US2365775A - Adhesive-applying apparatus - Google Patents

Description

Dec. 26, 1944. w, PUNTE 2,365,775

ADHESIVE APPLYING APPARATUS Filed March 8, 1944 I 2 Sheets-Sheet 1 Z'mnentor WilliamF. Punce.

(Ittornegs Dec. 26,1944. I w. F. PUNTE 2,365,775

ADHESIVE APPLYING APPARATUS Filed March 8, 1944 '2 Sheets-Sheet 2 Snventor Willi am E Purfize Qttornegs Patented Dec. 26, 1944 ADHESIVE-APPLYING APPARATUS William F. Punte. Passaic, N. .I.. assignor to Continental Can Company. Inc.. New York, N. E, a corporation of New York Application March 8, 1944, Serial No. 525,613

Claims. (CI. 9149) r ed claims, and the several views illustrated in the The invention relates generally to the art-of manufacturing p per containers and primarily seeks to provide a novel apparatus adapted for simultaneously applying like or different adhesives to the internal and extema1 wall portions at the ends of cylindriform paper containers for bonding and sealing end closures thereon.

In the manufacture of paper containers the ends thereof are closed and sealed by paper or metallic end closures. It is common practice to .accompanying drawings.

Figure 1 is a front elevation illustrating an apparatus embodying the invention.

Figure 2 is a plan view illustrating the apparatus shown in Figure 1.

form an adhesive union between the container bodies and the end closures, and very often the adhesive is applied to the container bodies at the inner and outer wall portions thereof atthe ends. Very often the adhesive applied to the inner wall portions is selected because of its sealing qualities, and the adhesive applied to the outer wall portions is selected for its bonding qualities. It is a purpose of the present invention to provide a novel adhesive applying apparatus capable of simultaneously applying to the inner and outer container body end wall portions diiferent adhesives selected respectively for their sealing and bonding qualities.

- In its more detailed nature the invention resides in providing an applicator roll receiving adhesive from one reservoir, a second applicator roll receiving adhesive from a second reservoir, a pair of supporting rolls for supporting a cylin driform container body in position for placing an end thereof between said rolls so that one engages inside and the other outside the same, and means for rotating the container body.

An object of the invention is to provide an apparatus of the character stated in which the supporting'rolls are freely rotatable and the container body rotating means comprises a driving roll engaging the body and mounted on the same shaft with the applicator roll which engages the- With the above and other objects in view that.

will hereinafter appear, the nature of the invention will be more clearly understood by reference to the following detailed description, the append Figure 3 is a central vertical cross sectional view.

Figures-i is a fragmentary plan view illustrating the mounting of thedoctor blade which 00- operates with the lower adhesive applicator roll.

Figure 5 is a fragmentary plan view illustrating a portion of the upper adhesive reservoir and the manner in which the upper adhesive applicator roll may be removed from its mounting.

In the example of embodiment of the invention herein disclosed, the apparatus is formed to include a frame I to which an adhesiv reservoir 8 is secured as at I. See Figures land 3. The reservoir may have a water jacketing 8 through which warm water may be circulated through an inlet duct 9 and outlet duct to.

Two shafts II are mounted in bearings l2, said bearings being provided on the frame ii and on the reservoir 6, and said shafts serve to freely rotatably support a pair of container body supporting roll it. It will be observed by reference to Figures 1, 2 and 3 of the drawings that the vcylimiriform paper container body M which is to 'have adhesive applied to the inner and outer wall portions thereof adjacent its end can be supported upon and between said rolls l3. The rolls H are provided with flanges it which serve as abutments for a container body mounted on the "roller and prevent endwise movement thereof.

The reservoir 8 is provided with an extension l8 shaped in the manner clearly illustrated in Figures 1 and 3 to allow a container body to be readily mounted thereover. An applicator roll I1 is mounted within the reservoir extension l6 and'is adapted to pick up adhesive from the interior of the reservoir and apply it to the internal wall portion of the container body at the end thereof in the manner clearly illustrated in Figure 3. The roll I! is mounted on a shaft I8 which is rotatable in a frame bearing l9, and it will be observed that the roll is tapered at its end, so as to facilitate mounting of a container body thereover, andalso is equipped with a flange 20 which serves as an end abutment for the container body and also to apply adhesive to the end extremity of said body. It will be apparent by reference to Figures 2 and 3 of the drawings that the roll flange 2n cooperates with t e 0 1 flanges 15 on the supporting rolls i3 in holding the container bodies It against an endwise movement while adhesive is being applied thereto. The adhesive in the reservoir 3 is designated 2 I.

