EP2048084B1 - Outil pour une ensacheuse destiné à déformer une bande de matériau d'emballage dans un tuyau souple - Google Patents

Outil pour une ensacheuse destiné à déformer une bande de matériau d'emballage dans un tuyau souple Download PDF

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Publication number
EP2048084B1
EP2048084B1 EP08165920A EP08165920A EP2048084B1 EP 2048084 B1 EP2048084 B1 EP 2048084B1 EP 08165920 A EP08165920 A EP 08165920A EP 08165920 A EP08165920 A EP 08165920A EP 2048084 B1 EP2048084 B1 EP 2048084B1
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EP
European Patent Office
Prior art keywords
wrapping material
forming shoulder
tool
channel
strip
Prior art date
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Application number
EP08165920A
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German (de)
English (en)
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EP2048084A3 (fr
EP2048084A2 (fr
Inventor
Michael Zellermann
Hartmut Ringel
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Mediseal GmbH
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Mediseal GmbH
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Publication date
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Publication of EP2048084A2 publication Critical patent/EP2048084A2/fr
Publication of EP2048084A3 publication Critical patent/EP2048084A3/fr
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    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/22—Forming shoulders; Tube formers
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/02—Plurality of alternative input or output lines or plurality of alternative packaging units on the same packaging line for improving machine flexibility

