US1933031A - Machine for use in making boxes - Google Patents

Description

Oct. 31, 1933. A. L. ROSENMUND MACHINE FOR USE IN MAKING BOXES INVENTOR.

1 Sheets-Sheet 2 Filed June 5. 1932 aqw/ 1? 77mm BY 9 ATTORNEYS.

Oct. 31, 1933. A RQSENMUND 1,933,031

MACHINE FOR USE IN MAKING BOXES Filed June 3. 1932 1 Sheets-Sheet 3 IN V ENTOR. 6 W fiw m gww 1360;. r M

ATTORNEYS.

Oct. 31, 1933. A. ROSENMUND 1,933,031

MACHINE FOR USE IN MAKING BOXES Filed June 3. 1952 16 Sheets-Sheet 4 FIB-5 INVENTOR.

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ATTORNEYS.

Oct. 31, 1933; A. 1.. ROSENMUND 1,933,031

MACHINE FOR USE IN MAKING BOXES Filed June 3, 1952 15 Sheets-Sheet 5 FIB-B IN VEN TOR BY 7' M 842:: g ATTORNEYS.

Oct. 31, 1933- A, ROSENMUND MACHINE FOR USE IN MAKING BOXES 44 Filed June 3. 1932 16 Sheets-Sheet 7 INVENTOR.

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FIE-8 Oct. 31, 1933. A. L. ROSENMUND MACHINE FOR USE IN MAKING BOXES Filed June 3. 1932 1 Sheets-Sheet 8 H HIHHHM INVENTOR.

BY 2 I 9 ATTO RAFIEYS FIE-9 Oct. 31, 1933. A. L. ROSENMUND 1,933,031

MACHINE FOR USE IN MAKING BOXES Filed June 3. 1932 1 Sheets-Sheet ,9

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FIB-IO 1933- A. L. ROSENMUND 1,933,031

MACHINE FOR USE IN MAKING BOXES Filed June 3. 1952 16 Sheets-Sheet 10 ELIE 2 .24

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Oct. 31, 1933.

A. L. ROSENMUND MACHINE FOR USE IN MAKING BOXES Filed June 5. 1932 16 Sheets$heet ll IN V ENTOR.

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Oct. 31, 1933. A. L. ROSENMUND MACHINE FOR USE IN MAKING BOXES Filed June 5. 1932 16 Sheets-Sheet 12 FIE-IE] NEYS.

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A. L. ROSENMUND MACHINE FOR USE IN MAKING BOXES Filed June 3, 1932 1 Sheets-Sheet 13 Hrs-2U INVENTOR; 5% xi flWM J BY 9 -7 r M 3 ATTORNEYS.

1933- A. L. ROSENMUND MACHINE FOR USE IN MAKING BOXES INVENTOR. W 77 BY 16 Sheets-Sheet 14 FIE-E4 Filed June 3, 1932 Oct. 31, 1933.

A. L. ROSENMUND MACHINE FOR USE IN MAKING BOXES 16 Sheets-Sheet 15 I L n Filed June 3. 1932 INVENTOR. aw i WW4 26; r @J;

7 ATTORNEYS.

FIB-Z7 Oct. 31, 1933- A. L. ROSENMUND MACHINE FOR USE IN MAKI NG BOXES Filed June 5, 1952 1 Sheets-Sheet l 6 FIE-Z9 6 W finwmw BY IN V EN TOR.

ATTORNEYS.

Patented Oct. 31, 1933 PATENT. OFFICE MACHINE FOR USE IN MAKING BOXES Alfred L. Rosenmund, Rockaway Borough, N. J.,

assignorto Stapling ration of Delaware Machines 00., a corpo- Application June 3, 1932. Serial No. 615,157

19 Claims.

This invention relates to machines for equipping wired boxes with fastening means adapted to connect adjacent box parts, and particularly to machines'for equipping wire-bound box blank with such fastening means.

One of the, objects of the invention is to provide an efficient machine for manipulating a wire secured to a box part to form the wire into a fastening means adapted to inter-engage with a similar fastening means on another box part.

Another object is to provide a machine adapted to receive a succession of box blanks which are connected together by wire bindings; sever the bindings between the box blanks and form the severed ends into inter-engageable fasteners. Another object of the invention is to provide a machine adapted to sever a plurality of binding wires connecting successive box blanks; bend the severed ends of the wires to form prongs; 0 bend the body of each wire to form a bight; and drive each prong into the box blank to perpetuate the bight.

