US1152970A - Box-covering machine. - Google Patents

Description

P- P. RACZYNSKI.

BOX COVERING MACHINE.

APPLICATION FILED Me. 8, I914.

1,i52,970. Patented Sept. 7, 1915.

"3 SHEEISSHEET I.

P. P. RACZYNSKI.

BOX COVERING MACHINE.

APPLICATION FILED DEC. 8. 1914.

1,152,970. Patent-ed'Sept. 7, 1915.

3 SHEETS-SHEET 2.

PETER P. RACZINSKI, OF CHICAGO, ILLINOIS.

BOX-COVERING MACHINE.

specification of Letters Patent.

Patented Sept. a, rare.

Application filed December 8, 1914;. Serial No. 876,109.

-To aZZ whom it mag concern:

Be it known that 1, PETER P. RAozYNsnr, a c1t1zen of the United States,-and a resr dent of the city of Chicago, county of Cook, and State of Illinois, have invented certainnew and useful Improvements in Box-Covering Machines, of which the following is a specification.

My invention relates to improvements in box-covering machines, the present invention being an improvement onthe box-covering machine of the Stokes & Smith Company, manufacture, as exemplified in Letters Patent to Philip S. Smith, No. 691,329,

dated January 14c, 1902, and No. 778,805, dated December 27, 190d. I

The object of invention is to provide certain improvements in machines of the class mentioned in order to-render the same capable of more eflicient service.

A further object is the production of improvements of the character mentioned,

which will be of simple construction and Figure 1 is a broken vertical section of a' portion of a machine embodying my invention, Fig. 2 is a side velevation of the 'fold- 1ng mechanism embodying the invention,

Figs. 3, land 5 arefperspective views showing the various stages in the folding operation of the box-covering, and Fig. ,6 is a top plan view, of the construction shown in" Fig. 2.

The-machine to which my improvements are applied, comprises generally, vertically movable box-supporting mechanism, said mechanism, in the, operation'of the machine being adapted to carry the box downwardly so as to permit of the application of the covering ,mater'ial thereto. This box-supporting mechanism comprises an upper form block 1, and a middle form blockQ which are supported at the lower ends of plungers 3 and 5': respectively, so as to per mit of slight relative vertical movement of said blocks. Below the middle form block 2 is the lower form'block 5 which is 'car ried at the upper end of a vertically movable plunger 6. i

In the operation of the machine, the box A which it is desired to cover, is first arranged upon the form blocks 1 and 2, the latter of course, being of a size to snugly receive the box. It is desired to soapply the covering-sheet B to the box A, that the end portions G and the side portions D of said covering sheet will be so folded against the corresponding walls ofthe box, that outwardly projecting flapsE will be formed at the vertical edges of the end walls of the box, as clearly shown in Fig. 1. It is also desired to so apply said covering sheet, that said flaps E will be subsequently folded against the ends of the believer the portion G of i said covering sheet in the manner shown in Fig; 5. After the flaps E have been folded to the position shown in Fig. 5, the upper edge portion F of the covering sheet is tucked in and secured in the manner, ;-shown in Fig. 5. In machmes of the manufacture above mentioned, the flaps which are formed at the vertical edges of the ends v of the box during the application of the covering are first folded to operative position, the central portion of the end of the covering being subsequentlyfolded to position so that in the finished article, the central portion of the end of the covering material will be outermost. It has been found,

however, that this construction is not durable and in the folding operation considerable difficulty has been experienced in the inward folding of the side flaps, which in a great many cases, results in the production of a box having untidy ends, or in which the covering at the ends is not symmetrical. The inward tuckin g of the portion F of the covering of the box is not claimed as new,

' the construction for performing this function being used at the present time.

Fn accomplishing the folding of the boxcovering in the manner above set forth, brushes 7 are employedwhich are positioned for registration with the respective ends of blocks 1 and 2. The backs 8 of the brushes .7 are clamped by screws 9 in supporting plates 10 which are slotted at their rearward secure the same to the supporting rods 11 in their positions of adjustment'upon the latter. The outer ends of plates 12 are slidably mounted upon upright posts A, set screws 15 relativeinward and outward movement of the latter, as will be readily understood. The brushes 7 are narrower in width than the ends of the box so that when the latter,

carrying the covering B arranged centrally,

upon the under side thereof, as shown in Fig. 3, is moved downwardly by the form blocks 1 and 2, between said brushes, the latter will engage with the central portions of the ends C of the covering and fold the same upwardly into engagement with the corresponding end walls of the box.

