US3713358A - Apparatus and process for severing flexible sheet materials - Google Patents

Apparatus and process for severing flexible sheet materials Download PDF

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Publication number
US3713358A
US3713358A US00158198A US3713358DA US3713358A US 3713358 A US3713358 A US 3713358A US 00158198 A US00158198 A US 00158198A US 3713358D A US3713358D A US 3713358DA US 3713358 A US3713358 A US 3713358A
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US
United States
Prior art keywords
severing
strips
conveying
continuous
discrete pieces
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
US00158198A
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English (en)
Inventor
J Honeycutt
T Friday
T Floyd
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.)
Celanese Corp
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Celanese Corp
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Filing date
Publication date
Application filed by Celanese Corp filed Critical Celanese Corp
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Publication of US3713358A publication Critical patent/US3713358A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B7/00—Cutting tobacco
    • A24B7/04—Cutting tobacco by machines with revolving knives
    • A24B7/06—Cutting tobacco by machines with revolving knives with two co-operating sets of knife discs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0505—With reorientation of work between cuts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • Y10T83/0538—Repetitive transverse severing from leading edge of work
    • Y10T83/0548—With longitudinal severing
    • Y10T83/0562—Prior to transverse severing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/222—With receptacle or support for cut product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6476—Including means to move work from one tool station to another
    • Y10T83/6489—Slitter station
    • Y10T83/6491—And transverse cutter station

Definitions

  • ABSTRACT An improved apparatus and process for continually severing continuous flexible sheet material, particularly smokable sheet materials, into discrete pieces having a parallelogram configuration is described.
  • Filler material for cigarette and cigars is generally composed substantially of shredded tobacco leaf. Many of these fillers also contain significant amounts, e.g., up to about 20 percent of reconstituted tobacco shred.
  • reconstituted tobacco encompasses materials prepared by two different processes. First, wet process reconstituted tobacco is prepared by finely grinding tobacco particles in the presence of a high moisture content and then forming a sheet, the coherence of which is achieved through the naturally adhesive properties of the tobacco. Dry process reconstituted tobacco is prepared by combining with finely ground tobacco a minor amount of a binder material and usually a minor amount of a combustion modifier and then casting a sheet of the mixture.
  • Tobacco replacement materials are substantially non-tobacco in composition but tend to simulate the properties of tobacco in appearance, burning rate, etc. These materials are normally comprised of a combustible substrate, usually cellulosic in nature, in combination with one or more conventional combustion modifiers. Other ingredients may be added to impart particular properties to the composition. These materials are usually prepared in the form of a cast film or a paper-like sheet.
  • smokable sheet materials For the purpose of the present description, reconstituted tobacco and tobacco replacement materials will be generically referred to as smokable sheet materials.
  • Utilization of smokable sheet materials has a considerable number of advantages for the manufacturer and the ultimate consumer. Among such advantages are increased product uniformity, increased ease of manufacture and reduced cost. In the case of some tobacco replacement materials, an additional advantage is a reduction in the tar and nicotine content of the ultimate smoking product.
  • Smokable sheet materials are normally blended with tobacco leaf prior to the shredding operation in the manufacture of cigarettes or the thrashing step in the manufacture of cigars. Since smokable sheet materials are manufactured in the form of a wide, e.g., from about 24 to about 72 inch continuous sheet, it is necessary prior to this blending to cut the sheet material into dimensions of a suitable size, e.g., l to inches on a side. It has been found that this cutting preferably occurs at the time of manufacture of the material since it is more readily and economically shipped in the cut state.
  • Prior art cutting apparatus employed for this purpose have proven to be unsatisfactory since cutting with these devices tends to cause fragmentation or tearing of the sheet material.
  • the cutting blades in such devices require frequently sharpening because of the abrasive nature of the sheets.
  • these devices tend to be capable of cutting only at relatively low speeds and in many instances, require a discontinuous cutting operation.
  • Another object is to provide an improved process for cutting of these materials.
  • the drawing is a perspective view of an apparatus achieving the objects of the present invention.
