Electric spray gun body structure with upper amplitude modulation structure

Abstract

The utility model discloses an electric spray gun body structure with an upper amplitude modulation structure. The electric spray gun body structure comprises a gun body, a material pot, a nozzle assembly and a material needle, a first channel, a second channel, a third channel and a coating channel are formed in the gun body, and an amplitude modulation assembly is installed on the gun body at the same time. A main atomization channel and an auxiliary atomization channel are arranged in the nozzle assembly, the first channel is communicated with the motor air port, the main atomization channel and the interior of the material pot, the third channel is communicated with the coating channel, and the amplitude modulation assembly controls communication between the first channel and the second channel and adjustment of the size of a communication gap. According to the utility model, not only can the switching between the circular spraying and the elliptical spraying be realized, but also the size of the communicated gap between the channel I and the channel III is controlled in the rotating process of the auxiliary screw plug, and when the coating is switched from the circular spraying to the elliptical spraying, the atomizing length of the sprayed elliptical spraying can be randomly adjusted according to actual requirements; the device is simple in structure and very convenient to operate and use.

Description

Technical Field

[0001] The utility model relates to the technical field of spray guns, in particular to a gun body structure of an electric spray gun with an amplitude modulation structure arranged on top. Background Art

[0002] A spray gun is a tool for spraying paint. It uses compressed air to quickly release power to spray paint from the nozzle. The design between the nozzle and the needle rod is particularly important for the spraying effect.

[0003] Electric spray guns need to atomize paint into different shapes according to different spraying needs. Existing electric spray guns atomize paint into circular shapes and elliptical shapes of a certain length. During the process of changing the atomization shape from circular to elliptical, the atomization length cannot be arbitrarily adjusted according to actual spraying needs. In addition, electric spray guns have an amplitude modulation function, which has a relatively complex structure and high production and manufacturing costs. Therefore, it is necessary to improve the amplitude modulation function structure of existing electric spray guns. Summary of the Invention

[0004] The purpose of the present utility model is to solve the problems raised in the above background technology and to provide an electric spray gun body structure with an amplitude modulation structure placed on top.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: an electric spray gun body structure with an amplitude modulation structure on top, including a gun body, a material pot, a nozzle assembly, and a material needle; channel one, channel two, channel three, and a paint channel are respectively provided in the gun body, and an amplitude modulation assembly is also installed on the gun body; a main atomization channel and a secondary atomization channel are respectively provided in the nozzle assembly, and channel one is respectively communicated with the motor air outlet, the main atomization channel, and the inside of the material pot, and channel three is communicated with the paint channel. The amplitude modulation assembly controls the communication between channel one and channel two, and the adjustment of the size of the communication gap, thereby realizing the control of the ventilation opening and closing of the secondary atomization channel and the adjustment of the ventilation size.

[0006] In the above-mentioned electric spray gun gun body structure with an amplitude modulation structure, the amplitude modulation assembly includes an amplitude modulation knob, an amplitude modulation screw plug, and an amplitude modulation screw seat. The amplitude modulation screw seat is fixedly connected to the gun body, the amplitude modulation screw plug and the amplitude modulation screw seat are threadedly connected, and the amplitude modulation knob is connected to the amplitude modulation screw seat; a plurality of air holes connecting channel one and channel two are provided in the gun body, and the rotation of the amplitude modulation screw plug controls the opening and closing of the air holes and the size of the opening gap, thereby controlling the communication between channel one and channel two and the auxiliary atomization channel. The ventilation opening and closing and ventilation size adjustment of the auxiliary atomization channel in the nozzle assembly are controlled by rotating the amplitude modulation screw plug.

[0007] In the above-mentioned electric spray gun body structure with an amplitude modulation structure placed on it, a mounting hole for installing the amplitude modulation component is provided on the gun body, and a tapered hole is provided at the bottom of the mounting hole. The tapered holes are respectively communicated with the end of channel two and the vent hole. A control panel is provided at the end of the amplitude modulation screw plug, and a conical surface matching the tapered hole is provided on the side of the control panel. The ventilation opening and closing between channel one and channel two and the ventilation size adjustment are controlled by the control panel.