Another object is to provide a machine of the character described which is adapted to receive and operate upon a succession of wire connected blanks as they leave the box blank machine which staples the wires to the blanks.

Another object is to provide a machine of the character described which may be efficiently and economically operated to provide wirebound box blanks with inter-engageable fastening means.

One illustrative embodiment of the invention is shown in the accompanying drawings, in which:- Figure 1 is a side elevation of a fastener supplying machine embodying the invention and showing thesame in operative relation to a wirebound box blank machine which staples binding wires to a succession of box blanks.

Fig. 2 is a top plan view of the fastener supplying machine and the box blank machine, illustrating the manner in which the succession of wire connected blanks pass directly from the box blank machine to the fastener supplying machine.

Fig. 3 is an enlarged side elevation of the fastener supplying machine.

Fig. 4 is a sectional view of the fastener supplying machine taken on the line 44 of Fig. 3. Fig. 5 is an enlarged sectional view taken on the line 5-5 of Fig. 4 and showing the parts in stopped position.

Fig. 6 is an enlarged sectional view taken. on the line 6-6 of Fig. 4, and also showing the parts in stopped position.

Fig. 7 is an enlarged sectional view taken on the line 7-7 of Fig. 4 with certain parts omitted for clearness of illustration. This figure shows in dotted lines the position of two wire connected blanks after they'have been fed into the machine and before the machine is started; and also in full lines, the position of the same box blanks immediately after the machine has been started and the blanks-have been lowered to present the connecting wires to the fastener forming mechanisms.

Fig. 8 is a similar view showing the position of the parts after the connecting wire has been severed and the severed ends bent to form prongs.

Fig. 9 is a similar view showing the position of the parts after the body of each severed wire has been bent to bring its prong over the box blank to form the bight.

Fig. 10 is a similar view showing the position of the parts after the prongs have been driven into the box blanks and clinched to perpetuate the bights and complete the fastener forming operation.

Fig. 11 is a top plan view of one of the fastener forming heads seen from the line 1111 of Fig. 7. so In this view the boxblanks are not shown.

Fig. 12 is a sectional view taken on the line 12-12 of Fig. 11. 1

Fig. 13 is a sectional view taken on the line 13-43 of Fig. 11.

Fig. 14 is diagrammatic plan view of a wire connecting two box blanks and illustrating the manner of severing the connecting wire.

Fig. 15.is a diagrammatic side view of the same, illustrating the, manner of bending the severed wire ends to provide prongs which are subsequently swungaround and driven into the box blank.

Fig. 16 is a diagrammatic planview illustrating. the manner in which the body of the wire is bent to form a bight, and illustrating also tne manner in which the prong is driven into the box blank to perpetuate the bight.

Fig. 17 is an enlarged sectional view taken on the line 17-17 of Fig. 4, with the parts shown in stopped position and with certain parts omitted for clearness of illustration.

Fig. 18 is an enlarged sectional view taken on the line 1e 1a of Fig. 4 with certain parts omitted and showing the manner in which the wire bending spindles are operated.

Fig. 19 is a horizontal section taken on the line 19--19 of Fig. 18, certain parts being omitted to illustrate more clearly the spindle drive.

Fig. 20 is a plan view of the supporting frame or table which receives and positions the box blanks in the machine.

Fig. 21 is a front elevation of the same and showing in dotted lines a box blank positioned thereon.

Fig. 22 is a sectional view taken on the line 22-22 of Fig. 20.

Fig. 23 is an enlarged partial plan view of one of the fastener forming heads illustrating the mechanism for positioning or centering the prong beneath the driver which drives the prong into the box blank. This view illustrates, in full lines, the parts as seen from the line 19-19 of Fig. 9, and in dotted lines, the position of the parts after the prong has been centered beneath the driver.

Fig. 24 is an enlarged partial plan view of one of the fastener forming heads and the support' ing table for the box blank, illustrating the stop mechanism for positioning the forward edge of a box blank in proper relation to the fastener forming mechanism. This view illustrates the parts as seen from the line 24-24 of Fig. 7.

Fig. 25 is a side elevation of the same seen from the line 25-25 of Fig. 24.

