US3648432A - Continuous tier - Google Patents

Continuous tier Download PDF

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Publication number
US3648432A
US3648432A US1441A US3648432DA US3648432A US 3648432 A US3648432 A US 3648432A US 1441 A US1441 A US 1441A US 3648432D A US3648432D A US 3648432DA US 3648432 A US3648432 A US 3648432A
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United States
Prior art keywords
bag
strand
neck
gathered
travel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US1441A
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English (en)
Inventor
August R Zellmer
John D Tetrick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Doboy Packaging Machinery Inc
Original Assignee
Domain Industries Inc
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Filing date
Publication date
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Application granted granted Critical
Publication of US3648432A publication Critical patent/US3648432A/en
Assigned to NORDSON CORPORATION, A CORP. OF OHIO reassignment NORDSON CORPORATION, A CORP. OF OHIO CERTIFICATE BY THE SECRETARY OF STATE OF OHIO SHOWING MERGERS AND CHANGE OF NAME FILED 3-29-79 EFFECTIVE 3/3/79 AND 10/24/79 EFFECTIVELY 10/29/79 RESPECTIVELY Assignors: DOMAIN INDUSTRIES, INC., A CORP. OF WISCONSIN, (MERGED INTO) NOR-DOM CORP. A CORP. OF OHIO, (CHANGED TO) DOMAIN INDUSTRIES, INC., A CORP. OF OHIO (MERGED INTO)
Assigned to DOBOY PACKAGING MACHINERY, INC., 215 NORTH KNOWLES AVENUE, NEW RICHMOND, WI 54017 A CORP OF DE reassignment DOBOY PACKAGING MACHINERY, INC., 215 NORTH KNOWLES AVENUE, NEW RICHMOND, WI 54017 A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: NORDSON CORPORATION, A CORP OF OH
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/04—Applying separate sealing or securing members, e.g. clips
    • B65B51/08—Applying binding material, e.g. to twisted bag necks

