Target material spraying machine spray gun capable of automatically cleaning accumulated burls

Abstract

The utility model discloses a target material spraying machine spray gun capable of automatically cleaning accumulated burls, which comprises a spray gun body, an accumulated burl cleaning device and a control device, the spray gun body is provided with a gun nozzle and a powder feeding pipe, the powder feeding pipe is positioned on one side of the gun nozzle, the accumulated burl cleaning device comprises a mounting frame, a linear cylinder and an accumulated burl push rod, and the linear cylinder is connected with the control device. The mounting frame is fixedly mounted on one side of the spray gun body, the linear air cylinder is fixedly mounted on the mounting frame, the first end of the build-up push rod is fixedly connected with a piston rod of the linear air cylinder, the second end of the build-up push rod is provided with a shoveling plane used for shoveling build-up, and the build-up push rod slides front and back towards the gun nozzle and the powder feeding pipe. And cleaning gaps are respectively formed between the accumulation push rod and the gun nozzle and between the accumulation push rod and the powder feeding pipe. The accumulated tumor on the gun nozzle and the powder feeding pipe is directly shoveled through the accumulated tumor push rod moving linearly, the removing effect is improved, the accumulated tumor can be thoroughly removed by moving the accumulated tumor push rod back and forth once, repeated moving for removing is not needed, the accumulated tumor removing efficiency is improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of target material spraying machines, in particular to a target material spraying machine spray gun capable of automatically cleaning nodules. Background Art

[0002] When the target material is produced, it is necessary to use a target sprayer to spray its surface. The target sprayer is a plasma sprayer that heats silicon powder or other metal powder coating to a molten or semi-molten state, and sprays it onto the surface of the prepared target base tube with a high-speed flame flow to form a dense silicon coating or other conductive coating. During the spraying process, the gun nozzle and powder delivery nozzle of the target sprayer are prone to spark nodules after a long period of spraying. The nodules need to be removed regularly, otherwise it will affect the flame flow of the target sprayer and damage the coating. In the prior art, the removal method of the nodules is mainly manual, and the nodules are manually knocked off with bamboo sticks. There are also some automatic removal devices such as the Chinese utility model patent: CN201820245598.4, a target sprayer nodule removal device, which drives the nodule head to swing by a rotating cylinder, thereby simulating manual left and right swinging on the front side of the gun nozzle to automatically remove the nodules, and then uses compressed air through the blowing copper tube to purge the powder delivery nozzle. However, when cleaning the gun nozzle, the nodule driver is swung left and right. When the length of the nodule driver is long, the end of the nodule driver will shake, and it is often necessary to swing back and forth several times to completely remove the nodule. It is also easy to interfere with the gun nozzle, which can easily cause deformation and damage to the gun nozzle. The nodule driver that swings left and right requires a large lateral space and cannot be used on a target spraying machine with a double powder feeding nozzle. It has certain limitations in use. When purging the powder feeding nozzle, the compressed air contains oil and moisture, which can easily contaminate the powder. Therefore, it is necessary to improve it. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a target material spraying machine spray gun that automatically cleans the nodules, thereby improving the surface smoothness of the target material, and the nodules can be completely removed in one action, thereby improving the efficiency of nodule removal and improving production efficiency. No compressed air purging is required, and secondary pollution caused by oil and water is prevented.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a target material spraying machine spray gun for automatically cleaning nodules, including a spray gun body, a nodule cleaning device and a control device, the control device is respectively connected to the nodule cleaning device and the spray gun body, the spray gun body is provided with a gun nozzle and a powder feeding pipe, the powder feeding pipe is located on one side of the gun nozzle, the nodule cleaning device includes a mounting frame, a linear cylinder and a nodule push rod, the linear cylinder is connected to the control device, the mounting frame is fixedly installed on one side of the spray gun body, the linear cylinder is fixedly installed on the mounting frame, the first end of the nodule push rod is fixedly connected to the piston rod of the linear cylinder, the second end of the nodule push rod is provided with a scraping plane for scraping nodules, the nodule push rod slides back and forth toward the gun nozzle and the powder feeding pipe, and there is a cleaning gap between the nodule push rod and the gun nozzle and the powder feeding pipe respectively.

