Intelligent coating rolling spraying machine

By introducing a temperature control system of temperature sensors and heating wires into the roller spray machine, combined with the filtration and exhaust design of the air flow mechanism, the problem of uneven spraying caused by temperature and pressure changes in the roller spray machine is solved, and the spraying quality and environmental protection effect are improved.

CN223312299UActive Publication Date: 2025-09-09DONGGUAN MAIAO PRECISE EQUIP MFG CO LTD
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Patent Information

Application Number
CN202422131214.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2025-09-09
Estimated Expiration
2034-09-02

AI Technical Summary

Technical Problem

During the operation of existing roller spraying machines, the working pressure and temperature changes inside the drum lead to uneven film thickness and substandard color on the workpiece, and the high-temperature hot air can easily damage the spray gun and cause environmental pollution.

Method used

The temperature control system adopts a combination of temperature sensor and heating wire, and the temperature is precisely controlled by the controller. It is also equipped with an air flow mechanism for filtration and exhaust to ensure that the temperature and pressure are within the appropriate range during the spraying process.

Benefits of technology

The uniformity and stability of the workpiece surface spraying are achieved, damage to the spray gun is avoided, environmental pollution is reduced, and product quality and production efficiency are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an intelligent coating rolling spraying machine, which relates to the field of rolling spraying machines and comprises a frame, a fixed outer cylinder is mounted on the inner wall of the frame, a rotating door is rotatably mounted at an opening at the front end of the fixed outer cylinder, and a rotating motor is mounted at the tail end of the fixed outer cylinder in an inner cavity of the frame. An output shaft of the rotating motor penetrates into an inner cavity of the fixed outer cylinder, the output end of the rotating motor is connected with a synchronizing shaft through a coupler, a rotating inner cylinder is fixedly installed at one end of the synchronizing shaft and located in the inner cavity of the fixed outer cylinder, and an air flowing mechanism is installed in the frame; and the air flowing mechanism is used for adding and conveying external air into the frame. According to the utility model, the temperature sensor is arranged, and the temperature sensor is electrically connected with the electric heating wire through the controller, so that the temperature is controlled within a certain range, and a better temperature control effect is realized.
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Description

Technical Field

[0001] The utility model relates to the field of roller spray machines, in particular to an intelligent coating roller spray machine. Background Art

[0002] Roller spraying machine is a kind of coating equipment that puts the workpiece into the drum, rolls it continuously, sprays paint with a spray gun, and bakes it dry.

[0003] Existing roller spraying machines still have the following disadvantages in actual use: existing spraying machines can only maintain a certain power of hot air and the speed of the drum. However, when the roller spraying machine is actually working, the working pressure and temperature inside the drum will change with the working time. This change can easily lead to uneven film thickness of the workpiece, substandard color, spots and other defects, and a high defective rate. In addition, high-temperature hot air can easily damage the spray gun and produce harmful gases that seriously pollute the environment. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent coating roller spray machine in order to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intelligent coating roller spray machine, comprising a frame, an inner wall of the frame is installed with a fixed outer cylinder, a rotating door is rotatably installed at the front end opening of the fixed outer cylinder, the inner cavity of the frame is located at the tail end of the fixed outer cylinder and a rotating motor is installed, the output shaft of the rotating motor passes through the inner cavity of the fixed outer cylinder, and the output end of the rotating motor is connected to a synchronous shaft through a coupling, one end of the synchronous shaft is fixedly installed with a rotating inner cylinder, the rotating inner cylinder is located in the inner cavity of the fixed outer cylinder, an air flow mechanism is installed inside the frame, the air flow mechanism is used to add external air to the interior of the frame, and filter the air containing the spraying medium and discharge it harmlessly.

[0006] As a further solution of the present invention: a connecting block is fixedly installed at the front end of the rotating door, a rotating shaft rotatably connected to the frame is fixedly installed at one end of the rotating door, a handle is fixedly installed at an eccentric position at the front end of the rotating door, a temperature sensor that penetrates into the interior of the fixed outer cylinder is installed inside the rotating door, the sensing end of the temperature sensor is located in the inner cavity of the fixed outer cylinder, a support frame for supporting the spray gun is installed below the front end of the rotating door, and the interior of the fixed outer cylinder is provided with a receiving groove for inserting the spray gun head.

[0007] As a further solution of the present invention: the air flow mechanism includes a heating box fixedly installed below the outer periphery of the fixed outer cylinder, an electric heating wire is installed inside the heating box, the inner cavity of the heating box is connected to the inner cavity of the frame, and an air pump No. 1 connected to the heating box through a pipe is installed inside the frame, and the inner cavity of the output end of the No. 1 air pump is connected to the inner cavity of the heating box through a pipe.

[0008] As a further solution of the present invention: the air flow mechanism also includes a recovery pipe connected to the inner cavity of the fixed outer cylinder, the input end of the recovery pipe is connected to the filter box, the output end of the filter box is connected to the return air pipe, the return air pipe is connected to the input end of the No. 2 air pump, and the output end of the No. 2 air pump is connected to the exhaust pipe.

