Cylindrical workpiece surface spraying device

Abstract

The utility model discloses a cylindrical workpiece surface spraying device which comprises a machine box, a spraying box is arranged on the machine box, two paint storage boxes arranged side by side are arranged on the rear side of the spraying box, a plurality of lifting mechanisms are arranged in the spraying box, and each lifting mechanism is in transmission connection with a lifting seat. Wherein a first spray pipe and a second spray pipe are mounted on the two outermost lifting seats respectively and are oppositely arranged, a first spray pipe and a second spray pipe which are oppositely arranged are mounted on each of the other lifting seats, and the first spray pipes and the second spray pipes of the adjacent lifting seats are oppositely arranged; nozzles are mounted on the first spray pipe and the second spray pipe; wherein one paint storage box is connected with the first spray pipe through a first paint conveying pipeline, and the other paint storage box is connected with the second spray pipe through a second paint conveying pipeline. Primer is sprayed to the workpiece through the nozzle on the first spraying pipe, surface paint is sprayed to the workpiece through the nozzle on the second spraying pipe, the workpiece does not need to be taken out, spraying of the primer and spraying of the surface paint are seamlessly connected, and the spraying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying devices, in particular to a cylindrical workpiece surface spraying device. Background Art

[0002] When spraying a cylindrical workpiece, the cylindrical workpiece needs to be fixed before spraying. However, the current spraying device has the following problems: (1) only one workpiece can be sprayed at a time, and the spraying efficiency is low; (2) during spraying, multiple spraying operations are required, such as spraying the primer first and then the topcoat, while the above two processes are currently separate, that is, the primer is sprayed first, and then the workpiece is taken out and placed in the topcoat spraying device, which cannot achieve gapless spraying and has low spraying efficiency. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a cylindrical workpiece surface spraying device to solve the problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A cylindrical workpiece surface spraying device comprises a chassis, a spray box is arranged on the chassis, two side-by-side paint storage boxes are arranged at the rear side of the spray box, a plurality of lifting mechanisms are arranged in the spray box, a pneumatic claw disk is arranged between adjacent lifting mechanisms on the chassis, a rotating column is connected to the lower end of each pneumatic claw disk, the rotating column is rotatably connected to the top of the chassis, a cover shell is fixed below each pneumatic claw disk in the chassis, the rotating column is rotatably connected to the cover shell, a first motor is arranged in the cover shell, the first motor is connected to a transmission shaft through a coupling, a main gear is connected to the transmission shaft, a sub-gear is connected to the rotating column, the main gear is meshed with the sub-gear, and the spray A holding mechanism is provided on the top of the paint box, and the holding mechanism is located directly above the pneumatic claw disc; each lifting mechanism is transmission-connected with a lifting seat, wherein the two outermost lifting seats are respectively equipped with a first nozzle and a second nozzle, the first nozzle and the second nozzle are arranged oppositely, and each of the remaining lifting seats is equipped with a first nozzle and a second nozzle arranged in opposite directions, the first nozzle and the second nozzle of adjacent lifting seats are arranged oppositely, and nozzles are installed on the first nozzle and the second nozzle; one of the paint storage boxes is connected to the first nozzle through a first paint supply pipeline, and the other paint storage box is connected to the second nozzle through a second paint supply pipeline.

[0006] Preferably, the lifting mechanism includes a screw rod rotatably connected to the top of the chassis and the top of the spray box, a first guide rod connected to the top of the chassis and the top of the spray box, and a second motor arranged on the top of the spray box. The second motor is transmission-connected to the screw rod through a coupling, the lifting seat is threadedly connected to the screw rod, and the lifting seat is slidably connected to the first guide rod.

[0007] In the above technical solution, the second motor is started to drive the lead screw to rotate. During the rotation of the lead screw, the lifting seat is driven to move on the first guide rod, thereby driving the nozzle to move up and down to spray the workpiece.

[0008] Preferably, the pressing mechanism includes a cylinder installed on the top of the spraying box, a mounting plate connected to the telescopic end of the cylinder, a rotating shaft rotatably connected to the mounting plate through a rotating bearing, a pressing plate connected to the lower end of the rotating shaft, and a second guide rod connected to the mounting plate. The second guide rod is slidably connected to the spraying box, and a slot is provided on the bottom surface of the pressing plate.

