Rotary spraying mechanism

Abstract

A power device is connected to an inner pipe through a transmission assembly, an air hole and a coating hole are formed in the curved surface of a fixing ring, a first annular groove and a second annular groove are formed in the inner side of the fixing ring, and an inlet and outlet channel is formed in the middle of the inner pipe. A first output channel communicated with the first annular groove and a second output channel communicated with the second annular groove are formed in the inner pipe, the spray gun is arranged on one end face of the inner pipe, and the other end of the first output channel and the other end of the second output channel are connected to the spray gun. The workpiece passes through the inlet and outlet channel of the inner pipe, so that the spray gun mounted on the inner pipe can perform rotary spraying around the workpiece through the power device, and the spraying efficiency is improved; and the device is particularly suitable for all-directional spraying of long-strip continuous workpieces.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying equipment, in particular to a rotary spraying mechanism. Background Art

[0002] Spraying equipment is also often called a sprayer or a paint sprayer. Most of the existing spraying equipment uses a hanging electrostatic spraying. Referring to the public (announcement) number: CN220091746U, an electrostatic spray coating equipment is known to first hang the workpiece on the hanger, and the paint particles of the spray gun are connected to the negative electrode through electrostatic spraying, and the workpiece is connected to the positive electrode and grounded. Under the high voltage of the high-voltage power supply, an electrostatic field is formed between the tail of the spray gun and the workpiece. The sprayed paint is charged during the movement, and then under the action of the electrostatic field, it can move to the surface of the workpiece and form a film. However, with the development of science and technology, various new materials have emerged. At the same time, the new materials are not conductive, which requires spraying with a spray gun. However, in the past, workers used to hold the spray gun to spray the hung workpiece. Later, a slide rail was adopted, and the spray gun was installed on the slide rail. The workpiece on the hanger was sprayed with a moving spray gun, but the spraying efficiency is also not high, and it is not suitable for continuous workpiece spraying such as metal pipe products, spindles, and screws. Utility Model Content

[0003] The utility model provides a rotary spraying mechanism to improve the spraying efficiency, and is particularly suitable for the purpose of continuous workpiece spraying.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary spraying mechanism, comprising an inner tube, a fixed ring, a spray gun and a power device, the inner tube being rotatably arranged in the fixed ring, the power device being connected to the inner tube through a transmission assembly, the fixed ring curved surface being provided with air holes and paint holes, the inner side of the fixed ring being provided with a first annular groove connected to the air holes, and a second annular groove connected to the paint holes, an inlet and outlet channel for allowing workpieces to enter and exit being provided in the middle of the inner tube, a first output channel connected to the first annular groove, and a second output channel connected to the second annular groove being provided inside the inner tube, the spray gun being provided on one end face of the inner tube, and the other ends of the first output channel and the second output channel being connected to the spray gun.

[0005] Furthermore, the transmission assembly includes a gear and a chain belt, the gear is fixedly arranged on the outer curved surface of the inner tube, and the power device is connected to the gear through the chain belt transmission.

[0006] Furthermore, the spray gun is provided with a nozzle, and the nozzle faces the central axis of the inner tube.

[0007] Furthermore, the fixing ring is shorter than the inner tube, and the fixing ring is arranged in the middle of the inner tube. Bearings are provided at both ends of the fixing ring, and the fixing ring is rotatably connected to the inner tube through the bearings.

[0008] Furthermore, a plurality of spacer plates are arranged at intervals on the inner side of the fixing ring, and a first annular groove / a second annular groove are formed between adjacent spacer plates.

[0009] Furthermore, a box body is included, the fixing ring is arranged in the box body, and the box body is provided with a first opening for feeding and a second opening for discharging.

[0010] Compared with the prior art, the beneficial effects of the present invention are: spray paint and air are introduced through the fixed ring, and enter the first output channel and the second output channel through the first annular groove and the second annular groove, and finally guided to the spray gun for spraying, and the inner tube is driven by the power device to rotate, and the workpiece passes through the inlet and outlet channels of the inner tube, so that the power device enables the spray gun installed on the inner tube to rotate around the workpiece for spraying, thereby improving the spraying efficiency, and is particularly suitable for all-round spraying of long continuous workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the present utility model.

[0012] Figure 2 This is an exploded view of the present invention.

[0013] Figure 3 It is a cross-sectional view of the fixing ring in the present utility model.

[0014] Figure 4 It is a cross-sectional view of the inner tube in the present utility model.

[0015] Figure 5 It is a structural schematic diagram of the fixing ring and the inner tube in the utility model.

[0016] Figure 6 It is a structural diagram of the box body in this utility model.

[0017] In the figure: inner tube 1, fixed ring 2, spray gun 3, power unit 4, inlet and outlet channel 10, paint hole 21, air hole 22, gear 51, chain belt 52, bearing 55, first output channel 101, second output channel 102, first annular groove 201, second annular groove 202, partition plate 222, box body 500. DETAILED DESCRIPTION

[0018] 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.

