Spraying device

Abstract

The utility model relates to a spraying device which is used for spraying a welding seam on the inner side of a can body and comprises two roller assemblies, a first driving device, a color code sensor, a spraying head and a control device, a gap is formed between the two roller assemblies, and the two roller assemblies support the two sides of the can body; the first driving device drives the two roller assemblies to rotate; the color code sensor is arranged between the two roller assemblies and below the can body; the spraying head is arranged above the color code sensor, right faces the color code sensor and can move in the axis direction of the can body; the control device is electrically connected with the color code sensor, the first driving device and the spraying head. The position of the welding seam on the inner side of the tank body can be accurately recognized through the color code sensor, the position of the tank body is adjusted through the roller assembly, alignment is achieved, damage of laser rays to eyes of operators is avoided, the problem of deviation caused by the fact that traditional manual operation depends on naked eye alignment is solved, and the spraying quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spraying devices, in particular to a spraying device. BACKGROUND

[0002] In the manufacturing process of metal cans, the spraying of welds is a crucial process step aimed at enhancing the corrosion resistance and aesthetics of the welds. Traditional weld spraying operations mainly rely on manual operation, in which a manual experimental spraying machine uses a laser level to assist in calibrating the straightness of the can body weld. The specific method is to manually place the can body into an arc-shaped small roller and adjust the alignment of the can body weld with the laser light by the light emitted by the laser level. However, this method has several significant problems:

[0003] 1. Safety hazards: The light of the laser level is irritating, and long-term or frequent use can cause harm to the eyes of the operator, increasing the safety risk during the operation process.

[0004] 2. Lack of precision: Relying on the naked eye for straight-line alignment is not only tedious but also has a certain degree of deviation, affecting the accuracy and consistency of spraying.

[0005] 3. Low efficiency: Manual operation requires a lot of manpower and time, limiting the improvement of production efficiency.

[0006] Therefore, there is an urgent need for a spraying device that can achieve accurate and efficient spraying of the inside weld of the can body while improving the safety of the operation and the production efficiency. SUMMARY

[0007] In view of the deficiencies of the prior art, the purpose of the present application is to provide a spraying device that can achieve accurate and efficient spraying of the inside weld of the can body while improving the safety of the operation and the production efficiency.

[0008] The above-mentioned purpose of the present application is achieved by the following technical solution:

[0009] A spraying device for spraying the weld on the inside of a can body, the spraying device comprising two roller assemblies, the two roller assemblies having a gap between them, and the two roller assemblies supporting the two sides of the can body.

[0010] The spraying device comprises a first driving device that drives the two roller assemblies to rotate.

[0011] The spraying device comprises a color mark sensor, which is arranged between the two roller assemblies and below the can body.

[0012] The spraying device comprises a spraying head, which is arranged above the color standard sensor, and faces the color standard sensor, and can move along the axis direction of the can body.

[0013] The spraying device comprises a control device, which is electrically connected with the color standard sensor, the first driving device and the spraying head.

[0014] Further, the spraying device further comprises a limiting cylinder and a receiving box, which are arranged at two ends of the roller assembly respectively, and the receiving box is arranged below the spraying head.

[0015] Further, the spraying device further comprises a proximity switch, which is arranged below the roller assembly, and is arranged between the limiting cylinder and the receiving box.

[0016] Further, the spraying device further comprises a distance sensor for sensing the spraying head, which is arranged opposite to the spraying head, and is electrically connected with the control device.

[0017] Further, the first driving device comprises a first motor, which is fixedly arranged.

[0018] Further, the first driving device further comprises two transmission belts, one end of each of the two transmission belts is connected with the first motor, and the other end of each of the two transmission belts is transmissionally connected with the roller assembly.

[0019] Further, one end of the roller assembly is provided with a groove, and the transmission belt is arranged in the groove.

