EP0095122A2 - Procédé continu pour le traitement par la chaleur et/ou la pression de matériaux plats souples et flexibles et installation pour l'application du procédé - Google Patents

Procédé continu pour le traitement par la chaleur et/ou la pression de matériaux plats souples et flexibles et installation pour l'application du procédé Download PDF

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Publication number
EP0095122A2
EP0095122A2 EP83104823A EP83104823A EP0095122A2 EP 0095122 A2 EP0095122 A2 EP 0095122A2 EP 83104823 A EP83104823 A EP 83104823A EP 83104823 A EP83104823 A EP 83104823A EP 0095122 A2 EP0095122 A2 EP 0095122A2
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EP
European Patent Office
Prior art keywords
flat material
work surface
piece
continuous
belt
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.)
Withdrawn
Application number
EP83104823A
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German (de)
English (en)
Other versions
EP0095122A3 (fr
Inventor
Kurt Hacker
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0095122A2 publication Critical patent/EP0095122A2/fr
Publication of EP0095122A3 publication Critical patent/EP0095122A3/fr
Withdrawn legal-status Critical Current

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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
    • C14B1/30—Pressing or rolling leather
    • 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
    • C14B1/30—Pressing or rolling leather
    • C14B1/34—Pressing or rolling leather by rotating movement of the pressing or rolling elements

