Electric spray gun structure with amplitude modulation function

Abstract

The utility model discloses an electric spray gun structure with an amplitude modulation function. The electric spray gun structure comprises a gun body, a motor, a material pot, a trigger, a nozzle assembly and a material needle, a first channel, a second channel and a third 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 an air port of the motor and the main atomization channel, the amplitude modulation assembly controls communication between the first channel and the third channel and adjustment of the size of a communication gap, and therefore ventilation opening and closing and ventilation size adjustment of the auxiliary atomization channel are controlled. 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 a spray gun technical field, concretely relates to a kind of electric spray gun structure with amplitude modulation function. BACKGROUND

[0002] Spray gun is the tool of coating spraying, spray gun is by using compressed air rapid release as power and is sprayed from nozzle, the design between nozzle and needle bar is particularly important for spraying effect.

[0003] Electric spray gun needs to atomize paint into different shapes according to different spraying needs, the shape of atomized paint of existing electric spray gun is circular and a certain length of oval shape, in the process of atomization shape changing from circular to oval, atomization length cannot be adjusted arbitrarily according to actual spraying demand;And electric spray gun has amplitude modulation function, structure is relatively complex, production cost is high;Therefore, the amplitude modulation function structure on existing electric spray gun needs to be improved. SUMMARY

[0004] The utility model discloses a purpose to solve the problem in the above background technical field, provide a kind of electric spray gun structure with amplitude modulation function.

[0005] To achieve the above object, the technical scheme of the utility model is as follows: a kind of electric spray gun structure with amplitude modulation function, including gun body, motor, material pot, trigger, nozzle assembly, material needle;The passageway one, passageway two, passageway three are respectively provided in the gun body, and amplitude modulation assembly is simultaneously installed on gun body;The main atomization passageway, vice atomization passageway are respectively arranged in the nozzle assembly, the air hole of passageway one and the main atomization passageway form the intercommunication of electric motor's air port, passageway two and the coating passageway in gun body intercommunication, the intercommunication between passageway one and passageway three and the size of intercommunication gap are adjusted by the amplitude modulation assembly control, to realize the control of vice atomization passageway's ventilation opening and closing and ventilation size adjustment.

[0006] In the above electric spray gun structure with amplitude modulation function, the amplitude modulation assembly includes amplitude modulation knob, amplitude modulation screw plug, amplitude modulation screw seat, amplitude modulation screw seat is fixedly connected with gun body, amplitude modulation screw plug is threadedly rotatably connected between amplitude modulation screw seat, and amplitude modulation knob is connected with amplitude modulation screw seat;Air hole that intercommunication passageway one and passageway three are provided in the gun body, and the opening and closing of air hole and the size of opening gap are controlled by the rotation of amplitude modulation screw plug, to control the intercommunication between passageway one and passageway three, vice atomization passageway, the ventilation opening and closing of vice atomization passageway in nozzle assembly and ventilation size adjustment are realized by the rotation of amplitude modulation screw plug.

[0007] In the electric spray gun structure with the amplitude modulation function, the nozzle assembly comprises an atomizing cap, a fixing cap, a nozzle body and a needle seat, the fixing cap is fixedly connected to the gun body, a secondary atomizing channel is formed between the nozzle body and the atomizing cap, a primary atomizing channel is formed between the atomizing cap and the needle seat, and the third channel is communicated with the secondary atomizing channel and the gas hole on the upper side of the atomizing cap.

[0008] In the electric spray gun structure with the amplitude modulation function, the end of the amplitude modulation screw plug corresponding to the air hole is provided with an annular taper.

[0009] In the electric spray gun structure with the amplitude modulation function, the third channel and the first channel are provided with the same central axis.

[0010] In the electric spray gun structure with the amplitude modulation function, the gun body is provided with a kettle air inlet hole, and the first channel is communicated with the kettle through the kettle air inlet hole.

[0011] In the electric spray gun structure with the amplitude modulation function, the end of the kettle air inlet hole communicated with the kettle is provided with a duckbill valve.

[0012] In the electric spray gun structure with the amplitude modulation function, the second channel is communicated with the kettle through a kettle pipe.

[0013] In the electric spray gun structure with the amplitude modulation function, the amplitude modulation screw plug is provided with a positioning piece capable of abutting against the amplitude modulation screw seat.

