US3682747A - Apparatus for forming an impregnated paper web with corrugations or pleats - Google Patents

Apparatus for forming an impregnated paper web with corrugations or pleats Download PDF

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Publication number
US3682747A
US3682747A US18097A US3682747DA US3682747A US 3682747 A US3682747 A US 3682747A US 18097 A US18097 A US 18097A US 3682747D A US3682747D A US 3682747DA US 3682747 A US3682747 A US 3682747A
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US
United States
Prior art keywords
forming
paper web
web
corrugations
corrugation
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
US18097A
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English (en)
Inventor
Carl Georg Munters
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.)
Carl Munters AB
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Carl Munters and Co
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Filing date
Publication date
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Publication of US3682747A publication Critical patent/US3682747A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
    • 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
    • B29C53/22—Corrugating
    • B29C53/24—Corrugating of plates or sheets
    • B29C53/28—Corrugating of plates or sheets transverse to direction of feed
    • 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/242—Making webs in which the channel of each corrugation is transverse to the web feed the corrugations being obliquely inclined to the web feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B01J2219/3221—Corrugated sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/324—Composition or microstructure of the elements
    • B01J2219/32458—Paper
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1016—Transverse corrugating

Definitions

  • BACKGROUND OF THE INVENTION 'changerbodies for two fluids, of which one may be a liquid, such asvwater, and the other a gas, such as air. Examples of such fields are cooling towers, moistening devicesand the like. .Web of paper is understood to mean that the material is fibrous such as made of asbestos or cellulose fibres.
  • Material of this kind possesses in. itself very slight stability and loses much of its strength in wet condition. Therefore, it has already been proposed h'eretobefore to increase the wet strength by impregnation with a substance which is insoluble in the liquid streaming through the contact body.
  • resins which in the primary instance may consist of, or contain, phenol or melamine.
  • the addition of this substance is usually effected by wetting the paper with a liquid containing the impregnating agent or agents for which reason the paper sheets during this process acquire considerably reduced durability.
  • the material of which the sheets are composed is characterized by its very slight surface extensibility and therefore, cannot be stretched at all or to any appreciable degree without becoming damaged.
  • all of the sheets may be corrugated in which case the diagonally extending corrugations cross one another in adjoining sheets. This requires that the sheets must be produced in the corrugated shape as units which are self-sustaining before they are stacked together in cross-wise relationship and, if desired, are bonded together at the points of contact by means of an adhesive.
  • one main object of the invention is to provide a forming head which in cooperation with the form produces corrugations without subjecting the web of paper to disturbing strains or sliding movements relative to the form so that the formed corrugations acquire the predetermined height and profile within close tolerances.
  • a further object is to provide a forming head which renders possible high speed of the moving paper web and therewith high capacity of the apparatus.
  • the aforementioned objects and other advantages inherent in the invention are obtained by providing projections which are spaced radially about the rotary forming head and are movable transversally to the plane of the form in such a manner that at least one projection always retains a corrugation formed by the same and presses it against the form.
  • the forming head as a unit, i.e. including the projections, is disposed movably transversally to the plane of the form.
  • FIG. 1 is a perspective view of a forming head constructed in accordance with the invention and a portion of the elongated form cooperating with the same.
  • FIG. 2 is a sectional view following line II-II of FIG. 1 of the forming head and the form, impregnating and drying means for the paper web being also indicated, though in a reduced scale.
  • h P56 3 is a side view in a larger scale of the forming FIGS. 4 and 5 show diagrammatically the forming of a paper web with corrugations viewed at two different positions relative one another of the form and the battens or vanes of the forming head.
  • a forming head is generally denoted 10 and an endless forming belt the represented portion of which is denoted 12.
  • the endless belt may be composed of a series of plates or sheet metal parts 14 arranged in sequence one behind the other and formed with mutually parallel corrugations or grooves 16 extendmg diagonally over each plate 14.
  • the endless belt travels relatively to a fixed frame 18 in the direction indicated in FIGS. .1 and 2. by arrow 20.'If the forming belt is composed of plates 14 of the type just described it can cooperate with a driving mechanism in accordance with the disclosure in the -U.S. Pat. No. 3,470,280 to provide a closed circuit, the upper horizontalv portion of which is represented in the figures of this application and denoted 12. r
  • the forming head.10 includes a cylinder 22,which about its circumference has radially projecting battens or vanes 24 which may consist of a non-metallic material such as polytetrafluoroethylene or some other plastic material.
  • the battens or vanes are equally, distributed about the circumference of the cylinder 22 and are in the embodiment rigidly secured thereon e.g. by means of L-shaped holders 26.
  • the forming head and the battens 24 are positioned diagonally in relation to the direction 20 of travel of the belt portion 12 in such a manner that they are in parallel with the 1ongitudi'nal extension of the grooves 16..
  • the battens 24 are spaced from one another at their'outer periphery a distance equal to the distance between the bottoms of two adjacent grooves.
  • the forming head is mounted at each of its ends in links 30 by means of a journal 28, which links in turn by means of taps 3.2 are mounted in brackets 34 fixedly connected with the frame 1 8.
