NL2011140C2 - Sealer device for the sealing of foils and a support frame of such sealer device. - Google Patents

Sealer device for the sealing of foils and a support frame of such sealer device. Download PDF

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Publication number
NL2011140C2
NL2011140C2 NL2011140A NL2011140A NL2011140C2 NL 2011140 C2 NL2011140 C2 NL 2011140C2 NL 2011140 A NL2011140 A NL 2011140A NL 2011140 A NL2011140 A NL 2011140A NL 2011140 C2 NL2011140 C2 NL 2011140C2
Authority
NL
Netherlands
Prior art keywords
support
support frame
base plate
supporting
sealing
Prior art date
Application number
NL2011140A
Other languages
Dutch (nl)
Inventor
Sjoerd Noud Anne Lintermans
Jan Asselbergs
Original Assignee
Novuqare B V
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 Novuqare B V filed Critical Novuqare B V
Priority to NL2011140A priority Critical patent/NL2011140C2/en
Application granted granted Critical
Publication of NL2011140C2 publication Critical patent/NL2011140C2/en

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Classifications

    • 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
    • B65B51/18—Applying or generating heat or pressure or combinations thereof by endless bands or chains
    • 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
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
    • B29C65/787—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains
    • B29C65/7873—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains using cooperating conveyor belts or cooperating conveyor chains
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888—Means for handling of moving sheets or webs
    • B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
    • 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
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • 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
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/04—Machines constructed with readily-detachable units or assemblies, e.g. to facilitate maintenance
    • 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
    • B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1412—Infrared [IR] radiation
    • 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
    • B29C65/02—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
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • 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
    • B29C66/922—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 measuring the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9221—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 measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force or the mechanical power
    • 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
    • B29C66/9241—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 pressure, the force or the mechanical power

Description

Title
Sealer device for the sealing of foils and a support frame of such sealer device.
Technical Field
The present invention generally relates to the sealing of foils, and in particular to a sealer device wherein oppositely positioned foil parts, such as foil parts at an open end of a bag or medical pouch containing medical equipment, are transported along a transport path past a sealing station and pressure device, for closing the bag or pouch.
Background
Sealing is a technology by which oppositely positioned foil surfaces are locally bonded or welded together, to form a fluid tight bond or weld. A heat sealer device is a machine used to seal products, packaging and other materials by locally applying heat. The foils used can be uniform thermoplastic monolayers or laminated materials having several layers, at least one being thermoplastic. Heat sealing can join two similar materials together or can join dissimilar materials, at least one of which is a thermoplastic layer. Hot melt adhesive may be applied in strips or beads at the point of joining. It can also be applied to one of the foil surfaces during an earlier manufacturing step and reactivated for bonding.
Continuous or rotary heat sealers, also known as band type heat sealers, use oppositely arranged endless moving belts, the tight sides of which forming a gap providing a transport path for transporting the foils past a heat sealing station. The sealing station is arranged for locally applying heat to the foils using any of electrically controlled resistance heating elements, induction heating elements, infrared heating elements, ultrasonic or RF heating elements, and the like.
Seal quality of heat seals is primarily a result of the transport speed or transport time of the foils past the heating elements, the heating temperature and the pressure applied at the foil surfaces. Several standard test methods are available to measure the strength and tightness of heat seals. In addition, package testing is used to determine the ability of completed packages to withstand specified pressure or vacuum. Several methods are available to determine the ability of a sealed package to retain its integrity, barrier characteristics, and sterility in the case of medical pouches holding medical equipment, for example. The efficacy of heat seals is often detailed in governing specifications, contracts, and regulations.
German utility patent DE 201 01 729 is an example of a continuous or rotary heat sealer device comprising a sealing station, a pressure device for exerting a mechanical pressure at oppositely positioned foil parts, a rotary transport arrangement for moving the foil parts along a transport path past the sealing station and the pressure device, and a driving arrangement for driving the transport arrangement.