Definitions

  • the invention relates to a tool for a tubular bag machine for forming a wrapping material strip in a hose with a multi-part forming shoulder and a filling tube. At the same time, the invention relates to a tubular bag machine with such a tool.
  • the forming shoulder and the filling tube are arranged in a vertical tubular bag machine with a common central axis, which is usually aligned vertically. This applies to an introduction of the filling material through the filling tube by using gravity. However, it is also possible to arrange the forming shoulder in the horizontal bagging machine so that the central axis is horizontal. Especially in this case, the application of a screw dosage offers.
  • contents are in particular powdered or granular solid goods, such as sugar, salt, tobacco crumbs, tobacco dust, tea leaves or the like, but also liquid or pulpy pasty masses, such as mustard, spices, milk or the like in question.
  • solid bodies such as chocolates, bars, dry yeast, disposable syringes, toothpicks, ice cream spoons or the like can be packed in tubular bags.
  • the CH 490 995 is a tool for a tubular bag machine for forming a flat single-ply wrapping material strip in a tube known.
  • the tool consists in Essentially from a multi-part form shoulder and a filling tube.
  • the forming shoulder is formed divided in a dividing plane defined by the center axis of the filling tube and the forming shoulder and by the center line of the wrapping material strip.
  • the forming shoulder is also formed divided in a second parting plane, which is arranged vertically and parallel to the axis of the roll from which the wrapping material strip is unwound.
  • the forming shoulder thus has a stationary part and two movable parts.
  • the movable parts of the forming shoulder are arranged so as to be manually pivotable relative to one another about two axes of rotation extending parallel to the central axis, so that they can be brought into a closed and an open position.
  • the axes of rotation of the movable parts of the forming shoulder are in the second parting plane through the central axis.
  • the two pivotable parts of the forming shoulder are movable into the closed position and the opened position for easier threading of the wrapping material strip into a channel between the forming shoulder and the filling tube.
  • the forming shoulder has a guide surface for the wrapping material strip and the channel for receiving the filling tube.
  • the filling tube can be pivoted out of the channel in the opened position of the two pivotable parts of the forming shoulder by a pivoting movement about a horizontal or a vertical axis. Between the filling tube and the channel, a circumferentially continuous circumferential passage gap for the passage of the wrapping material strip or hose is formed. It is not clear if and how the hose can be closed with a longitudinal seal.
  • the space in the interior of the forming shoulder for facilitated handling of the threaded wrapping material strip is advantageously accessible. Nevertheless, considerable skill is required to bring the wrapping material strips in a stable inlet position for production.
  • a vertical bagging machine with a tool from a forming shoulder and a filling tube is known.
  • the forming shoulder is formed divided in a vertical parting plane, so that the forming shoulder can be opened.
  • the parting plane is arranged parallel to the axis of the roll from which the wrapping material strip is unwound and goes through the center axis of the filling tube. It is formed as a shoulder coat of two separate shell parts.
  • Next building units are each formed from a shell part and a neck part. One structural unit can be removed from the other structural unit in order to be able to remove the filling tube from the forming shoulder transversely to the transport direction. By changing the distance between the units and the conversion to another bag width is possible.
  • a split form shoulder for a tubular bag machine known.
  • the parting line between the two parts of the forming shoulder extends vertically, in such a way that a plane parallel to the parting plane passes through the axis of the roll from which the wrapping material strip is unwound.
  • an adjusting device for changing and fixing the distance between the two parts of the forming shoulder This is to serve the purpose of being able to easily make a change to a different width of the wrapping material strip.
  • the two parts of the forming shoulder are held fixed locally and not movable against each other here. The change in the distance between the two parts of the forming shoulder is used only when converting the tubular bag machine to a wrapping material strips with different width.
  • a tool for a tubular bag machine which has as essential elements a forming shoulder and a filling tube.
  • the forming shoulder has a channel for receiving the filling tube. Between the filling tube and the channel, a passage gap is formed for the passage of the wrapping material strip, which is here converted into a tube.
  • the channel begins at a deflection edge.
  • the deflection edge is formed from the blend line of the guide surface of the forming shoulder in the inlet region with the channel. The deflection edge does not extend completely over the circumference of the channel, but is open-edged, wherein the shoulder-like collar of the forming shoulder are generally asymmetrical and also overlap.
  • the Wear has the consequence.
  • the wear is most noticeable in the area of the deflection edge.
  • On the wrapping material strip acts by a withdrawal device of the tubular bag machine, a tensile stress, from which determines the pressure of the HüllmaterialstMails against the deflection.
  • the unfavorable friction and wear conditions occurring there, ie in the area of the deflection edge, are the reason why the forming shoulder can only function properly over a limited period of use and then has to be replaced.
  • the forming shoulder is formed in several parts and has a small insert which forms part of the forming shoulder in the region of the deflection edge.
  • the insert may be made of a harder material than the remainder of the forming shoulder.
  • the insert may be made of a harder material than the remainder of the forming shoulder.
  • a multi-part form shoulder for a tubular bag machine known.
  • the forming shoulder is formed to form a double tube so that the channel passing through the forming shoulder has a relatively complicated surface.
