US2098857A - Adhesive applying mechanism - Google Patents

Description

Nov. 9, 1937. H. s. BUCKINGHAM 2,098,857

ADHESIVE APPLYING MECHANISM.

Filed NOV. 4, 1956- 2 Sheets-Sheet l Nov. 9, 1937. A H, S BUQKINGHAM l 2,098,857

ADHES IVE APPLYING MEGHANI SM Filed Nov. 4, 1936 2 Sheets-Sheet 2 Patented Nov. 9, 1937 UNVriazDk STATES ADHESIVE APPLYING MECHANISVM Harold Scott Buckingham, Bala?Cynfvvyd,l Pa., as-

signer to Silver Seal Dairy Products Qompany, Philadelphia, Pa., a corporation of Delaware Application November 4, 1936,` serial No. 10.9.1.9?.

8 Claims.

This invention relates to new and useful improvements in adhesive applying devices and more particularly to devices for applying adhesive to the inner wall surface of a package or sleeve so that a bottom, top or like section may be secured` therein.

To this end, the invention consists in the novel f construction and arrangement of parts hereinafter set forth and shown in the accompanying drawings, in which Y Fig. l-is a fragmentary View partially in section showing the details of construction of an adhesive applying device made in accordance with this invention.

Fig. 2 is a viewv in elevation taken along line 2-2, Fig. 1. f

Fig. ElV is a view in perspective illustrating the device and accompanying mechanism for operating the same; and

Fig; 4 is'a fragmentary View in section of one l form of package or containerin conjunction with which the presentinvention may'be employed.

Referring new to the drawings', and particularly Fig; 1A thereof, the device contemplated by the present invention comprises a hollow shaft or tube I which is preferably xedly mounted parallel to thesurface of a base or other supporting structure 2 by means of a standard 3. The outeror lefthandend of the Yhollow tube or shaft. IV is connected bymeans of apipev or other suitable means 4 and valves 5 and 6 Vtov a container 1 which is adapted to be lled with a suitable adhesive substance such as glue, paste or the like. 'I'he valve is intended to function as a Vprimary shut ofi valve which may be manually operated at will through its handle 8, Whereas the valve 5 located between the valve 6 and the' hollow tube or shaft Iris operative in a manner set forth hereinafter toV intermittently control flow of the adhesive material from the container 'I inwardly of the hollowrshaft or tube I when the shut'oif valve 6 is open during periods of normal operation and use of the device. f

Forming an integral part of the hollow tube or shaft I at the opposite or right hand end thereof is a solid disk-like'portion 9 having a diameter approximately twice that of said hollow tube or shaft portion I and a series of outlets or ports I0 are formed inthe shaft I inwardly adjacent said disk-like portion 9 for the purpose of permitting flowcf the adhesive'material outwardly from the interior ofsaid hollow shaft or tube I.

VA head Itconstituting the adhesive applying.`

member is slidably mounted upon the hollow tube orshaftl for reciprocal movement longitudinally thereof' and comprises a main body memberv I2 and an end or face plateV i3. As shown, a recessv or chamber I4 of substantial depth isV .formed inwardly from the right hand end thereof co.- axially withY respect to the hollow tube ,or shaft I and the diameter of-said recess I4iis substantially equal to'that of the solid'disk-like end portion 9" cf the hollow tube or shaft I so that the latter will fit snugly within the recess I ilior relativeV movement axially thereof after the manner of the movementV or operation of 'a piston `within a cyl-1 inder.

formed circumferentially of the bodyportion I2 and incline :outwardly from adjacent the inner end oi'th'e recess I4. to an annular grooveor channel I6 in the outer face `ofthe body portion" I2 substantially midway Vbetween the recess. I4 andthe periphery of said body portion I2, and

from the vannular groove or channel I6 and provide` connecting passages between the latter anddischarge portsfcr outletsY I8 which open into the peripheral face of the .body member l2.v

