EP3527501A2 - Procédé et dispositif de fabrication de sachets d'infusion - Google Patents

Procédé et dispositif de fabrication de sachets d'infusion Download PDF

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Publication number
EP3527501A2
EP3527501A2 EP19153221.7A EP19153221A EP3527501A2 EP 3527501 A2 EP3527501 A2 EP 3527501A2 EP 19153221 A EP19153221 A EP 19153221A EP 3527501 A2 EP3527501 A2 EP 3527501A2
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EP
European Patent Office
Prior art keywords
label
thread
turret
bag
central
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19153221.7A
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German (de)
English (en)
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EP3527501A3 (fr
EP3527501B1 (fr
Inventor
Gerhard Klar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haussler and Sauter KG
Original Assignee
Haussler and Sauter KG
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Application filed by Haussler and Sauter KG filed Critical Haussler and Sauter KG
Publication of EP3527501A2 publication Critical patent/EP3527501A2/fr
Publication of EP3527501A3 publication Critical patent/EP3527501A3/fr
Application granted granted Critical
Publication of EP3527501B1 publication Critical patent/EP3527501B1/fr
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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
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/02—Packaging of substances, e.g. tea, which are intended to be infused in the package
    • B65B29/04—Attaching, or forming and attaching, string handles or tags to tea bags

Definitions

  • the invention relates to a method and a device for connecting a label with an infusion bag for infusion substances, mainly for tea by means of a thread.
  • the invention therefore relates to a method which solves this problem in a particularly advantageous manner, wherein the entire process for the machine in its combination is decisive for the advantages of the technical solution, resulting in a newly designed tea bag machine leads.
  • the process of attaching the thread to a label and the transport and the provision of the label, as well as the connection with thread, which in turn is on the other side of the label can be made advantageous.
  • the movements and paths in the machine are designed so that this mutual task is made particularly effective.
  • the bag is made in the machine as it would be made by hand.
  • the process begins with the folding of the bag and in subsequent steps thread and label are attached to it.
  • the arrangement with the exclusive transport of the label on the thread is connected at higher speeds with increasing accelerations and thus mechanical stresses that make high demands on the material qualities.
  • a preferred aspect of the invention relates to an arrangement which enables secure guidance of label and thread almost exclusively in grippers, even at higher speeds.
  • a disadvantage of the device mentioned is, as stated above, that the closure (head closure) of the double-chamber bag is carried out in the downtime of the machine and not during the current production process of the double-chamber bag.
  • the folding operations of the bag head are moved to an area which lies before the linking operation, which is for example in a own station or during the revolver movement can take place.
  • the DE 24 05 761 B1 shows the formation of the head closure during the run of the revolver.
  • the central turret however, no label turret is assigned, but the labels are fed in a channel on the tensile force on the label thread, which is associated with disadvantages.
  • the inventively preferred use of a label turret has the advantage that machine safety is given because the labels are not left to themselves, but are immediately returned to solid mechanical pliers after they are cut and can be inserted into their secure gripper mechanism in the uncut state and be processed in cycles according to the clock of the label turret.
  • the labels are pulled up the thread, which has the disadvantage that the thread is an unsafe means of transport and thus a safe label transport is not guaranteed.
  • the thread is introduced in the transfer of the label in the central turret in a thread catcher, is passed from the optionally with the assistance of a thread brake the thread in the stapler for attaching to the bag head.
  • the publication DE 60029184 T2 shows a label turret with arranged on its outer surface vacuum seats, which are provided for positioning and receiving the thread and the label tags.
  • a vacuum-supported mounting of said parts is described, but not a recording in clamping pockets, as described by the present invention. Therefore, the concerns DE 600 29 184 a machine for heat-sealable, plastic-contaminated material and is therefore unable to make bags from plastic-free filter paper or to connect thread and label by linking to the bag.
  • a central turret having a number of turret stations performing various operations, e.g. As a terminal, a receiving station for receiving the label 14, the station II, in which the teabag is introduced and the station III, in which the thread is linked to the tea bag.