Immediately after the engagement of the ends of the covering with the brushes 7, the side portions D of said covering will be brought in contact with rollers 21 which are arranged at opposite sides of the form blocks 1 and 2 with their axes positioned slightly below the plane of said brushes, said rollers 21 being carried by movably mounted stems 22 which are carried at the inner ends of supporting bars 23 secured to and projecting from the frame 17. Helical compression springs24 cooperate with the stems 22 for yieldingly holding the rollers 21 at theirinner terminals of movement. Upon the passage of the boX to position between the rollers 21, the side portions D of the covering will engage with said rollers and be folded upwardly thereby into engagement with the side walls of the box, as shown in Fig. 4c. The relative arrangement of the brushes 7 and the rollers 21 which results in said brushes engaging with the ends C of the covering just prior to engagement of the central portions of said rollers with the side portions D of'the covering, causes the formation of'outwardly project-,

ing flaps E at the vertical edges of the end walls ofthe boX, as shown in Fig-4:.

Arranged below the brushes 7, in substan tially the same plane as the rollers 21, are two pairs of spaced parallel plates 25, the outer ends of which are slotted for engagement with the supporting bars 11. The engagement of said plates with said bars permits of lateral adjustment of the former, set screws 26 being provided for securing said plates in adjusted positions. Said plates are so positioned, that the inner edges thereof will engage in the corners G which are formed in the covering B at the inner sides of fiapsE, in order to crease said cornersso as to permit of more ready inward folding of the flaps E which subsequently occurs. Tn order to insure engagement of the inner edges of plates 25 with the innermost extremities of corners G, the outer sides of said plates, at the inner edges thereof, are beveled as at 27, as clearly shown in Fig. 6. Also, the passage of the flaps E between the rollers 21 and the outer sides of plates 25, serves to crease the lower edges of said flaps although not to a sharp edge. The lateral adjustment 'which is afforded the plates 25 permits of the same being brought closer together or farther apart in order to adapt th same for use in connection with boxes of various sizes which it may be desired to cover.

Arranged below the plates 25, as clearly shown in Fig. 1, are laterally movable plates'28 adapted to effect the in-turning or inward folding of the flaps E. The plates 28 are mounted in pairs upon supporting members 29 which are adjustably secured by set screws 30 to supporting heads 31 provided at the inner ends of laterally slidable bars 32 mounted in the frame 17 of the machine. lleciprocation of the rods 32 is secured by means of sleeves 33 which are slid-ably mounted upon the outer ends of bars 32, said sleeves being adapted for engagement with stop collars 3% which are adj ustably secured to sa d bars. The sleeves 33 are reciprocated through the medium of links 35 which are connected with the outer ends of rocker 21,.1118 36 carried by rock shafts 37 adapted, when the machine is in operation. to be intermittently oscillated or rocked. The mechanism which is here employed for effecting inward folding of the flaps E, is in use at the present time and therefore no claim is made to the specific construction thereof, the novelty in so far as this element is concerned, residing in the combination thereof with the other folding devices employed. It is of course understood, that the operation of the folding members 28 will be so timed. that one of the flaps E at each end of the box, will be folded over the other, as clearly shown in Fig. 5. Arranged directly below the folding members 28 are brushes 38 which are carried at the lower ends of supporting arms 39, the upper ends of said supporting arms being secured by screws 4.0 to the under sides of supporting plates 10. The brushes 38 serve simply as a means of pressing the flaps E se urely against the ends of the box.