[0020] Further, the spraying device further comprises a second driving device, which comprises a slide rod, a slide rail and a second motor, the spraying head is mounted at one end of the slide rod, the slide rail is fixedly arranged, the slide rod is slidably mounted on the slide rail, and the second motor drives the slide rod to move along the slide rail.

[0021] Further, the second driving device further comprises a crank linkage mechanism, one end of the crank linkage mechanism is connected with the second motor, and the other end of the crank linkage mechanism is connected with the slide rod.

[0022] Further, the roller assembly has a contact part in contact with the can body, and the contact part has viscosity.

[0023] In summary, the beneficial technical effects of the present application are:

[0024] 1.The present application can accurately identify the position of the weld on the inside of the can body by using a color marker sensor, and adjust the position of the can body using a roller assembly to ensure that the weld is directly opposite the color marker sensor, thereby achieving alignment for subsequent spraying operations. The present application discards the traditional laser level calibration method, avoids the irritation and potential harm of laser light to the eyes of the operator, thereby significantly reducing the safety risk in the operation process, and solving the deviation problem caused by the reliance on naked eye alignment in traditional manual operation, thereby improving the spraying quality.

[0025] 2.The present application realizes automatic alignment and spraying operation, reduces manual intervention, and significantly improves production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic view of the first perspective of the spraying device.

[0027] Figure 2 is a schematic view of the cross-section of the spraying device.

[0028] Figure 3 is a schematic view of the second perspective of the spraying device.

[0029] Figure 4 is a schematic view of the third perspective of the spraying device.

[0030] BRIEF DESCRIPTION OF DRAWINGS: 1, roller assembly; 2, first driving device; 3, color marker sensor; 4, spraying head; 5, limiting cylinder; 6, receiving box; 7, proximity switch; 8, distance sensor; 9, second driving device; 10, control device; 11, groove; 21, first motor; 22, transmission belt; 91, sliding rod; 92, sliding rail; 93, second motor; 94, crank linkage mechanism; G, can body; H, weld. DETAILED DESCRIPTION

[0031] The present application will be further described in detail below in conjunction with the accompanying drawings.

[0032] As shown in Figures 1-4 , a spraying device, notably, Figure 2 is a cross-sectional view of the spraying device cut along a vertical cross-sectional plane, the cross-sectional plane being a vertical plane passing through the central axis of the sliding rod 91, and the spraying device is used for spraying the weld H on the inside of the can body G.

[0033] Specifically, the spraying device includes two roller assemblies 1, a first drive device 2, a color mark sensor 3, a spray head 4, and a control device 10. There is a gap between the two roller assemblies 1, and the two roller assemblies 1 support both sides of the can body G. The first drive device 2 drives the two roller assemblies 1 to rotate. The color mark sensor 3 is located between the two roller assemblies 1 and below the can body G. The spray head 4 is located above the color mark sensor 3 and faces the color mark sensor 3. The spray head 4 can move along the axis of the can body G. The control device 10 is electrically connected to the color mark sensor 3, the first drive device 2, and the spray head 4.

[0034] like Figure 4 As shown, the tank body G is horizontally positioned, with two roller assemblies 1 located on either side below the tank body G, providing support. The rotation of the rollers drives the tank body G to rotate. The first drive device 2 drives the roller assemblies 1 to rotate, thereby rotating the tank body G. A color mark sensor 3 is located below the tank body G, accurately identifying the position of the weld seam H and transmitting the signal to the control device 10. Rotation stops when the weld seam H is directly opposite the color mark sensor 3, ensuring the weld seam H is aligned with it. The spray head 4 is positioned directly opposite the color mark sensor 3, allowing it to move along the axis of the tank body G for spraying. The control device 10 controls the movement and spraying operation of the spray head 4 based on the signal from the color mark sensor 3.

[0035] Preferably, the control device 10 is electrically connected to the color mark sensor 3, the first drive device 2, and the spray head 4 via direct wires. Specifically, each component is directly connected to the control device 10 via wires or copper foil on a circuit board, forming a stable electrical signal transmission channel. This connection method is simple and direct, ensuring fast and accurate transmission of electrical signals, and is suitable for applications requiring high signal transmission speed and where the spatial layout allows for direct connection.

