Electrostatic manual spray gun controller, system and output control method

Abstract

The invention provides an electrostatic manual spray gun controller and system and an output control method, and the output control method comprises the steps: S1, starting the timing of a triggering stage after a first motion signal of a spray gun trigger is received; s2, judging whether a second action signal of the trigger is received within a first preset duration or not, if yes, ending the timing of the triggering stage after the second action signal is received, starting the timing of the locking stage, and entering S3; s3, judging whether a third action signal and a fourth action signal of the trigger are received within a second preset duration or not, if yes, starting a locking mode, sending locking signals to a spray gun electrostatic switch and an air supply switch to control the spray gun electrostatic switch and the air supply switch to be opened and maintain the opening state, ending timing of the locking stage after the fourth action signal is received, and if not, stopping timing; starting trigger detection and entering the step S4; and S4, receiving a fifth action signal of the trigger, and controlling the electrostatic switch and the air supply switch to be turned off. The powder and high-pressure output state can be locked by double-clicking the trigger within the preset time.

Description

Technical Field

[0001] The present invention relates to the technical field of spray gun control, and in particular to an electrostatic manual spray gun controller, system and output control method. Background Art

[0002] In the field of spraying, manual spray guns are widely used in production due to their outstanding advantages of ease of use, flexibility and ease of operation. Among them, electrostatic powder spray guns are also widely used in the field of electrostatic powder spraying.

[0003] At present, when using a manual spray gun, the worker needs to hold and keep pressing the manual spray gun trigger to maintain the output of powder and static electricity. Pressing the manual spray gun trigger for a long time can easily make the spray worker's hands tired, affecting production efficiency and quality. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide an electrostatic manual spray gun controller, system and output control method, which can maintain the output state of the manual spray gun without the worker's hand continuously pressing the trigger, thereby solving the problem that the current manual spray gun requires the worker to hold and keep pressing the manual spray gun trigger when in use to maintain the output of powder and static electricity, which can easily make the spray worker's hands tired and affect production efficiency and quality.

[0005] In order to solve the above technical problems, the technical solution used in the present invention is:

[0006] The present invention provides an electrostatic manual spray gun output control method, comprising:

[0007] S1, when the first action signal of the spray gun trigger is received, the triggering phase timing starts;

[0008] S2, determining whether the second action signal of the spray gun trigger is received within the first preset time period, if so, ending the triggering phase timing after receiving the second action signal, starting the locking phase timing and entering step S3; if not, not starting the locking phase timing;

[0009] S3, determining whether the third action signal and the fourth action signal of the spray gun trigger are received within the second preset time period, if so, starting the locking mode, sending a locking signal to the electrostatic switch and the air supply switch of the spray gun to control both to be turned on and maintained in the turned-on state, and ending the locking phase timing after receiving the fourth action signal, starting the trigger detection and entering step S4; if not, not starting the locking mode;

[0010] S4, upon receiving the fifth action signal of the spray gun trigger, the electrostatic switch and the air supply switch of the spray gun are controlled to be turned off;

[0011] The first action signal and the third action signal correspond to an action state after the trigger is pressed, and the second action signal, the fourth action signal and the fifth action signal correspond to an action state after the trigger is released.

[0012] Preferably, in step S2, if the second action signal is not received within the first preset time, the normal mode is started, and the electrostatic switch and the air supply switch of the spray gun are controlled to be turned on and maintained in the turned-on state;

[0013] After the second action signal is received for more than the first preset time, the electrostatic switch and the air supply switch of the spray gun are controlled to be turned off.

[0014] Preferably, in step S3, if the third action signal and / or the fourth action signal is not received within the second preset time period, a protection mode is activated and no action signal is sent to the electrostatic switch and the air supply switch of the spray gun.

[0015] Preferably, the first preset duration is not greater than the second preset duration.

[0016] Further preferably, the first preset time length and the second preset time length are both no greater than 0.5 s.

[0017] Preferably, the electrostatic switch is a sinusoidal pulse width modulator.

[0018] Preferably, the air supply switch is a solenoid valve.

[0019] Another object of the present invention is to provide an electrostatic manual spray gun controller, wherein the controller is preset with the aforementioned electrostatic manual spray gun output control method.

[0020] In addition, the present invention also provides an electrostatic manual spray gun system, including a manual spray gun, a powder supply device and a controller, the controller is provided with a control unit, an air supply switch and an electrostatic switch, the manual spray gun is provided with a trigger, the trigger, the air supply switch and the electrostatic switch are respectively connected to the control unit signal, the air supply switch is connected to the manual spray gun through the powder supply device, the electrostatic switch is electrically connected to the manual spray gun, and the control unit is preset with the aforementioned electrostatic manual spray gun output control method.

