Automatic spraying device and spraying method thereof

Abstract

The invention belongs to the technical field of automatic spraying, and particularly relates to an automatic spraying device and a spraying method thereof. Comprising a spraying mechanism and a transverse and longitudinal movement mechanism. The spraying mechanism comprises a spraying motor, at least two automatic spraying guns arranged on the spraying motor and a starting rotating disc used for adjusting the spraying angles of the automatic spraying guns, and the automatic spraying guns are connected with an air source and a paint source through spraying pipelines; the transverse and longitudinal movement mechanism comprises a transverse movement structure and a longitudinal movement structure which are arranged in an I shape, the transverse movement structure can longitudinally move along with the longitudinal movement structure, and the spraying motor and the automatic spraying gun can transversely move along with the transverse movement structure. According to the automatic spraying device, the transverse movement mechanism and the longitudinal movement mechanism are of an I-shaped structure, the moving range of the spraying guns is large, the vehicle spraying range can be covered, automatic spraying is achieved through automatic control, the labor cost is reduced, the production efficiency is improved, it can be guaranteed that the distances of the spraying guns are equal through PLC control, and spraying uniformity and consistency are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic spraying, and in particular relates to an automatic spraying device and a spraying method thereof. Background Art

[0002] With the rapid development of the automobile industry, automobile spraying is an important part of the automobile production process, and its quality and efficiency directly affect the overall quality and market competitiveness of the automobile. The traditional spraying method has problems such as uneven spraying, low efficiency, high labor costs, and environmental pollution. Therefore, the development of a new type of automatic spraying system is of great significance to improve the quality of automobile spraying, reduce production costs, and reduce environmental pollution.

[0003] The current production process adopts a new color matching method of two-color splicing. The vehicle must first spray the main color on the inner and outer panels of the body, then mask the body, and spray the second color on the top cover. Due to the large spraying range of the robot, it is impossible to spray into the gap where the masking part and the body meet. That is, in the double-color splicing process of the car, the robot spraying cannot spray all the gaps of the body in place, but simply sprays the roof, A-pillar and other external surfaces, making the car color appear excessively abrupt, so it is necessary to manually spray the gap to prevent the color from being too abrupt and causing adverse effects on vision. It has the following defects: ①. Safety risk: manual spraying is harmful to health. ②. Operation waste: Due to limited working conditions, two people are required to complete the operation. ③. Effect risk, due to the small gap, manual spraying cannot achieve uniform and stable coating. In view of the above-mentioned shortcomings, the purpose of the present invention is to provide a device that replaces manual work and realizes automatic spraying of the gap of the body, so we provide an automatic spraying device specifically for spraying gaps. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic spraying device. The system controls the signal and the supply of compressed air and paint through a PLC control panel, so that the spraying device can move synchronously with the production line, realize automatic spraying, and improve the uniformity and operation efficiency of the spraying.

[0005] The technical solution adopted by the present invention to solve this problem is: An automatic spraying device comprises a spraying mechanism and a transverse and longitudinal motion mechanism, wherein: A spraying mechanism, comprising a spraying motor, at least two automatic spray guns arranged on the spraying motor, and a starting rotating disk for adjusting the spraying angle of the automatic spray guns, wherein the automatic spray guns are connected to an air source and a paint source through a spraying pipeline; The transverse and longitudinal motion mechanism comprises a transverse motion structure and a longitudinal motion structure arranged in an I-shape. The transverse motion structure can move longitudinally along with the longitudinal motion structure, and the spraying motor and the automatic spray gun can move transversely along with the transverse motion structure.

[0006] In the above technical scheme, the longitudinal motion structure includes two parallel screw rails and a screw slider slidably arranged on the screw rails; the transverse motion structure includes a rectangular storage plate fixed on the two screw sliders, a pneumatic slide rail arranged under the storage plate, and a pneumatic slider arranged on the pneumatic slide rail.

[0007] In the above technical solution, an infrared sensor is also arranged above the storage plate.

[0008] In the above technical solution, the spraying motor is arranged below the pneumatic slider.

[0009] In the above technical solution, a nylon dragging belt in the same direction is fixed on the screw slide rail on one side by an angle iron, and a nylon dragging belt is arranged behind the pneumatic slide rail, and a spraying pipeline and a wire are arranged in the nylon dragging belt.

[0010] In the above technical solution, the spray pipeline includes four paint pipes and six air pipes.

