Bipolar lateral spraying equipment

Abstract

The utility model provides bipolar lateral spraying equipment, which belongs to the technical field of spraying equipment and comprises a support frame. The number of the fixed seats is multiple, and the multiple fixed seats are fixedly connected to the upper end of the supporting frame; the powder spraying device comprises a plurality of spraying assemblies, each spraying assembly comprises a spraying gun, a rotating groove, a rotating ring, a rotating ring, a spraying pipe, a spiral air hole, a spiral spraying opening and an air connecting pipe, and all positions of the surface of a sprayed object can fully absorb powder by increasing the powder spraying range.

Description

Technical Field

[0001] The utility model belongs to the technical field of sheet metal spraying equipment, and in particular relates to a bipolar side spraying equipment. Background Art

[0002] Spray coating is a crucial process in sheet metal fabrication. This involves applying powder to sheet metal parts. Existing techniques typically involve applying powder using spray equipment, typically electrostatic powder spraying. The operating principle of electrostatic powder spraying is nearly identical to that of conventional liquid coatings, differing in that the powder is dispersed rather than atomized. The coating sprayed from an electrostatic powder spray gun imparts a negative charge to the powder particles as it is dispersed. These charged particles, influenced by airflow (or other forces such as centrifugal force) and electrostatic attraction, are applied to the grounded substrate, where they are then melted and solidified into a film. Electrostatic powder spraying is the dominant powder coating method in the industrial coating industry.

[0003] China's authorization announcement number is "CN210171735U", and the announcement date is 2020.03.24. It discloses an electrostatic powder spraying equipment, including a powder processing equipment, and a connecting pipe is connected to the top of the powder processing equipment. The front end of the connecting pipe is connected to a nozzle. The nozzle is a circular pipe, and a rubber sleeve is fixedly installed on the outer wall of the nozzle. The rubber sleeve is provided to make it convenient for the user to hold the nozzle. The utility model is provided with an opening, and the lower wall of the opening is gradually inclined downward from front to back, so when the paint is sprayed from the back, the paint will pass through the opening and then be sprayed away. Then the paint attached to the inner wall above the opening will drip down due to gravity, and then the paint attached to the lower wall will slide backward due to the inclined surface below it, and will not block the opening, thereby greatly avoiding the risk of the opening being blocked.

[0004] The above-mentioned new type of attached coating slides backward and will not block the opening, which greatly avoids the risk of the opening being blocked. However, when spraying the spray object, the fixation of the nozzle makes the spraying direction of the powder fixed, and the spraying surface is limited. In addition, when the electrode adsorbs the powder, if there is individual powder with a relatively large diameter, it will not be able to be broken up, which will result in the presence of individual overly large powders, resulting in a small powder range on the surface of the spray object. In addition, the spray gun needs to be manually adjusted in height, which makes the spraying process inconvenient. Utility Model Content

[0005] The purpose of the utility model is to provide a bipolar side spraying device, which can crush individual larger powders, increase the surface range of the sprayed object to a wider range, and can adjust the height, thereby improving the efficiency of the spraying.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A bipolar side spraying device comprises a wall frame, a support frame is provided on the wall frame; more than two fixing seats are provided on the support frame, a spray assembly is provided on the fixing seat, and a driving device is provided on the wall frame, the driving device is connected to the support frame to drive the support frame to move up and down, and the spray assembly comprises a spray gun and an air pipe, the spray gun comprises a nozzle, a hollow mounting groove is provided in the nozzle, a spiral piece is provided in the mounting groove, and the groove arm of the mounting groove abuts against the outer wall of the spiral piece, one end of the nozzle is detachably connected to a nozzle, a spray hole is provided on the nozzle, a second abutting groove is provided at the end of the nozzle close to the spiral piece, the end face of the second abutting groove abuts against one end of the spiral piece, the other end of the nozzle is detachably connected to the air pipe, a first abutting groove is provided at the end of the nozzle close to the air pipe, the first abutting groove abuts against the other end of the spiral piece, and the opening of the nozzle away from the spiral piece is larger at the upper end and smaller at the lower end.