An arm 22 is pivotedly mounted as at 23 on the frame I in the manner clearly illustrated in Figures 1 and 2, and this arm is equipped with a bearing 2| in which a drive shaft 25 is rotatably mounted. A driver roll 26 is mounted on the shaft 25 in position for engaging container bodies mounted for having adhesive applied thereon, and said roll contacts the container bodies centrally over the supporting rolls I3 in the manner clearly illustrated in Figure 1. It will be obvious that the contact of the rotating roll 28 with the outer walls of the container body I 4 will cause them to rotate on the freely rotatably-mounted supporting rolls l3.

A second adhesive reservoir 21 is provided, and this reservoir is secured to the arm 22 by means'of a U-shaped bracket 23. The reservoir 21 is provided with a full bearing 29 for rotatably receiving the drive shaft 25, and an applicator roll 30 is secured on said shaft in the space intervening the bearing 29 and a half bearing member 3| also carried by the reservoir 21. The roll 30 is equipped with a hub portion 32 which has rotative bearing in the half bearing 3|, and it will be observed by reference to Figures 1 and 2 of the drawings that the periphery of the roll 30 extends into the reservoir 21 through the space intervening the full bearing 29 and the half bearing 3| so as to pick up adhesive therein and apply it in the manner illustrated in Figure 3 to the external surface of the container body at the end thereof. It will be observed by reference to Figure 1 that by swinging the arm 22 upwardly, the reservoir 21, the shaft 25, the driver roll 28 and also the applicator roll 30 will be raised, and suitable space will be provided for facilitating the mounting or removal of a container body H.

As in the case of the lower reservoir 3, the upper reservoir 21 is provided with water jacketing 33, and warm water may be circulated through the jacketing by provision of an inlet duct 34 which may be connected by a flexible duct with the outlet duct IQ of the lower reservoir, and an outlet duct 35 which may lead back to the warm water source (not'shown) See Figure 1.

A doctor blade 38 is adjustably mounted on the lower reservoir in the manner clearly illustrated in Figures 1 and 4, and said blade is shaped and positioned to cooperate with the applicator roll H in determining the amount of adhesive to be carried into contact with the internal surface of container body H by the periphery of said roll and the container body end engaging fiange face. A doctor blade 31 is similarlymounted on the upper reservoir 21 and serves a like purpose of controlling the amount of adhesive dragged out of the side opening in the reservoir by the applicator roll '30 and applied thereby to the external surface of the container body Hi.

In Figure of the drawings the applicator roll receiving space intervening the full bearing 23 and the half bearing 3| and through which adhesive is dragged by the applicator roll 30 is indicated at 38, and it will be observed that by reason of the provision of said opening and the half bearing 3|, the applicator roll 30 may be readily removed by withdrawing the drive shaft 25 in the manner indicated by the arrow in Figure 5, and then withdrawing said roll latterly out of the space 33 in the manner indicated by the arrow at the right in said Figure 5.-

Rotation can be applied to the drive shaft 25 alone, if desired, and by any approved means (not shown), or the shafts 25 and I3 may be coupled to rotate in unison by a spur gear couple such as is shown at 33 in Figure 3.

In the practical operation of the apparatus, the lower and upper reservoirs 3 and 21 are supplied with suitable adhesive which may be the same in t p or adhesivesof different types may be provided in the respective reservoirs. For example, the adhesive in the reservoir 3, to be applied to the inner surface of the container body and the end extremity thereof, may be selected for its sealing qualities, whereas the adhesive in the upper reservoir 21, to be applied to the external surface of the container body at the end thereof, may be selected for its bonding qualities. By lifting the arm 22 the applicator rolls 3!! and I! may be separated and the driver roll 23 lifted in a manner for facilitating the mounting of a container body It on and between the supporting rolls ,|3 with the open inner end thereof extending over the applicator roll l1 and the reservoir projection I6. By reason of the provision of the taper on the applicator roll II, the mounting of container bodies thereover is facilitated.