[0011] In the above technical solution, a solenoid valve is also provided on the spray pipeline.

[0012] In the above technical solution, the starting rotary disk includes a PLC control disk, and the PLC control disk is provided with a PLC power indicator light, a color 1 indicator light, a color 2 indicator light, a ground chain signal indicator light, a start button, a color adjustment knob, an emergency stop button, a maintenance button, an automatic manual button, an operation ready button and a PLC controller.

[0013] The second invention object of the present invention is to provide a spraying method of an automatic spraying device, comprising the following steps: S1. When the production conditions are ready, press the operation preparation button and then press the start button to start the equipment; S2, the vehicle runs on the ground chain, the longitudinal motion structure is synchronized with the ground chain signal, and when the ground chain stops, the longitudinal motion structure and the ground chain stop moving at the same time; S3, when the vehicle runs on the ground chain to the operable area and passes through the infrared sensor position, the equipment starts to execute the PLC setting program; S4. When reaching the spraying position, the lateral motion structure starts spraying with the spraying motor and the automatic spray gun. After spraying, it returns to the original position and waits for the next operation.

[0014] The advantages and positive effects of the present invention are: 1. In the present invention, the transverse and longitudinal motion mechanisms form an I-shaped structure, the spray gun has a large range of motion, and can cover the vehicle spraying range. The transverse and longitudinal slide rails are designed, and the longitudinal slide rails receive the ground chain signal of the production system. If the ground chain stops, the longitudinal slide rails and the ground chain stop moving at the same time. Through automatic control, automatic spraying is realized, labor costs are reduced, and production efficiency is improved.

[0015] 2. In the present invention, the spray gun distance can be kept equal through PLC control, thereby ensuring the uniformity and consistency of spraying.

[0016] 3. In the present invention, at least two automatic spray guns are arranged on the spray motor, and the spraying angle of the automatic spray gun can be adjusted by starting the rotating disk. The spray gun angle can be changed during spraying to adapt to spraying at different angles. The vehicle model signal of the production system can also be received, and different colors can be sprayed according to different signals, which can meet the needs of mixed-line production of two colors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it should be understood that these drawings are designed only for explanation purposes and are not intended to limit the scope of the present invention. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

[0018] Figure 1 It is a front view of the structural schematic diagram of the present invention; Figure 2 It is a side view of the structural schematic diagram of the present invention; Figure 3 It is a top view of the structural schematic diagram of the present invention; Figure 4 It is a top view of the structural schematic diagram of the starting rotating disk.

[0019] In the figure: 1-screw slide; 2-pneumatic slide; 3-infrared sensor; 4-storage plate; 5-limit block; 6-angle iron; 7-automatic spray gun; 8-spraying motor; 9-air pipe and two-link paint pipe; 10-solenoid valve; 11-wire; 12-starting rotating disk; 13-air source and paint source; 14-spraying pipeline; 15-horizontal nylon drag; 16-longitudinal nylon drag; 17-extension plate; 18-PLC power indicator light; 19-color 1 indicator light; 20-color 2 indicator light; 21-ground chain signal indicator light; 22-start button; 23-color adjustment knob; 24-emergency stop button; 25-maintenance button; 26-automatic manual button; 27-running ready button. DETAILED DESCRIPTION

[0020] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of example, but all descriptions are only for illustration and should not be understood as limiting the present invention. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned in this document. In addition, in order to simplify the drawings, the same or similar technical features may be marked only in one place in the same drawing.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances. Figure 1-Figure 4 The present invention will be described in detail. Example 1

[0022] An automatic spraying device comprises a spraying mechanism and a transverse and longitudinal motion mechanism, wherein: A spraying mechanism, which includes a spraying motor 8, at least two automatic spray guns 7 arranged on the spraying motor 8, and a starting rotating disk 12 for adjusting the spraying angle of the automatic spray gun 7, wherein the automatic spray gun 7 is connected to an air source and a paint source 13 through a spraying pipeline; The transverse and longitudinal motion mechanism comprises a transverse motion structure and a longitudinal motion structure arranged in an I-shape. The transverse motion structure can move longitudinally along with the longitudinal motion structure, and the spraying motor 8 and the automatic spray gun 7 can move transversely along with the transverse motion structure.