[0008] The above arrangement is such that a spiral blade is provided in the nozzle, and the spiral blade abuts in the mounting groove, and both ends abut against the nozzle and the inner wall of the nozzle respectively. When spraying powder through the air pipe, the spiral blade can crush large particles of powder, so that the particle size of the powder entering the nozzle is consistent. Then, the support frame is driven up and down by the driving device to facilitate the position adjustment of the spray gun, thereby improving the work efficiency of spraying. In addition, the opening on one end face of the nozzle is a trumpet-shaped opening, so that the powder entering the nozzle can be sprayed over a wider range, thereby ensuring a wider range of spraying.

[0009] Furthermore, the circumferential surface of the fixing seat is provided with a thread groove, the circumferential surface of the spray gun is provided with a connecting groove, and the thread groove and the connecting groove are threadedly connected with bolts.

[0010] The above arrangement is achieved by placing the spray gun into the threaded groove and then fixing the spray gun and the fixing seat by bolts.

[0011] Furthermore, the driving device includes a driving plate and a screw. One side end of the support frame is fixedly connected to the driving plate. The upper end of the driving plate is provided with a threaded sleeve, and the screw is connected to the inner thread of the threaded sleeve.

[0012] The above setting is threadedly connected to the threaded sleeve through the screw to facilitate the movement of the drive plate

[0013] Furthermore, a wall bracket is provided on one side of the driving plate, the lower end of the wall bracket is fixedly connected to a rotating sleeve, the screw rotates in the rotating sleeve, the upper end of the wall bracket is fixedly connected to a motor, and the output end of the motor is fixed to the screw.

[0014] In the above arrangement, the motor drives the screw to rotate, and the screw and the threaded sleeve form a screw-nut structure, so that the screw drives the drive plate to move up and down.

[0015] Furthermore, the upper end of the wall-connecting frame is fixedly connected to a limiting sliding rod, the upper end of the driving plate is provided with a limiting sliding hole, and the limiting sliding rod slides in the limiting sliding hole.

[0016] The above arrangement can limit the lifting position of the driving device by setting the limiting slide bar.

[0017] Furthermore, the spray holes include more than two first spray holes and more than two second spray holes, and the more than two first spray holes are evenly spaced along the circumferential direction of the spray hole, the more than two second spray holes are evenly spaced along the radial direction of the spray hole, and the more than two second spray holes arranged in the same radial direction form a second spray hole group, and the more than two groups of second spray hole groups are evenly spaced along the circumferential direction.

[0018] The above arrangement ensures spraying in the circumferential direction of the nozzle through the first spray hole, the second spray hole group ensures spraying in the radial direction, and two or more second spray holes ensure spraying at intervals in the radial direction.

[0019] Furthermore, the intersection area of ​​the areas sprayed by two adjacent nozzle holes on the object to be sprayed is less than 20% of the spraying area of ​​one nozzle hole.

[0020] The above arrangement can control the intersection area of ​​the two spray holes by controlling the intersection area, thereby further controlling the uniformity of the spraying while making the spraying range wider.

[0021] Furthermore, the angle between the upper opening and the lower opening of the second spray hole is B, the distance between the spray gun and the object to be sprayed is h, and the length of the upper opening of the second spray hole is M, then the spraying range of the second spray hole S2=M+2*ctan(180-B)*h.

[0022] The above arrangement can conveniently control the distance between the spray gun and the object to be sprayed, thereby ensuring that two adjacent second spray holes can spray evenly.

[0023] Furthermore, the angle between the upper opening and the lower opening of the first spray hole is A, the distance between the spray gun and the object to be sprayed is H, and the length of the upper opening of the second spray hole is L, then the spraying range of the second spray hole S1=L+2*ctan(180-B)*H.

[0024] The above arrangement can conveniently control the distance between the spray gun and the object to be sprayed, thereby ensuring that two adjacent second spray holes can spray evenly.

[0025] Furthermore, the spiral piece is provided with two or more through holes spaced apart along the length direction of the spiral piece.

