Double-end wax injection nozzle

Abstract

The utility model discloses a double -end wax injection nozzle relates to the field of automobile manufacturing technology. Including two spray rods, the one end outer wall of two spray rods all is fixed with the spray head base, and the one end of two spray rods close to spray head base all is installed with the plug, and the other end of two spray rods all is installed with the nozzle cover, and the grafting screw rod is installed in the spray rod, and the alloy head nozzle is installed in the grafting screw rod. The utility model discloses through setting up two spray rods, and the other end of two spray rods all sets up two copper spray heads, and two copper spray heads are 90 degrees vertical distribution, in actual car body wax injection operation, can cover the right angle lap joint of car body sheet metal (such as the vertical connection seam of side wall and chassis, the corner gap of column and door plate etc. ) simultaneously, and one copper spray head can spray to the plane or gap of horizontal direction, and another copper spray head can spray to the vertical direction's facade or corner simultaneously. Compared with the single -direction spray head and need to adjust the angle repeatedly, or the design of ordinary double -end spray head direction is not fixed.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically a dual-headed wax injection nozzle. Background Technology

[0002] Body painting is a key process in vehicle manufacturing. Among them, spraying sealant wax on the overlapping parts of the body sheet metal is an important step to ensure the performance of the body. This not only enhances the body's sealing performance and improves its rust resistance, but also effectively reduces vibration and noise during driving. Currently, the industry mainly uses two types of nozzles for wax injection: air-mixed wax injection nozzles and airless wax injection nozzles. However, in actual production, different parts of the same vehicle body often require alternating use of these two wax injection methods (e.g., some areas require air-mixed spraying to ensure uniform coverage, while narrow gaps require airless spraying to ensure sufficient wax penetration). In this situation, operators need to frequently change the corresponding type of nozzle equipment, which not only interrupts the work process and increases operational complexity but also significantly reduces overall production efficiency. Therefore, this patent proposes a dual-head wax injection nozzle to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a dual-headed wax injection nozzle to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a double-headed wax injection nozzle, comprising two spray rods, each with a nozzle base fixed to the outer wall of one end, a plug installed at the end of each spray rod near the nozzle base, and a nozzle sleeve installed at the other end of each spray rod. A grafting screw is installed inside the spray rod, and an alloy head nozzle is installed inside the grafting screw. A copper nozzle is screwed to the outer wall of the nozzle sleeve, and the copper nozzle is located outside the alloy head nozzle.

[0005] Preferably, the included angle between the copper nozzles on the two spray bars is 1 degree, so that the spraying directions of the two copper nozzles are perpendicular to each other.

[0006] Preferably, the spray bar is a double-layered bar, with an inner channel for passing wax liquid and an outer channel for passing compressed air. The plug and grafting screw are fixed to the inner channel of the spray bar.

[0007] Preferably, the outer wall of the alloy head nozzle is provided with a spiral hole. Compressed air passes sequentially through the spray bar, nozzle sleeve, grafting screw, and through the external channel of the alloy head nozzle. The spiral hole on the alloy head nozzle is used to rotate the air into the copper nozzle, where it is mixed and atomized with the wax liquid.

[0008] Preferably, the spiral holes are evenly distributed at one end of the alloy head nozzle near the copper nozzle.

[0009] Preferably, the spray bar is sealed to the plug and the grafting screw, and the grafting screw is sealed to the alloy head nozzle to prevent leakage of wax and compressed air.

[0010] Compared with the prior art, the beneficial effects of this utility model are: By setting up two spray bars, each with two copper nozzles at its other end, and the two copper nozzles being vertically distributed at 90 degrees, the right-angle joints of the body panels can be covered simultaneously during actual car body waxing operations (such as the vertical connection seam between the side panel and the chassis, the corner gap between the pillar and the door panel, etc.). One copper nozzle can spray the horizontal plane or gap, while the other copper nozzle can simultaneously spray the vertical surface or corner. Compared to single-direction nozzles that require repeated angle adjustments or ordinary dual-head nozzles with inconsistent directions, the 90-degree angled structure can cover complex right-angled areas commonly found on car bodies in one go, reducing the number of times equipment needs to be moved and angles adjusted. This further improves the efficiency and coverage of waxing operations. In addition, the spray bar adopts a double-layer hollow bar structure, forming two independent channels inside: the inner layer is the wax channel, extending along the axis of the spray bar, used to transport wax; the outer layer is an annular air channel, surrounding the outer side of the inner wax channel, used to transport compressed air. The compressed air flows through the outer channel of the spray bar, the nozzle sleeve, and the grafting screw into the outer channel of the alloy head nozzle. The spiral hole on the alloy head nozzle rotates the air and flows into the direction of the copper nozzle to mix and atomize with the wax. It has an alternating function of mixed air and airless operation, reducing the time for changing nozzles. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the copper nozzle of this utility model; Figure 3 This is a schematic diagram showing the disassembled double-headed wax injection nozzle of this utility model; Figure 4 This is a partial schematic diagram of the spray bar of this utility model.