In the prior art sealer devices, the several parts comprising the sealer device are each separately assembled on a support frame. This is not only a very time consuming manner of producing a sealer device, but requires also skilled assembly personnel, as the several sealer parts need to be precisely mounted and mutually adjusted to correctly feed the foils along the transport path past the sealing station and pressure device, to provide a desired seal quality. For adjusting purposes, prior art sealer devices comprise a plurality of adjusting mechanisms which, eventually, make the sealer devices prone to mechanical failure, for example when foils stuck in the sealer device, while repair of such prior art sealer device is very cumbersome and time consuming. Besides this, by mounting the several parts at the support frame using screws and bolts and in view of the several adjusting parts, the prior art sealing devices require a relatively heavy dimensioned support frame, are voluminous and due to their heavy weight not very easy to handle or suitable for portable use.
Summary
It is an object of the invention to provide a cost effective sealer device providing high quality seals while at the same time the need for adjusting mechanisms is reduced and the assembly of the several sealer parts comprising the sealer device is greatly simplified.
This object is solved, in the present invention, by a metal support frame, comprising an elongated base plate having a front surface comprising support elements integrally formed with the base plate and supporting the sealing station, pressure device and rotary transport arrangement such that the transport path extends in longitudinal direction of the base plate, and a back surface comprising reinforcing elements integrally formed with the base plate and distributed over the back surface providing stiffness to the base plate to prevent bending and twisting of the support frame in a direction transverse to the transport path.
The invention is based on the insight that by forming the support elements for supporting the sealing station, pressure device and transport arrangement integral with the support frame, not only the assembly of the sealer device is greatly simplified, but also the need for adjusting mechanisms can be greatly reduced as the support elements are mutually exactly adjusted at the manufacturing of the support frame and are not prone to tolerances caused by manually positioning and mounting of the several parts at the support frame.
The reinforcing elements provide a significant weight reduction of the support frame, in that a plate type base suffices for supporting the several parts of the sealer device, while bending of the base plate is effectively prevented by the reinforcing elements. The reinforcing elements are, in particular, distributed over the back surface of the base plate to provide sufficient stiffness to the support frame to prevent bending and twisting of the elongated base plate transverse to the longitudinal axis thereof, i.e. the direction of the transport path for transporting the foils past the sealing station and pressure device. Bending and twisting of the base plate leads to misalignments in the transport path, thereby increasing the risk of skew seals and foils that become stuck in the sealer device.
In an embodiment of the sealer device according to the invention, the reinforcing elements are interconnected plate-shaped ribs extending transversely to the back surface of the base plate of the support frame. Using plate shaped ribs does not significantly add to the weight of the support frame, while by interconnecting same a required stiffness is achieved. A further advantage of using plate-shaped ribs as reinforcing elements is provided in a further embodiment of the support frame according to invention, in which the plate-shaped ribs are distributed over the back surface of the base plate to form mounting compartments, accommodating the driving arrangement and control electronics of the sealer device, for example.
The stiffness against bending and twisting of the support frame is further enhanced in an embodiment of the invention, wherein the base plate of the support frame comprises a circumferential edge extending transverse to the front and back surface of the base plate.
In an embodiment of the sealer device according to the invention, the driving arrangement comprises first and second endless driving belts having oppositely arranged tight sides forming the transport path therebetween, wherein the support elements of the support frame comprise raised pulley wheel support piles extending transversely to the front surface of the base plate of the support frame at each short side thereof supporting pulley drive wheels driving the driving belts.
In a further embodiment of the invention, the support elements of the support frame further comprise raised mounting support piles extending transversely to the front surface of the base plate of the support frame at each short side thereof, supporting first and second guide plates guiding the first and second driving belts.
It will be appreciated that the support piles and mounting piles provide for an exact aligned mutual positioning of the several pulley wheels and guide plates such to prevent misalignments in the transport path of the sealer device due to assembling tolerances. The predetermined mutual positioning of the pulley wheels and guide plates provides automatically for a correct tensioning of the driving belts for transporting the foils to be sealed.
