US1986039A

US1986039A - Adhesive-applying mechanism

Info

Publication number: US1986039A
Application number: US629365A
Authority: US
Inventors: Raymond E Ackley
Original assignee: RR Donnelley and Sons Co
Current assignee: RR Donnelley and Sons Co
Priority date: 1932-08-18
Filing date: 1932-08-18
Publication date: 1935-01-01
Anticipated expiration: 1952-01-01

Description

Jan. 1v, 1935. R. E. AcKLEY ADHESIVE APPLYING MECHANISM Filed Aug. 18, 1932 3 Sheets-Sheet 1 wlw..

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Jan. 1, 1935. R. E. AcKLl-:Y

ADHESIVE APPLYING MECHANISM Filed Aug. 18, 1952 3 Sheets-Sheet 2 Jan. 1, 1935.

R. E. ACKLEY ADHESIVE APPLYING MECHANISM Filed Aug. 18, 1932 3 Shee'tS-Shee'b 5 NN @INN 1II my n m v 9N NM, @w um QN QW Q N% NN QN N%l N u: W5 mw ,mw QM Sw QN INMMWH lfHlIHl Ummm @1% m. w, Q J MJ W Sm Sm. M5

Patented Jen. 1, 1935 UNITED STATES ADHE SIV E -APPLYING MECHANISM Raymond E. Ackley, Chicago, Ill., assignor to R. B. Donnelley & Sons Company, Chicago, Ill., a

corporation of Illinois Application August 18,

14 Claims.

My invention relates to mechanism for ap- Dlying an adhesive, such as glue, to objects as for example, and more particularly, wrapper-sheets and books.

My invention as to one phase thereof relates to mechanism for applying the adhesive to the upper surface of the object to which the adhesive is to be applied, my object in this connection being to provide a construction of adhesive-applying mechanism operative to apply the adhesiveas stated, which will be of simple construction, operative to apply the adhesive in a highly satisfactory manner without leakage of the adhesive and without undue exposure of the adhesive to the drying effects of the atmosphere, and which may be readily maintained in clean condition.

Another phase of my invention relates to the relationship of the bearings for the adhesivetransfer mechanism to the adhesive in the pot thereof, my object in this connection being to provide a construction of mechanism more particularly, though not exclusively,l for use 'in applying the adhesive to the upper surface of the object, whereby the bearings referred to will be protected against contact by the adhesive.

Still another phase of the invention relates to the pot for holding the adhesive, it being my object in this connection to provide a construetion of pot which may be readily disassembled and cleansed and readily reassembled.

Still another phase of the invention relates to the length of the line of adhesive applied by the mechanism, my object in this connection being to provide mechanism whereby lines of adhesive may be applied to the object to reach short of both ends of the latter which is of particular advantage in the case of the wrapping of books or other objects to avoid squeezlng of the glue beyond the ends of the wrappers, and whereby lines of adhesive of different length may be applied in the proper position to the objects regardless of the length of the objects to which the adhesive is to be applied and which is of particular advantage in a machine provided with means for advancing in succession to the adhesive applying mechanism sheets or other objects to which the adhesive is to be applied.

While my invention is adapted for use in a-wide variety of machines, I have chosen to illustrate it in connection with a machine for wrapping books which are sufliciently flexible to be folded, the machine shown being of the same general construction as that disclosed in my pending application for United States Letters Patent Serial No. 621,718, led July 9, 1932, only such parts there- 1932, serial No. ceases v (ci. :a1-5o) illustrated.

Referring to the accompanying drawings:

Figure v1 is a plan view of a'portlon of the wrapping machine equipped with my improvements.

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

Figure 3 is an enlarged section taken at the line 3 on Fig. '1 and viewed in the direction of the arrow.-

Figure 4 is'a face view of one of the adhesivetransfer wheels.

Figure 5 is a face view of the other of the adhesive-transfer wheels.

Figure 6 is a plan view of the adhesive-applying mechanism illustrating an adjustment of the transfer wheels relative to each other for varying the length of the line of adhesive applied thereto; and

Figure 7, a fragmentary plan view showing a modification of the adhesive-applying mechansm.

Referring to the particular machine illustrated, 10 represents an endless chain conveyor trained at its ends over sprockets, the sprocket at one end thereof being represented at 11,-the conveyor being shown as driven by mechanism comprising `a main drive shaft 12 driven, through speed-reducing gear mechanism 13, by a motor represented at 14 and connected with the mechanism 13 by a sprocket chain '15. The drive shaft 12 is provided with a worm 16 meshing with a worm gear 17 on a vertical shaft 18, the shaft 18 being provided at its upper end with a helical gear 19 meshing with a helical gear 20 rigid on a shaft 21 to v which the sprocket 11 is secured.

