US3577909A - Automatic strapping machine - Google Patents

Automatic strapping machine Download PDF

Info

Publication number
US3577909A
US3577909A US774711A US3577909DA US3577909A US 3577909 A US3577909 A US 3577909A US 774711 A US774711 A US 774711A US 3577909D A US3577909D A US 3577909DA US 3577909 A US3577909 A US 3577909A
Authority
US
United States
Prior art keywords
band
article
frame
feed rolls
jaw
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
US774711A
Other languages
English (en)
Inventor
Masatoshi Takano
Hiroshi Arita
Hayao Omori
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3577909A publication Critical patent/US3577909A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/22—Means for controlling tension of binding means

Definitions

  • the apparatus comprises a frame mounted for displacement in both directions along the path of movement of the band, feed rolls carried by the frame to engage the band in the path, drive means for rotating the feed rolls to advance the band first in the one direction and then in the opposite direction, and control means for operating the feed rolls and the frame.
  • the control means causes the band to advance around the article in the first direction until the article is surrounded by the band, then clamps the leading end of the band upon encirclement of the article and interruption of the first means, then drives the feed rolls in the opposite direction and to cause the frame to be displaced along the path toward the article which arrests the feed rolls, and finally operates to forcibly displace the frame away from the article to apply additional tension to tighten the band around the article.
  • This invention relates to an apparatus for feeding and fastening a band and more particularly to an apparatus for plying, feeding and fastening a band adopted to an apparatus for plying, welding and cutting portions of a band after binding around an article to be strapped in an automatic strapping machine.
  • a band feeding and pulling back operation to bind around an article to be strapped with a band is done with one or more than two driving rollers in such steps as to stop pulling back of a band by a driving roller after a band has been bound around an article to be strapped and then, the band is tightened by using a jaw or a roller for fastening the article strictly.
  • the present invention contemplates adopting a new and improved apparatus for feeding and fastening a band to an apparatus for plying, welding and cutting portions of a band in an automatic strapping machine which is efiicient and does not require a complex apparatus as the previous one had.
  • the apparatus of the present invention is easy to adjust, simple to construct, cheap to manufacture and reliable in operation owing to a simple mechanism of a swinging frame which is turned by a circular curved groove of a cylindrical cam fixed to the head of a camshaft of the apparatus for plying, welding and cutting a band.
  • the movement of the swinging frame is transmitted to a jaw and a driving roller arranged thereon, contacting with a top roller adjustably on the upper surface of said driving roller, so as the band to be fed, pulled back, fastened strictly around the article to be strapped and accomplished the desired result with a small sized, light and simply constructed apparatus.
  • FIG. 1 is an elevational partially broken view of the apparatus contemplated herein;
  • FIG. 2 is a partially broken side view of the apparatus shown in FIG. 1;
  • FIGS. 3, 4 and 5 are illustrations of operations of the ap paratus contemplated herein;
  • FIG. 6 is a perspective view of a controlling system of a contact rod raising a jaw arranged in a guide block fixed to a side of an upper portion of a swinging frame;
  • FIG. 7 is a perspective view partially broken illustrating a relation between a swinging frame and a cylindrical cam
  • FIG. 8 is an elevational summarized view of an automatic strapping machine embodying this invention.
  • FIG. 9 is a schematic diagram of suitable means for controlling the operation of the feed rolls and the swinging frame.
  • a cylindrical earn 5 is fixed to a camshaft 4 at one end thereof, mounted laterally on a frame 3 arranged on a supporting plate 2 below a slidable table 1, a roller 11 is set in a curv- 75 ing circular groove 6 formed on a peripheral surface of the cylindrical cam 5, the roller being supported at an end of a shaft pin 10 provided on a side of a swinging frame 9 which is borne with a shaft 8 rotatably at its one end in a bearing 7 formed on the supporting plate 2.
  • the left side 15 (the left in the drawing) of the frame 9 contacts with a switch lever 18 of a limit switch 17 which is fixed to an apparatus body 16 for actuating the switch 17.
  • the swinging frame 9 is provided with a driving shaft 20 mounted on the upper part thereof, to one end of the shaft 20 a driving roller 21 is fixed, with the upper surface of the roller 21 contacts a top roller borne with a pivot 24 driven in a.
  • a control nut 31 is bolted and between the control nut 31 and the lower surface of the receiving portion 29 being furnished with a spring 32 which is adjusted by screwing or loosing the nut 31 so as the top roller 25 to be contacted with the driving roller 21 adjustably being controlled to be pressed each other closely or lightly; a pulley 33 fixed to the other end of the driving shaft 20 having the driving roller 21 fixed to one end thereof is connected through a transmitting belt 36.
