EP0095122A2 - Continuous process for heat and/or pressure treatment of soft, flexible flat materials, and apparatus for the application of the process - Google Patents
Continuous process for heat and/or pressure treatment of soft, flexible flat materials, and apparatus for the application of the process Download PDFInfo
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- 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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- Prior art keywords
- flat material
- work surface
- piece
- continuous
- belt
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- 239000000463 material Substances 0.000 title claims abstract description 66
- 238000011282 treatment Methods 0.000 title claims abstract description 19
- 238000010924 continuous production Methods 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims description 15
- 230000004087 circulation Effects 0.000 claims description 11
- 239000010985 leather Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 230000002250 progressing effect Effects 0.000 claims description 2
- 230000000750 progressive effect Effects 0.000 claims 2
- 230000002441 reversible effect Effects 0.000 claims 1
- 230000004913 activation Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000010409 ironing Methods 0.000 description 2
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
-
- 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)
Abstract
Description
Die Erfindung bezieht sich auf ein Durchlaufverfahren zur Wärme-und/oder Druckbehandlung von weichflexiblen Flachmaterialstücken nach dem Oberbegriff des Anspruchs 1. Sie bezieht sich ferner auf eine Einrichtung für eine solche Durchlaufbehandlung nach dem Oberbegriff des Anspruchs 8 bzw. 12.12. 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.
Die Länge der Durchlaufbahn für eine Wärme- bzw. Druckbehandlung der vorgenannten Art ist nicht nur durch die Länge der zu verarbeitenden Materialstücke bestimmt, sondern u.U. auch durch die Zeitdauer der Behandlung, die bei durch die Verarbeitungsleistung gegebener oder durch Materialeigenschaften und Behandlungsbedingungen begrenzter Durchlaufgeschwindigkeit oft grösser als das der Materialstücklänge entsprechende Zeitintervall erwünscht ist. Die Folge ist in manchen Fällen eine unerwünscht grosse Bemessung der Durchlaufbahnlänge bzw. des Trommeldurchmessers bei den üblichen Durchlaufmaschinen.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.
Aufgabe der Erfindung ist daher die Schaffung eines Durchlaufverfahrens, das bei nur durch die maximale Materialstücklänge bestimmter Durchlaufbahnlänge bzw. Maschinengrösse eine Erhöhung der Behandlungsdauer ohne komplizierte Verfahrenshandhabung ermöglicht. Die erfindungsgemässe Lösung dieser Aufgabe kennzeichnet sich bei einem Verfahren der eingangs genannten Art durch die Merkmale des Anspruchs 1.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.
Die damit gegebene Mehrzahl von Materialumläufen, die in einem Arbeitsgang ohne zusätzliche Handhabungsmassnahmen durchführbar ist, erlaubt die erstrebte Ausdehnung der Behandlungsdauer mit geringem Arbeitsaufwand und ohne Einsatz grösserer Durchlaufmaschinen. Dabei ist unter "Mehrzahl von Umläufen" nicht nur ein ganzzahliges Vielfaches solcher Umläufe zu verstehen, sondern gegebenenfalls auch eine vorgegebene Anzahl von vollen Umläufen zuzüglich eines Teilumlaufes, je nach der Wahl bzw. Einstellung der Ausgangs- bzw. Abhebestelle der Materialstücke von der Arbeitsfläche. Eine Feinanpassung der Behandlungsdauer an die jeweiligen Erfordernisse kann zusätzlich durch vergleichsweise geringfügige Veränderung der Durchlaufgeschwindigkeit erzielt werden.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.
Bei der erfindungsgemässen Einrichtung zur Durchführung des Verfahrens gemäss Anspruch 8 gestaltet sich eine weitgehend automatisiert gesteuerte Arbeitsweise vorteilhaft einfach und erfordert vergleichs weise geringen apparativen Aufwand. Die Umsteuerung der Abhebevorrichtung kann hierzu vorteilhaft mittels eines von den Durchgängen markanter Stellen der Flachmaterialstücke, z.B. der Vorder- oder Hinterkante, betätigten Tastorgans und einer Umlauf-Zählvorrich- tung gesteuert werden. Solche Einrichtungen sind an sich bekannt und bedürfen keiner näheren Erläuterung.In the device according to the invention for carrying out the method according to claim 8, 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.