[0012] In the diagram: 1. Copper nozzle; 2. Alloy nozzle head; 3. Grafting screw; 4. Nozzle sleeve; 5. Spray bar; 6. Nozzle base; 7. Plug. Detailed Implementation

[0013] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Body painting is a crucial process in vehicle manufacturing. Applying sealant wax to the joints of the body panels is a vital step in ensuring vehicle performance. This not only enhances the body's sealing and rust resistance but also effectively reduces vibration and noise during driving. Currently, the industry primarily uses two types of nozzles for wax injection: air-mixed wax nozzles and airless wax nozzles. However, in actual production, different parts of the same body often require alternating use of these two waxing methods (e.g., some areas require air-mixed spraying to ensure even coverage, while narrow gaps require airless spraying to ensure sufficient wax penetration). In this situation, operators need to frequently change the corresponding type of nozzle equipment, which not only interrupts the work process and increases the complexity of operation, but also significantly reduces the overall production efficiency. The double-headed wax injection nozzle provided by this utility model is equipped with two spray bars 5, and each of the other ends of the two spray bars 5 is equipped with two copper nozzles 1. The two copper nozzles 1 are distributed vertically at 90 degrees. In actual car body wax injection operations, it can simultaneously cover the right-angle joints of the car body sheet metal (such as the vertical connection seam between the side panel and the chassis, the corner gap between the pillar and the door panel, etc.). One copper nozzle 1 can spray the horizontal plane or gap, and the other copper nozzle 1 can simultaneously spray the vertical surface or corner. Compared to single-direction nozzles that require repeated angle adjustments or ordinary dual-head nozzles with inconsistent directions, the 90-degree angled structure can cover complex right-angled areas commonly found on car bodies in one go, reducing the number of times equipment needs to be moved and angles adjusted. This further improves the efficiency and coverage of the waxing operation. In addition, the spray bar 5 adopts a double-layer hollow bar structure, which forms two independent channels inside: the inner layer is the wax channel, extending along the axis of the spray bar 5, used to transport wax; the outer layer is an annular air channel, surrounding the outer side of the inner wax channel, used to transport compressed air. The compressed air flows into the outer channel of the alloy head nozzle 2 through the outer channel of the spray bar 5, the nozzle sleeve 4, and the grafting screw 3. Then, the air is rotated by the spiral hole on the alloy head nozzle 2 and flows in the direction of the copper nozzle 1 to mix and atomize with the wax. It has an alternating function of mixed air and airless operation, reducing the time for changing nozzles.

[0015] like Figures 1-4 As shown, this utility model provides a technical solution: a double-headed wax injection nozzle, including two spray rods 5. A nozzle base 6 is fixed to the outer wall of one end of each spray rod 5. A plug 7 is installed at the end of each spray rod 5 near the nozzle base 6. A nozzle sleeve 4 is installed at the other end of each spray rod 5. A grafting screw 3 is installed inside the spray rod 5, and an alloy head nozzle 2 is installed inside the grafting screw 3. A copper nozzle 1 is screwed to the outer wall of the nozzle sleeve 4, and the copper nozzle 1 is located outside the alloy head nozzle 2. The included angle of the copper nozzles 1 on the two spray rods 5 is 90 degrees, making the spraying directions of the two copper nozzles 1 perpendicular to each other.

[0016] It is important to note that by setting up two spray bars 5, each with two copper nozzles 1 at its other end, and the two copper nozzles 1 being vertically distributed at a 90-degree angle, the waxing process can simultaneously cover the right-angle joints of the body panels (such as the vertical connection seam between the side panel and the chassis, the corner gap between the pillar and the door panel, etc.) during actual car body waxing operations. One copper nozzle 1 can spray the horizontal plane or gap, while the other copper nozzle 1 can simultaneously spray the vertical surface or corner. Compared to single-direction sprayers that require repeated angle adjustments, or ordinary dual-head sprayers with inconsistent directions, the 90-degree angled structure can cover common right-angled complex parts of the car body in one go, reducing the number of times the equipment needs to be moved and the angle adjusted, further improving the efficiency and coverage of the waxing operation.

