Module integral type spray gun with rotatable nozzle for hot melt adhesive
By adopting a modular integrated nozzle design and a three-layer sealed deep cavity structure, the problems of multiple components, complex assembly, and uneven temperature in traditional hot melt adhesive spray guns have been solved, thereby improving the stability of the spray gun and the product yield.
Patent Information
- Application Number
- CN202520136666.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Traditional hot melt adhesive spray gun designs suffer from problems such as a large number of components, large assembly errors, complex maintenance, and uneven temperature conduction, resulting in unstable spraying effects, adhesive stringing, and residual adhesive, which affect product yield.
It adopts a modular integrated nozzle design, integrating a filter screen, glue control valve and rotating mechanism, reducing the number of parts, improving assembly accuracy and temperature uniformity, and adopting a three-layer sealed deep cavity structure to reduce glue retention in the glue outlet channel.
It improves the durability and stability of the spray gun, reduces glue stringing and residue, and increases product yield.
Smart Images
Figure CN223832715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hot melt adhesive spraying equipment, and in particular to a modular integrated nozzle rotatable hot melt adhesive spray gun. Background Technology
[0002] With the continuous improvement of industrial automation, hot melt adhesive spraying technology has been widely used in packaging, manufacturing, assembly, and other fields. As the core component of hot melt adhesive spraying equipment, the performance of the hot melt adhesive spray gun directly affects the spraying effect and product quality. Traditional hot melt adhesive spray guns have many shortcomings in their structural design, such as a large number of components and parts, large assembly errors, complex maintenance, and uneven temperature conduction. These problems not only affect the durability and stability of the spray gun but also lead to frequent glue stringing and residue, reducing product yield. Utility Model Content
[0003] This invention provides a modular, rotatable hot melt adhesive spray gun with an integrated nozzle. Through its highly integrated structural design, it reduces the number of parts, minimizes assembly errors, and simplifies the maintenance process.
[0004] The technical solution adopted by this utility model is as follows: a modular integrated nozzle rotatable hot melt adhesive spray gun, including a spray gun heating base, a rotating nozzle rotatably connected to the bottom of the spray gun heating base, a hot melt adhesive inlet on one side of the spray gun heating base, an adhesive valve control air source inlet and an adhesive dispensing adjustment bolt on the top of the spray gun heating base, a rotating input shaft rotatably connected to the spray gun heating base, a transmission gear fixedly sleeved on the lower part of the rotating input shaft and the rotating nozzle, and the two transmission gears meshing with each other, and an adhesive control pin extending into the adhesive dispensing adjustment bolt is provided inside the rotating nozzle.
[0005] As a further improvement of this utility model, a gun holder hanger is provided on the upper side of the spray gun heating seat, and a filter screen group is provided on the lower side of the spray gun heating seat.
[0006] As a further improvement of this utility model, the bottom end of the rotating nozzle is provided with a 90-degree nozzle.
[0007] As a further improvement of this utility model, both the rotary input shaft and the rotary nozzle are rotatably connected to the spray gun heating seat through a bearing assembly.
[0008] As a further improvement of this utility model, the rotating nozzle is provided with a glue dispensing fixing nozzle sleeved under the glue control pin, and the rotating nozzle is provided with a rotating sealing gasket located at the glue dispensing fixing nozzle and a rotating sealing ring located at the outlet of the rotating nozzle.
[0009] As a further improvement of this utility model, the upper part of the glue control pin is fitted with a glue valve piston located inside the glue dispensing adjustment bolt.
[0010] The beneficial effects of this utility model are as follows: Structural innovation: This utility model adopts a highly integrated structure, with the filter assembly, dispensing valve, rotating mechanism, etc., all integrated into a single component, reducing the number of components and assembly errors, and simplifying the structure for easy maintenance. The high overall integrity and more uniform temperature conduction result in significantly improved durability and stability.
[0011] Innovative Rotary Dispensing Nozzle Structure: This utility model adopts a three-layer sealed deep cavity structure, which minimizes the distance between the glue control and dispensing points of the fixed and rotary dispensing nozzles and the dispensing port. This reduces glue residue in the dispensing nozzle flow channel, reduces glue stringing and glue residue at the dispensing nozzle port, and plays a key role in improving product yield for customers. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of a modular, rotatable hot melt adhesive spray gun according to the present invention.
[0013] Figure 2 This utility model relates to a modular, integral nozzle rotatable hot melt adhesive spray gun. Figure 1 Another perspective illustration;
[0014] Figure 3 This is a front view of a modular, integral nozzle rotatable hot melt adhesive spray gun according to the present invention;
[0015] Figure 4 This is a schematic diagram of the internal structure of the spray gun heating base of a modular, rotatable hot melt adhesive spray gun according to this utility model.
