Nozzle structure for spraying glue

Abstract

The utility model discloses a nozzle structure for spraying glue. The nozzle structure for spraying the glue comprises a main body, the main body is provided with a through glue outlet hole, the periphery of the main body is provided with a plurality of curve air ducts, the main body is further provided with an annular boss located above the curve air ducts, the annular boss is provided with air inlet holes corresponding to the curve air ducts, and the air inlet holes are communicated with the glue outlet hole. And air flow passes through the air inlet hole and then is blown to the glue outlet hole along the curve air duct. According to the utility model, the main body is provided with the through glue outlet hole, the periphery of the main body is provided with the plurality of curve air ducts, the main body is also provided with the annular boss above the curve air ducts, the annular boss is provided with the air inlet hole corresponding to the curve air ducts, and airflow passes through the air inlet hole and then is blown to the glue outlet hole along the curve air ducts; the hot melt adhesive flowing out of the adhesive outlet hole is blown away by airflow flowing out along the curve air channel, so that the hot melt adhesive is atomized more sufficiently, the spraying area is larger under the same adhesive amount, and the production requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzle structures, in particular to a nozzle structure for spraying glue. Background Art

[0002] With the development of technology, the requirements for glue spraying are getting higher and higher. The spraying effect of existing products cannot meet the production requirements. That is, the air duct of the existing nozzle is arranged inside the nozzle. Due to the limitation of the internal space, the air duct is small, resulting in insufficient atomization effect of the glue and unable to meet the production requirements. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a nozzle structure for spraying glue.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides a nozzle structure for spraying glue, including: a main body, the main body is provided with a through glue outlet hole, the outer periphery of the main body is provided with a plurality of curved air ducts, the main body is also provided with an annular boss located above the curved air duct, the annular boss is provided with an air inlet hole corresponding to the curved air duct, and the air flow passes through the air inlet hole and then blows toward the glue outlet hole along the curved air duct.

[0006] In a specific embodiment, a cone head end extends from the bottom of the main body, and the glue outlet hole is located at the center of the cone head end.

[0007] In a specific embodiment, a sealing ring is further extended from the outer periphery of the annular boss.

[0008] In a specific embodiment, the curved air duct is a curved groove arranged along the outer circumference of the main body.

[0009] In a specific embodiment, the groove width of the curved groove is 0.8-1.2 mm.

[0010] In a specific embodiment, the groove depth of the curved groove is 0.8-1 mm.

[0011] In a specific embodiment, the number of the air inlet holes is greater than or equal to the number of the curved air ducts.

[0012] In a specific embodiment, the air inlet is circular.

[0013] In a specific embodiment, the diameter of the air inlet hole is 0.8-1.2 mm.

[0014] In a specific embodiment, the diameter of the glue outlet hole is 1-1.5 mm.

[0015] The nozzle structure for glue spraying of the utility model has the following beneficial effects compared with the prior art: a glue outlet hole is provided through the main body, a plurality of curved air ducts are provided on the outer periphery of the main body, an annular boss is provided on the main body above the curved air duct, and the annular boss is provided with an air inlet corresponding to the curved air duct. The airflow passes through the air inlet and then blows toward the glue outlet hole along the curved air duct, so that the hot melt glue flowing out of the glue outlet hole is blown away by the airflow flowing out along the curved air duct, so that the hot melt glue is more fully atomized, and a larger area can be sprayed with the same amount of glue, thereby meeting the production requirements.

[0016] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A three-dimensional schematic diagram of the nozzle structure for spraying glue provided by the utility model Figure 1 ;

[0019] Figure 2 A three-dimensional schematic diagram of the nozzle structure for spraying glue provided by the utility model Figure 2 . DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] 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 of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0027] See also Figure 1 to Figure 2 In the specific embodiment shown, the utility model discloses a nozzle structure for spraying glue, including: a main body 10, wherein the main body 10 is provided with a through glue outlet hole 11, and the outer periphery of the main body 10 is provided with a plurality of curved air ducts 12, and the main body 10 is located above the curved air duct 12 and is also provided with an annular boss 13, and the annular boss 13 is provided with an air inlet hole 14 corresponding to the curved air duct 12, and the air flow passes through the air inlet hole 14 and then blows toward the glue outlet hole 11 along the curved air duct 12.

[0028] Specifically, a through-hole glue outlet hole 11 is provided in the main body 10, a plurality of curved air ducts 12 are provided on the periphery of the main body 10, and an annular boss 13 is provided above the curved air duct 12. The annular boss 13 is provided with an air inlet hole 14 corresponding to the curved air duct 12. The compressed high-temperature airflow passes through the air inlet hole 14 and then blows toward the glue outlet hole 11 along the curved air duct 12, so that the hot melt adhesive flowing out of the glue outlet hole 11 is blown away by the airflow flowing out along the curved air duct 12, so that the hot melt adhesive is more fully atomized, and the spraying area is larger with the same amount of adhesive, thereby meeting the production requirements. In addition, through the design of the curved air duct 12, the airflow can be effectively guided and accelerated, and finally a stable airflow spraying is formed at the glue outlet hole 11, ensuring that the hot melt adhesive is evenly sprayed on the surface of the product, and improving the accuracy and uniformity of the glue spraying effect.