  • a rocking lever 11 is used, which is designed as a one-armed lever and the label 8 in the form of a swinging motion touched behind and inserted into the clamping device.
  • the invention is therefore based on the DE 24 05 761 B1 the object of developing a method and an apparatus for producing double-chamber bags for infusion materials so that the machine has improved reliability at higher production speeds.
  • the invention is characterized by the features of the independent claims.
  • the label is fed to the central turret first and then following the bag and that in the central turret the bag is fed to the label.
  • the labels on the label strand remain in the label turret on the label strand until they have been entered and fixed and are still transported connected to the strand until they are fixed in the label turret.
  • the adaptable thread length to changed bag sizes allows for serial production of the machine because the subsequent format decision can be made with regard to different bag shapes and sizes with little adaptation.
  • the knotting is not performed on a previously separated label (17), but during the entire process of feeding and discharging and also during knotting the label to be processed (16) still depends on the label strand (14).
  • the entire downtime of the turret for the pitching movement of the stapler and the weaving of the thread on the infusion bag is available due to the already pre-formed during the turret movement head folds.
  • a further preferred embodiment of the invention results from the fact that an increase in the production speed is also due to the fact that a cutting operation is required on the supply and processing of the label and by mechanical devices is ensured that no collision of the cutting tools with the feeding tools of the label takes place.
  • Characteristic of this solution is that a geometric collision of the scissors and the stapler (Knoter) is avoided in the label feed.
  • the invention is based on the finding that it is possible to significantly improve production reliability when the label feed is improved.
  • the linking and the cutting are close together and are in a relatively close spatial relationship to one another, because the thread is cut off together with the label during the cutting, which has the advantage that no protruding threads can cause interference. This has a favorable effect on a liquid machine sequence.
  • Yarn brakes have the task of grasping the thread so tightly that its position is fixed, but it can still be easily pulled through. Furthermore, where possible, the thread is routed in grooves, channels, slots or the like, without being described in detail each time. When drawing the thread from a tangential position in the direction of the center, the thread quality and tension may not be sufficient in every case. Then it is easily possible to mechanically open the brake. Where that could be advantageous in rotating parts, a possibility of controlled brake opening is shown.
  • the critical transport operations of the label take place only when the label is still on the undivided label tape and not in individual position. Only on a short way the label is still pushed, which is associated with the advantage that due to the short transport distance neither jamming of the label nor a disadvantageously long transport is connected.
  • a processing of the label is carried out in bound transport mode, that is, as long as the label hangs on the label tape, therefore, is dispensed with a longer transport of the individual label over longer transport distances. Above all, transport of the label by pulling on the label thread is avoided.
  • Another preferred feature of the invention is that - as shown above - the folding device for the production of the bag head from the station of the connection of the thread taken out of the bag head and advanced for it.
  • the bag must be fixed in the revolver during rotation and opened during insertion and removal of the bag. For this purpose, a controlled movement must be introduced into the revolver.
  • Length of the thread 18 is adjustable
  • the geometry of the machine had to be changed to produce a different thread length.
  • the length of the thread is determined by the transport path and not changeable.
  • format changes can be made more easily. There must also be made fewer changes to the machine, because an important feature in the format change, namely the free choice of the thread length, is now easy to do.
  • the needle 26 should compensate for certain changes in length in the transfer of the thread 18. This is the subject of a claim.
  • the head closure is made before the thread is attached to the bag head. So there is no time load or unwanted delay, like in the prior art.
  • the second part of the cover of the head closure is done via a passive element, namely a chicane.
  • the novel machine has a reduced number of functions compared to the prior art.
  • the stitched label is fed to the label turret 20 and a loop is made. It is important that the stapled label is fed to the central turret 12 and it is mechanically clean and safely positioned.
  • the thread 18 attached to the label must be adjusted to the correct length and must be mechanically guided throughout. He must always be caught and excited. If the thread goes out of its guide, a disturbance occurs, which must be avoided in any case.
  • the thread 18 must therefore be permanently guided and also have the correct length. He must also be led to the right point of the machine.
