Hot melt glue spraying anti-sputtering spray gun nozzle
By designing a double-layer structured splash cover and adjustment head on the hot melt adhesive spray gun, adjusting the size and jet flow rate of the spray hole, the problem of spray liquid sputtering is solved, improving the safety of the spraying process and providing dual protection effect .
Patent Information
- Application Number
- CN202421172000.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The existing hot melt adhesive spray guns lack anti-sputtering components, which makes the spray liquid easy to sputter during the spraying process, which may cause scalding and safety hazards.
A hot melt adhesive spray spray gun spray head is designed, using a double-layer structure of splash cover and adjustment head. By adjusting the size of the spray hole and the jet flow, the speed and pressure of the spray liquid are increased, making the spray liquid more concentrated. This reduces the possibility of sputtering.
It effectively reduces the possibility of spraying liquid sputtering, improves the safety of the spraying process, and provides a double protection effect through a double-layer protection mechanism.
Smart Images
Figure CN222446888U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spray gun nozzles, in particular to a hot melt glue spraying anti-sputtering spray gun nozzle. Background Art
[0002] A spray gun is a device that uses liquid or compressed air to release quickly as power. The spray gun can be directly loaded with paint in the industry. The spray gun includes a gun body and a gun head. The gun body and the gun head are connected by a connecting mechanism. The gun head includes a nozzle. Several metal round steels are welded inside the nozzle. The connecting mechanism includes a flange and a chain pin. The nozzle is made into a flat shape, which is convenient to replace and has a low cost. It can also effectively prevent the gun head from falling off and wearing.
[0003] The existing spray gun lacks a component to prevent the liquid from splashing. During the spraying process, the spray gun is prone to splashing the liquid onto surrounding objects or people due to its strong spray pressure. In particular, the temperature of the hot melt glue is high, and splashing onto people may cause burns, which poses an unsafe factor during use. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] The technical problem to be solved by the utility model is to overcome the defect that the above-mentioned hot melt glue spray gun is not provided with an anti-sputtering component, and to provide a hot melt glue spraying anti-sputtering spray gun nozzle.
[0006] (II) Technical solution
[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a hot melt glue spraying anti-sputtering spray gun nozzle, including a spray gun body, a nozzle is provided on one side of the spray gun body, a spray volume adjustment component is rotatably provided at the nozzle, the spray volume adjustment component includes an adjusting head, the adjusting head is rotatably sleeved on the nozzle, a plurality of spray holes are arranged around the adjusting head, a groove is provided in the adjusting head, a positioning rod is connected in the groove through a telescopic spring, a plurality of positioning grooves matching the positioning rod are arranged at equal angles on the spray gun body, a threaded groove is provided on the outer surface of the adjusting head, a splash guard is threadedly connected on the adjusting head, the splash guard is a double-layer structure, and the splash guard is an inner cover and an outer cover from the inside to the outside.
[0008] As an improvement: the number of the spray holes is seven, the diameter of each spray hole decreases successively, and the spray holes are drafted 1.5° outward, the number of the positioning grooves is the same as the number of the spray holes, and a sealing ring is provided at the nozzle. The smaller diameter spray hole can reduce the flow caliber to increase the speed and pressure of the spray liquid, make the spray liquid more concentrated, thereby reducing the possibility of sputtering. The setting of the sealing ring ensures the sealing of the connection between the nozzle and the spray hole.
[0009] As an improvement: a limiting ring is provided on one side of the adjusting head, and a limiting groove matching the limiting ring is provided on the spray gun body. The limiting ring slides in the limiting groove to limit the position of the adjusting head and prevent the adjusting head from falling off the spray gun body.
[0010] As an improvement: a slide groove 1 is provided at the position of the positioning groove of the spray gun body, one end of the positioning rod is an arc structure, and the positioning rod with an arc structure cooperates with the slide groove 1 to facilitate the rotation of the adjustment head.
[0011] As an improvement: the inner cover is provided with a plurality of leakage holes, the splash-proof cover is a transparent cover structure as a whole, and the spray liquid is sprayed from the leakage holes to the outer cover, thereby reducing the residue of the spray liquid on the inner cover, thereby preventing the spray liquid from dripping along the inner cover onto the sprayed object.
[0012] As an improvement: the bottom surfaces of the inner cover and the outer cover are symmetrically provided with two slide grooves, and a cleaning scraper is slidably provided in the two slide grooves. The cleaning scraper fits the inner surfaces of the inner cover and the outer cover, and rotating the cleaning scraper can clean the spray liquid adhering to the inner cover and the outer cover.