Definitions

  • ABSTRACT A bag closer having V-belts gripping and carrying the bag into 52 us. (:1 ..53/135 SeParable gathering Pocket and against a length ftwistable [51] Int Cl i B, 51/08 strand and then releasing the bag; pushers compacting the gathered bag neck and moving the gathered bag neck throu [58] FieldotSearch ..53/135, 138 198 the separable pocket and against and past a flipper which swings the trailing ends of the strand into a continuously [56] References Cited revolving twister hook which twists the strand ends together UNITED STATES PATENTS while the bag neck continues to move along a linear path.
  • the bag neck encounters the operating cam portion of a flipper which is swung as the bag neck is pushed by, so as to swing the trailing ends of the twistable strand off to one side and into the twisting hook while the gathered bag neck continues to travel on by and away from the twisting hook.
  • FIG. 1 is a general perspective view of the invention.
  • FIG. 2 is a slightly enlarged elevation view with certain of the bagguiding shrouds removed for clarity of detail.
  • FIG. 3 is an enlarged detail section view taken approximately at 3-3 in FIG. 2.
  • FIG. 4 is an enlarged detail section view taken along a broken line as indicated at 4-4 in FIG. 2.
  • FIG. 5 is a detail view taken approximately at 5-5 in FIG. 7.
  • FIG. 6 is an enlarged detail elevation view of a portion of the operating mechanism on the rear side of the mounting panel.
  • FIG. 7 is an enlarged detail section view taken approximately at 77 in FIG. 2.
  • FIGS. 8A, 8B and 8C are detail views showing the several stages of operation of the flipper together with the twisting hook.
  • the bag closer is indicated in general by numeral 10 and works in cooperation with a conveyor C which carries bags thereon in lying position with the closed ends of the bags being disposed adjacent the edge Cl and the open ends of the bags being adjacent the end edge C2 with an ample portion of the open end of the bag extending beyond the edge C2 to be received between the bag guides 11 so as to engage the bag straightening and flattening brushes 12 which are turning at high speed in the direction of the arrows as indicated.
  • the brushes 12, together with the guides 11, orient the flattened bag neck to be received between V-belts 13 and 14 which are continuously traveling in the direction of arrow B.
  • the V-belts 13 and 14 are traveling at identical speeds and are driven from identically sized pulleys 13a and 14a; and the V- belts are also guided along the bag gripping run by idlers 13b and 14b.
  • the belt 13 diverges away from the belt 14 at the idler 13b so as to release the bag at that location.
  • a pair of roller chains 15 and 16 extend substantially parallel to the bag carrying and gripping runs of V-belts 13 and 14 and are trained around idler sprockets l7 and drive sprockets 18 which are mounted in side by side relation on shaft 19 which also mounts and drives the V-belt driving pulley 14a.
  • the linear speed of the roller chains 15 and 16 is greater than the linear speed of the V-belts.
  • the roller chains 15 and 16 carry projections or bag pushers 15a and 160, respectively, which are disposed side by side and which are spaced along the chains 15 and 16 from similar pushers 15a, 16a to synchronize with the flights F on the conveyor C so as to engage the sequence of bags traveling along the conveyor.
  • the speed of the V-belts 13 and 14 is substantially the same as the speed of conveyor C, and the speed of chains 15 and 16 is somewhat greater than the speed of the V-belts.
  • Driving power is applied to the shaft 19 and to shaft 20 mounting pulley 13a from a source of power at the rear side of the mounting plate 21.
  • the bag gripping and conveying runs 13 and 14 of the V- belts carry the flattened bag into a gathering pocket 22 which is defined between a stationary guide block 23 rigidly mounted to the frame plate 21, and a swingable guide 24 mounted on a rocker shaft 25 which extends through bearings on the frame plate 21 and to the rear side thereof for swinging or rocking a release bar 26 for a one cycle clutch as seen in FIG. 6.
  • the guides 23 and 24 cooperatively define the opposite sides of the gathering pocket 22; and. the oblique edge 22a of the guide 24 converges toward the edge of guide 23 to define an apex at the normally closed end of pocket 22.
  • the swinga ble guide 24 normally bears against the stationary guide 23, but may be swung in the direction of arrow G to open the normally closed end of the pocket to permit passage of a gathered bag neck therethrough.
  • the swingable guide 24 is normally maintained in the position shown in FIG. 2 and is returned thereto by a spring 28 acting through lever arm 28a as seen in An elongate bar 23.1 forms the leading end of guide 23, and the lower edges thereof are coextensive for holding the bag downwardly and in front of the pushers 150.
  • Bar 23.1 though normally stationary, is mounted on pin 23.2 in guide 23 to permit the bar 23.] to swing upwardly in the event of a jammed bag.
  • Aninterlock switch 23.3 is operated by feeler 23.4 which senses upward swinging of bar 23.] and will stop the machine.
  • Both of the stationary and movable guides 23 and 24 have strand-receiving openings 23a, 24a tranversely therethrough and intersecting with the gathering pocket 22 for receiving successive lengths Lof twistable strand S from a stationary guide 29 affixed on the frame plate 21.
