DE102004008984B4 - Sealing device in a packaging machine - Google Patents

Sealing device in a packaging machine Download PDF

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Publication number
DE102004008984B4
DE102004008984B4 DE102004008984A DE102004008984A DE102004008984B4 DE 102004008984 B4 DE102004008984 B4 DE 102004008984B4 DE 102004008984 A DE102004008984 A DE 102004008984A DE 102004008984 A DE102004008984 A DE 102004008984A DE 102004008984 B4 DE102004008984 B4 DE 102004008984B4
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DE
Germany
Prior art keywords
sealing
connecting element
sealing device
bearing elements
gap
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 - Fee Related
Application number
DE102004008984A
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German (de)
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DE102004008984A1 (en
Inventor
Dieter Schins
Mike Mühlberg
Jürgen Ippers
Axel Friese
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE102004008984A priority Critical patent/DE102004008984B4/en
Priority to DE202004021760U priority patent/DE202004021760U1/en
Priority to IT000266A priority patent/ITMI20050266A1/en
Publication of DE102004008984A1 publication Critical patent/DE102004008984A1/en
Application granted granted Critical
Publication of DE102004008984B4 publication Critical patent/DE102004008984B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81261—Thermal properties, e.g. thermal conductivity, thermal expansion coefficient
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92611—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92651—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by using stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/16—Applying or generating heat or pressure or combinations thereof by rotary members
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81417—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled being V-shaped
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8223—Worm or spindle mechanisms
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92611—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools
    • B29C66/92613—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools the gap being kept constant over time

Abstract

Siegelvorrichtung (10) in einer Verpackungsmaschine, mit zwei in Lagerelementen (13, 14, 17, 18) auf Wellen (8, 9) angeordneten, beheizbaren Siegelwalzen (11, 12), zwischen denen ein Siegelspalt (S) für ein aus mehreren Schichten (1, 2) bestehendes, siegelfähiges Packstoffband ausgebildet ist, wobei die Lagerelemente (13, 14, 17, 18) mittels wenigstens eines Verbindungselementes (29, 30), das beabstandet zu den Wellen (8, 9) angeordnet ist, miteinander verbunden sind, und wobei der Siegelspalt (S) mittels wenigstens eines Schraubenelements (37) verstellbar ist, welches sich beabstandet zu dem wenigstens einen Verbindungselement (29, 30) befindet, dadurch gekennzeichnet, dass das wenigstens eine Verbindungselement (29, 30) als Biegebalken ausgebildet ist.Sealing device (10) in a packaging machine, with two heatable sealing rollers (11, 12) arranged in bearing elements (13, 14, 17, 18) on shafts (8, 9), between which a sealing gap (S) for one of several layers (1, 2) existing, sealable packaging material band is formed, wherein the bearing elements (13, 14, 17, 18) by means of at least one connecting element (29, 30), which is spaced from the shafts (8, 9) are interconnected , and wherein the sealing gap (S) by means of at least one screw member (37) is adjustable, which is spaced from the at least one connecting element (29, 30), characterized in that the at least one connecting element (29, 30) is designed as a bending beam ,

Description

Stand der TechnikState of the art

Die Erfindung betrifft eine Siegelvorrichtung in einer Verpackungsmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a sealing device in a packaging machine according to the preamble of claim 1.