[0013] (III) Beneficial effects
[0014] The advantages of the utility model compared with the prior art are:
[0015] 1. The spray gun body is equipped with an adjustment head that can change the spray flow rate. The spray flow rate is controlled by changing the size of the spray hole. The reduction of the spray hole diameter increases the spray speed and pressure, making the spray more concentrated and achieving the purpose of anti-sputtering;
[0016] 2. A detachable splash shield is provided on the adjusting head to block the splashing liquid, playing a double protection role and improving the anti-splashing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 The utility model discloses a structural schematic diagram of a spray gun nozzle for hot melt glue spraying and sputtering prevention.
[0018] Figure 2 The utility model discloses an explosion structure schematic diagram of a hot melt glue spraying anti-sputtering spray gun nozzle.
[0019] Figure 3 The utility model is a schematic diagram of the enlarged structure of a part A of a hot melt glue spraying anti-sputtering spray gun nozzle.
[0020] Figure 4 The utility model is a schematic diagram of the enlarged structure of a part B of a hot melt glue spraying anti-sputtering spray gun nozzle.
[0021] Figure 5 The utility model discloses a schematic diagram of the structure of an adjusting head of a hot melt glue spraying anti-sputtering spray gun.
[0022] Figure 6 The utility model discloses a schematic diagram of a partial cross-sectional structure of an adjusting head of a hot-melt glue spraying anti-sputtering spray gun nozzle when viewed from above.
[0023] As shown in the figure: 1. Spray gun body; 2. Nozzle; 3. Adjustment head; 4. Spray hole; 5. Groove; 6. Telescopic spring; 7. Positioning rod; 8. Positioning groove; 9. Threaded groove; 10. Splash shield; 11. Inner cover; 12. Outer cover; 13. Sealing ring; 14. Limiting ring; 15. Limiting groove; 16. Slideway 1; 17. Leakage hole; 18. Slideway 2; 19. Cleaning scraper. DETAILED DESCRIPTION
[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings, wherein the same components are indicated by the same reference numerals.
[0025] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.
[0026] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0027] Embodiment 1
[0028] Combined with Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, a hot melt adhesive spraying anti-sputtering spray gun nozzle comprises a spray gun body 1, a nozzle 2 is provided on one side of the spray gun body 1, a spray volume adjustment component is rotatably provided at the nozzle 2, the spray volume adjustment component comprises an adjusting head 3, the adjusting head 3 is rotatably sleeved on the nozzle 2, a plurality of spray holes 4 are arranged around the adjusting head 3, a groove 5 is arranged in the adjusting head 3, a positioning rod 7 is connected in the groove 5 through a telescopic spring 6, a plurality of positioning grooves 8 cooperating with the positioning rod 7 are arranged around the spray gun body 1 at equal angles, a threaded groove 9 is provided on the outer surface of the adjusting head 3, a splash guard 10 is threadedly connected on the adjusting head 3, the splash guard 10 is a double-layer structure, and the splash guard 10 is respectively an inner cover 11 and an outer cover 12 from the inside to the outside.
[0029] Through the above structure, the regulating head 3 is rotated to change the spray diameter, and the nozzle hole 4 with a suitable diameter is selected according to the spraying requirements. By controlling the spray flow rate, the possibility of sputtering can be reduced. At the same time, a splash shield 10 is provided externally to provide double-layer protection against sputtering.
[0030] Combined with Figure 2 , Figure 3 and Figure 5 As shown, there are seven spray holes 4, the diameters of each spray hole 4 decrease successively, and the spray holes 4 are drafted outward by 1.5°, the number of the positioning grooves 8 is the same as the number of the spray holes 4, a sealing ring 13 is provided at the nozzle 2, a limiting ring 14 is provided on one side of the adjusting head 3, a limiting groove 15 matching the limiting ring 14 is provided on the spray gun body 1, a sliding groove 16 is provided at the position of the positioning groove 8 of the spray gun body 1, and one end of the positioning rod 7 is an arc-shaped structure.
[0031] Through the above structure, the smaller diameter of the spray hole 4 can reduce the flow caliber to increase the speed and pressure of the spray liquid, make the spray liquid more concentrated, and thus reduce the possibility of sputtering. The setting of the sealing ring 13 ensures the sealing of the connection between the nozzle 2 and the spray hole 4. The limiting ring 14 slides in the limiting groove 15 to limit the position of the adjusting head 3 and prevent the adjusting head 3 from falling off the spray gun body 1. The positioning rod 7 with an arc structure cooperates with the slide groove 16 to facilitate the rotation of the adjusting head 3.