The end or faceplate I3 .is secured to the bodymember I2 by any suitable means such as Vscrews I9 and the surface of said plate I3 which contacts the body memberV I2 is provided with a series of` ly spaced radial arms 24-haVingvislots 25 in theV extremities thereof which are engaged by pins'- or-4 studs 2 61projecting laterally from opposite sides of the body portion'IZ adjacent the inner end thereof. The shaft 221s-rocked in alternate directions as vindicated by the arrow in Fig. 3V of therdrawings by means ofa crank arm v2;'I the' radial extremity of which is connected to a rocker arm 28 by means of a link or other similar con'- nectingy element 29. l

The* rocker armv28 is pivotally mountedV adjacentits midpoint at the upper end ofstandardll:

by means of a shaftaspindle or the like `3I` and actuated by Vmeans of a cam V32 whichV is iixed upon ashaft 33 drivenfrom a suitable 'sourceof' A plurality of communicating passages' I5 are;

a plurality of ygrooves Il extend radially outward rotary power (not shown) and peripherally contacted by a cam roller 34 rotatably mounted at thelower extremity of a depending arm or leg 35 at one end of said rocker arm 28. Thus it will.

be observed that during Veach revolution of the cam 32 the head I I will be actuated through one complete reciprocatory cycle from the position' shown in solid lines in Fig. 1 to the position shown.

in dot and dash lines and back again.

In addition to reciprocating or actuating the head II with respect to or upon the hollow tube or shaft -I and its solid disk-like portion 9, the rocker arm 28 also functions to operate the control valve 5 through a crank 36 having a sliding connection with a bar `3'I suitably secured or mounted upon the adjacent face of the rocker arm 28 so that said valve 5 will be open to permit the free flow of adhesive fromV the container I to the hollow tube or shaft I during the advance stroke or movement of the head II tothe right` withV respect to Fig. 1 of the drawings and into the adjacent endof a package, container or like article 38 to which adhesive is to be applied and close the valve 5 to shut off the flow of adhesive to the hollow tube or shaft I during return or reverse movement of the head I I to the left with respect to Fig. 1 of the drawings as it is withldrawn from the adjacent end of the package or container 38.

The containers, packages or other articles to receive adhesive from the head I I are designated generally by reference numeral 38 and are successively positioned'in coaxially spaced relation with respect to the hollow tube kor shaft and said head I I to receive the latter as actuated intothe position shown in dot and dashlines during the advance or working stroke thereof. Assuming a container, package or the like 38 to be positioned in the relation shown in dot and dash lines of Fig. 1 of the drawings with respect to the head I I, the latter is actuated to the right in the manner previously described inwardly of the adjacent end of said container or package 38. The recess I 4 and associated communicating passages are substantially filled with adhesive material fed through the hollow tube or shaft I through the outlet openings or ports I0 therein and as said head II travels to the right with respect to said and deposited onto the adjacent inner wall surface of the container or package 38.

As return or withdrawal of the head commences, the valve 5 controlling the now of adhesive from the container 1 to the hollow tube or shaft I is closed thus creating a partial Vacuum .at the tube side of the Valve 5 and enabling the disk-like head 9 to exert a suction force or pull on the adhesive, remaining in the recess I 4 and its communicating passages tending to withdraw said adhesive from the neighborhood or area of the discharge ports and prevent further discharge or dripping of the adhesive from the head II when withdrawn from within the article 38.