The conveyor chain 10 which operatesl to convey partially wrapped books along the machine for application of adhesive to the Wrappers and the subsequent completion of the wrapper-folding operations, is provided with means at spaced equal intervals therealong for gripping the partially wrapped books fory the conveying thereof along the machine. In the'particular construction shown these means comprise clips 22 mounted on the conveyor chain 10 to be movable into and out of clamping position and serving to clamp the wrapped portions of the booksat their forward edges against the conveyor chain 10, the clips 22 defining the positions assumed by these forward edges regardless of the length of the books 'measured lengthwise of the'machlne.

It may here be stated that in the particular construction shown the conveyor 10 delivers the partially wrapped books to the adhesive-applying mechanism lin the condition shown, namely, with the books represented at 23 folded as shown and with the wrappers represented at 24, partially foldedfaround the books and presenting free edges 25, which by a subsequent operation, .are to be folded over the other, folded, edges 25il of the wrappers and adhered thereto.

The adhesive-applying mechanism represented at 26 and constructed in accordance with my invention comprises a frame structure 27 mounted to slide crosswise of the main frame of the machine on a pair of stationary horizontal rods 28 secured to the stationary main frame,I the frame structure 27 having threaded engagement at 29 with a threaded adjusting shaft 30 -rotatably mounted in a cross bar 31 secured to the outer ends of the rods 28 to adapt. the adhesive-applying mechanism to be adjusted toward and away from the plane of the conveyor chain 10 to acthe wrappers 24. n

The mechanism 26 also comprises a vertically disposed disk 32 shown as peripherally annularly grooved at 33 and located directly beneath the outer margin 25 of the wrapper to form a support therefor in the application of the adhesive to the upper surface ofthe wrapper.

'Ihe disk 32 is fixed on a sleeve 34 journaled in a bearing portion 35 of the frame structure 27 and splined at 36 to ashaft 37 journaled `on the commodate varying widths of the portions 25 of frame of the machine and driven from the shaft Y12 through the medium of a sprocket chain ,38 trained about a sprocket 12a on the shaft 12 and a sprocket 39 on a shaft 40 connected with the shaft 37 through speed-reducing gear mechanism represented at 41.l l

The mechanism 26 further comprises a shaft 42 driven from the shaft 37 by bevel gears 43 and 44 on the

shafts

37 and 42, respectively, the shaft 42, which inclines upwardly in a direction away from the conveyor chain 10 at an angle of' 45 to the vertical, extending upwardly through the upwardly flaring side wall of a .pot 45 for holding the adhesive, such as for example glue,

to a position above the adhesive maintained inv the pot. n

It may be here stated that the pot 45 is shown as formed of a stationary receptacle section 46 shown as a part of the frame structure 27, and a removable liner member 47 constituting a receptacle, fitting within the section 46 and removable and replaceable therein, the section 46 containing an opening 48 in its side Wall in which a flanged tubular member 49 is secured in surrounding relationship to the shaft 42, ball bearings 50 and 51 being located between the member 49 and shaft 42, and" the liner member 47 having 'a tubular extension 52 surrounding the memberl 49, both .The mechanism 26 also comprisesan adhesive- -transfer wheel 53 formed o f an upper cup-shaped portion 54 surrounding the upper end of the member 49 and the extension 52 and provided at its outer annular edge portion with an annular flange 55 which extends into the'adhesive in the pot 45, the wheel 53 being secured at'the bottom portion`56 of its cup portion 54 to the upper end of the shaft 42 for rotation therewith. f y

The peripheral edge of the flange portion `55 of the'wheel 53 is annularly beveled at an angle of 45 to the face of the flange, as represented at.55, this beveled surface being preferably roughened, as for example by knurling it..I i

Co-operating with the wheel v53 is a terminal transfer wheel 57 shown as in the form of a disk and'secured to the upper end of a shaft 58 positioned to extend at a right angle to the shaftl 42 and journaled at bearings 59'and 60 in the frame structure 27, the shaft 58 having a bevel gear 6l which is driven by a bevel gear 62 on -the shaft 42. The peripheral edge of the wheel 57, is beveled as represented at 63, at anangle of 45 to the face of this wheel, at which beveled portion, preferably roughened as stated of the wheel 53, 'it opposes the beveled surface 55a of the wheel 53, extending sufficiently close thereto to receive adhesive carried up on the periphery of the wheel 53 in rotating in the adhesive in the pot 45.

