US1390059A

US1390059A - Box-sealing machine

Info

Publication number: US1390059A
Application number: US298708A
Authority: US
Inventors: Peet William
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-05-21
Filing date: 1919-05-21
Publication date: 1921-09-06
Anticipated expiration: 1938-09-06

Description

w. PEET.

BOX SEALING MACHINE.

APPLICATION FILED IIIAYZI, I919.

139G 59, Patent swam. ,JIIIZL 4- SHEETS-S EH 1.

WITNESS I IN VEN TOR ATTORNEYS W. FEET.

BOX SEALING MACHINE.

APPLICATION FILED MAY21,1919.

Patented Sept. 6 192 31.

. wwm I E WITNESS INVENTOR j @m mil mm l ei j; A TTORNE YS g w is k cmj ZUI Q {SEEM m@ Q ini mm W. FEET.

BOX SEALING MACHINE.

APPLICATION FILED MAY 21, 1919. L39fl59 Patentedfiept. 6, 1921.

4 SHEEISSHEEI' 3.

an a,n

WITNESS INVENTOR 5 I /////am Pee? ATTORNEYS W. PEET.

BOX SEALING MACHINE.

APPLICATION FILED MAY 21, 1919.

Patentedsept. fi, 1921-0 4 SHEEIS-SHEET 4.

WITNESS INVENTOR b A TTORNEY.

tnnren stares rarenr mien rm'r, or KANSAS crrr, meson-a1.

BOX-SEAEWG MACHINE.

Specification of Letters Patent.

Patented Sept. 66, 1921.

.tlppltcation filed ma 21, 1919. Serial No. 298,708.

To all whom it may concern:

Be it known that 1, WILLIAM Pam, a citi the time that the adhesive is setting.

Another object of the invention is to provide a box sealin machine which may be adjusted for sealing boxes of diderent heights.

A further object of the invention is to. provide means for feeding the boxes to which the adhesive has been applied, to the pressing and holding means'and to provide box operated means for throwing the feeding mechanism into operation and further means for stopping the feeding mechanism after the box has been placed in the pressing and holding means.

The invention possesses other advantageous features, some of which, with the foregoing, will be set forth at len th in the following description, where l s all outline in full, that form of the invention which I have selected for illustration in the drawings accompanying and forming part of the present specification. in said drawings 1 have shown one specific form of my inven tion, but it is to be understood that I do not limit myself to such form, since the invention, as expressed in the claims, may be embodied in a plurality of forms.

Referring to said drawings:

Figure 1 is a side elevation of the front end of the machine, showing the feeding mechanism, the feeding mechanism controlling means and the forward end of the pressing and holding means.

Fig. 1 is a side elevation of the rear end of the machine.

Fig. 2 is a plan or top view of that portion of the machine shown in Fig. 1.

Fig. 2 is a plan View of the continuation of the pressing and holding means.

Fig. 3 is a cross section through the pressing and holding means, taken on the line 3-3, Fig. 1.

Fig. 4 is a plan view of the feed control means. I

The machine of my invention is particularly adapted for use in sealing fiber, cardboard, straW-board, corrugated board and other boxes having sealing end flaps and side flaps which are folded into position and adhesively secured in position. The end flaps are usually first folded into position on the filled box and the upper surfaces thereof coated with glue or other adhesive and then the side flaps are folded into position in contact with the glued surfaces of the end flaps and then held firmly and pressed tightly against the folded end flaps until the glue sets.

The machine of my invention comprises a conveyor comprising a plurality of parallel free rollers 3 over which the filled and unsealed boxes travel from the packing station to the sealing machine. From the conveyer the boxes t are moved to the feeding apparatus which is disposed-adjacent the end of the conveyer. The feeding apparatus comprises a table composed of a plurality of parallel free rollers 5, on which the unsealed oxes are set. The end fiaps dof the box are then folded down and the upper surfaces thereof coated with glue or other adhesive and then the side flaps 7 are folded down into engagement with the glued surfaces. The box is then ready to be fed into the present instance the side flaps 7 are of slightly less width than one-half the box, so that when folded, the adjacent ends of the side flaps are slightly spaced apart.