Eine derartige Siegelvorrichtung ist aus der US 3,074,214 (1) bekannt. Bei der bekannten Vorrichtung sind die beiden Siegelwalzen auf Lagerelementen angeordnet, welche an einer Seite gelenkig miteinander verbunden sind. Zur Einstellung des Siegelspaltes dient einerseits eine Druckschraube, welche die Distanz zwischen den beiden Lagerelementen uberbruckt und sich gegen das eine Lagerelement abstutzt, und andererseits eine Zugfeder, welche die beiden Lagerelemente und somit die beiden Siegelwalzen gegeneinander und gegen die Druckschraube zieht. Da die Lagerelemente der Siegelwalzen einseitig gelenkig miteinander verbunden und mit der Zugfeder miteinander verspannt sind, bildet die Siegelvorrichtung keine starre Einheit aus, so dass es bei hohen Drehzahlen bzw. hoher Leistung zu Schwingungen an der Siegelvorrichtung kommen kann, welche sich negativ auf die Siegelqualitat an den Beutelpackungen auswirkt.Such a sealing device is from the US 3,074,214 ( 1 ) known. In the known device, the two sealing rollers are arranged on bearing elements which are hinged together on one side. To set the sealing gap is used on the one hand a pressure screw, which bridges the distance between the two bearing elements and braced against the one bearing element, and on the other hand, a tension spring, which pulls the two bearing elements and thus the two sealing rollers against each other and against the pressure screw. Since the bearing elements of the sealing rollers are hinged together on one side and clamped together with the tension spring, the sealing device does not form a rigid unit, so that it can come at high speeds or high power to vibrations on the sealing device, which adversely affect the seal quality affects the bag packages.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemaße Siegelvorrichtung in einer Verpackungsmaschine mit den kennzeichnenden Merkmalen des Anspruchs 1 hat den Vorteil, dass sie eine relativ starre Einheit bildet, welche auch bei hohen Leistungen nicht zu Schwingungen neigt und gleichzeitig gute Dampfungseigenschaften aufweist. Dies wird erfindungsgemaß dadurch erreicht, dass das wenigstens eine Verbindungselement als Biegebalken ausgebildet ist. Das wenigstens eine, die Lagerelemente verbindende Verbindungselement bildet somit ein Gelenk aus, welches zum Einstellen des Siegelspaltes nur durch Aufbringen einer zusatzlichen Biegekraft verstellt werden kann.The sealing device according to the invention in a packaging machine with the characterizing features of claim 1 has the advantage that it forms a relatively rigid unit, which does not tend to oscillate even at high power and at the same time has good Dampfungseigenschaften. This is inventively achieved in that the at least one connecting element is designed as a bending beam. The at least one, the bearing elements connecting connecting element thus forms a joint, which can be adjusted for adjusting the sealing gap only by applying an additional bending force.

Vorteilhafte Weiterbildungen der erfindungsgemaßen Siegelvorrichtung in einer Verpackungsmaschine sind in den Unteranspruchen angegeben.Advantageous developments of the sealing device according to the invention in a packaging machine are specified in the subclaims.

In einer bevorzugten Ausfuhrungsform der Erfindung ist das wenigstens eine Verbindungselement nur an seinen Endbereichen mit den Lagerelementen verbunden. Dadurch läßt sich die erforderliche Kraft zur Erhöhung des Siegelspaltes vermindern, da der Abstand zwischen den Einspannstellen des als Biegebalken wirkenden Verbindungselements maximiert ist.In a preferred embodiment of the invention, the at least one connecting element is connected to the bearing elements only at its end regions. As a result, the force required to increase the sealing gap can be reduced, since the distance between the clamping points of acting as a bending beam connecting element is maximized.

Vorteilhaft ist es weiterhin, wenn das wenigstens eine Verbindungselement einen rechteckigen Querschnitt aufweist, wobei dessen Kantenlangen so gewahlt sind, dass das Verbindungselement senkrecht zu den Lagerelementen ein höheres Widerstandsmoment aufweist. Dadurch wird eine weitere Versteifung der Siegelvorrichtung quer zu den Lagerelementen erzielt.It is furthermore advantageous if the at least one connecting element has a rectangular cross-section, wherein its edge lengths are selected such that the connecting element has a higher resistance moment perpendicular to the bearing elements. As a result, a further stiffening of the sealing device is achieved transversely to the bearing elements.

Durch die Verwendung eines Materials mit relativ geringem Warmeausdehnungskoeffizienten fur das wenigstens eine Verbindungselement laßt sich beispielsweise auch nach langerem Betrieb ein nahezu konstanter Siegelspalt erzielen, so dass Nachjustierungen minimiert werden.By using a material with a relatively low coefficient of thermal expansion for the at least one connecting element, it is possible, for example, to achieve a virtually constant sealing gap even after a long operation, so that readjustments are minimized.