[0005] In a further technical solution, the mounting frame includes a mounting ring and a mounting plate, the mounting ring is sleeved on the spray gun body, the fixing plate is fixedly mounted on one side of the mounting ring, and the linear cylinder is fixedly mounted on the fixing plate.

[0006] In a further technical solution, a connecting plane is provided on one side of the mounting ring, and at least two connecting threaded holes are opened on the connecting plane. The connecting threaded holes penetrate the mounting ring, and two mounting grooves are provided along the length direction of the mounting plate. A connecting mounting hole is opened on the side of the mounting groove facing the mounting ring, and each connecting mounting hole is penetrated by a connecting screw, which is threadedly connected to the connecting threaded hole and passes through the connecting threaded hole to cooperate with the spray gun body.

[0007] In a further technical solution, the control device includes a controller, a compressed air source, an agglomeration removal intermediate relay and an agglomeration removal solenoid valve, the compressed air source is connected to the agglomeration removal solenoid valve, the agglomeration removal solenoid valve is connected to the linear cylinder, the controller is electrically connected to the agglomeration removal intermediate relay, and the agglomeration removal intermediate relay is electrically connected to the agglomeration removal solenoid valve.

[0008] In a further technical solution, the linear cylinder adopts a double-axis cylinder, which is provided with two piston rods. The outer ends of the two piston rods are connected to push plates, and the rear end of the nodular push rod extends to the left and right sides with mounting parts to form a "T"-shaped nodular push rod. The rear end of the nodular push rod is fixed to the push plate by another connecting screw.

[0009] In a further technical solution, the tumor push rod is provided with a tumor scraping groove along the length direction, and the tumor scraping groove runs through the tumor push rod.

[0010] In a further technical solution, the cleaning gap is 0.1 to 10 mm.

[0011] In a further technical solution, the spray gun body is provided with two powder delivery pipes, which are respectively arranged on the left and right sides of the gun nozzle, and there is a cleaning gap between the left and right sides of the nodule push rod and the two powder delivery pipes, and between the bottom of the nodule push rod and the gun nozzle.

[0012] In a further technical solution, a powder feeding fixing plate is provided on the upper part of the spray gun body, a through hole penetrating the powder feeding fixing plate is provided in the middle part of the powder feeding fixing plate, the gun nozzle is arranged in the through hole, and two powder feeding fixing frames are provided on the top surface of the powder feeding fixing plate, the two powder feeding fixing frames are respectively located on the left and right sides of the through hole, the powder feeding fixing frame is provided with a powder feeding mounting hole, and the powder feeding pipe is passed through the powder feeding mounting hole.

[0013] In a further technical solution, the powder feeding installation hole is provided with an internal thread, the powder feeding pipe is provided with an external thread, the powder feeding pipe is threadedly connected to the powder feeding installation hole, and the powder feeding pipe is also threadedly connected with at least one locking nut, and the locking nut abuts against the powder feeding fixing frame.

[0014] After adopting the above structure, the advantages of the utility model compared with the prior art are: the tumors on the gun nozzle and the powder feeding tube are directly removed by the linearly moving tumor push rod, thereby improving the cleaning effect; the tumor push rod can completely remove the tumor by moving back and forth once, and there is no need to move it repeatedly for cleaning, thereby improving the tumor removal efficiency and improving the production efficiency; two powder feeding tubes are respectively arranged on both sides of the gun nozzle to increase the powder feeding amount, and the tumor push rod can remove the tumors on the gun nozzle and the two powder feeding tubes at the same time, thereby further improving the tumor removal efficiency; the structure is simple, the cost is low, no compressed air auxiliary blowing is required, secondary pollution caused by oil and water is prevented, and the surface finish of the target material is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is an exploded view of the utility model;

[0018] Figure 3 It is a front view of the utility model;

[0019] Figure 4 It is a schematic diagram of the gas circuit connection of the utility model;

[0020] Figure 5 It is the circuit principle diagram of the control device of the utility model;

[0021] Figure 6 It is a connection diagram of the controller of the utility model.