  • the forming shoulder is divided by a dividing plane into three parts.
  • the parting plane extends in this vertical tubular bag machine in the vertical direction through the central axes of the two channels connected to form the double tube.
  • the two detachable parts of the multi-part form shoulder form covers for the channel. The parting plane thus extends parallel to the rear plane of the forming shoulder.
  • the parting plane lies in the plane of the wrapping material strip.
  • the tubular bag machine has no forming shoulder but a plurality of spaced forming rolls.
  • the height position of the lower forming roll can be adjusted in the vertical direction.
  • the invention has for its object to provide a tool for a tubular bag machine, in which the problem of pinching the Hüllmaterialst shapess is significantly reduced in a gap of the forming shoulder during threading.
  • the invention relates to a tool for a tubular bag machine, which serves for forming a flat HüllmaterialstMails into a tube.
  • the tool has a filling tube and a forming shoulder with a first part, a second part and a third part.
  • the forming shoulder has a channel for receiving the filling tube. Between the filling tube and the channel, a passage gap for the passage of the HüllmaterialstMails or hose is formed.
  • the third part is stationarily arranged and vertically delimits the channel over a circumferential angle smaller than 180 °.
  • the first part and the second part form the channel after the third part.
  • the forming shoulder is formed divided in a dividing plane defined by the center axis of the filling tube and the forming shoulder and by the center line of the wrapping material strip to form the parts.
  • the first part and the second part are formed and arranged so pivotable relative to each other that the two parts are movable in a closed position around the filling tube and in an open position and they are at least approximately radially to the surface of the transition to the closed position Filling tube and thus move perpendicular to the extension of the HüllmaterialstMakes in the circumferential direction.
  • the tool in the tubular bag machine for forming a wrapping material strip into a tube has essentially two parts, namely the forming shoulder and the Filling tube.
  • the forming shoulder is a solid body of solid, unyielding material, either solid or sheet metal, usually steel or other material.
  • the wrapping material strip is removed as a flat web from the roll and formed by means of the forming shoulder into a tube.
  • the shell material is plastic.
  • the wrapping material strip can be one or more layers. In multi-layer operation, the individual layers cover more or less, depending on whether they have the same or different width. The multiple layers are simultaneously formed into a tube with the forming shoulder.
  • the tube can enclose a round, rectangular, or otherwise convex shaped cross-section.
  • the geometry of the guide surface of the forming shoulder - that is the surface which comes into contact with the wrapping material strip - is dimensioned and spatially designed so that each material fiber of the wrapping material strip travels an equal path during the forming and the distance of adjacent material fibers remains constant transversely to the direction.
  • the wrapping material strip is thus partially neither stretched, elongated or elastically-plastically deformed.
  • HüllmaterialstMail determines the width of the HüllmaterialstMails the width of the space for the single form shoulder within the plurality of adjacent forming shoulders.
  • the defined by the center axes of the forming shoulders and the filling tubes pitch corresponds to the width of the wrapping material strip. Threading or reel changes using the adhesive technique are becoming increasingly difficult with small diameters.
  • the first area is a usable area towards the central axis, where the wrapping material strip tends to approach a symmetrical relative position and maintain this relative position during operation of the tubular bag machine.
  • the second area on the other hand, there is a tendency of lateral bleeding over the casing strip, so that it is increasingly distanced from the symmetrical relative position.
  • the threading operation must be designed so that the wrapping material strip is within the first described area.
  • the problem outlined not only applies to the threading of the wrapping material strip in the passage gap at the start of work, but also when the wrapping material is torn or a roll change is pending.
  • An outline of the HüllmaterialstMails during operation is quite true, especially if it is the material of the HüllmaterialstMails sensitive nonwoven material, such as cellulose.
  • the filling tube for threading the HüllmaterialstMails must be removed from the forming shoulder. This is done by axial extraction, ie by a relative movement of the filling tube in the direction of the central axis. Then the wrapping material strip is crumpled or twisted together and pushed through the thus far become accessible channel. Subsequently, the filling tube must be installed again, for which it is necessary to open the compressed or twisted wrapping material strip so that it gets a tubular shape and the filling tube can be used in its interior.
  • the invention is based on a split form shoulder.
  • the division of the forming shoulder is effected by a first parting plane which passes as a vertical dividing plane through the common central axis of the filling tube and the forming shoulder and through the center line of the wrapping material strip.
  • This first parting plane is thus perpendicular to the axis of the roll from which the wrapping material strip is unwound.
  • It uses a second parting plane, which runs horizontally in a vertical bagging machine. In this way, the Formschulter receives at least three parts.
  • a part is designed as a stationary part, ie it is not moved during production and can be replaced if necessary at wear.
  • the two other parts are movable parts, which are arranged pivotable about one or two axes of rotation extending parallel to the central axis.
  • the moving parts of the Forming shoulder and the filling tube can be pivoted back and forth between a closed position and an open position.
  • In the closed position of the moving parts and in the channel of the forming shoulder inserted filling tube results between the outer wall of the filling tube and the inner wall of the channel in the forming shoulder a substantially continuous circumferential passage gap for the passage of HüllmaterialstMails or the tube formed.