  • a particular advantage of the invention is that the elements for the thread guide largely passive mechanical elements (brakes and channels), which is important to the functioning of such a machine.
  • Passive elements are set once and then remain in their position.
  • Fig.1 gives an example of a machine overview of the arrangement of the workstations for a method for the production of bags for infusions. To better understand the context, only innovations are described in detail.
  • a clocked turret device 2 is mounted, are arranged on the circumferentially distributed workstations, as in the aforementioned patents and in packaging technology usual.
  • the arrangement of the workstations is described by way of example on an 8-part turret in the order of successive steps.
  • the process begins at the feed station 3 and ends at the removal station 10.
  • the label 16, 17 is introduced with the thread 18 in the central turret 2.
  • the foremost label on the Label strand 14 is provided with the reference numeral 16, while each other individual label is provided with or without attached thread 18 by the reference numeral 17.
  • FIG. 1 is shown on the left side of a known metering device 120, wherein in the forming station 121, the tube 60 is formed.
  • the front part of the tube 60 is cut off with the cutting device 122 and ready for insertion into the central turret 12.
  • the transfer station 6 - ie the 90 ° turn of the prefolded head of the head closure - is carried out in a run (so to speak as a continuation of station 5) and concerns the envelope of the upper flap of the bag head closure. This happens when passing the protruding upper flap on the outer circle of Central turret 12 by a passive element, which is here called chicane 65 ( Figure 10).
  • the thread 18 is attached to the bag. This will be discussed later in more detail.
  • control station 8 In the control station 8 is checked whether the thread 18 is really attached to the label 17 and the bag.
  • transfer bag station 9 This process is followed in the transfer bag station 9 by the wrapping of the bag with a "transfer bag” made of paper (margins knurled), plastic film (heat-welded), or the like.
  • the turret device 2 rotates in the direction of arrow 124 past the work stations 3 to 10.
  • a transfer film 11 in the direction of arrow 127 by two conveyor rollers 128 of the transfer bag 9 is supplied.
  • the bag is pulled out, then the Umlessnessfolie 11 is supplied, cut off and the bag is returned together with the Umlessnessfolie 11 between the jaws of the central turret 12 again.
  • the aforementioned supply of the Umlessnessfolie 11 is realized ( FIG. 1 ).
  • the infusion bag is removed and the outer bag surrounding it is closed, if this has not already been done in the repacking station 9.
  • the figures can then also be mirror-image, i. the fixed arm with the folding prism, in which the label is inserted, can be seen in the running direction, arranged behind.
  • the thread loop 27 gives the thread 18 the length he needs to wrap, knot, etc. of the teabag.
  • the thread 18 is gem.
  • Fig. 1 from a thread roll 117 via a yarn brake 25 (FIG. Fig. 2a ) and runs over a thread deflection 24.
  • the thread deflection 24 ( Fig. 2c ) is a needle 26 downstream and ensures that the thread 18 without whip effect (ie no loops forming) remains taut and gets the predetermined length.
  • the loop formation by a rapid vertical movement of the needle 26 makes it possible that the label is not loaded with a tensile force, because the thread 18 is firmly clamped on one side in a clamping lever 22 and on the other side of the bobbin on the set Thread brakes 24, 25 can be easily removed.
  • FIGS. 3a to 3d If the stapling is to take place very close to the leading edge of the label 17, constructional dimensions of the stapler 15 can make such stapling difficult to place the stapler 15 and the scissors 30 close enough to each other (Figs Figures 3a-3d let this in anticipation).
  • the position of the scissors 30 is fixed because the foremost label 16 is to be transported in association with the label strand 14. It is a stated aim of the invention to transport the individual label 17 as far as possible not individually. This is achieved by allowing the innovation described herein without sacrificing functionality to grow the stapler 15 away from the shear 30 as much as desired for design reasons. This is possible if the label strand 14 - as in Fig.
