Glue nozzle for reducing automobile coating glue bubbles

Abstract

The invention discloses a glue nozzle for reducing automobile coating glue bubbles. The device comprises a cylindrical hollow main rod, the input end of the main rod is in threaded connection with a glue gun, the output end of the main rod is connected with a glue outlet nozzle with a notch in a flat duck tongue shape, and the top end of the glue outlet nozzle is provided with multi-shape notch parts such as a triangular flat nozzle notch part, an arc-shaped flat nozzle notch part and a straight flat nozzle notch part. Auxiliary parts such as a locking sleeve, a rotating sleeve and a spring are arranged on the periphery of the main rod; a guide rod is arranged on the side wall of the glue outlet nozzle for auxiliary positioning. According to the glue nozzle, the notch part is used for changing the pressure of the glue outlet, and the duck tongue is combined for guiding flow, so that glue is better attached to a metal plate, air entering is reduced, and glue bubbles are effectively reduced. Meanwhile, multi-directional positioning can be achieved by means of the guide rod, the rotating sleeve and the like, nozzle replacement time is shortened, worker efficiency is improved, glue waste is reduced, and automobile coating quality improvement is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of automobile coating technology, in particular to a glue nozzle for reducing automobile coating glue bubbles. Background Art

[0002] The automobile painting process plays a vital role in the automobile manufacturing process. It is not only related to the appearance of the automobile, but also has a direct impact on the key performance of the automobile such as corrosion resistance and sealing. Among the many painting processes, gluing is an indispensable part. The gluing operation aims to achieve functions such as sealing the gaps in the car body and fixing parts by applying glue, so as to ensure the integrity of the overall structure of the car and good performance. For example, gluing at the joints between the doors, windows and the car body can effectively prevent the intrusion of external substances such as rain and dust, while enhancing the stability of the connection between the components.

[0003] However, for a long time, traditional glue nozzles have exposed some prominent problems in the application of automotive coating glue. Among them, the generation of glue bubbles is particularly common and difficult. During the glue application process, after the glue is squeezed out of the glue nozzle, due to the limitations of the glue nozzle structure and the unsatisfactory state of the glue outflow, air is easily mixed into the glue, thereby forming glue bubbles. These glue bubbles will cause the surface of the rubber strip to be uneven and incomplete, which not only affects the aesthetics of the car's appearance, but also greatly reduces the bonding strength between the rubber strip and the sheet metal. In severe cases, it may also damage the sealing of the car, posing a hidden danger to the overall quality of the car. In addition, the positioning accuracy and flexibility of traditional glue nozzles during operation are also poor. Faced with the complex shapes and angle requirements of different parts of the car, it is often difficult to accurately apply the glue to the appropriate position. Different types of glue nozzles need to be frequently replaced to adapt to different parts, which undoubtedly increases the complexity of the operation and reduces work efficiency. At the same time, it is also easy to cause waste of glue during the replacement process.

[0004] In view of the many problems existing in the traditional glue nozzle in the process of automobile painting and gluing, there is an urgent need for a new type of glue nozzle that can effectively solve these problems. The industry has been seeking to optimize the gluing process by improving the structure of the glue nozzle and other means to improve the quality and efficiency of automobile painting. In this context, the present invention focuses on key goals such as reducing glue bubbles, improving operational stability and flexibility, and reducing glue waste. Through the careful design of the glue nozzle, it aims to overcome the shortcomings of the existing glue nozzles and provide a more advantageous solution for the automobile painting and gluing process that can better meet actual production needs, thereby promoting the further development of the painting process in the automobile manufacturing industry. Summary of the invention

[0005] The present invention aims to design a new type of glue nozzle for automobile painting. Through innovative improvements to the glue nozzle structure, the generation of glue bubbles can be effectively reduced, while the stability and flexibility of the glue nozzle during operation can be improved, the work efficiency of workers can be improved, and the waste of glue liquid can be reduced, thereby optimizing the overall quality and effect of the automobile painting process.

[0006] Invention technical solution

[0007] Overall structure design of nozzle

[0008] Main rod part: The nozzle contains a cylindrical hollow main rod, whose main function is to transport glue. The input end of the main rod is threadedly connected to the glue gun, and a connecting rod for connecting the glue gun can also be provided at the input end to ensure that the glue can be smoothly transmitted from the glue gun to the nozzle, while ensuring the stability of the connection to prevent glue leakage.