  • the passage gap passes largely through 360 ° and is designed open only for the purpose of passage and preparation of the edges of the wrapping material strip for the longitudinal sealing.
  • the stationary part of the forming shoulder extends vertically throughout the entire height of the tool. In the circumferential direction of the channel or the filling tube, however, the stationary part extends over a circumferential angle which is smaller than 180 °. An angle of the order of 110 ° shows good results here. This is related to the pivotal movement of the moving parts of the forming shoulder and their special design.
  • the regions of the movable parts of the forming shoulder, which along the fixed part of the forming shoulder along the channel, are designed and pivotable about their axes of rotation that they at least approximately radially to the surface of the filling tube and thus perpendicular to the transition to the closed position to move the extension of the wrapping material strip in the circumferential direction.
  • the axes of rotation about which the moving parts of the forming shoulder are pivoted lie away from the user behind the second parting plane.
  • the two axes of rotation can advantageously be combined in a common axis of rotation, which is then arranged in the first parting plane.
  • a controlled drive is preferably provided for the two moving parts of the forming shoulder.
  • a pneumatic, hydraulic or electric drive understood, which can be triggered by a corresponding control signal.
  • This drive is designed and constructed so that when it is switched on, the moving parts of the forming shoulder are movable at least from the closed position into the opened position. Also, the movement from the open position to the closed position can be provided with this controlled drive. It is more advantageous, however, if a return spring is used for this movement, whose spring force is so weak that it does not bring the risk of pinching the fingers of the operator with it.
  • the shape of the stationary part is matched to the shape of the moving parts of the forming shoulder.
  • the stationary part can be formed in one or more pieces. It goes, due to the second parting plane, in its upper part in a cap, which not only forms a guide surface for the wrapping material strip, which is not changed even when opening the moving parts.
  • the cap may be formed to cover, in the vertical projection, the moving parts of the forming shoulder in the closed position, so that there is no danger to the incoming wrapping material strip. In the area of the cap begins the channel of the Formschulter.
  • the wrapping material strip may extend, limited by the outer diameter of the filling tube, by a little more than 180 °, resulting in that when the filling tube is pivoted into the channel of the cap, the wrapping material strip is stiffened in the area facing away from the operator.
  • the two moving parts of the forming shoulder from the closed position in the open position are movable, so that the channel from the front of the bag machine is easily accessible.
  • This open position is advantageously used when threading the wrapping material strip.
  • the controlled drive intermediate positions between the closed position and the open position on the moving parts of the forming shoulder can bring about, which can be used in conjunction with an evasive mounted filling tube, using the adhesive technique and the doubling of the thickness the wrapping material strip to allow uninterrupted work when changing roles. A threading process is then only necessary if a demolition of the wrapping material strip has occurred.
  • the position of the first parting plane does not serve the mastery of the wear problem described above and also not the easier production of the forming shoulder, but refers to the threading problem. Threading can be done more easily and in less time.
  • the accessibility of the canal is improved.
  • the form shoulder is divided into at least three parts, but may also have four or more parts. At least two parts are divided as required by this first parting plane. At least the two parts of the forming shoulder which are divided by the first dividing plane are arranged so as to be movable, preferably by means of the controlled drive, so that the parts are moved not only during assembly of the forming shoulder on the tubular bag machine but also during the threading process, ie at the start of work. at a demolition of the wrapping material strip and during a roll change.
  • the movement of the two relatively movable parts of the forming shoulder is brought about by a movement stroke, one end of which is determined by the closed position of the parts of the forming shoulder and the other end by the opened position of the parts of the forming shoulder.
  • the closed position is determined so that no disadvantageous gap formation between the movable parts of the forming shoulder and its stationary part occurs in this position, in which run in the wrapping material strips and could jam there.
  • the open position the cross-section of the channel is increased so that the filling tube can be removed from the channel not only by an axial movement, but also by a substantially perpendicular movement to the central axis of the filling tube. Also intermediate positions between the closed position and the open position are possible.
  • the deflectably mounted filling tube can remain substantially in place and the relative movement of the two divided parts of the forming shoulder is sufficient to increase the thickness of the passage gap so that even a splice without the risk of tearing pulled through the enlarged passage gap can be.
  • the extraction of the filling tube and the introduction of the same into the channel by a substantially perpendicular to the central axis extending movement requires only a relatively small stroke for the filling tube and thus only a much smaller space than it is required for axial removal.
  • Another advantage is that above arranged metering devices can remain there, so can remain untouched during installation and removal of the filling tube.
  • the invention can be implemented in various applications. It can be used, for example, when working in one or more layers, ie one or more wrapping material strips are transferred to a forming shoulder at the same time in the tube form. With particular advantage, however, the invention can also be used when multi-lane is worked side by side, especially when cut from a relatively wide wound on the roll web several side-by-side HüllmaterialstMail and fed without application of a spread a plurality of juxtaposed forming shoulders.
