US1921269A - Paper box machine - Google Patents

Description

Aug. 8, 1933. E. G. STAUDE PAPER 130x MACHINE Original Filed marhjo 1924 5 Sheets-Sheet '1 ve M 1L 5 ms W 1 0 n m r v w .m M

f dwi By k-L/( 3- a E. G. STAUDE 1,921,259:

PAPER BOX MACHINE.

Original Filed March 10, 1924 5 Sheets-Sheet 2 FIG 2 Inventor l4 1 tom eys A Aug. 8, 1933. E. G. STAUDE PAPER BOX MACHINE 5 Sheets-Sheet 4 Original Filed March 10, 1924 m M m w m m w 1933- E. G. STA'UDE 1,921,269

PAPER BOX MACHINE Original Filed March 10, 1924 Sheets-Sheet 5 M I w 1 Inventor Attorneys dwg kiaude 5*! MMM Patented Aug. 8, 1933 UNITED STATES PATENT OFFICE Application March 10, 1924, Serial No. 698,098 Renewed June 13, 1932 9 Claims.

will be adjustable crosswise of the machine, so.

that if for any reason the threaded shafts or bars on which the frames are supported, not be parallel to each other, or if one of them be slightly bent or sprung, the connection at one end being either a movable box or a link, will accommodate itself to the different distances without binding or jamming.

A further object is to provide a frame construction so that the operator may have free and easy access to the delivery end and not be required to reach over a large part of the machine, especially when same is set up for running small work. I

A further object is to provide a frame which shall be strong, rigid and easy to machine and assemble.

All of the above being an improvement over my Patent #1,104,013, dated July 21, 1914.

Other objects of the invention will appear from the following detailed description.

The invention consists generally in the constructions and combinations hereinafter described and particularly pointed out in the claims.

In the accompanying drawings, forming part of this specification,

Figure 1 is a plan view of a machine embodying my invention;

This view shows the blank in the hopper of the feeder in the fia that is, open readyto be folded as it passes through the machine. It also shows the various blanks ahead and indicates clearly that the range of the machine is not diminished by the fact that the machine is narrower at the delivery end than at the feeder end, and for the reason that the widest blank is always folded to one-half its size at the delivery end and that the machine may. well be made narrower by a simple off-set at the forward end totake in the flat blank without in any way affecting its range.

Figure 2 is a view similar to Figure 1 with the blanks removed and the frames adjusted for a box of different size;

' Figure 3 is a vertical section on the line of Figure 2;

Figure 4 is a side embodyin my invention;

elevation of the machine Figure 5 is a detail of the right-hand folder, frame showing the compensating arrangement at the forward end of the folder frame to permit the variation of the distance between thesupporting screw shafts, as the folder frame is adjusted from one side of the machine to the other;

Figure 6 is a similar view to Figure 5, except that it shows the left-hand folder frame and its compensating arrangement to permit variations in the distance of the shaft which supports the frame during its travel in adjustment across the machine;

Figure '7 is a cross-section on the line 7-7 of Figure 2, looking in the direction of the arrow;

Figure -8 isa sectional view on the line 8-8 of Figure 2;

Figure 9 is a section of the telescoping stacker I supports on section line 9- -9 of Figure 3.

right-hand folder section 15, both adjusting screws being connected to each other through a pair of bevel gears and a shaft 14, as shown in Figure 3, and the crank arrangement connected to the extension 15 shown in Figure 2, ad-

justs the folder frames crosswise of the machine to the desired position. Similar shafts 14 and 14. connect the screw shafts 9 and 12 and the screws 10 and 11, respectively, as shown in Figure 3.

The left-hand folder section is is similarly mounted on the cross adjusting screws 9 and 12.

The auxiliary center track (not shown) is mounted on the cross adjusting screws 10 and 11.

By referring to Figure 3, it will be noted that the various screws are arranged on difierent planes to each other.

This feature is different from that shown in my former application, above noted, and is for the purpose of connecting one adjusting screw with its coacting member below the other instead of side by side, and for the purpose of conserving space, so the frame sections need not be any greater distance apart than is absolutely necessary. I am thus able'to economize in the amount of floor space required for the machine,

apart by the spreader bars 80 and by making that part of the machine frame narrower where the blanks are handled after folding and when they require less room, I am able to make the mechanism more compact and permit the operator to stand outside the frame and reach any of the moving parts and thereby avoid the necessity ofgetting inside the frame which is he frequently finds it necessary to do in machines of the conventional width or where the same width of frame is maintained from the receiving to the discharge end.

