US3925863A - Apparatus for the continuous wrinkling of web shaped flat materials - Google Patents

Apparatus for the continuous wrinkling of web shaped flat materials Download PDF

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Publication number
US3925863A
US3925863A US207898A US20789871A US3925863A US 3925863 A US3925863 A US 3925863A US 207898 A US207898 A US 207898A US 20789871 A US20789871 A US 20789871A US 3925863 A US3925863 A US 3925863A
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Prior art keywords
web
guide elements
shafts
pronged
members
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Expired - Lifetime
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US207898A
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English (en)
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Arnfried Meyer
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Individual
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Individual
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    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/44—Mechanical treatment of leather surfaces
    • C14B1/56—Ornamenting, producing designs, embossing
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B2700/00—Mechanical treatment or processing of skins, hides or leather in general; Pelt-shearing machines; Making driving belts; Machines for splitting intestines
    • C14B2700/18—Machines for producing designs on leather

Definitions

  • This invention relates to a process for the continuous crumpling of web-shaped and flexible flat material, for example for the graining of artificial leather webs, and to an apparatus for conducting this process.
  • guide elements for gathering the web are fashioned as forks swinging toward one another, between which the web is passed and periodically compressed laterally.
  • Another apparatus for conducting the process exhibits several shafts'in the feed direction, each shaft carrying, as the guide elements for gathering the web, disks disposed at axial distances therealong which engage into the gaps between the axially spaced disks of the adjacent shaft(s).
  • the web is passed in an undulating manner through spaces provided axially between the disks as well as radially between the disks of one shaft and the adjacent shaft(s).
  • FIG. 1 shows the lateral view of an apparatus according to the invention for crumpling webs of material employing fork-like guide elements effective laterally against one another;
  • FIG. 2 is a top view of the apparatus according to FIG. 1;
  • FIG. 3 is a lateral view of an apparatus according to the invention for crumpling webs of material, with rotating disk-like guide elements;
  • FIG. 4 is a top-.view of the apparatus according to FIG. 3;
  • FIG. 5 is an elevational view of a triangular guide element of an embodiment of the invention.
  • FIG. 6 is an elevational view of an oval guide element of the invention.
  • FIG. 7 is a'lateral view of a further apparatus in accordance with the invention having rotating guide elements
  • FIG. 8 is a schematic representation of the drive unit for the guide elements of FIG. 7;
  • FIGS. 9 and 10 show the crumpling procedure of the invention schematically
  • FIG. 11 is an elevational view similar to FIG. 6 and illustrating an oval guide element which is angularly offset;
  • FIG. 12 illustrates means for varying distance between rotating disk-like guide elements in accordance with one embodiment of the inventive apparatus.
  • feed drum 1 receiving unfinished web 2 is disposed in front of treatmentmachine 3.
  • Unfinished web 2 is conveniently fed from above to crumpling unit 5 by means of driven pairs of feed rolls 4.
  • the crumplin g unit consists of forks 6 which serve as guide elements and are disposed in pairs one below the other as shown. These forks are attached to rocking levers 7 which, in turn, are connected, via intermediate levers 8, with crank 9.
  • crank 9 When crank 9 is rotated, rocking levers 7 execute a swinging motion directed against one another, wherein, in the external dead-center position, approximately the passage width for the spread-out web material 2 is attained, whereas the internal dead-center position, a crumpling position 10 is produced wherein web 2 is compressed approximately into the shape of a skein or cord.
  • the degree of compression in the internal dead-center position depends on the material to be processed and can be made to be adjustable, also so that it is overlapping.
  • Crank 9 is driven by motor 11 which is preferably of the infinitely variable type.
  • web 2 during the continuous passage through treatment zone 12 is periodically laterally compressed between forks 6 and continuously assumes random positions during this step, wherein correspond ingly arranged, irregular gatherings and folds are produced.
  • web 2 is gathered in a wave-like fashion repeatedly in perpendicularly disposed planes, i.e., crumpled, whereby, for example, in case of artificial leather webs, a naturally appearing grain is attained.
  • the thus-crumpled material 2 can now be discharged toward the bottom and fed to windup drum mechanism via spreading device 13 and additional pairs of rolls 14.
  • the treatment time is doubled, and, in particular in the deflecting zone, an increased random distribution of the crumpling is attained.