  • the outline design of the movable parts of the forming shoulder and the geometry of movement about the axes of rotation are dimensioned so that a horizontal space rectangular space, the width of the division of the wrapping material strip is not exceeded. This multi-lane operation without spreading is possible.
  • the side by side arranged in the division form shoulders can be operated independently. The smaller the diameter of the tubular bag to be produced, the more the advantages of the invention become apparent in a shortened threading time and improved accessibility.
  • the forming shoulder may be so divided and the moving parts of the forming shoulder may be movably arranged such that the channel formed by these parts at least in the closed position encloses the filling tube more than half the circumference. In the open position of the passage gap is increased so that the easier handling of the wrapping material strip is made possible. In general, the entire channel will surround the filling tube to almost 360 ° of the circumference, with the exception of the edge open part in the region of the collar ends of the two movable parts of the forming shoulder, which may end with distance from each other or with overlap, depending on which type of Longitudinal sealing seam is used.
  • the invention is independent of whether a fin seal or an overlap seal is used.
  • the at least two parts of the forming shoulder which are separated by the parting plane described above, are arranged so movable relative to each other that results in the open position an enlarged opening at the edge open side of the channel.
  • This magnification is such that the distance between the parts of the forming shoulder is greater than the diameter of the filling tube.
  • the filling tube can be removed from the channel and re-installed with a movement substantially perpendicular to the central axis of the filling tube and the forming shoulder.
  • the wrapping material strip can also with a substantially perpendicular to the central axis of the filling tube and the forming shoulder extending movement into the channel be threaded.
  • the controlled drive for the return movement of the two parts of the forming shoulder in the closed position a spring, in particular a leg spring, be assigned.
  • the controlled drive thus provides only the opening stroke, while the closing stroke is brought about by the spring.
  • This aims to make the force of the spring smaller than the force exerted by the controlled drive on the moving parts during the opening stroke. This takes into account that the operator manually holds the two edges of the wrapping material strip during the threading process in order to achieve a symmetrical position of the wrapping material strip and a tightening thereof.
  • the movable parts of the forming shoulder are arranged pivotable about a common axis of rotation, which is arranged in the first parting plane on the back of the filling tube, so the operator turned away is particularly advantageous.
  • This position of the common axis of rotation allows not only a symmetrical movement of the movable parts to each other, but in a special way, a radial movement of essential areas of the movable parts of the forming shoulder in the transition to the closed position. These areas thus move perpendicular to the surface of the wrapping material strip or, in other words, radially to the center axis of the filling tube.
  • the channel can be made optimally accessible in the open position of the moving parts.
  • the stationary part of the forming shoulder merges in its upper region into a stationarily arranged cap or is connected to such a cap, which has a guide surface for the wrapping material strip.
  • the position and the design of this guide surface always remain constant, ie also in the open position of the forming shoulder, so that the transfer of the wrapping material strip from its planar shape into the tubular shape can always take place reproducibly under the same conditions.
  • the provided at the upper end of the fixed part of the forming shoulder cap in the vertical projection from above covers the contours of the moving parts of the forming shoulder so that they lie in the closed position as it were in the shadow of the cap, at least relative to the Direction of movement of the wrapping material strip.
  • the cap of the forming shoulder should have a width in the inlet region of the wrapping material strip, which corresponds to the width of the wrapping material strip.
  • the wrapping material strip is supported over the entire surface in the area of the cap by the guide surface and changed in shape.
  • the width of the cap at the same time represents the maximum width of the forming shoulder. If the width of the cap corresponds to the pitch of a wrapping material strip to be processed in multiple lanes, it is possible to work in multiple lanes without spreading the individual wrapping material strips. This is especially advantageous in the production of bags having a bag width of the order of 1 cm or less.
  • the cap of the forming shoulder is divided by the two moving parts of the forming shoulder through the second dividing plane perpendicular to the central axis of the filling tube or the forming shoulder.
  • the cap is usually formed in one piece, which does not preclude that its downwardly extending extension is formed by an extension or by an attached part, which is then also arranged stationary.
  • the dividing plane is arranged so that the intersection line between the dividing plane and the channel in the stationary part of the forming shoulder encloses slightly more than half the circumference, a particularly good transition is achieved on the wrapping material strip during its shaping.
  • the outline of the relatively movable parts is designed to be within the pitch of the forming shoulders.
  • the space provided by the division available rectangular or cuboid space must therefore be exceeded or left in any position of the parts.
  • the pitch corresponds to the width of the wrapping material strips when working in multi-lane operation without spreading the wrapping material strip.
  • the tool with its described features represents the heart of a tubular bag machine.
  • the essential character and the decisive advantages of such a Tubular bag machine are determined by a tool having the features according to at least one of claims 1 to 11.
