US1112812A - Gluer for tray-box machines. - Google Patents

Description

E. W. LABOMBARDB.

GLUBR FOR TRAY BOX MACHINES.

APPLICATION FILED FEB.17.1913. RENEWED JAN.31.1914.

1,1 12,812. Patented Oct. 6, 1914.

Zdz'inecsea: fnven Z 072 3. y EWZQZOIWZQTF? 24 ELIE W. LABOMBARDE, 0F NASHUA, NEW HAMPSHIRE.

GLUER FOB- TRAY-BOX MACHINES.

Specification of Letters Patent.

Patented Oct. 6, 1914..

Application filed February 17, 1913, Serial No. 748,817. Renewed January 31, 1914. Serial No. 815.833.

To all whom it may concern:

Be it known that I, ELIE IV. LABOMBARDE, a citizen of the United States, residing at Nashua, in the county of Hillsboro and State of New Hampshire, have invented certain new and useful Improvements in Gluers for TrayJiox hIachines, of which the following is a specification.

This invention relates to adhesive-applying mechanism, and refers particularly to machines for making boxes of the type com.- monly known as tray boxes, the blanks having wings and tongues which are to be glued together.

"1 he folding operation of boxes of this type is materially interfered with if the glue is applied to other than the necessary and predetermined portions of the blanks.

-I-leretof0re, it has been a common practice to apply the glue while the blanks are stationary. If the blanks are being supplied to the folding mechanism by continuously operating mechanism, such as endless belts, it has been customary to temporarily arrest the blanks and suitable pads or other devices apply glue to the selected members or portions of the blanks. This necessarily interferes with the rapidity of operation of the machine. The means which best facilitate the application of glue to the blanks has been found to consist of wheels or disks, but so far as I am aware, it has not been found practical prior to iny-present invention, to employ wheels or disks'which will apply the glue to only selected portions of the blanks;

The principal object of my present invention is to provide gluing mechanism suitable for use in connection with machines which fold tray boxes, or analogous boxes, said gluing mechanism having rotary glueapplying disks or wheels, means being provided for deflecting portions of the blanks which travel past such wheels or disks, that are not to have glue applied thereto, to a plane or path of movement that will prevent contact with the wheels or disks of those portions of the blanks which are to be left unglued. I will state here that I employ the word glue merely as a generic term for any adhesive that is suitable and preferred.

My invention consists in the improvements which I- will now proceed to describe and claim. v p

Of the accompanying drawings, forming a part of this specification, Figure 1 is a plan view of so much of the mechanism as is necessary to illustrate my present improvements. Fig. 2 is aside elevation of the same.

Similar reference characters indicate the same or similar parts in both figures, numeralsbeing employed to designate some of the parts of the mechanism, whileletters are employed in connection with those portions of the illustrated mechanism which particu-' larly form the subject-matter of my presentapplication.

The frame 20 of the machine supports a driven shaft 38, and by means of other shaft-s, not shown, and driving and supporting pulleys, also supports a pair of carrier belts 60, 61, which travel continuously in the direction of the arrows shown in the drawing; The cooperating stretches of the carrier Its 60, 61, do not grip the blanks tightly. Stop devices to aline the blanksbetween the carrier belts comprise arms 74: carried by brackets secured to a rock-shaft 75. An arm 76 of said rock-shaft is connected to a pitman 77 adapted to slide in a suitable guide bearing 78, said pitman having a roll 7 9 which is actuated by a cam 80 on shaft 38, the timing of the operation of said cam being such that the stop arms 74 Will rise and fall, keeping the position shown in Fig. 2, long enough to engage the front edge of a blank at two points on opposite sides of the central portion of'the blank which is grasped by the carrier belts, so that the blank, if askew, will be brought up, squarely against the bent ends of the stop arms, said arms then rising and permitting the blank to be advanced by the carrier belts, with the portions 0, (Z, c, of the blanks passing over glue-applying disks 81 carried by a shaft 217, the lower portions of the disks rotating in a quantity of glue in a suitable receptacle 218.