In another embodiment of the sealer device according to the invention comprising plate-shaped ribs distributed over the back surface of the base plate to form mounting compartments, the driving arrangement comprises an electric motor and transmission gearing arranged for driving pulley wheels of the first and second driving belt, wherein the electric motor and transmission gearing are arranged in a compartment formed by the plate-shaped ribs at the back surface of the base plate of the support frame opposite the pulley wheel support piles at a short side of the support frame.
As the pressure exerted at the heated foils is an important parameter for producing high quality seals, in an embodiment of the sealer device according to the invention the pressure device comprises first and second pressure wheels, oppositely positioned for transporting the foil parts between the first and second pressure wheels, wherein the support elements of the support frame comprise a raised pressure wheel support pile extending transversely to the front surface of the base plate of the support frame supporting the first pressure wheel and a pressure wheel support clip extending transversely to the front surface of the base plate of the support frame removably supporting a support pile of the second pressure wheel.
For accurately positioning and assembling of the sealing station, in an embodiment of the sealer device according to the invention, wherein the sealing station comprises first and second oppositely spaced heating elements comprising a gap therebetween for transporting the foils, the support elements of the support frame comprise spaced sealing station support piles extending transversely to the front surface of the base plate of the support frame at a long side thereof supporting the first heating element, and spaced sealing station support clips extending transversely to the front surface of the base plate of the support frame at another long side thereof removably supporting further support piles of the second heating element.
The combination of sealing station support piles and support clips provides for an easy and quick assembly of a two part sealing station such that the gap between the heating elements is parallel to and in line with the transport path formed by the transport arrangement.
Although the support piles can be precisely shaped and machined, in another embodiment of the invention, the pulley wheel and pressure wheel support piles have a hollow cylindrical shape with through end openings receiving drive axels for driving the pulley drive wheels and pressure wheel.
In a preferred embodiment of the sealer device according to the invention the support frame is of a light-weight metal. The support frame as a whole may be moulded in one piece.
In further embodiments of the sealer device according to the invention part of the base plate of the support frame is recessed from the circumferential edge, accommodating a printer device in this recessed part for printing at the foil parts transported along the transport path and/or wherein part of the raised circumferential edge of the support frame is recessed supporting a display device.
The invention further relates to a support frame of a sealer device as disclosed above. Those skilled in the art will appreciate that the support frame according to the invention is not limited to the support elements disclosed and described, and may comprise further support elements integral with the base plate.
The above-mentioned and other features and advantages of the invention are illustrated in the following description with reference to the enclosed drawings which refer to an example of a continuous or rotary or band type sealer device, which are provided by way of illustration only and which are not limitative to the present invention.
Brief description of the Drawings
Fig. 1 shows, in a schematic and illustrative manner, an example of a support frame of a continuous or rotary or band type sealer device in accordance with the invention, viewed at the front surface of the support frame.
Fig. 2 shows, in a schematic and illustrative manner, the support frame of Fig. 1, viewed at the back surface thereof.
Fig. 3 shows, in a schematic and illustrative manner, an exploded view representation of an example of a continuous or rotary or band type sealer device in accordance with the invention, comprising the support frame shown in Figs. I and 2.
Detailed description
In the figures, like components and parts a referred to by like reference numerals.
Figure 1 shows, in a schematic and illustrative embodiment, a metal support frame 10 of a sealer device according to the invention, viewed at its front surface. Figure 2 is a view of the support frame 10 from its back surface.
The support frame 10 comprises an elongated base plate 13, having a front 11 and back surface 12, a first 14 and a second short side 15 and, a first 16 and a second long side 17. The base plate 13 comprises a circumferential edge 18 extending over a distance transverse to the front 11 and back surface 12 of the base plate 13.
From the front surface 11, a plurality of support elements 20 - 33 protrude transverse to the base plate 13. These support elements 20 - 33 are integrally formed with the base plate 13 at the manufacturing of the support frame 10 and are arranged for assembling a continuous or rotary or band type sealer device.