  • tubular bag machine with a controlled drive for the relative movement of the moving parts of the forming shoulder during the forming of the wrapping material strip into the tube to allow an automatic roll change without Elnfädelvorgang.
  • the wrapping material strip can be formed in one or more layers.
  • the open position of the parts of the forming shoulder can serve to facilitate threading the wrapping material strip into the channel.
  • the passage gap can be formed substantially continuously encircling.
  • Fig. 1 shows the heart of a vertical bagging machine 1 on the example of several juxtaposed forming shoulders 2.
  • each form shoulder 2 includes a filling tube 3 ( Fig. 2 ).
  • Each forming shoulder 2 forms, together with the associated filling tube 3, a tool 4 for forming a respective schematically represented wrapping material strip 33 from a flat position in a tube.
  • the wrapping material strip 33 is conveyed along the conveying direction 34 by the tool 4.
  • Each tool 4 has a central axis 5.
  • the central axis 5 is at the same time the center axis of each filling tube 3 and each forming shoulder 2.
  • Each forming shoulder 2 is divided by a first parting plane 6 into two movable parts, namely a first part 7 and a second part 8.
  • the parting plane 6 passes through the central axis 5 and the center line 35 of the wrapping material strip 33. It is thus perpendicular to the plane of the Fig. 1 , In this way, each forming shoulder 2 has the two separate parts 7 and 8.
  • FIGS. 2 and 3 For example, two different layers are illustrated using the example of the two forming shoulders 2, which can assume the movable parts 7 and 8 of each forming shoulder 2 relative to one another.
  • the right recognizable form shoulder 2 is located in a closed position 9.
  • the left recognizable form shoulder 2 is in an open position 10.
  • the parts 7 and 8 of the forming shoulder 2 are arranged pivotably about a common vertical axis of rotation 11. In this case, the outline of the parts 7 and 8 corresponding to the cross section in Fig.
  • This spatial cuboid is divided by the division 12, the distance of the central axes 5 and the Dividing planes 6 from each other, set.
  • the pitch 12 corresponds to the width of the wrapping material strip, which occupies this in the plane.
  • the wrapping material strip 33 is shown schematically.
  • Each form shoulder 2 has, in addition to the moving parts 7 and 8, a stationary third part 13.
  • the fixed part 13 is also called a cap.
  • the stationary part 13 extends over the entire height of each forming shoulder 2 or each tool 4 and is in a single representation of the FIGS. 5 and 6 best recognizable.
  • the stationary part 13 may be formed in one piece or composed of several parts.
  • the stationary part 13 is formed opposite the moving parts 7 and 8 by a second parting plane 14 on the forming shoulder 2.
  • the second parting plane 14 represents a horizontal parting plane, which is thus perpendicular to the first parting plane 6 and thus also on the central axis 5. This does not exclude that the stationary part 13 has a downwardly extending extension 15 ( Fig. 5 ).
  • the fixed part 13 In its upper part, the fixed part 13 has a guide surface 16, which merges at a deflection edge 17 into a channel 18 which begins at this point.
  • the channel 18 serves to receive the filling tube 3. It is formed in the upper region of the part 13, ie above the second parting plane 14, exclusively by the stationary part 13. In the region of the extension 15 of the fixed part 13 forms only a peripheral region of the channel 18, which relates approximately to an angle of 110 °, as is apparent from Fig. 6 is recognizable.
  • each forming shoulder 2 is attached to a common support 19 for receiving a plurality of forming shoulders 2 side by side, for example screwed, as is apparent from Fig. 4 evident.
  • the carrier 19 is penetrated by a controllable drive 20, which in detail comprises a pneumatic cylinder 21 and a piston rod-like pressure piece 22, the stroke of which is transferable to the moving parts 7 and 8 of the forming shoulder 2.
  • the movable part 7 of the forming shoulder 2 has a nose 23 and the movable part 8 a nose 24, both of which cooperate with the pressure piece 22 of the controlled drive 20.
  • the moving parts 7 and 8 of each forming shoulder 2 are transferred from the closed position 9 in the open position 10.
  • the moving parts 7 and 8 of each forming shoulder 2 pivot about the common axis of rotation 11.
  • the common axis of rotation 11 goes behind a vertical plane 25 through the central axes 5 of adjacent forming shoulders 2.
  • the controllable drive 20, which is also hydraulic or can be designed electromotive, here is a return spring in the form of a leg spring 26 associated with the spring ends of the two parts 7 and 8 and acts on these.
  • the controlled drive 20 is released from the opened position 10
  • the force of the leg spring 26 can act and the movable parts 7 and 8 swing back into the closed position 9. But it is also possible to dispense with the return spring and form the drive 20 in the manner of a double-acting cylinder or the like.
  • each forming shoulder 2 results in the region of the channel 18 between the outer wall of the filling tube 3 and the inner wall of the channel 14 of the parts 7, 8 and 13 of the forming shoulder 2 a passage gap 27 for the wrapping material strip 33 in tube form.
  • the width of the passage gap 27 can only be slightly larger than the thickness of the wrapping material strip 33, in particular for small dimensions of the bag width.
  • the outer contour of the movable parts 7 and 8 of the forming shoulder 2 is designed so that adjacent to each other in the division 12 arranged forming shoulders 2 can be opened independently.
  • Another peculiarity of the moving parts 7 and 8 of each forming shoulder 2 is that the parts 7 and 8 adjacent to the stationary part 13 and its extension 15 have regions 28 which, upon pivoting of the moving parts 7 and 8 from the open position 10 in the closed position 9 approximately in the radial direction 29 and thus approximately perpendicular to the surface of the wrapping material strip 33 and the filling tube 3 move. This will certainly avoid trapping the wrapping material strip 33 at this point in the transition of the moving parts 7 and 8 from the open position 10 in the closed position 9.
  • a bolt 32 is arranged, which is part of a pivot bearing for the two moving parts 7 and 8 of the forming shoulder 2.
  • the bolt 32 is held and guided in corresponding bearings.

