Box forming equipment

• US 4,915,678 A
• Filed: 07/27/1988
• Issued: 04/10/1990
• Est. Priority Date: 07/27/1987
• Status: Expired due to Fees

• Current Assignee: Nippon Flute Company Limited 880 Miyamoto Kitanagai Miyoshimachi Irumagun Saitama PREF Japan 354
• Original Assignee: Nippon Flute Company Limited
• Inventors: Morita, Shigeru
• Primary Examiner(s): Schmidt, Frederick R.
• Assistant Examiner(s): Lavinder, Jack W.
• Application Number:
  US07/224,843
• Time in Patent Office: 622 Days
• Field of Search: 493/116, 493/122, 493/123, 493/124, 493/125, 493/126, 493/127, 493/183, 493/453, 493/310, 493/313, 493/316
• US Class Current: 493/116
• CPC Class Codes: B31B 2100/00 Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
• CPC Class Codes: B31B 2120/30 collapsible; temporarily collapsed during manufacturing
• CPC Class Codes: B31B 50/00 Making rigid or semi-rigid containers, e.g. boxes or cartons
• CPC Class Codes: B31B 50/004 Closing boxes
• CPC Class Codes: B31B 50/0044 the boxes having their opening facing upwardly
• CPC Class Codes: B31B 50/06 from stacks
• CPC Class Codes: B31B 50/72 by applying and securing strips or sheets
• CPC Class Codes: B31B 50/78 Mechanically
• CPC Class Codes: B31B 50/80 Pneumatically
• CPC Class Codes: B31B 50/802 for setting-up boxes having their opening facing upwardly

Abstract

A preferred embodiment of the invention comprises a box forming machine operable to raise folded box material to a box frame, and to fold the edges that comprise the box bottom into a bottom area and to tape the folded edges. The forming equipment is equipped with a box material supply that stores folded box stock material. The apparatus withdraws a piece of box material from the box material supply station by means of a vacuum chuck. The box stock material is raised to a box frame by means of a raise guide and further to a bottom folding station that folds the inner box edges which extend in a direction transverse to a taping direction. Outer edges are then folded into the bottom areas along the taping direction and a tape head tapes together the inner edges by means of a tape head drive.

Claims

1. A compact box forming apparatus for erecting from a folded, generally flat, storage condition to a generally rectangular erect condition a box having opposing end walls and opposing side walls and at least opposing bottom end edges and opposing bottom side edges connected to the opposing end walls and opposing side walls respectively and the bottom edges being operable to be folded into a bottom surface of the box with a bottom seam, said box forming apparatus comprising:

a frame;

means connected to said frame for raising a box material from a folded, generally flat storage condition into a generally rectangular shape with at least open, and mutually opposing, bottom end edges and open, and mutually opposing, bottom side edges at a box forming station;

means connected to said frame for folding the open, mutually opposing, bottom end edges toward each other at said box forming station;

means connected to said frame for folding open, mutually opposing, bottom side edges toward each other at said box forming station following folding of the open, mutually opposing, bottom end edges toward each other; and

means connected to said frame for applying box adhering tape onto the box along the bottom seam, said means including

reciprocating tape means for being driven beneath the box with its folded bottom end and side edges positioned at said box forming station and for applying a strip of adhering tape, at said box forming station, said reciprocating tape means beginning movement at an initial position at least partially upon an end wall of the box, said reciprocating tape means continuing movement along a bottom seam extending between the opposing bottom side edges and upon each of the opposing bottom side edges, and completing its movement at least partially upon an opposing end wall of the box to secure the bottom of the box in an erect condition and said reciprocating tape means returning to said initial position.

2. A compact box forming apparatus as defined in claim 1 and further comprising:

means connected to said frame for operably engaging the opposing bottom side edges and directing the opposing bottom side edges away from each other prior to activation of said means for folding the mutually opposing bottom end edges toward each other at said box forming station such that said opposing bottom side edges will not interfere with folding of the mutually opposing bottom end edges toward each other.

3. A compact box forming apparatus as defined in claim 1 and further comprising:

pressure plate means connected to said reciprocating tape means and being carried in advance of a strip of a tape being applied to the bottom the box, said pressure plate means being T-shaped in cross section, having a leg and a normally extending crossing member, and being operable such that the top crossing member of said T-shape extends along inner edge surfaces of the mutually opposing bottom side edges of the box and the leg extends through a seam between the opposing bottom side edges as tape is applied to the outer edge surfaces of the opposing bottom side edges to prevent upward bowing of the box edges as the tape is being applied to the bottom of the box.

4. A compact box forming apparatus as defined in claim 1 and further comprising:

means for driving said reciprocating tape means beneath an erected box positioned at said box forming station, said means for driving including,

a piston and cylinder assembly connected at one end to said frame, and

a link mechanism connected between the other end of said piston and cylinder and said reciprocating tape means which amplifies the driving force of said piston and cylinder assembly.

5. A compact box forming apparatus as defined in claim 4 wherein said reciprocating tape means comprises:

a carrier mounted upon said frame for reciprocation with respect to said frame and box forming station;

means connected to said carrier for mounting and dispensing a spool of box adhering tape;

a first taping arm pivotally connected to said carrier;

a first taping roller pivotally connected to a distal end of said first taping arm for rolling an adhering tape onto at least a portion of the front end wall of the box and the bottom seam of the box;

a second taping arm pivotally connected to said carrier and positioned behind said first taping arm,

a second taping roller pivotally connected to a distal end of said second taping arm to insure adhering contact of the tape onto the bottom seam of the box and at least partially up the back end wall of the box; and

tape cutting means pivotally connected to said carrier between said first taping arm and said second taping arm for cutting a length of tape necessary to close the end of the box as said tape means is driven beneath the box at said box forming station.

6. A compact box forming apparatus as defined in claim 5 wherein said reciprocating tape means further comprises:

a push lever pivotally connected downstream of said second taping arm for ejecting an erected and taped box from said box forming station upon completion of a taping operation and retraction of said tape means from said box forming station.

7. A box forming apparatus as defined in claim 1 wherein said means for raising includes:

a hopper which is slanted down to the direction of a forming station in which more than two boxes may be stacked.