Anti-blocking nozzle structure of paint spraying machine

Abstract

The utility model discloses an anti-blocking nozzle structure of a paint spraying machine. The anti-blocking nozzle structure comprises a fixing pipe, the right end of the fixing pipe is fixedly connected with a spraying head, the outer side of the fixing pipe is fixedly sleeved with a fixing base, the outer side of the spraying head is fixedly sleeved with a connecting base, the connecting base makes contact with the fixing pipe, and the top of the connecting base is fixedly connected with a connecting block. According to the paint spraying device, paint can be sprayed out through the effect of the designed spraying head, under the effect of the air pump, external air can be sucked in, then the air can be injected into the connecting base to flow and is heated through the electric heating wire, the heated air can flow in the annular flow channel of the spraying head, and the paint can be sprayed out through the spraying head. And therefore, auxiliary heating can be conducted on flowing paint in the spray head, blockage caused by cold condensation in the paint spraying process is prevented, paint spraying smoothness is improved, air can be filtered through the effect of a filter screen, and blockage caused by dust entering an annular flow channel is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzles, in particular to an anti-blocking nozzle structure for a paint spraying machine. Background Art

[0002] A sprayer is a special coating equipment that uses spraying technology. The principle is to control the airflow to instantly push the air distribution reversing device to reverse, so that the piston of the pneumatic motor makes a stable and continuous reciprocating motion, pressurize the inhaled paint, and transport the paint to the spray gun of the sprayer through a high-pressure hose. The spray gun instantly atomizes the paint and releases it onto the surface of the object to be coated. During spraying, the paint needs to be sprayed out through a nozzle.

[0003] The utility model patent with the patent authorization announcement number CN217093977U discloses a spray nozzle, including: a device body and a spray head, the outer wall of the device body is installed with a bearing, the outer wall of the bearing is provided with a connecting tube, the inner wall of the connecting tube is fixedly connected with a connecting ring, the inner wall of the connecting ring is provided with a fan blade, a first rotating seal is installed between the device body and the connecting tube, and the device body is rotatably connected with the connecting tube through the bearing. The spray nozzle can use the connecting ring and the fan blade to convert the thrust of the high-speed flowing airflow into the power of the nozzle rotation so that the nozzle rotates and sprays, ensuring that the density difference of the coating at the same radius distance from the center of the circle is reduced, and improving the uniformity of the spraying. By setting the first torsion ring and the second torsion ring, it is convenient to provide a force point for the torsion between the nozzle and the connecting tube, which is convenient for the disassembly and assembly of the nozzle, and at the same time, the second torsion ring provides a counterweight to the nozzle, which improves the anti-interference ability of the nozzle when twisting.

[0004] In the above prior art, when the paint flows inside the nozzle during use, if it encounters cold, it will cause the paint to condense, and the solid matter will cause the nozzle to be blocked, affecting the spraying. In addition, after the nozzle is used, it is not convenient to clean the inside of the nozzle, and the residual material inside the nozzle will cause blockage during subsequent use. Therefore, improvement is needed. Utility Model Content

[0005] The utility model aims to provide a nozzle anti-clogging structure for a paint spraying machine, which solves the problem of insufficient nozzle anti-clogging effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a paint sprayer anti-clogging nozzle structure, comprising a fixed tube, a nozzle is fixedly connected to the right end of the fixed tube, a fixed seat is fixedly sleeved on the outer side of the fixed tube, a connecting seat is fixedly sleeved on the outer side of the nozzle, the connecting seat is in contact with the fixed tube, a connecting block is fixedly connected to the top of the connecting seat, a connecting ring is threadedly connected to the inside of the connecting block, a filter is arranged inside the connecting ring, a heating mechanism is arranged on the connecting seat, and a cleaning mechanism is arranged on the fixed seat.

[0007] Preferably, the heating mechanism includes an air pump, the bottom of the inner wall of the connection block is fixedly connected to the air pump, the top of the air pump is provided with an air inlet, the bottom of the air pump is provided with an exhaust port, the exhaust port is respectively fixedly connected to the connection block and the connection seat, the connection seat is provided with a heating wire inside, the connection seat is fixedly connected with a connection port inside, the connection port is fixedly connected to the nozzle, the nozzle is provided with an annular flow channel inside, and the annular flow channel is connected to the connection port. By designing the heating mechanism, the inside of the nozzle can be heated.

[0008] Preferably, an air outlet is fixedly connected to the lower end of the connecting seat, and the air outlet is communicated with the annular flow channel. By designing the air outlet, the gas inside the annular flow channel can be discharged through the air outlet.

