US3592372A - Apparatus for web edge alignment - Google Patents

Apparatus for web edge alignment Download PDF

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Publication number
US3592372A
US3592372A US757600A US3592372DA US3592372A US 3592372 A US3592372 A US 3592372A US 757600 A US757600 A US 757600A US 3592372D A US3592372D A US 3592372DA US 3592372 A US3592372 A US 3592372A
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US
United States
Prior art keywords
web
fluid
cylinder
edge
guide roller
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
US757600A
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English (en)
Inventor
Robert C James
Walter H Vogel
Richard D Sorenson
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.)
Hayssen Manufacturing Co
Original Assignee
Hayssen Manufacturing Co
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 Hayssen Manufacturing Co filed Critical Hayssen Manufacturing Co
Application granted granted Critical
Publication of US3592372A publication Critical patent/US3592372A/en
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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/18—Registering sheets, blanks, or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/52—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using external forming surfaces, e.g. sleeves

Definitions

  • Fluid sensors are mounted on each side of the web after it passes over the roller and detect when the web edges are properly aligned. 1f the web is misaligned, the sensors control valves to operate the cylinders so that the film is again cen tered and aligned.
  • Prior art bag-forming machines have comprised forming shoulders over which webs of plastic material have been passed to form bags. The edgesof the material are sealed after passing over the forming shoulders and the bags are filled and sealed between adjacent containers before being separated.
  • the present invention comprises the method and apparatus for aligning the web edges of plastic material which is to be formed into bags and comprises sensing means which are operatively associated with the edge of the web and control a shiftable web guide roller to adjust the position of the web.
  • the web guide roller may be mounted with its opposite ends independently controlled by fluid cylinders that respond to the sensors along the edges of the web.
  • the edge alignment sensors comprise fluid receiving means that are positioned so as to receive fluid from discharge nozzles when the web becomes misaligned.
  • the sensors control pistons attached to the shiftable web guide roller so that the web is properly aligned.
  • FIG. 1 is a front view of the web-edge-aligning mechanism according to the invention.
  • FIG. 2 is a side view of the invention.
  • FIGS. 1 and 2 illustrate the apparatus for web edge alignment according to this invention wherein as shown in FIG. 1 a sheet of film 10 passes over an alignment roll 11 which is supported at both ends on suitable bearings 20 and 25.
  • Supporting shafts l and 30 are connected to the bearings 20 and 25, respectively, and are mounted in brackets 13 and 17.
  • the bracket 13 is supported on a piston shaft 14 which is connected to a piston that moves in a cylinder 16.
  • the bracket 17 is connected to the piston shaft 18 that has a piston that moves in the cylinder 19.
  • the cylinders 16 and 19 are attached to a support 12 and adjustments of the piston shafts l4 and 18 allow the roller 11 to be adjusted relative to the support member 12.
  • the film passes over the roller 11 and down over a roller 41 which has bearings 44 and 46 that are supported by a suitable frame member, not shown.
  • the film 10 then passes up between fluid-sensing means 43 and 43' and aligned nozzles 42 and 42.
  • the nozzles 42 and 42' direct a stream of fluid such as air, toward the sensing means 43 and 43'.
  • the film 10 is between the nozzle 42 and sensing means 43 only static fluid pressure is applied to the sensor 43. If the plastic film 10 moves to one side relative to FIG. 1 so that the film does not intercept the fluid from the nozzle 42, the fluid stream is intercepted by the sensor 43 and causes the roller 11 to be tilted to move the film 10 to realign it.
  • the film 10 passes up through the sensing mechanism and over a forming collar designated generally as 28 which is formed with shoulders 31 and 32.
  • the forming and support means 29 extends down through the collar 28'and the'film 10 passes over the collar and down through its lower portion 60.
  • a sealer 33 engages the edges of the sheet "10 after'it passes through the collar 28 and seals the edges to form a cylinder of plastic film.
  • a transverse sealing means 34 has sealer portions 38 and 39 on either side of the film below the collar 28 and seals the film to provide individual packages for produce or other material.
  • the sealers 38 and 39 seal the packages above and below the produce and subsequently the packages are separated by cutting along the sealed portions which have been formed by the sealers 38 and 39.
  • the sealer 34 is mounted on a suitable reciprocating shaft 61 to allow the sealers 38 and'39'to move up and down with the containers.
  • Each of the fluid sensors 43 are connected to an air pressure amplifier diaphragm 54 which senses the difi'erential pressure in lines 56 and 57 of the sensors 43 and 43'.