Wenn das wenigstens eine Schraubenelement zur Einstellung des Siegelspaltes auf der dem wenigstens einen Verbindungselement gegenuberliegenden Seite der Wellen angeordnet ist laßt sich einerseits aufgrund des großen Hebelarmes zwischen dem Verbindungselement und dem Schraubenelement eine sehr feine Einstellung des Siegelspaltes erzielen, zum anderen sind die erforderlichen Drehmomente zum Verstellen der Schraubenelements reduziert.If the at least one screw element for adjusting the sealing gap is arranged on the at least one connecting element opposite side of the waves let on the one hand due to the large lever arm between the connecting element and the screw member achieve a very fine setting of the sealing gap, on the other hand, the required torques for adjusting reduced the screw element.

Zeichnungdrawing

Ein Ausfuhrungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend naher erlautert. Es zeigen:An embodiment of the invention is illustrated in the drawing and will be explained in more detail below. Show it:

1 eine perspektivische Ansicht einer erfindungsgemaßen Siegelvorrichtung und 1 a perspective view of a sealing device according to the invention and

2 eine teilweise geschnittene, vereinfachte Seitenansicht auf die Vorrichtung nach 1. 2 a partially cut, simplified side view of the device according to 1 ,

Beschreibung des AusfuhrungsbeispielsDescription of the exemplary embodiment

Die in den Figuren dargestellte Vorrichtung 10 dient zum Quersiegeln und Abtrennen von zwischen zwei Folienbahnen 1, 2 abgepackten Gegenstanden 3 in Einzelpackungen. Bei den Gegenstanden 3 kann es sich beispielsweise um Bonbons oder ahnliches handeln. Die Vorrichtung 10 ist Bestandteil einer Verpackungsmaschine, insbesondere einer sogenannten horizontal arbeitenden Schlauchbeutelmaschine.The device shown in the figures 10 serves for cross-sealing and separating between two film webs 1 . 2 pre-packaged items 3 in single packs. At the objects 3 For example, they can be candies or something similar. The device 10 is part of a packaging machine, in particular a so-called horizontally operating tubular bag machine.

Die Vorrichtung 10 weist eine obere Siegelwalze 11 und eine untere Siegelwalze 12 auf. Die obere Siegelwalze 11 ist zwischen zwei oberen Lagerplatten 13, 14 in einer oberen Welle 8 drehbar angeordnet, und wird mittels eines nicht dargestellten Antriebs kontinuierlich im Gegenuhrzeigersinn gedreht. Eine obere Quertraverse 15 dient der Verbindung der beiden oberen Lagerplatten 13, 14 sowie der zusatzlichen Versteifung. Die untere Siegelwalze 12 ist zwischen zwei unteren Lagerplatten 17, 18 in einer unteren Welle 9 drehbar gelagert und z. B. mittels desselben Antriebs wie die obere Siegelwalze 11 im Uhrzeigersinn kontinuierlich drehbar. Auch die beiden unteren Lagerplatten 17, 18 konnen mittels einer (nicht dargestellten) Quertraverse oder ahnlichem zusatzlich miteinander verbunden bzw. versteift sein.The device 10 has an upper sealing roller 11 and a lower sealing roller 12 on. The upper sealing roller 11 is between two upper bearing plates 13 . 14 in an upper shaft 8th rotatably mounted, and is rotated by means of a drive, not shown, continuously counterclockwise. An upper crossbar 15 serves to connect the two upper bearing plates 13 . 14 as well as the additional stiffening. The lower sealing roller 12 is between two lower bearing plates 17 . 18 in a lower shaft 9 rotatably mounted and z. B. by means of the same drive as the upper sealing roller 11 continuously rotatable clockwise. Also the two lower bearing plates 17 . 18 may be additionally connected or stiffened by means of a cross-beam (not shown) or the like.