  • FIGS. 2a and 2b show the supply of thread 18 and label 16, 17 in the label turret 20th
  • the process begins - when the machine enters the supply of the label strand 14 and the thread 18 to the stapler 15. In this, the thread is stapled to the foremost label 16 ( FIG. 2a ).
  • the labels 17 are not placed directly in the central turret 12, but via an interposed label turret 20, through which, as can be seen in the progress, the thread 18 with the label 17 are turned upside down, which is the thread guide in the central Revolver 12 is advantageous.
  • a stapler 15 is supplied, as for example from the DE 2 607 247 A1 is known.
  • FIG. 2b the foremost label 16 is pushed beyond the cutting device 30 into the chamber 19 in the label revolver 20, wherein the main bar 21 (now mounted on the clamping lever 22 and on the turret wall) is moved.
  • Figure 8a is closed.
  • the main beam 21 receives a pocket 141 ( Fig. 8b ) for the label as well as a groove 140, which for engaging behind the label, for example with a pusher 39 ( FIG. 6a ) is trained.
  • an extension 142 beyond the label is provided for the groove.
  • the FIG. 2a shows, moreover, a node 131 (not drawn to scale), which is formed with the stapler 15.
  • the foremost label 16 with attached thread 18 is fixed by the movable clamping lever 22 cam-controlled against the fixed main beam 21 of the chamber 19.
  • the thread 18 is taking advantage of the possible space in the stapler 15 at a slight angle 23 from node 131 of the foremost label 16 further to a thread guide 24 and / or. Thread brake 25 guided ( FIG. 2b ).
  • a small gap 23a into which the needle 26 is inserted which, if required for stability reasons, after "back” to a stable rod-shaped component, continuously called “needle 26", is amplified.
  • needle 26 continuously called “needle 26"
  • FIG. 2a the above-mentioned needle 26 is shown, which is used to form a thread loop 27 (FIG. Figure 2c ) serves.
  • the needle 26 is located beyond the shear 30, which operates with the movable blade 28.
  • Reference symbol 86 describes the enveloping circle of the label revolver 20.
  • the thread 18 After the thread 18 has reached the desired length in the thread loop 27, which is required for the subsequent attachment and wrapping of the infusion bag, the thread 18 is attached to the second label 17 of the label strand 14 ( Figure 2c ). Now the foremost label 16 is separated from the following label 17 together with the thread with the scissors 30.
  • the label turret 20 is rotated in the direction of arrow 132 ( FIG. 2a ) driven and transported now clamped between the main bar 21 and clamping lever 22 and knotted label 16 in the direction of arrow 132 in the case shown by a rotation angle of 180 ° to the transfer point for the label in the central turret 12th
  • An advantage of the invention is the arrangement of a self-contained label turret 20, because it is useful for a spatial unbundling of complicated technical processes, by the node formation spatially from the Central turret provides clearance and thus makes the machine with little technical effort clearer and easier maintenance. Throughout the path of the label 17 severed from the label strand 14 this is mechanically fixed and thus very easily subjected to a check before it can be fed from a secure position the central turret 12.
  • thread 18 and label can be moved to any position of the label in the longitudinal direction, including the front edge.
  • the first stapling begins with the label inserted at the desired stapling point ( FIG. 3a ). After stapling, the label tape 14 is fed forward by one label length ( FIG. 3b ).
  • FIG. 3d figure shows where the separation of the foremost label 16 takes place together with the thread 18 (similar Figure 2c ). After separation, the second label 17 becomes the foremost label 16 on the label strand 14. It has already attached the thread 18. As well as when opening the scissors 30, the scissors blade 28 on the enveloping circle 86 of the label turret, as in FIG. 4b has been moved, does not interfere with the scissors blade 28, the subsequent rotation of the label turret 20.
  • the additional necessary for the transport of the label strand 14 components are easy to insert.
  • the invention provides the important possibility, namely the attachment of the thread 18 at each desired location of the label 16, 17, in the longitudinal direction in the edge region of the label 16, 17 make.
  • Figure 3a to 3d especially suitable.