[0026] The above arrangement, by arranging a plurality of through holes on the spiral piece, enables a part of the powder to enter the spray opening through the through holes, so as to realize the multi-directionality of the powder entering the spray opening. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0028] Figure 1 It is a structural perspective view of the present application.

[0029] Figure 2 It is an exploded view of the first structure in the present application.

[0030] Figure 3 It is an exploded view of the second structure in the present application.

[0031] Figure 4 It is a structural schematic view of the spray gun in the present application.

[0032] Figure 5 It is an exploded sectional view of the spray gun in the present application.

[0033] Figure 6 It is a sectional view of the spray gun in the present application.

[0034] Figure 7 It is Figure 6 It is an enlarged view of A in the middle.

[0035] Figure 8 It is a schematic view of the relationship between the to-be-sprayed object and the spray hole in the present application.

[0036] In the figure: 01, to-be-sprayed object; 1, support frame; 2, fixed seat; 3, spray gun; 4, mounting groove; 5, rotating ring; 6, first abutting groove; 7, spray pipe; 8, spiral piece; 9, spray opening; 10, gas connecting pipe; 11, threaded groove; 12, connecting groove; 13, bolt; 14, driving plate; 15, wall connecting frame; 16, rotating sleeve; 17, screw rod; 18, motor; 19, threaded sleeve; 20, limiting sliding hole; 21, limiting sliding rod; 22, second abutting groove; 101, first spray hole; 102, second spray hole. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Example

[0039] See also Figures 1-8 The utility model provides the following technical solutions: a bipolar side spraying device, comprising: a wall frame, a support frame 1 is provided on the wall frame, and two or more fixing seats 2 are provided on the support frame 1. In this embodiment, there are two fixing seats 2, and both fixing seats 2 are fixedly connected to the upper end of the support frame 1;

[0040] A spray assembly is provided on the fixed seat 2, and the spray assembly includes a spray gun and a nozzle 3. A hollow mounting groove is provided in the nozzle 3, and a spiral piece 8 is provided in the mounting groove, and the groove arm of the mounting groove abuts against the outer wall of the spiral piece 8. One end of the nozzle 3 is detachably connected to a nozzle 9, and a spray hole is provided on the nozzle 9. A second abutting groove 22 is provided at the end of the nozzle close to the spiral piece 8, and the end face of the second abutting groove 22 abuts against one end of the spiral piece 8. The other end of the nozzle 3 is detachably connected to the air connecting pipe 10, and a first abutting groove 6 is provided at the end of the nozzle 3 close to the air connecting pipe 10, and the first abutting groove 6 abuts against the other end of the spiral piece 8. The opening of the spray hole on the side away from the spiral piece 8 is larger at the upper end and smaller at the lower end.

[0041] In this embodiment, the spray holes include more than two first spray holes 101 and more than two second spray holes 102, and the more than two first spray holes 101 are evenly spaced along the circumferential direction of the nozzle, the more than two second spray holes 102 are evenly spaced along the radial direction of the nozzle, and the more than two second spray holes 102 arranged in the same radial direction form a second spray hole group. The two or more groups of second spray holes are evenly spaced along the circumferential direction. A fixing groove corresponding to the nozzle 7 is provided in the main body of the spray gun 3 (not shown in the figure). The installation is achieved by placing the spiral blade 8 into the nozzle 7 and then placing the nozzle 7 into the fixing groove, and two or more through holes 80 are evenly spaced along the extension direction of the spiral blade 8 on the spiral blade.

[0042] In a specific embodiment of the present invention, the support frame 1 is a fixing frame for the spray gun 3. Multiple spray guns 3 can be mounted on the support frame 1. The spray guns 3 use an electrostatic powder spraying method to form a bipolar connection between the spray powder and the sprayed object, thereby causing the powder to adhere to the sprayed object. An air connection pipe 10 is provided at the rear end of the spray gun 3 and is connected to a powder spraying supercharger (not shown in the figure). During powder spraying, pressurized powder-laden air is sprayed around the sprayed object through the nozzle 7 in the spray assembly. The spiral through holes 80 are multiple through holes of the same size. After the air enters the spiral through holes 80, the powder-laden airflow is finally ejected from the nozzle 9. The rotating airflow causes the powder to be sprayed in all directions, thereby increasing the powder spraying range and avoiding the situation where the powder spraying range is small.