Reference numerals 20, 21 refer to raised support piles or pillars arranged at the second short side 15 and extending transversely to the front surface II of the base plate 13. Reference numerals 22, 23 refer to raised support piles or pillars arranged at the second short side 16 of the base plate 13. The piles 20 and 22 are arranged for supporting pulley wheels or rollers of a first endless driving or transport belt, and the piles 21 and 23 are arranged for supporting pulley wheels or rollers of a second endless driving or transport belt. These belts, when assembled, are oppositely arranged seen in the plane of the front surface 11 of the support frame 10 forming a transport path for transporting foils in longitudinal direction of the base plate 13.
Reference numerals 24 - 27 designate raised mounting support piles or pillars 24 - 27 extending transversely to the front surface 11 of the base plate 13 for supporting first and second guide plates for guiding the first and second driving belts, respectively.
Support element 28 refers to a raised pressure wheel support pile or pillar 28 extending transversely to the front surface 11 of the base plate 13 of the support frame 10 for supporting a first pressure wheel or roller of a pressure device comprised of a first and second pressure wheel or roller for exerting mechanical pressure at the foils to be sealed. The second pressure wheel or roller is supported by a brace type pressure wheel support clip 29 protruding over a distance from the front surface 11 of the base plate 13, for removably supporting a support pile of the second pressure wheel.
In the embodiment shown, the pulley wheel support piles 20 - 23 and the pressure wheel support pile 28 have a hollow cylindrical, conical shape with through end openings receiving drive axels for driving the pulley drive wheels and pressure wheel. Those skilled in the art will appreciate that the support piles may have alternative designs, for example having a closed end surface for mounting the respective wheels or rollers.
To improve the sturdiness of the design, i.e. to withstand tension and bending forces acting on the several support piles 20 - 28, adjacently arranged support piles are interconnected by connecting ribs 34.
To support a sealing station, spaced sealing station support piles 30, 31 extending transversely to the front surface 11 of the base plate 13 at the first long side 16 thereof. In the embodiment shown, the sealing station support piles 30, 31 support a first electric heating element of the sealing station. For supporting a second electric heating element, oppositely spaced to the first heating element, brace type spaced sealing station support clips 32, 33 protrude from the base plate 13, extending transversely to the front surface 13 at the second long side 17 of the base plate 13, for removably supporting support piles of the second heating element.
In the embodiment shown, near the second short side 15, the base plate 13 comprises at its circumference from the first long side 16 a cut part or recess 35, for receiving a printer device for printing information at the foil parts that are transported by the transport or driving belts. For mounting the printer to the support frame 10 a mounting hole 36 is provided. Those skilled in the art will appreciate that this mounting hole may also take the form of a brace type clip, for example, such as any of the clips 29, 32, 33.
At the second long side 17 the circumference of the support frame is lowered providing a recess 37 for receiving and supporting a display device.
Figure 2 shows, in a schematic and illustrative manner, the metal support frame 10 from its back surface 12. At the back surface 12 reinforcing elements 38 are integrally formed with the base plate 13 and distributed over the back surface 12 to provide stiffness to the base plate 13 to prevent bending and twisting of the support frame 10 in longitudinal direction of the base plate 13, i.e. transverse to the transport path formed by the driving or transport belts.
In the embodiment shown, the reinforcing elements are interconnected plate-shaped ribs 38, integrally formed with the base plate 13. The ribs 38 extend over a distance transversely to the back surface 12.
It is advantageous to distribute the plate-shaped ribs 38 over the back surface 12 of the base plate 13 in such a manner that mounting compartments are formed, such as compartments 39 and 40 for accommodating a driving arrangement and control electronics, respectively.
The support frame 10 is preferably of a light-weight metal, such as aluminium or like material, and manufactured in one piece by cast moulding, such as well-known in the prior art.