  • the journals 28 and the taps 32 are located at least at approximately the same level about the upper portion 12 of the forming belt. In this way, the battens 24 of the forming head 10 can be swung upwards and downwards along a path which with a little amplitude of movement is approximately straight and which is perpendicular to the plane of the underlying forming belt portion 12.
  • the forming head 10 maybe kept pressed againstthe forming belt portion in addition to its own-weight by means of a spring member 36 provided on.one or both sides of the forming belt portion. The downward turn.-
  • ing of the forming head 10 in direction towards the forming belt portion may be limited by means of setting-screws 38, one of which is screwed through a support 40 carried by the frame 18 and located at each end of the forming head.
  • the setting screw can be adjusted and locked at various positions by means of a nut 42.
  • FIG. 2 shows the means for impregnation of the paper web and driving thereof followed by the pleating or corrugating operation.
  • a storage roll 44 consisting of e.g. v asbestos paper which is mounted on a shaft 46 in a frame impregnating liquid is of such a kind that after heat treatment it imparts required mechanical strength to theasbestos sheet material both in dry and in wet condition and also makes it resistant to attacks of various nature onthe material.
  • This liquid may consist of a solvent and one or more impregnating agents dissolved therein.
  • melamine dissolved in water, said liquid, if desired, containing a minor quantity of alcohol and a catalyst to accelerate the conversion of the melamine into solid, water-insoluble form.
  • the web 50 of asbestos which suitably has a thickness of about one or some tenth of a millimeter is conducted after impregnation between the forming head 10 and the forming belt portion 12 at a predetermined oblique angle as is described in greater detail in the abovementioned patent, so that the direction of movement of the corrugated paper web becomes parallel withthe direction 2t) of movement of the forming belt portion.
  • the forminghead '10 does not necessarily have its own driving means, but may be carried along in its rotational movement about the journals 28 by the plates 14 passing underneat'hthe same.
  • FIGS. 4 and 5 show diagrammaticallythree battens 24a, 24b, 24c, which rotate about the axis 24 of rotation of the forming head in the direction indicated by the arrow 25.
  • a batten "24a' has during the rotation oftheforrriing head reached a' position' directly below the axis 27 of rotation of the forming head.
  • the batten 24a has formed a corrugation in the paper web 50 and bears under the action exerted by the spring member 36 against: the bottom of that groove 16a with which the batten .-24a cooperates.
  • the forming head has been raised upwards againstthe action of the spring member 36 so that the batten 24a can pass between the forming h ead and the forming belt portion.
  • the batten 24b has -commenced to force a new corrugation formed in the paper web 50 down into the next following grooye 16b.
  • the batten 24b moves downwards towards the bottom of the groove. 16b.
  • the batten 24a is during the continued rotation of the forming head imparted an up wards directed component of movement relative to the. axis of rotation 27 of the forming head, but due to,,the. ,mov
  • battens 24a and 24b are positioned, as shown in FIG. 5, symmetrically relatively to a'vertical plane through the shaft 27 of the forming head and thus are bothactive in retaining its associated paper corrugation pressed against the form grooves 16a and 16b, respectively.
  • the contact pressure against the'forniing belt portion is taken over by the batten 24b while the forming head anew performs an upwards movement while the next following batten 24c draws down the corrugation formed by it, etc.
  • the length of the battens and .the spacing therebetween must be adjusted in such a-manner that the edge of the batten 240 in FIG. 5 facing'the paper web in the position when the batten 24b has reached the bottommust not havev reached full contact with the paper web and in e'very case must notbe positioned substantially lower than the ridges of the forming belt portion. It is understood that dueto the continuous pressure ofithe battens against the forming belt portion '12 which,
  • the finished corrugations can be retained in the grooves of the form by means of reduced pressure produced in a space defined by a hood 58 at the underside of the forming belt portion 12.
  • the vacuum space is through a conduit '60 in connection with a suction side of a fan or the like (not shown).
  • the plates 14 are perforated so that the reduced pressure in the space 58 can be propagated to the paper web.
  • This web can finally be dried or hardened while still resting in the grooves of the forming belt portion 12 by supply of heat such as radiated heat from an electric heating furnace 62.
  • This device as Well as means for removal of the finally corrugated paper web from the forming belt and its severing into individual sheets is described e.g. in the patent specification referred to above.
  • the battens or vanes 24 are preferably stitf so that they will not or only insignificantly flex laterally when they form the corrugations of the paper web.
  • the battens or vanes 24 may be individually resilient either by themselves or by means of a specific resilient mounting on the cylindrical portion of the forming head so that they can move radially relative to said part.
  • the forming head may be stationary.
  • Apparatus for producing a corrugated sheet from a web of deformable material comprising:
  • said molding belt having a series of grooves extending across the belt diagonally to the direction of the longitudinal direction thereof;
  • (f) means providing resilient displacement of said members with respect to said belt when the Web is depressed into the groove so as to retain the corrugated web in forced contact therein for a limited longitudinal movement of the web by said molding belt until a succeeding member has formed a successive corrugation.
  • Apparatus according to claim 1 having means for impregnating the web with a liquid solution comprising a trough mounted adjacent the feeding end of the belt for immersing the web therein.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Reinforced Plastic Materials (AREA)
  • Paper (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US18097A 1969-03-11 1970-03-10 Apparatus for forming an impregnated paper web with corrugations or pleats Expired - Lifetime US3682747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE03352/69A SE356254B (enrdf_load_stackoverflow) 1969-03-11 1969-03-11