[0009] As a further solution of the present invention: two symmetrically outwardly protruding connecting keys are formed on the outer periphery of one end of the synchronization shaft away from the rotating inner cylinder, and a double keyway is provided at one end of the output shaft of the rotating motor to accommodate the two connecting keys. The double keyway is connected to the two connecting keys and then tightened by means of a nut, and the outer periphery of the connecting key is provided with an external thread that engages with the internal thread of the nut.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. By setting a temperature sensor and electrically connecting the temperature sensor to the heating wire through a controller, the temperature can be controlled within a certain range to achieve better temperature control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0014] Figure 3 This is a schematic structural diagram of the connecting key of the present invention;

[0015] Figure 4 This is a structural schematic diagram of the connecting key of the present invention from another perspective.

[0016] In the figure: 1. Frame; 2. Fixed outer cylinder; 3. Rotating door; 4. Connecting block; 5. Rotating shaft; 6. Handle; 7. Temperature sensor; 8. Receiving tank; 9. Support frame; 10. Rotating motor; 11. No. 1 air pump; 12. Heating box; 13. Recovery pipe; 14. Filter box; 15. Return air pipe; 16. No. 2 air pump; 17. Exhaust pipe; 18. Rotating inner cylinder; 19. Synchronous shaft; 20. Connecting key. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figures 1 to 4 In an embodiment of the present invention, an intelligent coating roller spray machine includes a frame 1, a fixed outer cylinder 2 is installed on the inner wall of the frame 1, and a rotating door 3 is rotatably installed at the front opening of the fixed outer cylinder 2. The inner cavity of the frame 1 is located at the tail end of the fixed outer cylinder 2 and a rotating motor 10 is installed. The output shaft of the rotating motor 10 passes through the inner cavity of the fixed outer cylinder 2, and the output end of the rotating motor 10 is connected to a synchronous shaft 19 through a coupling. A rotating inner cylinder 18 is fixedly installed at one end of the synchronous shaft 19. The rotating inner cylinder 18 is located in the inner cavity of the fixed outer cylinder 2. An air flow mechanism is installed inside the frame 1. The air flow mechanism is used to add external air to the interior of the frame 1 and filter the air containing the spraying medium and discharge it harmlessly.

[0019] In this embodiment, the workpiece to be sprayed is first placed into the rotating inner cylinder 18 by opening the rotating door 3. The rotating door 3 is then closed, the spray gun is fixed, and the rotating motor 10 is started. The rotating motor 10 rotates and drives the rotating inner cylinder 18 to rotate via the synchronous shaft 19. During this process, the workpiece in the rotating inner cylinder 18 moves under the action of the rotating inner cylinder 18, and the spray medium sprayed from the spray gun can be evenly adhered to the surface of the workpiece.

[0020] At the same time, the air flow mechanism is started, which inputs the heated external air into the fixed outer cylinder 2, and contacts the workpiece in the rotating inner cylinder 18, so that the spraying medium is quickly dried. The air containing the spraying medium is filtered and discharged to the outside harmlessly.

[0021] Please refer to Figure 1 A connecting block 4 is fixedly installed at the front end of the rotating door 3, a rotating shaft 5 rotatably connected to the frame 1 is fixedly installed at one end of the rotating door 3, a handle 6 is fixedly installed at the eccentric position of the front end of the rotating door 3, a temperature sensor 7 that penetrates into the interior of the fixed outer cylinder 2 is installed inside the rotating door 3, and the sensing end of the temperature sensor 7 is located in the inner cavity of the fixed outer cylinder 2. A support frame 9 for supporting the spray gun is installed below the front end of the rotating door 3, and a receiving groove 8 for inserting the spray gun head is provided inside the fixed outer cylinder 2.

[0022] In this embodiment, by pulling the handle 6, the handle 6 drives the rotating door 3 to rotate around the rotating shaft 5, thereby opening or closing the rotating door 3;

[0023] After the workpiece is placed and the rotating door 3 is closed, the spray gun can be installed by connecting the spray gun to the support frame 9 and inserting the spray gun head into the receiving groove 8;

[0024] Later, during the spraying process, the temperature sensor 7 converts the temperature of the inner cavity of the fixed outer cylinder 2 into an electrical signal and sends it to the controller. When the temperature exceeds the minimum threshold, the controller controls the heating wire to be disconnected to prevent the temperature from exceeding the maximum preset value. When the temperature is lower than the minimum threshold, the controller controls the heating wire circuit to be closed to prevent the temperature from being lower than the minimum preset value, thereby achieving the temperature of the fixed outer cylinder 2 and the rotating inner cylinder 18 being maintained within a suitable spraying range during the rolling spraying process.