  • Guide blocks 42, 43 having leading slots 41, 41 respectively for leading a hand through between the driving roller 21 and the top roller 25, are fixed to the upper side of the swinging frame 9 symmetrically on the opposite sides of the contacting peripheral surfaces of the rollers 21, 25; in the leading slot 41 of the guide block 43 is formed an upwardly expanded V- shaped concavity 44 wherein being provided a jaw 45, the lower end of which is pivoted by a pivot 46 on the guide block 43; between a side of the jaw and inside of the concavity 44 a spring 47 is furnished so as the jaw 45 to be pressed constantly to turn to the right side (the right in the drawing) of the concavity 44 while the upper surface 48 of the jaw 45 to be separated from the inside of the leading slot 41 for making an interval 49 to pass a band a and then the jaw 45 is raised against the spring 47 turning to the left in the drawing so as the upper surface of the jaw 45 to be pressed on the inside of the leading slot 41.
  • a contacting pin 50 In the middle part of a side of the jaw 45 is set up a contacting pin 50 and at the right side (in the drawing) of the pin 50 is positioned an upper portion of a contacting rod 53 which is rotatably pivoted on a middle portion of a fixed board 51 with a pivot 52, vertically put on a supporting board 2 and a shaft pin 54 is inserted into the end portion of the contacting rod 53, being projected on the other side of the fixed board 51 through an arc-shaped slot 55 formed in the lower portion of the fixed board 51 centering around the pivot 52 around of which is wound a middle portion of a spring rod 56, one end 57 of which being fixed to the board 51, while the other end S8 is fixed to the contacting rod 53, the upper portion of which being pressed toward the contacting pin 50 of the jaw 45, while the lower portion of the rod 53 being pressed in the opposite direction and the shaft pin 54 inserted into the lower portion of the rod 53 being pressed constantly toward one end portion (to the right in the drawing) of the
  • the adjustable screw rod 60 is screwed with a thumb nut 62 fixed to the other end of the rod 60 to be moved forward and backward for pushing the shaft pin 54 to move it clockwise along the arcshaped slot 55 or returning it by moving counterclockwise against the action of the spring rod 56, thus, the interval between the contacting rod 53 and the contacting pin 50 of the jaw 45 is adjusted widely or narrowly as desired, so as the head portion of the guide block 42 projected from the side 15 of the swinging frame 9 to be encountered with one end of a band receiving inlet 63 arranged on the frame 3.
  • the adjustable screw rod 60 is screwed to be moved forward and backward, so as the position of the shaft pin 54 in the lower end of the contacting rod 53 being pressed by the action of the spring rod 56 against the pushing contact piece 61 on the head portion of the screw rod 60, to be changed as desired effecting that in a condition shown in FIG. 3, during the camshaft 4 being turned once, the head portion of a band fed, is set by a set rod (explained hereafter) at a lower surface of a slide table (explained hereafter) and the circuit connected to the motor M (illustrated in FIG.
  • roller 11 of the head portion of the shaft pin 10 provided on the lower portion of the swinging frame 9 is moved to the right-tuming portion 13 in the circular curving groove 6 formed on the cylindrical earn 5, while the swinging frame 9 is swung to the right in a large angle as shown in FIG.
  • the apparatus of this invention is arranged adjacent to a frame 3 of the apparatus for cutting a welded and overlapped or plied band, having the camshaft 4 being supported thereon.
  • the roller 11 on the head portion of the shaft pin 10 inserted into a side of the swinging frame 9 is set in the circular curved groove 6 of the cylindrical cam 5 fixed to the camshaft 4.
  • the end portion of the guide block 42 arranged at the upper part of the swinging frame 9 is opposed with the band leading inlet 63 fomted in the frame 3, so as the band a which is pulled out of the band feeding frame 64 to be led to the leading slot 41 of the guide block 43 arranged on the upper portion of the swinging frame 9 through guide rollers 65 and after the band has passed between the driving roller 21 and the top roller 25, the band a is led to the leading slot 41 of the guide block 42.
  • the driving roller 21 is rotated in the direction as shown by the arrow in FIG. 1, by switching the motor 38 to the positive motion through a transmitting pulley 39, a transmitting belt 40, a double pulley 34 (FIG. 2), a transmitting belt 36, a pulley 33 and the driving shaft 20, so as the band a which is being pressed on the driving roller 2.1 by the top roller 25 to be fed in accordance with the rotation of the driving roller 21 through the guide block 42 and the band leading inlet 63 being led to a passage 67 formed on the upper portion of the pushing rod 66, then, to a perforation 70 which is formed through an upper edge 69 of a guide wall 68 adjacent to one side of the pushing rod 66, the upper edge 69 being conformed to a part of a band cutter, and then through between the lower surface of a stopper 71 and the pushing rod 81 and between the slide table 1 and the stopping rod 72, into one end portion of a guide arch 74 which is led to a base 73 for