In the machine of my Patent No. 1,104,013, the shafts 5, 8 and 15, and '7, 14 and 4 were horizontally arranged, see Figure 3, and sprocket chains were used to connect the shafts. This complicated the assembly of the parts, and was less compact than the present arrangement in which the shafts are arranged in upper and lower adjacently disposed horizontal pairs, the members of which are spaced longitudinally and in which the members of the uppermost pairsare disposed inwardly, with respect to the corresponding members of the lowermost pairs and there-ath'acent, and in which bevel gear driving means is used for driving the members of respective pairs, including a shaft which extends horizontally and longitudinally between the pairs.

When three pairs of shafts are used, as shown in Figure 3, the members of the pairs at higher levels lie inwardly with respect to the corresponding members of the pair at the next lower level, so that a line drawn through the centers of the groups of members at either end, slants upwardly in a direction toward the corresponding group at the opposite end.

The right-hand folder section 15 and the left-hand folder section 16 carry the usual suitable folding mechanism, including a top carrier belt 17 and a top carrier 18. The lower carrier belt is indicated by numeral 17.

Since these may be and are similar to the mechanism for the same purpose described in my previous application, no detailed reference is made to these parts.

The usual feeder 19, having the feed shaft 20 and the feed wheels 21, is also provided.

Since it is the purpose of this invention to provide a very narrowframe at the back, so the operator may not be obliged to lean over when adjusting the machine in the center or in the rear, and since the blank in the frame at the forward end is twice as wide as when folded at the rear, it follows that in order to connect the wide front part to the narrow rear, some off-set arrangement has to be provided.

In orderto compensate for this condition, I simply attach a bracket 22, as shown in Figure 2 and Figure 7, to overhang and carry the lefthand outside bearings 23 of the feeder.

The glue pot 24 is also arranged on the small platform 25, so it may be closely adjusted to take the largest blank, as shown in Figure 1.

The feeder is driven by the friction wheel 26, co-acting with the friction disk 27 on the shaft 28, and the gearing for the forward end of the machine is placed on the outside of the frame 1 in the gear box 29, and the gearing for the rear part of the mechanism is placed on the outside of the frame 1 in the gear box 30, the two being connected bythe shaft 28 and driven by the clutch pulley 31.

The screw shafts, for shifting the folder frames from side to sideof the machine are arranged in groups as indicated in Figure 2 at the opposite ends of the folder frames. Sometimes, these screw shafts become bent or distorted or the bearings slightly worn, or for some other reason,

there may be a slight variation in their parallel relation in the machine sufiicient to cause a binding of the folder frames as they are moved back and forth. I compensate for this possible difllculty by supporting the screw shafts at one end of the folder frames upon links 8 and 9; these links allowing the shafts supported thereby to sway or oscillate laterally and adjust themselves to any slight variation in their parallel relation due to springing of the shafts, distortion, or for any other cause, and prevent the binding or jamming of the folder frames in their free- (10111 of adjustment across the machine.

The preferred manner of mounting these links supporting the screw shafts is illustrated in Figures 5 and 6. Only one group of the screw shafts need be mounted in this way, those at the other ends of the frame being supported in stationary bearings in any conventional manner.

Referring to Figure 3, it is evident that if, for

any reason, shafts or supports 8 and 13 for the right-hand folder frame are not in parallel relation, or if the supports 9 and 12 of the left-hand folder frame are not in parallel relation, and

if an attempt were made to adjust these frames crosswise of the machine on their respective supports, jamming would occur and proper adjustment would be impossible. Disalignment of either pair of supports 813 or 9-12 would mean that their axes were divergent or convergent in one direction, or another. It sometimes happens that one or both members of the pairs of shafts are bent in which case, proper transverse adjustment is impossible. For this. reason, referring to Figures 5 and 6, the nut 8 on the threaded shaft 8 has pivoted thereto a link 8 which is, in turn, pivoted to the right hand folder frame as at 8. By this means, if such disalignment of the shafts .8 and 13 should take place and when transverse adjustment of the frame was made, the nut can follow any inequalities of the shaft because of the link connection 8". A similar yielding connection is provided, see Figure 6, for the shaft 9 by means of the pivoted link 9*, one "end of which is pivoted to the nut 9 and the opposite end as at 9 to the extension 9 of the left-hand folder frame.

There is no intention, however, to limit the invention to the exact construction shown, because in some machines, the shafts 8l3 and 9-12 are not threaded shafts but merely form supports along which {the folder frames are slidable. In this instance, other means for repectively and separately moving the frames are provided.