Die zum Erfindungsgegenstand gehörende Durchlaufbehandlungseinrichtung gemäss den Merkmalen des Anspruchs 12 eignet sich besonders für die vorstehend erläuterte Verfahrensweise, ist jedoch auch für sonstige Durchlaufbehandlungen von weichflexiblem Flachmaterial geeignet, also unabhängig von der Anzahl der Behandlungsumläufe bzw. von der Grösse eines Teilumlaufes. Eine Behandlungseinrichtung mit diesen Merkmalen zeichnet sich nämlich allgemein dadurch vor üblichen Trommel- und Band-Durchlaufeinrichtungen vorteilhaft aus, dass die Bauhöhe infolge Fortfalls einer die gesamte Arbeitsfläche bildenden Trommel mit ihrem der Materialstücklänge entsprechenden Durchmesser wesentlich vermindert werden kann. Der Ersatz einer solchen Trommel durch eine Aufeinanderfolge von einander gegenüberliegenden Umlaufbandabschnitten ergibt im übrigen an sich schon im allgemeinen eine wesentliche Verminderung des Herstellungsaufwandes, vor allem bei Maschinen für die Behandlung von grossen Flachmaterialstücken, wie ganzen Häuten in der Gerberei und Lederverarbeitung.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.
Als bevorzugte Anwendungsbeispiele für das erfindungsgemässe Verfahren und die Einrichtungen sind zu nennen: Glätten (Bügeln), Zurichten (Appretieren) und Verkleben von Leder und Textilien. Weitere Merkmale und Vorteile der Erfindung werden unter Bezugnahme auf die in den Zeichnungen dargestellten Ausführungsbeispiele erläutert. Hierin zeigt:
- Fig. 1 einen schematischen Vertikalschnitt einer Mehrfachumlauf-Trommelmaschine mit Abhebevorrichtung für die Materialstücke, Schnittebene quer zur Trommelachse,
- Fig. 2 einen Teilschnitt entsprechend Figur 1 in grösserem Massstab mit einer abgewandelten Ausführung einer Abhebevorrichtung und
- Fig. 3 einen schematischen Vertikalschnitt - Schnittebene parallel zur Durchlaufrichtung - einer trommelfreien Mehrfachband-Durchlaufmaschine, ebenfalls eingerichtet für Mehr- fachumläufe je eines Materialstückes.
- 1 is a schematic vertical section of a multi-revolution drum machine with lifting device for the material pieces, cutting plane transverse to the drum axis,
- Fig. 2 is a partial section corresponding to Figure 1 on a larger scale with a modified version of a lifting device and
- Figure 3 is a schematic vertical section -.-Sectional plane parallel to the direction of - a drum-free multi-belt continuous machine also adapted for multi f achumläufe per a piece of material.
Bei der Durchlaufmaschine nach Fig.l ist eine in sich umlaufende Arbeitsfläche UFA durch die äussere Umfangsfläche einer Trommel T gebildet, die in Richtung des Pfeils P in an sich üblicher Weise angetrieben wird. Die Arbeitsfläche ist mit geringen, konstruktiv bedingten Lücken durch eine Bandanordnung-BDA abgedeckt, die aus zwei in sich umlaufenden Bändern Bl und B2 besteht. Die Bewegungsrichtung dieser Bänder ist durch die Pfeile Pl bzw. P2 bezeichnet.In the continuous machine according to FIG. 1, 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.