In operation, the covering sheet B is first applied centrally to the underside of the box A which has previously been applied to the form blocks 1 and 2. Upon downward movement of the latter through actuation of the plungers 3 and r, the box together with said covering, will be pressed into engagement with the upper side of the lower block 5 which will be moved downwardly in unison with said box and form blocks, serving to securely hold the covering sheet in position against the under side of the box. engagement of the ends C of the covering with the brushes 7 and the sides I) of said covering with the rollers 21, said ends and sides will be rocked upwardly intoengagement with the corresponding walls of the box, resulting in the formation of outwardly projecting flaps E at the vertical edges of the end walls. Jpon continued downward movement the inner edges of members 25 will engage in the corners G and serve to crease oraccurately define the same, and also serve to partially crease the lower edges of said flaps. After leaving the members 25, said flaps E will be engaged by the laterally moving folding members 28 which will serve to fold said flaps inwardly to the position shown in Fig. 5, and upon farther downward movementof the box, thefbrushes 38 will engage with said folded flaps and press the same securely to operative position and at the same time crease the lower edges of said flaps to a fine edge. The final step in the folding operation which is that of inwardly tucking the edge i of the covering,

forms no part of the invention, this being the final step in the folding operation with machines of the class in question already in use. Upon return movement of the blocks 1 and 2, the box having the covering completely applied thereto is automatically discharged from said blocks as the same reach their upper terminals f movement so as to make way for the application of another box to be covered. The removing mechanism also is not a part of the present invention and so has not been shown in the drawings.

The construction set forth is adjustable to any size of a box within a limited range, the arrangement being such that these adjustments may be effected with ease and expedition.

W'hile lihave illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from. the spirit of the invention. 1, therefore, do not wish to be limited to the precise details of construction set forth, but

nism for folding and applying the covering I material to the lateral walls of the box;

means for causing a relative movement be-' tween the box supporting means and the covering mechanism, said. covering mechanism comprising side engag1ng means and Upon end-engaging means for folding the side and end walls of the box, the end-engaging means cooperating with each end of the box comprising a member of less width than the end wall of the box adapted to fold the central portion of the end of the covering material into engagement with. the corresponding end wall of the box and, upon folding of the side portions of said covering material into engagement with the side walls of the box, to form outwardly projecting flaps at the vertical edges of the corresponding end wall of the box; means for subsequently creasing the corners of said covering material at the inner sides of said flaps; and means for subsequently folding said flaps against said end wall, substantially as described.

2. In a box-covering machine, means for supporting'the box to be covered; mechanism for folding and applying the covering material to the lateral walls of the box;

means for causing a relative movement between the box supporting means and the tral portion of the end of the covering materi al into engagement with the corresponding end wall of the box and, upon folding of the side portions of said covering material into engagement with the side walls of the box, to form outwardly projecting flaps at the vertical edges of the corresponding end wall'ofthe box; two spaced creasing members adapted to subsequently crease the corners of said covering material'at the inner sidesof said flaps; and means for subsequently folding said iiaps against said end wall, substantially as described.

3. In a box-coveringmachine, means for supporting the box to be covered; mechanism for folding and applying the covering inaterial'to the lateral walls of the box; means for causinga relative movement l:=e

tween the box supporting means and the covermg mechanism, said covering mechanism comprising side-engaging means and end-engaging means for folding the s de and end portions respectively of the covering material into engagement with the side anl end walls of the box, the end-engaging means cooperatingwith each end the box comprising a member of less width than the end wall of the boxadaptedto fold the cen tral portion of the end of the covering material mto engagement with the correspondsing end wall of the box and, upon folding of the side portions of said covering material into engagement with the side walls of the box, to form outwardly projecting flaps at 5 the vertical edges of the corresponding end wall of the box; two spaced parallel plates having edges adapted to subsequently engage in and crease the corners of said covering material at the inner sides of said flaps, the outer sides of said plates adjacent said edges being beveled; and means for subsequently folding said flaps against said end wall, substantially as described.

4:. in a box covering machine, means for supporting the box to be covered; mechaiismfor folding applying the covering iaterial to the la ral walls of the box to ill the same thereto; means for vertically reciprocating said box supporting means. said covering mechanism comprising sideengaging means endengaging means for folding the side and end portions respectively of the covering material upwardly into engagement with the side and end walls f tlebox, the cnd-engaging means 005perating with each end of the box comprisa brush of width than the end wall of thcbox adapted to fold and press the cen tral portions of the end of the covering matcrial into engagement with the corresponding end wall of the box, and, upon folding of the side portions of said covering material into engagement with the side walls of the box, to form outwardly projecting flaps 05 at the vertical edges of the corresponding end wall of the box; vertically extending contact surfaces arranged below said brush adapted subsequently to engage in and crease the corners of said covering material 49 at the inner sides of said flaps; laterally movable blades arranged below said creas surfaces for subsequently folding said s to position against the end walls of the g and means arranged below said blades .ubsequently pr ssing said flaps toward ed position, substantially as described.