  • the FIGS. 3a and 3b show the same conditions, based on the FIGS. 2a and 2b have been described, but with the difference that the node 131 is now at the edge of the label 16, but otherwise the same reference numerals have been used for the same parts.
  • node 131 can be placed anywhere on the label 16.
  • reference numeral 16 always denotes the foremost label on the strand, which has not yet been cut off, while the reference numeral 17 represents a single label with or without attached thread 18, usually the second on the label 16 following label, if applicable also within the label strand or eg a single label in one of the revolver pockets. This is why in FIG. 2b the not yet cut off individual label 16 shown, which is received in the clamping receptacle between the main beam 21 and clamping lever 22 by clamping.
  • FIGS. 4 are used to represent the thread condition during revolver rotation, in particular its tightness, until it is trapped in the thread brake 34.
  • the FIGS. 4a to 4e show the further progress after clamping the label 16 in the chamber 19 in the label turret 20, limited by the main bar 21 and clamping lever 22, wherein the clamping lever 22 is pivotally formed via a pivot point 134 and its rotation is controlled by a cam plate 40 with an associated Cam 136.
  • a further clamping lever 22 ' is present, which has a same terminal receptacle 19', so that the front terminal receiving 19, which receives the new label, after rotation by 180 ° to the terminal receiving 19 ', the label to the Central turret 12 delivers.
  • the cam plate 40 may be designed so that closes at a corresponding position of the alternately driven pulley chamber 19 with terminal receptacle after receiving the new label and the delivery of the label to be handed to the central turret 12, the pocket 19 'opens.
  • yarn brake 33 should be designed so that the thread 18 is always kept taut.
  • rotation of the label turret 20 in the direction of arrow 132 of the tensioned thread 18 is shorter, as will be shown in detail later. This shortening is compensated by a controlled stroke movement of the needle 26, so that the thread remains taut.
  • thread paths serves a deflection 79 with a slight braking function.
  • This deflection 79 also has the task of keeping the thread 18 in the direction until it, as in Fig. 4d and 5a shown, is detected by the channel 37 and the thread brake 34 in the label turret 20.
  • the 4a to 4e show the development of coming out of the thread loop 27 thread length detail.
  • the thread 18 does not sag, but taut and manageable, the thread loop 27 is so far withdrawn with the needle 26 so that it receives at least the liberated thread length, so that the thread 18 formed in the guide slots of guide slot 37 and thread brake 34 taut is introduced.
  • the FIGS. 4a-4e show the progressive position of the label during rotation with the label turret 20.
  • FIG. 4a shows the starting point of processing similar to in Figure 2c ,
  • the movable scissor blade 28 is moved out of the region of the enveloping circle 86 prior to rotation of the label turret 20, as in FIG. 4b shown.
  • Missing thread 18 is drawn from the thread brake 33 via a deflection 79.
  • the thread 18 initially applies to the individual label 17 up to its lower edge 74 ( 4c ), before turning further by about 40 ° ( Fig.4d ) rests on the surface of the opened thread brake 34 and the bottom of the channel 37 of the label turret 20.
  • the clamping lever 22 supports the protrusions of the label to about the end lower edge 74 against the tensile force occurring when tightening the thread.
  • FIG.4E represents the end position of the rotation and before the transfer of the label 17 with thread 18 into the receiving slot 36 (FIG. Fig. 1 ) of the central turret 12.
  • the thread brake 34 in the label turret 20 can advantageously be opened and closed during the rotation ( Fig.5a to 5e ).
  • An opening may be desirable to facilitate threading and to ensure that the thread 18 is actually inserted into the brake.
  • FIGS. 5d and 5e show that after the thread 18 rests on the pin 93, the cam 105 is left in the further rotation.
  • the lever 92 and the brake cylinder 90 are moved by the compression spring 89 to the wall of the channel 37.
  • the thread 18 is clamped.
  • the compression spring 89 very weak form, the pressing of the lever 92 can be supported on the cup wheel 102 with a larger required force by another compression spring 103, while the compression spring 89 is very light , This situation is in the FIGS. 5d and 5e to see.