The feed table rollers 5 arejou-rnaled in a suitable frame 8, and secured to the opposite ends of the shafts of the front and rear rollers 5, respectively, are sprockets 12 and 13, preferably disposed on the outside of the frame. Engaging each pair of sprockets 12-13 is an endless drive chain 14, there being one chain 14 on each side of the frame. The chains are driven by the sprockets 15, secured to the shaft 16 journaled below the rollers 5, which shaft is driven by the chain 17 engaging the sprocket 18 on the shaft 16. The chain 17 is driven by the sprocket 19 secured to the shaft 21, which latter shaft is driven through the clutch 22 by the belt 23 connected to the motor 24 or other source of power. The upper run of the chains 14.- moves in a plane above the upper surfaces of the rollers 5 and these chains are connected by pushers, preferably in the form of one or more rollers 25 which extend transversely across the feed table. The rollers 25 are mounted at their opposite ends in brackets 26 secured to the chains and to prevent the chains from being unduly kinked while the pushing roller is advancing a filled box, the brackets 26 are provided with backward extensions 27 which bear against the chains at a distance behind the pushers, thereby causing the axis of the pusher roller to pivot, as it were, at a point behind the roller and thereby prevent any undue kinking or distortion of the chain due to the load being pushed. In the machine shown in the drawings, I have shown two pusher rollers, but I do not\ limit myself to the'u'se ofsuch number of pusher rollers. 1

The flap pressing and box holding mechanism is arranged at the discharge end of the feed table and the pusher rollers move the boxes directly into the pressing and hold-- ing mechanism. The operation of thefeeding chains 14 is intermittent and box operated means are provided for throwing the chains into operation, to cause the' pusher to move the box from the feed table. Journaled at one side of the feed table frame, is a vertical shaft 28, to which is fixed anarm 29 which projects over the feed table into the path of a box moving there'over, Secured to the shaft 28 is a lever 31 which is mediately connected to the clutch ship er head 32 by the link 33 and lever 34. movement of the shipper head 32 caused by the deflection of the arm 29 'by the box, thrdws the clutch in engagement; causing the chains 14 tobe driven to ash the box into the pressing mechanism. The operator after he has applied the glue and folded the flaps, pushes the box against'the'arm 29, throwing the feed mechanism into operat1on..

After the box has been discharged from the feed table, the pusher roller moves into contactwith a lever 35 arranged adjacent the discharge end of the table and in the path of the pusher roller. The lever 35 is pivoted to the frame of the pressing mecha-.

msm and is connected by a link 36 with a' bell crank 37 which in turn is connected to the bell crank 38 by the link 39. The bell crank 38 is connected to the lever 34 by the link 41 and the lever 34 is connected to the clutch shipper head 32 as heretofore set forth. The movement of the lever 35 by the pusher roller moves the shipper head in a direction to disengage the clutch, thereby halting the movement of the feeding chains.

From the feed table, the box is fed into the pressing. and holding mechanism. This mechanism comprises a frame having two sets of freely rotatable rollers 42-43 journaled thereon, the rollers being horizontally disposed and parallel and the two sets being spaced apart vertically, so that the box passes between the upper and lower rollers. The lower rollers 42- are journaled on shafts 44 secured to the angle irons 45 arranged at opposite sides of the frame. The upper rollers 43 are journaled on shafts 46 which are attached to the plungers 47 bearing in the channels 48 and pressed downwardly by the springs 49, so that the upper rollers are yieldingly mounted. and press against the folded side flaps 7. The upper rollers 43 are a tably supported adjacent their upperends on brackets 54 secured to the channels and are provided at their upper ends wlth hand wheels 55, whereby the spindles may be rotated. Rotation of the s indles causes the plunger carrying channe to be raised or lowered, thereby varying the vertlcal distance between the upper and lower sets of rollers. Vertical guide rods 56, secur the frame at intervals and engaging in bearings 57 on the angle iron, guide the channels in their vertical movement and hold the channels in proper position transversely with respect to the frame.

Means are also provided for preventing any flattening or distortion of the box due to the sealing pressure of the rollers and to prevent any slip of the side flaps over the end flaps before the glue has set. Arranged at the forward end of the pressing apparatus and on each side thereof, are a plurality of spaced rollers 58, which engage the sides of the box adjacent the top, to hold the sides firm against the sealing pressure. The rollers 58 are arranged relatively close together and are journaled in frames 59 arranged on opposite sides of the box runway. The frames 59 are supported on a plurality of adjusting screws 61 threaded through the brackets 62 secured to the channels. By

'movingthe screws 61, the spacing between of different widths. The frames 59 are connected to the channels 48, so that .their vert1cal position with respect to the upper rolls remains fixed.

At the forward end offthe machine, the

rollers

42 and 43 in each set are arranged c ose together, so that'a relatively uniform anism control means arranged over the feed table in the path of the box. 1

naedoee rollers by the feeding mechanism, the entering box serving to push the others ahead of it.