After the container body has been suitably mounted on the supporting rolls l3, the arm 22 is lowered so as to lower the applicator roll 3|! and driver roll 28 onto the external surface of the container body. With the parts in this position rotation is imparted to the container body I4 and to the applicator rolls l1 and 33 and the applicator rolls l1 and 30 will apply the adhesive to the inner and outer wall portion of the container body at the end thereof, the lower roll l1 applying adhesive from the reservoir I to the interior of the container body at the end extremity thereof, and the roll 30 applying adhesive from the upper reservoir 21 on the external surface of said container body at the end thereof.

It is to be understood that the structural details and the arrangement of parts herein disclosed may be variously modified without departing from the spirit and scope of the invention as defined in the appending claims.

Iclaim:

1. In apparatus of the character described, a first adhesive reservoir, a second adhesive reservoir, a first applicator roll supplied with a surface coating of adhesive from said first reservoir, a second applicator roll supplied with a surface coating of adhesive from said second reservoir, a pair of supporting rolls disposed in parallel spaced relation to support thereon and therebetween a container body in position for having adhesive applied to internal and external wall portions at one end thereof by engagement between said rolls with the first roll engaging internally of the container body and the second roll engaging externally of said body, and means for rotating said container body.

2. In apparatus of the character described, a first adhesive reservoir, a second adhesive reservoir, a first applicator roll supplied with a surface coating of adhesive from said first reservoir, a second applicator roll supplied with a surface coating of adhesive from said second reservoir, a pair of freely rotatable supporting rolls disposed in parallel spaced relation to support thereon and therebetween a container body in position for having adhesive applied to internal and external wall portions at one end thereof by enassume Basement between said rolls with the first roll engaging internally of the container body and the second roll engaging externally of said body, and a driving roll engagingthe container body contrally oversaid supporting rolls for imparting rotation to the container body.

3. In apparatus of the character described, a first adhesive reservoir, a second adhesive reservoir, a first applicator roll supplied with a surface coating of adhesive from said first reservoir, a second applicator roll supplied with a surface coating of adhesive from said second reservoir, a pair of supporting rolls disposed in parallel spaced relation to support thereon and therebetween a container body in position for having adhesive applied to internal and external wall portions at one end thereof by engagement between said rolls with the first roll engaging internally of the container body and the second roll engaging exter nally of said body, and means for rotating said container body, said first roll having a tapered end facilitating the mounting of a container body thereover and having a flange forming an end abutment for the end of a container body being coated and also effective to apply adhesive from' spaced relation to support thereon and therebetween a container'body in position for having adhesive applied to internal and external wall portions at one end thereof by engagement between said rolls with the first roll engaging internally of the container body and the second roll engaging externally of said body, means for rotating said eontainer body, means stationarily mounting said first reservoir, said supporting rolls and said first applicator roll, and means for supporting said second reservoir, said second applicator roll and said body rotating meansfor movement in a direction for spacing the applicator rolls and freeing the container body so as to facilitate removal of the adhesive coated container body.

5. In apparatus of the character described, a

, first adhesive reservoir, a second adhesive reservoir, a first applicator roll supplied with a surface coating of adhesive from said first reservoir,

a second applicator roll supplied with a surface coating of adhesive from said second reservoir, a pair of supporting rolls disposed in parallel spaced relation to support thereon and therebetween a container body in position for having adhesive applied to internal and external wall portions at one end thereof by engagement between said rolls with the first roll engaging internally of the container body and the second moval ofthe adhesive coated container body 6. In apparatus of the character described, a first adhesive reservoir, 9. second adhesive reservoir, a first applicator roll supplied with a surface coating of adhesive from said first reservoir, a second applicator roll supplied with a surface coating of adhesive from said second reservoir, a pair of freely rotatable supporting rolls disposed in parallel spaced relation to support thereon and therebetween a container body in position for having adhesive applied to internal and extemai wall portions at one end thereof by engagement between said rolls with the first roll engaging internally of the container body and the second roll engaging externally of said body, a driving roll engaging the container body centrally over said supporting rolls for imparting rotation to the container body, and a driver shaft supporting the driving roll and also the second applicator roll.