It willbe noticed that the connection 13 between the nut or slidable means .13, see Figures 1 and 5, and one of the frames is rigid, similarly for the connection 12 between the nut 12 and the left-hand folder frame, see Figure 6.

At the delivery end, the right-hand folder section 15 has a hollow extension 32 to receive the grooved shaft 33, on which is mounted the righthand stacker mechanism 34. (See Figure 3).

On the left-hand folder section 16 is a similar extension 35 for receiving the grooved shaft 36.

Said grooved shaft also supports the stacking mechanism 34 on the left-hand side.

At the rear of the member 35 is a projection 36 which supports the spiral lifting arrangement 37 (see Figure 8), and at the rear of the member 32 is a projection 38 for supporting the righthand spiral lifting arrangement 39. ure 3).

As shown in Figures 3 and 8, the purpose of the grooved shaft 36 telescoping in the member and secured in position by the clamping nut 40, is to allow this shaft to be pulled out of its telescoping member for long boxes and pushed in the required distance for boxes 2" or 3" long, thus making the machine more convenient to operate.

With this arrangement the operator need not lean over to reach the small blanks, but the machinery may be narrowed laterally by the off-set frame and shortened longitudinally by the telescoping feature at the stacker end, and easily and quickly adapted for holding blanks of different sizes.

Referring to Fig. 3, the upper folder belt shaft of the device is indicated at 40 and the lower folder belt shaft is indicated at 41. The folder belts are respectively indicated at 42-43 and the corresponding rolls or pulleys at.4445. The upper squeeze roll is indicated at 52 and the lower squeeze roll at 53. These squeeze rolls are for flattening the blank after folding and for pressing the glued parts together, to obtain (See Fig- -intimate adhesive contact. As clearly shown in the drawings, the squeeze rolls have a length substantially less than the width of the largest unfolded blanks the machine will accommodate. The stacker belt driving shaft is indicated at 56.

Between the shafts 40-41 and 52-53 there is ordinarily placed a counter mechanism which has not been shown in the drawings. Such an arrangement is shown in -my prior Patent .No. 1,154,451 and is common practice. The squeeze rolls, counter mechanism, and other shafts are ordinarily driven from gearing contained in the boxing 30, see Figure 1, this gearing being that ordinarily used, and being well known to those skilled in the art.

I claim as my invention:

1. A paper box machine having folder frames and means whereon said frames are adjustably supported, said means being mounted to yield transversely of their longitudinal axes to compensate for any variation in their relative parallel position.

2. In a paper box machine, folder frames, threaded shafts whereon said folder frames are mounted, said shafts being arranged in groups and the shafts of one group being mounted to yield transversely thereof to compensate for any tension provided at the rear end thereof, a.

grooved shaft adapted to slide in said extension and having means for looking it therein, a stacking mechanism supported by said shaft, the telescoping relation of said extension and said shaft allowing the stacking mechanism to be adapted for box blanks of different sizes.

6. In a paper box machine, right and left hand folder sections having hollow extensions, grooved shafts slidable in said extensions, stacker mechanisms mounted on said shafts, and adapted for adjustment therewith to compensate for folded blanks of different sizes.

'7. A paper box machine having right and left hand folder frames and transversely arranged screw shafts for supporting the frames and moving them across the machine, each frame having a pair of shafts, the members of which pairs are spaced longitudinally and lie one above the other, the members of the uppermost pair being disposed inwardly with respect to the corresponding members of the lowermost pair and thereadjacent, and bevel gear driving means for respective pairs of shafts for operating them in unison including shafts which extend horizontally and longitudinally of the machine adjacent one another and one above the other.

8. In a box machine, a feeding section for receiving unfolded blanks, a foldingsection for folding such blanks into knock-down form of substantially-less width than that of the unfolded blanks, and squeeze rolls having a length substantially less than the width of the largest unfolded blanks for receiving the folded blanks from the folding section to compress the same.

9. A box machine having a feeding section for receiving unfolded blanks, a folding sectionhaving a width substantially less than that of the feeding section for folding the blanks into knockdown form of substantially less width than that of the unfolded blanks, means for applying glue to the blanks prior to their folding, and squeeze rolls having a length substantially less than the width of the unfolded blanks for receiving the unfolded blanks from the folding section to compress the same, said feeding section projecting laterally beyond the folding section at one side of the machine and said glue means being located at the corner thus formed between the folding and feeding sections.

EDWIN G. STAUDE.

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