Fig. 26 is a section on the line 26-26 of Fig. 25 and also showing the plunger for operating the stop release mechanism.

Fig. 27 is a similar view showing the stop mechanism in released position.

Fig. 28 is a perspective view of a wirebound box equipped with fastening means supplied by the illustrative machine and illustrating the manner in which the fasteners i'riterengage to close the box.

Fig. 29 is a top plan view of a wirebound box blank after it has been equipped with fastening means by the machine of the invention and before it has been folded into box form.

Referring to Fig. 28, a wirebound box blank usually consists of four separate sections of side material A and cleats B, connected together in foldable relationship by binding wires C which are stapled to the side material and cleats by staples D. Such a blank may be made on any well known box blank machine, but preferably on a box blank machine in which the materials are fed continuously, as distinguished from intermittently, beneath the stapling mechanism which staples the binding wires to an indefinite succession of box blanks as they pass through the box blank machine. Such a machine is shown generally in Figs. 1 and 2. A suitable box blank machine for making the illustrative box blank shown herein is described in detail in U. S. Patent No. 1,669,383 of May 8, 1928, and need not be further described herein. It is suflicient to say that as the box blanks leave the box blank machine, they are connected together by the binding wires which have been stapled thereto in the blank machine operation.

Heretofore the wires connecting the box blanks as they leave the box blank machine ha e been severed either by hand, or by an automatic cutter incorporated in the box blank machine, and the flat blanks then have been folded into box form around end sections (shown at E in Fig. 28) and the wire ends intertwisted to close the box.

The fastener supplying machine of this invention shown generally at the left in Figs. land 2 is designed to receive the connected box blanks as they leave the blank machine, sever the connecting wires between blanks, form prongs on the severed ends, bend the body of the wire to swing the prong over onto the box blank to form a bight, drive the prong through the side material of the box blank, and clinch the end of the prong on the under side of the side material. The bights thus formed. are shown at F in Fig. 29. As there shown, the bights at one end of the blank are slightly wider than the bights at the other end of the blank, so that when the blank is folded into box form the smaller bights will readily pass through the larger bights and may be bent down against the side of the box as shown in Fig. 28. Such an interengageable fastening means has many advantages, as pointed out in my copending application Serial No. 561,- 821, filed September 9, 1931, reference to which is hereby made for a more detailed description of the fastening means supplied by the machine of this invention.

Referring to Figs. 1 and 2, as the connected blanks leave the box blank machine they are guided by the operator onto stationary guides 1 of the fastener supplying machine, which guides 1 may be adjustable to accommodate blanks of different widths. The operator pushes the blanks along the guides 1 into the fastener supplying machine.

As shown in Fig. 2, the box blanks thus fed into the machine are positioned over the fastener supplying mechanism on a table 2 which is adapted to be lowered as hereinafter explained to present the connecting wires to the fastener supplying mechanism. When the fastener supplying operation is completed the table 2 is raised' to initial position, permitting the operator to remove the completed blank and feed another blank for presentation to the fastener supplying mechanism.

Referring to Fig. 4, the fastener supplying mechanisms are supported between side frames 3 suitably braced by cross bars. As shown in Fig. 3, the side frames 3 may be formed of upper and lower sections having contacting flanges 4 appropriately secured together by bolts. Side frames 3 may be rigidly secured in any suitable manner to base beams 6.

As each wirebound box blank to be operated 12G upon is usually provided with a plurality of binding wires, the machine is equipped with a plurality of fastener supplying heads (one for each wire). In the illustrative machine four such heads are shown, designated generally in Fig. 4 125 by the reference numeral 7. The several heads 7 are adjustable cross-wise the machine to register with the several wires on a box blank, which wires may be spaced differently in different blanks.

As shown in Fig. '7, each fastener supplying head '7 consists of a casting 8 adjustably secured to cross bars 9 supported by the side frames. Casting 8 may be secured to cross bars 9 by bolts 10 and lock nuts 11. Bolted or otherwise secured 135 to the upper surface of the casting 8 is a casing 12 which carries the cutting and forming elements of the fastener supplying mechanism. As shown in Figs. 11 and 12, said casing 12 may be secured to the casting 8 by bolts 13. The cutter comprises a fixed cutting blade 14 and a movable cutting blade 15, normally separated by a spring 16 to receive between them the wire to be severed.

