SU1389874A1 - Arrangement for applying paint coatings - Google Patents

Abstract

The invention relates to mechanical engineering, in particular, to means of mechanized application of a paint coating to the recesses and drawings by the knurling method, and allows the technological capabilities of a device for applying paint coatings to be expanded. The device has a bracket 4 with a directional pin, they 5 and a lead screw 7 mounted therein with an electric actuator 9 for interacting with the core

Description

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with the start 1 installed in the guides 5 of the bracket 4. Means for cleaning the surface to be sealed are made in the form of a drum 18 installed on the bracket 4 with a radially positioned cleaning plate with rubber plates 21. The drive of the knurling roller 2 and ductor drum 3 has a toothed rail 6 mounted on the bracket 4, and the overrunning clutches, one of which is mounted on the shaft of the knurling roller 2, and the other on the shaft of the ductor drum 3 with the possibility of interaction with the rack 6 by means of a gear transmission. The bracket 4 is provided with a cam mechanism, the drum 18 has a ratchet cage with a dog and a lever with an additional dog mounted on its shaft, while the ratchet wheel is rigidly connected to the shaft and the lever is freely mounted on the shaft to interact with the cam mechanism. 2 h. the item of f-ly, 14 ill.

one

The invention relates to mechanical engineering, namely to the means of mechanized application of a paint coating to the depressions and drawings by the method of knurling.

The purpose of the invention is the expansion of technological capabilities.

FIG. 1 shows a paint spraying device, a general view; in fig. 2 is a view A of FIG. one; in fig. 3 is a view B in FIG. one; in fig. 4 shows a section B-B in FIG. 2; in fig. five --. a section of YYY in FIG. four; in fig. 6 is a section DD-D in FIG. five; in fig. 7 is a sectional view E — E of FIG. five; in fig. 8 is a view of FIG. 3; in fig. 9 is a sectional view 3-3 of FIG. one; in fig. 10 is a section through the AND-fig in FIG. eight; in fig. 11 is a section to K — K in FIG. one; in fig. 12 is a section L-L in FIG. 9; in fig. 13 is a section M-M in FIG. 12; in fig. 14 - section HN on. 12.

The paint spraying device comprises a knurling roller 2 mounted in the housing 1, a ductor drum 3, and a means for cleaning the sealing surface, a bracket 4 with transverse rectangular guides 5, a rack 6 and a running screw 7.

The bracket 4 is attached to the bed of the aggregate machine, the lead screw 7 is mounted in the bracket 4 on the slide bearings and is driven through the V-belt transmission 8 by the electric motor 9. On the longitudinal rectangular guides 5 of the bracket 4 there is a housing 1 having transverse transverse rectangular guides 10 on which rack 11 is fixed. On rack 11, duct drum 3 is mounted on slide bearings, in tank 12 of which, covered by cover 13, is paint 14, knurled rubberized roller 2, gears 15 and a star Chain gear 16 of the actuator of the ductor drum 3 and the knurling roller 2. The knurling roller and the ductor drum are driven from gear 17 when it interacts with the rail 6.

Means for cleaning the printed surface is made in the form of a wipe

drum 18.

The left end of the post 11 has vertical rectangular guides 19 on which the carriage 20 of the reel 18 is mounted and secured. The reel 18, spaced from interchangeable rubber plates 21 fixed radially by a disk 22 on the hub 23, is mounted on a shaft 24 which is mounted in the carriage on rolling bearings.

At the other end of the shaft 24 are installed

On the key there is a ratchet gear wheel 25 and a loose lever 26 for driving the wiper drum 18 with a roller 27 at the lower end. The lever can rotate on the shaft within 15 ° between the adjustable stops 28. It turns from the cam 29,

held by the spring 30 and located on the bracket device. The lever at the top has a pawl 31 with a spring 32 and is held in a vertical position by a spring 33, the second end of which is mounted on the carriage 20.

In addition, on the carriage 20 at the top of the axis 34 is mounted, a second pawl 35, which is pressed against the ratchet wheel by a torsion spring 36.

Gear 15 mounted on the shaft

of the knurling roller 2, is the outer cage 38 of the first overrunning clutch, the inner cage 37. of which is associated with the chain transmission 16, gear 15, mounted on the shaft of the ductor drum - the outer cage 39 of the second overrunning clutch,

inner race 40 which is rigidly connected to the shaft.

Paint spraying device

Coating works as follows.