Die beiden Siegelwalzen 11, 12 weisen jeweils vier, um 90° zueinander versetzt angeordnete Paare von beheizbaren Siegelflachen 20, 21 bzw. 23, 24 auf, zwischen denen jeweils ein Trennmesser 26, 27 angeordnet ist. Die Trennmesser 26, 27 dienen zum Abtrennen der Einzelpackungen von den Folienbahnen 1, 2. Selbstverstandlich ist es auch denkbar, Siegelwalzen ohne Trennmesser (mit dann jeweils durchgehenden Siegelflächen) vorzusehen. In diesem Fall werden auf einer separaten Trenneinrichtung Packungen abgetrennt.The two sealing rollers 11 . 12 each have four, offset by 90 ° to each other pairs of heated sealing surfaces 20 . 21 respectively. 23 . 24 on, between each of which a separating knife 26 . 27 is arranged. The cutting knife 26 . 27 serve to separate the individual packages of the film webs 1 . 2 , Of course, it is also conceivable to provide sealing rolls without separating knife (with then continuous sealing surfaces). In this case, packs are separated on a separate separator.

Die Siegelwalzen 11, 12 sind so zueinander ausgerichtet, dass bei deren Umlauf die jeweiligen Siegelflachen 20, 21 und 23, 24 miteinander in Deckung kommen, so dass dann die Folienbahnen 1, 2 unter Einwirkung von Warme und Druck miteinander verschweißt werden. Je nach Material und Dicke der Folienbahnen 1, 2 ist fur den Schweißvorgang die Einstellung eines bestimmten Siegelspaltes S erforderlich, welcher als Minimalabstand zwischen den Siegelflachen 20, 21 der oberen Siegelwalze 11 und 23, 24 der unteren Siegelwalze 12 definiert ist. Um den Siegelspalt S anzupassen, ist die Vorrichtung 10 auf besondere Art und Weise ausgebildet. So sind die eine obere Lagerplatte 13 und die eine untere Lagerplatte 17 bzw. die andere obere Lagerplatte 14 und die andere untere Lagerplatte 18 mittels jeweils eines stabformigen, im Querschnitt rechteckigen Verbindungselements 29, 30 miteinander verbunden, wobei die Verbindungselmente 29, 30 vorzugsweise senkrecht zur Zeichenebene der 2 eine großere Breite aufweisen als in der Ebene der Lagerplatten 13, 14, 17, 18.The sealing rolls 11 . 12 are aligned with each other so that their circulation the respective sealing surfaces 20 . 21 and 23 . 24 cover each other, so that then the film webs 1 . 2 be welded together under the action of heat and pressure. Depending on the material and thickness of the film webs 1 . 2 For the welding process, the setting of a certain sealing gap S is required, which is the minimum distance between the sealing surfaces 20 . 21 the upper sealing roller 11 and 23 . 24 the lower sealing roller 12 is defined. To adjust the sealing gap S, the device is 10 trained in a special way. So are the one upper bearing plate 13 and the one lower bearing plate 17 or the other upper bearing plate 14 and the other lower bearing plate 18 by means of a respective rod-shaped, rectangular in cross-section connecting element 29 . 30 connected to each other, wherein the Verbindungselmente 29 . 30 preferably perpendicular to the plane of the 2 have a greater width than in the plane of the bearing plates 13 . 14 . 17 . 18 ,