In order that the blanks will be instantly gripped by the belts 60, 61, after the stops 74 rise, I employ a pressing-roll 91, carried by an arm 92 of a rock-shaft 93 having-a toothed segment 94 meshing with a toothed segment 95 carried by the rock-shaft which carries the stop arms. As the cam causes the rock-shaft 75 to oscillate, the segment 95 of the latter will actuate the rock shaft 93 in a direction to cause the pressing roll 91 to bear upon the upper carrier belt 60 the moment that the stop arms 74 rise, so that the released blanks will be immediately gripped by the traveling belts and caused to travel past the glue disks 81.

The particular form of blank illustrated in Fig. 1 comprises the body portion a, side flaps or wings Z), corner flaps or tongues c, and end flaps or Wings aZ. lVith this particular form of blank it is necessary that glue be applied only to the flaps or wings (Z, and not to the corner tongues 0. Of course, with the construction so far described, the blanks, as they travel beyond the position shown in Fig. 1, would have stripes of glue applied to all of the projecting portions at each end of the blank. To select the end portions which shall have glue applied thereto, or in other words, to deflect or divert away from the glue disks those portions which are not to have glue applied thereto, I employ a pair of deflector arms 9 which are carried by arms h depending from a rock-shaft e mounted iii-standards is, said rock-shaft having an arm Z. A spring m coiled upon the shaft-z and engaging the arm Z and one of the standards it", has a tendency to normally hold the rock-shaft and the deflector arms g in the position shown in Fig. 2, in opposition to the cam presently described. To the arm Z is connected the upper end of a pit man n, the other end of said pitman having a yoke 0 bestriding shaft 38, and having a roll 7) which is actedupon by a cam g carried by said shaft 38.

The cams 80 and g are so shaped and positioned relatively to each other that during the operation of the machine, just after the blank reaches the temporarily arrested position shown in Fig. 1, the arms g, the tips of which are then under two of the corner tongues 0, will swing upwardly and some what rearwardly, thus lifting those two corner tongues. Immediately following this the stop arms 74: rise and the starting roll 91 descends, ,so that the blank is pinched tightly enough between the traveling carriers 60, 61, to advance the blank with the end flaps or wings cZ passing under the arms g. It will be noticed that the depression of the cam q is quite short. This causes the arms g to immediately swing back to the position shown iaiaeia in Fig. 2. The end flaps or wings d are now under the arms 9 and will contact with the peripheries of the glue disks, but since the other two corner tongues c naturally retain their positions in the plane of the carrier belts, said other two corner tongues 0 will ride on top of the arms g, and, therefore, have no glue applied thereto.

It will now be understood that I have provided automatically operating deflectors which divert portions of the blank so that they travel in a plane out of the plane of the surface of the glue disks, the end flaps or wings (Z being selected as the ones which are permitted to have glue applied thereto.

I claim 1. Mechanism for applying an adhesive to selected portions of box blanks, comprising an adhesive applier, means for carry mg a blank past said applier, and a detlector for diverting a portion of the blank 1nto a path of travel out of the plane of the applier.

2. Mechanism for applying an adhesive to selected portions of box blanks, comprising a carrier for the blanks, guiding mechanism for causing different portions of the blanks to travel in different planes, and means for applying an adhesive to the portions traveling in one of said planes.

Mechanism for applying an adhesive to selected portions of box blanks, comprising a' carrier for the blanks, rocking arms for deflecting portions of said blanks, and means for applying an adhesive to the portions of the blanks which are not deflected.

4. In mechanism of the character described, the combination with a glue wheel, of means for feeding blanks past said glue wheel, a deflector, and means for operating said deflector to cause it to divert a selected portion of the blank to cause it to move past the glue wheel without contact therewith.

Tn testimony whereof I have aiiixed my signature, in presence of two witnesses.

ELIE W. LABQMBARDE. Witnesses:

MARY E. LUND, WyH. SIDEBOTHAM.

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