In a.boxcovering machine, means for porting the box to be covered; means for ding and applying the covering material to the lateral ,walls of the box; means for causing a relative movement between the box supporting means the covering mechanism, said covering mechanism comprising .means for folding the side and end portions of the covering material into engagement withthe side and end walls respectively of th box so as to form outwardly projecting at the vertical edges of said end Walls; s for subsequently creasing thecorners said covering material at the inner sides s id fla ,s; and means for subsequently folding said flaps against said end walls, substantially as described.

6. in a box-covering machine, means for 5 supporting the box to be covered; means for folding and applying the covering material to the lateral walls of the box; means for causing a relative movement between the box supporting means and the covering mechanism, said covering mechanism comprising means for folding the side and end portions of the covering material into engagement with the side and end walls respectively of the box so as to form outwardly projecting flaps at the vertical edges of said end walls, said side folding means being extended beyond the ends of the box; means cooperating with said extended portions of said side folding means for subse- I quently creasing the corners of said covering material at the inner sides of said flaps; and means for subsequently folding said flaps against said end walls, substantially as described.

7. In a box-covering machine, means for supporting the box to be covered; means for folding and applying the covering material to the lateral walls of the box; means for causing a relative movement between the box supporting means and the covering mechanism, said covering mechanism comprising means for folding the side and end portions of the covering material into engagement with the side and end walls respectively of the box so as to form outwardly projecting flaps at the vertical edges of said end walls, said side folding means being extended beyond the ends of the box; means cooperating said extended portions of said side folding means for subsequently partially creasing the lower edges of said flaps and creasing the corners of said covering material at the inner sides of said flaps; and means for subsequently folding said flaps against said end Walls, substantially as described.

8. In a box-covering machine, means for supporting the box to be covered; means for folding and applying the covering material to the lateral walls of the box; means for causing a relative movement between the box supporting means and the covering mechanism, said covering mechanism comprising means for folding theside and end portions of the covering material into engagement with the side and end walls respectively of the box so as to form outwardly projecting flaps at thevertical edges of said end walls; means for subsequently partially creasing the lower edges of said flaps and creasing the corners of said covering material at the inner sides of said flaps, said last mentioned means comprising a pair of slightly separated contact surfaces provided for engagement with each of said flaps; and means for subsequently folding said flaps against said end walls, substantially as described.

9. In a box-covering machine, means for supporting the box to be covered; means for folding and applying the. covering material to the lateral walls of the box; means for mechanism, said coveringmechanism comprising means for folding the side and end portions of the covering material into engagement with the side and end walls respectively of the box so as to form outwardly projecting flaps at the vertical edges of said end walls; means for subsequently partially creasing the lower edges of said flaps and creasing the corners of said covering material at the'inner sides of said flaps, said last mentioned means comprising a pair of slightl separated contact surfaces provided for engagement with each of said flaps, said surfaces being in closest proximity adjacent the box, the space between said surfaces being of increased width the remainder of their extent; and means for subsequently folding said flaps against said end Walls, substantially as described.

10. In a box-covering machine, means for supporting the box to be covered; means for folding and applying the covering material to the lateral walls of the box; means for causing a relative movement between the box supporting means and the covering mechanism, said covering mechanism comprising means for folding the side and end portions of the covering material into engagement with the side and end walls respectively of the box soas to form outwardly projecting flaps at the vertical edges of said end walls; means for subsequently partially creasing the lower edges of said flaps and creasing the corners of said covering material at the inner sides of said flaps, said last mentioned means comprising a pair of slightly separated contact gurfaces provided for engagement with each of said flaps, said surfaces being in closestproximity adjacent the box, the contact surface at the inner side of each flap receding slightly from the adjacent side of the flap as said surface recedes from the box, so as to increase the width of the space between said contacting surfaces the remainder of their extent; and means for subsequently folding said flaps against said end walls, substantially as described.