Figure 3 shows, in a schematic and illustrative manner, an exploded view representation of an example of a continuous or rotary or band type sealer device in accordance with the invention, comprising the support frame 10 shown in Figures 1 and 2.
For transporting foils to be sealed, a transport arrangement is provided, comprised of an endless first 51 and second driving or transport belt 52, which belts are oppositely positioned viewed in the plane of the base plate 13. The first belt 51 runs at pulley wheel assemblies 53, 54, comprised of a pulley wheel and corresponding support axle, which pulley wheel assemblies 53, 54, when assembled, are supported by the pulley wheel support piles 20 and 22, respectively. The second belt 52 runs at pulley wheel assemblies 55, 56, comprised of a pulley wheel and corresponding support axle, which pulley wheel assemblies 55, 56, when assembled, are supported by the pulley wheel support piles 21 and 23, respectively.
For driving the belts 51, 52 a driving arrangement 62 is provided, comprising an electric motor and transmission gearing, arranged for driving the pulley wheels 54, 56 of the first and second driving belt 51, 52. The electric motor and transmission gearing are arranged at the back surface 12 of the support frame in the compartment 39 formed by the plate-shaped ribs 38, opposite the pulley wheel support piles 22, 23 at the first short side 14 of the support frame 10.
In use, the first 51 and second belt 52 are driven in a direction indicated by arrows 57, 58, respectively. The oppositely positioned tight sides 59, 60 of the first 51 and second transport belt 52 form a transport path 61 therebetween, for transporting foils to be sealed in longitudinal direction of the support frame 10. That is, in the embodiment shown, in a transport direction, indicated by arrow 67, from the second 15 to the first short side 14 of the support frame 10. The tight sides 59, 60 may be arranged to form a small gap providing the transport path 61.
The first 51 and second belt 52 are guided by a first 63 and second guide plate 64 comprising guiding grooves 66. The guide plates 63, 64 when assembled are supported by the mounting support piles 24 - 27 using mounting screws 65, for example.
The guide plates 63, 64 operate also as heat shield for shielding a sealing station 70, in particular a heat sealing station comprised of a first 72 and second heating element 73, oppositely arranged to form a gap 71 for passing the foils or foil parts to be sealed. The guide plates 63, 64 are of metal or a heat resistant plastic or the like.
The first heating element 72, when assembled, is supported by the sealing station support piles 30, 31 integral with the base plate 13. The second heating element 73 is supported by sealing station support piles 74, 75 removably attached to the sealing station support clips 32, 33, respectively.
Seen in the transport direction 67 past the sealing station 70, a pressure device 80 comprised of a first 81 and a second pressure wheel or roller 82 is arranged. When assembled, the first pressure wheel 81 is supported by the pressure wheel support pile 28 and the second pressure wheel 82 is supported by the pressure wheel support clip 29 receiving a removable support pile 83 to which the second pressure wheel 82 is pivotally connected, such that the first 81 and second pressure wheel 82 are oppositely positioned and in line with the gap 71 of the sealing station 70.
An adjustable pressure or load measuring and adjusting device 84 operates at the second pressure wheel, for adjusting the pressure exerted at the foils to be sealed, to provide a required seal quality and strength.
In the compartment 40 at the back surface 12 of the base plate control electronics 85 are accommodated, for controlling operation of the driving arrangement 62, a display device 86, positioned in the recess 37 of the support frame 10, and a printing device 87, positioned at the front surface 11 in the recess 35 of the support frame 10, for printing text and/or codes at the foils to be sealed.
The invention provides an easily and quickly to assemble precise sealer device, requiring very little adjustment for providing seals of a required quality, having a compact design and being of a relative light weight compared to prior art sealer devices.
Although not shown, the sealer device may comprise further components and a housing providing a supporting surface for guiding the transport of a bag, medical pouch or other foil material to be sealed along the transport path past the sealing station and pressure device.