  • Figure 4e shows the transfer position of the label 17 with thread 18 in the label turret 20.
  • the transfer to the central revolver 12 shows FIG. 6a ,
  • the clamping of the label 17 is dissolved in the label turret 20 and it is pushed together with its thread 18 by a transfer element, such as a Ausschub lever 39, in the receiving slot 36.
  • the receiving slot 36 is formed from the fixedly connected to the central turret 12 main beam 41 and the folding shoulders 47.
  • the eject lever 39 as the label turret 20 has rotated from its collision position, pivots in the interior of the label turret 20 on the web 139 and is ready for the next machine cycle on arrival of the new label 17.
  • the thread 18a in FIG. 6a shows the position of the thread 18 when the label 17 is still sitting in the label turret 20, while the position of the thread 18b represents the same thread 18 when it is received in the central turret 12. Since the thread 18a between the thread brake 34 and label 17 in the label turret 20 is shorter than the thread 18b between thread brake 34 and label 17 in Central turret 12, the missing thread 18 is drawn from the channel 38 of the thread brake 34. The thread 18 remains taut and slides safely into the channel 38 of the thread catcher 32 inside. In this situation, there is no component of the force that could pull the thread 18 radially out of the thread brake 34 and thereby result in a floppy thread that would no longer remain secure in the channel 38 of the thread catcher 32. This is a particular advantage of the invention.
  • the thread 18 is connected by a thread holding pin 72, which is connected to a brake cylinder 99 ( Figure 7c, 7d ), prevented from slipping out of the channel 38 during further rotation of the central turret 12.
  • FIG. 7b shows this on average.
  • the connected to the thread holding pin 72 brake cylinder 99 presses braking on the thread 18, while the retaining pin 72 prevents it slipping out transversely to the yarn direction, so that he in FIG. 7b can only be moved in its pulling direction.
  • the thread brake 35 causes the position of the thread 18 is secured for knotting.
  • FIG. 7c shows the yarn brake 35 in the open state.
  • the thread 18 can slide in and out from any direction.
  • the opening is effected by a plunger 98, which pushes the interconnected machine parts guide pin 101, yoke 104, brake cylinder 99 with thread holding pin 72 against the force of the compression spring 97 from the channel 38. Since the operation of the yarn brake 35 takes place only in holding positions, the control is easy. If an extension of the suture catcher 32 together with its channel bring advantages, for example, with certain yarn qualities better directional stability, the thread catcher 32 could possibly on the enveloping circle of in Figure 7a extend beyond the illustrated clamping bar 58.
  • FIG. 7b It follows, moreover, that the thread 18 is clamped in the channel 38 of the thread catcher 32 as needed.
  • the thread catcher 32 is fixedly connected to the clamping bar 58.
  • clamping bar 58 and thread catcher 32 represent a single part, which is treated separately only for the sake of better understanding.
  • FIG. 7d On a larger scale the trapped thread 18 and FIG. 7c the open brake for inserting at the label input and removing the thread 18 in the later bag removal.
  • FIGS. 7a to 7c show that in order to later attach the thread 18 to the bag, the thread 18 must be provided at a well-defined location.
  • the channel 38 is provided in the thread catcher 32.
  • the thread holding pin 72 according to the invention which traverses the channel 38 of the thread catcher 32 behind the thread 18, is arranged at the front free end of the brake cylinder 99.
  • the thread holding pin 72 has the function that the thread 18 can indeed be pulled longitudinally, but can no longer slide laterally out of the channel 38.
  • FIGS. 7b and 7c show, moreover, a plunger (opener) 98, which controls the thread brake 35 in the thread catcher 32.
  • a plunger (opener) 98 which controls the thread brake 35 in the thread catcher 32.
  • state brake cylinder 99 are pressed with thread holding pin 72 of the compression spring 97 via a guide pin 101 with a connected bridge 104 against the wall of the channel 38, whereby the brake cylinder 99 acts as a brake and the thread holding pin 72 holds the thread 18 securely in the channel 38 ,
  • FIGS. 7a and 6a and 6b show in side view the barrel of the through Thread holding pin 72 trapped thread 18 in different stages of the central turret 12th
  • the bags are formed from a belt 62 coming from the roll 61 (e.g., filter paper) by placing pre-dosed tea portions 63 in volume adjustable metering chambers in portions.