Again referring to Fig. 7, located at either side of the cutting members and secured to the casing 12 by screws 17, are forming blocks 18 over which the severed ends of the wire are bent to form the prongs. The forming blocks 18 are preferably in the shape shown in Fig. 7 to form prongs as shown in Fig. 15.

At either side of the casing 12 and extending through an opening in the casting 8 is a spindle 19 for engaging the body of the wire after it has been severed and the prong formed, to swing the prong over onto the box blank. Each spindle 19 is adjustably secured at its lower extremity to a cross bar- 20 supported on a frame 21 vertically reciprocable as hereinafter explained. The spindle 19 extends through a helical gear 22 which is journaled for rotation in the casting 8. Spindle 19 is slidably keyed to the gear 22 in such manner as to permit the spindle to reciprocate vertically within the gear. Within the spindle 19 is a fixed post 23 about which the spindle rotates. The upper end of the post 23 is provided with a lug 24 and the upper end of the spindle 19 is provided with a lug 25. The lugs 24 and 25 are spaced to receive between them the wire to be bent into the form of a bight. Upon rotation of spindle 19 about the post 23, lug 25 will rotate about lug 24, bending the wire about the lug 24. As shown in Fig. '7, lugs 24 and 25 are normally located below the wire to be bent. As explained hereinafter, the spindle 19 and the post 23 are raised to engage the wire just as the wire is severed by the cutters and the prongs are being formed on the severed ends;

As shown in Fig. 11, adjacent each spindle 19 and secured to the casting 8 by bolts 26 is a casing 27 carrying the mechanism for clinching the prong whenit is driven through, the side material of the box blank. As shown in Fig. 7, the casing 2'7 carries a vertically movable top plate 28 supported by rods 29 slidably mounted in the casing 27 and normally held in raised position by springs 30. Top plate 28 is provided with an opening 31 through which the prong to be clinched is inserted. Beneath the opening 31 is an anvil 32 fixed to the casing 2'7. As shown in Fig. 10, when the prong is driven downward toward the anvil 32, the top plate 28 is forced downward against the action of the springs and guides the formation of the clinch to cause the prong to be clinched in the manner shown in Fig. 10. The arrangement described permits the prong to be completely driven through the side material of the blank before it encounters the clinching anvil, and thus crushing of the prong is avoided and a proper clinch insured.

As shown in Fig. 14, when the blanks are in position to be operated upon and before the machine is started, the wire C lies above the space between the two cutting members 14 and 15 and in line with the space between lugs 24 and 25 of the spindles, so that when the machine is started the wire will drop between the cutters 14 and 15 which will sever the wire between them; and the spindles will rise and engage the wire between the lugs 24 and 25 (see Fig. 8) to raise the prongs from the forming blocks 18 and swing the prong over onto the box blank, as shown in Fig. 9.

As shown in Fig. 7, the mechanism for operating the cutters is carried by a cross bar 33 slidably mounted for vertical reciprocation in guideways 34 of the side frames (see Fig. 3). Said actuator consists of a cam-shaped plunger 35 adapted to enter an opening 36 (see Fig. 12) in casing 12 and by contact with a cam surface 37 of movable blade 15, cause blade 15 to move toward blade 14 and sever the wire therebetween. Referring to Fig. 10, plunger 35 is carried by a casting 38 secured to cross bar 33. Casting 38 may be adjustably secured to the bar 33 by means of bolts which pass through casting 38 and into another casting 39 on the other side 01 the bar 33.

Secured to casting 38'is a former plate 40 formed as shown to cooperate with the forms 18 to form prongs on the ends of the severed wire. The form of plate 40 is such that it bends the body of the wire to the shape shown in Fig. 15 and thereby causes the prong when driven through the box parts and clinched to bend inwardly as shown in Fig. 10.

Mounted-to slide vertically in castings 38 and 39 are spring pressed plungers 41 adapted when the bar 33 is lowered to engage the wire adjacent each former 18 and press it into firm contact with the top of the former, as shown in Fig. 8. This insures the wire being pressed between the cutters.