Claims (15)

1. Sealinrichting voor het sealen van folies, zoals folies welke een zak of een medische buidel vormen, welke sealinrichting een ondersteuningsframe omvat dat een sealstation, een drukinrichting voor het op tegenover elkaar gelegen foliedelen uitoefenen van mechanische druk, een roterende transportinrichting voor het langs een transportpad voorbij het sealstation en de drukinrichting verplaatsen van de foliedelen en een aandrijfinrichting voor het aandrijven van de transportinrichting ondersteunt, gekenmerkt door een metalen ondersteuningsframe, omvattende een langwerpige grondplaat met een voorvlak omvattende als één geheel met de grondplaat gevormde ondersteunings-elementen welke het sealstation, de drukinrichting en de roterende transportinrichting ondersteunen zodanig, dat het transportpad zich in langsrichting van de grondplaat uitstrekt, en een achtervlak omvattende als één geheel met de grondplaat gevormde verstevigingselementen welke over het achtervlak zijn verdeeld en stijfheid aan de grondplaat verschaffen om buiging en tordering van het ondersteuningsframe in een richting dwars op het transportpad te voorkomen.A sealing device for sealing foils, such as foils forming a bag or a medical pouch, which sealing device comprises a supporting frame that a sealing station, a printing device for exerting mechanical pressure on opposite film parts, a rotating transport device for passing along a transport path of the foil parts beyond the sealing station and the printing device and supports a drive device for driving the transport device, characterized by a metal supporting frame, comprising an elongated base plate with a front surface comprising support elements formed integrally with the base plate and comprising the sealing station, the printing device and the rotating transport device support such that the transport path extends in the longitudinal direction of the base plate, and a rear surface comprising reinforcement elements formed as a whole with the base plate and distributed over the rear surface and sti provide rigidity to the base plate to prevent bending and twisting of the support frame in a direction transverse to the transport path. 2. Sealinrichting volgens conclusie 1, waarin de verstevigingselementen onderling verbonden plaatvormige ribben zijn welke zich dwars op het achtervlak van de grondplaat van het ondersteuningsframe uitstrekken.Seal device as claimed in claim 1, wherein the reinforcement elements are mutually connected plate-shaped ribs which extend transversely to the rear surface of the base plate of the support frame. 3. Sealinrichting volgens conclusie 2, waarin de plaatvormige ribben over het achtervlak van de grondplaat zijn verdeeld en montagecompartimenten vormen voor het onderbrengen van de aandrijfinrichting en stuurelektronica.3. Seal device according to claim 2, wherein the plate-shaped ribs are distributed over the rear surface of the base plate and form mounting compartments for accommodating the drive device and control electronics. 4. Sealinrichting volgens een van de voorgaande conclusies, waarin de aandrijfinrichting eerste en tweede eindloze aandrijfsnaren omvat met tegenover elkaar gelegen getrokken zijden welke daartussen het transportpad vormen, waarin de ondersteuningselementen van het ondersteuningsframe opstaande snaarwiel-ondersteuningspilaren omvatten welke zich dwars op het voorvlak van de grondplaat van het ondersteuningsframe aan elke korte zijde hiervan uitstrekken en snaaraandrijfwielen ondersteunen, welke de aandrijfsnaren aandrijven.Sealing device as claimed in any of the foregoing claims, wherein the driving device comprises first and second endless drive belts with opposite sides drawn which form the transport path, wherein the support elements of the support frame comprise upright belt wheel support pillars which extend transversely to the front face of the extend base plate of the support frame on each short side thereof and support belt drive wheels which drive the drive belts. 