[0016] As shown in the figure: 1. Rotary input shaft; 2. Dispensing volume adjustment bolt; 3. Glue valve control air source inlet; 4. Gun holder hanger; 5. Hot melt glue inlet; 6. Filter screen assembly; 7. Spray gun heating seat; 8. Rotary nozzle; 9. Glue valve piston; 10. Transmission gear; 11. Bearing assembly; 12. Rotary sealing gasket; 13. Rotary sealing ring; 14. Glue dispensing fixing nozzle; 15. Glue control pin; 16. 90-degree nozzle. Detailed Implementation
[0017] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.
[0018] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.
[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0020] This utility model provides the following: Figure 1-4 The illustrated modular integrated nozzle rotatable hot melt adhesive spray gun includes a spray gun heating base 7, a rotating nozzle 8 rotatably connected to the bottom of the spray gun heating base 7, a hot melt adhesive inlet 5 on one side of the spray gun heating base 7, an adhesive valve control air source inlet 3 and an adhesive dispensing adjustment bolt 2 on the top of the spray gun heating base 7, a rotating input shaft 1 rotatably connected to the spray gun heating base 7, and transmission gears 10 are fixedly sleeved on the lower part of the rotating input shaft 1 and the rotating nozzle 8, and the two transmission gears 10 are meshed and connected, and an adhesive control pin 15 extending into the adhesive dispensing adjustment bolt 2 is provided inside the rotating nozzle 8.
[0021] like Figure 1 , Figure 2 , Figure 3 As shown, in this utility model, the spray gun heating base 7 has a gun base hanger 4 on its upper side and a filter screen group 6 on its lower side. The bottom of the rotating nozzle 8 has a 90-degree nozzle 16.
[0022] like Figure 4 As shown, in this invention, both the rotary input shaft 1 and the rotary nozzle 8 are rotatably connected to the spray gun heating base 7 via a bearing assembly 11. The rotary nozzle 8 contains a glue dispensing fixing nozzle 14 fitted under the glue control pin 15, a rotary sealing gasket 12 located at the glue dispensing fixing nozzle 14, and a rotary sealing ring 13 located at the outlet of the rotary nozzle 8. A glue valve piston 9 is fitted onto the upper part of the glue control pin 15, located within the glue dispensing adjustment bolt 2.
[0023] Working Principle: In practical implementation, hot melt adhesive enters the spray gun heating base 7 through the hot melt adhesive inlet 5, is filtered through the filter screen group 6, and then enters the adhesive valve. Control gas enters the valve body through the adhesive valve control gas source inlet 3, compressing the adhesive valve piston 9 and causing the dispensing pin 15 to open, controlling the hot melt adhesive output, which is then sprayed from the rotary nozzle 8. When equipped with a 90-degree nozzle 16, the rotational power drives the transmission gear 10 from the rotary input shaft 1, causing the rotary nozzle 8 to rotate. The hot melt adhesive is sprayed from the 90-degree nozzle 16 in a 90-degree angle based on the plane. During rotation, adhesive can be sprayed onto the four sides of the inner wall of the box in one pass, reducing the number of spraying steps and improving efficiency.
[0024] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A modular, integral nozzle rotatable hot melt adhesive spray gun, comprising a spray gun heating base (7), characterized in that: The bottom of the spray gun heating base (7) is provided with a rotating nozzle (8) rotatably connected thereto. The side of the spray gun heating base (7) is provided with a hot melt glue inlet (5). The top of the spray gun heating base (7) is provided with a glue valve control air source inlet (3) and a glue output adjustment bolt (2). A rotating input shaft (1) rotatably connected thereto is inserted on the spray gun heating base (7). The rotating input shaft (1) and the lower part of the rotating nozzle (8) are both fixedly fitted with transmission gears (10) and the two transmission gears (10) are meshed and connected. The rotating nozzle (8) is provided with a glue control pin (15) extending into the glue output adjustment bolt (2).
2. The modular integral nozzle rotatable hot melt adhesive spray gun according to claim 1, characterized in that: The spray gun heating seat (7) is provided with a gun seat hanger seat (4) on its upper side, and a filter screen group (6) is provided on its lower side.
3. The modular integral nozzle rotatable hot melt adhesive spray gun according to claim 1, characterized in that: The bottom end of the rotating nozzle (8) is provided with a 90-degree nozzle (16).
4. The modular integral nozzle rotatable hot melt adhesive spray gun according to claim 1, characterized in that: The rotary input shaft (1) and the rotary nozzle (8) are both rotatably connected to the spray gun heating seat (7) via a bearing assembly (11).
5. A modular, integral nozzle rotatable hot melt adhesive spray gun according to claim 1, characterized in that: The rotary nozzle (8) is provided with a glue dispensing fixing nozzle (14) sleeved under the glue control pin (15). The rotary nozzle (8) is provided with a rotary sealing gasket (12) located at the glue dispensing fixing nozzle (14) and a rotary sealing ring (13) located at the outlet of the rotary nozzle (8).
6. The modular integral nozzle rotatable hot melt adhesive spray gun according to claim 1, characterized in that: The glue control pin (15) is fitted with a glue valve piston (9) located inside the glue dispensing adjustment bolt (2).