  • the crumpling step is distinguished by an arbitrary buckling of the material, as shown schematically in FIGS. 9 and 10.
  • Web 2 is gathered by the guide elements, namely in the longitudinal as well as transverse directions, wherein these gathering steps take place simultaneously in the treatment zone.
  • the important point is to form wave shape 52, for example in the longitudinal extension of web 2 and then again to lay these waves into waves 53.
  • two superimposing wave formations are provided disposed approximately at right angles to each other.
  • crumpling zones 54 are produced, especially in the region of small bending radii, wherein web 2 is laid into random folds (pleats, creases, etc.), since the material cannot contract elastically.
  • the crumpling device according to FIGS. 3 and 4 exhibits, in place of forked guide elements 6 of the embodiment according to FIGS. 1 and 2, disks 17 effective as the guide elements and disposed on shafts 16 arranged in series in the feed direction.
  • the disks on each shaft 16 are attached at fixed axial spacings and engage the gaps between the disks disposed on the adjacent shaft 16.
  • Shafts 16 are oppositely driven, for example by means of chain 18, the latter being set into rotation by a motor 19, which is preferably of the infinitely variable type.
  • a feed mechanism 20 which similarly consists of disks 22 arranged on shafts 21, disks 22 of one shaft 21 engaging the gaps between disks 22 of a vertically offset shaft 21, in order to obtain, in cross section, a loop-like or wave-shaped, slottype passage opening and thereby producing a lateral gathering of web 2 to the desired operating width.
  • This effect can be produced by increasing the engagement depth in the feed direction, as indicated in FIG. 3.
  • the number of the disks 22 can also be increased in a wedge-shaped manner in the feed direction, as shown in FIG. 4.
  • Disks 17 of treatment zone 12 and/or also the disks 22 of the feed unit 20 can be circular, oval, or also polygonal, the latter being effected preferably with rounded edges, and they can also be supported concentrically or eccentrically.
  • the important factor is that the web 2 be guided through the treatment zone 12 essentially free of tensile stresses, so that the web 2 can be arbitrarily placed into as high a number of different crumpling positions as possible and thus to buckle the web.
  • additional disks 22 and/or guide elements 17 in an axially offset manner in the feed direction from shaft to shaft.
  • triangular guide element 17 and oval guide element 17 are illustrated, respectively.
  • the latter consists of an ovally bent round material attached to shaft 16, wherein additionally an angularly offset position of the guide elements 17 can be provided in the axial direction.
  • the length of treatment zone 12, as well as that of feeding unit 20 depends on the material of web 2 and the required degree of crumpling. For the same reason, the degree of engagement of guide elements 17 and the operating speed thereof are variable, preferably in an infinite fashion.
  • shafts 16 with guide elements 17 can also be severally mounted rotatably at crosses 23 disposed in pairs, as illustrated in FIG. 7.
  • the crosses 23 are supported to be rotatable in such a manner that, during rotation, one shaft 16 of one cross engages into the interspace between two adjacent shafts 16 of the other cross 23.
  • guide elements 17 of one shaft 16 mesh with the gaps between guide elements 17 of the two other shafts 16.
  • web 2 is guided from feed drum 1 via guide rolls 24 through wetting chamber 25 wherein web 2 is moistened with a spray of a gaseous or gas-like medium exiting from nozzles 26, such as gases, vapors, fogs, suspended substances, and similar materials,
  • nozzles 26 such as gases, vapors, fogs, suspended substances, and similar materials
  • web 2 is heated to a presettable temperature.
  • heating bars 28, or also hot air can be provided.
  • web 2 passes, via feeding mechanism 20 for precreasing the web, into treatment zone '12 with two crosses 23 which rotate in opposition to each other.
  • the crumpling step is executed in the manner already set forth above.
  • web 2 after passing through a pair of rolls 29 corresponding to feeding mechanism 20, travels through a further chamber 30.
  • Fresh air is taken in through blower 31 into this chamber and again blown off to the outside, or conversely, in order to cool the still hot web 2, so that it can be wound up onto windup drum 15 in the cold state.
  • the traveling speed of web 2 and thus the processing intensity can be selectively adjusted by an infinitely variable, independent drive of crosses 23 and shafts 16.
  • the drive for this purpose is illustrated in FIG. 8.
  • Crosses 23 are fixedly disposed on parallel shafts 32 provided with drive gear wheels 33.
  • Chain 34 travels over these gear wheels, in such a manner that shafts 32 are driven synchronously in opposite directions.
  • infinitely variable motor 35 or a corresponding transmission is provided for driving chain 34.
  • motor 36 likewise being infinitely variable or provided with an infinitely variable gear, drives shafts 16 carrying guide elements 17.
  • Chain 37 set into rotation by motor 36, runs over two gear wheels 38 and 39.
