US2096951A - Coating machine - Google Patents

Description

Oct. 26, 1937. E. c. ZABLOCKI COATING MACHINE Filed March 25, 1956 2 Sheets-Sheet 1 m WY e z Oct. 26, 1937. E. c. ZABLQCKI 2,096,951

COATING MACHINE Filed March 23, 1936 2 Sheets-Sheet 2 INVENTOR Z2541: d 241 0611:

A1-roRNEYs,.

Patented Oct. 26, 1937 UNITED STATES PATENT OFFICE Briggs Manufacturing Company,

Detroit,

Mich., a corporation of Michigan Application March 23, 1936, Serial No. 70,346

9 Claims.

This invention relates to coating machines and has for one of its principal objects to provide a machine which will quickly and economically apply a coating of adhesive or other material to fiat articles. In particular, one of the important objects of this invention is to provide a means for economically applying adhesive to the backing members of arched trim panels which extend around above the windows of closed automobile bodies, the adhesive serving to secure the trim fabric to the panel or backing member.

Another object of this invention is to provide a coating machine having rotary brushes and a simple means of feeding to the brushes the material to be applied by the machine.

Another object of this invention is to provide a coating machine by means of which a single person can coat articles as fast as several persons using spray guns or other means heretofore utilized.

Other objects of this invention will appear in the following description and appended claims, reference being had to the acompanying drawings forming a part of this specification wherein like reference characters designate corresponding parts in the several views.

Fig. 1 is an isometric projection of one of the embodiments of the invention.

Fig. 2 is a side elevation of the machine shown in Fig. 1.

Fig. 3 is a front elevation with the feeding table or stand seen in Fig. I removed and with parts broken away or shown in section.

Fig. 4 is a sectional view on the line 44 of Fig. 3 taken in the direction of the arrows.

Fig. 5 is a partial rear elevation.

Before explaining in detail the present invention it is to be understood that the invention is not limited in its application to the details of construction and arrangement of parts illustrated in the acompanying drawings, since the invention is capable of other embodiments and of being practiced or carried out in various ways. Also it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation, and it is not intended to limit the invention claimed herein beyond the requirements of the prior art.

As is shown in the figures, the present embodiment of the invention, herein illustrated by way of example, comprises a pair of rotary brushes Ill and Il mounted one above the other in suitable bearings l2 and 13. The lower bearings l3 are fixed, being secured to the sides of a sheet steel receptacle I4, while the upper bearings l2 are adjustable, being vertically movable in guides I5 mounted on the ends of an upward extension I60. of the receptacle and adapted to be raised or lowered by screws Hi.

The front and rear sides of the receptacle extension l4a are open and the top of the receptacle M has an opening Mb (Fig. 4) through which the upper part of the lower brush ll projects into contact with the bottom of the upper brush in, so that thin articles fed between the brushes will be brushed on both sides and so that one'brush will supply coating liquid to the other. The lower brush is supplied with coating liquid or adhesive by means of an agitator or splasher I! located in a reservoir I8 within the receptacle [4 below the lower brush II. The splasher 11 comprises a horizontal shaft which lies just above the normal level of the coating material l8 and which carries a number of radially extending pins or fingers l'lb which reach down into the coating material l8 and splash or throw it up onto the lower brush II. I

The liquid l8 in the splasher tank 14 is supplied from a lower tank or reservoir l3 through pipe line 24 by a pump and drains back through a pipe 2|. Valves 22 and 23 in the pump line 24 and drain pipe 2| serve to regulate the level of the liquid l8 in the splasher tank l4 and also allow the tank M to be drained into the lower tank [9, from which the liquid can be easily removed when the machine is to be stopped for a time. An overflow pipe 25 leading from the splasher tank Hi to the reservoir l9 prevents the liquid [8 from ever rising above a predetermined level.