  • the line 57 may sense the static pressure and the line 56 may sense the dynamic pressure of fluid received from the nozzle 42. Differential pressure in lines 56 and 57 willcause the diaphragm 54 to actuate air supply control switches 62 or 63 which control the fluid supply from tank 49 to the cylinder 16 or 19.
  • the fluid supply 49 may comprise an air pressure tank which supplies fluid through a reducing valve 48 to line 47 which is connected to the fluid nozzles 42 and 42.
  • Fluid line 51 connects fluid supply 49 to a pair of conduits 52 and 53 which are connected to the air supply control switches 62 and 63, respectively.
  • Fluid line 21 is connected froni the air supply control switch 62 to the cylinder 16 and a fluid line 22 is connected from cylinder 16 to the air supply control switch 63.
  • the machine In operation, the machine is started and the web 10 passes over the alignment roller 11 and idler roller 41 between the nozzles 42 and 42', respectively, and the sensors 43 and 43'. If the film 10 is between the nozzles 42 and 42' and their associated sensors 43 and 43, the position of the cylinders 16 and 19 will not be adjusted because the film or web 10 is aligned with the forming collar 28. However, if one edge of the web 10 moves so that one of the nozzles 42 or 42 supplies fluid to the sensing means 43 or 43, the diaphragm 54 or 54' will move and fluid will be supplied to cylinder 16 or 19 and move the end of roller 11 to correct misalignment of the web. As the end 27 of the roller 11 moves, it will cause the web 10 to move and be recentered between the sensors.
  • the cylinder 19 will be energized to cause the end 26 of the roller 11 to be adjusted until the web 10 is again centered.
  • the air circuit for operating the cylinder for actuating the associated piston will be inactive, but when the edge moves sufficiently to expose enough of the opening of a sensor to cause it to respond, the diaphragmoperating valve will be actuated which in turn will energize the associated cylinder and piston to make a corrective adjustment of the position of the web guide roller so that the film will be properly positioned on the forming shoulders.
  • the air sensors operate in the same manner.
  • the forming shoulder 28 may be formed much simpler because the plastic web is maintained centered. Thus, a less sophisticated forming shoulder may be used which may be manufactured with less labor and cheaper than those previously used.
  • the present invention allows a cheaper forming shoulder to be used. Even a perfect folding shoulder presents difficulties, particularly in tracking with a packaging material that has exaggerated, but normal imperfections. Some of the imperfections are center droop, edge droop, and gauge variation.
  • the present invention not only allows a cheaper forming shoulder but also allows the use of less critical packaging materialsv It is to be realized that the nozzles 42 and 42' and their related sensors 43 and 43' may be adjusted relative to the support 40 by thumb screws 63and 64 to allow sheets of different widths to be centered by the invention.
  • Apparatus for adjusting the position of a web of material passing through a machine having a forming shoulder comprising:
  • guide means comprising a guide roller over which the web passes, v y
  • a first fluid nozzle mounted on one side of the web adjacent one edge thereof
  • a fluid supply means connected to the first fluid nozzle
  • a second fluid nozzle connected to the fluid supply and mounted on one side of the web adjacent the second edge
  • means for adjusting the guide roller including a first cylinder mounted on said machine,
  • a second cylinder mounted on the machine and connected to said second fluid sensor
  • a first fluid amplifier including a diaphragm with one side thereof connected to the first fluid sensor with a dynamic line and with the other side thereof connected to the first fluid sensor with a static line, and
  • said first fluidamplifier connected to said first cylinder.
  • Apparatus for' adjusting the position of web of material comprising a second fluid amplifier connected to said fluid supply and mounted between the second fluid sensor and the second cylinder.
  • said second fluid amplifier comprises a diaphragm with one side thereof connected to the second fluid sensorwith a dynamic line and with the other side thereof connected to the second fluid sensor with a static line.
  • Apparatus for positioning the position of a web material passing through a machine having a forming shoulder comprising:
  • guide means in engagement with the web of material and comprising a guide roller through which the web passes,
  • means for adjusting the guide means comprising a first cylinder mounted on the machine and a first piston mounted in the cylinder and one end of the guide roller rotatably supported by the first piston,
  • a first sensing means comprising a first fluid nozzle mounted on one side of the edge of the web adjacent one edge thereof, a first fluid sensor aligned with the first fluid nozzle and mounted on the opposite side of the web adjacent one edge thereof,
  • a second fluid sensor aligned with said second fluid nozzle and mounted on the opposite side of the edge of the web