[0022] In the figure:

[0023] 1 spray gun body, 11 gun nozzle, 12 powder delivery pipe;

[0024] 21 mounting ring, 211 connecting plane, 212 connecting threaded hole, 22 mounting plate, 221 mounting groove, 222 connecting mounting hole, 23 connecting screw,;

[0025] 3 linear cylinder, 31 piston rod, 32 push plate;

[0026] 4 a tumor push rod, 41 a tumor scraping groove, 42 a plane removal, 43 a clearance cleaning part, 44 a mounting part;

[0027] 51 controller, 52 compressed air source, 53 anode removal intermediate relay, 54 anode removal solenoid valve;

[0028] 6 powder feeding fixing plate, 61 through hole, 62 powder feeding fixing frame, 63 powder feeding mounting hole, 64 locking nut. DETAILED DESCRIPTION

[0029] The following are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention.

[0030] A target material spraying machine spray gun for automatically cleaning nodules, such as Figures 1 to 6 As shown, it includes a spray gun body 1, a tumor cleaning device and a control device, the control device is respectively connected to the tumor cleaning device and the spray gun body 1, the spray gun body 1 is provided with a gun nozzle 11 and a powder delivery pipe 12, the powder delivery pipe 12 is located at one side of the gun nozzle 11, the tumor cleaning device includes a mounting frame, a linear cylinder 3 and a tumor push rod 4, the linear cylinder 3 is connected to the control device, the mounting frame is fixedly installed on one side of the spray gun body 1, the linear cylinder 3 is fixedly installed on the mounting frame, the first end of the tumor push rod 4 is fixedly connected to the piston rod 31 of the linear cylinder 3, the second end of the tumor push rod 4 is provided with a scraping plane 42 for scraping the tumor, the tumor push rod 4 slides back and forth toward the gun nozzle 11 and the powder delivery pipe 12, and the tumor push rod 4 has a cleaning gap 43 with the gun nozzle 11 and the powder delivery pipe 12 respectively. The conventional target material spraying machine spray gun needs manual cleaning of the tumor, while the automatic tumor cleaning spray gun drives the rod to swing and knock off the tumor by rotating the cylinder, and then cooperates with compressed air purging. This method cannot remove the tumor in one go, and the cleaning effect is poor. It also needs to cooperate with compressed air purging. The water and oil in the compressed air will cause secondary pollution and affect the surface finish of the target material. The utility model directly removes the tumor on the gun nozzle 11 and the powder feeding tube 12 by a linearly moving tumor push rod 4, so as to improve the cleaning effect. The tumor push rod 4 can completely remove the tumor by moving back and forth once, without repeated movement and cleaning, thereby improving the tumor removal efficiency and improving production efficiency. The tumor push rod 4 can simultaneously remove the tumor from the gun nozzle 11 and the powder feeding tube 12, further improving the tumor removal efficiency, with a simple structure and low cost, and no need for compressed air auxiliary purging, thereby preventing secondary pollution caused by oil and water and improving the surface finish of the target material.

[0031] Specifically, the mounting frame includes a mounting ring 21 and a mounting plate 22. The mounting ring 21 is sleeved on the spray gun body 1, the fixing plate is fixedly mounted on one side of the mounting ring 21, and the linear cylinder 3 is fixedly mounted on the fixing plate. The mounting plate 22 is fixed on the spray gun body 1 through the mounting ring 21 to facilitate the installation of the linear cylinder 3. The structure is simple and the cost is low. By adjusting the height of the mounting ring 21, the cleaning gap 43 between the gun nozzle 11 and the tumor push rod 4 can be adjusted.