[0025] Please refer to Figure 1 and Figure 2 The air flow mechanism includes a heating box 12 fixedly installed below the outer periphery of the fixed outer tube 2, and an electric heating wire is installed inside the heating box 12. The inner cavity of the heating box 12 is connected to the inner cavity of the frame 1, and the frame 1 is installed with an air pump No. 1 1 connected to the heating box 12 through a pipe. The inner cavity of the output end of the air pump No. 1 1 is connected to the inner cavity of the heating box 12 through a pipe. The air flow mechanism also includes a recovery pipe 13 connected to the inner cavity of the fixed outer tube 2, the input end of the recovery pipe 13 is connected to the filter box 14, the output end of the filter box 14 is connected to the return air pipe 15, the return air pipe 15 is connected to the input end of the No. 2 air pump 16, and the output end of the No. 2 air pump 16 is connected to the exhaust pipe 17.

[0026] In this embodiment: by starting the No. 1 air pump 11, the No. 1 air pump 11 draws external air into the heating box 12, and the air is heated by the temperature in the heating box 12 and enters the fixed outer cylinder 2. After the heated air is mixed with the spray medium, it enters the filter box 14 through the recovery pipe 13. The filter box 14 is divided into two parts, left and right. A multi-layer filter plate is installed at the vertical center axis position of the filter box 14. The multi-layer filter plate intercepts and filters the spray medium in the air. The air passes through the filter plate and is discharged through the exhaust pipe 17 under the suction of the No. 2 air pump 16, thereby preventing the air containing the spray medium from being directly discharged into the air.

[0027] Please refer to Figure 3 and Figure 4 Two symmetrically outwardly protruding connecting keys 20 are formed on the outer periphery of one end of the synchronous shaft 19 away from the rotating inner cylinder 18. A double keyway is provided at one end of the output shaft of the rotating motor 10 to accommodate the two connecting keys 20. The double keyway is connected to the two connecting keys 20 and is tightened by a nut. The outer periphery of the connecting key 20 is provided with an external thread that engages with the internal thread of the nut.

[0028] In this embodiment: the double keyway on the output shaft of the rotating motor 10 is aligned and docked with the connecting key 20. After docking, a nut is used to fix it to complete the fixation of the rotating inner cylinder 18. This design method can realize the installation of the rotating inner cylinder 18 with a hose.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent coating roller spray machine, comprising a frame (1), wherein a fixed outer cylinder (2) is mounted on the inner wall of the frame (1), characterized in that: A rotating door (3) is rotatably mounted at the front end opening of the fixed outer cylinder (2); a rotating motor (10) is mounted on the inner cavity of the frame (1) at the tail end of the fixed outer cylinder (2); an output shaft of the rotating motor (10) passes through the inner cavity of the fixed outer cylinder (2); and the output end of the rotating motor (10) is connected to a synchronous shaft (19) via a coupling; a rotating inner cylinder (18) is fixedly mounted on one end of the synchronous shaft (19); the rotating inner cylinder (18) is located in the inner cavity of the fixed outer cylinder (2); an air flow mechanism is mounted inside the frame (1); the air flow mechanism is used to add external air into the interior of the frame (1), and to filter and discharge the air containing the spraying medium harmlessly.

2. The intelligent coating roller spray machine according to claim 1, characterized in that: A connecting block (4) is fixedly installed at the front end of the rotating door (3), a rotating shaft (5) rotatably connected to the frame (1) is fixedly installed at one end of the rotating door (3), a handle (6) is fixedly installed at an eccentric position at the front end of the rotating door (3), a temperature sensor (7) penetrating into the interior of the fixed outer cylinder (2) is installed inside the rotating door (3), and the sensing end of the temperature sensor (7) is located in the inner cavity of the fixed outer cylinder (2), a support frame (9) for supporting the spray gun is installed below the front end of the rotating door (3), and an accommodating groove (8) for inserting the spray gun head is provided inside the fixed outer cylinder (2).

3. The intelligent coating roller spray machine according to claim 1, characterized in that: The air flow mechanism includes a heating box (12) fixedly installed below the outer periphery of the fixed outer cylinder (2), an electric heating wire is installed inside the heating box (12), the inner cavity of the heating box (12) is connected to the inner cavity of the frame (1), and an air pump (11) connected to the heating box (12) through a pipeline is installed inside the frame (1), and the inner cavity of the output end of the air pump (11) is connected to the inner cavity of the heating box (12) through a pipeline.

4. The intelligent coating roller spray machine according to claim 3, characterized in that: The air flow mechanism further comprises a recovery pipe (13) connected to the inner cavity of the fixed outer cylinder (2), the input end of the recovery pipe (13) is connected to a filter box (14), the output end of the filter box (14) is connected to a return air pipe (15), the return air pipe (15) is connected to the input end of the No. 2 air pump (16), and the output end of the No. 2 air pump (16) is connected to an exhaust pipe (17).

5. The intelligent coating roller spray machine according to claim 3, characterized in that: Two symmetrically outwardly protruding connecting keys (20) are formed on the outer periphery of one end of the synchronization shaft (19) away from the rotating inner cylinder (18); a double keyway for accommodating the two connecting keys (20) is provided at one end of the output shaft of the rotating motor (10); the double keyway is connected to the two connecting keys (20) and then tightened by a nut; and an external thread engaging with the internal thread of the nut is provided on the outer periphery of the connecting key (20).