[0009] In the above technical solution, the cylindrical workpiece is placed on the pneumatic chuck, and the lower part of the workpiece is fixed by the pneumatic chuck. Then, the cylinder is controlled to extend to drive the mounting plate to descend, so that the upper end of the cylindrical workpiece is inserted into the slot, thereby stabilizing the cylindrical workpiece. When the workpiece is driven to rotate, since the rotating shaft is rotatably connected to the mounting plate, the mounting plate will rotate together with the workpiece.

[0010] Preferably, the first paint conveying pipeline includes a first pump body arranged on the top of a paint storage tank. The inlet end of the first pump body is communicated with the paint storage tank through a pipeline. The outlet end of the first pump body is connected with a first paint outlet pipe. A first control valve is installed on the first paint outlet pipe. A first main pipe is connected to the first paint outlet pipe. A plurality of first hoses are connected to the first main pipe. A plurality of first through holes are provided on the top of the spraying box. The first hoses enter the spraying box through the first through holes, and the inlet ends are connected to the first spray pipes.

[0011] In the above technical solution, the paint storage tank contains primer. The first control valve is opened, and the primer is sent from the paint storage tank to the first spray pipe through the first pump body, the first paint outlet pipe, the first main pipe, and the first hoses, and then sprayed onto the workpiece through the nozzles on the first spray pipe, thereby realizing the spraying of the primer.

[0012] Preferably, the second paint conveying pipeline includes a second pump body arranged on the top of another paint storage tank. The inlet end of the second pump body is communicated with the paint storage tank through a pipeline. The outlet end of the second pump body is connected with a second paint outlet pipe. A second control valve is installed on the second paint outlet pipe. A second main pipe is connected to the second paint outlet pipe. A plurality of second hoses are connected to the second main pipe. A plurality of second through holes are provided on the top of the spraying box. The second hoses enter the spraying box through the second through holes, and the inlet ends are connected to the second spray pipes.

[0013] In the above technical solution, the paint storage tank contains topcoat. The first control valve is closed, the second control valve is opened, and the topcoat is sent from the paint storage tank to the second spray pipe through the second pump body, the second paint outlet pipe, the second main pipe, and the second hoses, and then sprayed onto the workpiece through the nozzles on the second spray pipe, thereby realizing the spraying of the topcoat.

[0014] Preferably, a transparent door panel is hinged to the front side of the spraying box.

[0015] In the above technical solution, the spraying situation can be conveniently observed through the transparent door panel.

[0016] Preferably, a paint injection pipe is connected to the top of the paint storage tank, and a paint discharge pipe is connected to the lower part of the paint storage tank.

[0017] In the above technical solution, the paint injection pipe is used to add paint, and the paint discharge pipe is used to discharge the remaining paint. It should be noted that electromagnetic valves need to be provided on both the paint injection pipe and the paint discharge pipe.

[0018] Preferably, a ring of grille plates is provided around the pneumatic chuck at the top of the chassis. The chassis is used to collect waste paint, and a sewage discharge pipe is connected to one side of the lower part of the chassis.

[0019] In the above technical solution, the waste paint from spraying enters the chassis through the grille plates and is discharged through the sewage discharge pipe. A blower can be provided at the sewage discharge pipe to send the waste paint to the waste gas treatment system for treatment.

[0020] Compared with the prior art, the present utility model has the following beneficial effects:

[0021] (1) A number of cylindrical workpieces can be sprayed at one time in the spraying box, greatly improving the spraying efficiency.

[0022] (2) One of the paint storage tanks is used to store the primer, and the other paint storage tank is used to store the topcoat. First, the primer is sent to the first spray pipe through the first paint delivery pipeline, and the primer is sprayed onto the workpiece through the nozzle on the first spray pipe. Then, the topcoat is sent to the second spray pipe through the second paint delivery pipeline, and the topcoat is sprayed onto the workpiece through the nozzle on the second spray pipe. There is no need to take out the workpiece, enabling seamless connection of the spraying of the primer and the topcoat and improving the spraying efficiency. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the present utility model;

[0024] Figure 2 It is a cross-sectional view of the present utility model;

[0025] Figure 3 It is a schematic diagram at the pressing plate and the rotating shaft;

[0026] Figure 4 It is a schematic diagram of the present utility model when spraying cylindrical workpieces;