[0032] Specifically, a connecting plane 211 is provided on one side of the mounting ring 21, and at least two connecting threaded holes 212 are provided on the connecting plane 211. The connecting threaded holes 212 penetrate the mounting ring 21, and two mounting grooves 221 are provided along the length direction of the mounting plate 22. The mounting groove 221 is provided with a connecting mounting hole 222 on one side facing the mounting ring 21, and each connecting mounting hole 222 is penetrated with a connecting screw 23, and the connecting screw 23 is threadedly connected with the connecting threaded hole 212 and passes through the connecting threaded hole 212 to abut against the spray gun body 1. The mounting ring 21 and the mounting plate 22 adopt a split structure, and the mounting ring 21 and the mounting plate 22 are connected by the connecting screw 23, and the mounting ring 21 is locked on the spray gun body 1 for a second time to prevent the mounting ring 21 from rotating. The structure is simple and the cost is low. The connecting screw 23 can be locked or loosened by a tool through the mounting groove 221, and the disassembly is convenient.

[0033] Specifically, the control device includes a controller 51, a compressed air source 52, an agglomeration removal intermediate relay 53 and an agglomeration removal solenoid valve 54. The compressed air source 52 is connected to the agglomeration removal solenoid valve 54, the agglomeration removal solenoid valve 54 is connected to the linear cylinder 3, the controller 51 is electrically connected to the agglomeration removal intermediate relay 53, and the agglomeration removal intermediate relay 53 is electrically connected to the agglomeration removal solenoid valve 54. The controller 51 adopts a Delta DVP-32EH00T3 programmable controller, such as Figure 5 and Figure 6 As shown, the output terminal Y10 of the controller 51 sends a tumor clearing control signal to the tumor clearing intermediate relay 53. After the tumor clearing intermediate relay 53 receives the tumor clearing control signal, the coil of the tumor clearing intermediate relay 53 obtains a 24V DC power supply, and the normally open contact of the tumor clearing intermediate relay 53 is closed, so that the tumor clearing solenoid valve 54 obtains a 220V AC power supply to drive the linear cylinder 3 to operate; after the tumor clearing is completed, the output terminal Y10 of the controller 51 stops outputting the tumor clearing control signal, the tumor clearing intermediate relay 53 cannot receive the tumor clearing control signal, the coil of the tumor clearing intermediate relay 53 loses power, and its normally open contact is reset and disconnected, so that the tumor clearing solenoid valve 54 loses power and the linear cylinder 3 stops running. The control method is simple, reliable and low-cost. The tumor clearing solenoid valve 54 adopts a two-position five-way electromagnetic reversing valve, such as Figure 4As shown, after the anode accumulation clearing solenoid valve 54 receives 220V AC power supply, the valve core of the anode accumulation clearing solenoid valve 54 moves, causing the rear end of the linear cylinder 3 to intake air and the front end to exhaust air, driving the piston rod 31 of the linear cylinder 3 to extend forward, thereby pushing the anode accumulation push rod 4 to move toward the gun nozzle 11 and the powder delivery pipe 12, and the anode accumulation push rod 4 pushes and removes the anode accumulation through the removing plane 42; after the anode accumulation is removed, the anode accumulation clearing solenoid valve 54 loses power, and the valve core of the anode accumulation clearing solenoid valve 54 is reset, causing the front end of the linear cylinder 3 to intake air and the rear end to exhaust air, driving the piston rod 31 to move backward and reset, thereby completing the anode accumulation clearing action.

[0034] Specifically, the linear cylinder 3 adopts a double-axis cylinder, which is provided with two piston rods 31, and the outer ends of the two piston rods 31 are connected to push plates 32. The rear end of the tumor push rod 4 extends to the left and right sides with mounting parts 44 to form a "T"-shaped tumor push rod 4, and the rear end of the tumor push rod 4 is fixedly mounted on the push plate 32 by another connecting screw 23. The mounting part 44 is connected to the push plate 32, and the contact area between the push plate 32 and the tumor push rod 4 is increased to prevent the tumor push rod 4 from shaking. The double-axis cylinder can increase the working force and keep the tumor push rod 4 moving smoothly.

[0035] Specifically, the tumor push rod 4 is provided with a tumor scraping groove 41 along the length direction, and the tumor scraping groove 41 runs through the tumor push rod 4. The tumor scraping groove 41 reduces the weight of the tumor push rod 4, improves the actuating force of the linear cylinder 3, and at the same time, when the tumor push rod 4 moves backward, the inner wall of the tumor scraping groove 41 scrapes the gun nozzle 11 for a second time, further improving the cleaning degree.