[0036] Preferably, the control device 10 is electrically and indirectly connected to the color mark sensor 3, the first driving device 2, and the spray head 4. To optimize the circuit layout or improve circuit safety and stability, the electrical connections are indirect, meaning that each component is connected to the control device 10 via relay circuits, such as signal processing circuits or isolation circuits. The relay circuits can perform preprocessing, amplification, and isolation operations on the electrical signals to improve signal transmission quality and circuit reliability. This connection method is suitable for applications requiring high signal quality or special circuit processing.

[0037] Preferably, the control device 10 is connected with the color sensor 3, the first driving device 2 and the spraying head 4 respectively by wireless communication. When the spraying device needs to work in a complex environment, wired connection may be limited or inconvenient. At this time, data transmission and control between various components can be realized through wireless communication modules such as Bluetooth, Wi-Fi, Zigbee, etc. Wireless communication connection has the advantages of high flexibility and simple wiring, but attention should be paid to signal interference and transmission distance, etc.

[0038] In addition, the spraying head 4 is connected with the external storage / pressure assembly through the pipeline to realize the supply of the spraying material.

[0039] Through the cooperation of the color sensor 3 and the control device 10, the position of the weld H can be accurately identified, precise spraying can be realized, and the spraying quality and aesthetics can be improved. The automatic spraying operation reduces manual intervention and waiting time, and improves production efficiency. The automatic spraying device reduces the number of operating personnel and skill requirements, and reduces labor cost.

[0040] Further, the spraying device further comprises a limiting cylinder 5 and a receiving box 6, the limiting cylinder 5 and the receiving box 6 are respectively arranged at both ends of the two roller assemblies 1, and the receiving box 6 is arranged below the spraying head 4.

[0041] The limiting cylinder 5 limits the movement range of the can body G on the roller assembly 1, one end of the limiting cylinder 5 is fixedly arranged, the other end can be telescopic, preferably, the other end of the limiting cylinder 5 limits the movement of the can body G at the set position; more preferably, the limiting cylinder 5 pushes the can body G to the set position and retracts before the roller assembly 1 drives the can body G to rotate, and the contact with the can body G is disconnected. In this way, the can body G can be kept at a predetermined position before spraying, which can improve the accuracy of spraying.

[0042] The receiving box 6 is located below the spraying head 4, which is used to collect the excess paint that drips or splashes from the can body G during the spraying process. This not only helps to keep the working environment clean, but also reduces the waste of paint and reduces production cost. At the same time, the design of the receiving box 6 is convenient for cleaning and reuse, which improves the utilization efficiency of resources.

[0043] Further, the spraying device further comprises a proximity switch 7, the proximity switch 7 is arranged below the two roller assemblies 1, and the proximity switch 7 is arranged between the limiting cylinder 5 and the receiving box 6.

[0044] The proximity switch 7 can detect whether the can body G has been correctly placed on the roller assembly 1 in real time. When the can body G approaches or contacts the proximity switch 7, it will trigger a signal, which can be used by the control device 10 to start or stop related actions, such as the retreat of the limiting cylinder 5, the start of the first motor 21, etc. This ensures the accurate placement and stable rotation of the can body G during the spraying process.

[0045] Likewise, when the can body G is taken out, the proximity switch 7 will also detect this change and trigger the corresponding signal, causing the limiting cylinder 5 to extend again, preparing for the next can body G for spraying work.

[0046] By integrating with the control device 10, the proximity switch 7 can realize automatic control of the spraying operation. It can automatically adjust the working state of the spraying device according to the presence or absence of the can body G, without manual intervention, thereby greatly improving the production efficiency and spraying precision.

[0047] The real-time monitoring function of the proximity switch 7 helps to discover and handle abnormal situations in time, such as incorrect placement or removal of the can body G. This can effectively prevent uneven spraying, paint waste, and even equipment damage caused by improper operation or equipment failure, thereby enhancing the safety and stability of the equipment.

