Airflow glue blowing nozzle

Abstract

The utility model relates to the technical field of glue blowing nozzles, in particular to an airflow glue blowing nozzle which solves the technical problems that glue liquid is easy to remain in a spiral channel of an existing glue blowing nozzle, the glue liquid is relatively difficult to clean, and the spiral channel is easy to block by the glue liquid, the airflow glue blowing nozzle comprises a nozzle body, and a nut is sleeved on the outer surface of the nozzle body. The upper end of the nut is connected with a connecting piece, a flow guide block is arranged in the nozzle body, a glue inlet is formed in one side of the flow guide block, a first air channel is formed in the flow guide block, a glue outlet is formed in one side of the nozzle body, a second air channel is formed in the nozzle body, an air inlet is formed in the outer surface of the connecting piece, and an air cavity is formed in one end of the connecting piece. Air enters the connecting piece through the air inlet, enters the first air channel and the second air channel through the air cavity and then is sprayed out of the second air channel, and after being sprayed out, the air flow blows a glue solution discharged from the glue outlet to enable the glue solution to be spirally sprayed out, so that the glue solution can be prevented from being blocked in the nozzle.

Description

Technical Field

[0001] The utility model relates to the technical field of glue blowing nozzles, in particular to an airflow glue blowing nozzle. Background Art

[0002] The glue blowing nozzle is a key component for achieving precise glue coating or spraying operations. Glue enters the nozzle through a specific channel, and compressed air also enters from the corresponding airway. In the mixing area inside the nozzle, the two are fully in contact and produce a strong interaction, so that the glue is broken into tiny particles and sprayed out with the airflow. Glue blowing nozzles are widely used in industrial production. They play a vital role in the bonding, sealing and other processes of products. They can achieve efficient, accurate and uniform glue coating effects, improve production efficiency and product quality.

[0003] However, the existing glue blowing nozzle has a spiral channel inside, so that the glue moves along a certain spiral trajectory when leaving the glue gun, thereby forming a spiral glue discharge shape. However, glue is easily left in the spiral channel, which is relatively difficult to clean. In addition, if there are impurities in the glue or the properties of the glue itself change, the spiral channel is more likely to be blocked. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an airflow glue blowing nozzle, which can solve the problem of existing glue blowing nozzles, that glue is easily left in the spiral channel, which is relatively difficult to clean, and that the spiral channel is more likely to be blocked if there are impurities in the glue or the properties of the glue itself change. The utility model can rely on the action of airflow to perform spiral glue discharge to avoid glue blockage in the nozzle, and at the same time can accurately control the shape and characteristics of the spiral by adjusting parameters such as the size and direction of the airflow, and has greater adaptability.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an airflow glue blowing nozzle, comprising a nozzle body, a nut is sleeved on the outer surface of the nozzle body, a connecting piece is connected to the upper end of the nut, a guide block is arranged inside the nozzle body, a glue inlet is opened on one side of the guide block, a first air channel is opened inside the guide block, a glue outlet is opened on one side of the nozzle body, a second air channel is arranged inside the nozzle body, an air inlet is opened on the outer surface of the connecting piece, and an air cavity is arranged at one end of the connecting piece;

[0006] A pressure pump is arranged inside the connecting piece, one end of the pressure pump is connected with a rubber discharge hose, a rubber cavity is arranged inside the connecting piece, and the end of the rubber discharge hose is connected with the rubber cavity.

[0007] Through the above technical scheme, the pressure pump controls the discharge of the glue liquid inside the glue discharge pipe, and the glue liquid passes through the glue cavity and enters the interior of the guide block through the glue inlet. The glue liquid inside the guide block enters the nozzle body and is discharged through the glue outlet. In this process, the gas enters the interior of the connecting part through the air inlet, and enters the first air channel and the second air channel respectively through the air cavity, and then is ejected from the second air channel. After the airflow is ejected, it will blow the glue liquid, causing the glue liquid to be ejected in a spiral shape.

[0008] Furthermore, the outer diameter of the nut is greater than the outer diameter of the nozzle body, and the diameter of the upper end of the nozzle body is greater than the diameter of the lower end of the nozzle body.

[0009] Through the above technical solution, it is convenient to install the nozzle body inside the nut, and the nozzle body can be protected by the nut, while preventing the nozzle body and the nut from being separated from each other.

[0010] Furthermore, the connection between the nut and the connecting piece is a threaded connection, and the height of the nut is greater than the height of the nozzle body.

[0011] Through the above technical solution, the nut can be quickly connected to the connecting piece by rotating it, thereby facilitating the rapid assembly of the nozzle body connected to the nut.

[0012] Furthermore, the lower end of the glue cavity is connected to the glue inlet, and the diameter of the glue cavity is greater than the diameter of the glue inlet.

[0013] Through the above technical solution, the glue liquid inside the glue discharge pipe can enter the interior of the guide block through the glue inlet after passing through the glue cavity. Since the diameter of the glue cavity is larger than the diameter of the glue inlet, the glue liquid can enter the interior of the guide block continuously and stably.

