US3458969A - Closing device - Google Patents

Closing device Download PDF

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Publication number
US3458969A
US3458969A US627040A US3458969DA US3458969A US 3458969 A US3458969 A US 3458969A US 627040 A US627040 A US 627040A US 3458969D A US3458969D A US 3458969DA US 3458969 A US3458969 A US 3458969A
Authority
US
United States
Prior art keywords
tape
roll
bag
feed
closing
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
US627040A
Other languages
English (en)
Inventor
Doyle R Hudson
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.)
Graphic Packaging International LLC
Original Assignee
Olinkraft Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olinkraft Inc filed Critical Olinkraft Inc
Application granted granted Critical
Publication of US3458969A publication Critical patent/US3458969A/en
Assigned to MANVILLE FOREST PRODUCTS CORPORATION reassignment MANVILLE FOREST PRODUCTS CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE MAY 6, 1980 Assignors: OLINKRAFT, INC.
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
    • B65B51/06—Applying adhesive tape
    • B65B51/062—Applying adhesive tape to the mouths of bags
    • 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
    • B65B51/046—Applying a closure element to the mouths of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/004—Closing bags

Definitions

  • the disposable bag which is characteristically of a fairly light weight polyethylene, is sterilized at the time of manufacture and is delivered in the sterile condition.
  • the disposable bags are easily stored before use, fully collapsed and flat, and are still flat when delivered to the filling machine.
  • the filled, disposable plastic bag is inserted in an outer housing of flexible material, preferably kraft paper.
  • the open mouth of the outer kraft housing must be closed, a reinforcing tape positioned thereover, and the reinforcing tape firmly afiixed thereto.
  • a carrying handle may then be formed from the reinforcing tape.
  • FIGURE 1 is a top view of the apparatus of the present invention.
  • FIGURE 2 is a side elevational view of the apparatus of FIGURE 1, with portions cut away;
  • FIGURE 3 is a front view of one portion of the apparatus of FIGURE 1 in two stages of operation;
  • FIGURE 4 is an enlarged top view of one portion of the apparatus of FIGURE 1.
  • reinforcing tape 10 on storage roll 11 is fed by feed means, such as mating rolls 12 and 13 mounted on housing 14 in spaced rela tion to storage roll 11.
  • Tape roll 11 is mounted on housing 14 and optional tape follower 15 mounted on housing 14 maintains tape 10 in the desired alignment.
  • Tape 10 is preferably of a cardboard type of heavy consistency so that it will readily support the full weight of the completed assembly.
  • Mating roll 12 may be pressure loaded so that it moves away from mating engagement with mating roll 13 in order to facilitate the loading of tape 10 therebetween.
  • Mating rolls 12 and 13 tightly interengage so that they positively feed tape 10 off tape roll 11 at the desired rate.
  • mating rolls 12 and 13 are scored to downwardly infold tape 10 and thus commence the positioning of tape 10 over the closed mouth of the bag assembly.
  • the feeding and scoring operations may be performed by separate rolls, if desired. However, it has been found to be preferred to combine these functions in a single set of rolls. Also, if desired, the feeding means may be integral with tape roll 11.
  • Mating rolls 12 and 13 also serve as a folding means to downwardly fold tape 10 in that mating roll 12 is a male score roll and mating roll 13 is a female score roll, note in FIGURE 1 groove 16 located centrally of roll 13 and in FIGURE 2 note male member 17.
  • the tape is scored centrally thereof from the bottom to form a crown on the tape and downwardly fold the edges of the tape.
  • Shaft 20 passes through and is affixed to roll 12.
  • Roll 13 is rotatably mounted in housing 14 via shaft 21.
  • Shaft 21 passes through and is aflixed to roll 13.
  • Gear 22 is operatively connected to shaft 21 via overriding clutch 23 which in turn is afiixed to drive shaft 20.
  • Overriding clutch 23 is keyed to shaft 21.
  • Gear 22 is mounted securely to hub of clutch 23.
  • Gear 22 is operatively connected to and turned by piston rod 24 which is actuated by hydraulic or air cylinder 25 mounted on housing 14.
  • Clutch 23 is a one-way clutch which allows roll 13 to turn and feed up to required amount of tape 10 on the forward stroke of piston rod 24 and cylinder 25. The clutch allows piston rod 24 to return to starting position without backward rotation of roll 13.
  • Piston rod 24 is connected to rack 40.
  • Moving rack 40 15 an extension of piston rod 24 which moves under gear 22 and roll 13 to feed out tape, and also to feed out cut tape via finger plate 41 and fingers 42 to closing plates 52 and 53, discussed below.
  • Piston rod 24 then retracts, retracting rack 40 and rotating gear 22 in reverse.
  • Overriding clutch 23 allows reverse rotation of gear 22 without turning roll 13 in reverse.
  • shaft 21 extends outwardly past gear 22 to allow manual movement of roll 13 by means of a crank, wrench or hand roll.