[0048] The proximity switch 7 is arranged below the two roller assemblies 1 and between the limiting cylinder 5 and the receiving box 6. This design not only meets the actual needs of the spraying operation, but also optimizes the overall layout of the equipment. It makes the structure of the spraying device more compact and reasonable, effectively saving space resources.

[0049] Further, the spraying device also includes a distance sensor 8 for sensing the spraying head 4, the distance sensor 8 is arranged opposite to the spraying head 4, and the distance sensor 8 is electrically connected with the control device 10.

[0050] The distance sensor 8 can monitor the actual distance between the spraying head 4 and itself in real time, ensuring that the spraying operation is carried out within the preset optimal distance range. When the spraying head 4 approaches to the distance set by the distance sensor 8, the spraying head 4 stops spraying work, and the servo motor drives the crank to quickly retreat to the original position, thus completing the spraying operation of one can body G.

[0051] Further, the first driving device 2 includes a first motor 21 and two transmission belts 22, the first motor 21 is fixedly arranged; one end of each of the two transmission belts 22 is connected with the first motor 21, and the other end of each of the two transmission belts 22 is respectively in transmission connection with the two roller assemblies 1.

[0052] The first motor 21 serves as a power source, and stably transmits power to the two roller assemblies 1 through the two transmission belts 22. This design ensures that the roller assemblies 1 can maintain constant speed and rotation direction during spraying, thereby ensuring the continuity and uniformity of the spraying operation.

[0053] The first motor 21 is fixedly arranged and connected with the roller assembly 1 through the transmission belt 22, so that the structure of the whole driving device is more compact. This not only saves space resources, but also facilitates the installation and maintenance of the equipment. At the same time, the transmission belt 22 as a common transmission element is relatively simple and fast to replace and maintain.

[0054] Since the transmission belt 22 has a certain elasticity and adaptability, the first driving device 2 can better adapt to cans of different sizes and weights. During the spraying process, even if the can body G has a certain size deviation or weight change, the transmission belt 22 can maintain the stable operation of the roller assembly 1 through its elastic deformation.

[0055] Compared with other transmission modes such as direct gear transmission or chain transmission, the transmission belt 22 transmission has lower energy consumption and noise. This helps to reduce the energy consumption and noise pollution of the spraying device during operation, thereby improving the environmental performance of the equipment and the comfort of the operating personnel.

[0056] By controlling the speed and direction of the first motor 21, the speed and rotation direction of the roller assembly 1 can be accurately controlled. This makes it possible to realize precise control of the spraying operation, such as adjusting the spraying speed, changing the spraying direction, etc., thereby meeting the requirements of different spraying needs.

[0057] Further, one end of the roller assembly 1 is provided with a groove 11, and the transmission belt 22 is arranged in the groove 11.

[0058] The transmission belt 22 is placed in the groove 11 of the roller assembly 1, and this close fitting ensures effective contact between the transmission belt 22 and the roller assembly 1. During the spraying process, the transmission belt 22 can more stably transmit power, reducing energy loss due to sliding or jumping, thereby improving transmission efficiency. At the same time, this design also enhances the stability of the transmission belt 22, avoiding the problem of poor operation or stop of the roller assembly 1 due to loosening or deviation of the transmission belt 22.

[0059] The design of the groove 11 provides a fixed running track for the transmission belt 22, reducing direct friction between the transmission belt 22 and the outside of the roller assembly 1. This not only reduces the wear rate of the transmission belt 22 and prolongs its service life, but also reduces noise and heat generated by friction. At the same time, since the transmission belt 22 runs more smoothly in the groove 11, the wear of the roller assembly 1 is also reduced, thereby prolonging the service life of the whole spraying device.