[0014] The above technical scheme has the following beneficial effects:

[0015] The rotation of the amplitude modulation knob drives the amplitude modulation screw plug to move, the amplitude modulation screw plug controls the communication between the first channel and the third channel, the size of the communication gap, the opening and closing of the secondary atomizing channel and the size adjustment of the air passage, realizes the switching between the circular and elliptical shapes of the spraying, controls the size of the communication gap between the first channel and the third channel during the rotation of the amplitude modulation screw plug, and adjusts the atomizing length of the elliptical shape according to actual requirements when the circular shape is switched to the elliptical shape; the utility model has the advantages of simple structure and convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the utility model;

[0017] Figure 2 , Figure 4 is a perspective view of the utility model from two different directions;

[0018] Figure 3 is Figure 2 the enlarged view of A part of

[0019] Figure 5 is the exploded view of the utility model. DETAILED DESCRIPTION

[0020] The utility model is further described in connection with the drawings.

[0021] Please refer to Figures 1 to 5 The utility model provides a kind of electric spray gun structure with amplitude modulation function, including gun body 1, motor 2, material kettle 3, trigger 4, nozzle assembly 5, material needle 6;Channel one 7, channel two 8, channel three 9 are respectively provided in the gun body 1, and amplitude modulation assembly 10 is simultaneously installed on gun body 1.

[0022] Nozzle assembly 5 includes atomizing cap 17, fixed cap 18, nozzle body 19, needle seat 20, fixed cap 18 is fixedly connected on gun body 1 with nozzle assembly 5, and vice atomization channel 12 is formed between nozzle body 19 and atomizing cap 17, and main atomization channel 11 is formed between atomizing cap 17 and needle seat 20, and channel three 9 is communicated with vice atomization channel 12 and the upper side air hole 21 of atomizing cap 17.

[0023] Amplitude modulation assembly 10 includes amplitude modulation knob 13, amplitude modulation screw plug 14, amplitude modulation screw seat 15, amplitude modulation screw seat 15 is fixedly connected with gun body 1, amplitude modulation screw plug 14 is threadedly rotatably connected between amplitude modulation screw seat 15, and amplitude modulation knob 13 is connected with amplitude modulation screw seat 15;Vent hole 16 for communicating channel one 7 and channel three 9 is provided in the gun body 1.

[0024] Channel one 7 is communicated with the air port of motor 2 and main atomization channel 11 respectively, and channel two 8 is communicated with the coating channel 25 in gun body, and the intercommunication between channel one 7 and channel three 9 and the size adjustment of intercommunication gap are controlled by amplitude modulation assembly 10, specifically, the opening and closing of vent hole 16 and the size of opening gap are controlled by rotating amplitude modulation screw plug 14, so that the intercommunication between channel one 7 and channel three 9 and vice atomization channel 12 is controlled, so that the air intake opening and closing and air intake size adjustment of vice atomization channel 12 are realized by rotating amplitude modulation screw plug 14.

[0025] Further, in order to facilitate the adjustment of air gap, the end portion corresponding to vent hole 16 of amplitude modulation screw plug 14 is provided with annular taper surface 22.

[0026] Further, channel three 9 and channel one 7 are provided with the same center axis.

[0027] Specifically, material kettle air inlet hole 23 is provided in the gun body 1, and channel one 7 is communicated with material kettle 3 through material kettle air inlet hole 23.

[0028] Further, duckbill valve 24 is arranged at the end portion communicated with material kettle 3 of material kettle air inlet hole 23.

[0029] Further, the channel two 8 is communicated with the paint can 3 through the pipe 28.

[0030] Further, the amplitude modulation screw plug 14 is provided with a positioning piece 26 abutting against the amplitude modulation screw seat 15 to prevent the amplitude modulation screw plug 14 from rotating and falling off.

[0031] The working principle of the utility model is further introduced as follows:

[0032] After the whole machine is connected to the power supply, the trigger 4 is pulled to open the switch to make the motor 2 start working, and meanwhile the paint needle 6 moves backward to open the paint channel 25 of the needle seat. The motor operation makes the air flow to the gun body through the channel one 7, when the amplitude modulation knob 13 is screwed tightly to be closed, the air passes through the air inlet hole 23 and the duckbill valve 24 in the gun body channel one 7 to the paint can 3, due to the pressure effect, the paint is pressed to pass through the pipe to the paint channel of the gun body and reaches the mouth of the needle seat 20, meanwhile the air passes through the main atomization channel 11 in the gun body channel one 7 to atomize the paint on the mouth of the needle seat, at this time the paint is uniformly atomized and sprayed on the sprayed object, and the paint is atomized into a circular shape. When the amplitude modulation knob 13 is unscrewed, the amplitude modulation knob drives the amplitude modulation screw plug 14 to move, the contact part of the amplitude modulation screw plug and the air hole 16 in the gun body produces a gap, the air in the gun body channel one 7 is divided into the gun body channel three 9, the air passes through the channel three to the secondary atomization channel 12, the main atomization channel 11 and the secondary atomization channel 12 produce the effect of siphoning and atomizing the paint, the air passing through the air hole 21 in the upper side of the atomization cap 17 extrudes the paint, and the paint is atomized into an elliptical shape. Rotating the amplitude modulation knob at different angles, the amplitude modulation screw plug and the air hole 16 produce a gap, the greater the rotation amplitude, the greater the gap, the longer the length of the atomized paint, and vice versa, when the gap is zero, until the spraying shape is circular.