[0036] Specifically, the cleaning gap 43 is 0.1 to 10 mm. Preferably, the cleaning gap 43 is 0.3 to 1 mm. By changing the size of the cleaning gap 43, tumors of different sizes can be removed. The smaller the cleaning gap 43, the better the removal effect.

[0037] Specifically, the spray gun body 1 is provided with two powder delivery pipes 12, which are respectively arranged on the left and right sides of the gun nozzle 11, and there is a cleaning gap 43 between the left and right sides of the nodule push rod 4 and the two powder delivery pipes 12, and between the bottom of the nodule push rod 4 and the gun nozzle 11. The two powder delivery pipes 12 deliver powder at the same time, which increases the powder delivery amount and the spraying effect. In the process of moving forward, the nodule push rod 4 removes nodules from the gun nozzle 11 and the two powder delivery pipes 12 at the same time, without having to remove them one by one, and the removal efficiency is high.

[0038] Specifically, a powder delivery fixing plate 6 is provided on the upper part of the spray gun body 1, a through hole 61 penetrating the powder delivery fixing plate 6 is provided in the middle part of the powder delivery fixing plate 6, the gun nozzle 11 is provided in the through hole 61, and two powder delivery fixing frames 62 are provided on the top surface of the powder delivery fixing plate 6, the two powder delivery fixing frames 62 are respectively located on the left and right sides of the through hole 61, the powder delivery fixing frame 62 is provided with a powder delivery installation hole 63, and the powder delivery pipe 12 is penetrated in the powder delivery installation hole 63. The powder delivery fixing frame 62 is formed on the powder delivery fixing plate 6, and the two powder delivery pipes 12 are fixed by the powder delivery fixing frame 62, so that the two powder delivery pipes 12 are respectively located on the left and right sides of the accumulation push rod 4, with a simple structure and low cost.

[0039] Specifically, the powder delivery installation hole 63 is provided with an internal thread, the powder delivery pipe 12 is provided with an external thread, the powder delivery pipe 12 is threadedly connected to the powder delivery installation hole 63, and the powder delivery pipe 12 is also threadedly connected with at least one locking nut 64, and the locking nut 64 abuts against the powder delivery fixing frame 62. The powder delivery pipe 12 is threadedly connected to the powder delivery fixing frame 62, and the cleaning gap 43 between the powder delivery pipe 12 and the accumulation push rod 4 is adjusted by rotating the powder delivery pipe 12. After the adjustment is completed, the powder delivery pipe 12 is locked by the locking nut 64 to prevent the powder delivery pipe 12 from accidentally rotating and causing displacement. The locking nut 64 uses a locking nut or a gasket is added between the locking nut 64 and the powder delivery fixing frame 62 to improve the locking effect.

[0040] It should be understood that the terms "front", "rear", "left", "right", etc. indicate directions or positional relationships based on the Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0041] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A target material spraying machine spray gun for automatically cleaning nodules, comprising a spray gun body (1), a nodule cleaning device and a control device, wherein the control device is connected to the nodule cleaning device and the spray gun body (1) respectively, the spray gun body (1) is provided with a gun nozzle (11) and a powder feeding pipe (12), the powder feeding pipe (12) is located at one side of the gun nozzle (11), and is characterized in that: The nodule cleaning device comprises a mounting frame, a linear cylinder (3) and a nodule push rod (4), wherein the linear cylinder (3) is connected to a control device, the mounting frame is fixedly mounted on one side of a spray gun body (1), the linear cylinder (3) is fixedly mounted on the mounting frame, the first end of the nodule push rod (4) is fixedly connected to a piston rod (31) of the linear cylinder (3), the second end of the nodule push rod (4) is provided with a scraping plane (42) for scraping away the nodule, the nodule push rod (4) slides back and forth toward a gun nozzle (11) and a powder delivery pipe (12), and a cleaning gap (43) is respectively formed between the nodule push rod (4) and the gun nozzle (11) and the powder delivery pipe (12).