Thewheel 57 at its beveled portion'diametrical- 1y opposed to the portion thereof opposing the bevel surface of the wheel 53 extends into such a position, as shown, over the portion 25 of the wrapper'that, in the movement of the wrapper by the conveyor 10 and in the rotation of the wheel 57, which rotates at its periphery at the same surface speed as the wrapper, the adhesive is transferredfrom the wheel 57 to the wrapper to form a line of adhesive thereon as represented at 64.

It is desirable in many cases, and particularly in the case of applying adhesive to a wrapper, as in the construction illustrated, that the adhesive reach short of both the forward and rear ends ofthe object to which the adhesive is to be applied, in the case of a wrapper to avoid the squeezing of the adhesive beyond theV opposite ends of the wrapper in the subsequent applying of squeezing pressure to the wrapper, and to accomplish this purpose the peripheral edge of the wheel 57 is appropriately recessed. In the particular coristruction shown, wherein'the circumference of -the wheel 57 is twice the length of the bookrthe periphery of the wheel 57 is provided with diametrically opposed recesses, or cutouts, 65and 66, and the wheel 57 is so angularly positioned about the axis of the shaft 58 that the adhesive will be applied slightly to the rear of thev forward edge of each wrapper as indicated at 67 and reaches short of the opposite end of each wrapper as indicated at 68, assuming that a wrapper of a predetermined length measured lengthwise of the machine is being operated on as shown.

However, where the length of the line of adhesive is required to be shorter than the length of the peripheral portions of the wheel 57 between the

recesses

65 and 66, as for example where a wrapper of shorter length than that shown is to 4be operated on and it is desired that the. lines of applied to the Wrappers the wheel 53 would be angularly adjusted so that the

recesses

67 and 68,

shown as of the same length as the recesses 65 vand 66, would register, in the rotation of these wheels, with the

recesses

66 and 65, respectively,

as will be manifest from Fig. 1. A line of adhesive of less lengththan the maximum thus pro-` vided for and of a predetermined length within certain limits may be applied by the wheel 57 by adjusting the wheel 53 angularly so that only a portion of the beveled periphery of the wheel 57 will receive adhesive. 'Thus in the angular adjustment of the wheel 53 to the position shown in Fig. 6 adhesive will be applied to the`periphery of the wheel 57 only between the points indicated at 69 and 70 and between the points indicated at 71 and 72.

Referring to the modification of the construction shown in Fig. 7, this construction is the same as that of the preceding figures except that instead of providing the cutouts or recesses in the

wheels

53 and 57, the peripheries thereof are unbroken resulting in the continuous supplying of adhesive from the periphery of the wheel 53 to the periphery of the wheel 57 and thus the application of lines of adhesive to the portions 25 of the wrappers throughout the length thereof are shown.

As will be understood from the foregoing the feature of providing the transfer wheel 53 with the cup portion 54 extending upwardly therefrom in the inclined position of `the wheel, is of advantage as it prevents access of the adhesive to the bearings for the shaft 42, andthe constructing of the various parts of the adhesive-applying mechanism shown permits of .the ready disassembling of the parts as for example for cleansing and the ready re-assembling thereof.

Furthermore, the relative arrangement of the transfer wheels permits of the application of lines of glue to the objects as desired, withoutl danger'of leakage of the glue and by a simple construction and without subjecting the film of glue to the atmosphere for an undue length of time.

While the peripheral transfer portions of the terminal transfer wheel are so formed that unbroken lines of adhesive are applied to the wrappers, it will be understood that if ldesired such portions may be so formed as to cause thev line of adhesive to be formed of spaced apart bodies of the adhesive.

While I have illustrated and described certain particular constructions of mechanism I do not wish to be understood as intending to limit my invention thereto as the same may be variously modified and altered and the invention embodied in other forms of structure without departing from the spirit of the invention.

What I claim as new, and desire to secure by Letters Patent, is:

1. Adhesive-applying mechanism comprising a source of adhesive-supply, adhesive-transfer wheels so disposed that the adhesive is transferred at the peripheral portions of said wheels, the peripheral portions of said wheels being recessed, said wheels being angularly relatively adjustable.

2. Adhesive-applying mechanism comprising a source of adhesive-supply, adhesive-transfer wheels so disposed that the adhesive is transferred at the peripheral portions of said wheels, the peripheral portions of said Wheels being recessed at different places around their circumferences said Wheels being angularly relatively adjustable.

