Spray gun device for plasma spraying

Abstract

The utility model discloses a spray gun device for plasma spraying, and belongs to the technical field of plasma spraying, and the spray gun device is characterized by comprising a spray head, a connecting piece is connected to the lower side of the spray head in a penetrating mode, an extrusion handle is arranged on the rear side of the spray head, and a storage container is arranged at the lower end of the connecting piece; and the limiting seat is fixedly connected to the interior of the storage container. When a user needs to carry out spraying operation, a motor can be started to drive a stirring rod to stir raw materials in a storage container, meanwhile, in the rotating process of the stirring rod, a fixed disc can be driven to rotate, a first magnetic block drives a linkage disc to move upwards through a second magnetic block under the pushing of the magnetic effect, and then the raw materials in the storage container are stirred; and the linkage disc drives the fixed rod to move, so that the fixed rod drives the scraping plate to move in the connecting piece and scrapes the raw materials attached to the inner wall of the connecting piece, accumulation of the raw materials is reduced, and the phenomenon that the connecting piece is blocked is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of plasma spraying, and more particularly to a spray gun device for plasma spraying. Background Art

[0002] Plasma spraying is a technology for strengthening and modifying the surface of materials. It uses a DC-driven plasma arc as a heat source to heat coating materials such as powder to a molten or semi-molten state, and uses a high-speed airflow to spray it onto the surface of the substrate to form a coating, thereby making the substrate surface wear-resistant, corrosion-resistant, high-temperature oxidation-resistant, and electrically insulating. However, the plasma spray guns currently on the market still have defects and deficiencies in some aspects, such as:

[0003] At present, the invention relates to a spray gun with a publication number of CN101125317B. The invention relates to a spray gun that relies on compressed gas or electric propulsion and is used for spraying paint and similar viscous media. It includes a gun housing that accommodates the propulsion mechanism, a spray gun component that realizes mixing and / or metering, a handle protruding from the gun housing, a removable storage container attached to the gun housing for storing the medium, and a joint nut placed on the gun housing, or on an intermediate piece connected to the gun housing or an extension pipe, an air cap surrounding the joint nut, the joint nut is provided with mutually offset outlets for compressed air, in this way, different sprays can be formed, and an atomizing nozzle that is maintained in a directional position and can be opened by a nozzle needle valve.

[0004] At present, a spray gun for generating two-component foam with a publication number of CN101330981B comprises: two pressure vessels for containing starting components; conduits arranged parallel to each other in a gun component for delivering the starting components; a dosing valve for metering the starting components; and a mixing chamber for generating two-component foam, wherein the dosing valve is configured as a needle valve, each of the needle valves being provided with a cone of a detachable nozzle tip which opens directly into the mixing chamber and is arranged in the mixing chamber, and wherein the connection points of the pressure vessels are axially arranged one in front and one in the back, and the pressure vessels are arranged substantially perpendicular to the gun component.

[0005] In the prior art, similar to the above-mentioned plasma spray gun, during the use of the raw materials inside the storage container cannot be mixed, and the raw materials inside will precipitate after a period of time, thereby affecting the subsequent spraying effect. At the same time, when the raw materials are sprayed outward through the connecting piece, some of the raw materials will remain on the inner wall of the connecting piece, thereby clogging the connecting piece and affecting subsequent use. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a spray gun device for plasma spraying, which has the advantage that the raw materials attached to the inner wall of the connecting piece can be scraped off by a cleaning mechanism, thereby avoiding the clogging of the connecting piece.

[0007] To achieve the above object, the utility model provides the following technical solution: a spray gun device for plasma spraying, comprising a spray head, a connecting piece is connected through the lower side of the spray head, a squeezing handle is arranged on the rear side of the spray head, a protective cover is nested at the outer end of the spray head, and a storage container is arranged at the lower end of the connecting piece;

[0008] A limit seat, wherein the limit seat is fixedly connected to the interior of the storage container, a limit rod is fixedly connected to the limit seat, and the outer end of the limit rod is slidably connected to the limit block, and a cleaning mechanism is provided between the limit block and the interior of the storage container to prevent the connection piece from being blocked;

[0009] The cleaning mechanism includes a linkage disk, a second magnetic block, a fixed rod and a scraper plate. The lower surface of the limit block is hinged with a rotating rod. The side of the linkage disk and the lower end of the rotating rod are hinged to each other. The second magnetic block is fixedly connected to the lower surface of the linkage disk. The upper surface of the linkage disk is fixedly connected to the fixed rod. The scraper plate is fixedly connected to the side of the fixed rod.