Die Verbindungselemente 29, 30 bestehen aus einem Material mit relativ geringem Warmeausdehnungskoeffizienten, zum Beispiel aus Ni36. Dadurch lasst sich auch bei sich ändernden Temperaturen, zum Beispiel aufgrund der Erwärmung der Bauteile nach langerem Betrieb, ein weitgehend konstanter Siegelspalt S bewirken. Die Verbindungselemente 29, 30 sind lediglich an ihren jeweiligen Endbereichen mittels Schrauben 31, 32 mit den oberen Lagerplatten 13, 14 bzw. den unteren Lagerplatten 17, 18 verbunden. Wesentlich ist, dass die Verbindungselemente 29, 30 außerhalb ihres Befestigungsbereichs an den oberen Lagerplatten 13, 14 bzw. unteren Lagerplatten 17, 18 als Biegebalken wirken. Durch diese Ausbildung der Verbindungselemente 29, 30 lasst sich der erforderliche Siegelspalt S, wie am besten anhand der 2 ersichtlich ist, einstellen. Dazu weisen die oberen Lagerplatten 13, 14 jeweils einen oberen Fortsatz 33 und die unteren Lagerplatten 17, 18 jeweils einen unteren Fortsatz 34 auf, die sich auf der gegenuberliegenden Seite der Verbindungselemente 29, 30 befinden. In dem oberen Fortsatz 33 ist jeweils eine durchgehende Gewindebohrung 36 ausgebildet, in die eine Druckschraube 37 eingedreht ist, deren unteres Ende sich gegen den unteren Fortsatz 34 abstutzt. An der Auflagestelle der Druckschraube 37 an dem unteren Fortsatz 34 kann beispielsweise eine (nicht dargestellt) harte und verschleißfeste Auflage vorgesehen sein. Eine Kontermutter 38 dient der Fixierung der Druckschraube 37 in der Gewindebohrung 36.The connecting elements 29 . 30 consist of a material with a relatively low coefficient of thermal expansion, for example of Ni36. As a result, even with changing temperatures, for example due to the heating of the components after a long operation, a largely constant sealing gap S can be achieved. The connecting elements 29 . 30 are only at their respective end areas by means of screws 31 . 32 with the upper bearing plates 13 . 14 or the lower bearing plates 17 . 18 connected. It is essential that the fasteners 29 . 30 outside its mounting area on the upper bearing plates 13 . 14 or lower bearing plates 17 . 18 act as a bending beam. Due to this design of the connecting elements 29 . 30 let the required sealing gap S, as best shown by the 2 can be seen, adjust. For this purpose, the upper bearing plates 13 . 14 one upper extension each 33 and the lower bearing plates 17 . 18 each a lower extension 34 on, referring to the opposite side of the fasteners 29 . 30 are located. In the upper extension 33 is in each case a continuous threaded hole 36 formed into which a pressure screw 37 is screwed, the lower end against the lower extension 34 braced. At the contact point of the pressure screw 37 at the lower extension 34 For example, a (not shown) hard and wear-resistant pad can be provided. A locknut 38 serves to fix the pressure screw 37 in the threaded hole 36 ,

Wie am besten anhand der 2 erkennbar ist, werden beim Einschrauben der Druckschrauben 37 die oberen Lagerplatten 13, 14 um die Verbindungselemente 29, 30 nach oben weggeschwenkt, wobei die Verbindungselemente 29, 30 als Biegebalken wirken und um ihre neutrale Faser 39 gebogen werden. Der besseren Erkennbarkeit der Durchbiegung der Verbindungselemente 29, 30 wegen ist die Durchbiegung der Verbindungselemente 29, 30 in der 2 stark ubertrieben dargestellt. Gleichzeitig erkennt man, dass mit zunehmender Einschraubtiefe der Druckschrauben 37 sich der Siegelspalt S vergroßert. Von Vorteil ist es, wenn bereits bei dem kleinstmoglichen sinnvollen Siegelspalt S die Verbindungselemente 29, 30 verbogen bzw. elastisch vorgespannt sind, so dass die oberen Lagerplatten 13, 14 gegen die unteren Lagerplatten 17, 18 verspannt sind. Dadurch ergibt sich eine besonders steife Einheit.How best by the 2 can be seen when screwing the pressure screws 37 the upper bearing plates 13 . 14 around the fasteners 29 . 30 swung upwards, the connecting elements 29 . 30 act as a bending beam and around their neutral fiber 39 be bent. The better recognizability of the deflection of the connecting elements 29 . 30 because of the deflection of the fasteners 29 . 30 in the 2 shown greatly exaggerated. At the same time one recognizes that with increasing screwing depth of the pressure screws 37 the sealing gap S increases. It is advantageous, if already at the smallest possible meaningful sealing gap S, the connecting elements 29 . 30 bent or elastically biased so that the upper bearing plates 13 . 14 against the lower bearing plates 17 . 18 are tense. This results in a particularly rigid unit.