[0008] In the above-mentioned electric spray gun body structure with an amplitude modulation structure placed on top, the channel one and channel two are arranged on the same central axis, the amplitude modulation component is arranged above the gun body, and the central axis of the mounting hole is arranged perpendicular to the central axes of channel one and channel two.

[0009] In the above-mentioned electric spray gun body structure with an amplitude modulation structure placed on top, a positioning boss is provided on the amplitude modulation screw plug, and a disc spring is provided at the contact point between the positioning boss and the amplitude modulation screw seat.

[0010] In the above-mentioned electric spray gun body structure with an amplitude modulation structure placed on top, a material pot air inlet hole is provided in the gun body, and the channel 1 is communicated with the material pot through the material pot air inlet hole.

[0011] In the above-mentioned electric spray gun body structure with an amplitude modulation structure placed on top, a duckbill valve is provided at the end of the material pot air inlet hole communicating with the material pot.

[0012] In the above-mentioned electric spray gun body structure with an amplitude modulation structure placed on top, the channel three is connected to the material pot through the material pipe.

[0013] In the above-mentioned electric spray gun body structure with an amplitude modulation structure placed on top, the nozzle assembly includes an atomizing cap, a fixing cap, and a nozzle body. The fixing cap fixes the nozzle assembly to the gun body. A secondary atomizing channel and a main atomizing channel are formed between the nozzle body and the atomizing cap. Channel 2 is connected to the secondary atomizing channel and the air hole on the upper side of the atomizing cap.

[0014] By adopting the above technical solution, the utility model has the following beneficial effects:

[0015] The utility model drives the movement of the amplitude modulation screw plug through the rotation of the amplitude modulation knob in the amplitude modulation component. The amplitude modulation screw plug controls the communication between channel one and channel two, and the adjustment of the size of the communication gap, thereby controlling the ventilation opening and closing of the auxiliary atomization channel and the adjustment of the ventilation size. It not only realizes the switching between the spraying circle and the elliptical shape, but also controls the size of the communication gap between channel one and channel two during the rotation of the amplitude modulation screw plug. When the paint switches from the circle to the elliptical shape, the atomization length of the sprayed elliptical shape can be arbitrarily adjusted according to actual requirements. The utility model has a simple structure and is very convenient to operate and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a three-dimensional diagram of the utility model;

[0017] Figure 2 、 Figure 3 It is a three-dimensional cross-sectional view of the utility model in two different directions;

[0018] Figure 4 It is a planar cross-sectional view of the utility model;

[0019] Figure 5 It is a three-dimensional cross-sectional view of the gun body in the utility model;

[0020] Figure 6 It is a stereoscopic diagram of the amplitude-modulating screw plug of the utility model. DETAILED DESCRIPTION

[0021] The present invention will be further described in conjunction with the accompanying drawings.

[0022] See also Figures 1 to 6 The utility model provides an electric spray gun body structure with an amplitude modulation structure on top, including a gun body 1, a material pot 2, a nozzle assembly 3, and a material needle 4; channel one 5, channel two 6, channel three 7, and a paint channel 8 are respectively provided in the gun body 1, and an amplitude modulation assembly 9 is also installed on the gun body 1.

[0023] The nozzle assembly 3 includes an atomizing cap 25, a fixing cap 26, and a nozzle body 27. The fixing cap 26 fixes the nozzle assembly 3 to the gun body 1. A secondary atomizing channel 11 and a main atomizing channel 10 are formed between the nozzle body 27 and the atomizing cap 25. Channel 2 6 is communicated with the secondary atomizing channel 11 and the air hole 30 on the upper side of the atomizing cap 25.

[0024] The channel 1 5 is connected to the motor air outlet, the main atomization channel 10, and the inside of the material pot 2 respectively, the channel 3 7 is connected to the paint channel 8, and the amplitude modulation component 9 controls the connection between the channel 1 5 and the channel 2 6, as well as the adjustment of the size of the connection gap.