  • piston rod 24 it is preferred that one stroke of piston rod 24 be used to turn roll 13 one complete revolution and to feed up the required amount of tape. Naturally, the stroke could be timed to feed up any desired length of tape.
  • the filled bags 26 are moving underneath the tape, going into position to receive the folded tape.
  • the filled bags are continuously feeding on conveyor means 27 from a loading station, not shown, and are moving into position to be closed.
  • the tape is then fed through reducing bars 31 and 32 which are flared outwardly at 33 and 34 to receive the tape.
  • Bars 31 and 32 have guide means to prevent the tape from slipping upwardly, as by extensions 35 and 36 afiixed to the upper portion thereof, or grooves on the internal faces thereof, or both.
  • cutting means such as cut-off knife 37, cuts-off the required length of tape and forms cut tape portion 38.
  • the knife 37 may be mounted in a conventional manner, not shown. Bars 31 and 32 are progressively closer together to slightly fold out tape portion 38 in a downwardly direction.
  • piston rod 24 actuates rack 40 which carries finger plate 41 which in turn carries pusher fingers 42 pivotally mounted on pivot 43 and spring supported via spring 44.
  • Pusher fingers 42 are mounted so that on the return stroke of rack 40 they ride beneath cut tape portion 38 and beneath table 45. Since they are spring loaded, when they clear the back of table 45, they come up behind the cut tape 38.
  • Pusher finger grooves 46 seat around cut tape 38 so that finger 42 will not slip off and will positively move cut tape 38 forward on the forward stroke of piston rod 24 into matching grooves 50 and 51 on the sides of closing plates 52 and 53, shown clearly in FIGURE 3.
  • FIGURES 3 and 4 show the detailed operation of the closing plates. After cut tape portion 38 is fed into matching grooves 50 and 51, closing plates 52 and 53 close out tape portion around the closed mouth of bag 26 and sealing means, such as staple mechanism 54 firmly seals the tape 38 on top of bag 26, thus tightly sealing the bag assembly.
  • sealing means such as staple mechanism 54
  • the moveable fingers 42 together with moveable plates 52 and 53 comprise a positioning means for positioning the cut tape 38 over folded bag.
  • Back-up pin 55 carried on closing plate 52 prevents cut tape portion 38 from sliding out of position. Note when closing plates 52 and 53 are in the closed position, shown also in FIGURE 3, back-up pin 55 projects through opening 56 in closing plate 53.
  • Roller assemblies 59 and 60 contain earn roller mounting plates 61 and 62 afiixed to closing plates 52 and 53, respectively, cam rollers 63 and 64 carried by mounting plates 61 and 62 and cam followers 65 and 66 affixed to mounting plates 61 and 62.
  • cam rollers 63 and 64 move downwardly, cam followers 65 and 66 force rollers 63 and 64 inwardly exerting pressure on cam roller mounting plates 61 and 62 and wedging said plates together.
  • Cam rollers may be actuated by any desired means, such as hydraulic cylinder 67 mounted on anchor plate 68 and cylinder mounting bracket 69 connected to frame 70.
  • the staple mechanisms 54 are actuated by air actuating cylinders 71, with staple anvils 72 in mounting bar 73 mounted on closing plate 53 adjacent each staple mechanism 54. Staple adjusting screws 74 are provided to adjust the staple mechanisms, with staple magazine 75 and staple follower 76 carried on staple mechanism 54.
  • Bag clamp or forming bars 77 and 78 above said conveyor means 27 close and form the top of bag 26 preparatory to cut tape section 38 being fed on top of bag 26.
  • Staple mechanisms 54 are automatically actuated by actuating cylinders 71 when closing plates 52 and 53 are in the closed position, as shown in FIGURE 3.
  • the sealed and closed bag may then be fed to a loading station or handle forming station, if desired.
  • a device for applying a strip of sealing tape over closed ends of bags comprising:
  • feed means operative to remove said tape from said roll means at a predetermined rate
  • scoring means associated with said feed means, said scoring means 'being operative to form a fold line on said tape;
  • clutch means operatively interconnecting said drive means with said feed means, said clutch means serving to actuate said feed means during the work stroke of said drive means, and said clutch means further being operative to deactivate said feed means during the return stroke of said drive means;
  • movable finger means operably connected to said drive means and disposed downstream of said cutting means, said finger means being operable to advance severed lengths of said tape toward said bags during the work stroke of said drive means;
  • plate means downstream of said finger means said plate means being operable to receive said severed lengths of tape from said finger means and fold said severed lengths of tape over said closed ends of said bags.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Package Closures (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
US627040A 1967-03-30 1967-03-30 Closing device Expired - Lifetime US3458969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62704067A 1967-03-30 1967-03-30