7; In apparatus of the character described, a

first adhesive reservoir, a second adhesive reservoir, a first applicator roll supplied with a surface coating of adhesive from said first reservoir, a second applicator roll supplied with a surface coating of adhesive from said second reservoir,

a pair of freely rotatable supporting rolls disposed in parallel spaced relation to support thereon and therebetween a container body in position for having adhesive applied to internal and external wall portions at one end thereof by engagement between said rolls with the first roll engaging internally of the container body and the second roll engaging externally of said body, means statlonarily mounting said first reservoir, said supporting rolls and said first applicator run, a driving roll engaging the container body centrally over said supporting rolls for imparting rotation to the container body, a driver shaft supporting the driving roll and also the second applicator roll, and a swingably mounted arm supporting said second reservoir, said second applicator roll, and said driving roll for movement in a. direction for spacing the applicator rolls so as to facilitate removal of the adhesive coated container body.

8. In apparatus of the character described, a

first adhesive reservoir, a second adhesive reservoir, a first applicator roll supplied with a surface coating of adhesive from said first reservoir, a second applicator roll supplied with a surface coating of adhesive from said second reservoir, a pair of freely rotatable supporting rolls disposed in parallel spaced relation to support thereon and therebetween a container body in position for having adhesive applied to internal and external wall portions at one end thereof by engagement between said rolls with the first roll engaging internally of the container body and the second roll engaging externally of said body, a driving roll engaging the container body centrally over said supporting rolls for imparting rotation to the container body, a driver shaft supplicator roll, and means coupling the driver shaft and the first applicator roll for rotation in unison.

9. In apparatus of the character described, a first adhesive reservoir, a second adhesive reservoir, a first applicator roll supplied with a surface coating of adhesive from said first reservoir, a second applicator roll supplied with a surface coating of adhesive from said second reservoir, a pair of freely rotatable supporting rolls disposed in parallel spaced relation to support there- -on and therebetween a container body in position for having adhesive applied to internal and external wall portions at one end thereof by eneasement between said rolls with the first roll engaging internally oi the container body and the second roll engaging externally of said body, a driving roll engaging the container body centrally over said supporting rolls for imparting rotation to the container body, and a driver shaft supporting the driving roll and also the second applicator roll, said second reservoir having a bearing for said driver shaft and an open half bearing and a space intervening said bearings and communicating with the interior of said second reservoir, and said second applicator roll having a hub portion mounted in said half bearing, said second applicator being withdrawable laterally out of said space and said hall. bearing upon withdrawal of the driver shaft axially therethroush.

10. In apparatus of the character described, a first adhesive reservoir, a second adhesive reservoir, a first applicator roll supplied with a surface coating of adhesive from said first reservoir, a second applicator roll supplied with a surface coating of adhesive from said second reservoir, a pair of freely rotatable supporting rolls disposed in parallel spaced relation to support thereon and therebetween a container body in position for having adhesive applied to internal and external wall portions at one end thereof by engagement between said rolls with the first roll engaging internally of the container body and the second roll engaging externally of said body, means stationarily mounting said first reservoir, said supporting mils and said first applicator roll, a driving roll engaging the container body centrally over said supporting rolls for imparting rotation to the container body, a driver shaft supporting the driving roll and also the second applicator roll, and a swingably mounted arm supporting said second reservoir, said second applicator roll, and said driving roll for movement in a direction for spacing the applicator rolls so as to facilitate removal of the adhesive coated container body, said second reservoir having a bearing for said driver shaft and an open half bearing and a space intervening said bearings and communicating with the interior of said second reservoir, and said second applicator roll having a hub portion mounted in said half bearing, said second applicator being withdrawable laterally out of said space and said half bearing upon withdrawal of the driver shaft axially therethrough.

WILLIAM F. PUNTE.

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