Structure for spraying glue

Abstract

The utility model discloses a structure for spraying glue. The structure for spraying the glue comprises a main body and a lock cap, 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 above the curve air ducts, the annular boss is provided with air inlet holes corresponding to the curve air ducts, the bottom of the lock cap is provided with an opening, and the main body is placed on the inner side of the lock cap. The bottom of the main body extends out of the opening, a notch is formed in the bottom of the curved air duct and is exposed out of the opening, and airflow penetrates through the air inlet and then is blown to the glue outlet hole along the curved air duct. Compressed air enters from the air inlet and then forms the air chamber with the lock cap, so that the pressure is uniform when the compressed air enters the air chamber, and then the air flow is blown to the glue outlet hole along the curve air duct, so that hot melt glue flowing out of the glue outlet hole is blown away by the air flow flowing out along the curve air duct, and the hot melt glue is atomized more fully; and the spraying area is larger under the same glue amount, so that the production requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of glue spraying, in particular to a structure for glue spraying. 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 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 structure for spraying glue, including: a main body and a locking cap, 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 located above the curved air duct and is also provided with an annular boss, the annular boss is provided with an air inlet corresponding to the curved air duct, the bottom of the locking cap is provided with an opening, the main body is placed on the inner side of the locking cap, and the bottom of the main body extends out of the opening, the bottom of the curved air duct is provided with a notch, and the notch is exposed from the opening, the airflow passes through the air inlet 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 cone head end protrudes from the opening, 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, and the sealing ring is fitted to the inner wall of the lock cap.

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

[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 inner wall of the locking cap is provided with a threaded layer.

[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 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, the annular boss is provided with an air inlet corresponding to the curved air duct, an opening is provided at the bottom of the lock cap, the main body is placed on the inner side of the lock cap, and the bottom of the main body extends out of the opening, a notch is provided at the bottom of the curved air duct, and the notch is exposed from the opening, compressed air enters from the air inlet and forms an air chamber between the lock cap, so that the pressure of the compressed air is uniform when entering the air chamber, and then the airflow is blown 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 the spraying area is larger under 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 a structure for spraying glue provided in an embodiment of the utility model;

[0019] Figure 2 An exploded schematic diagram of a structure for spraying glue provided by an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the structure of the main body provided by an embodiment of the utility model;

[0021] Figure 4 A schematic structural diagram of a lock cap provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] See also Figures 1 to 4 In the specific embodiment shown, the utility model discloses a structure for spraying glue, including: a main body 10 and a locking cap 20, the main body 10 is provided with a through glue outlet hole 11, the outer periphery of the main body 10 is provided with a plurality of curved air ducts 12, the main body 10 is located above the curved air duct 12 and is also provided with an annular boss 13, the annular boss 13 is provided with an air inlet hole 14 corresponding to the curved air duct 12, the bottom of the locking cap 20 is provided with an opening 21, the main body 10 is placed on the inner side of the locking cap 20, and the bottom of the main body 10 extends out of the opening 21, the bottom of the curved air duct 12 is provided with a notch 15, and the notch 15 is exposed from the opening 21, and the airflow passes through the air inlet hole 14 and then blows toward the glue outlet hole 11 along the curved air duct 12.

[0030] Specifically, the locking cap 20 is used to connect the glue spraying main unit so that the glue spraying main unit and the main body 10 are tightly connected together, and the hot melt adhesive and the compressed air are separated from each other, so that the hot melt adhesive can spray out a perfect spiral effect. Among them, a glue outlet hole 11 is provided through the main body 10, and a plurality of curved air ducts 12 are provided on the outer periphery of the main body 10. The main body 10 is also provided with an annular boss 13 above the curved air duct 12. The annular boss 13 is provided with an air inlet 14 corresponding to the curved air duct 12. An opening 21 is provided at the bottom of the lock cap 20. The main body 10 is placed on the inner side of the lock cap 20, and the bottom of the main body 10 extends out of the opening 21. A notch 15 is provided at the bottom of the curved air duct 12, and the notch 15 is exposed at the opening 21. Compressed air enters from the air inlet 14 and forms an air chamber between the lock cap 20, so that the pressure of the compressed air is uniform when entering the air chamber, and then the airflow is blown 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 under 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 11, ensuring that the hot melt adhesive is evenly sprayed on the surface of the product, thereby improving the accuracy and uniformity of the glue spraying effect.

[0031] Specifically, the opening 21 is circular in shape, and the size of the opening 21 can be adjusted according to demand to adjust the size of the exposed gap 15, thereby adjusting the size of the blown airflow so that the hot melt adhesive can meet the spraying requirements.

[0032] In one embodiment, see Figure 1 to Figure 2 As shown, a cone head end 16 extends from the bottom of the main body 10 , and the cone head end 16 extends out of the opening 21 , and the glue outlet hole 11 is located at the center of the cone head end 16 .