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Making Paper Articles (AREA)
US757600A 1968-09-05 1968-09-05 Apparatus for web edge alignment Expired - Lifetime US3592372A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75760068A 1968-09-05 1968-09-05

Publications (1)

Publication Number Publication Date
US3592372A true US3592372A (en) 1971-07-13

Family

ID=25048468

Family Applications (1)

Application Number Title Priority Date Filing Date
US757600A Expired - Lifetime US3592372A (en) 1968-09-05 1968-09-05 Apparatus for web edge alignment

Country Status (5)

Country Link
US (1) US3592372A (de)
CA (1) CA923161A (de)
DE (1) DE1923460B2 (de)
FR (1) FR2017401A1 (de)
GB (1) GB1252635A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235358A (en) * 1977-07-07 1980-11-25 Elektro-Mechanik Gmbh Device for the edge or center control of moving webs
US4773245A (en) * 1986-04-08 1988-09-27 Davy Mckee (Sheffield) Limited Strip guiding apparatus for downcoilers
US5558263A (en) * 1994-07-26 1996-09-24 Eastman Kodak Company Apparatus and method for non-contact active tensioning and steering of moving webs
EP1122169A1 (de) * 2000-01-31 2001-08-08 Tetra Laval Holdings & Finance S.A. Vorrichtung zum Einstellen der transversalen Position einer Verpackungsmaterialbahn
US20040040258A1 (en) * 1998-12-30 2004-03-04 Sarria Sanchez Jesus Alfonso Process and facility for manufacturing and filling multiple-cavity sacks and sack produced according to said process
US6769226B2 (en) 1997-03-20 2004-08-03 Cardinal Health 409, Inc. Gelatin encapsulation techniques
US7213511B2 (en) 1996-03-20 2007-05-08 R.P. Scherer Corporation Method and apparatus for printing a ribbon for packaging gelatin capsules
US20130040796A1 (en) * 2010-05-19 2013-02-14 Joerg Christian Thies Apparatus and method for producing tubular sections for manufacturing bags
CN105346143A (zh) * 2015-11-09 2016-02-24 成都兴业雷安电子有限公司 一种具有检测和限位的料袋生产系统
US20160114917A1 (en) * 2013-06-07 2016-04-28 Hastamat Verpackungstechnik Gmbh Film web deflecting device and device for manufacturing packaging units comprising a film web deflecting device
US20180057199A1 (en) * 2015-04-14 2018-03-01 Tetra Laval Holdings & Finance S.A. Packaging machine and method for producing packages from a packaging material
US11767138B2 (en) * 2018-05-18 2023-09-26 Gea Food Solutions Germany Gmbh Method for controlling the position of a material web edge

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU584366A1 (ru) * 1975-09-10 1977-12-15 Предприятие П/Я А-1955 Устройство дл центрировани ленточной сепарации дл химического источника тока при ее резке
JPH02231351A (ja) * 1989-03-01 1990-09-13 Sanki Kogyo:Kk 帯状布用ガイドロールの傾斜制御方法とその装置
CN1028628C (zh) * 1992-03-23 1995-05-31 海德堡印刷机械股份公司 控制卷筒纸横向位置的装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914957A (en) * 1956-11-13 1959-12-01 Rayonier Inc Training mechanism for belt systems
US3069056A (en) * 1960-04-13 1962-12-18 Ind Ovens Inc Web guiding and edge stretching means
US3089595A (en) * 1960-08-06 1963-05-14 Alpine Ag Maschinenfabrik Und Flow apparatus for separating granular particles
US3244340A (en) * 1963-09-30 1966-04-05 Fife Mfg Company Inc Apparatus for maintaining the alignment of a moving web
US3317101A (en) * 1964-08-11 1967-05-02 Du Pont Web aligning apparatus for slave and master webs
US3368726A (en) * 1965-02-26 1968-02-13 Burroughs Corp Web tracking device
US3380637A (en) * 1965-10-04 1968-04-30 Mount Hope Machinery Ltd Sheet guiding apparatus
US3453847A (en) * 1966-02-18 1969-07-08 Chase Brass & Copper Co Sheet guiding and tensioning device
US3490674A (en) * 1968-03-25 1970-01-20 Rockford Servo Corp Web alignment apparatus
US3504834A (en) * 1968-05-29 1970-04-07 Du Pont Web aligning apparatus