[0032] Embodiment 2
[0033] Based on the first embodiment, combined with the attached Figure 2 and Figure 4 As shown, the inner cover 11 is provided with a plurality of leakage holes 17, the splash shield 10 is a transparent cover structure as a whole, the bottom surfaces of the inner cover 11 and the outer cover 12 are symmetrically provided with a second slide groove 18, and a cleaning scraper 19 is slidably provided in the second slide groove 18, and the cleaning scraper 19 is in contact with the inner surfaces of the inner cover 11 and the outer cover 12.
[0034] Through the above structure, the spray liquid is sprayed from the leakage hole 17 onto the outer cover 12, thereby reducing the residual spray liquid on the inner cover 11, thereby preventing the spray liquid from dripping along the inner cover 11 onto the sprayed object, and rotating the cleaning scraper 19 can clean the spray liquid adhering to the inner cover 11 and the outer cover 12.
[0035] The specific usage is as follows:
[0036] According to the spraying requirements, the adjusting head 3 is rotated, and the positioning rod 7 is forced to slide along the slide groove 16 to align the spray hole 4 of appropriate size with the nozzle 2. The positioning rod 7 is inserted into the positioning groove 8 for fixing under the action of the telescopic spring 6. The reduction in the diameter of the spray hole 4 can increase the speed and pressure of the spray liquid, concentrate the spray liquid, and reduce the occurrence of sputtering. The sputtering spray liquid is blocked by the splash shield 10;
[0037] During the spraying process, the cleaning scraper 19 can be rotated to simply clean the spray liquid adhering to the inner cover 11 and the outer cover 12. After the spraying is completed, the splash shield 10 can be rotated and removed for thorough cleaning.
[0038] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A hot melt adhesive spraying anti-sputtering spray gun nozzle, comprising a spray gun body (1), a nozzle (2) being provided on one side of the spray gun body (1), characterized in that: A spray volume adjustment component is rotatably provided at the nozzle (2), and the spray volume adjustment component comprises an adjustment head (3), the adjustment head (3) is rotatably sleeved on the nozzle (2), a plurality of spray holes (4) are arranged around the adjustment head (3), a groove (5) is arranged inside the adjustment head (3), a positioning rod (7) is connected to the groove (5) via a telescopic spring (6), and a plurality of positioning grooves (8) matching the positioning rod (7) are arranged around the spray gun body (1) at equal angles; The outer surface of the adjusting head (3) is provided with a thread groove (9), and a splash guard (10) is threadedly connected to the adjusting head (3). The splash guard (10) is a double-layer structure, and the splash guard (10) comprises an inner cover (11) and an outer cover (12) from the inside to the outside.
2. The anti-sputtering spray gun nozzle for hot melt adhesive spraying according to claim 1, characterized in that: The number of the spray holes (4) is seven, the diameters of the spray holes (4) decrease successively, and the spray holes (4) are drafted outward by 1.5°. The number of the positioning grooves (8) is the same as the number of the spray holes (4), and a sealing ring (13) is provided at the nozzle (2).
3. The anti-sputtering spray gun nozzle for hot melt adhesive spraying according to claim 1, characterized in that: A limiting ring (14) is provided on one side of the regulating head (3), and a limiting groove (15) matching with the limiting ring (14) is provided on the spray gun body (1).
4. The anti-sputtering spray gun nozzle for hot melt adhesive spraying according to claim 1, characterized in that: A slide groove (16) is provided at the location of the positioning groove (8) of the spray gun body (1), and one end of the positioning rod (7) is an arc-shaped structure.
5. The anti-sputtering spray gun nozzle for hot melt adhesive spraying according to claim 1, characterized in that: The inner cover (11) is provided with a plurality of leakage holes (17), and the splash-proof cover (10) is a transparent cover structure as a whole.
6. The anti-sputtering spray gun nozzle for hot melt adhesive spraying according to claim 1, characterized in that: The bottom surfaces of the inner cover (11) and the outer cover (12) are symmetrically provided with a second slide groove (18), and a cleaning scraper (19) is slidably provided in the second slide groove (18), and the cleaning scraper (19) is in contact with the inner surfaces of the inner cover (11) and the outer cover (12).