[0010] In a preferred embodiment: a motor is fixedly connected to the lower surface of the storage container, a stirring rod is fixedly connected to the output end of the motor, and the stirring rod is nested and connected to the interior of the storage container, a fixed disk is fixedly connected to the upper end of the stirring rod, and a first magnetic block is fixedly connected to the upper surface of the fixed disk.

[0011] In a preferred embodiment: the rotating rod is symmetrically arranged in two groups about the center point of the linkage disk, the limit block forms a sliding structure through the rotating rod and the limit rod, and the scraping plate is vertically distributed in multiple groups along the outer side of the fixed rod.

[0012] In a preferred embodiment: the second magnetic block has the same magnetic properties as the first magnetic block, the linkage disk drives the fixed rod through the second magnetic block to form a sliding structure, and the outer side of the scraper plate is in contact with the connecting piece.

[0013] In a preferred embodiment: it also includes a docking rod and a return spring;

[0014] A docking hole is provided on the protective cover, and the side of the nozzle is nested and connected with the docking rod, and the docking rod is connected to the outer side of the nozzle through a reset spring.

[0015] In a preferred embodiment, two groups of the docking rods are symmetrically arranged about the center point of the nozzle, and the number of the docking rods is equal to the number of the docking holes.

[0016] In a preferred embodiment: the docking rod and the nozzle form an elastic structure through a return spring, and the outer end of the docking rod is docked to the inside of the docking hole.

[0017] Compared with the prior art, this application has the following beneficial effects:

[0018] 1. When the user needs to perform spraying operations, the motor can be started to drive the stirring rod to stir the raw materials inside the storage container. At the same time, the stirring rod will drive the fixed disk to rotate during the rotation process, so that the first magnetic block drives the linkage disk to move upward through the second magnetic block under the push of the magnetic effect, and drives the fixed rod to move through the linkage disk, so that the fixed rod drives the scraper plate to move inside the connecting piece and scrapes off the raw materials attached to the inner wall of the connecting piece, reducing the accumulation of raw materials and avoiding the blockage of the connecting piece;

[0019] 2. When the user is not using the device, he can manually pull the docking rod to both sides and nest the protective cover onto the nozzle. At this time, the docking hole on the protective cover is aligned with the position of the docking rod, and the docking rod is released. The docking rod is reset under the elastic force of the reset spring. At this time, the docking rod is docked to the inside of the docking hole and the protective cover is limited in position, which reduces the possibility of the protective cover falling off and further ensures the protective effect of the protective cover on the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 It is a partial cross-sectional schematic diagram of the utility model highlighting the internal structure of the storage container;

[0023] Figure 4 It is a partial schematic diagram of the utility model highlighting the cleaning mechanism;

[0024] Figure 5 It is a partial schematic diagram of the utility model highlighting the installation structure of the protective cover;

[0025] Figure 6 The utility model is a partial cross-sectional schematic diagram highlighting the docking of the docking rod and the nozzle.

[0026] Explanation of the accompanying drawings: 1. nozzle; 2. squeezing handle; 3. protective cover; 4. storage container; 5. connecting piece; 6. motor; 7. stirring rod; 8. fixed disk; 9. first magnetic block; 10. limit rod; 11. limit seat; 12. linkage disk; 13. second magnetic block; 14. fixed rod; 15. scraper plate; 16. limit block; 17. rotating rod; 18. docking hole; 19. docking rod; 20. reset spring. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] A spray gun device for plasma spraying, such as Figure 1-Figure 6 As shown, it includes a nozzle 1, a connecting piece 5 is connected through the lower side of the nozzle 1, and a squeezing handle 2 is arranged on the rear side of the nozzle 1, and a protective cover 3 is nested at the outer end of the nozzle 1, a storage container 4 and a limit seat 11 are arranged at the lower end of the connecting piece 5, the limit seat 11 is fixedly connected to the interior of the storage container 4, and a limit rod 10 is fixedly connected to the limit seat 11, the outer end of the limit rod 10 is slidably connected to the limit block 16, and a cleaning mechanism is arranged between the limit block 16 and the interior of the storage container 4 to prevent the connecting piece 5 from being blocked.