Publications (1)

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US3682747A true US3682747A (en) 1972-08-08

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US (1) US3682747A (enrdf_load_stackoverflow)
BE (1) BE746984A (enrdf_load_stackoverflow)
FR (1) FR2037913A5 (enrdf_load_stackoverflow)
GB (1) GB1257411A (enrdf_load_stackoverflow)
SE (1) SE356254B (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49126768A (enrdf_load_stackoverflow) * 1973-03-13 1974-12-04
US3993425A (en) * 1975-03-20 1976-11-23 The Real-Reel Corporation Apparatus for forming diagonally corrugated paperboard
US4048278A (en) * 1973-05-17 1977-09-13 Intalite International N.V. Method for manufacturing dimensionally-stable shaped articles
US4345964A (en) * 1979-10-29 1982-08-24 Scholander Stig S W Apparatus for the application of a pliable web of material onto corrugated sheet
WO1986003928A1 (en) * 1984-12-20 1986-07-03 Lff And Associates Method and devices for making electro-acoustic transducer apparatus
US4604792A (en) * 1984-12-20 1986-08-12 Lff & Associates Method for making electro-acoustic transducer apparatus
US6533253B1 (en) 2001-03-29 2003-03-18 General Shelters Of Texas, S.B. Ltd. Light attenuating evaporative cooling pad
US20080020080A1 (en) * 2006-06-28 2008-01-24 Marschke Carl R Method and Apparatus for Manufacturing Open Core Elements from Web Material
US20080078495A1 (en) * 2006-06-28 2008-04-03 Carl Marschke Web Fluting Apparatus and method of Forming Open Core Web Elements
CN114714673A (zh) * 2022-03-29 2022-07-08 青州市祥力轻工设备有限公司 水帘块纸带连续瓦楞成形系统
CN119657363A (zh) * 2025-02-19 2025-03-21 泰兴市春雷仪表有限公司 一种基于水表加工的表壳静电喷涂装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111760545B (zh) * 2020-06-30 2022-05-06 昆山新普发塑料有限公司 一种仿蜘蛛网式的塑料填料

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49126768A (enrdf_load_stackoverflow) * 1973-03-13 1974-12-04
US4048278A (en) * 1973-05-17 1977-09-13 Intalite International N.V. Method for manufacturing dimensionally-stable shaped articles
US3993425A (en) * 1975-03-20 1976-11-23 The Real-Reel Corporation Apparatus for forming diagonally corrugated paperboard
US4345964A (en) * 1979-10-29 1982-08-24 Scholander Stig S W Apparatus for the application of a pliable web of material onto corrugated sheet
WO1986003928A1 (en) * 1984-12-20 1986-07-03 Lff And Associates Method and devices for making electro-acoustic transducer apparatus
US4604792A (en) * 1984-12-20 1986-08-12 Lff & Associates Method for making electro-acoustic transducer apparatus
US6533253B1 (en) 2001-03-29 2003-03-18 General Shelters Of Texas, S.B. Ltd. Light attenuating evaporative cooling pad
US6613182B1 (en) * 2001-03-29 2003-09-02 General Shelters Of Texas, S.B., Ltd. Light attenuating evaporative cooling pad
US20080020080A1 (en) * 2006-06-28 2008-01-24 Marschke Carl R Method and Apparatus for Manufacturing Open Core Elements from Web Material
US20080078495A1 (en) * 2006-06-28 2008-04-03 Carl Marschke Web Fluting Apparatus and method of Forming Open Core Web Elements
CN114714673A (zh) * 2022-03-29 2022-07-08 青州市祥力轻工设备有限公司 水帘块纸带连续瓦楞成形系统
CN114714673B (zh) * 2022-03-29 2024-01-02 青州市祥力轻工设备有限公司 水帘块纸带连续瓦楞成形系统
CN119657363A (zh) * 2025-02-19 2025-03-21 泰兴市春雷仪表有限公司 一种基于水表加工的表壳静电喷涂装置

Also Published As

Publication number Publication date
SE356254B (enrdf_load_stackoverflow) 1973-05-21
FR2037913A5 (enrdf_load_stackoverflow) 1970-12-31
BE746984A (fr) 1970-08-17
GB1257411A (enrdf_load_stackoverflow) 1971-12-15
DE2010568A1 (de) 1970-09-24

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