[0023] Furthermore, in this embodiment, it can also be considered that the longitudinal motion structure includes two parallel screw rails 1, a screw slider slidably arranged on the screw rails 1, and the transverse motion structure includes a rectangular storage plate 4 fixed on the two screw sliders, a pneumatic slide rail arranged below the storage plate 4, and a pneumatic slider arranged on the pneumatic slide rail. The transverse and longitudinal motion mechanism is composed of an I-shaped structure, and the spray gun has a large range of movement and can cover the vehicle spraying range. The transverse and longitudinal slide rail design is adopted, and the longitudinal slide rail receives the ground chain signal of the production system. If the ground chain stops, the longitudinal slide rail and the ground chain stop moving at the same time, but the distance between the automatic spray gun and the vehicle remains consistent, and the spray gun will not have poor quality due to inconsistent spraying distance. Through PLC control, the spray gun distance can be guaranteed to be equal, ensuring the uniformity and consistency of spraying.

[0024] Furthermore, in this embodiment, it can also be considered that an infrared sensor 3 is also provided above the storage plate 4 to sense whether the vehicle has reached the spraying position.

[0025] Furthermore, in the present embodiment, it can also be considered that the spray motor 8 is arranged below the pneumatic slider, and at least two automatic spray guns 7 are arranged on the spray motor 8. The spray angle of the automatic spray gun 7 can be adjusted by starting the rotating disk 12. The spray gun angle can be changed during spraying to adapt to spraying at different angles. The vehicle model signal of the production system can also be received, and different colors can be sprayed according to different signals, which can meet the needs of mixed-line production of two colors.

[0026] Furthermore, in the present embodiment, it is also possible to consider that a longitudinal nylon drag 16 in the same direction is fixed on the screw slide 1 on one side by an angle iron, and a transverse nylon drag 15 is arranged behind the pneumatic slide, and the longitudinal nylon drag and the transverse nylon drag are both provided with a spray pipeline 14 and a wire 11, including a 10m long air pipe and a two-link paint pipe 9, and a 20m long wire 11.

[0027] Furthermore, in this embodiment, it can also be considered that the spray pipeline 14 includes four paint pipes and six air pipes.

[0028] Furthermore, in this embodiment, it can also be considered that a solenoid valve 10 is also provided on the spraying pipeline 14 .

[0029] Furthermore, in this embodiment, it can be considered that the start rotary disk 12 includes a PLC control disk, and the PLC control disk is provided with a PLC power indicator light 18, a color 1 indicator light 19, a color 2 indicator light 20, a ground link signal indicator light 21, a start button 22, a color adjustment knob 23, an emergency stop button 24, a maintenance button 25, an automatic manual button 26, an operation preparation button 27 and a PLC controller. Figure 4As shown in the plc control panel, when the equipment is powered on, the PLC power indicator light 18 lights up, the color 1 indicator light 19 and the color 2 indicator light 20 receive the computer signal, the ground chain signal indicator light 21 receives the ground chain signal, the operation preparation button 27 is used to detect whether the equipment is normal, and if everything is normal, the operation preparation button 27 can be pressed to turn on the green light, 22 is the start button, 26 is the manual and automatic adjustment button, the color adjustment knob 23 can adjust the spray color in manual mode, the maintenance button 25 is the maintenance position, and the emergency stop button 24 is the emergency stop button. Through PLC control, the spray gun distance can be guaranteed to be equal, ensuring the uniformity and consistency of the spraying. Through automatic control, automatic spraying can be achieved, reducing labor costs and improving production efficiency.

[0030] Connection relationship: Figure 1 As shown, the two slide rails of the storage plate 4 and the screw slide rail 1 are fixed with bolts, the infrared sensor 3 is installed on the upper edge of the storage plate 4 through an extension plate, the pneumatic slide rail 2 is fixed on the lower end of the storage plate 4, the automatic spray gun 7 is fixed on the spray motor 8, the air pipe and the two-link paint pipe 9 provide paint and compressed air for the automatic spray gun 7, the solenoid valve 10 is used to control the on and off of the spray pipeline 14, the wire 11 transmits the electrical signal of the PLC control panel 12, and the spray pipeline 14 is connected to the air source and paint source 13 of the factory. Figure 2 As shown, the transverse nylon towing strap 15 is fixed on the storage plate 4, as shown in FIG. Figure 3 As shown, the longitudinal nylon towing belt 16 is fixed on the screw guide rail 1 through an angle iron, and the infrared sensor 3 is fixed on the storage plate 4 through an extension plate 17.