[0021] Compared with the prior art, the beneficial effects of the electrostatic manual spray gun output control method described in the present invention are mainly reflected in:

[0022] The method of the present invention sets the trigger stage timing and the locking stage timing according to the action signal of the trigger, and sets the locking mode according to the judgment of the change of the trigger action signal within the trigger stage timing and the locking stage timing. After the locking mode is started, it can be realized that releasing the trigger will not cause the spray gun to stop outputting, but will put the spray gun in an on state of continuously outputting powder and static electricity, and the locking mode can be released according to the action signal of the trigger to stop the spray gun from outputting, thereby providing the spray gun with a function of locking the powder and high-voltage output state by double-clicking the trigger within a preset time, freeing the spray gun operator's hands from continuous pressing work, simplifying manual spraying operations, and improving production efficiency and quality. It solves the problem that the current manual spray gun requires workers to hold and keep pressing the manual spray gun trigger when in use to maintain the output of powder and static electricity, which easily makes the spraying worker's hands tired and affects production efficiency and quality. The control method is simple, easy to understand, and convenient for workers to operate.

[0023] Compared with the prior art, the beneficial effects of the electrostatic manual spray gun system described in the present invention are mainly reflected in: the electrostatic manual spray gun system of the present invention uses the above-mentioned electrostatic manual spray gun output control method, has the beneficial effects of the above-mentioned control method, is more convenient to use, and compared with the solution of locking the spray gun trigger by physical rigid fixing, the system of the present invention does not require additional structure, is easy to implement, and has a low implementation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other purposes, features and advantages of the present invention will become more clear by more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts in all the accompanying drawings, and the accompanying drawings are not deliberately scaled to the actual size, and the focus is on illustrating the main purpose of the present invention.

[0025] Figure 1 A schematic flow chart of an electrostatic manual spray gun output control method provided by an embodiment of the present invention; DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments cited are not intended to limit the present invention. In the present embodiment, it should be understood that the orientations or positional relationships indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0027] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used in the present invention are for illustrative purposes only.

[0028] This embodiment provides an electrostatic manual spray gun output control method, such as Figure 1 As shown, including:

[0029] S1, when the first action signal of the spray gun trigger is received, the triggering phase timing starts;

[0030] S2, determining whether the second action signal of the spray gun trigger is received within the first preset time period, if so, ending the triggering phase timing after receiving the second action signal, starting the locking phase timing and entering step S3; if not, not starting the locking phase timing;

[0031] S3, determining whether the third action signal and the fourth action signal of the spray gun trigger are received within the second preset time period, if so, starting the locking mode, sending a locking signal to the electrostatic switch and the air supply switch of the spray gun to control both to be turned on and maintained in the turned-on state, and ending the locking phase timing after receiving the fourth action signal, starting the trigger detection and entering step S4; if not, not starting the locking mode;

[0032] S4, upon receiving the fifth action signal of the spray gun trigger, the electrostatic switch and the air supply switch of the spray gun are controlled to be turned off;

[0033] The first action signal and the third action signal correspond to an action state after the trigger is pressed, and the second action signal, the fourth action signal and the fifth action signal correspond to an action state after the trigger is released.

[0034] The method of this embodiment sets the trigger stage timing and the locking stage timing according to the action signal of the trigger, and sets the locking mode according to the judgment of the change of the trigger action signal within the trigger stage timing and the locking stage timing. After the locking mode is started, it can be realized that releasing the trigger will not cause the spray gun to stop outputting, but will put the spray gun in an on state of continuously outputting powder and static electricity, and the locking mode can be released according to the action signal of the trigger to stop the spray gun from outputting, thereby providing the spray gun with a function of locking the powder and high-voltage output state by double-clicking the trigger within a preset time, freeing the spray gun operator's hands from continuous pressing work, simplifying manual spraying operations, and improving production efficiency and quality. It solves the problem that the current manual spray gun requires workers to hold and keep pressing the manual spray gun trigger when in use to maintain the output of powder and static electricity, which easily makes the spraying worker's hands tired and affects production efficiency and quality. The control method is simple, easy to understand, and convenient for workers to operate.

[0035] Specifically, the electrostatic switch is a sinusoidal pulse width modulator, and the air supply switch is a solenoid valve, which are usually arranged in the spray gun controller and used for on-off control of the electrostatic circuit and air circuit of the spray gun.

[0036] The above embodiment can be understood as that by double-clicking the trigger within the preset time, the output state of the spray gun can be locked, so that the spray gun maintains powder and electrostatic output. Among them, receiving the first action signal and the second action signal within the first preset time represents a single click, and receiving the third action signal and the fourth action signal within the second preset time after the single click represents a double click. According to operating habits, the first preset time is preferably not longer than the second preset time, and according to actual test results, the first preset time and the second preset time are both no more than 0.5s. More specifically, the first preset time is preferably 0.3s, and the second preset time is preferably 0.5s.