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914957A (en) * 1956-11-13 1959-12-01 Rayonier Inc Training mechanism for belt systems
US3069056A (en) * 1960-04-13 1962-12-18 Ind Ovens Inc Web guiding and edge stretching means
US3089595A (en) * 1960-08-06 1963-05-14 Alpine Ag Maschinenfabrik Und Flow apparatus for separating granular particles
US3244340A (en) * 1963-09-30 1966-04-05 Fife Mfg Company Inc Apparatus for maintaining the alignment of a moving web
US3317101A (en) * 1964-08-11 1967-05-02 Du Pont Web aligning apparatus for slave and master webs
US3368726A (en) * 1965-02-26 1968-02-13 Burroughs Corp Web tracking device
US3380637A (en) * 1965-10-04 1968-04-30 Mount Hope Machinery Ltd Sheet guiding apparatus
US3453847A (en) * 1966-02-18 1969-07-08 Chase Brass & Copper Co Sheet guiding and tensioning device
US3490674A (en) * 1968-03-25 1970-01-20 Rockford Servo Corp Web alignment apparatus
US3504834A (en) * 1968-05-29 1970-04-07 Du Pont Web aligning apparatus

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235358A (en) * 1977-07-07 1980-11-25 Elektro-Mechanik Gmbh Device for the edge or center control of moving webs
US4773245A (en) * 1986-04-08 1988-09-27 Davy Mckee (Sheffield) Limited Strip guiding apparatus for downcoilers
US5558263A (en) * 1994-07-26 1996-09-24 Eastman Kodak Company Apparatus and method for non-contact active tensioning and steering of moving webs
US7213511B2 (en) 1996-03-20 2007-05-08 R.P. Scherer Corporation Method and apparatus for printing a ribbon for packaging gelatin capsules
US6769226B2 (en) 1997-03-20 2004-08-03 Cardinal Health 409, Inc. Gelatin encapsulation techniques
US6868650B2 (en) * 1998-12-30 2005-03-22 Jesus Alfonso Sarria Sanchez Installation for manufacturing and filling multiple-cavity bags made from a sheet of plastic material
US20040040258A1 (en) * 1998-12-30 2004-03-04 Sarria Sanchez Jesus Alfonso Process and facility for manufacturing and filling multiple-cavity sacks and sack produced according to said process
US6460748B1 (en) 2000-01-31 2002-10-08 Tetra Laval Holdings & Finance S.A Device for adjusting the transverse position of a strip of packaging material
EP1122169A1 (de) * 2000-01-31 2001-08-08 Tetra Laval Holdings & Finance S.A. Vorrichtung zum Einstellen der transversalen Position einer Verpackungsmaterialbahn
US20130040796A1 (en) * 2010-05-19 2013-02-14 Joerg Christian Thies Apparatus and method for producing tubular sections for manufacturing bags
US9221229B2 (en) * 2010-05-19 2015-12-29 Windmoeller & Hoelscher Kg Apparatus and method for producing tubular sections for manufacturing bags
US20160114917A1 (en) * 2013-06-07 2016-04-28 Hastamat Verpackungstechnik Gmbh Film web deflecting device and device for manufacturing packaging units comprising a film web deflecting device
US20180057199A1 (en) * 2015-04-14 2018-03-01 Tetra Laval Holdings & Finance S.A. Packaging machine and method for producing packages from a packaging material
US10399724B2 (en) * 2015-04-14 2019-09-03 Tetra Laval Holdings & Finance S.A. Packaging machine and method for producing packages from a packaging material
CN105346143A (zh) * 2015-11-09 2016-02-24 成都兴业雷安电子有限公司 一种具有检测和限位的料袋生产系统
US11767138B2 (en) * 2018-05-18 2023-09-26 Gea Food Solutions Germany Gmbh Method for controlling the position of a material web edge

Also Published As

Publication number Publication date
DE1923460A1 (de) 1970-03-26
CA923161A (en) 1973-03-20
GB1252635A (de) 1971-11-10
DE1923460B2 (de) 1973-10-18
FR2017401A1 (de) 1970-05-22

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