[0029] In one specific embodiment, Figure 1 and Figure 2 As shown, a motor 6 is fixedly connected to the lower surface of the storage container 4, and a stirring rod 7 is fixedly connected to the output end of the motor 6, and the stirring rod 7 is nested and connected to the interior of the storage container 4, and a fixed disk 8 is fixedly connected to the upper end of the stirring rod 7, and a first magnetic block 9 is fixedly connected to the upper surface of the fixed disk 8.

[0030] When the user needs to perform a spraying operation, the motor 6 can be started, and the motor 6 will synchronously drive the stirring rod 7 to rotate. At this time, the stirring rod 7 will stir the raw materials inside the storage container 4 to reduce the occurrence of raw material precipitation.

[0031] In one specific embodiment, Figure 3 and Figure 4 As shown, the cleaning mechanism includes a linkage disk 12, a second magnetic block 13, a fixed rod 14 and a scraper plate 15. The lower surface of the limit block 16 is hinged with a rotating rod 17. The side of the linkage disk 12 and the lower end of the rotating rod 17 are hinged to each other. The second magnetic block 13 is fixedly connected to the lower surface of the linkage disk 12, and the upper surface of the linkage disk 12 is fixedly connected to the fixed rod 14. The scraper plate 15 is fixedly connected to the side of the fixed rod 14. There are multiple groups of scraper plates 15 vertically distributed along the outer side of the fixed rod 14. The second magnetic block 13 has the same magnetic property as the first magnetic block 9. The linkage disk 12 drives the fixed rod 14 through the second magnetic block 13 to form a sliding structure, and the outer side of the scraper plate 15 is in contact with the connecting member 5.

[0032] When the stirring rod 7 rotates, the stirring rod 7 will stir the raw materials inside the storage container 4. At the same time, the stirring rod 7 will drive the fixed disk 8 to rotate during the rotation. At this time, the fixed disk 8 drives the first magnetic block 9 to rotate synchronously. When the first magnetic block 9 rotates to a certain position, the first magnetic block 9 is located at the lower side of the second magnetic block 13. At this time, the second magnetic block 13 will drive the linkage disk 12 to move upward under the impetus of the magnetic effect, and drive the fixed rod 14 to move through the linkage disk 12, so that the fixed rod 14 drives the scraper plate 15 to move inside the connecting member 5, and scrapes the raw materials attached to the inner wall of the connecting member 5, thereby avoiding the accumulation of raw materials and causing the connecting member 5 to be blocked.

[0033] It should be noted that, refer to the attached Figure 3 and Figure 4 As shown, two groups of rotating rods 17 are symmetrically arranged about the center point of the linkage disk 12 , and the limiting block 16 forms a sliding structure with the limiting rod 10 through the rotating rod 17 .

[0034] When the linkage disk 12 moves, the rotating rod 17 will rotate synchronously, and then the rotating rod 17 will push the limit block 16 to move along the limit rod 10. Under the limiting action of the limit rod 10, the stability of the movement of the linkage disk 12 can be improved, so that the scraper plate 15 can clean the inner wall of the connecting member 5 more stably.

[0035] See attached Figure 5 and Figure 6 As shown, a docking hole 18 is provided on the protective cover 3, and the side of the nozzle 1 is nested and connected with the docking rod 19. The docking rod 19 is connected to the outer side of the nozzle 1 through a reset spring 20. Two groups of docking rods 19 are symmetrically arranged about the center point of the nozzle 1, and the number of docking rods 19 is equal to the number of docking holes 18. The docking rods 19 form an elastic structure with the nozzle 1 through the reset spring 20, and the outer end of the docking rod 19 is docked to the inside of the docking hole 18.

[0036] When the user is not using the device, the docking rod 19 can be manually pulled to both sides, and the protective cover 3 can be nested and docked onto the nozzle 1. At this time, the docking hole 18 opened on the protective cover 3 is aligned with the position of the docking rod 19, and the docking rod 19 is released. The docking rod 19 is reset under the elastic force of the reset spring 20. At this time, the docking rod 19 is docked to the inside of the docking hole 18, and the position of the protective cover 3 is limited, which reduces the possibility of the protective cover 3 falling off, and further ensures the protective effect of the protective cover 3 on the nozzle 1.