[0043] For details, please refer to Figures 1-4 The circumferential surface of each fixing seat 2 is provided with a thread groove 11, and the circumferential surface of each spray gun 3 is provided with a connecting groove 12. The thread groove 11 and the connecting groove 12 are internally threadedly connected with a bolt 13.

[0044] In this embodiment: the spray gun 3 can be fixed in the fixing seat 2. According to different spraying conditions, multiple spray guns 3 can be fixed in different fixing seats 2. The spray gun 3 is inserted into the fixing seat 2, and the thread groove 11 and the connecting groove 12 are aligned. Then the bolt 13 is screwed in to fix the spray gun 3. After that, the spray gun 3 is driven up and down by the driving device to spray the spray object.

[0045] For details, please refer to Figures 1-4 The drive device includes a drive plate 14 and a screw 17. The drive plate 14 is fixedly connected to one side of the support frame 1. A threaded sleeve 19 is provided on the upper end of the drive plate 14. The screw 17 is internally threadedly connected to the threaded sleeve 19. The drive plate 14 is threadedly connected to the screw 17 through the threaded sleeve 19. The drive plate 14 is arranged at the side end of the support frame 1 and does not affect the spraying operation of the device. The drive device drives the screw 17 to rotate to adjust the height of the support frame 1, thereby spraying different positions of the spray object.

[0046] For details, please refer to Figures 1-4 A wall bracket 15 is provided on one side of the driving plate 14. The lower end of the wall bracket 15 is fixedly connected to a rotating sleeve 16. The screw 17 rotates in the rotating sleeve 16. The upper end of the wall bracket 15 is fixedly connected to a motor 18. The output end of the motor 18 is fixedly connected to the screw 17.

[0047] In this embodiment: the wall bracket 15 is fixed on one side of the spray object fixing place, the lower end of the screw 17 rotates in the rotating sleeve 16, and the upper end is fixed to the output end of the motor 18. When the spraying work is carried out, the motor 18 drives the screw 17 to rotate, and then drives the support frame 1 to move up and down to spray the metal.

[0048] For details, please refer to Figures 1-4 The upper end of the wall frame 15 is fixedly connected to a limit slide rod 21 , and the upper end of the driving plate 14 is provided with a limit slide hole 20 , in which the limit slide rod 21 slides.

[0049] In this embodiment: the limiting slide rod 21 is arranged on the other side of the screw rod 17 and slides in the limiting slide hole 20. The limiting slide rod 21 is used to limit the movement of the support frame 1. When the screw rod 17 rotates, the driving plate 14 is restricted by the limiting slide rod 21 and cannot rotate, and can only move up and down.

[0050] like Figure 8 As shown, the intersection of the areas sprayed by two adjacent nozzles on the object to be sprayed is less than 20% of the spraying area of ​​one nozzle. The spray range can be controlled by controlling the distance between the nozzle and the object to be sprayed 01. For the angle A between the upper and lower openings of the first nozzle 101, the distance between the spray gun and the object to be sprayed 01 is H, and the length of the upper opening of the second nozzle is L, then the spray range of the second nozzle S1 = L + 2 * ctan (180 - B) * H. For the angle B between the upper and lower openings of the second nozzle 102, the distance between the spray gun and the object to be sprayed is h, and the length of the upper opening of the second nozzle is M, then the spray range of the second nozzle S2 = M + 2 * ctan (180 - B) * h.