Publications (1)

Publication Number Publication Date
US3458969A true US3458969A (en) 1969-08-05

Family

ID=24512922

Family Applications (1)

Application Number Title Priority Date Filing Date
US627040A Expired - Lifetime US3458969A (en) 1967-03-30 1967-03-30 Closing device

Country Status (7)

Country Link
US (1) US3458969A (es)
BE (1) BE712936A (es)
DE (1) DE1586224A1 (es)
ES (1) ES349036A1 (es)
FR (1) FR1552367A (es)
GB (1) GB1188442A (es)
NL (1) NL6801401A (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876840A (en) * 1987-09-19 1989-10-31 Fuji Pack System Ltd. Bag covering apparatus
ITMI20100371A1 (it) * 2010-03-05 2011-09-06 Concetti Spa Apparecchiatura di realizzazione di mezzi di apertura/chiusura della bocca di sacchi e macchina di riempimento/sigillatura di sacchi dotata di detta apparecchiatura

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114180124A (zh) * 2021-11-30 2022-03-15 漳州市三丘机械设备有限公司 一种立式食品网袋包装机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1871701A (en) * 1928-06-16 1932-08-16 American Sealcone Corp Receptacle closing and sealing means
US2697533A (en) * 1952-07-25 1954-12-21 Charles F Richard Package labeling mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1871701A (en) * 1928-06-16 1932-08-16 American Sealcone Corp Receptacle closing and sealing means
US2697533A (en) * 1952-07-25 1954-12-21 Charles F Richard Package labeling mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876840A (en) * 1987-09-19 1989-10-31 Fuji Pack System Ltd. Bag covering apparatus
ITMI20100371A1 (it) * 2010-03-05 2011-09-06 Concetti Spa Apparecchiatura di realizzazione di mezzi di apertura/chiusura della bocca di sacchi e macchina di riempimento/sigillatura di sacchi dotata di detta apparecchiatura
WO2011107400A1 (en) * 2010-03-05 2011-09-09 Concetti S.P.A. Apparatus for producing means for opening/closing the mouth of bags and bag filling/sealing machine provided with said apparatus

Also Published As

Publication number Publication date
ES349036A1 (es) 1969-04-01
FR1552367A (es) 1969-01-03
BE712936A (es) 1968-09-30
NL6801401A (es) 1968-10-01
DE1586224A1 (de) 1970-05-14
GB1188442A (en) 1970-04-15

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