SU761024A1 - Apparatus for automatic painting of articles - Google Patents

Description

The invention relates to equipment for automatic painting of articles moved by a conveyor.

A device for coloring products is known, which contains a carriage mounted on 5 guides with a spray gun and a photoelectric or ultrasonic sensor mounted directly around the spray gun operating on the principle of a reflected beam [ΐ].

A disadvantage of this device is that such sensors require instant activation of automatic paint sprayers, and instantaneous switching on and off can only be ensured by solenoid valves, which are difficult to apply in paint shops due to heat and air damage. fire hazards (explosion-proof execution of electromagnetic devices and other special protective measures are necessary) ..

A device for the automatic painting of products is known, which contains a carriage mounted on a guide with end switches and a dispenser and sensors of the control system for the operation of the dispenser mounted on the carriage. The sprayer is connected to the ’reading device, through which 30

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The tape with the recording of information about the contour of the painted product [2] has been omitted.

The drawbacks of the device is its complexity and duration of the process of recording information about the contour of the product, which causes a significant loss of time when changing the painted product.

The purpose of the invention is to simplify the design and operation of the device.

To achieve this goal, in the device for automatic painting of products containing a carriage mounted on a guide with limit switches and mounted on the carriage sprayer and sensors of the control system of the sprayer operation, the latter are located on both sides of the sprayer during its movement, and each sensor is connected to a corresponding limit switch and can be installed with the possibility of regulating the distance between it and the sprayer.

This design ensures that the spray gun is turned on only for the time when the product is in front of it, without a complex system of recording and reading information about its contour.

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and no loss of time when switching to a product of a different configuration.

FIG. 1 shows a painting robot, a general view; on league. 2 is a diagram of a tracking system for controlling the operation of the sprayer.

The device for automatic painting of products comprises a control panel 2 fixed on support 1 and provided with a guide (not shown), a rack 3 in which a drive (not shown) mounted is kinematically connected with a carriage 4 mounted on a guide. The carriage 4 is equipped with a skid 5, interacting with the limit switches b and 7, limiting the stroke of the carriage and installed on the guide, taking into account the size of the painted product. On the carriage 4 a pneumatically controlled automatic spray gun 8 and sensors 9 and 10 of the operating control system are located. the spray gun mounted on the rods 11, mounted in the supports 12 clamps 13.

The sensors 9 and 10 are installed with the ability to control the distance between them and the spray gun 8 by moving the rods 11 in the supports 12 depending on the response time of the pneumatic system and the speed of movement of the carriage 4. The sensors 9 and 10 are electrically connected to the amplifier 14 connected to the electro-pneumatic valve 15, and the latter with the sprayer 8. Sensor 9 is connected, in addition, with the limit switch 6, and the sensor 10 with the limit switch 7, and if one sensor is turned on, the second one is turned off.

The device works as follows.

At the entrance of the product transported on the overhead conveyor, the carriage 4 drive turns on in the painting zone, which begins to make a reciprocating movement along the guide. When the carriage 4 moves from the bottom up, the sprayer is controlled by the upper sensor 9, which detects the edge of the product, transmits a signal to the amplifier 14 and further to the electro-pneumatic valve 15, which includes the sprayer 8. The material being sprayed begins to flow at the moment when the product comes in front. spray. The response time of the sensor-amplifier system — the electro-pneumatic valve-sprayer is equal to the time it takes the carriage to move a distance equal to the distance between the sprayer and the sensor.

In the same way, the sprayer turns off; sensor 9 detects the end of the product, the signal stops, However, while the system is triggered, the material still comes from the sprayer, and only when the sprayer passes the product does the sprayer turn off.

The carriage 4 continues to move up, its skid 5 acts on the limit switch 6, while the sensor 9 turns off and the sensor 10 turns on. In addition, the limit switch b acts on the drive, the carriage starts to move in the opposite direction, down. The signal from the sensor 10 turns the spray gun 8 on and off, then the carriage's slide acts on the limit switch 7, the carriage starts to move up, instead of the sensor 10, the sensor 9 is working, etc.

This embodiment of the device allows you to paint products of complex configuration with virtually no loss of sprayed material for the contour of the product.

This reduces air pollution and reduces the cost of collecting and regenerating material that has not entered the product. .

The device is simple in design and in operation, it does not take time to adjust when painting products of various configurations.

Claims (2)

Claim 4. Device for automatic painting of products, containing a carriage mounted on a guide with limit switches, and dispenser and sensors of the control system for operation of the dispenser, mounted on the carriage, characterized in that, in order to simplify the design and operation of the device, the sensors are located on both sides of the dispenser along its motion, and each sensor is connected to a corresponding limit switch. 2. Device pop. 1, differing in that each sensor is installed with the possibility of regulating the distance between it and the sprayer.