Die inneren Trume TR1 und TR2 dieser Bänder liegen mit Spannung an der Arbeitsfläche UFA bzw. an dem sich längs der Durchlaufbahn DB mit der Arbeitsfläche synchron bewegenden Flachmaterialstück FM. Im Innenraum der Trommel T ist auf der Trommelachse X eine Strahlungsheizvorrichtung drehfest gelagert und heizt mit ihren über den Trommelumfang verteilt angeordneten Strahlern SR die Ar- beitsfläche auf, die in stetiger Aufheizberührung mit dem Materialstück steht. Je ein Flachmaterialstück kann über eine vorgegebene Anzahl von Umläufen geführt und so während einer beliebig einstellbaren Zeitdauer unter Wärmeeinwirkung und Druckbeaufschlagung gehalten werden. Diese Druckbeaufschlagung kann sehr gering gehalten werden, wenn die Behandlung dies erfordert, indem die Bandspannung entsprechend gering eingestellt wird, gegebenenfalls bis zur praktischen Drucklosigkeit für eine blosse Wärmebehandlung, wobei die Bandanordnung BDA nur noch der Führung des Flachmaterials in Anlage an der Arbeitsfläche sorgt.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. In the interior of the drum T to the drum axis X is a radiation heater rotatably mounted and heated with their distributed over the drum circumference radiators arranged SR the Ar b eitsfläche, which is in continuous Aufheizberührung 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.
Umgekehrt kann eine stärkere und insbesondere eine auf einen Teil der Durchlaufbahn konzentrierte, sich über die Breite der Durchlaufbahn erstreckende Druckbeaufschlagung mittels besonderer Druckwalzen innerhalb der Bandanordnung oder auch ausserhalb derselben erzielt werden, z.B. mit der in Radialrichtung gegen die Trommel angepressten Druckwalze DR. Diese kann in Pfeilrichtung stetig oder auch intermittierend mit an sich üblichen, nicht dargestellten Mitteln angepresst werden. Es ergibt sich damit innerhalb einer vorgegebenen Anzahl von Materialumläufen eine über die Materialstücklänge fortschreitende, konzentrierte Druckbeaufschlagung, wie sie z.B. für Verklebungsarbeiten an Flachmaterialpaarungen angewendet wird. Mittels intermittierend gesteuerter Anpressung kann auch eine länger andauernde, druckarme Aufheizung unter mehrfachem Umlauf eines Materialstückes mit anschliessend stärkerer Druckbeaufschlagung zur Glättung und Verfestigung einer Verklebung oder für andere, spezielle Verfahrensabläufe erzielt werden. Insbesondere kann das Material dabei innerhalb je eines Durchlaufes durch eine Mehrzahl von räumlich aufeinanderfolgenden Druckzonen gefüher werden, wie dies z.B. für Zwecke des Bügelns oder auch des Prägens von Leder anwendbar ist. Der im Bereich vor der Trommel verlängert ausgebildete Teil der Bandanordnung bildet eine bewegte Zuführfläche ZF, die eine schonende und faltenfreie Einführung des Materials in die Durchlaufbahn DB ermöglicht.Conversely, 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. This results in a concentrated pressurization progressing over the length of the material within a predetermined number of material circulations, as it is used for example for bonding work on flat material pairings. By means of 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. In particular, 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.
Nach einer vorgegebenen Anzahl von Materialumläufen wird die Materialvorderkante VK von einer entsprechend gesteuerten Abhebevorrichtung AHV erfasst und aus der Durchlaufbahn herausgeführt. Hierzu ist eine Saugwalze SW mit einer dem Abhebebereich der Durchlaufbahn zugeordneten Sektorsteuerung SST vorgesehen. Der aus Fig.l ersichtliche Saugsektor der Walze, der durch einen im Walzeninneren feststehend angeordneten Ventilkörper an sich üblicher Art gebildet wird, wirkt durch den porösen oder perforierten, in Richtung des Pfeils P3 rotierenden Walzenmantel auf das Material ein und hebt dieses von der Vorderkante VK aus fortschreitend von der Arbeitsfläche UFA ab. Die Saugwalze ist hierzu über ein Steuerventil STV an eine gemäss Pfeil P4 wirksame Saugleitung angeschlossen. Die zeitgerechte Aktivierung der Abhebevorrichtung wird mittels einer das Steuerventil betätigenden Umlauf-Steuervorrichtung UST erreicht, die ihrerseits von einer nicht dargestellten, eine markante Stelle des durchlaufenden Materialstückes erfassenden Abfühleinrichtung gesteuert wird. Der Aktivierungsbefehl wird dann mit an sich üblichen Zähl- und Steuermitteln bei Vollendung einer vorgegebenen Umlaufzahl gegeben. Die Materialvorderkante VK gelangt so gemäss Pfeil P5 auf eine Auslauf- und Abnahmefläche AF.After a predetermined number of material circulations, the material leading edge VK is detected by an appropriately controlled lifting device AHV and led out of the continuous path. For this purpose, 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. For this purpose, 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.