It will be obvious that the adhesive distributing head II 'may beof any desired configuration or shape other than that shown and described herein. So too, while specific details of construction o'f the present invention have been described and illustrated; it is not intended lthat said invention reciprocating distributing head having a chamb er therein -and discharge ports communicating therewith, a relatively fixed'feeding tube extending through said head for supplying adhesive tok the chamber thereof, and an enlarged piston-like extremity on said tube slidably occupying said chamber, said piston-like extremity being operative in one stroke of each cycle oi reciprocation of said head to exert pressure on the adhesive in the chamber and discharge the same outwardly through said dischargey ports and in the other stroke to create suction in said chamber tending to withdraw adhesive from the neighborhood or area of' said discharge ports. n

2. An adhesive applying device comprising a reciprocating` distributing head having a chamber therein and discharge ports in the peripheral surface of said head communicating therewith, and a relativelyxed feeding tube for supplying adhesive to the chamber including an enlarged piston-like extremity slidably occupying said chamber and operative in one stroke of each cycle of reciprocationV of said head to exert pressure on the adhesive in the chamber Vand discharge the same outwardly through said discharge portsv and same outwardly through said discharge ports andV in the other stroke to create suction in the chamber tending to withdraw adhesive from the neighborhood or area of the discharge ports.

4. An adhesive applying device comprising a.

reciprocable distributing'head having a chamber therein and discharge ports communicating therewith, a relatively fixed feeding tube for supplying adhesive to said chamber, means for reciprocating the head, and piston-like means forming a part of said feeding tube slidably occupying the chamber in said head and operative k in one stroke of each cycle of reciprocation of the head to exert pressure on" the adhesive in said chamber and discharge the same outwardly through said discharge ports and in the other stroke to create suction in the chamber tending to withdraw adhesive from the neighborhood or area of the discharge ports.

5. An adhesive` applying device comprising a reciprocating distributing head havingpa chamber therein and discharge ports communicating therewith, a relatively fixed feeding tube for supplying adhesive to the chamber including an enlarged piston-like extremity slidably occupying said chamber and operative in one stroke of each cycle of reciprocation of said head to exert pressure on the adhesive in the chamber and discharge the same outwardly through said discharge ports and in the other stroke to create suction in said chamber tending to withdraw adhesive from the neighborhood or area of said discharge ports, a valve controlling the feed of adhesive through said tube, and means operative in timed relation with reciprocation of the head to open said valve during the first mentioned stroke of each cycle of said head and close the valve during the other stroke thereof.

6. An adhesive applying device comprising a reciprocable distributing head having a chamber therein and discharge ports communicating therewith, a relatively fixed feeding tube for sup- Y plying adhesive to said chamber, means for reciprocating the head, relatively fixed piston-like means slidably occupying the chamber in said head and operative in one stroke of each cycle of reciprocation of the head to exert pressure on the adhesive in said chamber and discharge the same outwardly through said discharge ports and in the other stroke to create suction in the chamber tending to Withdraw adhesive from the neighboryfhood or area of the discharge ports, a valve controlling the feed of adhesive to said chamber, and means actuated by the first mentioned means for opening said valve during the rst mentioned stroke of each cycle of said head and close the valve during said other stroke thereof.

7. An adhesive applying device comprising a distributing head having a chamber therein and discharge ports communicating therewith, means for supplying adhesive to said chamber, pistonlike means slidably occupying said chamber, and

means operative to effect relative reciprocation of the head and said piston-like means to cause the latter to exert pressure on the adhesive inthe chamber and discharge the `same outwardly through said discharge ports in one stroke of each cycle of reciprocation of said head and piston means and in the other stroke thereof to create suction in said chamber to withdraw adhesive 'from the neighborhood or area of the discharge ports.

8. An adhesive applying device comprising a distributing head having a chamber therein and discharge ports communicating therewith, means for supplying adhesive to said chamber, pistonlike means slidably occupying said chamber, means operative to eiect relative reciprocation of the' head and said piston-like means to cause the latter to exert pressure on the adhesive in the chamber and discharge the same outwardly through said discharge ports inv one stroke of each 'cycle of reciprocation of said head and piston means and in the other stroke thereof to create suction in said chamber to/withdraw adhesive from the neighborhood or area of the discharge ports, a valve controlling the feed of adhesive to said chamber, and means controlled by the means for reciprocating the head and piston for opening said valve during the rst mentioned stroke and closing the valve during said other stroke.

HAROLD SCO'II BUCKINGHAM.

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