  • the stationary guide 29 also has a strand-receiving opening 29a therethrough and an anvil cutting edge 30 to cooperate with a slidable blade 31 for severing successive lengths L of the strand.
  • a flipper 32 Adjacent the guide 24 is a flipper 32 swingably mounted on a pivot 33.
  • the flipper 32 has a cam portion 34 normally immediately below the guide 23 to be engaged by a gathered neck pushed along the guide 23 by the pushers 15a, 16a so as to swing the flipper 32 into an upright position as seen in FIGS. 8A, 8B and 8C so that the rearwardly extending or trailing end portions of the length L of strand are swung off to one side for engagement with the continuously operating twisting hook 35.
  • the guide 23 is slotted at 23b to receive the flipper 32 and the twister book 35.
  • a stationary pin 36 extends across the slot 23b of guide 23 to engage the juxtaposed ends of the length L of the strand as they are swung to the side by the flipper 32, substantially as illustrated in FIG. 8B so as to assure that the two ends of the length of strand are lying against each other as they approach the twister hook 35
  • Another short stationary pin 37 is mounted on the front side 23b of the stationary guide and projects toward the twister hook mounting shaft 38 for engaging the ends of the length of twistable strand after the strand has been picked up by the twister hook and twisting is commenced.
  • the pin 37 requires that the ends of the length of twistable strand pass between the pin 37 and the twister hook 35, thereby assuring that the strand is twisted as the twister hook is revolved. As a result the twistable strand tightly fixes the gathered bag neck in closed condition.
  • the twister hook shaft 38 is driven from a gear box 39 which is connected directly to a continuously operating drive motor 40 on the frame plate.
  • the twister hook shaft 38 extends into the slotted portion 23b of the guide 23 and an additional slot 230 is provided in the front web 23b for receiving the ends of the twister hook 35.
  • the shaft 19 also carries a number of large rigid discs 41, 42, 43 and 43.1 which lift the gathered and tied bag neck away from the pushers 15a, 16a after the twistable strand has been twisted onto the bag neck.
  • the chain 16 lies between the discs 42 and 43 and is mounted on the drive sprocket 18 therebetween, and the twisted strand passes over the space between the discs 41 and 42 as the conveyor C continues to carry the bag away.
  • the strand S is supplied from a spool 45 rotatably mounted on a bracket attached to the frame plate 21, and a guide sheave or pulley 46.
  • the strand S is guided through a stationary sleeve 47 toward the opening 290 in the stationary guide 29.
  • a hard rubber idler roller 48 is journaled in a suitable bearing on the frame plate 21 adjacent the sleeve 47 and opposite and intermittently rotatable drive wheel 49 mounted on a shaft 50 which is driven from the one revolution clutch 27.
  • the drive wheel 49 also mounts a roller 51 for intermittently engaging and bearing against a cam surface 52 of the blade mounting arm 53 which is swingably mounted on the frame plate 21 at mounting pin 54.
  • the mounting arm 54 has an opening 53a therein wherein the roller 51 is permitted to revolve, and the cam surface 52 defines one side of said opening 5311 so that, as the strand-driving wheel 49 revolves through a single revolution for each cycle of operation, the roller 51 will operate against the cam surface 52 and swing the arm 53 to the left as seen in FIG. 2, so as to move the blade 31 across the anvil edge 30 of the guide 29 for severing the strand S.
  • the input shaft 27' of the one revolution clutch is continuously driven in conjunction with the continuous driving of shafts l9 and 20 by the chain sprocket 27a.
  • the one revolution clutch 27 applies power to the shaft 50 when the member 26 is swung off the obstruction 27b so that one revolution of the shaft 50 is made, and when the single revolution is completed, the rotation is stopped again by the member 26.
  • the single revolution clutch illustrated is mechanically controlled, a suitable single revolution clutch which is electrically controlled may be substituted.
  • the strand-driving wheel When the one revolution clutch 27 is in its normal and stationary position as illustrated in FIG. 6, the strand-driving wheel is in stationary position, illustrated in FIG. 2, wherein the peripheral surface 49a thereof has one end almost engaging the twistable strand S, which is at that instant extending 3 downwardly through the guides 22 and 23 and across pocket 22.
  • the wheel 49 When the bag, travelling through pocket 22, swings the guide 24 downwardly, the wheel 49 is started through its one complete revolution for that cycle, whereupon, the cam 51 operates to move the arm 53 and blade 31 to effect severing the strand S, to permit a length L thereof to be carried along with the gathered bag neck.
  • the peripheral surface 49a will engage the strand S and pinch the strand against the wheel 48 to deliver another length of strand downwardly through the openings 23a, 24a for the next cycle of operation.
  • the top end of a filled bag passes between the belts l3 and 14 and into the gathering pocket 22. Substantially as the leading edge of the bag is being gathered in the pocket 22, the pushers 15a, 16a on the chains 15 and 16 overtake the trailing edge of the bag and push this trailing edge into the gathering pocket 22 so as to completely gather the bag neck and compact the gathered bag neck.