  • the objects of the present invention are achieved by conveying a continuous sheet of flexible material, e.g., a smokable sheet material, in a first direction to a severing zone, severing the sheet material into a plurality of continuous parallel strips, crosslapping the strips onto a continually moving zone traveling in a direction transverse to the first direction, conveying the strips to a second severing zone, and generally transversely severing the strips to form discrete pieces having a parallelogram configuration.
  • a continuous sheet of flexible material e.g., a smokable sheet material
  • a smokable sheet material or other flexible sheet material 10 preferably having a moisture content of from about 8 to about 12 percent to facilitate cutting, is conveyed by first conveyor means 12, shown in the drawing as an endless conveyor belt, to severing means 14 where the sheet is severed into a plurality of continuous parallel strips.
  • severing means 14 is shown as a plurality of slitter blades. These blades cut by means of a scissorlike action between the upper and lower banks of blades. Slitter blades are known in the cutting art. Instead of slitter blades, one may also use, for example, scoring blades which are also known in the pertinent art and comprise a plurality of circular blades which ride against a resilient surface.
  • severing means 14 Other similar severing means taught in the prior art are also adaptable for use as severing means 14.
  • the individual cutting or severing blades comprising severing means 14 will be of an equidistant separation of from about 0.5 to about 5.0 inches and preferably from about 1.0 to about 2.0 inches.
  • Continuous parallel strips of material exiting from severing means 14 are cross-lapped onto a second conveyor means 16 by traversing means 18.
  • traversing means 18 is an endless conveyor belt having an internal vacuum source. One end of the conveyor belt is adjacent severing means 14 while the other end of the conveyor belt is adjacent conveyor means 16. Strips carried by traverse means 18 are held onto the conveyor surface by an internal vacuum source until reaching the end of the conveyor belt closest to conveyor means 16. Traversing means 18 is adapted to pivot about the end closest to severing means 14 and oscillate across the surface of conveyor 16, preferably at a distance of from about 6 to about 8 inches.
  • traversing means 18 be of the particular type illustrated. Instead, one may also suitably employ dual opposed conveyor belts disposed to oscillate over conveying means 16 and convey the sheet material therebetween. Also, an oscillatable chute known in the art as a plaiter may be employed for this purpose. Other suitable alternatives will be readily apparent to the skilled artisan. In fact, in some instances, it is possible to eliminate traversing means 18 entirely by using as conveyor means 16 an endless conveyor belt adapted for transverse oscillation.
  • Strips cross-lapped onto conveyor means 16 are conveyed to a second severing zone 20 where the strips are severed generally transversely to form discrete pieces having a parallelogram configuration.
  • Severing means 20 will generally, but not necessarily, be of the same structure as severing means 14. The preceding description of severing means 14 is equally applicable to severing means 20.
  • Discrete pieces of sheet material exiting from severing means 20 fall into receptacle 22 or may be otherwise collected for subsequent processing, storage, or shipping.
  • An apparatus for converting a continuous sheet of flexible material into discrete pieces having a parallelogram configuration comprising:
  • a. a first conveying means for continually conveying a flexible sheet material along a first path in a first given direction;
  • a first severing means positioned along said first path and transverse to said first given direction adapted to sever said material into a plurality of parallel strips;
  • a second conveying means positioned transversely of said first conveying means for conveying material along a second path in a second given direction;
  • traversing means located between said first and second conveying means adapted to cross lap said parallel continuous strips onto said second conveying means;
  • a second severing means positioned along said second path and transverse to said second given direction adapted to sever said parallel continuous strips into discrete pieces having a parallelogram configuration
  • first and second conveying means are endless conveyor belts having a width of from about 24 to about 72 inches.
  • first and second severing means are comprised of parallel slitter blades positioned at a distance of from about 1 to about 5 inches apart.
  • said traversing means is an endless conveyor belt with an internal vacuum source having one end adjacent to said first severing means and the other end adjacent to said second conveying means and adapted to oscillate across said second conveying means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Making Paper Articles (AREA)
  • Laminated Bodies (AREA)
US00158198A 1971-06-30 1971-06-30 Apparatus and process for severing flexible sheet materials Expired - Lifetime US3713358A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15819871A 1971-06-30 1971-06-30