  • gear wheel 38 is seated on shaft 32 of one pair of crosses 23 in a freely rotatable manner, and is fixedly connected to a further gear wheel 41 for rotation therewith by means of quill shaft 40.
  • Chain 42 inserted into the teeth of this gear wheel 41, is guided via corresponding gear wheels 43 at shafts 16 of this pair of crosses 23.
  • Therotation 'of the gear wheel 42 accord inglyeffects a similar and synchronous rotation of shafts'16 and thus guide -elements 17.
  • the other gear wheel 39 is fixedly connected with gear wheel45 for rotation theiiewithby means of shaft-.44, gearwheel 45 being disposed at the other end of shafts '16.
  • Chain 46 connects gear wheel 45 with gear wheel 47 on shaft 32 of the other pair of crosses 23.
  • the latter is rotatably connected with gear wheel 49 in the manner described.
  • the assembly shown in FIG. 12 can be utilized to mount respective shafts 32.
  • lower shaft 32 is rotatably mounted on a bushing 61 which is fixed in place between walls 62 and 64 of the apparatus.
  • the upper shaft 32 is rotatably mounted on bushing 63 which is adapted to vertically move in thespace defined between walls 62 and 64.
  • a threaded spindle 66 is rotatably mounted on its bottom on bushing 61 and passes through upper bushing 63.
  • Upper bushing 63 and spindle 66 are provided with cooperating threads so that rotation of spindle 66 will cause vertical displacement of bushing 63 and hence upper shaft 32.
  • the advantages attained by the present invention reside particularly in that the web of material is continuously processed, independently of its length.
  • the entire treatment procedure such as introduction, gathering, crumpling, spreading, and removal, takes place in a purely mechanical manner requiring only monitoring functions.
  • the process and the apparatus therefor is suitable for all web-shaped and flexible flat materials which are subjected to a crumpling procedure to render them pliable or to loosen or grain same, etc.
  • the process of this invention affords a considerable simplification and acceleration of the crumpling process.
  • the present invention offers, for the first time, the opportunity to couple a crumpling device directly with a coating plant for artificial leather, so that a common manufacturing train is provided yielding, as the final product, grained artificial leather.
  • An apparatus for the continuous crumpling of a flexible, flat web to form random creases therein comprising: treatment means forrning a treatment zone for continuously and alternately gathering said web simultaneously in its longitudinal and transverse directions, said treatment means comprising a plurality of guide elements for gathering said web in said zone, said guide 6 elements arranged in succeeding rows in-the feeding direction of said 'web, the guide'elements in each row intermeshing with guide elements in adjacent rows in the direction of travel of the webthrough said zone, the 7 web being guided through said treating zone in a wavelike manner simultaneously in longitudinal and transverse dire,ctions,,,said treatment means further including'drive means for rotating said guide elements for advancing said web through said treatment means; feedingmeans for continuously supplying said web in its flat, outstretched state to said treatment means; means for continuously removing said web from said treatmet means; and means for continuously stretching and spreading out said web to yield the flexible, flat web having random creases therein; said treatment means further comprising at least two parallel rotatable axles
  • said treatment means further comprises means for varying the radial distance between said multi-pronged members.
  • said drive means includes means to rotate said multipronged members and said shafts associated therewith in an infinitely variable manner.
  • the drive means includes a central gear wheel independently and rotatably mounted on at least one of the ,axles and having means associated therewith for driving the shafts mounted on the multi-pronged member associated therewith in the same direction and synchronously.
  • An apparatus for the continuous crumpling of a flexible, flat web to form random creases therein comprising at least two multi-pronged members mounted for rotation about respective parallel axes, a plurality of parallel shafts mounted on the prongs of said multipronged members, a plurality of guide elements mounted on each shaft, said multi-pronged members, shafts and guide elements mounted so that the guide elements on the shaft of one multi-pronged member intermesh in a cogwheel manner with the guide elements on the shafts of the other multipronged member, and
  • first drive means for synchronously rotating said multi- 65- second drive means for rotating said guide elements.
  • each shaft is supported by at least two coaxial multi-pronged members.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Fiber Materials (AREA)
US207898A 1970-12-14 1971-12-14 Apparatus for the continuous wrinkling of web shaped flat materials Expired - Lifetime US3925863A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1121970A AT318123B (de) 1970-12-14 1970-12-14 Vorrichtung zum kontinuierlichen Vernarben von bahnförmigem, biegsamem Flachgut, wie Kunstlederbahnen od.dgl.