11. In a box-covering machine, means for supporting the box to be covered; means for folding and applying the covering material to the lateral walls of the box; means for causing a relative movement between the box supporting means and the covering mechanism, saidcovering mechanism comprising side-engaging means and end-engaging means for folding the side and end portions respectively of the covering material into engagement with the side and end walls respectively of the box, the end-engaging means cooperating with each endof the box comprising folding means of less width than the end wall of the boxadapted to fold and press the central portion of the end of the covering material into engagement with the corresponding end wallof the box and, upon folding of the side portions of saidcovering material into engagement with the side walls of the box to form outwardly projecting flaps at the vertical edges of the corresponding end wallof the box; vertically extending creasing members arranged below said folding means adapted subsequently to engage in and crease the corners of said covering material at the inner sides of said flaps; means arranged below said creasing members for subsequently folding said flaps to position against the end walls of the box; press- I mg means arranged below said last men tioned folding means for subsequently pressing said flaps toward folded positiongand vertically ad ustable means carrying the first mentioned foldlng means, creasing 'members and pressing means cooperating wlth each end of the box, substantially as to the lateral walls of the box; means for causing a relative movement between the box supporting means and the coveringv mechanism, said covering mechanism comprising side-engaging means and endengaging means for folding the side and end portions respectively of the covering material into engagement with the side and end prising side-engaging means and end-engaging means cooperating with each end of the box comprising folding means of less width than the end wall of the box adapted to fold and press the central portion-of the end of the covering material into engagement with the corresponding end wall ofthe box and, upon folding of the side portions of said covering material into engagement with the side walls of the box, to form eut- -wardly projecting flaps at the vertical edges of the corresponding end wall of the box; vertically extending creasing members arranged below said folding means adapted subsequently to engage in and crease the corners of said covering material at the inner sides of said flaps; means arranged below said creasing members for subsequently folding saidflaps to position against the end walls of the box; pressing means arranged below said last mentioned folding means for subsequently pressing said flaps toward folded position; a post arranged at each end of the box; and means mounted for vertical adjustment upon said post carrying the first mentioned folding means, creasing members, and pressing means coiiperating with each end of the box, substantially as described.

13. In a box-covering machine, means for prising side-engaging means and end-engaging means for folding the side and end portions respectively of the covering material into engagement with the side and end Walls respectively of the box, the end-engaging means cooperating with each end of the box I comprising folding means of less width than the end Wall of the box adapted to fold and press the central portion of the end of the covering material into engagement with the corresponding end wall of the box and, upon folding of the side portions of said covering material into engagement with the side walls of the box, to form outwardly projecting flaps at the vertical edges of the corresponding end Wall of the box; vertically extending creasing members arranged below said folding means adapted subsequently to engage in and crease the corners of said covering material at the inner sides of said flaps; means arranged below said creasing members for subsequently folding said flaps to position against the end walls of the box; pressing means arranged below said last mentioned folding means for subsequently pressing said flaps toward folded position; a post arranged at each end of the box; and a plate mounted for vertical adjustment upon said post carrying the first mentioned folding means, creasing members, and press ing means cooperating with each end of the box, substantially as described.

14. In a box-covering machine means for supporting the box to be covered; means for folding and applying the covering material to the lateral Walls of the box; means for causing a relative movement between the Copies of this patent may be obtained for box supporting means and the covering mechanism, said covering mechanism comprising side-engaging means and end-engaging means for folding the side and end portions respectively of the covering material into engagement with the side and end walls respectively of the box, the end-engaging means cooperating with each end of the box comprising folding means of less width than the end wall of the box adapted to fold and press the central portion of the end of the covering material into engage ment with the corresponding end wall of the box and, upon folding of the side portions of said covering material into engage ment with the side walls of the box, to form outwardly projecting flaps at the vertical edges of the corresponding end wall of the box; vertically extending creasing members arranged below said folding means adapted subsequently to engage in and crease the corners of said covering material at the inner sides of said flaps; means arranged below said creasing members for subsequently folding said flaps to position against the end walls of the box; pressing means arranged below said last mentioned folding means for subsequently pressing said flaps toward folding position; a horizontally adjustable post arranged at each end of the box; and means mounted for vertical adjustment upon said post carrying the first mentioned folding means, creasing members, and pressing means cooperating with each end of the box, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

PETER P. RACZYNSKI. Witnesses:

ARTHUR A. OLsoN, JOSHUA B. H. Por'rs.

five cents each, by addressing the Commissioner of Patents, Washington, I). C.

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