[0009] Preferably, the cleaning mechanism includes a connecting pipe, the connecting pipe is slidably sleeved inside the fixed seat, a blocking block is fixedly connected to the bottom of the connecting pipe, the blocking block is in contact with the fixed seat, the blocking block is slidably connected to the fixed pipe, a drain port is provided inside the connecting pipe, the left and right ends of the connecting pipe are fixedly connected to sliders, the sliders are movably sleeved with balls, the sliders and balls are slidably connected to the fixed seat, the sliders are slidably sleeved with guide rods, the guide rods are fixedly connected to the fixed seat, and a spring is provided on the outside of the guide rods. By designing the cleaning mechanism, it is convenient to clean the inside of the nozzle.

[0010] Preferably, a slide groove is provided inside the fixing seat, and a ball is slidably connected inside the slide groove. The slide groove is designed so that the ball can slide along the slide groove.

[0011] Preferably, one end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the fixing seat. The spring is designed so that the force of the spring can act on the slider.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model can spray the paint to the outside by designing the function of the nozzle. Under the action of the air pump, the external air can be sucked in, and then the air can be injected into the connecting seat to flow and be heated by the electric heating wire. After heating, the gas will flow inside the annular flow channel of the nozzle, and then the flowing paint inside the nozzle can be auxiliary heated to prevent the paint from condensing and causing blockage during the spraying process, thereby improving the smoothness of the paint spraying. Moreover, the air can be filtered through the filter to prevent dust from entering the annular flow channel and causing blockage.

[0014] 2. The utility model designs the function of the connecting pipe. When the connecting pipe is pressed down, the block can be moved and separated from the fixed pipe through the movement of the connecting pipe. At this time, an opening appears in the fixed pipe. When water is injected into the connecting pipe, the water can be injected into the fixed pipe through the drain port. As the water flows in the fixed pipe and the nozzle, the nozzle can be cleaned to prevent the residual material inside after spraying from causing blockage during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A three-dimensional cross-sectional view of a local structure of a connecting seat;

[0017] Figure 3 For this utility model Figure 1 A front cross-sectional view of a local structure of a fixing seat;

[0018] Figure 4 For this utility model Figure 3 Enlarged view of point A.

[0019] In the figure: 1. fixed pipe; 2. nozzle; 3. fixed seat; 4. connecting seat; 5. connecting block; 6. connecting ring; 7. filter; 8. heating mechanism; 9. cleaning mechanism; 81. air pump; 82. air inlet; 83. exhaust port; 84. heating wire; 85. connecting port; 86. annular flow channel; 87. air outlet; 91. connecting pipe; 92. blocking block; 93. drain port; 94. slider; 95. ball; 96. guide rod; 97. spring; 98. slide groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 , Figure 2 , Figure 3A paint sprayer anti-clogging nozzle structure comprises a fixed tube 1, a nozzle 2 is fixedly connected to the right end of the fixed tube 1, a fixed seat 3 is fixedly sleeved on the outer side of the fixed tube 1, a connecting seat 4 is fixedly sleeved on the outer side of the nozzle 2, the connecting seat 4 is in contact with the fixed tube 1, a connecting block 5 is fixedly connected to the top of the connecting seat 4, a connecting ring 6 is threadedly connected to the inside of the connecting block 5, a filter screen 7 is arranged inside the connecting ring 6, a heating mechanism 8 is arranged on the connecting seat 4, and a cleaning mechanism 9 is arranged on the fixed seat 3.

[0022] See also Figure 1 , Figure 2 The heating mechanism 8 includes an air pump 81, the bottom of the inner wall of the connecting block 5 is fixedly connected to the air pump 81, the top of the air pump 81 is provided with an air inlet 82, the bottom of the air pump 81 is provided with an exhaust port 83, the exhaust port 83 is respectively fixedly connected to the connecting block 5 and the connecting seat 4, the interior of the connecting seat 4 is provided with an electric heating wire 84, the interior of the connecting seat 4 is fixedly connected with a connecting port 85, the connecting port 85 is fixedly connected to the nozzle 2, an annular flow channel 86 is opened inside the nozzle 2, the annular flow channel 86 is communicated with the connecting port 85, the lower end of the connecting seat 4 is fixedly connected with an air outlet 87, the air outlet 87 is communicated with the annular flow channel 86, by designing the air outlet 87, the gas inside the annular flow channel 86 can be discharged through the air outlet 87, and the interior of the nozzle 2 can be heated by designing the heating mechanism 8.

[0023] See also Figure 1 , Figure 3 , Figure 4 The cleaning mechanism 9 includes a connecting pipe 91, the connecting pipe 91 is slidably sleeved inside the fixed seat 3, a blocking block 92 is fixedly connected to the bottom of the connecting pipe 91, the blocking block 92 is in contact with the fixed seat 3, the blocking block 92 is slidably connected to the fixed pipe 1, a drain port 93 is provided inside the connecting pipe 91, the left and right ends of the connecting pipe 91 are fixedly connected with sliders 94, the inside of the slider 94 is movably sleeved with a ball 95, the slider 94 and the ball 95 are both slidably connected to the fixed seat 3, the fixed seat 3 is provided with a slide groove 98, the slide groove 98 is internally slidably connected with a ball 95, and the slide groove 98 is designed so that the ball 95 can slide along the slide groove 98. The internal sliding sleeve of the slider 94 is connected with a guide rod 96, and the guide rod 96 is fixedly connected to the fixed seat 3. A spring 97 is arranged on the outer side of the guide rod 96, and one end of the spring 97 is fixedly connected to the slider 94, and the other end of the spring 97 is fixedly connected to the fixed seat 3. The spring 97 is designed so that the force of the spring 97 can act on the slider 94. The cleaning mechanism 9 is designed to facilitate the cleaning of the inside of the nozzle 2.