2. The target material spraying machine spray gun for automatically cleaning nodules according to claim 1 is characterized in that: The mounting frame comprises a mounting ring (21) and a mounting plate (22); the mounting ring (21) is sleeved on the spray gun body (1); the fixing plate is fixedly mounted on one side of the mounting ring (21); and the linear cylinder (3) is fixedly mounted on the fixing plate.

3. The target material spraying machine spray gun for automatically cleaning nodules according to claim 2 is characterized in that: A connecting plane (211) is provided on one side of the mounting ring (21), and at least two connecting threaded holes (212) are provided on the connecting plane (211). The connecting threaded holes (212) penetrate the mounting ring (21). Two mounting grooves (221) are provided along the length direction of the mounting plate (22). A connecting mounting hole (222) is provided on one side of the mounting groove (221) facing the mounting ring (21). A connecting screw (23) is passed through each connecting mounting hole (222). The connecting screw (23) is threadedly connected to the connecting threaded hole (212) and passes through the connecting threaded hole (212) to abut against the spray gun body (1).

4. The target material spraying machine spray gun for automatically cleaning nodules according to claim 1 is characterized in that: The control device comprises a controller (51), a compressed air source (52), an agglomeration removal intermediate relay (53) and an agglomeration removal solenoid valve (54); the compressed air source (52) is connected to the agglomeration removal solenoid valve (54); the agglomeration removal solenoid valve (54) is connected to the linear cylinder (3); the controller (51) is electrically connected to the agglomeration removal intermediate relay (53); the agglomeration removal intermediate relay (53) is electrically connected to the agglomeration removal solenoid valve (54).

5. The target material spraying machine spray gun for automatically cleaning nodules according to claim 1, characterized in that: The linear cylinder (3) adopts a double-axis cylinder, which is provided with two piston rods (31). The outer ends of the two piston rods (31) are connected to push plates (32). The rear end of the agglomerated push rod (4) extends to the left and right sides with mounting parts (44) to form a "T"-shaped agglomerated push rod (4). The rear end of the agglomerated push rod (4) is fixedly mounted on the push plate (32) by another connecting screw (23).

6. The target material spraying machine spray gun for automatically cleaning nodules according to claim 5, characterized in that: The tumor accumulation push rod (4) is provided with a tumor scraping groove (41) along the length direction, and the tumor scraping groove (41) runs through the tumor accumulation push rod (4).

7. The target material spraying machine spray gun for automatically cleaning nodules according to claim 1, characterized in that: The cleaning gap (43) is 0.1-10 mm.

8. A target material spraying machine spray gun for automatically cleaning nodules according to any one of claims 1 to 7, characterized in that: The spray gun body (1) is provided with two powder delivery pipes (12), which are respectively arranged on the left and right sides of the gun nozzle (11), and a cleaning gap (43) is respectively provided between the left and right sides of the nodule push rod (4) and the two powder delivery pipes (12), and between the bottom of the nodule push rod (4) and the gun nozzle (11).

9. The target material spraying machine spray gun for automatically cleaning nodules according to claim 8, characterized in that: A powder delivery fixing plate (6) is arranged on the upper part of the spray gun body (1), a through hole (61) penetrating the powder delivery fixing plate (6) is provided in the middle part of the powder delivery fixing plate (6), the gun nozzle (11) is arranged in the through hole (61), two powder delivery fixing frames (62) are arranged on the top surface of the powder delivery fixing plate (6), the two powder delivery fixing frames (62) are respectively located on the left and right sides of the through hole (61), the powder delivery fixing frames (62) are provided with a powder delivery installation hole (63), and the powder delivery pipe (12) is penetrated in the powder delivery installation hole (63).

10. The target material spraying machine spray gun with automatic cleaning of nodules according to claim 9, characterized in that: The powder delivery installation hole (63) is provided with an internal thread, and the powder delivery pipe (12) is provided with an external thread. The powder delivery pipe (12) is threadedly connected to the powder delivery installation hole (63). The powder delivery pipe (12) is also threadedly connected to at least one locking nut (64), and the locking nut (64) abuts against the powder delivery fixing frame (62).

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