Zur weiteren Versteifung der Vorrichtung 10 dienen Fuhrungseinrichtungen 40, welche jeweils zwischen einer oberen Lagerplatte 13, 14 einer unteren Lagerplatte 17, 18 nahe der Fortsatze 33, 34 angeordnet sind. Dazu weist jede Fuhrungseinrichtung 40 eine Fuhrungsplatte 42 auf, welche mittels einer Schraube 43 in der unteren Lagerplatte 17, 18 drehbar gelagert ist. Zumindest auf der den oberen Lagerplatten 13, 14 zugewandte Seite weist jede Fuhrungsplatte 42 einen Fuhrungssteg 44 auf, welcher in eine längliche Nut 45 einer Führungsnuss 46 eingreift und in dieser spielfrei gefuhrt ist. Die Fuhrungsnuss 46 ist in einer entsprechenden Ausnehmung 47 der oberen Lagerplatte 13, 14 drehbar angeordnet. Beim Verstellen des Siegelspalts S, bei dem sich der Abstand zwischen den oberen Lagerplatten 13, 14 und den unteren Lagerplatten 17, 18 verändert, wird der Fuhrungssteg 44 innerhalb der Nut 45 gefuhrt, wobei eine Relativbewegung zwischen der Fuhrungsplatte 42 und der Fuhrungsnuss 46 ermoglicht wird. Die Fuhrungseinrichtung 40 bewirkt, dass Bewegungen der oberen Lagerplatte 13, 14 bzw. der unteren Lagerplatte 17, 18 senkrecht zur Zeichenebene der 2 sowie senkrecht zur Nut 45 aufgrund beispielsweise von auf die Vorrichtung 10 einwirkenden Torsionsmomenten vermieden werden, wodurch sich eine weitere Versteifung der Vorrichtung 10 ergibt.For further stiffening of the device 10 serve guidance facilities 40 , which in each case between an upper bearing plate 13 . 14 a lower bearing plate 17 . 18 near the continuation 33 . 34 are arranged. For this purpose, each leadership device 40 a guide plate 42 on which by means of a screw 43 in the lower bearing plate 17 . 18 is rotatably mounted. At least on the upper bearing plates 13 . 14 facing side has each Fuhrungsplatte 42 a Fuhrungssteg 44 which is in an elongated groove 45 a guide nut 46 engages and guided in this game. The guide nut 46 is in a corresponding recess 47 the upper bearing plate 13 . 14 rotatably arranged. When adjusting the sealing gap S, at which the distance between the upper bearing plates 13 . 14 and the lower bearing plates 17 . 18 changed, becomes the Fuhrungssteg 44 inside the groove 45 guided, with a relative movement between the Fuhrungsplatte 42 and the guide nut 46 is made possible. The guiding device 40 causes movements of the upper bearing plate 13 . 14 or the lower bearing plate 17 . 18 perpendicular to the plane of the 2 as well as perpendicular to the groove 45 due, for example, to the device 10 acting torsional moments are avoided, resulting in a further stiffening of the device 10 results.