Publications (1)

Publication Number Publication Date
US3713358A true US3713358A (en) 1973-01-30

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Application Number Title Priority Date Filing Date
US00158198A Expired - Lifetime US3713358A (en) 1971-06-30 1971-06-30 Apparatus and process for severing flexible sheet materials

Country Status (18)

Country Link
US (1) US3713358A (xx)
JP (1) JPS5543389B1 (xx)
AR (1) AR193274A1 (xx)
AU (1) AU466718B2 (xx)
BE (1) BE785658A (xx)
BR (1) BR7204333D0 (xx)
CA (1) CA979410A (xx)
CH (1) CH560092A5 (xx)
DE (1) DE2230462A1 (xx)
DK (1) DK134740B (xx)
FI (1) FI56309C (xx)
FR (1) FR2144385A5 (xx)
GB (1) GB1327177A (xx)
IT (1) IT956927B (xx)
NO (1) NO135198C (xx)
PH (1) PH9810A (xx)
SE (1) SE383249B (xx)
ZA (1) ZA724177B (xx)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921920A (en) * 1973-04-27 1975-11-25 Huguette Brocard Machine for destroying documents
US4018118A (en) * 1974-11-25 1977-04-19 Goff Edward W High speed precision metal cutting saw assembly
US4410315A (en) * 1980-10-03 1983-10-18 Beloit Corporation Low velocity trim removal means and method
EP0131702A1 (en) * 1983-06-16 1985-01-23 R.J. Reynolds Tobacco Company Dicing apparatus for sheet material
US5069735A (en) * 1990-06-04 1991-12-03 Milliken Research Corporation Apparatus for producing sealed edge knit wiping cloths
US20040055478A1 (en) * 2002-07-05 2004-03-25 Creo Inc. Slipsheet compactor system
US20040173701A1 (en) * 2003-03-05 2004-09-09 Rieter Cz A.S. Device for crushing plastic products and/or semi-manufactured products in particular for the purpose of their recycling
EP2106708A1 (en) * 2008-03-31 2009-10-07 Reemtsma Cigarettenfabriken GmbH Cigarette
US20100170970A1 (en) * 2009-01-07 2010-07-08 Fellowes, Inc. Shredder having a dual stage cutting mechanism
US20110192925A1 (en) * 2008-07-15 2011-08-11 Gerardo Pagaza-Melero Machine for obtaining rubber pelets from used tires
CN104544538A (zh) * 2015-01-08 2015-04-29 云南中烟工业有限责任公司 一种再造烟叶切丝设备
CN114343226A (zh) * 2021-12-14 2022-04-15 红塔烟草(集团)有限责任公司 一种组合式定长定宽薄片烟丝切割装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1139198A (en) * 1979-10-02 1983-01-11 Andrew C. Knight Comminution apparatus
DE4446936A1 (de) * 1994-12-28 1996-07-04 Hassia Verpackung Ag Verfahren und Vorrichtung zur Vorbereitung der Parallelherstellung von Schlauchbeutelpackungen
US7762486B2 (en) 2007-01-30 2010-07-27 Staples The Office Superstore, Llc Shredder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1340225A (en) * 1919-08-20 1920-05-18 United Shoe Machinery Corp Method of cutting sheet material
US2836018A (en) * 1956-09-25 1958-05-27 Gen Motors Corp Manufacturing device
US3224306A (en) * 1962-10-09 1965-12-21 Ael Dev And Res Division Inc Automatic cutting and collating machine and method
US3329049A (en) * 1964-04-02 1967-07-04 Ici Ltd Polymer chip cutter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1340225A (en) * 1919-08-20 1920-05-18 United Shoe Machinery Corp Method of cutting sheet material
US2836018A (en) * 1956-09-25 1958-05-27 Gen Motors Corp Manufacturing device
US3224306A (en) * 1962-10-09 1965-12-21 Ael Dev And Res Division Inc Automatic cutting and collating machine and method
US3329049A (en) * 1964-04-02 1967-07-04 Ici Ltd Polymer chip cutter

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921920A (en) * 1973-04-27 1975-11-25 Huguette Brocard Machine for destroying documents
US4018118A (en) * 1974-11-25 1977-04-19 Goff Edward W High speed precision metal cutting saw assembly
US4410315A (en) * 1980-10-03 1983-10-18 Beloit Corporation Low velocity trim removal means and method
EP0131702A1 (en) * 1983-06-16 1985-01-23 R.J. Reynolds Tobacco Company Dicing apparatus for sheet material
US4522096A (en) * 1983-06-16 1985-06-11 R. J. Reynolds Tobacco Company Dicing apparatus for sheet material
US5069735A (en) * 1990-06-04 1991-12-03 Milliken Research Corporation Apparatus for producing sealed edge knit wiping cloths
US7341000B2 (en) * 2002-07-05 2008-03-11 Kodak Graphic Communications Canada Company Slipsheet compactor system
US20040055478A1 (en) * 2002-07-05 2004-03-25 Creo Inc. Slipsheet compactor system
US20040173701A1 (en) * 2003-03-05 2004-09-09 Rieter Cz A.S. Device for crushing plastic products and/or semi-manufactured products in particular for the purpose of their recycling
EP2106708A1 (en) * 2008-03-31 2009-10-07 Reemtsma Cigarettenfabriken GmbH Cigarette
US20110192925A1 (en) * 2008-07-15 2011-08-11 Gerardo Pagaza-Melero Machine for obtaining rubber pelets from used tires
US20100170970A1 (en) * 2009-01-07 2010-07-08 Fellowes, Inc. Shredder having a dual stage cutting mechanism
US7938347B2 (en) * 2009-01-07 2011-05-10 Fellowes, Inc. Shredder having a dual stage cutting mechanism
CN104544538A (zh) * 2015-01-08 2015-04-29 云南中烟工业有限责任公司 一种再造烟叶切丝设备
CN114343226A (zh) * 2021-12-14 2022-04-15 红塔烟草(集团)有限责任公司 一种组合式定长定宽薄片烟丝切割装置
CN114343226B (zh) * 2021-12-14 2023-12-15 红塔烟草(集团)有限责任公司 一种组合式定长定宽薄片烟丝切割装置

Also Published As

Publication number Publication date
AR193274A1 (es) 1973-04-11
AU466718B2 (en) 1975-11-06
IT956927B (it) 1973-10-10
GB1327177A (en) 1973-08-15
ZA724177B (en) 1973-03-28
BE785658A (fr) 1973-01-02
FI56309C (fi) 1980-01-10
SE383249B (sv) 1976-03-08
AU4379972A (en) 1974-01-03
NO135198B (xx) 1976-11-22
CH560092A5 (xx) 1975-03-27
DK134740C (xx) 1977-07-04
BR7204333D0 (pt) 1973-07-10
PH9810A (en) 1976-03-26
CA979410A (en) 1975-12-09
JPS5543389B1 (xx) 1980-11-06
DK134740B (da) 1977-01-10
FR2144385A5 (xx) 1973-02-09
FI56309B (fi) 1979-09-28
DE2230462A1 (de) 1973-01-11
NO135198C (xx) 1977-03-02

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