  • the band 62 is folded around the tea portions 63 to a tube 60.
  • the foremost piece of tubing is separated and folded by a bottom folder consisting of sword and walls to an upside down "V", the later bag bottom. Since these operations are well known, they are not shown.
  • the piece separated from the bag tube 123 is then pulled into the chamber 19 of the label turret 20. Since the thread 18 is guided on both sides of the chamber 19, on the one side on the label 17, on the other in the channel 38 of the thread catcher 32, the forming bag pushes therebetween, whereby the thread is wrapped around the bag.
  • the processes in the central turret 12 take place in an area in front of the turret wall into which a main beam 41 fixedly connected extends.
  • the first independent movement is the pressing of the bag against the main bar 41 (FIG. FIG. 1 ).
  • the bag to be closed is in the pocket 75 in the central turret 12.
  • the clamping bar 58 which is connected via compression springs on the working bar 44, guided to the main bar 41 until the bag is clamped.
  • FIG. 6b Here are off FIG. 6b can be seen that the working beam 44 is supported by the compression spring 59 on the fixed part of the yarn catcher 32.
  • the level 2 (control disc 53 with transhipment tongue) is constructed on the working bar 44 of the level 3, as well as the level 1 is constructed on level 2.
  • a stapler known by DE 2 027 167 , provided that staples the thread 18 to the bag.
  • the stapler is outside the enveloping circle 87 in the waiting position until the bag with the angled 90 ° upper part of the bag head in the stitching station 7 arrived.
  • the stapler now swings into the head area and thereby folds the bag head to 180 °.
  • the stitching happens as in DE1 522 496 A1 described, with the help of a hook needle.
  • the safe operation of this process is, as already mentioned, a precise position of the thread 18 ahead, at which the hook needle the thread 18th finds.
  • the transition tongue 54 may be material integrally connected to the respective control disk 53.
  • the infusion bag for further processing either in a bag or a carton is inserted, he is deprived of control. Therefore, it is checked in the control station 8 whether the thread 18 is firmly seated on the bag and on the label 16.
  • the clamping bar 58 is slightly opened and thus the thread 18 is stretched between bag knitting and thread catcher 32 and loaded by a test lever.
  • the (not shown) test lever is stopped, dissolves
  • the thread 18 from the bag or label 17 the test lever falls deeper into the pocket 75 and triggers an interference signal to the device control.
  • the controller causes in case of failure in the further progress, as usual, the ejection of the defective bag.
  • the bag In the removal station 10, the bag, as is common practice, pulled out with a pair of pliers from the open for removal chamber 19. If appropriate, the bag enveloped by the transfer bag is transferred to a closure apparatus or pulled through by a corresponding device, for example heated rolls for heat sealing, unless the connection has already been carried out at the preceding station.

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EP19153221.7A 2018-01-24 2019-01-23 Procédé de fabrication de sachets d'infusion Active EP3527501B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018101570.4A DE102018101570A1 (de) 2018-01-24 2018-01-24 Verfahren und Vorrichtung zur Herstellung von Aufgussbeuteln

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EP3527501A2 true EP3527501A2 (fr) 2019-08-21
EP3527501A3 EP3527501A3 (fr) 2019-12-11
EP3527501B1 EP3527501B1 (fr) 2022-03-02

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EP3960427A1 (fr) 2020-08-31 2022-03-02 Teepack Spezialmaschinen GmbH & Co. KG Dispositif de fabrication d'un sachet reçu dans une enveloppe
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EP4375204A1 (fr) 2022-11-25 2024-05-29 Häussler & Sauter KG Procédé et dispositif de fabrication d'un sachet filtre pour boissons chaudes

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DE102018101570A1 (de) 2019-07-25
EP3527501B1 (fr) 2022-03-02

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