5. Sealinrichting volgens conclusie 4, waarin de ondersteuningselementen van het ondersteuningsframe verder opstaande montage-ondersteuningspilaren omvatten welke zich dwars op het voorvlak van de grondplaat van het ondersteuningsframe aan elke korte zijde hiervan uitstrekken en eerste en tweede geleidingsplaten ondersteunen voor het geleiden van de eerste en tweede aandrijfsnaren.A sealing device according to claim 4, wherein the support elements of the support frame further comprise upright mounting support pillars which extend transversely to the front surface of the base frame of the support frame on each short side thereof and support first and second guide plates for guiding the first and second guide plates second drive belts. 6. Sealinrichting volgens conclusie 3 en een van de conclusies 4 of 5, waarin de aandrijfinrichting een elektrische motor en aandrijfoverbrenging omvat ingericht voor het aandrijven van de snaarwielen van de eerste en tweede aandrijfsnaar, waarin de elektrische motor en aandrijfoverbrenging zijn ondergebracht in een door de plaatvormige ribben op het achtervlak van de grondplaat van het ondersteuningsframe tegenover de snaarwiel-ondersteuningspilaren gevormd compartiment aan een korte zijde van het ondersteuningsframe.Sealing device according to claim 3 and one of claims 4 or 5, wherein the driving device comprises an electric motor and drive transmission adapted to drive the belt wheels of the first and second drive belt, wherein the electric motor and drive transmission are accommodated in a plate-shaped ribs on the rear surface of the base plate of the support frame opposite the belt wheel support pillars formed compartment on a short side of the support frame. 7. Sealinrichting volgens een van de voorgaande conclusies, waarin de drukinrichting tegenover elkaar geplaatste eerste en tweede drukwielen omvat voor het tussen de eerste en tweede drukwielen transporteren van de foliedelen, waarin de ondersteuningselementen van het ondersteuningsframe een opstaande drukwiel-ondersteuningspilaar omvatten welke zich dwars op het voorvlak van de grondplaat van het ondersteuningsframe uitstrekt voor het ondersteunen van het eerste drukwiel en een drukwielondersteuningsclip welke zich dwars op het voorvlak van de grondplaat van het ondersteuningsframe uitstrekt voor het losneembaar ondersteunen van een ondersteuningspilaar van het tweede drukwiel.A sealing device according to any one of the preceding claims, wherein the printing device comprises opposed first and second printing wheels for transporting the film parts between the first and second printing wheels, wherein the supporting elements of the supporting frame comprise an upright printing wheel supporting pillar which extends transversely to the front face of the base frame of the support frame extends to support the first pressure wheel and a pressure wheel support clip extending transversely to the front surface of the base plate of the support frame for releasably supporting a support pillar of the second pressure wheel. 8. Sealinrichting volgens conclusie 4, 5, 6 of 7, waarin de snaarwiel- en drukwielondersteuningspilaren een holle cilindrische vorm hebben met doorgaande eindopeningen voor het opnemen van aandrijfassen voor het aandrijven van de snaar-aandrijfwielen en het drukwiel.A sealing device according to claim 4, 5, 6 or 7, wherein the string wheel and pressure wheel support pillars have a hollow cylindrical shape with through-through end openings for receiving drive shafts for driving the belt drive wheels and the pressure wheel. 9. Sealinrichting volgens een van de voorgaande conclusies, waarin het sealstation eerste en tweede op afstand tegenover elkaar gelegen verwarmingselementen omvat welke een opening daartussen vormen voor het transporteren van de folies, waarbij de ondersteuningselementen van het ondersteuningsframe op afstand van elkaar gelegen sealstation-ondersteuningspilaren omvatten, welke zich dwars op het voorvlak van de grondplaat van het ondersteuningsframe aan een lange zijde hiervan uitstrekken en het eerste verwarmingselement ondersteunen, en op afstand van elkaar gelegen sealstationondersteuningclips welke zich dwars op het voorvlak van de grondplaat van het ondersteuningsframe aan een andere lange zijde hiervan uitstrekken voor het losneembaar ondersteunen van verdere ondersteuningspilaren van het tweede verwarmingselement.9. Seal device as claimed in any of the foregoing claims, wherein the sealing station comprises first and second spaced-apart heating elements which form an opening between them for transporting the foils, wherein the supporting elements of the supporting frame comprise spaced apart sealing station supporting pillars which extend transversely to the front face of the base plate of the support frame on a long side thereof and support the first heating element, and spaced apart sealing station support clips which extend transversely to the front face of the base plate of the support frame on another long side thereof extending for releasably supporting further support pillars of the second heating element. 