  • the pushers 15a, 16a acting on both sides of the bag neck, immediately adjacent the guides 23, 24, continue to move the gathered bag neck along the guide 23 and cause a downward swinging of the guide 24 and a slight rocking of shaft 25.
  • the rocking of the shaft 25 releases the one revolution clutch 27 so that the shaft 50 is driven, thereby turning the strand driving wheel 49 as described above.
  • the gathered bag neck being moved by the pushers 15a, 16a toward the flipper 32 will engage the cam portion 34 thereof and cause swinging of the flipper, successively through the positions shown in FIGS. 8A, 8B and 8C.
  • the trailing ends of the length of twistable strand swing upwardly and are picked up by the twisting hook simultaneously and passed beneath the pin 37 as the twisting hook winds the ends of the strand around each other for afflxing the gathered bag neck in closed condition.
  • the gathered bag neck continues to move along the guide 23 under influence of the pushers 15a,
  • the flipper 32 is returned downwardly by spring 320 as soon as the bag passes by so it can be prepared to receive another bag neck immediately.
  • the filled bags are supported on the conveyor C and the open end of the bag is gripped by the belts l3 and I4; and the gathering of the bag neck is efi'ected at a location between the V-belts and the fill in the bag so that the bag is pulled tightly around the fill therein at the gathering pocket 22 so that the length of twistable strand is applied to maintain the bag tightly around the fill therein.
  • a bag closer for filled bags moving along a line for processing comprising straightening means receiving the open ends of the bags and flattening such open ends to lie parallel to the direction of travel,
  • gathering means at one side of the conveyor and including a pair of elongate guides on opposite sides of the path of travel of the flattened bag and extending therealong, said guides cooperatively defining an elongate gathering pocket having an open end receiving the flattened bag during gathering and a closed end obstructing movement of the flattened bag and effecting gathering thereof, the guides defining the opposite sides of the pocket and converging to an apex at the closed end of the pocket, one of said guides being movable away from the other at the apex to permit movement of the gathered bag neck out of the pocket and past the guides,
  • yieldable means normally retaining said guides against each other at the closed end of the pocket
  • pusher means engaging and urging the gathered bag neck through said pocket and in said direction of travel
  • a bag tier for filled bags comprising means gathering the bag neck and applying a length of twistable strand to the gathered bag neck with ends of the strand extended rearwardly therefrom relative to the direction of travel,
  • twisting hook at one side of the path of travel of the gathered bag neck and continuously revolving on an axis extending transversely of and toward said path of travel
  • said pusher means operating independently of said conveyor and carrying the gathered bag neck away from said pocket
  • twisting hook at one side of the path of travel of the gathered bag neck as carried by said pusher means, and said hook continuously revolving on an axis extending transversely of and toward said path of travel
  • a bag closer for filled bags moving along a line for processing comprising gathering means for the neck of the bags and including a pair of elongate guides to receive the neck of the bag therebetween, said guides cooperatively defining an elongate gathering pocket having an open end receiving the flattened bag during gathering and a closed end obstruct ing movement of the flattened bag and efiecting gathering thereof, the guides defining the opposite sides of the pocket and obliquely converging to an apex at the closed end of the pocket, one of the guides being movable away from the other at the apex to permit movement of the gathered bag neck out of the pocket and past the guides,
  • pushing means engaging the bag neck adjacent the guides and pushing the trailing end of the bag neck into the gathering pocket for completion of the gathering of the bag neck, said pusher means carrying the gathered bag neck through the apex end of the pocket and away from said guides with a length of twistable strand applied to the gathered neck and with the ends of the strand extended rearwardly therefrom relative to the direction of travel,
  • twisting hook at one side of the path of travel of the gathered bag neck and continuously revolving on an axis extending transversely of and toward the side of the path
  • a flipper adjacent the twisting hook and having a cam portion aligned with the path of travel of the gathered bag neck to be operated thereby, said flipper engaging the rearwardly extending ends of the strand and swinging under influence of the cam portion to swing the ends of the strand transversely of the direction of travel for 'engagement and twisting by said hook while the bag neck continues to move substantially linearly under the influence of said pusher means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Sewing Machines And Sewing (AREA)
  • Making Paper Articles (AREA)
US1441A 1970-01-08 1970-01-08 Continuous tier Expired - Lifetime US3648432A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US144170A 1970-01-08 1970-01-08