  • the band led to one end portion of a guide arch 74 goes around outer side of the article and is led to one side of the lower surface of the base 73 through the other end portion of the guide arch 74 and goes along the lower surface of the base 73, so as the head portion of the band a to be contacted with a microswitch 75 to open the circuit of the motor 38, until the band arrives at the lower surface of the slide table 1 by inertia and enters in a concavity in which a stopper 71 is arranged by which the band is stopped.
  • the circuit of the motor (not shown in the drawing) connected with the camshaft 4 is closed to be rotated, so as the pushing rod 66 to be raised by the pushing cam 76 fixed to the camshaft 4, and the band to be pressed and stopped on the lower surface of the slide table 1 by the head of the pushing rod 66, while the switch cam 77 fixed to the camshaft 4 being rotated together therewith, acts on the limit switch 5 (shown in FIG. 9) so as the circuit of the motor M(also illustrated in FIG. 9)which is connected with the camshaft 4, to be opened and the cylindrical cam 5 which is fixed to the end of the camshaft 4 as shown in FIG.
  • the band a thus being held tightly at the upper portion of the frame 9, is continued to be fastened further, strapping the article b which has been once bound around in accordance with the turning movement of the swinging frame'9 to the right until the roller 11 is set in the right-tuming portion 13 of the circular curved groove 6 of the rotating cylindrical cam 5.
  • a restraining rod 72, a heating plate (not shown in the drawing) and a repressing rod 81 are operated successively by a restraining cam 78 fixed to the camshaft 4, a heater cam 79 and a pressing cam 80 for the restraining the overlapped or plied portions of the band to be welded, before the band being cut' at the delivering side.
  • the slide table 1 moves from under the band a and the article b when plying up and welding of the parts of the band and cutting of the band, have finished, so as the strapped article to be removed from the base 73 for the next following operatrons.
  • An apparatus for feeding and fastening a band adopted to an apparatus for plying, welding and cutting parts of a band in an automatic strapping machine, including a swinging frame, the swinging movement of which being transmitted from a cylindrical cam; a driving roller connected with a motor, being arranged on the upper portion of said swinging frame; a top roller being pressed adjustably by and contacted with said driving roller; a pair of guide blocks having leading slots respectively for leading a band through between the driving roller and the top roller arranged on a side of the upper portion of said swinging frame; said pair of guide blocks being positioned symmetrically on the opposite sides of the contacted points of said rollers with each other; an upwardly expanded concavity being formed in one of said leading slot wherewith a jaw is provided, the lower end of which being pivoted on said guide block by a pivot on which said jaw is turned to one side in said concavity, constantly being pressed by a spring, while the upper surface of said jaw is separated from the inside of the leading slot for forming a space to pass
  • Apparatus for feeding and tightening a band in an automatic strapping machine comprising means to guide the band in a path to encircle the article to be strapped, a frame mounted for displacement along said path, feed rolls carried by said frame to engage the band in said path, drive means for said feed rolls operable to rotate said feed rolls in one direction to feed the band around the article and to rotate the rolls in the opposite direction to pull said band tight around the article, and control means for said drive means including a first means operable to drive said feed rolls in the one direction until said band encircles said article, a second means to clamp the leading end of said band upon completion of said encirclement and interruption of said first means, a third means operable upon operation of said clamping means to drive said feed rolls in the opposite direction; said feed rolls, upon tightening of the band around said article operating to displace said frame along said path toward said article; a fourth means operable in response to displacement of said frame to arrest said feed rolls; and a fifth means operable in response to the arrest of said feed rolls to for
  • Apparatus according to claim 2 including a jaw on said frame operable upon said displacement of the frame away from the article to clamp said band against said frame during the terminal portion of its travel away from said article.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
US774711A 1967-12-29 1968-11-12 Automatic strapping machine Expired - Lifetime US3577909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP42084512A JPS4821151B1 (enrdf_load_stackoverflow) 1967-12-29 1967-12-29

