SU856580A1 - Apparatus for smoothing and running in coatings - Google Patents

Description

(5A) DEVICE FOR SMOOTHING AND INSERTING COATINGS

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The invention relates to canesenite liquid and paste-like paints and varnishes for flat products and can be used in the woodworking and other industries.

A device for smoothing and rubbing coatings is known that contains a smoothing roller and two paired squeegees, one of which is set at an angle of 40-75 to the surface of the part and produces additional rubbing and leveling of the coating, while the second one clears the first of excess paintwork material that gradually accumulates in the blade area one}.

In this device, the presence of a fixed squeegee does not allow the supply of objects with a coating end to the end, since the accumulated excess paintwork material will drop to the longitudinal edges of the object and contaminate it. Therefore, one of the conditions for obtaining

A quality coating on the device is the supply of objects with discharges, during which the blade is cleaned, which reduces the performance of the device. In addition, during operation, an uneven wear of the blade takes place due to the abrasive effect and heterogeneity of both the paintwork material and the surface of the part, which

10 leads to a deterioration in the quality of application and the need for frequent replacement of the squeegee.

Closest to the present invention is a device comprising an aqueous tape working member installed at an angle to the direction of movement of the coated object, means for pressing the tape to the object and driving C2.

20

In the known device, the working body is hollowed out in the form of an endless belt located with its working surface parallel to the plane of movement of the coated object, and interacts with the object with the lateral surface of the tape. By virtue of such a design, the known GDIO device for smoothing and rubbing only hard coatings does not provide high-quality smoothing of liquid and pasty coatings. The purpose of the invention is to provide high-quality smoothing of liquid and pasty coatings. To achieve this goal in the device for. smoothing and rubbing coatings containing princess flax, precise working body installed at an angle to the direction of movement of the coated object, means for pressing the tape to the object and driving, the working body is made in the form of a Möbius strip located working axis of the object with coating. In this case, the angle of inclination of the working branch to the plane of movement of the object is selected within 15-60. And also the fact that the device is equipped with means for cleaning and wetting the surface of the working body. FIG. shows the proposed device; in fig. 2 - the same plan view. The device for smoothing and retraction of the coatings contains a drive medical treatment unit 1, installed at an angle about the direction of movement of the coated object, support rollers 2 for the latter and drive 3,. The working unit 1 is made in the form of a Mobius loop, located by the working branch 4 obliquely to the plane of movement of the coated object and the envelope of the drive rollers 5. Angle (b) of inclination of the working branch to the plane of movement of the object is selected within 15-60, because of which the smoothing of the coatings is carried out by the lower edge of the tape. tape of the working body to the object in the device are means 6. In the device there are also means for cleaning 7 and wetting 8 of the working surface of the working body 1 and pipelines for supplying 9 and removing the solvent 10. The means 7 for cleaning are made in the form of contacting with the surface of the tape of the working body 1 plate (not shown in the drawings) and collection 1 for excess paint with a return pipe 12, the proposed device can be used to smooth coatings applied to objects 13 moved by the feed conveyor erom 14, a mechanism for coating a conductive coated 15 and 16 of the metering rolls. The device works as follows. The objects 13 moving along the supply conveyor 14 with the roller 13 are applied with a liquid or paste-like coating, for example, a paint and varnish composition 17, the flow of which is regulated by the dosing roller 16. Then the applied coating layer is rubbed and smoothed over the surface of the objects 13 by a moving working member tape. Due to the presence of the means 6, a high-quality smoothing of the surface of objects 13, having a deviation from the specified geometrical dimensions, is provided. The excess paintwork composition is carried away by the tape of the working device outside the working area, removed by the plate of the device 7 and collected in the collection P, from which the supply system of the paintwork material is fed back via pipeline 12. Next, using the tool 8, additional cleaning and wetting of the tape with the solvent coming through the pipeline 9 is performed. The spent solvent by the pipe 10 is fed to the solvent. regeneration, then, can be reused in the system. The object with the ironed coating enters for further processing, for example, drying the coating. In order to avoid the excess of the applied composition from the tape of the working body to objects 3 and to observe that the tape must always go over the part that has been cleaned, the speed of the tape alignment is set in accordance with the inequality V7x. where V is the speed of the tape, m / s; and - linear speed of the feed conveyor, m / s; с is the angle between the velocity vectors. The implementation of the working body in the form of a Mobius band increases the working surface of the working body and increases the period of effective work. The proposed device provides high performance and quality smoothing coatings. The formula of the invention 1. A device for smoothing and rubbing coatings, containing a driving belt unit installed at an angle to the direction of movement of the coated object, av V C TV a. TRTAINING TRNUFFY - SS ... .. for pressing the tape to the object and driving, characterized in that, in order to ensure high quality smoothing of liquid and paste coatings branch obliquely to the plane of movement of the object with the coating; 2. The device according to claim 1, characterized in that the angle of inclination of the working branch to the plane of movement of the object is selected within 15-60®. 3. The device according to claim 1, characterized in that it is provided with means for cleaning and wetting the surface of the working body. Sources of information taken into account in the examination 1. Bukhtirov V.P., Equipment, general D.11. Equipment for the finishing of wood products. lii- .. Lesna ppo vpnopennost, M., 1971, p. BEHIND. 2. US patent No. 3030914, cl. 118-106, published. 1962 (prototype). PacmSopume / ib 8 cucmgnjj F nSh MlJwte m N.///

Claims (3)

Claim 1. A device for smoothing and rubbing coatings containing a drive tape working body, installed at an angle to the direction of movement of the coated object, means for pressing the tape to the object and the drive, characterized in that, in order to ensure high-quality smoothing of liquid and paste coatings, the working body is made in the form of a Moebius tape located by a working branch obliquely to the plane of movement of the coated object, 2. The device pop. 1, about l and - ₅ characterized in that the angle of inclination of the working branch to the plane of movement of the object is selected within 15-60 °, 3. The device according to π. 1, characterized in that it is supplied 10 but with means for cleaning and wetting the surface of the working body.