SU942809A1 - Apparatus for applyng a coating on outer and surfaces of bodies of revolution - Google Patents

Description

one

The invention relates to devices for mechanized coating.

A device for coloring the end surfaces is known, comprising a rod, a guide, a spray carriage kinematically associated with a rod. The carriage 5 of the device is provided with a roller supported on the surface to be painted, and is kinematically connected with the rod. A fixed conical gear and a cross are mounted on the rod, on the axes of which the guide and conical shchestrin are located, Q, which pulls in contact with the fixed gear of the rod and is connected to the carriage by a chain transmission 1.

A disadvantage of the known device is the direct connection of the device with the surface to be painted, which makes it possible to paint only when the sprayer is once moved from the center of the surface to, to its periphery or vice versa, and that the uniformity of the coating depends on the cleanliness of the painted surface treatment.

The closest to the proposed technical essence and the achieved result is a device for coating the outer end surfaces of rotation bodies containing a sprayer, its movement mechanism in the form of a power cylinder with a brush connected to the sprayer 2.

A disadvantage of the known device is that the surface can be painted only when the sprayer is unilaterally moved from the center to the top. to its periphery or vice versa.

The purpose of the invention is to increase the uniformity of the coating.

Claims (2)

This goal is achieved by the fact that in the device for coating the outer end surfaces of rotation bodies containing a sprayer, its movement mechanism in the form of a power cylinder with a rod connected to the sprayer is made on the shaft of the power cylinder with a continuously changing pin, and concentric with a rod, a worm wheel is mounted for rotation, on the hub of which a finger is rigidly fixed, placed in the groove of the rod, and the worm wheel is kinematically connected with the sprayer by means of a gear that reiki. FIG. Figure 1 shows the proposed coater; in fig. 2 shows section A-A in FIG. 1. The coater comprises sprayer 1; the mechanism of its movement in the form of a power pneumatic cylinder 2 with a rod 3 and a piston 4. The cavities 5 and 6 of cylinder 2 are connected by channels 7 and 8 through a control system with a power source (not shown). On the rod 3 is a screw groove 9 with a continuously changing step. When moving, the rod 3 is mixed in directions 10, and its rotation around its axis is excluded due to the presence of a key P.- Concentric with the rod 3 a worm wheel 12 is installed with the possibility of turning in bearings 13 and 14. The hub 15 of the worm wheel 12 is rigid the pin 16 is fixed, which is placed in the screw slot 9 of the rod 3. The worm gear 12 is engaged with the toothed rack 17, which is connected to the sprayer 1 through the rod 18. The rail 17 is closed by the casing 19 and placed in the support 20. The device works as follows. When supplying the working agent (compressed air) through the channel 8 to the cavity 6 of the cylinder 2, the piston 4 is uniformly stirred to the left. At the same time, the rod 3 is also mixed with the screw groove 9, beginning by means of the finger 16 to turn the hub 15 of the gear wheel 12, which will move the rail 17 to the left. Throttle speed 3 is constant. As the angle of inclination of the screw groove decreases, the angular velocity of the crown of the gear wheel 12 increases and the speed of movement of the paint sprayer 1 mounted on the rod 18 of the rail 17 increases accordingly. When the working agent is fed into the cavity 5 through the channel 7, the piston 4 moves to the right and the brush 3 also shifts to the right, returning the spray gun 1 to its original position with decreasing speed. The yusha 10 guards the cam against tilting when the pin 16 interacts with the screw groove 9. The hub 15 of the gear wheel 12 rotates in the bearings 13 and 14 to prevent the axis of the rail 17 from tilting relative to the crown of the wheel 12. change the value of the working pressure (from 0.2 to 0.63 MPa) supplied in cavities 5 and 6, thereby changing the spray gun feed rate. With a pneumatic actuator piston stroke of 120 mm, the maximum stroke of the paint sprayer is 900 mm. The use of the proposed device improves labor productivity, improves the quality of the coating, its uniformity (uniform elongation), reduces the loss of paintwork materials. The invention of the device for coating the outer end surfaces of the vra bodies, contains a sprayer, its mixing mechanism in the form of a power cylinder with a rod connected to the sprayer, characterized in that, in order to improve the uniformity of the coating, a helical groove is continuously formed on the stem of the power cylinder changing the step, and concentrically with the stem, the worm wheel is installed with the possibility of vrasheni, on the hub of which the finger is rigidly fixed, placed in the groove of the rod, and the swivel wheel nematically linked to the sprayer via a rack. Sources of information taken into account during the examination 1. USSR author's certificate No. 450596, cl. B 05 B 13/06, 1972. 2. Authors certificate of the USSR. No. 163091, cl. B 05 B 13/04, 1963 (prototype).  Ki stroke acKopacf i // i / r7e / SL n U-1 13