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AT (1) AT318123B (de)
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GB (1) GB1368303A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987519A (en) * 1975-09-15 1976-10-26 J. P. Stevens & Co., Inc. Apparatus for crushing cloth
US4576611A (en) * 1984-05-31 1986-03-18 Milliken Research Corporation Method for producing random-appearing patterns on fabric: nodes and line segments
US5100707A (en) * 1986-08-07 1992-03-31 Ein (America) Inc. Animal protein resin-plastic compositions and manufactures incorporating animal skins and/or leather and/or gelatin powder therein, the powder therein, and method of producing the same
US5225536A (en) * 1989-08-16 1993-07-06 Sadao Nishibori Particles of gelatin and amino acid to be blended in resins
US5814390A (en) * 1995-06-30 1998-09-29 Kimberly-Clark Worldwide, Inc. Creased nonwoven web with stretch and recovery
WO2006131950A1 (en) * 2005-06-10 2006-12-14 Fintex & Partners Italia S.P.A. Method and machine for producing a composite article
US20060288547A1 (en) * 2005-06-23 2006-12-28 3M Innovative Properties Company Zoned stretching of a web
US20070040000A1 (en) * 2005-08-19 2007-02-22 3M Innovative Properties Company Zoned stretching of a web
US20070040301A1 (en) * 2005-08-19 2007-02-22 3M Innovative Properties Company Zoned stretching of a web
ITPD20100260A1 (it) * 2010-08-20 2012-02-21 Okinawa Srl Procedimento per la produzione di un materiale simile alla pelle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108251573A (zh) * 2017-12-30 2018-07-06 广德大金机械有限公司 一种皮革压花加工设备
CN108220488A (zh) * 2017-12-30 2018-06-29 广德大金机械有限公司 一种皮革压花机
CN112895746B (zh) * 2019-12-18 2023-06-23 陆丰万鑫皮革厂有限公司 一种压花机的操作方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1196888A (en) * 1912-08-06 1916-09-05 Theodore Scherf Process of softening paper.
US1457664A (en) * 1921-12-15 1923-06-05 Silas M Ford Machine for making lath boards
US1844697A (en) * 1929-02-28 1932-02-09 Orenda Corp Method of and means for forming paper sheets
US2197147A (en) * 1935-09-28 1940-04-16 Wilfred N Hadley Cloth finishing
US2915109A (en) * 1957-05-07 1959-12-01 Richard R Walton Condensing traveling sheet materials
US2960145A (en) * 1958-07-14 1960-11-15 Ruegenberg Gottfried Method of and apparatus for manufacturing longitudinally folded or longitudinally arched, particularly longitudinally corrugated webs of paper, carton, cardboard, plastics or the like
US3188372A (en) * 1961-08-25 1965-06-08 Bird Machine Co Machine and method for compacting materials
US3466358A (en) * 1966-05-31 1969-09-09 Mueller Paul A Method of making filtering material for cigarettes
US3713219A (en) * 1968-11-28 1973-01-30 Vepa Ag Apparatus for shrinking continuous lengths of textile materials