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  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Claims (11)

  1. Outil (4) pour une ensacheuse (1), destiné à transformer une bande de matériau d'emballage (33) plane en un tuyau souple, comportant
    un tube de remplissage (3); et
    un conformateur (2) muni d'une première partie (7), d'une deuxième partie (8) et d'une troisième partie (13),
    ledit conformateur (2) comportant un conduit (18) destiné à recevoir le tube de remplissage (3),
    une fente de passage (27) pour le passage de la bande de matériau d'emballage (33) ou du tuyau souple étant formée entre le tube de remplissage (3) et le conduit (18),
    la première partie (7) et la deuxième partie (8) en raccordement avec la troisième partie (13) formant conjointement le conduit (18),
    la troisième partie (13) étant agencée de manière fixe,
    le conformateur (2), pour former la première partie (7) et la deuxième partie (8), étant réalisé sous forme divisée dans un plan de séparation (6) défini par l'axe médian (5) du tube de remplissage (3) et du conformateur (2), ainsi que par la ligne médiane (35) de la bande de matériau d'emballage (33),
    la première partie (7) et la deuxième partie (8) étant réalisées et agencées de manière à pouvoir pivoter l'une par rapport à l'autre, de telle sorte que la première partie (7) et la deuxième partie (8) sont apte à être déplacées vers une position fermée (9) autour du tube de remplissage (3) et vers une position ouverte (10), caractérisé en ce que
    la troisième partie (13) délimite verticalement en continu le conduit (18) sur un angle circonférentiel inférieur à 180°,
    la première partie (7) et la deuxième partie (8) étant agencées de manière pivotante autour d'un axe de rotation (11) commun, qui est agencé dans le plan de séparation (6) sur la face arrière du tube de remplissage (3),
    la première partie (7) et la deuxième partie (8) étant réalisées et agencées de manière à pouvoir pivoter, de telle sorte que leurs zones (28), adjacentes à la partie (13) fixe, au moment du passage vers la position fermée (9) se déplacent dans la direction circonférentielle au moins sensiblement radialement (29) par rapport à la surface du tube de remplissage (3) et donc perpendiculairement à la direction longitudinale de la bande de matériau d'emballage (33).
  2. Outil (4) selon la revendication 1, caractérisé en ce que le conformateur (2) est divisé et la première partie (7) et la deuxième partie (8) sont mobiles, de telle sorte que
    le conduit (18), formé conjointement par les parties (7, 8), entoure au moins dans la position fermée (9) le tube de remplissage (3) sur plus de la moitié de la périphérie, et
    la fente de passage (27) dans la position ouverte (10) est agrandie de manière à permettre une manipulation plus aisée de la bande de matériau d'emballage (33).
  3. Outil (4) selon la revendication 1 ou 2, caractérisé en ce qu'à la première partie (7) et à la deuxième partie (8) est associé un système d'entraînement (20) commandé, par lequel les parties (7, 8) sont aptes à se déplacer entre la position fermée (9) et la position ouverte (10).
  4. Outil (4) selon la revendication 3, caractérisé en ce qu'un ressort, en particulier un ressort à branches (26), est associé au système d'entraînement (20) commandé, afin de rappeler les deux parties (7, 8) dans la position fermée (9).
  5. Outil (4) selon au moins l'une des revendications 1 à 4, caractérisé en ce que la troisième partie (13) fixe est prolongée dans sa zone supérieure par une calotte fixe ou est reliée à une telle calotte, qui comporte une surface de guidage (16) pour la bande de matériau d'emballage (33).
  6. Outil (4) selon la revendication 5, caractérisé en ce que la calotte, dans la zone d'entrée de la bande de matériau d'emballage (33), possède une largeur qui correspond à la largeur de la bande de matériau d'emballage (33).
  7. Outil (4) selon la revendication 5 ou 6, caractérisé en ce que la calotte est divisée par les deux parties mobiles, à savoir la première partie (7) et la deuxième partie (8), par un deuxième plan de séparation (14) orienté perpendiculairement à l'axe médian (5).
  8. Outil (4) selon la revendication 7, caractérisé en ce que le deuxième plan de séparation (14) est agencé de telle sorte que la ligne d'intersection entre le deuxième plan de séparation (14) et le conduit (18) entoure ledit conduit (18) dans la troisième partie (13) fixe sur à peu près plus de la moitié de la périphérie.
  9. Outil (4) selon au moins l'une des revendications 1 à 7, caractérisé en ce que la configuration et la géométrie de mouvement de la première partie (7) et de la deuxième partie (8) mobiles sont conçues de telle sorte que des conformateurs (2), agencés les uns à côté des autres en vue d'un mode de travail sur plusieurs bandes, peuvent pivoter indépendamment l'un de l'autre vers la position ouverte (10).
  10. Outil (4) selon au moins l'une des revendications 1 à 9, caractérisé en ce que la première partie (7) et la deuxième partie (8) sont agencées de manière à pouvoir pivoter autour d'un ou de deux axes de rotation (11) orientés en particulier parallèlement à l'axe médian (5).
  11. Ensacheuse (1) comportant un outil (4) avec les caractéristiques selon au moins l'une des revendications 1 à 10.
EP08165920A 2007-10-13 2008-10-06 Outil pour une ensacheuse destiné à déformer une bande de matériau d'emballage dans un tuyau souple Active EP2048084B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007049210A DE102007049210B3 (de) 2007-10-13 2007-10-13 Werkzeug für eine Schlauchbeutelmaschine zum Umformen eines Hüllmaterialstreifens in einen Schlauch