The agitator or splasher I1 is driven by a belt 26 from a motor 21 and, in turn, drives the rest of the machine. A gear 28 keyed to the shaft of the splasher l1 drives a large gear 29 which rotates freely on the shaft 3| of the lower brush and is integral with a small gear 30 driving the larger of another pair of gears 32 and 33 freely rotatable on the upper brush shaft 34. The small gear 33 of the pair on the upper shaft 34 in turn drives a large gear 35 keyed to the lower shaft, the lower brush H being thus driven at a considerably reduced speed. The upper brush I0 is driven from the lower one I I by apair of gears 36 and 31 keyed onto the other ends of the brush shafts l0 and I I. The pump 20 is driven by a belt 38 from one end of the splasher shaft I'M.

A feed table 39 is provided on the receiving side of the machine so that a trim panel backing member 40 to be coated with adhesive can be laid on the table and easily slid in between the brushes l0 and II. One end of the table rests upon a pair of legs 4| while the other rests upon the top of the splasher tank It so that the table can be easily removed to allow access to the lower part of the machine. Longitudinal angle members 390 at the sides of the table provide guides ensuring proper feeding of the work to the coating rolls.

The discharge side of the machine is provided with a chute 42 to receive the coated articles and in which they can accumulate until they are removed by an attendant. In order to ensure that the thin stampings 40, which the machine is intended to coat, are discharged into the chute l2 and do not stick to the brushes, the brushes l0 and H are engaged by wire strippers, combs or discharge fingers 43 which project into the brushes and receive the stamping 40 between them, as it emerges from between the brushes ill and l I, and direct it into the chute 42.

It will be understood that the agitator and splasher shaft I1 is driven at a relatively high speed, which speed is so regulated as to cause the fingers "b to throw up onto the lower brush the proper amount of cement required to produce the desired coating on the work 40. By proper settings of the valves 22 and 23 to control the level of the liquid within the reservoir II the quantity of cement projected by the fingers l'lb onto the brush ii will be controlled thus governing the thickness of the coating applied to the work.

I claim:

1. In a coating machine, a pair of rotary brushes between which thework to be coated is fed, a reservoir for containing coating liquid, said brushes being out of contact with the liquid in the reservoir, and rotary means for projecting liquid from the reservoir onto a brush.

2. In a coating machine, a pair of rotary brushes between which the work to be coated is fed, a reservoir for containing coating liquid, said brushes being out of contact with the liquid in the reservoir, and rotary means having projecting elements dipping into the liquid and adapted to throw off particles thereof onto a brush.

3. In a coating machine, a pair of rotary brushes between which-the work to be coated is fed, a reservoir for containing coating liquid, said brushes being out of contact with the liquid in the reservoir, and rotary means having projecting elements dipping into the liquid and adapted to throw oi! particles thereof onto a brush, and means for varying the level of liquid in the reservo r. a

4. In a coating machine, a pair of revolving applicator rolls between which the'work to be coated is fed, a reservoir for containing coating liquid, said rolls being out of contact with the liquid in the reservoir, a rotatable agitator having projecting elements successively dipping into the liquid and adapted to throw oil particles thereof onto one of said rolls, and means for rotatling the agitator at a greater speed than said ro s.

5. In a coating machine, a rotary brush, means below the brush for containing coating liquid to be applied by the brush, and means to throw the liquid up onto the brush.

6. A coating machine comprising a pair of rotary cylindrical brushes one above and in contact with the other, a coating liquid receptacle below the brushes, and a rotary liquid supplying member having projections arranged to dip into the liquid and throw it up onto the lower brush.

7. A machine as described in claim 6 having means to regulate the level of the liquid in the receptacle.

8. A coating machine comprising a pair of parallel cylindrical brushes rotating in contact with each other so as to feed thin articles between them, means to apply a coating liquid to one of the brushes, and a plurality of pairs of vertically spaced discharge fingers projecting into the space between the brushes from the side towards which the brushes are adapted to feed articles.

9. A coating machine comprising a pair of parallel cylindrical brushes arranged to rotate in contact with each other, means to apply coating material to one of the brushes, and stationary stripping means projecting into the brushes, said means comprising vertically spaced fingers between which work coated by the machine is discharged.

EUGENE C. ZABLOCKI.

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