[0009] Glue outlet part: The output end of the main rod is connected to a glue outlet for discharging glue, and the glue outlet is in the shape of a flat duck tongue with a notch. This unique shape design plays an important role in the flow of glue and the subsequent bonding of glue strips to sheet metal. There are multi-shaped cutouts at the top of the glue outlet to reduce bubbles, including the following forms:

[0010] Triangular flat mouth cutout: This cutout is triangular and located at the top of the glue outlet nozzle. Its shape can change the pressure distribution when the glue flows out, so that the glue can better fit the sheet metal surface along the cutout and duck tongue shape, reducing the mixing of air to form glue bubbles.

[0011] Arc-shaped flat-mouth cutout: The arc-shaped flat-mouth cutout appears at the top of the glue outlet. When the glue flows out from here, a hollow channel will be formed inside the rubber strip because the glue outlet is arc-shaped. After a part of the upper part is cut off, the outlet pressure of the rubber strip is different. The rubber strip on the cut side tilts downward under the action of pressure, which makes the rubber strip fit the sheet metal better, effectively reducing the entry of air and achieving the purpose of reducing rubber bubbles.

[0012] Straight flat-mouth incision: The straight flat-mouth incision at the top also changes the pressure state of the glue outlet and the diversion of the duck tongue shape, so that the glue can fit the sheet metal closely after flowing out, avoid air mixing, make the rubber strip fuller, and reduce the generation of glue bubbles.

[0013] Auxiliary positioning and adjustment components:

[0014] A guide rod is laterally provided on the top side wall of the glue nozzle to assist in positioning the glue nozzle. When the glue nozzle is close to the glue application area, the guide rod can play a preliminary guiding and positioning role, assisting the operator to accurately control the glue nozzle position.

[0015] The outer circumference of the main rod is provided with a locking sleeve and a rotating sleeve. The outer circumference of the main rod near the locking sleeve and the rotating sleeve is provided with a spring. The end of the rotating sleeve is provided with a fixed sleeve, which is connected to the glue nozzle. Through the rotation of the rotating sleeve and the elastic adjustment of the spring, combined with the guide rod, the multi-directional positioning and angle adjustment of the glue nozzle can be achieved, so that it can adapt to the glue application needs of different parts of the car and reduce the need to replace the nozzle.

[0016] How each component works together

[0017] In terms of glue delivery, the glue gun pushes the glue to the glue nozzle through the main rod. The stable threaded connection between the main rod and the glue gun and the auxiliary connection of the connecting rod ensure the stability and continuity of the glue delivery.

[0018] To achieve the function of reducing glue bubbles, the different shapes of cutouts in the glue nozzle change the pressure distribution at the glue outlet when the glue flows out, and use the diversion effect of the duck tongue shape to make the glue fit the sheet metal surface better, reducing the chance of air entering the glue to form bubbles, making the glue strip look fuller and of better quality.

[0019] In terms of operational positioning and flexibility, the guide rod guides the glue nozzle close to the gluing area, and the rotating sleeve can rotate within a certain range. Combined with the elastic adjustment of the spring, the glue nozzle can be adjusted in all directions according to the shape, angle and other requirements of different parts of the car. The operator can complete the gluing operation at different positions without frequently changing the nozzle, which improves work efficiency and reduces the waste of glue caused by changing the nozzle.

[0020] Advantageous Effects of the Invention

[0021] Reduce glue bubbles and improve painting quality: Through the special cutout at the top of the glue nozzle and the optimized treatment of the glue liquid in the duck tongue shape, the generation of glue bubbles during the automobile painting process is effectively reduced, making the glue strip and the sheet metal fit more closely and the appearance fuller, greatly improving the overall quality and aesthetics of the automobile painting, and ensuring the key performance of the automobile such as sealing.

[0022] Improve operational stability and flexibility: With the help of the positioning and adjustment mechanism composed of guide rods, rotating sleeves and other components, the glue nozzle can achieve multi-directional precise positioning during operation, and can stably apply glue to different parts of the car, which improves operational stability; and can flexibly adapt to various complex gluing scenarios, reducing the tedious operation of replacing nozzles and improving operational flexibility.

[0023] Improve work efficiency and reduce waste: Since the glue nozzle can be positioned in multiple directions, there is no need to frequently change the nozzle to adapt to the gluing of different parts, which saves workers' time in changing nozzles and improves overall work efficiency. At the same time, reducing the number of nozzle changes will correspondingly reduce the waste caused by glue residue and dripping during the replacement process, realize more rational use of glue resources and reduce production costs.

[0024] In summary, the glue nozzle of the present invention optimizes the automobile coating glue application process in multiple aspects through innovative structural design, and has significant practical value and positive promotion significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 Schematic diagram of a straight flat mouth cutout nozzle of an embodiment of the present invention;

[0027] Figure 2 Schematic diagram of the arc-shaped flat-mouth cut-out nozzle of an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of a triangular flat mouth cut-out nozzle according to an embodiment of the present invention;

[0029] Figure 4 Schematic diagram of a straight flat mouth cutout nozzle according to an embodiment of the present invention.