[0019] As shown in the accompanying drawings, the utility model is a rotary spraying mechanism, comprising an inner tube 1, a fixed ring 2, a spray gun 3 and a power device 4. The inner tube 1 and the fixed ring 2 are annular, the spray gun 3 can adopt the existing spray gun 3 structure, and the power device 4 can be implemented by a servo motor or other devices. The inner tube 1 is rotatably arranged in the fixed ring 2, and the power device 4 is connected to the inner tube 1 through a transmission assembly, so that the inner tube 1 rotates in the fixed ring 2. The fixed ring 2 has air holes 22 and paint holes 21 on its curved surface. The air holes 22 and the paint holes 21 pass through the inside and outside of the fixed ring 2. It should be noted that the air holes 22 can be set to one or more. The air holes 22 are used to guide compressed air. The inner side of the fixed ring 2 is provided with a first annular groove 201 connected to the air hole 22, and a second annular groove 202 connected to the paint hole 21. The middle part of the inner tube 1 is provided with a device for allowing workpieces to enter and exit The inlet and outlet channel 10 is provided inside the inner tube 1 with a first output channel 101 connected to the first annular groove 201, and a second output channel 102 connected to the second annular groove 202. The number of the air holes 22, the first annular groove 201 and the first output channel 101 corresponds to each other. For example, the number of the air holes 22 is set to 2, and the number of the first annular groove 201 and the first output channel 101 are both set to 2. The spray gun 3 is provided on one end face of the inner tube 1, one end of the first output channel 101 is connected to the first annular groove 201, and one end of the second output channel 102 is connected to the second annular groove 202. The other ends of the first output channel 101 and the second output channel 102 are connected to the spray gun 3. The first output channel 101 and the second output channel 102 are connected to the spray gun 3 together, and the rotating spray gun 3 is used to spray the workpiece passing through the inner tube 1.

[0020] The utility model discloses a rotary spraying mechanism, which introduces spray material and air through a fixed ring 2, and passes into a first output channel 101 and a second output channel 102 through a first annular groove 201 and a second annular groove 202, and is finally guided to a spray gun 3 for spraying. An inner tube 1 is driven by a power device 4 to rotate, and a workpiece passes through the inlet and outlet channel 10 of the inner tube 1, so that the spray gun 3 installed on the inner tube 1 can rotate around the workpiece through the power device 4 to spray the workpiece, thereby improving the spraying efficiency. The utility model is suitable for all-round spraying of long continuous workpieces.

[0021] In this embodiment, the transmission assembly includes a gear 51 and a chain belt 52. The gear 51 is fixedly arranged on the outer curved surface of the inner tube 1. The power device 4 is connected to the gear 51 through the chain belt 52. The power device 4 drives the chain belt 52, and the chain belt 52 is transmitted to the gear 51, so that the gear 51 and the inner tube 1 rotate together in the fixed ring 2.

[0022] In this embodiment, the spray gun 3 is provided with a nozzle, and the spray gun 3 adopts the existing spray gun structure. It should be noted that the nozzle is facing the central axis of the inner tube 1. The nozzle facing the central axis of the inner tube 1 can better spray the workpiece passing through the inner tube 1.

[0023] In this embodiment, a plurality of spacer plates 222 are arranged at intervals inside the fixing ring 2, and a first annular groove 201 / a second annular groove 202 is formed between adjacent spacer plates 222. Figure 3 As shown, there are a total of 4 spacer plates 222 from left to right, forming a total of 3 annular grooves, which can be set as two first annular grooves 201 and connected to two air holes 22, or one air hole 21 and one coating hole 22 can be used, that is, connecting a first annular groove 201 and a second annular groove 202, and reserving a spare annular groove. Further, a sealing ring can be provided on the spacer plate 222, and more spacer plates 222 can be set to form more than 3 annular grooves.

[0024] In this embodiment, a box body 500 is included, the fixing ring 2 is arranged in the box body 500, and the power device 4 can also be installed in the box body 500. The box body 500 is provided with a first opening for feeding and a second opening for discharging. The workpiece enters from the first opening through the feeding device and passes through the inner tube 1 and then exits from the second opening. The box body 500 can cover the spraying environment to reduce pollution.

[0025] The above embodiments are preferred embodiments of the present invention. All structures similar to those of the present invention and equivalent changes made thereto should fall within the scope of protection of the present invention.

Claims

1. A rotary spraying mechanism, characterized in that: The utility model comprises an inner tube, a fixed ring, a spray gun and a power device, wherein the inner tube is rotatably arranged in the fixed ring, the power device is connected to the inner tube through a transmission assembly, the fixed ring curved surface is provided with air holes and paint holes, the inner side of the fixed ring is provided with a first annular groove connected to the air holes, and a second annular groove connected to the paint holes, an inlet and outlet channel for workpieces to enter and exit is provided in the middle of the inner tube, a first output channel connected to the first annular groove, and a second output channel connected to the second annular groove are provided inside the inner tube, the spray gun is provided on one end face of the inner tube, and the other ends of the first output channel and the second output channel are connected to the spray gun.

2. A rotary spraying mechanism according to claim 1, characterized in that: The transmission assembly includes a gear and a chain belt. The gear is fixedly arranged on the outer curved surface of the inner tube, and the power device is connected to the gear through the chain belt transmission.

3. The rotary spraying mechanism according to claim 1, characterized in that: The spray gun is provided with a nozzle, and the nozzle faces the central axis of the inner tube.

4. The rotary spraying mechanism according to claim 1, characterized in that: The fixing ring is shorter than the inner tube, and the fixing ring is arranged in the middle of the inner tube. Bearings are arranged at both ends of the fixing ring, and the fixing ring is rotatably connected to the inner tube through the bearings.

5. The rotary spraying mechanism according to claim 1, characterized in that: A plurality of spacer plates are arranged at intervals on the inner side of the fixing ring, and a first annular groove / a second annular groove are formed between adjacent spacer plates.

6. The rotary spraying mechanism according to claim 1, characterized in that: The invention comprises a box body, the fixing ring is arranged in the box body, and the box body is provided with a first opening for feeding and a second opening for discharging.

Images