For driving the prongs into the box parts two drivers are provided, one for each blank being operated upon. As shown in Fig. 7, these drivers which are designated 42 are secured to a plate 43 adjustably secured to a cross bar 44 slidably mounted in guides 45 in side frames 3 (see Fig. 5) Plates 43 may be adjustablysecured to cross bars 4.4 by screw bolts which secure the plate 43 to another plate 46 on the other side of the bar 44. As hereinafter explained, the drivers 42 are arranged to descend and drive the prong into the box parts as soon as the prong has been swung over onto the box parts in position for driving.

To center the prong directly beneath the driver a movable locator is provided. The form of this locator is best shown in Fig. 23. As there shown, it consists of a pair of arms 47 and 48 spaced to provide a narrow opening 49 between them. The ends of the arms 47 and 48 are bent away from each other to provide a fan-shaped opening to receive the prong when the arms are moved toward the prong. As shown in dotted lines in Fig. 23, when the arms 47 and 48 are moved toward the prong it enters the slot 49 between the arms 47 and 48, and when in said slot is positioned directly beneath the driver 42 carried by the reciprocating bar 44.

As shown in Fig. 5, the locator, designated 50 in said figure, is mounted for limited rocking movement on a shaft 51 fixed to one end of a link .52 the other end of which is pivoted to the upper end of a link 53, the lower end of which is fixed to a rock shaft 54 journaled in a bearing supported by the base beams 6. Shaft 51 extends cross-wise the machine and is similarly fixed to a link 52 pivoted to a link 53 fixed to rock shaft 54 at the other side of the machine. The shaft 51 carries a locator 50 for each fastener forming head. Shaft 51 carrying the locators 50 is normally held in raised position by rollers 55 carried by links 52 and which rest on support blocks 56 carried by table 2. When the table 2 is lowered as hereinafter explained, links 52 carrying shaft 51 and locators 50 drop until the locators contact with the top of the box blank on the table 2. When in this position, shafts 54 carrying links 53 are rocked as hereinafter explained to move the locators toward the prongs to position them for driving and then to move the locators away from the driving prongs.

As shown in Figs. 20, 21 and 22, the table for receiving and positioning the box blanks to be operated upon consists of front and rear frames rigidly connected by inter-frame members. The front and rear frames each consist of cross bars 60 and side bars 61 connected to form a rectangular frame. The two frames are connected by interframe members 62 welded or otherwise rigidly secured to the cross bars 60 of the two frames' Supported on the cross bars 60 of the front and rear frames are guide members 63 to out of line of travel of the blank and to permit guide and position the box blanks laterally of the table as they are fed to the table and during a fastener supplying operation. The guides 63 are adjustable laterally on the inner cross bars and extending between the front and rear frames are rods 64 to assist in supporting the box blanks. As hereinbefore explained, the table or frame is adapted to be lowered to present the blanks to the fastener supplying mechanism and then to be raised to permit the finished blank to be removed. For this ourpose the table or frame is provided with a depending bracket 65 secured to each interframe member 62 and carrying a roller 66 adapted to rest u on a cam 6'7 carried by the main shaft 68 of the machine. As shown in Fig.

5, this cam 67 is formed to raise the table when in one position and permit the table to fall by gravity when in another position. To guide the table in its reciprocating movements, the table is provided with four downwardly extending rods 69 slidably mounted in bearings 70 carried by cross bars 9 supported by the side frames. As shown in Fig. 6, compression springs '72 may be provided to cushion the fall of the table and to assist in raising it. To press the box blanks into firm contact with the guides and supports on the positioning table, there may be provided a yielding presser spring '73 carried by brackets '74 secured to the under side of guides 63 and extending over onto the box blank.

Referring toFig. 24, mechanism is provided to position or locate the forward end of the incoming box blank in proper posi ion relative to the fastener supplying mechanism, so that the fastener formed on the blank will be in proper relation to the forward edge or the blank. As there shown, a stop member designated '75 is provided to engage the forward edge of each box blank as it enters the machine and position it relative to the fastener supplying mechanism. Stop '75 is fixed to and extends at right angles from a rock shaft '76 journaled in bearings in a frame '77 secured to the under side of guide 63. Upon completion of a fastener supplying operation, shaft '76 is rocked to move stop member '75 another blank to be fed into the machine, whereupon the stop is again moved to stop position in front of the blank. The movements of the stop member '75 are effected in the following manner. As shown in Fig. 24, the stop '75 is in engagement with the front end of a box blank to hold it in correct position during a fastener supplying operation. As the operation is completed, the stop '75 is moved downward by a pin (see Figs. 26 and 27) carried by the vertically reciprocating driver bar 44. Downward move- 7 ment of stop '75 rocks shaft '76. Keyed to shaft 76 is a latch 81 which when lowered by the rocking of shaft '76 is engaged and held by a pawl 82 carried by an arm 83 pivoted at its lower end to frame '77 and urged toward the latch by a spring 84. Thus the stop '75 is moved from the position shown in Fig. 26 to the position shown in Fig. 27