[0033] Specifically, the glue outlet 11 is located at the center of the cone head end 16, ensuring that the hot melt adhesive is evenly sprayed from the center of the main body 10, achieving a precise glue spraying effect. In addition, the design of the cone head end 16 can help reduce the resistance of the hot melt adhesive during the spraying process, allowing the hot melt adhesive to pass smoothly through the main body 10, avoiding blockage or uneven spraying. In addition, the design of the cone head end 16 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.

[0034] In one embodiment, a sealing ring 17 is further extended from the outer periphery of the annular boss 13 , and the sealing ring 17 is in contact with the inner wall of the locking cap 20 .

[0035] Specifically, by providing the sealing ring 17, and then the sealing ring 17 is attached to the inner wall of the lock cap 20, it plays a sealing role, which can effectively limit the movement path of the airflow, and ensure 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 17 limits the movement range of the airflow, which can avoid the waste and unnecessary loss of the airflow, and improve the efficiency and saving capacity of the glue spraying. In other embodiments, the sealing ring 17 can also be arranged above the annular boss 13, and the air inlet 14 passes through the sealing ring 17, and the diameter of the sealing ring 17 is larger than the annular boss 13.

[0036] In one embodiment, see Figure 1 to Figure 2 As shown, the curved air duct 12 is a curved groove arranged along the outer circumference of the main body 10, and the notch 15 is located at the bottom of the curved groove.

[0037] 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 glue spraying.

[0038] In one embodiment, the groove width of the curved groove is 0.8-1.2 mm.

[0039] 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.

[0040] In one embodiment, the groove depth of the curved groove is 0.8-1 mm.

[0041] 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 glue spraying. In addition, the groove depth of the curved groove is preferably 1mm, 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.

[0042] 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 .

[0043] 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 glue spraying. 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 glue spraying process, ensure that the glue spraying can work continuously and efficiently, and reduce the possibility of failure and shutdown.

[0044] In one embodiment, the inner wall of the locking cap 20 is provided with a thread layer 22 .

[0045] Specifically, the structure for spraying glue can be firmly connected with the glue spraying main machine through the thread layer 22, so as to avoid loosening or falling off during use, thereby ensuring the stability and reliability of the glue spraying. In addition, the thread structure is easy to disassemble and assemble, and has strong sealing performance.

[0046] In one embodiment, the air inlet 14 is circular.

[0047] 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.

[0048] In one embodiment, the diameter of the air inlet hole 14 is 0.8-1.2 mm.

[0049] 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 glue spraying, 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 blockage of the air inlet 14, and maintain stable operation of the glue spraying. In addition, the diameter of the air inlet 14 of an appropriate size can produce an ideal airflow speed and pressure, which is conducive to forming a good spraying effect and improving the working efficiency of the glue spraying. 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.

[0050] In one embodiment, the diameter of the glue outlet hole 11 is 1-1.5 mm.

[0051] 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 glue spraying. 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.

[0052] In one embodiment, the main body 10, the annular boss 13, the cone head end 16 and the sealing ring 17 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 glue will not leak due to structural problems during glue spraying, 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 seams between components, improve the overall sealing performance, and avoid leakage of hot melt glue during the spraying process.

[0053] In one embodiment, after being used for a period of time, the glue spraying structure will produce dirt and need to be cleaned. Since the glue spraying structure is composed of only the main body 10 and the locking cap 20, and the curved air duct 12 is located at the periphery of the main body 10, it is easy to clean and can be used repeatedly, thereby increasing the service life.

[0054] The utility model also discloses a glue spraying machine, comprising the glue spraying structure and a glue spraying main machine as mentioned above.

[0055] Specifically, the glue spraying main unit is used to connect the locking cap 20 and the connecting body 10 to provide hot melt glue and high-temperature compressed air, wherein the hot melt glue enters the glue outlet hole 11 and the high-temperature compressed air enters the air inlet hole 14 to realize the glue spraying operation.

[0056] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A structure for spraying glue, characterized in that: include: A main body and a locking cap, wherein the main body is provided with a through glue outlet hole, a plurality of curved air ducts are provided on the outer periphery of the main body, 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 corresponding to the curved air duct, an opening is provided at the bottom of the locking cap, the main body is placed on the inner side of the locking cap, and the bottom of the main body extends out of the opening, a notch is provided at the bottom of the curved air duct, and the notch is exposed from the opening, and the airflow passes through the air inlet and then blows toward the glue outlet hole along the curved air duct.

2. A 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 cone head end protrudes from the opening, and the glue outlet hole is located at the center of the cone head end.

3. The 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, and the sealing ring is fitted to the inner wall of the lock cap.

4. The 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, and the notch is located at the bottom of the curved groove.

5. The 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 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 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 structure for spraying glue according to claim 1, characterized in that: The inner wall of the locking cap is provided with a thread layer.

9. The structure for spraying glue according to claim 1, characterized in that: The diameter of the air inlet hole is 0.8-1.2 mm.

10. The 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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