SU503703A1 - Device for shot blasting surfaces - Google Patents

Description

.

"O-posaupatvlvo with the help of crankshaft-uiaiyinoy mechanism 7, driven by cable 4, mounted on the carriage device 8 with the switch Lem9 and deadlock stop 1O,

The hardening device 8 has

mounted on a trolley 1 rotary drum 1D., on whose sloping surface the ends of the cable are fixed

4, and two grooves 13 and 14 were made on the end surface 12, the length of which is identical to 1/4 of the step and 3/4 of the step of the Si1, described by the colo1OA4

5, and the stops 15 and 16, which restrict the rotation of the drum 11, interacting respectively with the tor1 surfaces 17, 18 and 20 of the slots 13 and 19 and 14, respectively. The stop 15 is axially movable and is kinematically connected to the switch 9.

The switch 9 is mounted on the axis 21 and spring-loaded spring 22 two-arm lever 23, one shoulder of which is kinematically connected to the stop 15, and the other has two pins 24 and 25, interacting alternately with a spring-loaded fork 27 mounted on the movable rod 26.

For adjusting the lengths of the grooves 13 and 14 when pulling the cable 4, they have, respectively, the crunches 28 and 29.

The device ap shot-blasting surface treatment works as follows. From the actuator 3, by means of the traction device - cable 4, through the device 8, the trolley 1 is brought into reciprocating motion along the guide path 2. At the same time, by means of the crank-connecting rod mechanism 7, which communicates the reciprocating movement of the carriage 6, the nozzle 5 receives a swinging motion, as a result, it moves in a sinusoid with respect to the surface to be treated 30.

For a high-quality surface treatment 30, the carriage 1 is given at least four passes, therefore the nozzle 5, which feeds an abrasive stream, for example, a fraction on the surface 30, will describe four sinusoids displaced one relative to another by a certain distance.

This is achieved as follows. We take the rightmost position of the trolley 1 as the initial position, while the movable stop 15 of the device 8 cuts from the end surface 17 of the pa 13, the movable stop 6 is located in the groove 14 freely, and the plug 27 ps5 of the switch 9 is installed in the setting B.

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When the trolley 1 is moved, the trigger 4 turns the drum 11 of attachment 8 up to the stop of the end surface 18 of the groove 13 into the support 15, as a result of which the nozzle 5 moves along the first stage of the trolley as it moves further.

At the cart of the trolley, the rod 26 of the switch 9, interacting with the bolster stop 10, transfers the plug 27 to the position G, the latter, the interaction ByH with the pin 25 of the two shoulders 23, turns it counterclockwise,

providing output movable stop 15 and; the groove 13 and its fixation with the help of the spring 22.- After that, the cart will be mixed in the opposite direction, the cable 4 rotates the drum 11 up to the stop of the end surface .0 of the groove 14 into the fixed stop 16, as a result of which the nozzle 5 moves along the second the sinusoid is mixed with respect to the first one by 1/2 steps, and the rod 26 of the switch 9 returns to its original position and sets the plug 27 to position B.

When the trolley 1 is moved to the left again, the cable 4 at the beginning of the turn turns the drum 11 up to the stop of the end surface 19 of the groove 14 into the fixed stop 16, as a result of which the nozzle 5 moves along the third sinusoid displaced with respect to the second by 3/4 pitch. At the end of the trolley stroke, the rod 26 of the peri-switch 9, interacting with the deadlock stop 10, transfers the plug 27 to position D. At the same time, I interact with the pin 24 of the double-locking lever 23, turns it clockwise

0 and removes from the fixed position the movable abutment 15, which is mixed up to the stop on the end surface 12 of the drum 11. After this, the hedgehog moves the body in the opposite direction, the cable 4 turns the bar bap 11 up to the stop of the end surface 17 of the groove 13 in the stop 15, which) P when turning the drum 11 enters into the patch Iv, as a result of which, with the mixing of the trolley 1, the nozzle 5 moves along the fourth sine

0 de shifted in relation to the third by 1/2 step.

Then the cycle of operation of the device is repeated.

The use of the invention will allow the base to be qualitatively and uniformly processed at the top of the products, which will increase the efficiency of the device ;: it will be twice as comparable with izvesgnychi devices.

Formulas

invented

1. A device for shot-blasting treatment of surfaces, containing a wedge displaced from a drive by an infinite traction body, a carrier nozzle rocking along a sinusoid and adapted for crushing a body organ on a cart, characterized in that processing the entire plane of the product by repeatedly moving the nozzle along sinusoids, mix, nn1m. on an equal schag, the fixture for fixing the traction body on the trolley is made in the form of a rotary drum, having two slots of different length bounding its rotation on one of the end surfaces, interacting with stops fixed to the trolley

moreover, the stop interacting with the groove of a smaller length is made movable in the axial direction and is kinematically connected with a switch that interacts with the I dead end stop.

; 2. The device according to claim 1, wherein the switch is fixed in the form of a spring-loaded two-arm lever, one arm of which is kinematically connected to the movable stop of the first arm, and the other has two pins, interacting alternately with the spring-loaded plug installed on the (-; Nome shtoke).

I 3. The device according to claim 1, of which is: with the aim o6eciJe4e "not a constant step between the sine" "described by the nozzle, the grooves j of the surface" of the araban are adjustable according to i length.

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