[0037] In a preferred embodiment, in step S2, if the second action signal is not received within the first preset time, the normal mode is started, and the electrostatic switch and the air supply switch of the spray gun are controlled to be turned on and maintained on; after the second action signal is received after exceeding the first preset time, the electrostatic switch and the air supply switch of the spray gun are controlled to be turned off. This implementation is the same as the conventional method of controlling the spray gun to continuously output by keeping pressing.

[0038] In another preferred embodiment, in step S3, if the third action signal and / or the fourth action signal is not received within the second preset time, the protection mode is activated, and no action signal is sent to the electrostatic switch and the air supply switch of the spray gun. The method of this embodiment can handle the situation where the trigger is clicked due to misoperation, avoid the situation where the spray gun is triggered due to abnormal operation, and provide a protection measure for the spray gun against misoperation.

[0039] Based on the above-mentioned method for controlling the output of an electrostatic manual spray gun, an embodiment of an electrostatic manual spray gun controller is also provided, and the controller is preset with the above-mentioned method for controlling the output of an electrostatic manual spray gun.

[0040] In addition, an embodiment of an electrostatic manual spray gun system is also provided. The electrostatic manual spray gun system of this embodiment includes a manual spray gun, a powder supply device and a controller. The controller is provided with a control unit, an air supply switch and an electrostatic switch. The manual spray gun is provided with a trigger. The trigger, the air supply switch and the electrostatic switch are respectively connected to the control unit signal. The air supply switch is connected to the manual spray gun through the powder supply device. The electrostatic switch is electrically connected to the manual spray gun. The control unit is preset with the aforementioned electrostatic manual spray gun output control method.

[0041] The electrostatic manual spray gun system of the present invention uses the above-mentioned electrostatic manual spray gun output control method, has the beneficial effects of the above-mentioned control method, is more convenient to use, and compared with the solution of maintaining the output trigger state by physically locking the spray gun trigger in a physical hard fixing manner such as setting a proprietary accessory to physically clamp the manual spray gun trigger, the system of the present invention does not require any additional structure, is easy to implement, and has a low implementation cost.

[0042] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0044] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for controlling the output of an electrostatic manual spray gun, characterized in that: include: S1, when the first action signal of the spray gun trigger is received, the triggering phase timing starts; S2, determining whether the second action signal of the spray gun trigger is received within the first preset time period, if so, ending the triggering phase timing after receiving the second action signal, starting the locking phase timing and entering step S3; if not, not starting the locking phase timing; S3, determining whether the third action signal and the fourth action signal of the spray gun trigger are received within the second preset time period, if so, starting the locking mode, sending a locking signal to the electrostatic switch and the air supply switch of the spray gun to control both to be turned on and maintained in the turned-on state, and ending the locking phase timing after receiving the fourth action signal, starting the trigger detection and entering step S4; if not, not starting the locking mode; S4, upon receiving the fifth action signal of the spray gun trigger, the electrostatic switch and the air supply switch of the spray gun are controlled to be turned off; The first action signal and the third action signal correspond to an action state after the trigger is pressed, and the second action signal, the fourth action signal and the fifth action signal correspond to an action state after the trigger is released.

2. The method for controlling the output of an electrostatic manual spray gun according to claim 1, characterized in that: In step S2, if the second action signal is not received within the first preset time, the normal mode is started, and the electrostatic switch and the air supply switch of the spray gun are controlled to be turned on and maintained in the turned-on state; After the second action signal is received for more than the first preset time, the electrostatic switch and the air supply switch of the spray gun are controlled to be turned off.

3. The electrostatic manual spray gun output control method according to claim 1, characterized in that: In step S3, if the third action signal and / or the fourth action signal is not received within the second preset time period, the protection mode is activated and no action signal is sent to the electrostatic switch and the air supply switch of the spray gun.

4. The electrostatic manual spray gun output control method according to claim 1, characterized in that: The first preset time length is not greater than the second preset time length.

5. The method for controlling the output of an electrostatic manual spray gun according to claim 4, characterized in that: The first preset time length and the second preset time length are both no greater than 0.5s.

6. The method for controlling the output of an electrostatic manual spray gun according to claim 1, characterized in that: The electrostatic switch is a sinusoidal pulse width modulator.

7. The method for controlling the output of an electrostatic manual spray gun according to claim 1, characterized in that: The gas supply switch is a solenoid valve.

8. An electrostatic manual spray gun controller, characterized in that: The controller is preset with an electrostatic manual spray gun output control method as described in any one of claims 1 to 7.

9. An electrostatic manual spray gun system, comprising a manual spray gun, a powder supply device and a controller, characterized in that: The controller is provided with a control unit, an air supply switch and an electrostatic switch, the manual spray gun is provided with a trigger, the trigger, the air supply switch and the electrostatic switch are respectively connected to the control unit signal, the air supply switch is connected to the manual spray gun through the powder supply device, the electrostatic switch is electrically connected to the manual spray gun, and the control unit is preset with an electrostatic manual spray gun output control method as described in any one of claims 1 to 7.

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