[0031] Structural composition and working principle: An automatic spraying device includes an automatic spray gun, a screw guide rail, a pneumatic guide rail, a PLC control panel, an air pipe, a paint pipe, and a sensor. The control part is controlled by a PLC control panel, and the moving part is in an I-shaped structure. The longitudinal motion structure is two 1.5m screw guide rails. The left slide rail is fixed with an angle iron to a nylon drag in the same direction. There are 4 paint tubes, 6 air pipes and 2 wires in the nylon drag. A rectangular storage board is fixed on the slider of the screw guide rail, an infrared sensor is fixed above the storage board, and a 2m pneumatic guide rail placed horizontally is fixed below. Two limit blocks are set on both sides of the pneumatic guide rail. Two automatic spray guns are fixed on the slider of the pneumatic guide rail. Behind the guide rail, there is a nylon drag with 4 paint tubes, 6 air pipes and 1 wire. In this way, an automatic spraying device is formed. This device can automatically spray the spraying position of the vehicle according to the set program. Example 2

[0032] A spraying method of an automatic spraying device comprises the following steps: S1. When the production conditions are ready, press the operation preparation button and then press the start button to start the equipment; S2, the vehicle runs on the ground chain, the longitudinal motion structure is synchronized with the ground chain signal, and when the ground chain stops, the longitudinal motion structure and the ground chain stop moving at the same time; S3, when the vehicle runs on the ground chain to the operable area and passes through the infrared sensor position, the equipment starts to execute the PLC setting program; S4. When reaching the spraying position, the lateral motion structure starts spraying with the spraying motor and the automatic spray gun. After spraying, it returns to the original position and waits for the next operation.

[0033] The above embodiments describe the present invention in detail, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. An automatic spraying device, characterized in that: include: A spraying mechanism, comprising a spraying motor, at least two automatic spray guns arranged on the spraying motor, and a starting rotating disk for adjusting the spraying angle of the automatic spray guns, wherein the automatic spray guns are connected to an air source and a paint source through a spraying pipeline; The transverse and longitudinal motion mechanism comprises a transverse motion structure and a longitudinal motion structure arranged in an I-shape. The transverse motion structure can move longitudinally along with the longitudinal motion structure, and the spraying motor and the automatic spray gun can move transversely along with the transverse motion structure.

2. An automatic spraying device according to claim 1, characterized in that: The longitudinal motion structure includes two parallel screw rails and a screw slider slidably arranged on the screw rails. The transverse motion structure includes a rectangular storage plate fixed on the two screw sliders, a pneumatic slide rail arranged below the storage plate, and a pneumatic slider arranged on the pneumatic slide rail.

3. An automatic spraying device according to claim 2, characterized in that: An infrared sensor is also arranged above the storage plate.

4. The automatic spraying device according to claim 2, characterized in that: The spraying motor is arranged below the pneumatic slide block.

5. The automatic spraying device according to claim 2, characterized in that: A nylon dragging belt in the same direction is fixed on the screw rod slide rail on one side by an angle iron, and a nylon dragging belt is arranged behind the pneumatic slide rail, and a spraying pipeline and a conducting wire are arranged in the nylon dragging belt.

6. The automatic spraying device according to claim 1, characterized in that: The spraying pipeline includes four paint pipes and six air pipes.

7. The automatic spraying device according to claim 1, characterized in that: The spraying pipeline is also provided with a solenoid valve.

8. The automatic spraying device according to claim 1, characterized in that: The start rotating disk includes a PLC control disk, on which a PLC power indicator light, a color 1 indicator light, a color 2 indicator light, a ground chain signal indicator light, a start button, a color adjustment knob, an emergency stop button, a maintenance button, an automatic manual button, an operation ready button and a PLC controller are provided.

9. A spraying method of an automatic spraying device, characterized in that: The steps include: S1. When the production conditions are ready, press the operation preparation button and then press the start button to start the equipment; S2, the vehicle runs on the ground chain, the longitudinal motion structure is synchronized with the ground chain signal, and when the ground chain stops, the longitudinal motion structure and the ground chain stop moving at the same time; S3, when the vehicle runs on the ground chain to the operable area and passes through the infrared sensor position, the equipment starts to execute the PLC setting program; S4. When reaching the spraying position, the lateral motion structure starts spraying with the spraying motor and the automatic spray gun. After spraying, it returns to the original position and waits for the next operation.

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