Zusatzlich ermoglicht die Vorrichtung 10 eine Feineinstellung des Siegeldruckes. Dazu dient jeweils eine Siegeldruckeinstelleinrichtung 50, welche im Bereich der Fortsatze 33, 34 angeordnet ist. Die Siegeldruckeinstelleinrichtung 50 umfasst jeweils einen gabelformigen Trager 51, dessen oberes Ende mittels eines (gesicherten) Stiftes 52 in dem oberen Fortsatz 33 drehbar gelagert ist. Der Trager 51 ubergreift den unteren Fortsatz 34 und mundet einstuckig in einer Gewindestange 54, welche ihrerseits am (nicht dargestellten) Gestell der Vorrichtung 10 verankert ist. Weiterhin ist eine Randelmutter 55 vorgesehen, welche verstellbar auf der Gewindestange 54 angeordnet ist. Zwischen der Rändelmutter 55 und einer ringscheibenförmigen Gegenplatte 53, welche von der Gewindestange 54 durchdrungen ist, und die sich gegen den unteren Fortsatz 34 abstutzt, ist eine Druckfeder 56 angeordnet. Beim Verdrehen der Randelmuttern 55 in Richtung der unteren Fortsätze 34 wird durch die Verkurzung des Abstandes zur Gegenplatte 53 eine hohere Druckspannung in den Druckfedern 56 erzeugt, was eine zusatzlichen Zugkraft auf die oberen Lagerplatten 13, 14 in Richtung der unteren Lagerplatten 17, 18 bewirkt, welche die Siegelkraft zwischen den Siegelwalzen 11, 12 erhoht.In addition, the device allows 10 a fine adjustment of the sealing pressure. For this purpose, a sealing pressure setting device is used in each case 50 , which in the area of the continuation 33 . 34 is arranged. The sealing pressure adjustment device 50 each includes a forked carrier 51 , whose upper end by means of a (secured) pin 52 in the upper appendage 33 is rotatably mounted. The carrier 51 reaches over the lower appendage 34 and tastes one-piece in a threaded rod 54 , which in turn on the (not shown) frame of the device 10 is anchored. Furthermore, a Randelmutter 55 provided, which adjustable on the threaded rod 54 is arranged. Between the knurled nut 55 and an annular disk-shaped counter-plate 53 which of the threaded rod 54 is penetrated, and which is against the lower appendage 34 braces, is a compression spring 56 arranged. When twisting the Randelmuttern 55 in the direction of the lower appendages 34 is due to the shortening of the distance to the counter plate 53 a higher compressive stress in the compression springs 56 which creates an additional pulling force on the upper bearing plates 13 . 14 towards the lower bearing plates 17 . 18 causes the sealing force between the sealing rolls 11 . 12 elevated.

Die oben beschriebene Vorrichtung 10 kann in vielfaltiger Weise abgewandelt werden, ohne vom Erfindungsgedanken abzuweichen. So ist beispielsweise eine zentral angeordnete Einrichtung zur Verstellung des Siegeldruckes denkbar. Auch kann anstatt zweier stabformiger Verbindungselemente 29, 30 beispielsweise ein einzelnes Verbindungselement, welches als Biegebalken wirkt, verwendet werden.The device described above 10 can be modified in many ways, without departing from the spirit. For example, a centrally arranged device for adjusting the sealing pressure is conceivable. Also, instead of two stabformiger fasteners 29 . 30 For example, a single connector, which acts as a bending beam, are used.

Claims (8)