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US3648432A true US3648432A (en) 1972-03-14

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Application Number Title Priority Date Filing Date
US1441A Expired - Lifetime US3648432A (en) 1970-01-08 1970-01-08 Continuous tier

Country Status (7)

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US (1) US3648432A (enrdf_load_stackoverflow)
JP (1) JPS5239359B1 (enrdf_load_stackoverflow)
AU (1) AU2408971A (enrdf_load_stackoverflow)
CA (1) CA940499A (enrdf_load_stackoverflow)
DE (1) DE2100454A1 (enrdf_load_stackoverflow)
FR (1) FR2075307A5 (enrdf_load_stackoverflow)
GB (1) GB1304822A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783585A (en) * 1972-09-18 1974-01-08 Thurme Eng Co Ltd Machine for closing filled bags
US3919829A (en) * 1971-05-26 1975-11-18 Leonard W Burford Apparatus for tying packages and wrapping materials
US3983681A (en) * 1973-07-05 1976-10-05 John Phillip Britt Apparatus for applying bag closures
US4711064A (en) * 1986-09-17 1987-12-08 Kabushiki Kaisha Takara Binding apparatus for sealing bags or the like
US4813207A (en) * 1987-10-02 1989-03-21 Rundle Gregory E Bag sealing machine
US4912913A (en) * 1987-10-02 1990-04-03 Bemis Company, Inc. Bag sealing machine
US5465549A (en) * 1993-09-30 1995-11-14 Lummus Investment Corporation Apparatus for applying twist ties
US5692358A (en) * 1993-09-30 1997-12-02 Burford Corporation Bag neck tying device
US20050241275A1 (en) * 2004-04-28 2005-11-03 Irwin Jere F Bag accumulating device, bag neck gathering machine, and method
US20060042051A1 (en) * 2004-08-27 2006-03-02 Irwin Jere F Strips of clips and clip
US20100083612A1 (en) * 2008-10-06 2010-04-08 Frazier Jimmy R Bag tying apparatus having over-travel compensation assembly for holder-shear drive assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242633A (en) * 1963-03-04 1966-03-29 Doughboy Ind Inc Bag tying machine
US3283474A (en) * 1963-06-13 1966-11-08 Royal Industries Bag tying machine
US3481106A (en) * 1967-11-13 1969-12-02 Doughboy Ind Inc Wrapper closing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242633A (en) * 1963-03-04 1966-03-29 Doughboy Ind Inc Bag tying machine
US3283474A (en) * 1963-06-13 1966-11-08 Royal Industries Bag tying machine
US3481106A (en) * 1967-11-13 1969-12-02 Doughboy Ind Inc Wrapper closing apparatus

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919829A (en) * 1971-05-26 1975-11-18 Leonard W Burford Apparatus for tying packages and wrapping materials
US3783585A (en) * 1972-09-18 1974-01-08 Thurme Eng Co Ltd Machine for closing filled bags
US3983681A (en) * 1973-07-05 1976-10-05 John Phillip Britt Apparatus for applying bag closures
US4711064A (en) * 1986-09-17 1987-12-08 Kabushiki Kaisha Takara Binding apparatus for sealing bags or the like
US4813207A (en) * 1987-10-02 1989-03-21 Rundle Gregory E Bag sealing machine
US4912913A (en) * 1987-10-02 1990-04-03 Bemis Company, Inc. Bag sealing machine
US5465549A (en) * 1993-09-30 1995-11-14 Lummus Investment Corporation Apparatus for applying twist ties
US5692358A (en) * 1993-09-30 1997-12-02 Burford Corporation Bag neck tying device
US5708339A (en) * 1993-09-30 1998-01-13 Burford Corporation Bag neck gathering stop
US20050241275A1 (en) * 2004-04-28 2005-11-03 Irwin Jere F Bag accumulating device, bag neck gathering machine, and method
US8474227B2 (en) * 2004-04-28 2013-07-02 Jere F. Irwin Bag accumulating device, bag neck gathering machine, and method
US20060042051A1 (en) * 2004-08-27 2006-03-02 Irwin Jere F Strips of clips and clip
US20100083612A1 (en) * 2008-10-06 2010-04-08 Frazier Jimmy R Bag tying apparatus having over-travel compensation assembly for holder-shear drive assembly
US7770356B2 (en) * 2008-10-06 2010-08-10 Burford Corp. Bag tying apparatus having over-travel compensation assembly for holder-shear drive assembly

Also Published As

Publication number Publication date
DE2100454A1 (de) 1971-07-15
AU2408971A (en) 1972-07-13
FR2075307A5 (enrdf_load_stackoverflow) 1971-10-08
JPS5239359B1 (enrdf_load_stackoverflow) 1977-10-04
CA940499A (en) 1974-01-22
GB1304822A (enrdf_load_stackoverflow) 1973-01-31

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Legal Events

Date Code Title Description
AS Assignment

Owner name: DOBOY PACKAGING MACHINERY, INC., 215 NORTH KNOWLES

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:NORDSON CORPORATION, A CORP OF OH;REEL/FRAME:004206/0205

Effective date: 19831220