I claim: U

1. An apparatus for sealing boxes, comprising pressing means through which the boxes pass, mechanism for feeding boxes into the pressing means, and means operated by the box for throwing the feeding mechanism into operation.

2. An apparatus for sealing boxes, comprising pressing means, a feed table arranged in front of the pressing means, mech anism for moving boxes over the feed table and into the pressing means, and means adapted to be engaged by a box on the feed table for throwing the moving mechanism into operation.

3. An apparatus for sealing boxes, comprising box pressing means, a feed table arranged in front of the pressing means, a

pusher arranged to move over the feed table to push the box into the pressing means, mechanism for moving the pusher and mech- 4. An apparatus for sealing boxes, com- 1 prising box pressing means, a feedtable arranged in front of the pressing means, a pusher movable over the feed table to push the box into the pressing means, mechanism for moving the pusher and control means adapted to be engaged by the pusher for throwing the pusher moving mechanism out of operation.

5. In an apparatus for sealing boxes, a feed table, a pushermovable over the feed table, pusher moving mechanism, means disposed over the table for throwing the mechanism into operation, and means arranged'to be engaged by the-pusher for throwing the mechanism out of operation.

6. Inan apparatus for sealing boxes, a plurality of parallel rollers forming a feed table, a pusher arranged to move over the table to discharge the box therefrom, power driven means for moving the pusher, and means operated by the manual movement of a box over the table for throwing the power driven means into operation.

7. Id an apparatus of the character described, a feed table, a pusher arranged to move over the table to discharge the box therefrom, power driven means for moving the pusher, and means operated by the manual movement of a box over the table for. throyvmg the power driven means into operation. I

8 In an apparatus of the character described-,- a feed table, a pusher arranged to move over the table to discharge. the box therefrom, power driven meansfor moving the. pusher, means operated by the manual movement of-a box overthe table for throwmg the power driven means into operation and a device adapted to be engaged by the pusher after the box has been discharged,-'

for throwing the power driven means out,

of operation..

9. In an appartus of the character described, a plurality of parallel rollers comprising a feed table, endless chains arranged T at opposite sides of the table, a pusher se-,

cured to said chains and adapted to move over the table to discharge a box therefrom,

a driving sprocket engaging said chains, a shaft adapted to be continuously driven from a source of power, a clutch between said shaft and sprockets, means operative bv a manual movement of a box over the I table for engaging said clutch, and means. I

operated by contact with the pusher after the box is discharged, for, disengaging said clutch.

10. In an apparatus of the character de posed parallel rollers mounted on said frame, a second framearranged above said first frame, means for ralsingand lowering said second frame, vert1callyd1sposedspr1ng pressed plungers mounted in said second frame, a set of horizontally disposed parallel rollers mounted in said plungers and spaced from said first set forming therebetween a box passageway, and vertically disposed parallel rollers carried by said second frame and arranged on both ides of said passageway, adapted to eng ge the upper portion of the box sides and to maintain a substantially fixed relation vertically with respect to the upper set of said horizontal rollers.

12.;An apparatus for sealing boxes, comprising a box passageway including a set of yieldingly mounted parallel rollers adapted to press against one of the box ends during the passage of the box therethrough, and means adjustable in a plane parallel to the sides of the box adapted to engage the box side adjacent the end that is being sealed. V A

13. An apparatus for sealing boxes, comprising a frame, a set of horizontally disposed parallel rollers mounted on said frame, a second frame arranged above said first frame, a set of horizontally disposed parallel rollers yieldingly'mounted on said way adjustable in a plane parallel to the said sides of the boxes and adapted to engage the upper ortion of the box sides. l4. apparatus for sealing boxes, comprising a frame, a set of horizontally dis posed parallel rollers mounted 'on said frame, a second frame arranged above said first frame, means for raising and lowering second frame, vertically disposed spring ressed plungers mounted in said second rame, a set of horizontally disposed parallel rollers mounted in said plungers and spaced from said first set forming therebetween a box passageway, and means arranged on both sides of said passageway, 1

supported on' one of said frames and adjustable ina plane parallel to the sides of the boxes adapted 'to engage the upper portion of the box sides. 7

15. An apparatus for sealing boxes, comprising a box passageway, including means adapted to press against one of the box ends during the passage of the box therethrough, and means adjustable in a plane parallel to the sides of the box adapted to engage the box side adjacent the said end.

In testimony whereof I havehereunto set my hand at Oakland, California, this 26th day of April, 1919.

WILLIAM PEET.

In presence of L. L.- M. SALSBURY, J. B. GARDNER.