[0037] The working process and beneficial effects of the utility model are as follows:

[0038] When the user needs to perform a spraying operation, the motor 6 can be started. At this time, the motor 6 will synchronously drive the stirring rod 7 to rotate. At this time, the stirring rod 7 will stir the raw materials inside the storage container 4. At the same time, the stirring rod 7 will drive the fixed disk 8 to rotate during the rotation process. At this time, the fixed disk 8 drives the first magnetic block 9 to rotate synchronously. When the first magnetic block 9 rotates to a certain position, the first magnetic block 9 is located at the lower side of the second magnetic block 13. At this time, the second magnetic block 13 will drive the linkage disk 12 to move upward under the push of the magnetic effect. While the linkage disk 12 moves, it will synchronously cause the rotating rod 17 to rotate. At this time, the rotating rod 17 will push the limit block 16 to move along the limit rod 10. Under the limiting action of the limit rod 10, the stability of the movement of the linkage disk 12 can be improved, and the fixed rod 14 can be driven to move through the linkage disk 12, so that the fixed rod 14 drives the scraper plate 15 to move inside the connecting member 5, and scrapes the raw materials attached to the inner wall of the connecting member 5, thereby avoiding the phenomenon that the connecting member 5 is blocked due to the accumulation of raw materials.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A spray gun device for plasma spraying; comprising a spray head (1), a connecting piece (5) penetrating the lower side of the spray head (1), a squeezing handle (2) being arranged at the rear side of the spray head (1), a protective cover (3) being nested at the outer end of the spray head (1), and a storage container (4) being arranged at the lower end of the connecting piece (5); It is characterized in that Also includes: A limit seat (11), the limit seat (11) is fixedly connected to the interior of the storage container (4), a limit rod (10) is fixedly connected to the limit seat (11), the outer end of the limit rod (10) is slidably connected to a limit block (16), and a cleaning mechanism is provided between the limit block (16) and the interior of the storage container (4) to prevent the connection member (5) from being blocked; The cleaning mechanism comprises a linkage disk (12), a second magnetic block (13), a fixed rod (14) and a scraper plate (15); the lower surface of the limit block (16) is hinged with a rotating rod (17); the side of the linkage disk (12) and the lower end of the rotating rod (17) are hinged to each other; the second magnetic block (13) is fixedly connected to the lower surface of the linkage disk (12); the upper surface of the linkage disk (12) is fixedly connected to the fixed rod (14); and the scraper plate (15) is fixedly connected to the side of the fixed rod (14).

2. A spray gun device for plasma spraying according to claim 1, characterized in that: The lower surface of the storage container (4) is fixedly connected to a motor (6), and the output end of the motor (6) is fixedly connected to a stirring rod (7), and the stirring rod (7) is nested and connected to the interior of the storage container (4), the upper end of the stirring rod (7) is fixedly connected to a fixed disk (8), and the upper surface of the fixed disk (8) is fixedly connected to a first magnetic block (9).

3. A spray gun device for plasma spraying according to claim 1, characterized in that: The rotating rod (17) is provided in two groups symmetrically about the center point of the linkage disk (12); the limit block (16) forms a sliding structure with the limit rod (10) through the rotating rod (17); and the scraping plate (15) is provided in multiple groups vertically distributed along the outer side of the fixed rod (14).

4. A spray gun device for plasma spraying according to claim 1, characterized in that: The second magnetic block (13) has the same magnetic properties as the first magnetic block (9); the linkage disk (12) drives the fixing rod (14) through the second magnetic block (13) to form a sliding structure; and the outer side of the scraper plate (15) is in contact with the connecting piece (5).

5. The spray gun device for plasma spraying according to claim 1, characterized in that: It also includes a docking rod (19) and a return spring (20); The protective cover (3) is provided with a docking hole (18), the side of the nozzle (1) is nested and connected with a docking rod (19), and the docking rod (19) is connected to the outer side of the nozzle (1) via a return spring (20).

6. A spray gun device for plasma spraying according to claim 5, characterized in that: The docking rods (19) are arranged in two groups symmetrically about the center point of the spray head (1), and the number of the docking rods (19) is equal to the number of the docking holes (18).

7. A spray gun device for plasma spraying according to claim 6, characterized in that: The docking rod (19) forms an elastic structure with the spray head (1) via a return spring (20), and the outer end of the docking rod (19) is docked to the inside of the docking hole (18).

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