[0030] The markings in the figure are:

[0031] 1. Main rod; 2. Glue outlet; 201. Triangular flat mouth cutout; 202. Arc flat mouth cutout; 203. Straight flat mouth cutout; 3. Guide rod; 4. Connecting rod; 5. Locking sleeve; 6. Spring; 7. Rotating sleeve; 8. Fixed sleeve; DETAILED DESCRIPTION

[0032] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0033] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0034] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0035] Embodiment 1:

[0036] Combined with reference Figure 3

[0037] Implementation Method of Triangular Flat Mouth Cutout

[0038] Structural assembly

[0039] First, prepare a cylindrical hollow main rod 1, and firmly connect its input end to the glue gun through a thread to ensure a tight connection to prevent glue leakage. A connecting rod 4 can be installed at the input end of the main rod 1 to better adapt to different glue gun structures and enhance the stability of the connection.

[0040] Next, the glue nozzle 2 with a triangular flat mouth cutout 201 is installed at the output end of the main rod 1. The glue nozzle 2 presents a notched flat duck tongue shape, and its triangular flat mouth cutout 201 is located at the top. The shape design of the cutout helps to reduce the generation of bubbles when the glue flows out later.

[0041] Then, a locking sleeve 5 is put on the outer circumference of the main rod 1, and then a spring 6 is put on the main rod 1 near the locking sleeve 5, and then a rotating sleeve 7 is put on so that the spring 6 is between the locking sleeve 5 and the rotating sleeve 7 to play a role in elastic adjustment. A fixed sleeve 8 is installed at the end of the rotating sleeve 7, and the fixed sleeve 8 is connected to the glue nozzle 2 to ensure the stability of the glue nozzle 2. Finally, a guide rod 3 is installed horizontally on the top side wall of the glue nozzle 2, and the guide rod 3 is set on the side wall of the rotating sleeve 7 to assist in positioning the glue nozzle 2, so as to facilitate accurate control of the glue discharge direction and position during the coating operation.

[0042] Working principle and effect

[0043] During the glue application operation for automobile painting, the glue is transported to the glue outlet 2 through the main rod 1. Since the triangular flat mouth cutout 201 of the glue outlet 2 faces upward and its duck tongue shape can guide the glue, the glue will adhere to the sheet metal surface along the cutout and the duck tongue shape during the outflow process. At this time, because the special shape of the cutout changes the pressure distribution of the glue outlet, the pressure at different positions is different, so that the glue can be more closely attached to the sheet metal, reducing the possibility of air mixing into the glue to form bubbles, and finally making the surface of the formed rubber strip fuller, effectively reducing the appearance of automobile painting glue bubbles.

[0044] Embodiment 2:

[0045] Combined with reference Figure 2

[0046] Implementation Method of Arc-Shaped Flat Mouth Cutout

[0047] Structural assembly

[0048] Similarly, first select the main rod 1, connect its input end to the glue gun by threading, and install the connecting rod 4 at the input end to ensure a reliable connection.

[0049] Then, the glue outlet nozzle 2 with an arc-shaped flat mouth cutout 202 at the top is installed at the output end of the main rod 1, and the glue outlet nozzle 2 maintains a notched flat duck tongue shape. The design of this arc-shaped flat mouth cutout 202 is the key feature of this embodiment.

[0050] In order, the locking sleeve 5, spring 6 and rotating sleeve 7 are sequentially sleeved on the main rod 1, so that the spring 6 is located between the locking sleeve 5 and the rotating sleeve 7 to provide the necessary elastic adjustment function. The glue nozzle 2 is fixed by the fixing sleeve 8 at the end of the rotating sleeve 7, and the guide rod 3 is transversely installed on the top side wall of the glue nozzle 2 so that it is located on the side wall of the rotating sleeve 7, so as to accurately control the position of the glue nozzle 2 during operation.

[0051] Working principle and effect

[0052] When the glue gun pushes the glue liquid through the main rod 1 to the glue outlet 2, the glue liquid reaches the arc-shaped flat mouth cutout 202 and begins to flow out. Since the glue outlet is arc-shaped, a hollow channel will be formed inside the rubber strip after the glue liquid flows out. At the same time, a part of the arc-shaped cutout is cut off, resulting in different pressures at different positions of the rubber strip outlet. Under the action of this pressure difference, the rubber strip on one side that has been cut off will tilt downward under the pressure, thereby better fitting the sheet metal surface and minimizing the air from entering the glue liquid, thereby achieving the purpose of reducing the generation of glue bubbles during the automobile painting process, making the molding effect of the rubber strip after painting better, and the surface smoother and fuller.