[0027] In the figure: 1-chassis, 2-spray box, 3-paint storage box, 4-pneumatic claw plate, 5-rotating column, 6-cover, 7-first motor, 8-main gear, 9-second gear, 10-lifting seat, 11-first nozzle, 12-second nozzle, 13-screw, 14-first guide rod, 15-second motor, 16-cylinder, 17-mounting plate, 18-rotating shaft, 19-pressing plate, 20-second guide rod, 21-slot, 22-first pump body, 23-first paint outlet pipe, 24-first control valve, 25-first main pipe, 26-first hose, 27-second pump body, 28-second paint outlet pipe, 29-second control valve, 30-second main pipe, 31-second hose, 32-transparent door panel, 33-paint injection pipe, 34-paint discharge pipe, 35-grid plate, 36-drain pipe, 37-cylindrical workpiece. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] See also Figure 1 and Figure 2 A cylindrical workpiece surface spraying device comprises a chassis 1, a spray box 2 is arranged on the chassis 1, a transparent door panel 32 is hingedly connected to the front side of the spray box 2 for convenient viewing of the spraying situation, two side-by-side paint storage boxes 3 are arranged on the rear side of the spray box 2, a paint injection pipe 33 is connected to the top of the paint storage box 3, and a paint discharge pipe 34 is connected to the bottom of the paint storage box 3; a plurality of lifting mechanisms are arranged in the spray box 2, and a lifting seat 10 is transmission-connected to each lifting mechanism. Specifically, the lifting mechanism comprises a screw rod 13 rotatably connected to the top of the chassis and the top of the spray box, a first guide rod 14 connected to the top of the chassis and the top of the spray box, and a second motor 15 arranged on the top of the spray box, the second motor 15 is transmission-connected to the screw rod 13 through a coupling, the lifting seat 10 is threadedly connected to the screw rod 13, and the lifting seat 10 is slidingly connected to the first guide rod 14. The two outermost lifting seats 10 are respectively equipped with a first nozzle 11 and a second nozzle 12, which are arranged opposite to each other. Each of the remaining lifting seats 10 is equipped with a first nozzle 11 and a second nozzle 12 which are arranged opposite to each other. The first nozzle 11 and the second nozzle 12 of adjacent lifting seats 10 are arranged opposite to each other, and nozzles are installed on the first nozzle 11 and the second nozzle 12. One of the paint storage boxes 3 is connected to the first nozzle 11 through a first paint supply pipeline, and the other paint storage box 3 is connected to the second nozzle 12 through a second paint supply pipeline.

[0031] Specifically, the first paint supply pipeline includes a first pump body 22 disposed on the top of a paint storage tank. The inlet end of the first pump body 22 is communicated with the paint storage tank 3 through a pipeline. The outlet end of the first pump body 22 is connected with a first paint outlet pipe 23. A first control valve 24 is installed on the first paint outlet pipe 23. A first main pipe 25 is connected to the first paint outlet pipe 23. A number of first hoses 26 are connected to the first main pipe 25. A number of first through holes are provided on the top of the spraying tank 2. The first hoses 26 enter the spraying tank 2 through the first through holes, and the inlet ends are connected to the first spray pipes 11. The paint storage tank 3 is filled with primer. When the first control valve 24 is opened, the primer is sent from the first paint outlet pipe 23, the first main pipe 25, the first hoses 26 to the first spray pipes 11 by the first pump body 22, and then sprayed onto the workpiece through the nozzles on the first spray pipes 11, thereby realizing the spraying of the primer.

[0032] The second paint supply pipeline includes a second pump body 27 disposed on the top of another paint storage tank. The inlet end of the second pump body 27 is communicated with the paint storage tank 3 through a pipeline. The outlet end of the second pump body 27 is connected with a second paint outlet pipe 28. A second control valve 29 is installed on the second paint outlet pipe 28. A second main pipe 30 is connected to the second paint outlet pipe 28. A number of second hoses 31 are connected to the second main pipe 30. A number of second through holes are provided on the top of the spraying tank 2. The second hoses 31 enter the spraying tank 2 through the second through holes, and the inlet ends are connected to the second spray pipes 12. The paint storage tank 3 is filled with topcoat. When the first control valve 24 is closed and the second control valve 29 is opened, the primer is sent from the second paint outlet pipe 28, the second main pipe 30, the second hoses 31 to the second spray pipes 12 by the second pump body 27, and then sprayed onto the workpiece through the nozzles on the second spray pipes 12, thereby realizing the spraying of the topcoat.