[0017] like Figure 2 and Figure 4 As shown, the spray bar 5 is a double-layered bar, with an internal channel for passing wax liquid and an external channel for passing compressed air. The plug 7 and the grafting screw 3 are fixed to the internal channel of the spray bar 5.

[0018] It is important to note that the spray bar 5 employs a double-layer hollow bar structure, forming two independent channels internally: the inner layer is the wax channel, extending along the axis of the spray bar 5, used for conveying wax; the outer layer is an annular air channel, surrounding the inner wax channel, used for conveying compressed air. The walls of both channels are manufactured using a one-piece molding process, ensuring structural strength while preventing cross-flow between wax and compressed air during transport.

[0019] like Figure 3 As shown, the outer wall of the alloy head nozzle 2 has spiral holes. Compressed air passes sequentially through the spray bar 5, nozzle sleeve 4, grafting screw 3, and through the external channel of the alloy head nozzle 2. The spiral holes on the alloy head nozzle 2 rotate the air into the copper nozzle 1, where it mixes and atomizes with the wax liquid. The spiral holes are evenly distributed at the end of the alloy head nozzle 2 near the copper nozzle 1.

[0020] It is important to note that after compressed air flows into the outer channel of the alloy head nozzle 2 through the outer channel of the spray bar 5, the nozzle sleeve 4, and the grafting screw 3, the air is rotated by the spiral hole on the alloy head nozzle 2 and flows into the direction of the copper nozzle 1. Due to the inclined angle design of the spiral hole, the compressed air generates a tangential velocity along the circumference of the alloy head nozzle 2 when it flows out, forming a high-speed rotating airflow. The rotating airflow can form a larger contact area and more intense turbulence with the wax liquid, significantly improving the atomization effect, making the wax liquid coverage more uniform and the adhesion stronger after spraying.

[0021] like Figure 2 As shown, the spray bar 5 is sealed to the plug 7 and the grafting screw 3, and the grafting screw 3 is sealed to the alloy head nozzle 2 to prevent leakage of wax and compressed air.

[0022] It is important to note that the sealing connection method can be achieved through sealing rings, sealing tapes, or sealant, avoiding material waste and contamination of non-target areas of the vehicle body caused by wax leakage. On the other hand, it prevents pressure loss caused by compressed air leakage, ensuring stable air pressure entering the spiral hole and guaranteeing consistent atomization effect.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A double-headed wax injection nozzle, comprising two spray bars (5), characterized in that: A nozzle base (6) is fixed to the outer wall of one end of each of the two spray rods (5). A plug (7) is installed at the end of each of the two spray rods (5) near the nozzle base (6). A nozzle sleeve (4) is installed at the other end of each of the two spray rods (5). A grafting screw (3) is installed inside the spray rod (5). An alloy head nozzle (2) is installed inside the grafting screw (3). A copper nozzle (1) is screwed to the outer wall of the nozzle sleeve (4). The copper nozzle (1) is located outside the alloy head nozzle (2).

2. The dual-head wax injection nozzle according to claim 1, characterized in that: The copper nozzles (1) on the two spray bars (5) are angled at 90 degrees, so that the spraying directions of the two copper nozzles (1) are perpendicular to each other.

3. The dual-head wax injection nozzle according to claim 1, characterized in that: The spray bar (5) is a double-layered bar with an internal channel for passing wax liquid and an external channel for passing compressed air. The plug (7) and the grafting screw (3) are fixed to the internal channel of the spray bar (5).

4. The dual-head wax injection nozzle according to claim 1, characterized in that: The outer wall of the alloy head nozzle (2) is provided with a spiral hole. Compressed air passes through the spray bar (5), nozzle sleeve (4), grafting screw (3) in sequence, passes through the external channel of the alloy head nozzle (2), and uses the spiral hole on the alloy head nozzle (2) to rotate the air into the copper nozzle (1) to mix and atomize with the wax liquid.

5. The dual-head wax injection nozzle according to claim 4, characterized in that: The spiral holes are evenly distributed at one end of the alloy head nozzle (2) near the copper nozzle (1).

6. The dual-head wax injection nozzle according to claim 1, characterized in that: The spray bar (5) and plug (7), grafting screw (3), and grafting screw (3) and alloy head nozzle (2) are all connected by a sealed method to prevent the leakage of wax liquid and compressed air.

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