[0025] The amplitude modulation component 9 includes an amplitude modulation knob 12, an amplitude modulation screw plug 13, and an amplitude modulation screw seat 14. The gun body 1 is provided with a mounting hole 16 for mounting the amplitude modulation component 9. The amplitude modulation screw seat 14 is fixedly connected to the mounting hole 16 of the gun body 1. The amplitude modulation screw plug 13 and the amplitude modulation screw seat 14 are threadedly connected, and the amplitude modulation knob 12 is connected to the amplitude modulation screw seat 14. A plurality of vents 15 connecting channel 1 5 and channel 2 6 are provided in the gun body 1. A tapered hole 17 is provided at the bottom of the mounting hole 16, and the tapered holes 17 are respectively connected to the passage 1 The end of channel 1 6 and the vent 15 are connected, and a control plate 18 is provided at the end of the amplitude-modulating screw plug 13, and a conical surface 19 matching the conical hole 17 is provided on the side of the control plate 18; specifically, the amplitude-modulating screw plug 13 rotates, and the opening and closing of multiple vents 15 and the size of the opening gap are controlled by the control plate 18, thereby controlling the communication between channel 1 5 and channel 2 6 and the auxiliary atomization channel 11, so that the ventilation opening and closing of the auxiliary atomization channel 11 and the ventilation size adjustment are controlled by rotating the amplitude-modulating screw plug 13.

[0026] Preferably, the channel 1 5 and the channel 2 6 are arranged on the same central axis, the amplitude modulation component 9 is arranged above the gun body 1, and the central axis of the mounting hole 16 is arranged perpendicular to the central axes of the channel 1 5 and the channel 2 6.

[0027] Furthermore, a positioning boss 20 is provided on the amplitude modulation screw plug 13, and a disc spring 21 is provided at the contact point between the positioning boss 20 and the amplitude modulation screw seat 14. The disc spring 21 ensures the smooth rotation of the amplitude modulation screw plug 13 and ensures the sealing of the amplitude modulation screw plug 13 when it is in the closed state and the control plate 18 and the tapered hole 17 thereon cooperate to close.

[0028] Furthermore, a material pot air inlet hole 22 is provided in the gun body 1, and the channel 1 5 is communicated with the material pot 2 through the material pot air inlet hole 22. The channel 1 5 is communicated with the material pot 2 through the material pot air inlet hole 22.

[0029] Furthermore, a duckbill valve 23 is provided at the end of the material pot air inlet 22 communicating with the material pot 2, and the channel three 7 is connected to the material pot 2 through the material pipe 24.

[0030] The working principle of the utility model is further introduced below:

[0031] During use, the rear end of the gun body 1 is connected to a motor, with the motor's air outlet correspondingly connected to channel 1. When operating, the trigger 28 is pulled to turn on the switch, causing the motor in the spray gun to start operating. Simultaneously, the material needle 4 moves backward, opening the paint channel 8 at the nozzle body 27. The motor's operation causes air to flow into the gun body through channel 1-5. When the amplitude modulation knob 12 is tightened and closed, air flows from channel 1-5 in the gun body, passes through the material pot air inlet 22, and the duckbill valve 23, and enters the material pot 3. Due to pressure, the paint is pressed through the material pipe into the paint channel 8 of the gun body and reaches the nozzle body 27. Simultaneously, the air from channel 1-5 in the gun body passes through the main atomization channel 10, siphoning and atomizing the paint at the nozzle body. The paint is then evenly atomized and sprayed onto the object being sprayed, with the paint atomized into a circular shape. When the amplitude modulation knob 12 is turned, it drives the amplitude modulation plug 13 to move. The amplitude modulation plug connects the air vent 15 on the gun body with channel 2 6. Air is diverted from the gun body channel 1 7 to the gun body channel 2 6. The air flows through channel 2 to the auxiliary atomization channel 11. The main atomization channel 10 and the auxiliary atomization channel 11 siphon and atomize the paint. The air connected to the air hole 30 on the upper side of the atomization cap 25 squeezes the paint, and the paint is atomized into an elliptical shape. Rotating the amplitude modulation knob to different angles will control the gap between the air vent 15 and channel 2 6. The greater the rotation amplitude, the larger the gap, and the longer the atomized paint. Conversely, the smaller the spray width, the shorter the spray length. When the gap is zero, the spray shape is circular.

[0032] The above is a detailed introduction to the gun body structure of an electric spray gun with an amplitude modulation structure provided in an embodiment of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solutions disclosed by the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation of the present invention.