Publications (3)

Publication Number Publication Date
EP2048084A2 EP2048084A2 (fr) 2009-04-15
EP2048084A3 EP2048084A3 (fr) 2009-10-28
EP2048084B1 true EP2048084B1 (fr) 2011-11-23

Family

ID=39736474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08165920A Active EP2048084B1 (fr) 2007-10-13 2008-10-06 Outil pour une ensacheuse destiné à déformer une bande de matériau d'emballage dans un tuyau souple

Country Status (3)

Country Link
US (1) US7841155B2 (fr)
EP (1) EP2048084B1 (fr)
DE (1) DE102007049210B3 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415171A (en) * 1967-05-10 1968-12-10 Russell W. Wilson Adjustable package-forming machine
GB1250885A (fr) 1967-12-05 1971-10-20
ES361291A1 (es) * 1967-12-14 1970-11-01 Vnh Gebr Aquarius Nv Maschf Aparato para plegar un material laminado en un tubo.
CH674174A5 (fr) * 1987-12-09 1990-05-15 Kustner Ind Sa
US5046300A (en) * 1990-10-19 1991-09-10 Reynolds Consumer Products, Inc. Method and apparatus for forming a reclosable package
JPH1191729A (ja) 1997-09-19 1999-04-06 Shikoku Kakoki Co Ltd チューブ成形方法と装置及び包装容器製造機械
US6571498B1 (en) 1998-09-16 2003-06-03 Issac Cyrluk Shelf-front assembly for labeling and retaining products
DE10209356A1 (de) 2002-03-02 2003-09-18 Hassia Verpackung Ag Formschulter zur Herstellung von Dreiseiten-Siegelrand-Schlauchbeuteln
DE10217949A1 (de) * 2002-03-02 2003-12-11 Hassia Verpackung Ag Formschulter zur Herstellung von Dreiseiten-Siegelrand- Schlauchbeuteln
GB0212550D0 (en) * 2002-05-30 2002-07-10 Unilever Plc Process
DE10251072A1 (de) * 2002-11-02 2004-05-13 Rovema Verpackungsmaschinen Gmbh Formschulter zur Umformung einer Folienbahn
DE10330851A1 (de) * 2003-07-09 2005-01-27 Rovema Verpackungsmaschinen Gmbh Vertikale Schlauchbeutelmaschine
DE10330852A1 (de) * 2003-07-09 2005-02-10 Rovema Verpackungsmaschinen Gmbh Vertikale Schlauchbeutelmaschine
DE20320160U1 (de) 2003-12-29 2004-07-15 Toss Gmbh & Co. Kg Formschulter, insbesondere für Schlauchbeutelmaschinen

Also Published As

Publication number Publication date
EP2048084A3 (fr) 2009-10-28
US20090098993A1 (en) 2009-04-16
EP2048084A2 (fr) 2009-04-15
DE102007049210B3 (de) 2008-10-09
US7841155B2 (en) 2010-11-30

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