Definitions

  • the invention relates to a continuous process for the heat and / or pressure treatment of soft-flexible flat material pieces according to the preamble of claim 1. It also relates to a device for such a continuous treatment according to the preamble of claims 8 and 12 respectively.
  • the length of the continuous path for a heat or pressure treatment of the aforementioned type is not only determined by the length of the pieces of material to be processed, but possibly. also by the duration of the treatment, which is often greater than the time interval corresponding to the length of the material, given the throughput speed given by the processing power or limited by material properties and treatment conditions. In some cases, the result is an undesirably large dimensioning of the continuous path length or the drum diameter in the conventional continuous machines.
  • the object of the invention is therefore to provide a continuous process which, with only a certain length of the continuous path or machine size determined by the maximum length of material, enables an increase in the duration of the treatment without complicated process handling.
  • the solution to this problem according to the invention is characterized in a method of the type mentioned at the outset by the features of claim 1.
  • the given number of material circulations which can be carried out in one work step without additional handling measures, allows the desired extension of the treatment time with little effort and without the use of larger continuous machines.
  • the term "plurality of revolutions” is not only to be understood as an integral multiple of such revolutions, but possibly also a predetermined number of full revolutions plus a partial circulation, depending on the choice or setting of the starting or lifting point of the material pieces from the work surface.
  • a fine adjustment of the treatment time to the respective requirements can also be achieved by comparatively minor changes in the throughput speed.
  • a largely automated operation is advantageously simple and requires comparatively little outlay on equipment.
  • the reversal of the lifting device can advantageously be done by means of one of the passages Remarkable points of the flat material pieces, the leading or trailing edge, and a feeler actuated circulation example - be controlled tung Zählvorrich-.
  • Such devices are known per se and require no further explanation.
  • the continuous treatment device belonging to the subject matter of the invention is particularly suitable for the procedure explained above, but is also suitable for other continuous treatments of flexible, flexible flat material, i.e. regardless of the number of treatment cycles or the size of a partial cycle.
  • a treatment device with these features is generally distinguished from conventional drum and belt conveyor devices in that the overall height can be significantly reduced as a result of the omission of a drum forming the entire working surface with its diameter corresponding to the length of the material.
  • the replacement of such a drum by a succession of opposing conveyor belt sections generally results in a substantial reduction in manufacturing costs, especially in machines for the treatment of large pieces of flat material, such as whole hides in tanning and leather processing.
  • a continuous working surface UFA is formed by the outer peripheral surface of a drum T, which is driven in the usual manner in the direction of arrow P.
  • the work surface is covered with small, design-related gaps by a belt arrangement BDA, which consists of two belts Bl and B2 that run around each other. The direction of movement of these belts is indicated by the arrows P1 and P2.
  • the inner dreams TR1 and TR2 of these tapes lie with tension on the work surface UFA or on the flat material piece FM moving synchronously along the continuous path D B with the work surface.
  • a radiation heater rotatably mounted and heated with their distributed over the drum circumference radiators arranged SR the Ar b eits Structure, which is in continuous Auffilberlickung with the piece of material.
  • One piece of flat material each can run over a predetermined number of cycles and can thus be kept under the influence of heat and pressure for an arbitrarily adjustable period of time.
  • This pressurization can be kept very low if the treatment requires this by setting the belt tension to a correspondingly low level, if necessary until the pressure is practically depressurized, for a mere heat treatment, with the belt arrangement BDA only providing guidance of the flat material in contact with the work surface.
  • a stronger and, in particular, a pressurization concentrated over part of the continuous path and extending across the width of the continuous path can be achieved by means of special pressure rollers inside or outside the belt arrangement, e.g. with the pressure roller DR pressed radially against the drum The direction of the arrow can be pressed on continuously or intermittently using conventional means, not shown.
  • intermittently controlled pressing a longer lasting, low-pressure heating with multiple circulation of a piece of material with subsequent stronger pressurization for smoothing and strengthening an adhesive bond or for other, special process sequences can also be achieved.
  • the material can be guided through a plurality of spatially consecutive pressure zones within a single pass, as can be used, for example, for ironing or embossing leather.
  • the part of the belt arrangement which is elongated in the area in front of the drum forms a moving feed surface ZF, which enables gentle and wrinkle-free introduction of the material into the continuous path DB.
  • the material leading edge VK is detected by an appropriately controlled lifting device AHV and led out of the continuous path.
  • a suction roll SW with a sector control SST assigned to the lift-off area of the continuous path is provided.
  • the suction sector of the roller shown in FIG. 1 which is formed by a conventional type of valve body arranged in the interior of the roller, acts on the material through the porous or perforated roller jacket rotating in the direction of arrow P3 and lifts it from the front edge VK progressively from the UFA work surface.
  • the suction roll is connected via a control valve STV to a suction line effective according to arrow P4 closed.
  • the timely activation of the lifting device is achieved by means of a circulation control device UST actuating the control valve, which in turn is controlled by a sensing device (not shown) that detects a prominent point on the material piece passing through.
  • the activation command is then given with conventional counting and control means upon completion of a predetermined number of cycles.
  • the material leading edge VK thus reaches an outlet and removal surface AF according to arrow P5.
  • the lifting device AHVl shown in FIG. 2 works with a mechanical lifting element in the form of a swivel knife SM, which is raised with its cutting edge in the open position SD from the drum circumference, but in the lifting-active position SA under light pressure - in each case in good time before the front edge of the material arrives - is pressed against the circumference of the drum and then progressively deflects the flat material from the work surface UFA and directs it to the outlet and removal surface AF.
  • a mechanical lifting element in the form of a swivel knife SM which is raised with its cutting edge in the open position SD from the drum circumference, but in the lifting-active position SA under light pressure - in each case in good time before the front edge of the material arrives - is pressed against the circumference of the drum and then progressively deflects the flat material from the work surface UFA and directs it to the outlet and removal surface AF.
  • the continuous machine according to FIG. 3 is characterized by a low overall height even for long continuous path lengths.
  • the continuous path DB1 is formed by a plurality of pairs of mutually opposite, straight-line sections Ala, Alb and A2a, A2b of two strips arranged one after the other in the direction of passage B3 and B4 formed.
  • the former runs over two deflection or drive rollers U1, U2 of comparatively small diameter, which are mounted in a plane and axially parallel to one another, and over the parallel longitudinal surfaces of a support body SK1, while the latter is also guided over unspecified deflection rollers, also of small diameter and support body SK2a, SK2b.
  • the belt B3 thus forms a first, inner belt arrangement (it can optionally also consist of several individual belts rotating in each case), which is encompassed by a second, outer belt arrangement on the major part of its circumference, so that a closed material flow path is formed without a drum results.
  • the second belt arrangement is completed by a further belt B5 which runs around itself and which surrounds the deflection roller U2.
  • the belt B5 contains a sub-belt arrangement VBA which is adjustable between a closing or working position I and an open position II according to arrows VB in accordance with the usual guideways with suitable drive and control means and which in position II has a feed area ZB of the through path DB1. releases and thereby forms a feed surface ZF for pieces of material to be introduced into the continuous path.
  • VBA sub-belt arrangement
  • the continuous path between the mutually facing working surfaces F1, F2 and F3 of the belts is enclosed over almost their entire length, so that there is a uniform and wrinkle-free material flow.
  • a lifting device AHV is again similar to that according to Fig.l with a sector suction roller SW and an associated circulation control device UST and (not shown here) control valve. STV provided.
  • the control device UST is controlled by a schematically indicated material edge sensing element TO of a conventional sensing device, so that the number of revolutions can be recorded.
  • the lifting device AHV is followed by an outlet and removal surface AF which is directed antiparallel to the preceding section of the through path DB1 and which simplifies the removal operation and contributes to the low overall height of the machine.
  • the suction sector of the roller SW extends to above about 180 0 between the throughput path and the run-out and detaching surface AF.

