US2324686A - Adhesive applier - Google Patents

Description

July 20, 1943.

c. B. FANTONE- ADHESIVE APPLIEB 2 Sheets-Sheet 1 Filed Aug. 25, 1941 INVENTOR. Charles B. Fan/tone A JQQJHK.

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Patented July 20, 1943 ADHESIVE APPLIER Charles B. Fantone, Lyndhurst, N, J assignor to Syncro Machine Company, Rahway, N. J., a corporation of New Jersey Application August 23, 1941, Serial No. 408,044

6 Claims.

This invention is concerned with the device for applying adhesive to strands such as for example copper wire in preparation for: the application thereto of a wound wrapping of insulating material.

An object of this invention is the provision of a simple device for applying adhesives vor other coating materials to strands of any typaas for example copper wire. n

A further object of the invention is the provision of a, device for efliciently applying coating materials to wires of various cross-sections, as for instance wires of circular, rectangular and other cross-sections.

Another obj ect of the invention is the provision of an adhesive applier of such construction as will minimize the evaporation of the liquid portion of the adhesive, will prevent the leakage or loss thereof, and will insurethe application of the adhesive or other coating material tothe strand in a coating of the desired thickness.

Animportant object of this invention is the provision of an adhesive or other coating applier of a construction and operation such as will insure the application of the'coating'substance over the entire surface of the strand. 7

These .andother objects as will appear from the following disclosure are successfully secured by means of the embodiment herein described in connection with the attached drawings.

vThis invention resides substantiallyin the combination, construction, arrangement and relative location of parts as will be described indetail below.

In the accompanying drawings, Figure 1 is a vertical, central, cross-sectional view partly in elevation of a device in accordance with this invention, the cross-sectionplane being on the line l--l of Figure 2; and

Figure 2 is a cross-sectional line 2-2 of Figure 1.. p l p In the application of coating materials towires, as for example adhesives, difiiculty is often enview taken on the Modern adhesives used for the purpose of cementing insulating Wraps to wire frequently employ highlyvolatile solvents, making it diflicult to prevent them from becoming too viscous by reason of undueevaporation of the solvent. An object of this invention is to minimize this tendency.

In devices of this type wipers of various forms are commonly employed through which the wire passes after it is coated. These wipers wear fawayrapidly so that they quickly tend to leak by reason of the escape of excessadhesive through a the. passage in which the wire is traveling. An

countered in securing coverage of the entire surface of the wire, particularly in the case of wires of rectangular cross-section, and especially inview of the fact that the wires travel through the coating device at high speeds. If the coating material is applied to one side of the wire. it does not have an. opportunity to flowLover the lower surfaces thereof before it passes through the wire device. It is an object of. this invention to apply the coating material to all sides of the wire simultaneously to insure uniform and thorough cbverage thereof.

mg 4. ing hand bolt 5 and a sub-collar 6 is attached to object of this invention is to minimize this difficulty,

Other and more detailed objects of this invention will appear from the following description and the embodiment serving to illustrate the principles of the invention. As shown in the drawings the adhesiveapplying device is movabli supported on a rod l and a bracket 2 secured to the rod. The rod l is attached to any suitable js upport, as for example a convenient part of the wire insulating machine. The rod. i is provided with a key 3 which forms a sliding fit with key- I ways on the. depending. lugs of the adhesive hous- One of these lugs is provided with a lockthe rod l by means of a pin 1. When the device is in the position shownin Figure 1 against the collar 6 it is in working position. When for any reason it is desired to move it out of Working poSi-.

.tion the hand bolt 5 is loosened and the housing slid to the left against the nut on the end of the rod I. Attached to the housing by means of a re- ;inforcing angle member 9 is a base or plate 8 which slideson the top of the bracket 2.

-Mounted on the base 8 isa motor 10 which is provided with a speed reducing device II. The

,power output shaft of. the speed reducing device is coupled with a shaft l3 through the gear train l2. The shaft I3 is rotatably mounted in a bearing I 4 in the housing 4. Secured on the projecting end of the shaft l3 are a pair of wheels or flingers l5 and I8. The wheel l5 consists ,of, a disc body portion having a continuous inclined peripheral flange I6 integral with the disc portion within its peripheral edge. This construction forms a peripheral trough ofgenerally V-shaped cross-section which is periodically interrupted by axially and radially extending vanes IT. The flinger l8 consists simply of a. hub having a plurality of radial vanes l9 lying between a pair of discs, as clearly shown in Figure 1.

Supported below the ilinger I8 is a V-shaped trough 2!) which extends lengthwise of the housing as shown in Figure 2. Extending similarly but at a higher level is a V-shaped trough 2| which is provided with a series of opening 22 at the lowermost point of the trough, which openings are linearly arranged so as to be above the path of travel of the Wire being coated. A scraping device 23 is secured in the cover 24 of the housing so as to be very close to or just contact the periphery of the fiinger l which rotates in a counter-clockwise direction when the machine is in operation (see Figure 2).

The cover 24 is hingedly mounted as indicated at 25 and is normally locked in closed position by the locking device 25.