[0029] In one embodiment, a cone head end 15 extends from the bottom of the main body 10 , and the glue outlet hole 11 is located at the center of the cone head end 15 .

[0030] Specifically, the glue outlet 11 is located at the center of the cone head end 15, ensuring that the hot melt adhesive is sprayed evenly from the center of the nozzle to achieve a precise glue spraying effect. In addition, the design of the cone head end 15 can help reduce the resistance of the hot melt adhesive during the spraying process, allowing the hot melt adhesive to pass through the nozzle smoothly to avoid blockage or uneven spraying. In addition, the design of the cone head end 15 helps to optimize the mixing and spraying of the airflow and hot melt adhesive, improve the efficiency and accuracy of glue spraying, and make the glue spraying work smoother and more efficient.

[0031] In one embodiment, a sealing ring 16 is further extended from the outer periphery of the annular boss 13 .

[0032] Specifically, by providing the sealing ring 16, a sealing effect is achieved, which can effectively limit the movement path of the airflow, ensuring that the airflow entering from the air inlet 14 can only move along the curved air duct 12 without overflowing or losing control. In addition, the sealing ring 16 limits the movement range of the airflow, which can avoid waste and unnecessary loss of the airflow, thereby improving the efficiency and conservation capacity of the nozzle. In other embodiments, the sealing ring 16 can also be provided above the annular boss 13, and the air inlet 14 passes through the sealing ring 16, and the diameter of the sealing ring 16 is larger than the annular boss 13.

[0033] In one embodiment, the curved air duct 12 is a curved groove arranged along the outer circumference of the main body 10 .

[0034] Specifically, by designing a reasonable curved groove, the airflow can have a more uniform and stable velocity distribution when flowing, thereby improving the uniformity and accuracy of the glue spraying effect. In addition, the curved grooves arranged along the periphery of the main body 10 can reduce the resistance and energy loss of the airflow and improve the energy efficiency performance of the nozzle.

[0035] In one embodiment, the groove width of the curved groove is 0.8-1.2 mm.

[0036] Specifically, by controlling the width of the curved groove, the velocity of the airflow can be accurately adjusted, thereby achieving precise control of the airflow velocity. In addition, a suitable groove width can help optimize the dynamic characteristics of the airflow in the curved groove, so that the airflow can flow more evenly, reduce turbulence and resistance, and improve the stability and uniformity of the airflow. In addition, the groove width of the curved groove is preferably 1 mm, at which time the spraying effect of the hot melt adhesive is better. In other embodiments, the curved groove can be set with groove widths of different sizes according to the size of the main body 10 and the spraying requirements, and no specific restrictions are made here.

[0037] In one embodiment, the groove depth of the curved groove is 0.8-1 mm.

[0038] Specifically, the appropriate groove depth can help control the pressure distribution of the airflow in the curved groove, thereby affecting the speed and flow characteristics of the airflow and adjusting the outlet pressure of the airflow to a certain extent. In addition, the appropriate groove depth can promote the airflow to be more evenly distributed and flow in the curved groove, reduce the occurrence of uneven flow and eddy current, and improve the stability and uniformity of the airflow. In addition, controlling the appropriate groove depth can reduce the resistance and energy loss of the airflow in the curved groove, and improve the efficiency and energy-saving performance of the nozzle. In addition, the groove depth of the curved groove is preferably 1 mm, at which time the spraying effect of the hot melt adhesive is better. In other embodiments, the curved groove can be set with groove depths of different sizes according to the size of the main body 10 and the spraying requirements, and no specific restrictions are made here.

[0039] In one embodiment, the number of the air inlet holes 14 is greater than or equal to the number of the curved air ducts 12 .

[0040] Specifically, by increasing the number of air inlets 14, more airflow can be provided to ensure that there is sufficient airflow supply in the curved air duct 12, thereby ensuring the normal operation of the nozzle. In addition, setting the number of air inlets 14 to be greater than or equal to the number of curved air ducts 12 can help balance the distribution of airflow and avoid the situation where some curved air ducts 12 have uneven working effects due to insufficient airflow. In addition, sufficient airflow supply can improve the stability and reliability of the entire nozzle, ensure that the nozzle can work continuously and efficiently, and reduce the possibility of failure and shutdown.

[0041] In one embodiment, the air inlet 14 is circular.