[0014] Furthermore, a sealing cavity is provided at the lower end of the connecting piece, and the sealing cavity is in a circular ring structure.

[0015] Through the above technical solution, a sealing ring can be arranged inside the sealing cavity to seal the connection between the connecting piece and the guide block, thereby avoiding glue leakage at the connection between the connecting piece and the guide block.

[0016] Furthermore, the first air passages are distributed at equal angles with respect to the center of the guide block, and the second air passages are distributed at equal angles with respect to the center of the nozzle body.

[0017] Through the above technical solution, multiple first air channels and second air channels are provided, and both the first air channels and the second air channels are distributed around the glue outlet, so that the gas is discharged from the second air channel to blow the glue liquid discharged from the glue outlet.

[0018] Furthermore, the first airway corresponds to the second airway one by one, and the first airway and the second airway are in an inclined structure.

[0019] Through the above technical solution, the first air channel and the second air channel are inclined structures, which can better guide the airflow to form a spiral motion, so that the glue liquid can be discharged in a spiral shape more obviously, thereby improving the molding quality of the spiral.

[0020] Furthermore, the air inlets are distributed at equal angles with respect to the center of the connecting piece, and the air inlets are connected to the air cavity.

[0021] Through the above technical solution, the air inlet can be connected to an external air source, and the size, direction and other parameters of the airflow can be adjusted by the air source to accurately control the shape and characteristics of the spiral.

[0022] Compared with the prior art, the utility model provides an airflow glue blowing nozzle, which has the following beneficial effects:

[0023] In the utility model, gas enters into the interior of the connector through the air inlet, and enters into the interior of the first air channel and the second air channel respectively through the air cavity, and then is ejected from the second air channel. After being ejected, the air flow will blow the glue liquid discharged from the glue outlet, so that the glue liquid is ejected in a spiral shape. The spiral glue discharge is carried out by relying on the action of the air flow, which can avoid the glue liquid from being blocked in the nozzle, and the air inlet can be connected to an external air source. By adjusting the size, direction and other parameters of the air flow through the air source, the shape and characteristics of the spiral can be accurately controlled, and some unique spiral glue discharge shapes with specific characteristics can be produced, thereby increasing the process diversity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a cross-sectional structural schematic diagram of the nut and the connecting piece in the utility model;

[0026] Figure 3 It is a schematic diagram of the cross-sectional connection structure between the nozzle body and the nut in the utility model;

[0027] Figure 4 It is a structural schematic diagram of the nut in the utility model;

[0028] Figure 5 This is a schematic diagram of the connection structure between the nozzle body and the nut in the utility model;

[0029] Figure 6 It is a structural schematic diagram of the nozzle body in the utility model;

[0030] Figure 7 It is a structural schematic diagram of the guide block in the utility model.

[0031] Among them: 1. Nozzle body; 2. Nut; 3. Connector; 4. Guide block; 5. Glue inlet; 6. First air channel; 7. Second air channel; 8. Glue outlet; 9. Air inlet; 10. Air cavity; 11. Sealing cavity; 12. Glue cavity; 13. Glue discharge hose; 14. Pressure pump. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figure 1-Figure 7 The utility model provides a technical solution: an airflow glue blowing nozzle, comprising a nozzle body 1, a nut 2 is sleeved on the outer surface of the nozzle body 1, a connecting piece 3 is connected to the upper end of the nut 2, a guide block 4 is arranged inside the nozzle body 1, a glue inlet 5 is opened on one side of the guide block 4, a first air channel 6 is opened inside the guide block 4, a glue outlet 8 is opened on one side of the nozzle body 1, a second air channel 7 is arranged inside the nozzle body 1, an air inlet 9 is opened on the outer surface of the connecting piece 3, and an air cavity 10 is arranged at one end of the connecting piece 3;

[0034] See also Figure 1-Figure 3 A pressure pump 14 is arranged inside the connecting piece 3 , one end of the pressure pump 14 is connected to a rubber discharge hose 13 , a rubber cavity 12 is arranged inside the connecting piece 3 , and the end of the rubber discharge hose 13 is connected to the rubber cavity 12 .

[0035] It is worth mentioning that: the pressure pump 14 controls the discharge of the glue liquid inside the glue discharge pipe 13. The glue liquid passes through the glue cavity 12 and enters the inside of the guide block 4 through the glue inlet 5. The glue liquid inside the guide block 4 enters the nozzle body 1 and is discharged through the glue outlet 8. In this process, the gas enters the inside of the connecting part 3 through the air inlet 9, and enters the first air channel 6 and the second air channel 7 respectively through the air cavity 10, and then is ejected from the second air channel 7. After the airflow is ejected, the glue liquid will be blown, so that the glue liquid is ejected in a spiral shape. The spiral glue discharge is carried out by relying on the action of the airflow, which can avoid the glue liquid from being blocked in the nozzle.