10. Sealinrichting volgens een van de voorgaande conclusies, waarin de grondplaat van het ondersteuningsframe een omtreksrand omvat welke zich dwars op het voor- en achtervlak van de grondplaat uitstrekt.A sealing device according to any one of the preceding claims, wherein the base plate of the support frame comprises a circumferential edge which extends transversely to the front and rear surfaces of the base plate. 11. Sealinrichting volgens conclusie 10, waarin een deel van de grondplaat van het ondersteuningsframe uitsparingen vanaf de omtreksrand heeft voor het opnemen van een afdrukinrichting voor het maken van afdrukken op de langs het transportpad getransporteerde foliedelen.Sealing device according to claim 10, wherein a part of the base plate of the support frame has recesses from the peripheral edge for receiving a printing device for making prints on the foil parts transported along the transport path. 12. Sealinrichting volgens conclusie 10 of 11, waarin een deel van de opstaande omtreksrand van het ondersteuningsframe van een uitsparing is voorzien voor het ondersteunen van een weergeefinrichting.Sealing device as claimed in claim 10 or 11, wherein a part of the upright peripheral edge of the supporting frame is provided with a recess for supporting a display device. 13. Sealinrichting volgens een van de voorgaande conclusies, waarin het ondersteuningsframe van lichtgewicht metaal is.Sealing device according to one of the preceding claims, wherein the support frame is made of lightweight metal. 14. Sealinrichting volgens een van de voorgaande conclusies, waarin het ondersteuningsframe uit één stuk is gevormd.A sealing device according to any of the preceding claims, wherein the support frame is formed in one piece. 15. Ondersteuningsframe van een sealinrichting volgens een van de voorgaande conclusies.15. Support frame of a sealing device according to one of the preceding claims.
NL2011140A 2013-07-11 2013-07-11 Sealer device for the sealing of foils and a support frame of such sealer device. NL2011140C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2011140A NL2011140C2 (en) 2013-07-11 2013-07-11 Sealer device for the sealing of foils and a support frame of such sealer device.

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NL2011140 2013-07-11
NL2011140A NL2011140C2 (en) 2013-07-11 2013-07-11 Sealer device for the sealing of foils and a support frame of such sealer device.

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB736697A (en) * 1952-08-27 1955-09-14 Robinson Waxed Paper Co Ltd Improvements in or relating to heat-sealing apparatus
US3246538A (en) * 1963-10-29 1966-04-19 Ametek Inc Casing
FR2110514A5 (en) * 1970-10-20 1972-06-02 Plastic Service Heat sealing machine - adjustable while operating to suit different sizes or thickness of plastic bags
US4108021A (en) * 1975-12-18 1978-08-22 Jeep Corporation Transfer case
EP0268917A2 (en) * 1986-11-22 1988-06-01 Focke & Co. (GmbH & Co.) Packaging machine, especially for cigarette packets
US6526728B1 (en) * 2000-10-25 2003-03-04 Conflex Incorporated Method and apparatus for sealing articles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB736697A (en) * 1952-08-27 1955-09-14 Robinson Waxed Paper Co Ltd Improvements in or relating to heat-sealing apparatus
US3246538A (en) * 1963-10-29 1966-04-19 Ametek Inc Casing
FR2110514A5 (en) * 1970-10-20 1972-06-02 Plastic Service Heat sealing machine - adjustable while operating to suit different sizes or thickness of plastic bags
US4108021A (en) * 1975-12-18 1978-08-22 Jeep Corporation Transfer case
EP0268917A2 (en) * 1986-11-22 1988-06-01 Focke & Co. (GmbH & Co.) Packaging machine, especially for cigarette packets
US6526728B1 (en) * 2000-10-25 2003-03-04 Conflex Incorporated Method and apparatus for sealing articles

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