[0042] Specifically, the circular shape of the air inlet 14 can promote a more uniform airflow, avoid uneven flow or eddy flow at the inlet, and ensure uniform airflow distribution. In addition, the circular shape of the air inlet 14 usually has a smaller resistance, which helps to reduce the resistance loss when the airflow passes through the air inlet 14 and improve the efficiency of the airflow entering. In addition, the manufacturing of the circular air inlet 14 is relatively simple, the process cost is low, and it is conducive to the stability and efficiency of the production process.

[0043] In one embodiment, the diameter of the air inlet hole 14 is 0.8-1.2 mm.

[0044] Specifically, by controlling the diameter of the air inlet 14, the amount of airflow entering can be adjusted, thereby affecting the working parameters of the nozzle, such as pressure, speed, etc., and realizing precise adjustment of the airflow. In addition, a smaller diameter of the air inlet 14 can reduce the possibility of dust and impurities entering, reduce the risk of clogging of the air inlet 14, and maintain stable operation of the nozzle. In addition, an appropriately sized diameter of the air inlet 14 can produce an ideal airflow velocity and pressure, which is conducive to forming a good spraying effect and improving the working efficiency of the nozzle. In addition, controlling the diameter of the air inlet 14 also helps to optimize energy consumption, avoid excessive airflow loss, improve energy utilization, and meet the requirements of energy conservation and environmental protection. In addition, the diameter of the air inlet 14 is preferably 1 mm, at which time the spraying effect of the hot melt adhesive is better. In other embodiments, the air inlet 14 can be set to different diameters according to the size of the main body 10 and the spraying requirements, and no specific restrictions are made here.

[0045] In one embodiment, the diameter of the glue outlet hole 11 is 1-1.5 mm.

[0046] Specifically, the diameter of the glue outlet hole 11 directly affects the speed and amount of hot melt adhesive outflow. By controlling the diameter range, the glue outlet amount can be accurately controlled to meet different process requirements. In addition, the diameter of the glue outlet hole 11 will also affect the pressure when the hot melt adhesive flows out. A larger diameter may reduce the pressure, while a smaller diameter will increase the pressure. The glue outlet pressure of the hot melt adhesive can be adjusted through a suitable diameter range. In addition, controlling the diameter range of the glue outlet hole 11 can also reduce the risk of hot melt adhesive solidification and blockage, keep the glue outlet hole 11 unobstructed, and ensure stable operation of the nozzle. In addition, the diameter of the glue outlet hole 11 is preferably 1.2 mm, at which time the hot melt adhesive spraying effect is better. In other embodiments, the glue outlet hole 11 can be set to different diameters according to the size of the main body 10 and the spraying requirements, and no specific restrictions are made here.

[0047] In one embodiment, the main body 10, the annular boss 13, the cone head end 15 and the sealing ring 16 are an integrally formed structure, which improves the overall structural strength and stability, so that it can better withstand the pressure and vibration during operation and extend the service life. In addition, the risk of glue leakage at the connection can be reduced, ensuring that the hot melt adhesive will not leak due to structural problems when the nozzle is working, thereby improving production efficiency. In addition, the integrally formed structure can usually simplify the manufacturing process, reduce the complexity of component processing and assembly, reduce production costs, and improve production efficiency. In addition, the integrally formed structure can reduce the joints between components, improve the overall sealing performance, and avoid leakage of hot melt adhesive during the spraying process.

[0048] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A nozzle structure for spraying glue, characterized in that: include: The main body is provided with a through glue outlet hole, the outer periphery of the main body is provided with a plurality of curved air ducts, the main body is also provided with an annular boss located above the curved air duct, the annular boss is provided with an air inlet hole corresponding to the curved air duct, and the air flow passes through the air inlet hole and then blows toward the glue outlet hole along the curved air duct.

2. The nozzle structure for spraying glue according to claim 1, characterized in that: A cone head end extends from the bottom of the main body, and the glue outlet hole is located at the center of the cone head end.

3. The nozzle structure for spraying glue according to claim 1, characterized in that: A sealing ring is also extended from the outer periphery of the annular boss.

4. The nozzle structure for spraying glue according to claim 1, characterized in that: The curved air duct is a curved groove arranged along the outer circumference of the main body.

5. The nozzle structure for spraying glue according to claim 4, characterized in that: The groove width of the curved groove is 0.8-1.2 mm.

6. The nozzle structure for spraying glue according to claim 4, characterized in that: The groove depth of the curved groove is 0.8-1 mm.

7. The nozzle structure for spraying glue according to claim 1, characterized in that: The number of the air inlet holes is greater than or equal to the number of the curved air ducts.

8. The nozzle structure for spraying glue according to claim 1, characterized in that: The air inlet is circular in shape.

9. The nozzle structure for spraying glue according to claim 8, characterized in that: The diameter of the air inlet hole is 0.8-1.2 mm.

10. The nozzle structure for spraying glue according to claim 1, characterized in that: The diameter of the glue outlet hole is 1-1.5 mm.

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