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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)
  • Coating Apparatus (AREA)
EP83104823A 1982-05-14 1983-05-16 Procédé continu pour le traitement par la chaleur et/ou la pression de matériaux plats souples et flexibles et installation pour l'application du procédé Withdrawn EP0095122A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3360/82 1982-05-14
CH336082 1982-05-14

Publications (2)

Publication Number Publication Date
EP0095122A2 true EP0095122A2 (fr) 1983-11-30
EP0095122A3 EP0095122A3 (fr) 1984-09-19

Family

ID=4254290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104823A Withdrawn EP0095122A3 (fr) 1982-05-14 1983-05-16 Procédé continu pour le traitement par la chaleur et/ou la pression de matériaux plats souples et flexibles et installation pour l'application du procédé

Country Status (1)

Country Link
EP (1) EP0095122A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992010592A1 (fr) * 1990-12-10 1992-06-25 Jiri Dokoupil Installation de traitement de cuirs, peaux, fourrures et matieres similaires
EP1024202A2 (fr) * 1999-01-27 2000-08-02 Industrie Meccaniche Bergi-OFB S.p.A. Machine pour le placage et l'estampage continu des peaux ou similaires

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1428329A (en) * 1920-07-24 1922-09-05 Indianapolis Saddlery Company Drying and feeding mechanism for pasted strips
DE513873C (de) * 1927-01-27 1930-12-05 Turner Ag Maschf Maschine zum Pressen von Leder o. dgl.
US1878420A (en) * 1930-01-03 1932-09-20 Tanning Process Co Machine for treating hides, skins, and leathers
US3316655A (en) * 1963-04-16 1967-05-02 Bocciardo Paolo Apparatus for drying tanned skins under vacuum
FR1582343A (fr) * 1967-10-12 1969-09-26
DE2010824A1 (de) * 1969-04-28 1970-11-05 Statni Vyzkumny Ustav Kozedelny, Gottwaldov (Tschechoslowakei) Verfahren und Vorrichtung zum Trocknen von Leder
GB1441113A (en) * 1972-11-03 1976-06-30 Strojosvit Np Continuously operating machine for pressing ironing or producing patterns on sheet material
US4111013A (en) * 1977-07-05 1978-09-05 Northern Conveyor & Manufacturing Corp. Method of and machine for removing oil from animal hides
CH610009A5 (fr) * 1975-08-30 1979-03-30 Fiedler Otto Karl
EP0002739A1 (fr) * 1977-12-22 1979-07-11 Louis Schweizer GmbH & Co. KG Lederfabrik Presse à essorer

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1428329A (en) * 1920-07-24 1922-09-05 Indianapolis Saddlery Company Drying and feeding mechanism for pasted strips
DE513873C (de) * 1927-01-27 1930-12-05 Turner Ag Maschf Maschine zum Pressen von Leder o. dgl.
US1878420A (en) * 1930-01-03 1932-09-20 Tanning Process Co Machine for treating hides, skins, and leathers
US3316655A (en) * 1963-04-16 1967-05-02 Bocciardo Paolo Apparatus for drying tanned skins under vacuum
FR1582343A (fr) * 1967-10-12 1969-09-26
DE2010824A1 (de) * 1969-04-28 1970-11-05 Statni Vyzkumny Ustav Kozedelny, Gottwaldov (Tschechoslowakei) Verfahren und Vorrichtung zum Trocknen von Leder
GB1441113A (en) * 1972-11-03 1976-06-30 Strojosvit Np Continuously operating machine for pressing ironing or producing patterns on sheet material
CH610009A5 (fr) * 1975-08-30 1979-03-30 Fiedler Otto Karl
US4111013A (en) * 1977-07-05 1978-09-05 Northern Conveyor & Manufacturing Corp. Method of and machine for removing oil from animal hides
EP0002739A1 (fr) * 1977-12-22 1979-07-11 Louis Schweizer GmbH & Co. KG Lederfabrik Presse à essorer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992010592A1 (fr) * 1990-12-10 1992-06-25 Jiri Dokoupil Installation de traitement de cuirs, peaux, fourrures et matieres similaires
EP1024202A2 (fr) * 1999-01-27 2000-08-02 Industrie Meccaniche Bergi-OFB S.p.A. Machine pour le placage et l'estampage continu des peaux ou similaires
EP1024202A3 (fr) * 1999-01-27 2001-03-07 Industrie Meccaniche Bergi-OFB S.p.A. Machine pour le placage et l'estampage continu des peaux ou similaires

Also Published As

Publication number Publication date
EP0095122A3 (fr) 1984-09-19

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