Siegelvorrichtung (10) in einer Verpackungsmaschine, mit zwei in Lagerelementen (13, 14, 17, 18) auf Wellen (8, 9) angeordneten, beheizbaren Siegelwalzen (11, 12), zwischen denen ein Siegelspalt (S) für ein aus mehreren Schichten (1, 2) bestehendes, siegelfähiges Packstoffband ausgebildet ist, wobei die Lagerelemente (13, 14, 17, 18) mittels wenigstens eines Verbindungselementes (29, 30), das beabstandet zu den Wellen (8, 9) angeordnet ist, miteinander verbunden sind, und wobei der Siegelspalt (S) mittels wenigstens eines Schraubenelements (37) verstellbar ist, welches sich beabstandet zu dem wenigstens einen Verbindungselement (29, 30) befindet, dadurch gekennzeichnet, dass das wenigstens eine Verbindungselement (29, 30) als Biegebalken ausgebildet ist.Sealing device ( 10 ) in a packaging machine, with two in bearing elements ( 13 . 14 . 17 . 18 ) on waves ( 8th . 9 ), heatable sealing rolls ( 11 . 12 ), between which a sealing gap (S) for one of several layers ( 1 . 2 ) existing, sealable packaging material strip is formed, wherein the bearing elements ( 13 . 14 . 17 . 18 ) by means of at least one connecting element ( 29 . 30 ) spaced apart from the waves ( 8th . 9 ), are interconnected, and wherein the sealing gap (S) by means of at least one screw element ( 37 ) which is at a distance from the at least one connecting element ( 29 . 30 ), characterized in that the at least one connecting element ( 29 . 30 ) is designed as a bending beam. Siegelvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das wenigstens eine Verbindungselement (29, 30) an seinen Endbereichen mit den Lagerelementen (13, 14, 17, 18) starr verbunden und in den nicht mit den Lagerelementen (13, 14, 17, 18) verbundenen Bereichen auslenkbar ist.Sealing device according to claim 1, characterized in that the at least one connecting element ( 29 . 30 ) at its end regions with the bearing elements ( 13 . 14 . 17 . 18 ) rigidly connected and in which not with the bearing elements ( 13 . 14 . 17 . 18 ) connected areas is deflected. Siegelvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das wenigstens eine Verbindungselement (29, 30) stabförmig ausgebildet ist und einen rechteckigen Querschnitt aufweist, wobei dessen Widerstandsmoment senkrecht zu den Lagerelementen (13, 14, 17, 18) höher ist als in Richtung der Wellen (8, 9).Sealing device according to claim 2, characterized in that the at least one connecting element ( 29 . 30 ) is rod-shaped and has a rectangular cross-section, wherein the moment of resistance perpendicular to the bearing elements ( 13 . 14 . 17 . 18 ) is higher than in the direction of the waves ( 8th . 9 ). Siegelvorrichtung nach einem der Anspruche 1 bis 3, dadurch gekennzeichnet, dass das wenigstens eine Verbindungselement (29, 30) aus einem Material mit geringem Wärmeausdehnungskoeffizienten, zum Beispiel aus Ni36 besteht.Sealing device according to one of claims 1 to 3, characterized in that the at least one connecting element ( 29 . 30 ) consists of a material with a low coefficient of thermal expansion, for example of Ni36. Siegelvorrichtung nach einem der Anspruche 1 bis 4, dadurch gekennzeichnet, dass das wenigstens eine Schraubenelement (37) auf der dem wenigstens einen Verbindungselement (29, 30) gegenüberliegenden Seite der Wellen (8, 9) angeordnet ist.Sealing device according to one of claims 1 to 4, characterized in that the at least one screw element ( 37 ) on the at least one connecting element ( 29 . 30 ) opposite side of the shafts ( 8th . 9 ) is arranged. Siegelvorrichtung nach einem der Anspruche 1 bis 5, dadurch gekennzeichnet, dass zur Einstellung des Siegeldruckes wenigstens eine Druckfeder (56) vorgesehen ist, deren Vorspannung mittels eines Einstellelements (55) veränderbar ist.Sealing device according to one of claims 1 to 5, characterized in that for setting the sealing pressure at least one compression spring ( 56 ) is provided, whose bias by means of an adjustment ( 55 ) is changeable. Siegelvorrichtung nach einem der Anspruche 1 bis 6, dadurch gekennzeichnet, dass die Lagerelemente (13, 14, 17, 18) auf der dem wenigstens einen Verbindungselement (29, 30) abgewandten Seite mittels wenigstens einer zusätzlichen Führungeinrichtung (40) miteinander gekoppelt sind.Sealing device according to one of claims 1 to 6, characterized in that the bearing elements ( 13 . 14 . 17 . 18 ) on the at least one connecting element ( 29 . 30 ) facing away by means of at least one additional guide device ( 40 ) are coupled together. Siegelvorrichtung nach einem der Anspruche 1 bis 7, dadurch gekennzeichnet, dass das wenigstens eine Verbindungselement (29, 30) bereits bei dem kleinsten Siegelspalt (S) vorgespannt ist.Sealing device according to one of claims 1 to 7, characterized in that the at least one connecting element ( 29 . 30 ) is already biased at the smallest sealing gap (S).
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CN107187673A (en) * 2017-07-07 2017-09-22 统企业(中国)投资有限公司昆山研究开发中心 Semi-fluid food product packing machine with tearable mouth notching device
CN112123974A (en) * 2020-08-04 2020-12-25 淮北禾获人科技有限公司 Information recording board for software development
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