[0024] The specific implementation process of the utility model is as follows: when in use, the paint can be sprayed to the outside through the action of the nozzle 2. During the spraying process, the air pump 81 works to inhale the external air, and then the air can be injected into the connection seat 4 to flow and heat it through the electric heating wire 84. After heating, the gas will flow inside the annular flow channel 86 of the nozzle 2, and then the paint flowing inside the nozzle 2 can be auxiliary heated to prevent the paint from condensing and causing blockage during the spraying process, thereby improving the smoothness of the paint spraying, and the filter 7 can filter the air to prevent dust from entering the annular flow channel 86 and causing blockage.

[0025] When it is necessary to clean the inside of the nozzle, the connecting tube 91 is pressed down, and the connecting tube 91 drives the slider 94 to slide along the guide rod 96, and the slider 94 squeezes the spring 97. At the same time, the slider 94 drives the ball 95 to slide along the slide groove 98. When the connecting tube 91 moves, it will drive the block 92 to move, so that the block 92 is separated from the fixed tube 1, and then water is supplied to the inside of the connecting tube 91. The water is input into the fixed tube 1 through the drain port 93. As the water flows in the fixed tube 1 and the nozzle 2, the nozzle can be cleaned to prevent the residual material inside after spraying from causing blockage during subsequent use.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nozzle anti-blocking structure for a paint spraying machine, comprising a fixed pipe (1), characterized in that: The right end of the fixed pipe (1) is fixedly connected to a nozzle (2); the outer side of the fixed pipe (1) is fixedly sleeved with a fixed seat (3); the outer side of the nozzle (2) is fixedly sleeved with a connecting seat (4); the connecting seat (4) is in contact with the fixed pipe (1); the top of the connecting seat (4) is fixedly connected to a connecting block (5); the interior of the connecting block (5) is connected to a connecting ring (6) by means of a thread; a filter screen (7) is arranged inside the connecting ring (6); a heating mechanism (8) is arranged on the connecting seat (4); and a cleaning mechanism (9) is arranged on the fixed seat (3).

2. The anti-blocking nozzle structure of a paint spraying machine according to claim 1, characterized in that: The heating mechanism (8) comprises an air pump (81), the bottom of the inner wall of the connecting block (5) is fixedly connected to the air pump (81), the top of the air pump (81) is provided with an air inlet (82), the bottom of the air pump (81) is provided with an exhaust port (83), the exhaust port (83) is respectively fixedly connected to the connecting block (5) and the connecting seat (4), the interior of the connecting seat (4) is provided with an electric heating wire (84), the interior of the connecting seat (4) is fixedly connected with a connecting port (85), the connecting port (85) is fixedly connected to the nozzle (2), the interior of the nozzle (2) is provided with an annular flow channel (86), and the annular flow channel (86) is connected to the connecting port (85).

3. The anti-blocking nozzle structure of a paint spraying machine according to claim 1, characterized in that: An air outlet (87) is fixedly connected to the interior of the lower end of the connecting seat (4), and the air outlet (87) is in communication with the annular flow channel (86).

4. The anti-blocking nozzle structure of a paint spraying machine according to claim 1, characterized in that: The cleaning mechanism (9) comprises a connecting pipe (91), the connecting pipe (91) is slidably sleeved inside the fixed seat (3), a blocking block (92) is fixedly connected to the bottom of the connecting pipe (91), the blocking block (92) is in contact with the fixed seat (3), the blocking block (92) is slidably connected to the fixed pipe (1), a drain outlet (93) is provided inside the connecting pipe (91), the left and right ends of the connecting pipe (91) are fixedly connected to sliders (94), the inside of the slider (94) is movably sleeved with a ball (95), the slider (94) and the ball (95) are both slidably connected to the fixed seat (3), the inside of the slider (94) is slidably sleeved with a guide rod (96), the guide rod (96) is fixedly connected to the fixed seat (3), and a spring (97) is provided on the outside of the guide rod (96).

5. The anti-clogging nozzle structure for a paint spraying machine according to claim 1, characterized in that: A sliding groove (98) is provided inside the fixing seat (3), and a ball (95) is slidably connected inside the sliding groove (98).

6. The anti-blocking nozzle structure of a paint spraying machine according to claim 4, characterized in that: One end of the spring (97) is fixedly connected to the slider (94), and the other end of the spring (97) is fixedly connected to the fixing seat (3).

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