The electric motor 9 through the V-belt

the transmission 8 rotates the spindle 7. The housing 1 moves along the guides 5 forward, the lever 26 locates the cam 29, rotates all the way and turns the ratchet 25 by 15 °. At the end of the stroke, the roller lever 27 rises above the cam and, slipping over it, with further progress of the body returns the spring 33 to its original vertical position, snapping the ratchet with the pawl 31 one tooth, which is locked to the pivot with the pawl 35. the drum 18 by 15 °, i.e. the drum places a fresh rubber plate 21 in a working vertical position.

With further progress forward, the rubber plate of the drum pre-cleans the surface of the blanks to be painted. The propeller drum is prevented from turning by the force of the friction of the pawl 31, adjustable spring 32, on the ratchet wheel's tooth, the moment of resistance to rotation from which is greater than the moment of the friction force of the rubber plate 21 about the pack of blanks.

Continuing to move forward, the body of the rivet 17 slides onto the rail 6 and through the chain drive 16 rotates the inner race 37 of the first overrunning clutch. At this time, the roller 2 rolls over the surface of the workpieces, rotating the gear 15 coaxial with it, the outer race 38 of the first overrunning clutch and the outer race 39 of the second overrunning clutch, which runs idle, since the resistance to rotation of the inner race 40 from the duct drum 3 is significant and it remains motionless.

At the end of the body idle, when the purge drum 18 and knurl 2 pass through the surface to be painted, the limit switch is activated, switching the drive screw drive motor to reverse.

Case 1 begins to move backward, made a working stroke. The gear 17 rotates when interacting with the rail 6, rotates the now closed first overrunning clutch through the chain drive and the knurling roller 2 through the idler gear.

In addition, the intermediate gear rotates the clip 40 of the overrunning clutch, which operates and rotates the shaft of the ductor drum 3.

The ductorary drum 3, rotating, removes the black paint from under the tank's knife and transfers a thin layer of the paint for contacting with it and the forcibly rotating knurling roller 2, which has a rotation frequency 2.5 times greater than the ductor drum 3. Thus, the batch of blanks in a jig (not shown) of the knurling roller 2 is suitable for having fresh paint on its cylindrical surface.

Entering into contact with the surface of the workpieces, the rolling roller applies paint and rubs it with a thin layer due to counter-rotation.

After some time, the rubber plate 21 of the clean drum 18 comes to the painted and dried surface, and, passing through it without a gap, cleans the excess paint, leaving it in the grooves (milled or engraved).

The force of the workpieces on the purge drum is transmitted to the ratchet wheel and is received by the dog 35.

When the knurling roller leaves the painted surface, the brushes 17 get out of engagement with the toothed rack and the forced rotation of the knurling roller and the ductor drum is stopped.

Then, having finished the cleaning, it displaces from the short surface of the blanks the rubber lobe of the clean drum 18. The roller 27 of the lever 26 hits the inclined surface of the cam 29, lowers it, pressing the spring 30. The end switch turns off the drive screw drive motor 7 of the device.

The invention allows to expand the technological capabilities of the device for applying paint coatings due to the possibility of using quick-dried paint materials, such as paint for drawing linotype matrices, automating the drawing process and working as part of an aggregate machine.

35

Claims (3)

1. Device for applying paint coatings containing knurled roller and ductor mounted in the housing 0 driven drum and means for cleaning the printed surface, characterized in that, in order to expand technological capabilities when using various quick-drying inks, it has a bracket with guides and an electrically driven lead screw mounted on it to interact with the body mounted in brackets, while the means for cleaning the surface to be printed is made in the form of a drum mounted in the housing with radially arranged elastic elements. 2. The device according to claim 1, characterized in that the drive of the knurling roller and the ductor drum has a toothed rack, 5 mounted on the bracket, and overrunning clutches, one of which is mounted on the shaft of the knurling roller, and the other on the shaft of the ductor drum with the possibility of mutual act with a rack through gears. 3. The device according to claim 1, characterized in that the bracket is provided with a cam mechanism, the drum has mounted 18 11 vieb on its shaft there is a ratchet wheel with a dog and a lever with an additional dog, while the ratchet wheel is rigidly connected to the shaft, and the lever is freely mounted on the shaft to interact with the cam mechanism. Z5 FIG. five Vb ten V //// 2 M / //// / - /// - j  /////////////////////////// Zl FIG. 6 HER 1 27 Fi2.9 6 and-and 35 20 FIG. ten 12 VVXKNXXXV FIG. eleven FIG. 12 Well Tr FIG. 13 ZV 22 Physical Center