Die in Fig.2 dargestellte Abhebevorrichtung AHVl arbeitet im Gegensatz zu der vorbeschriebenen mit einem mechanischen Abhebeorgan in Gestalt eines Schwenkmessers SM, das mit seiner Schneide in der Durchlassstellung SD vom Trommelumfang abgehoben ist, in der Abhebe-Wirkstellung SA jedoch unter leichtem Druck - jeweils rechtzeitig vor Eintreffen der Materialvorderkante - an den Trommelumfang gedrückt wird und das Flachmaterial anschliessend fortschreitend von der Arbeitsfläche UFA ablenkt und auf die Auslauf-und Abnahmefläche AF leitet.In contrast to that described above, 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.
Die Durchlaufmaschine nach Fig.3 zeichnet sich durch geringe Bauhöhe auch für grosse Durchlaufbahnlängen aus. Hierzu wird die Durchlaufbahn DB1 durch eine Mehrzahl von in Durchlaufrichtung nacheinander angeordneten Paaren von einander gegenüberliegenden, geradlinig geführten Abschnitten Ala, Alb und A2a, A2b zweier Bänder B3 und B4 gebildet. Ersteres läuft über zwei in einer Ebene und zueinander achsparallel gelagerte Umlenk- bzw. Antriebswalzen Ul, U2 vergleichsweise geringen Durchmessers sowie über die zueinander parallelen Längsflächen eines Stützkörpers SKl, während letzteres über nicht näher bezeichnete Umlenwalzen ebenfalls geringen Durchmessers und Stützkörper SK2a, SK2b geführt ist. Das Band B3 bildet somit eine erste, innere Bandanordnung (sie kann gegebenenfalls auch aus mehreren, je in sich umlaufenden Einzelbändern bestehen), die von einer zweiten, äusseren Bandanordnung auf dem überwiegenden Teil ihres Umfanges umfasst wird, so dass sich ohne Trommel eine geschlossene Materialdurchlaufbahn ergibt. Die zweite Bandanordnung wird hierzu durch ein weiteres, in sich umlaufendes Band B5 vervollständigt, welches die Umlenkwalze U2 umgreift.The continuous machine according to FIG. 3 is characterized by a low overall height even for long continuous path lengths. For this purpose, 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. For this purpose, the second belt arrangement is completed by a further belt B5 which runs around itself and which surrounds the deflection roller U2.
Das Band B5 enthält eine zwischen einer Schliess- oder Arbeitsstellung I und einer Offenstellung II gemäss Pfeilen VB entsprechend nicht näher dargestellten, an sich üblichen Führungsbahnen mit geeigneten Antriebs- und Steuermitteln verstellbare Teilbandanordnung VBA, die in der Stellung II einen Zuführbereich ZB der Durchlaufbahn DB1.freigibt und'dabei gleichzeitig eine Zuführfläche ZF für in die Durchlaufbahn einzuleitende Materialstücke bildet. In der Arbeitsstellung ist demgegenüber die Durchlaufbahn zwischen den einander zugewandten Arbeitsflächen Fl, F2 und F3 der Bänder annähernd über ihre ganze Länge eingeschlossen, so dass sich ein gleichmässiger und faltenbildungsfreier Materialdurchlauf ergibt.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. In the working position, on the other hand, 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.