3. Adhesive-applying mechanism comprising a source of adhesive-supply, adhesive-transfer wheels so disposed that the adhesive is transferred at the peripheral portions of said wheels, the

peripheral portions of said wheels containing diametrically opposed recesses, said wheels rbeing angularly relatively adjustable.

. 4. Adhesive-applying mechanism comprising a pot for the adhesive, a' rotatable shaft, and a transfer wheel secured to said shaft and having a central cup portion and a peripheral ange portionv at the outer edge of said cup portion and extending angularly into the adhesive in said pot, said shaft extending into said cup portion.

5. Adhesive-applying mechanism comprising ak pot fcr the adhesive, a rotatable shaft, and a transfer wheel having a central cup portion anda peripheral flange portion at the outer edge of said cup portion and extending into .the adhesive in `said pot, said shaft extending into said cup portion and said cup portion being secured at its bottom wall tosaid shaft.

6. Adhesive-applying mechanism comprising a pot for the adhesive,-a rotatable shaft extending upwardly at an acute angle into said pot and a transfer wheel secured to said shaft and having a central cup portion and a peripheral flange portion at the outer edge of said cup portion and extending into the adhesive in said pot, the upper end of said shaft extending into said cup portion.

7. Adhesive-applying mechanism comprising a A pot for the adhesive, a rotatable shaft extending at an acute angle into said pot, a tubular member supply and a pair of adhesive-transfer wheelsI mounted on axes disposed angularly relative to each other, the peripheries of said wheels being beveled and in adhesive-transferring contact at a common point in their circumferences, a portion of the periphery of one of said wheels dipping into said adhesive supply, the other of said wheels extending wholly above that portion of an object cn said support which is to receive the adhesive, a portion of the periphery of said last referred to wheel extending in substantially parallel relation to said potrion of the object and in contact therewith. s

9. In combination, a support for an object to which adhesive is to be applied, and adhesiveapplying mechanism comprising a source of a-dhesive supply and a pair of adhesive-transfer wheels mounted on axes disposed substantially at a right angle, the peripheries of said wheels being mitered and in adhesive-transferring contact at a common point in their circumferences, a portion of the periphery of one of said wheels dipping into said adhesive supply, the other of said wheels extending wholly above that portion of an object vcn said support which is to receive adhesive, a

portion of the periphery of said last referred to wheel extending in substantially parallel relation to said portion of the object and in contact therewith.

. 10. Adhesive-applying mechanism comprising, in combination: a source of adhesive supply; a

plurality of. coacting elements to transfer adhesive having receiving and transferring surfaces coacting with each other throughout predetermined portions of their areas of variable extent; and means for relative adjustment of said elements to vary the extent of said coacting areas.

11. Adhesive-applying mechanism comprising, incombination: conveyor means including equidistantly spaced members for engaging and conveying objects to which adhesive is to be applied; a source of adhesive supply; a plurality of co-acting elements to transfer adhesive from said source to objects upon said conveyor,v two of said elements having receiving and transferring surfaces coacting with each other throughout predetermined portions of their areas of variable extent; and means for relativeadjustment of said elements to vary the extent of said coacting areas.

12. Adhesive-applying mechanism comprising, in combination: a conveyor mechanism including equidistantly spaced portions for engaging and conveying objects to which adhesive is to be applied; adhesive-applying mechanism comprising a rotary adhesive-applying member mounted for edgewise contact with objects moving on said conveying mechanism; drive means for said mechanisms synchronized to cause a. plurality of objects to be contacted by said rotary member at each revolution thereof; said ad- .hesive-applying mechanism also including adhesive transfer means to transfer adhesive to limited predetermined aros of the object-contacting edge of said member; and settable means to adjust the relative positions of said member and means, to vary the lengths and/or positions of said arcs. y

13. In a device of the class described, in oombination: a conveyor means; members on said -conveyor for engaging and conveying each a separate object to which adhesive is to beA applied; adhesive-applying mechanism; said mechanism4 comprising adhesive-applying means operative to apply to each of said objects a single line of adhesive of less length than that of the object, .and means to transfer adhesive 4to said Aapplying means; and means to adjust the relative positions of said applying and transfer means to vary the lengths of said applied lines of ad-' hesive.

14. In combination with conveyor means having portions equidistantly spaced for engaging and conveying objects to which adhesive is to be applied, of mechanism for applying a. line of adhesive to the objects comprising a rotary element adapted to contact each of the objects and transfer a line of adhesive thereto, means for feeding a line of adhesive of predetermined length to said rotary element for transfer to each of said objects, and means for relative adjustment of said rotary element and said transfer means whereby to predetermine the extent of said transferred lines of adhesive.

RAYMOND E. ACKLEY.