[0033] An air-operated claw chuck 4 is provided on the chassis 1 between adjacent lifting mechanisms. The lower end of each air-operated claw chuck 4 is connected with a rotating column 5. The rotating column 5 is rotatably connected to the top of the chassis 1. A housing 6 is fixed inside the chassis 1 below each air-operated claw chuck 4. The rotating column 5 is rotatably connected to the housing 6. A first motor 7 is provided inside the housing 6. The first motor 7 is connected with a transmission shaft through a coupling. A main gear 8 is connected to the transmission shaft. A sub-gear 9 is connected to the rotating column 5. The main gear 8 meshes with the sub-gear 9. When the first motor 7 is started, through the cooperation of the main gear 8 and the sub-gear 9, the rotating column 5 is driven to rotate, thereby driving the air-operated claw chuck 4 to rotate, so as to perform omnidirectional spraying on the cylindrical workpiece.

[0034] A pressing mechanism is provided at the top of the spraying box 2, and the pressing mechanism is located directly above the pneumatic chuck 4. Specifically, the pressing mechanism includes a cylinder 16 installed on the top of the spraying box, a mounting plate 17 connected to the telescopic end of the cylinder, a rotating shaft 18 rotatably connected to the mounting plate through a rotating bearing, a pressing plate 19 connected to the lower end of the rotating shaft, and a second guide rod 20 connected to the mounting plate. The second guide rod 20 is slidably connected to the spraying box 2, and a slot 21 is provided on the bottom surface of the pressing plate 17. Place the cylindrical workpiece on the pneumatic chuck 4, fix the lower part of the workpiece through the pneumatic chuck 4, then control the cylinder 16 to extend, drive the mounting plate 17 to descend, so that the upper end of the cylindrical workpiece is inserted into the slot 21, thereby stabilizing the cylindrical workpiece. When driving the workpiece to rotate, since the rotating shaft 18 is rotatably connected to the mounting plate 17, the mounting plate 17 will rotate together with the workpiece.

[0035] The working principle of this embodiment is as follows:

[0036] Place the cylindrical workpiece 37 on the pneumatic chuck 4, fix the lower part of the workpiece through the pneumatic chuck 4, then control the cylinder 16 to extend, drive the mounting plate 17 to descend, so that the upper end of the cylindrical workpiece is inserted into the slot 21, thereby stabilizing the cylindrical workpiece. Then start the first motor 7, drive the rotating column 5 to rotate through the cooperation of the main gear 8 and the sub-gear 9, thereby driving the pneumatic chuck 4 to rotate, and then driving the cylindrical workpiece to rotate. Start the second motor 15, drive the lead screw 13 to rotate, and drive the lifting seat 10 to move on the first guide rod 14 during the rotation of the lead screw 13, thereby driving the nozzle to move up and down. Open the first control valve 24, close the second control valve 29, and send the primer from the first paint outlet pipe 23, the first main pipe 25, and the first hose 26 to the first spray pipe 11 through the first pump body 22, and then spray it on the workpiece from the nozzle on the first spray pipe 11, thereby realizing the spraying of the primer. Then close the first control valve 24, open the second control valve 29, and send the primer from the second paint outlet pipe 28, the second main pipe 30, and the second hose 31 to the second spray pipe 12 through the second pump body 27, and then spray it on the workpiece from the nozzle on the second spray pipe 12, thereby realizing the spraying of the topcoat.

[0037] Embodiment 2

[0038] The difference between this embodiment and Embodiment 1 is that a circle of grille plates 35 is provided around the periphery of the pneumatic chuck at the top of the chassis 1. The chassis 1 is used to collect waste paint, and a sewage discharge pipe 36 is connected to one side of the lower part of the chassis 1. The sprayed waste paint enters the chassis 1 through the grille plates 35 and is discharged through the sewage discharge pipe 36. A blower can be provided at the sewage discharge pipe 36 to send the waste paint to the waste gas treatment system for treatment.