The left hand side of the casing and cover (see Figure 2) are respectively provided with L-shaped extensions 2'! and 28 which form a rectangular housing when the cover is closed, in which are mounted the rubber blocks 29. The housing for the rubber blocks and the adhesive housing have aligned openings so that the wire W may pass between the blocks into the housing 4. The other side of the housing, that is the side from which the wire W exits, is provided with extensions 30 and 3| which likewise form a rectangular housing for the rubber blocks 32. The housing for these rubber blocks and the adhesive housing have aligned openings through which the wire may pass. At this point it may be noted that the rubber blocks 29 and 32 may each, if desired, be in a single piece and have apertures through the center of the proper size and configuration so that the wire will form a sliding fit as it passes therethrough and create the desired pressure on the wire. With respect to the blocks 29 they may be proportioned with regard to the size of their housing so that when the cover is closed the desired squeezing effect on the wire will result. The blocks 32 are providcd however with an additional device for varying the compressive force thereon. This pressure device consists of a pair of suitably shaped straps 33 and 34 which are hingedly mounted on the adhesive housing 4 as indicated in Figure 1. The lower strap 34 has a pivoted rod 36 mounted thereon which passes through an aperture or slit in the end of the upper strap 33 (see Figure 1). The upper end of the rod 36. is threaded and provided with an adjusting thumb nut 31 which acts on a spring 38 so that the pressure on the blocks 32 may be varied to vary their squeezing effect on the wire W.

The operation of this device is fairly clear from I the description previously given but additional explanation will serve to emphasize its efficiency for the intended purpose. The main adhesive body in the housing or container 4 need not be very large. Its normal level may be at about that indicated by the dotted line in Figure 1. With the motor it running the flinger wheels l5 and I8 revolve in a counter-clockwise direction. The wheel it: picks up the adhesive from the main body and throws it against the lower surface of the cover of the housing. This cover is suitably shaped and is preferably provided, as indicated at 24, with a longitudinal lip from which the adhesive may drip onto the trough 2|. The scraper 23 acts to prevent any excess of adhesive from being thrown upwardly. The adhesive drips down through the apertures 22 onto the wire W which is traveling in a straight line in the direction of its length, as will be apparent. After the machine is in operation excess adhesive will collect in the trough 29 and will be picked up by the wheel l8 and flung from it against the lower side of the wire W, in case adhesive in the trough 20 should escape over its left hand edge (see Figure 1) and fall back into the main adhesive body. With this arrangement a thorough covering of the wire by the adhesive is obtained. The excess adhesive is wiped off the wire by the blocks 32 and flows back into the main body of adhesive. By adjusting the pressure of the blocks 32 on the wire by means of the nut 3'! the desired coating thickness is secured, while at the same time leakage of adhesive from the exit ends of th blocks is minimized.

The cover 24 substantially seals the adhesive container, minimizing loss of solvent by evaporation. The drain plug 4 provides drainage of the container for cleaning and other purposes.

From the above description it will be apparent to those skilled in the art that there are other ways of constructingv devices embodying the principles of this invention, and I do not, therefore, desire to be strictly limited to the disclosure as given for purposes of illustration. I prefer, therefore, to be limited only by the true scope of the claims granted me.

What is claimed is:

1. In a device of the type described the combination including a container for holding a body of adhesive, resilient apertured members mounted on the container through which a wire tov be coated enters and leaves the container along a path above the adhesive body, a rotatable wheel dipping in the adhesive body for throwing adhesive against the undersurface of the top of the container, distributing means on which the adhesive falls for delivering adhesive to the top surface of the wire, a. distributing device rotatably mounted-under the, path of the wire; and an adhesive trough into which said distributor dips for projecting adhesive against the undersurface of thewire.

2; In a coating device of the type described the combination comprising a container for forming a body of coating material, apertured resilient members mounted on the container by which the wire entersand leaves the chamber along a path above the coating body, a pair of rotatable coating distributing wheels mounted in said container, means for rotating said wheels, means for receiving coating material from one of said wheels and distributing it directly onto the top of a wire passing through the container, and means for supplying coating material to the other of said finger wheels for distributing the coating directly to the lower surface of the wire.

3. In a coating device of the type described the combination comprising a coating container having a liquid body receptacle, a pair of resilient sealing members mounted on said container through which the wire enters and leaves the container along a line above said receptable, means within the'container for lifting liquid from said receptacle and applying it in drop form directly to thesurface of the wire from opposite directions,'and means for adjusting the pressure of the exit sealing member on the wire to control the thickness of the coating applied to the wire.

4.111 a strand coating machine the combination including a housing adapted to hold a body of liquid coating material, means forming part of said housing for guiding a strand therethrough along a path above the liquid bodyy-a rotatable member dipping in the liquid body and adapted to fling liquid onto the ceiling of said housing, means for distributing liquid from said ceiling onto the upper surface of a strand passing through the housing, and means for flinging liquid directly onto the undersurface of the strand.

5. In a strand coating machine the combination including a housing adapted to hold a body of liquid coating material, means forming part of said housing for guiding a strand therethrough along a path above the liquid body, a rotatable member dipping in the liquid body and adapted to fling liquid onto the ceiling of said housing, a ridge formed on said housing and extending parallel to the strand path from which liquid may drop, and means for flinging liquid directly onto the undersurface of the strand.

6. In a strand coating machine the combination including a housing adapted to hold a body of liquid coating material, means forming part of said housing for guiding a strand therethrough along a path above the liquid body, a rotatable member dipping in the liquid body and adapted to fling liquid onto the ceiling of said housing, means positioned below the ceiling of the housing and above the path of the Wire for receiving liquid from the ceiling of the housing and distributing it onto the upper surface of the wire, means positioned under the wire path for collecting liquid falling thereinto into a body, and means dipping in that liquid body for flinging liquid onto the undersurface of the Wire.

CHARLES B. FANTONE.

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