[0060] The transmission belt 22 is placed in the groove 11 of the roller assembly 1, which makes the installation process more simple and efficient. The operator only needs to fix one end of the transmission belt 22 on the first motor 21 and put the other end into the groove 11 of the roller assembly 1, and the installation can be easily completed. Similarly, during maintenance, the operator does not need to disassemble too many parts to inspect or replace the transmission belt 22, thereby reducing maintenance costs and time.

[0061] The close combination of the groove 11 and the transmission belt 22 ensures the stable operation of the roller assembly 1 during the spraying process. Even under high load or harsh working environment, the transmission belt 22 is not easy to fall off or damage, thereby improving the safety and reliability of the equipment. This helps to reduce production interruptions and losses caused by equipment failure.

[0062] Further, the spraying device also includes a second driving device 9, which includes a sliding rod 91, a sliding rail 92, and a second motor 93. The spraying head 4 is installed at one end of the sliding rod 91. The sliding rail 92 is fixedly arranged, and the sliding rod 91 is slidably installed on the sliding rail 92. The second motor 93 drives the sliding rod 91 to move along the sliding rail 92.

[0063] The automated control function of the second driving device 9 makes the spraying operation more efficient. The operator only needs to set the speed of the second motor 93, and the second driving device 9 can automatically complete the spraying operation, greatly saving labor and time costs. At the same time, since the spraying head 4 can accurately control the moving speed and position, the waste of paint is also reduced, and the production efficiency is improved.

[0064] The design of the sliding rail 92 and the sliding rod 91 makes the spraying head 4 more stable during movement. This stable movement helps to reduce the spraying quality problems caused by the shaking or deviation of the spraying head 4. At the same time, the accurate control of the second motor 93 also ensures the accuracy and reliability of the spraying head 4 during movement.

[0065] The introduction of the second driving device 9 makes the operation process of the spraying operation more simple and clear. The operator only needs to input relevant parameters and instructions through a control panel or a touch screen and the like, and the automatic movement and spraying operation of the spraying head 4 can be realized. This not only reduces the operation difficulty, but also improves the comfort and work efficiency of the operator.

[0066] Further, the second driving device 9 also includes a crank linkage mechanism 94, one end of which is connected with the second motor 93, and the other end of which is connected with the sliding rod 91.

[0067] Specifically, the rotation of the motor drives the rotation of the crank; the other end is rotatably connected with the sliding rod 91 through the connecting rod, which converts the rotary motion of the crank into the linear reciprocating motion of the sliding rod 91 on the sliding rail 92.

[0068] Specifically, when the second motor 93 starts, its output shaft drives the crank to rotate. The rotational motion of the crank is transmitted to the slide bar 91 through the connecting rod. Since the connecting point between the connecting rod and the slide bar 91 is fixed, the rotation of the crank will cause the angle between the connecting rod and the slide bar 91 to change, thereby pushing the slide bar 91 to move back and forth in a straight line on the slide rail 92. This design enables the spraying head 4 to move according to a predetermined trajectory and speed, achieving more complex and precise spraying operations.

[0069] The introduction of the crank connecting rod mechanism 94 makes the movement trajectory of the spraying head 4 more controllable and accurate. By adjusting the rotation speed, angle of the crank, and the position of the connecting point between the connecting rod and the slide bar 91, the movement speed and position of the spraying head 4 can be accurately controlled, thereby achieving more complex and fine spraying patterns and textures.

[0070] The crank connecting rod mechanism 94 can efficiently convert the rotational motion of the second motor 93 into the straight-line reciprocating motion of the slide bar 91, thereby improving the movement speed and spraying efficiency of the spraying head 4. This means that more spraying operations can be completed in the same time, improving production efficiency.

[0071] Further, the roller assembly 1 has a contact portion in contact with the can body G, and the contact portion has adhesion. The contact portion of the roller assembly 1 has adhesion, which can closely fit the surface of the can body G, making the positions of the can body G and the roller assembly 1 relatively stable.