[0033] The structure of the electric spray gun with amplitude modulation function provided by the embodiment of the utility model is introduced in detail, the principle and implementation mode of the utility model are described by applying specific examples in this paper, the above embodiment is only used to help understand the technical scheme disclosed by the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will be changed, and the above description should not be understood as the limitation of the utility model.

Claims

1. An electric spray gun structure with amplitude modulation function, comprising a gun body (1), a motor (2), a material pot (3), a trigger (4), a nozzle assembly (5), and a material needle (6); characterized in that: The gun body (1) is provided with channel 1 (7), channel 2 (8), and channel 3 (9), and an amplitude modulation component (10) is installed on the gun body (1); the nozzle component (5) is provided with a main atomization channel (11) and a secondary atomization channel (12), channel 2 (8) is communicated with the paint channel (25) in the gun body (1), and the channel 1 (7) is communicated with the air outlet of the motor (2) and the main atomization channel (11), respectively. The amplitude modulation component (10) controls the communication between channel 1 (7) and channel 3 (9), and adjusts the size of the communication gap, thereby realizing the control of the ventilation opening and closing of the secondary atomization channel (12) and the ventilation size adjustment.

2. The electric spray gun structure with amplitude modulation function according to claim 1, characterized in that: The amplitude modulation assembly (10) includes an amplitude modulation knob (13), an amplitude modulation plug (14), and an amplitude modulation screw seat (15). The amplitude modulation screw seat (15) is fixedly connected to the gun body (1), the amplitude modulation plug (14) and the amplitude modulation screw seat (15) are threadedly connected, and the amplitude modulation knob (13) is connected to the amplitude modulation screw seat (15); a vent hole (16) connecting channel 1 (7) and channel 3 (9) is provided in the gun body (1), and the amplitude modulation plug (14) rotates to control the opening and closing of the vent hole (16) and the size of the opening gap, thereby controlling the communication between channel 1 (7) and channel 3 (9) and the auxiliary atomization channel (12). The ventilation opening and closing and ventilation size adjustment of the auxiliary atomization channel (12) in the nozzle assembly (5) are controlled by rotating the amplitude modulation plug (14).

3. The electric spray gun structure with amplitude modulation function according to claim 1 or 2, characterized in that: The nozzle assembly (5) includes an atomizing cap (17), a fixing cap (18), a nozzle body (19), and a needle seat (20). The fixing cap (18) fixes the nozzle assembly (5) to the gun body (1). A secondary atomizing channel (12) is formed between the nozzle body (19) and the atomizing cap (17). A main atomizing channel (11) is formed between the atomizing cap (17) and the needle seat (20). Channel three (9) is in communication with the secondary atomizing channel (12) and the upper air hole (21) of the atomizing cap (17).

4. The electric spray gun structure with amplitude modulation function according to claim 2, characterized in that: An annular conical surface (22) is provided at the end of the amplitude modulation screw plug (14) corresponding to the vent hole (16).

5. The electric spray gun structure with amplitude modulation function according to claim 2, characterized in that: The channel three (9) and the channel one (7) are arranged on the same central axis.

6. The electric spray gun structure with amplitude modulation function according to claim 1, characterized in that: The gun body (1) is provided with a material pot air inlet hole (23), and the channel 1 (7) is communicated with the material pot (3) through the material pot air inlet hole (23).

7. The electric spray gun structure with amplitude modulation function according to claim 6, characterized in that: The end of the material pot air inlet hole (23) communicating with the material pot (3) is provided with a duckbill valve (24).

8. The electric spray gun structure with amplitude modulation function according to claim 1, characterized in that: The second channel (8) is connected to the material pot (3) through the material pipe (28).

9. The electric spray gun structure with amplitude modulation function according to claim 2, characterized in that: The amplitude modulation screw plug (14) is provided with a positioning piece (26) capable of abutting against the amplitude modulation screw seat (15).

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