upon the completion of a fastener forming operation and is held in that position by the pawl 82 until theblank which has been operated upon is remove'dfl'f'As the blank is removed the pawl 82 is automatically withdrawn from the latch 81 and me 'shaft '76 carrying the stop 75 is returned to 1min position where the stop '75 lies in the path of the incoming blank. Pawl 82 is withdrawn from the latch through the action of a spring 85 secured atone end to frame '77 and at the other end to the lower end of an arm 86 pivoted to frame '77 at 8'7. Pivotall y connected to the arm 86 above its pivot point 87 is a plate 88 having a pin and slot connection with pawl carrying arm 83, so that when arm 86 is moved by spring 85 in a counter-clockwise direction about its pivot point 87, pawl carrying arm 83 will be moved to the left in-Fig. 2'7 and withdraw pawl 82 from latch 81, thus permitting a spring 89 to rock shaft '76 and catch 81 to initial position. Arm 86 is normally held in operative position by the cleat B of the box blank being operated upon, which cleat as shown in Figs. 24 and 27 bears against a plate 90 carried by the upper end of arm 86 and prevents spring 85 from moving arm 86 to release the pawl 82. When, however, a gap .between box blanks appears opposite plate 90,

the plate moves into the gap under the action of spring 85, thus moving pawl carrying arm 83 and releasing the pawl to permit the stop '75 to move into the path of the oncoming blank. The cleat of the oncoming blank engages the flared end of the plate 90 and returns it to initial position. It will be understood that two stops '75 similarly operated are provided, one on each side of a box blank.

Thus it will be seen that provision is made for accurately positioning each blank both laterally and longitudinally during a fastener forming operation, the guides 63 of the table acting to contact with the inner sides of the cleats B and position the blank laterally, and the stop '75 acting on the forward edge of the blank to position it longitudinally.

Referring to Fig. 5, the several elements of the machine are operated from a main shaft 68, which is journaled in the side frames 3. Shaft 68 is driven in a. counter-clockwise direction (Fig. 5) through a gear 100 fast on shaft 68, a drive chain 101 and a gear 102 fast on a shaft 103. As shown in Fig. 4, shaft 103 may be driven from a motor 104 supported on the base beams 6, the shaft 105 of the motor being connected to the shaft 103 by a clutch 106, which is operated to connect shafts 103 and 135 by a foot pedal 10'7. Preferably a single stroke clutch mechanism is employed so as to disconnect the clutch after each complete revolution of main shaft 68.

Referring to Figs. 17 and 19, the spindles 19 are rotated to form bights on the severed wires by means of a mutilated gear 110 fast on shaft 68, which intermittently engages a gear 111 fast on a shaft 112, which is journaled in the side frames of the machine. Gears 113 on shaft 112 engage the helical gears 22 keyed to the spindles 19 and rotate the same. The mutilated gear 110 is constructed and arranged to give spindles 19 a half rotation each time the teeth of gear 110 engage the teeth of gear 111. During the intervals between rotations of spindles 19, the wire is inserted and withdrawn from between lugs 23 and 24 of each spindle. 7

To prevent overthrow of the gear 111, a cam member 114 is secured to the shaft 112 adjacent gear 111. Cam member 114 is provided with two oppositely disposed slots 115 adapted to receive a stop member 116 carried by a reciprocating bar 117 slidably mounted in bearings 118 secured to the side frame of the machine. Bar 117 is reciprocated vertically by a cam 119 on shaft 68 which operates on a roller 120 carried at the lower end of the bar 117. A spring 121 holds the roller 120 in contact with cam 119. The arrangement is such that the stop member 116 is lowered into a slot 115 in member 114 just as

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