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1196888A (en) * 1912-08-06 1916-09-05 Theodore Scherf Process of softening paper.
US1457664A (en) * 1921-12-15 1923-06-05 Silas M Ford Machine for making lath boards
US1844697A (en) * 1929-02-28 1932-02-09 Orenda Corp Method of and means for forming paper sheets
US2197147A (en) * 1935-09-28 1940-04-16 Wilfred N Hadley Cloth finishing
US2915109A (en) * 1957-05-07 1959-12-01 Richard R Walton Condensing traveling sheet materials
US2960145A (en) * 1958-07-14 1960-11-15 Ruegenberg Gottfried Method of and apparatus for manufacturing longitudinally folded or longitudinally arched, particularly longitudinally corrugated webs of paper, carton, cardboard, plastics or the like
US3188372A (en) * 1961-08-25 1965-06-08 Bird Machine Co Machine and method for compacting materials
US3466358A (en) * 1966-05-31 1969-09-09 Mueller Paul A Method of making filtering material for cigarettes
US3713219A (en) * 1968-11-28 1973-01-30 Vepa Ag Apparatus for shrinking continuous lengths of textile materials

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987519A (en) * 1975-09-15 1976-10-26 J. P. Stevens & Co., Inc. Apparatus for crushing cloth
US4576611A (en) * 1984-05-31 1986-03-18 Milliken Research Corporation Method for producing random-appearing patterns on fabric: nodes and line segments
US5171494A (en) * 1986-08-06 1992-12-15 Ein (America) Inc. Method of producing a paint which on application imparts a surface with a tanned skin or leather-like appearance
US5100707A (en) * 1986-08-07 1992-03-31 Ein (America) Inc. Animal protein resin-plastic compositions and manufactures incorporating animal skins and/or leather and/or gelatin powder therein, the powder therein, and method of producing the same
US5225536A (en) * 1989-08-16 1993-07-06 Sadao Nishibori Particles of gelatin and amino acid to be blended in resins
US5814390A (en) * 1995-06-30 1998-09-29 Kimberly-Clark Worldwide, Inc. Creased nonwoven web with stretch and recovery
WO2006131950A1 (en) * 2005-06-10 2006-12-14 Fintex & Partners Italia S.P.A. Method and machine for producing a composite article
US20060288547A1 (en) * 2005-06-23 2006-12-28 3M Innovative Properties Company Zoned stretching of a web
US20070040000A1 (en) * 2005-08-19 2007-02-22 3M Innovative Properties Company Zoned stretching of a web
US20070040301A1 (en) * 2005-08-19 2007-02-22 3M Innovative Properties Company Zoned stretching of a web
ITPD20100260A1 (it) * 2010-08-20 2012-02-21 Okinawa Srl Procedimento per la produzione di un materiale simile alla pelle
EP2420615A1 (de) * 2010-08-20 2012-02-22 OKINAWA S.r.l. Verfahren zur Herstellung eines dem Leder ähnlichen Materials

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Publication number Publication date
DE2161713A1 (de) 1972-06-22
AT318123B (de) 1974-09-25
GB1368303A (en) 1974-09-25

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