[0053] Embodiment three:

[0054] Combined with reference Figure 1as well as Figure 4

[0055] Implementation of the straight flat mouth cutout

[0056] Structural assembly

[0057] The first step is to take a cylindrical hollow main rod 1, connect its input end to the glue gun threadedly, and install a connecting rod 4 to improve the connection structure and ensure the stability of glue delivery.

[0058] In the second step, the glue outlet nozzle 2 with a straight flat mouth cutout 203 at the top is connected to the output end of the main rod 1. The glue outlet nozzle 2 is still in the shape of a notched flat duck tongue. The straight flat mouth cutout 203 serves as the key part for the glue to flow out and reduce bubbles.

[0059] The third step is to sequentially sleeve the locking sleeve 5, spring 6 and rotating sleeve 7 on the outer circumference of the main rod 1, so that the spring 6 is located between the locking sleeve 5 and the rotating sleeve 7, providing a certain elastic adjustment capability for the entire structure. Then, the fixed sleeve 8 at the end of the rotating sleeve 7 is connected to the glue nozzle 2 to ensure the stable installation of the glue nozzle 2. Finally, the guide rod 3 is installed horizontally on the top side wall of the glue nozzle 2, and it is located on the side wall of the rotating sleeve 7, so as to facilitate the precise positioning of the glue nozzle 2 during the automobile painting operation.

[0060] Working principle and effect

[0061] When applying glue to a car, the glue is transported to the glue outlet 2 through the main rod 1 and flows out from the straight flat mouth cutout 203. The duck tongue shape of the glue outlet 2 and the straight flat mouth cutout 203 change the pressure state at the glue outlet, so that the glue can fit the sheet metal surface better during the outflow process, reducing the air from mixing into the glue to generate bubbles. In addition, this structure can guide the glue to form a glue strip with a full surface, effectively reducing the probability of glue bubbles during the entire coating process, and improving the quality and appearance of the car coating.

[0062] Through the above three different embodiments, the respective characteristics of the triangular flat mouth cutout portion, the arc-shaped flat mouth cutout portion and the straight flat mouth cutout portion are utilized respectively, and the invention purpose of reducing automobile paint bubbles is achieved from different angles, providing a better quality glue nozzle selection for the automobile painting process.

[0063] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A glue nozzle for reducing glue bubbles in automobile painting, comprising a cylindrical hollow main rod (1), the main rod (1) being used for conveying glue liquid, the input end of the main rod (1) being threadedly connected to a glue gun, the output end of the main rod (1) being connected to a glue outlet nozzle (2) for outputting glue liquid, the top side wall of the glue outlet nozzle (2) being laterally provided with a guide rod (3) for assisting in positioning the glue outlet nozzle (2), characterized in that: The glue outlet nozzles (2) are all in the shape of a flat duck tongue with a notch, and the top of the glue outlet nozzles (2) is provided with a multi-shaped cutout portion for reducing bubbles.

2. A nozzle for reducing automobile paint bubbles according to claim 1, characterized in that: The multi-shaped cutout portion is a triangular flat mouth cutout portion (201) opened at the top end of the glue outlet nozzle (2).

3. The nozzle for reducing automobile paint bubbles according to claim 1, characterized in that: The multi-shaped cutout portion is an arc-shaped flat-mouth cutout portion (202) opened at the top end of the glue outlet nozzle (2).

4. The nozzle for reducing automobile paint bubbles according to claim 1, characterized in that: The multi-shaped cutout portion is a straight flat mouth cutout portion (203) opened on the glue outlet nozzle (2).

5. The nozzle for reducing automobile paint bubbles according to claim 1, characterized in that: The outer circumference of the main rod (1) is sleeved with a locking sleeve (5) and a rotating sleeve (7); the outer circumference of the main rod (1) at a position between the locking sleeve (5) and the rotating sleeve (7) is sleeved with a spring (6); the end of the rotating sleeve (7) is provided with a fixing sleeve (8), and the fixing sleeve (8) is connected to the glue outlet nozzle (2).

6. The nozzle for reducing automobile paint bubbles according to claim 1, characterized in that: The guide rod (3) is arranged on the side wall of the rotating sleeve (7).

7. The nozzle for reducing automobile paint bubbles according to claim 1, characterized in that: The input end of the main rod (1) is also provided with a connecting rod (4) for connecting a glue gun.

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