0042] The control circuit board is integrated into the inkjet handle or external control box. It receives external input signals such as buttons, knobs or wireless signals and converts them into control commands for the micro stepper motor 2, thereby realizing the automation and digitization of flow control.

[0043] Existing open-loop control methods only include a few settings, such as off, one-quarter open, and half open. Because there is no feedback, the opening status needs to be recorded. This embodiment uses an optimized open-loop control algorithm to calculate and output corresponding control commands based on preset flow parameters and motor performance curves, ensuring the accuracy and stability of the inkjet's output flow while avoiding the high cost and complexity of closed-loop systems.

[0044] The optimized open-loop control algorithm calculates how the motor needs to operate to reach the predetermined opening degree based on the current opening status of the discharge port 6. The location of the control algorithm is determined by the control circuit board. If a control circuit board integrated inside the handle is used, the algorithm is embedded in the control circuit board. If an external control box is used, it is embedded in the host computer.

[0045] This embodiment of inkjet pen flow control maintains high precision while improving cost-effectiveness and portability. On the one hand, the development of new microchannel technology reduces production costs and improves the precision and stability of flow control; on the other hand, the introduction of intelligent algorithms and the application of IoT technology make inkjet pen flow control more intelligent and automated, capable of automatically adjusting parameters according to user needs and environmental changes, reducing manual intervention and improving work efficiency.

[0046] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of this teaching should not be determined by reference to the foregoing description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed utility model subject matter.

[0047] The above content provides a further detailed description of this utility model. It should not be considered that the specific embodiments of this utility model are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of this utility model, and all such deductions or substitutions should be considered to fall within the scope of protection of this utility model as defined by the submitted claims.

Claims

1. A spray pen flow control device, characterized by, It comprises a micro stepping motor (2) and a screw rod (5), the micro stepping motor (2) and the screw rod (5) are connected, the micro stepping motor (2) and the screw rod (5) are connected with a pen body (9), the screw rod (5) is installed with a flow control buckle (4), the pen body (9) is installed with a material bin (1) and an air inlet (8), and one end of the pen body (9) is provided with a discharge port (6).

2. A spray pen flow control device according to claim 1, wherein, The flow control buckle (4) is connected with a flow control trigger (3).

3. A spray pen flow control device according to claim 2, wherein, An inner fluid control valve is arranged in the pen body (9), and the flow control trigger (3) is connected with the inner fluid control valve.

4. A spray pen flow control device according to claim 2, wherein, The flow control buckle (4) is clamped with the flow control trigger (3).

5. A spray pen flow control device according to claim 1, wherein, The micro stepping motor (2) is provided with a control pin (7).

6. A spray pen flow control device according to claim 5, wherein, The control pin (7) is connected with a driver and a power supply.

7. A spray pen flow control device according to claim 1, wherein, The material bin (1) is loaded with paint.

8. A spray pen flow control device according to claim 1, wherein, The air inlet (8) of the spray pen is connected with an air pump.

9. A spray pen flow control device according to claim 1, wherein, The air inlet (8) of the spray pen is provided with a threaded interface.

10. A spray pen flow control device according to claim 1, wherein, The pen body (9) is connected with a handle, a control circuit board is arranged in the handle, and an open-loop control system is embedded on the control circuit board.

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