[0036] See also Figure 1-Figure 3 The outer diameter of the nut 2 is larger than the outer diameter of the nozzle body 1, the diameter of the upper end of the nozzle body 1 is larger than the diameter of the lower end of the nozzle body 1, the connection method between the nut 2 and the connecting piece 3 is a threaded connection, and the height of the nut 2 is larger than the height of the nozzle body 1.

[0037] The function of the nut 2 is that the nut 2 can be quickly connected to the connecting piece 3 by rotating it, so as to facilitate the rapid assembly of the nozzle body 1 connected to the nut 2, and after the nozzle body 1 is installed inside the nut 2, the nozzle body 1 can be protected by the nut 2, and at the same time, the nozzle body 1 and the nut 2 can be prevented from detaching from each other.

[0038] See also Figure 1-Figure 3 The lower end of the glue cavity 12 is connected to the glue inlet 5 , and the diameter of the glue cavity 12 is greater than the diameter of the glue inlet 5 .

[0039] It should be noted that: since the diameter of the glue cavity 12 is greater than the diameter of the glue inlet 5 , after the glue liquid in the glue discharge pipe 13 passes through the glue cavity 12 , it can enter the interior of the guide block 4 through the glue inlet 5 in an uninterrupted and stable manner.

[0040] See also Figure 2 A sealing cavity 11 is provided at the lower end of the connecting member 3, and the sealing cavity 11 is in a circular ring structure.

[0041] It is worth mentioning that a sealing ring may be provided inside the sealing cavity 11 to seal the connection between the connecting piece 3 and the guide block 4 to avoid glue leakage at the connection between the connecting piece 3 and the guide block 4 .

[0042] See also Figure 1-Figure 6 The first air channel 6 is distributed at equal angles with respect to the center of the guide block 4, the second air channel 7 is distributed at equal angles with respect to the center of the nozzle body 1, the first air channel 6 corresponds to the second air channel 7 one by one, the first air channel 6 and the second air channel 7 are in an inclined structure, the air inlet 9 is distributed at equal angles with respect to the center of the connecting piece 3, and the air inlet 9 is connected to the air cavity 10;

[0043] It should be noted that: multiple first air channels 6 and second air channels 7 are provided, and the first air channels 6 and second air channels 7 are distributed around the glue outlet 8, and the first air channels 6 and second air channels 7 are inclined structures, which can better guide the airflow to form a spiral motion, so that the glue liquid can be more obviously spirally discharged, thereby improving the molding quality of the spiral, and the air inlet 9 can be connected to an external air source, and the size, direction and other parameters of the airflow can be adjusted by the air source, so as to accurately control the shape and characteristics of the spiral.

[0044] 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. An airflow glue blowing nozzle, comprising a nozzle body (1), characterized in that: The outer surface of the nozzle body (1) is sleeved with a nut (2), the upper end of the nut (2) is connected to a connecting piece (3), a guide block (4) is arranged inside the nozzle body (1), a glue inlet (5) is provided on one side of the guide block (4), a first air channel (6) is provided inside the guide block (4), a glue outlet (8) is provided on one side of the nozzle body (1), a second air channel (7) is provided inside the nozzle body (1), an air inlet (9) is provided on the outer surface of the connecting piece (3), and an air cavity (10) is provided at one end of the connecting piece (3); A pressure pump (14) is arranged inside the connecting piece (3), one end of the pressure pump (14) is connected to a rubber discharge pipe (13), a rubber cavity (12) is arranged inside the connecting piece (3), and a terminal end of the rubber discharge pipe (13) is connected to the rubber cavity (12).

2. The airflow glue blowing nozzle according to claim 1, characterized in that: The outer diameter of the nut (2) is greater than the outer diameter of the nozzle body (1), and the diameter of the upper end of the nozzle body (1) is greater than the diameter of the lower end of the nozzle body (1).

3. The airflow glue blowing nozzle according to claim 1, characterized in that: The nut (2) and the connecting piece (3) are connected in a threaded manner, and the height of the nut (2) is greater than the height of the nozzle body (1).

4. The air flow glue blowing nozzle according to claim 1, characterized in that: The lower end of the glue cavity (12) is connected to the glue inlet (5), and the diameter of the glue cavity (12) is greater than the diameter of the glue inlet (5).

5. The air flow glue blowing nozzle according to claim 1, characterized in that: A sealing cavity (11) is provided at the lower end of the connecting piece (3), and the sealing cavity (11) is in a circular ring structure.

6. The air flow glue blowing nozzle according to claim 1, characterized in that: The first air channels (6) are distributed at equal angles with respect to the center of the guide block (4), and the second air channels (7) are distributed at equal angles with respect to the center of the nozzle body (1).

7. The airflow glue blowing nozzle according to claim 1, characterized in that: The first air channel (6) corresponds to the second air channel (7) in a one-to-one manner, and the first air channel (6) and the second air channel (7) are in an inclined structure.

8. The air flow glue blowing nozzle according to claim 1, characterized in that: The air inlets (9) are distributed at equal angles with respect to the center of the connecting piece (3), and the air inlets (9) are connected to the air cavity (10).

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