[0039] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cylindrical workpiece surface spraying device, characterized in that: The invention comprises a machine case (1), wherein a spray box (2) is provided on the machine case (1), two side-by-side paint storage boxes (3) are provided on the rear side of the spray box (2), a plurality of lifting mechanisms are provided in the spray box (2), a pneumatic claw plate (4) is provided on the machine case (1) between adjacent lifting mechanisms, a rotating column (5) is connected to the lower end of each pneumatic claw plate (4), the rotating column (5) is rotatably connected to the top of the machine case (1), a cover shell (6) is fixed below each pneumatic claw plate (4) in the machine case (1), the rotating column (5) is rotatably connected to the cover shell (6), a first motor (7) is provided in the cover shell (6), the first motor (7) is connected to a transmission shaft through a coupling, a main gear (8) is connected to the transmission shaft, a sub-gear (9) is connected to the rotating column (5), the main gear (8) and the sub-gear (9) are meshed, a holding mechanism is provided on the top of the spray box (2), and the holding mechanism is located directly above the pneumatic claw plate (4); Each lifting mechanism is connected to a lifting seat (10) in a transmission manner, wherein the two outermost lifting seats (10) are respectively provided with a first nozzle (11) and a second nozzle (12), the first nozzle (11) and the second nozzle (12) being arranged opposite to each other, and each of the remaining lifting seats (10) is provided with a first nozzle (11) and a second nozzle (12) arranged opposite to each other, the first nozzle (11) and the second nozzle (12) of adjacent lifting seats (10) are arranged opposite to each other, and nozzles are both provided on the first nozzle (11) and the second nozzle (12); One of the paint storage boxes (3) is connected to a first spray pipe (11) via a first paint delivery pipeline, and the other paint storage box (3) is connected to a second spray pipe (12) via a second paint delivery pipeline.

2. A cylindrical workpiece surface spraying device according to claim 1, characterized in that: The lifting mechanism comprises a screw rod (13) rotatably connected to the top of the chassis and the top of the spray box, a first guide rod (14) connected to the top of the chassis and the top of the spray box, and a second motor (15) arranged on the top of the spray box. The second motor (15) is transmission-connected to the screw rod (13) through a coupling, the lifting seat (10) is threadedly connected to the screw rod (13), and the lifting seat (10) is slidably connected to the first guide rod (14).

3. A cylindrical workpiece surface spraying device according to claim 2, characterized in that: The holding mechanism comprises a cylinder (16) mounted on the top of the spray box, a mounting plate (17) connected to the telescopic end of the cylinder, a rotating shaft (18) rotatably connected to the mounting plate through a rotating bearing, a pressing plate (19) connected to the lower end of the rotating shaft, and a second guide rod (20) connected to the mounting plate, wherein the second guide rod (20) is slidably connected to the spray box (2), and a slot (21) is provided on the bottom surface of the pressing plate (19).

4. A cylindrical workpiece surface spraying device according to claim 3, characterized in that: The first paint delivery pipeline comprises a first pump body (22) arranged on the top of a paint storage box, the inlet end of the first pump body (22) is connected to the paint storage box (3) through a pipeline, the outlet end of the first pump body (22) is connected to a first paint outlet pipe (23), a first control valve (24) is installed on the first paint outlet pipe (23), the first paint outlet pipe (23) is connected to a first main pipe (25), the first main pipe (25) is connected to a plurality of first hoses (26), a plurality of first through holes are arranged on the top of the spray box (2), the first hose (26) enters the spray box (2) through the first through holes, and the inlet end is connected to the first spray pipe (11).

5. A cylindrical workpiece surface spraying device according to claim 4, characterized in that: The second paint supply pipeline comprises a second pump body (27) arranged on the top of another paint storage box, the inlet end of the second pump body (27) is connected to the paint storage box (3) through a pipeline, the outlet end of the second pump body (27) is connected to a second paint outlet pipe (28), a second control valve (29) is installed on the second paint outlet pipe (28), the second paint outlet pipe (28) is connected to a second main pipe (30), and the second main pipe (30) is connected to a plurality of second hoses (31), a plurality of second through holes are arranged on the top of the spray box (2), the second hose (31) enters the spray box (2) through the second through holes, and the inlet end is connected to the second spray pipe (12).

6. A cylindrical workpiece surface spraying device according to claim 5, characterized in that: A transparent door panel (32) is hingedly connected to the front side of the spray box (2).

7. A cylindrical workpiece surface spraying device according to any one of claims 1 to 6, characterized in that: The top of the paint storage box (3) is connected to a paint injection pipe (33), and the bottom of the paint storage box (3) is connected to a paint discharge pipe (34).

8. A cylindrical workpiece surface spraying device according to claim 7, characterized in that: A circle of grille plates (35) is provided at the top of the chassis (1) and the periphery of the pneumatic claw disc. The chassis (1) is used to collect waste paint. A sewage pipe (36) is connected to one side of the lower part of the chassis (1).

Images