Für das Auslenken des Materials nach vorgegebener Durchlaufzeit ist wieder eine Abhebevorrichtung AHV ähnlich derjenigen nach Fig.l mit einer Sektor-Saugwalze SW und einer zugehörigen Umlauf-Steuereinrichtung UST sowie (hier nicht dargestelltem) Steuerventil. STV vorgesehen. Die Steuereinrichtung UST wird von einem schematisch angedeuteten Materialkanten-Tastorgan TO einer an sich üblichen Fühleinrichtung gesteuert, so dass die Umlaufzahl erfasst werden kann. An die Abhebevorrichtung AHV schliesst sich in der vorliegenden Beispielsausführung eine Auslauf- und Abnahmefläche AF an, die antiparallel zum vorangehenden Abschnitt der Durchlaufbahn DB1 gerichtet ist und die Abnahmebedienung erleichtert sowie zur geringen Bauhöhe der Maschine beiträgt. Der Saugsektor der Walze SW erstreckt sich dazu über etwa 1800 zwischen der Durchlaufbahn und der Auslauf- und Abnahmefläche AF.For the deflection of the material after a predetermined throughput time, 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. In the present exemplary embodiment, 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.
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CH3360/82 | 1982-05-14 | ||
CH336082 | 1982-05-14 |
Publications (2)
Publication Number | Publication Date |
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EP0095122A2 true EP0095122A2 (en) | 1983-11-30 |
EP0095122A3 EP0095122A3 (en) | 1984-09-19 |
Family
ID=4254290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83104823A Withdrawn EP0095122A3 (en) | 1982-05-14 | 1983-05-16 | Continuous process for heat and/or pressure treatment of soft, flexible flat materials, and apparatus for the application of the process |
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EP (1) | EP0095122A3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992010592A1 (en) * | 1990-12-10 | 1992-06-25 | Jiri Dokoupil | Facility for treating leather, pelts, furs and the like |
EP1024202A2 (en) * | 1999-01-27 | 2000-08-02 | Industrie Meccaniche Bergi-OFB S.p.A. | A machine for the continuous plating and embossing of hides and the like |
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US1428329A (en) * | 1920-07-24 | 1922-09-05 | Indianapolis Saddlery Company | Drying and feeding mechanism for pasted strips |
DE513873C (en) * | 1927-01-27 | 1930-12-05 | Turner Ag Maschf | Machine for pressing leather or the like. |
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 (en) * | 1967-10-12 | 1969-09-26 | ||
DE2010824A1 (en) * | 1969-04-28 | 1970-11-05 | Statni Vyzkumny Ustav Kozedelny, Gottwaldov (Tschechoslowakei) | Method and device for drying leather |
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 (en) * | 1975-08-30 | 1979-03-30 | Fiedler Otto Karl | |
EP0002739A1 (en) * | 1977-12-22 | 1979-07-11 | Louis Schweizer GmbH & Co. KG Lederfabrik | De-watering press |
-
1983
- 1983-05-16 EP EP83104823A patent/EP0095122A3/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US1428329A (en) * | 1920-07-24 | 1922-09-05 | Indianapolis Saddlery Company | Drying and feeding mechanism for pasted strips |
DE513873C (en) * | 1927-01-27 | 1930-12-05 | Turner Ag Maschf | Machine for pressing leather or the like. |
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 (en) * | 1967-10-12 | 1969-09-26 | ||
DE2010824A1 (en) * | 1969-04-28 | 1970-11-05 | Statni Vyzkumny Ustav Kozedelny, Gottwaldov (Tschechoslowakei) | Method and device for drying leather |
GB1441113A (en) * | 1972-11-03 | 1976-06-30 | Strojosvit Np | Continuously operating machine for pressing ironing or producing patterns on sheet material |
CH610009A5 (en) * | 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 (en) * | 1977-12-22 | 1979-07-11 | Louis Schweizer GmbH & Co. KG Lederfabrik | De-watering press |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992010592A1 (en) * | 1990-12-10 | 1992-06-25 | Jiri Dokoupil | Facility for treating leather, pelts, furs and the like |
EP1024202A2 (en) * | 1999-01-27 | 2000-08-02 | Industrie Meccaniche Bergi-OFB S.p.A. | A machine for the continuous plating and embossing of hides and the like |
EP1024202A3 (en) * | 1999-01-27 | 2001-03-07 | Industrie Meccaniche Bergi-OFB S.p.A. | A machine for the continuous plating and embossing of hides and the like |
Also Published As
Publication number | Publication date |
---|---|
EP0095122A3 (en) | 1984-09-19 |
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