[0051] The working principle and use process of the present invention are as follows: the support frame 1 is a fixing frame for the spray gun 3. Multiple spray guns 3 can be installed on the support frame 1. The spray gun 3 uses the electrostatic powder spraying method. The air pipe 10 is arranged at the rear end of the spray gun 3 and is connected to the supercharger of the spray powder. During powder spraying, the pressurized air with powder is sprayed around the spray object through the nozzle 7 in the spray assembly. The large group of powder is crushed by the spiral blade 8 and enters the spray hole of the nozzle 9 under the guidance of the spiral blade 8 and is sprayed out. Part of the powder enters the nozzle through the spiral air hole, thereby driving the air flow to rotate. Finally, the air flow with powder is sprayed out from the spiral nozzle 9. In addition, the upper end opening of the nozzle is larger than the lower end opening, so that the powder is sprayed in all directions by the rotating air flow, thereby increasing the spray range of the powder and avoiding the situation where the powder spray range is small.

Claims

1. A bipolar side spraying device, comprising a wall-mounted frame, a support frame disposed on the wall-mounted frame, two or more fixing seats disposed on the support frame, and a spraying assembly disposed on the fixing seats, characterized in that: The spraying assembly comprises: a driving device is provided on the wall frame, the driving device is connected to the support frame to drive the support frame to move up and down, the spraying assembly comprises a spray gun and an air pipe, the spray gun comprises a nozzle, a hollow mounting groove is provided in the nozzle, a spiral piece is provided in the mounting groove, and the groove arm of the mounting groove abuts against the outer wall of the spiral piece, one end of the nozzle is detachably connected with a nozzle, a spray hole is provided on the nozzle, a second abutting groove is provided at the end of the nozzle close to the spiral piece, the end face of the second abutting groove abuts against one end of the spiral piece, the other end of the nozzle is detachably connected to the air pipe, a first abutting groove is provided at the end of the nozzle close to the air pipe, the first abutting groove abuts against the other end of the spiral piece, and the opening of the spray hole on the side away from the spiral piece is larger at the upper end and smaller at the lower end.

2. A bipolar side spraying device according to claim 1, characterized in that: The circumferential surface of the fixing seat is provided with a thread groove, the circumferential surface of the spray gun is provided with a connecting groove, and bolts are threadedly connected between the thread groove and the connecting groove.

3. The bipolar side spraying device according to claim 1, characterized in that: The driving device includes a driving plate and a screw. One side end of the support frame is fixedly connected to the driving plate. The upper end of the driving plate is provided with a threaded sleeve, and the screw is connected to the screw through the inner thread of the threaded sleeve.

4. A bipolar side spraying device according to claim 3, characterized in that: A wall bracket is provided on one side of the driving plate, the lower end of the wall bracket is fixedly connected to a rotating sleeve, the screw rotates in the rotating sleeve, the upper end of the wall bracket is fixedly connected to a motor, and the output end of the motor is fixed to the screw.

5. The bipolar side spraying device according to claim 3, characterized in that: The upper end of the wall-connecting frame is fixedly connected to a limiting sliding rod, the upper end of the driving plate is provided with a limiting sliding hole, and the limiting sliding rod slides in the limiting sliding hole.

6. The bipolar side spraying device according to claim 1, characterized in that: The spray holes include more than two first spray holes and more than two second spray holes, and the more than two first spray holes are evenly spaced along the circumferential direction of the spray hole, the more than two second spray holes are evenly spaced along the radial direction of the spray hole, and the more than two second spray holes arranged in opposite directions in the same radial direction form a second spray hole group, and the more than two groups of second spray hole groups are evenly spaced along the circumferential direction.

7. The bipolar side spraying device according to claim 1, characterized in that: The intersection area of ​​the areas sprayed by two adjacent nozzle holes on the object to be sprayed is less than 20% of the spraying area of ​​one nozzle hole.

8. The bipolar side spraying device according to claim 6, characterized in that: The angle between the upper opening and the lower opening of the second nozzle hole is B, the distance between the spray gun and the object to be sprayed is h, and the length of the upper opening of the second nozzle hole is M. Then the spraying range of the second nozzle hole S2=M+2*ctan(180-B)*h.

9. The bipolar side spraying device according to claim 6, characterized in that: The angle between the upper and lower openings of the first spray hole is A, the distance between the spray gun and the object to be sprayed is H, and the length of the upper opening of the second spray hole is L. Then the spraying range of the second spray hole S1=L+2*ctan(180-B)*H.

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