Publications (1)

Publication Number Publication Date
US3577909A true US3577909A (en) 1971-05-11

Family

ID=13832680

Family Applications (1)

Application Number Title Priority Date Filing Date
US774711A Expired - Lifetime US3577909A (en) 1967-12-29 1968-11-12 Automatic strapping machine

Country Status (2)

Country Link
US (1) US3577909A (enrdf_load_stackoverflow)
JP (1) JPS4821151B1 (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898924A (en) * 1974-08-12 1975-08-12 Stanley L Mead Tying machine
EP0076357A1 (en) * 1981-10-07 1983-04-13 Nichiro Kogyo Company, Ltd. Band type strapping machine
US4406219A (en) * 1979-08-30 1983-09-27 Gerd Mosca Parcel tying-up machine
US4912912A (en) * 1987-05-30 1990-04-03 Strapack Corporation Control apparatus in strapping machine
US5577371A (en) * 1994-05-06 1996-11-26 Lang; Georg Apparatus for hooping a package
US6035774A (en) * 1998-03-09 2000-03-14 Strapex Holding Ag Band tensioning device on a strapping machine
US6053387A (en) * 1997-07-22 2000-04-25 Smb Schwede Maschinenbau Gmbh Strap driving device for looping machines
US6530194B2 (en) * 2000-06-29 2003-03-11 Strapack Corporation Banding packing machine
EP1338515A1 (en) * 2002-02-26 2003-08-27 Nichiro Kogyo Co., Ltd. Sealing mechanism for a strapping band

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730036A (en) * 1950-07-05 1956-01-10 Gen Strapping Corp Package and like binding mechanism
US3116681A (en) * 1961-05-18 1964-01-07 Metaverpa Nv Packaging machine
US3157109A (en) * 1961-05-29 1964-11-17 Mid States Steel & Wire Compan Tying machine
US3183824A (en) * 1962-11-13 1965-05-18 Package Sealing Company Export Package binding machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730036A (en) * 1950-07-05 1956-01-10 Gen Strapping Corp Package and like binding mechanism
US3116681A (en) * 1961-05-18 1964-01-07 Metaverpa Nv Packaging machine
US3157109A (en) * 1961-05-29 1964-11-17 Mid States Steel & Wire Compan Tying machine
US3183824A (en) * 1962-11-13 1965-05-18 Package Sealing Company Export Package binding machines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898924A (en) * 1974-08-12 1975-08-12 Stanley L Mead Tying machine
US4406219A (en) * 1979-08-30 1983-09-27 Gerd Mosca Parcel tying-up machine
EP0076357A1 (en) * 1981-10-07 1983-04-13 Nichiro Kogyo Company, Ltd. Band type strapping machine
US4912912A (en) * 1987-05-30 1990-04-03 Strapack Corporation Control apparatus in strapping machine
US5577371A (en) * 1994-05-06 1996-11-26 Lang; Georg Apparatus for hooping a package
US6053387A (en) * 1997-07-22 2000-04-25 Smb Schwede Maschinenbau Gmbh Strap driving device for looping machines
US6035774A (en) * 1998-03-09 2000-03-14 Strapex Holding Ag Band tensioning device on a strapping machine
US6530194B2 (en) * 2000-06-29 2003-03-11 Strapack Corporation Banding packing machine
EP1338515A1 (en) * 2002-02-26 2003-08-27 Nichiro Kogyo Co., Ltd. Sealing mechanism for a strapping band
US6786027B2 (en) 2002-02-26 2004-09-07 Nichiro Kogyo Co., Ltd. Operable sealing mechanism for a strapping band

Also Published As

Publication number Publication date
JPS4821151B1 (enrdf_load_stackoverflow) 1973-06-26

Similar Documents

Publication Publication Date Title
US4559767A (en) Apparatus for regulating the tension of a strap in a package strapping machine
US6817159B2 (en) Packing method
US3269300A (en) Strapping machine
US5653095A (en) Tensioning and sealing apparatus for strapping an object with a plastic band
US3577909A (en) Automatic strapping machine
SE456079B (sv) Anordning for spenning, sammanfogning och avskerning av plastband for omslutning av forpackningar
US4062278A (en) Expanding strap loop forming and friction fusion machine
US4569186A (en) Band-returning and tightening apparatus for a band type strapping machine
US4575994A (en) Package strapping machine
EP0262338A1 (en) Automatic packaging method and apparatus
USRE31353E (en) Expanding strap loop forming and friction fusion machine
US6848239B2 (en) Band refeeding method in banding packing machine and banding packing machine having refeeding mechanism
US3841055A (en) Package binding machine
US3157109A (en) Tying machine
US3858503A (en) Strapping machine
USRE27744E (en) Strapping machine
JPH04215909A (ja) 梱包方法および装置
US3731330A (en) Book binding
JPS596768B2 (ja) 梱包機のテ−プ送り出し引締装置
JPH0999912A (ja) 紙葉帯封装置
JP2935621B2 (ja) 梱包機
JPS596767B2 (ja) 梱包方法
JPH0642611U (ja) 紙葉類結束装置におけるテープガイド機構
US5471918A (en) No-load-run strap release control mechanism for a strapping machine
JP2545067Y2 (ja) 紙葉類結束装置