Claims

1. An electric spray gun body structure with an amplitude modulation structure placed on top, comprising a gun body (1), a material pot (2), a nozzle assembly (3), and a material needle (4); characterized in that: The gun body (1) is provided with channel 1 (5), channel 2 (6), channel 3 (7), and a paint channel (8), and an amplitude modulation component (9) is installed on the gun body (1); the nozzle component (3) is provided with a main atomization channel (10) and a secondary atomization channel (11), the channel 1 (5) is communicated with the motor air outlet, the main atomization channel (10), and the inside of the material pot (2), and the channel 3 (7) is communicated with the paint channel (8). The amplitude modulation component (9) controls the communication between channel 1 (5) and channel 2 (6), and adjusts the size of the communication gap, thereby realizing the control of the ventilation opening and closing of the secondary atomization channel (11) and the ventilation size adjustment.

2. The electric spray gun body structure with an amplitude modulation structure placed on top according to claim 1, characterized in that: The amplitude modulation assembly (9) includes an amplitude modulation knob (12), an amplitude modulation plug (13), and an amplitude modulation screw seat (14). The amplitude modulation screw seat (14) is fixedly connected to the gun body (1). The amplitude modulation plug (13) and the amplitude modulation screw seat (14) are threadedly connected. The amplitude modulation knob (12) is connected to the amplitude modulation screw seat (14). The gun body (1) is provided with a plurality of vents (15) connecting channel 1 (5) and channel 2 (6). The amplitude modulation plug (13) rotates to control the opening and closing of the vents (15) and the size of the opening gap, thereby controlling the communication between channel 1 (5) and channel 2 (6) and the auxiliary atomization channel (11). The rotation of the amplitude modulation plug (13) realizes the control of the ventilation opening and closing and ventilation size adjustment of the auxiliary atomization channel (11) in the nozzle assembly (3).

3. The electric spray gun body structure with an amplitude modulation structure placed on top according to claim 2, characterized in that: The gun body (1) is provided with a mounting hole (16) for mounting the amplitude modulation component (9), and a tapered hole (17) is provided at the bottom of the mounting hole (16). The tapered hole (17) is communicated with the end of the second channel (6) and the vent hole (15) respectively. The end of the amplitude modulation screw plug (13) is provided with a control plate (18), and a conical surface (19) matching the tapered hole (17) is provided on the side of the control plate (18). The ventilation opening and closing and ventilation size adjustment between the first channel (5) and the second channel (6) are controlled by the control plate (18).

4. The electric spray gun body structure with an amplitude modulation structure placed on top according to claim 2 or 3, characterized in that: The channel 1 (5) and the channel 2 (6) are arranged on the same central axis, the amplitude modulation component (9) is arranged above the gun body (1), and the central axis of the mounting hole (16) is arranged perpendicular to the central axes of the channel 1 (5) and the channel 2 (6).

5. The electric spray gun body structure with an amplitude modulation structure placed on top according to claim 2, characterized in that: A positioning boss (20) is provided on the amplitude modulation screw plug (13), and a disc spring (21) is provided at the contact point between the positioning boss (20) and the amplitude modulation screw seat (14).

6. The electric spray gun body structure with an amplitude modulation structure placed on top according to claim 1, characterized in that: The gun body (1) is provided with a material pot air inlet hole (22), and the channel 1 (5) is communicated with the material pot (2) through the material pot air inlet hole (22).

7. The electric spray gun body structure with an amplitude modulation structure placed on top according to claim 6, characterized in that: A duckbill valve (23) is provided at the end of the material pot air inlet hole (22) communicating with the material pot (2).

8. The electric spray gun body structure with an amplitude modulation structure placed on top according to claim 1, characterized in that: The channel three (7) is connected to the material pot (2) through the material pipe (24).

9. The electric spray gun body structure with an amplitude modulation structure placed on top according to claim 1 or 2, characterized in that: The nozzle assembly (3) includes an atomizing cap (25), a fixing cap (26), and a nozzle body (27). The fixing cap (26) fixes the nozzle assembly (3) to the gun body (1). A secondary atomizing channel (11) and a main atomizing channel (10) are formed between the nozzle body (27) and the atomizing cap (25). The second channel (6) is in communication with the secondary atomizing channel (11) and the air hole (30) on the upper side of the atomizing cap (25).

Images