[0072] The operation process of the device is as follows: the welded can body G is placed manually, the limiting cylinder 5 assembly is extended to push the can body G into the processing position or limit the can body G from exceeding the processing position, i.e. the can body G enters the moving range of the roller assembly 1. The contact portion adopts a rubber roller, and at this time the can body G is placed on the contact portions of the two roller assemblies 1 with slight adhesion.

[0073] At this time, once the proximity switch 7 senses the presence of the can body G, the limiting cylinder 5 assembly will retreat to provide space for the rotation of the can body G. After the limiting cylinder 5 assembly retreats, the first motor 21 starts to rotate the two rollers through the belt after a delay of about 2 seconds.

[0074] The color mark sensor 3 monitors the position of the weld H of the can body G in real time. When the weld H rotates to the sensing range of the color mark sensor 3, the first motor 21 stops working, and the centering of the weld H is completed.

[0075] Subsequently, the second electrode is started, and the spraying head 4 is driven to spray at a constant speed. The spraying head 4 sprays according to the preset spraying path and speed until it approaches the stop distance set by the inductor 8. When the spraying head 4 reaches the set stop distance, the spraying operation is stopped. The second motor 93 drives the spraying head 4 to quickly retreat to the original position, and prepares for the next spraying operation.

[0076] After the can body G is manually removed, the approach switch 7 cannot sense the presence of the can body G. The limiting cylinder 5 assembly is extended again, and returns to the initial state, waiting for the next can body G spraying operation.

[0077] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and are not limited to the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A spraying device for spraying a coating onto the weld (H) on the inner side of a tank body (G), characterized in that, include: Two roller assemblies (1), with a gap between the two roller assemblies (1), and the two roller assemblies (1) support both sides of the tank body (G); The first driving device (2) drives the two roller assemblies (1) to rotate; A color mark sensor (3) is disposed between the two roller assemblies (1) and below the can body (G); Spray head (4), the spray head (4) is located above the color mark sensor (3), the spray head (4) is directly facing the color mark sensor (3), and the spray head (4) can move along the axial direction of the can body (G); The control device (10) is electrically connected to the color mark sensor (3), the first drive device (2) and the spray head (4).

2. The spraying apparatus according to claim 1, characterized in that, It also includes a limiting cylinder (5) and a receiving box (6), the limiting cylinder (5) and the receiving box (6) are respectively located at both ends of the two roller assemblies (1), and the receiving box (6) is located below the spray head (4).

3. The spraying apparatus according to claim 2, characterized in that, It also includes a proximity switch (7), which is located below the two roller assemblies (1) and between the limiting cylinder (5) and the receiving box (6).

4. The spraying apparatus according to claim 1, characterized in that, It also includes a distance sensor (8) for sensing the spray head (4), the distance sensor (8) being disposed opposite to the spray head (4), and the distance sensor (8) being electrically connected to the control device (10).

5. The spraying apparatus according to claim 1, characterized in that, The first driving device (2) includes: The first motor (21) is fixedly installed; Two drive belts (22), one end of each drive belt (22) is connected to the first motor (21), and the other end of each drive belt (22) is connected to the two roller assemblies (1).

6. The spraying apparatus according to claim 5, characterized in that, One end of the roller assembly (1) is provided with a groove (11), and the transmission belt (22) is disposed in the groove (11).

7. The spraying apparatus according to claim 1, characterized in that, It also includes a second drive unit (9), which includes: A slide bar (91) is provided, and the spray head (4) is mounted on one end of the slide bar (91); A slide rail (92) is fixedly installed, and a slide rod (91) is slidably installed on the slide rail (92); The second motor (93) drives the slide bar (91) to move along the slide rail (92).

8. The spraying apparatus according to claim 7, characterized in that, The second drive device (9) further includes: A crank-connecting rod mechanism (94) is provided, one end of which is connected to the second motor (93), and the other end of which is connected to the slide rod (91).

9. The spraying apparatus according to claim 1, characterized in that, The roller assembly (1) has a contact portion that contacts the tank body (G), and the contact portion is adhesive.

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